--- /dev/null
+From d4ad304841a9790d4fa35e51d6aa9baeba631559 Mon Sep 17 00:00:00 2001
+From: Masakazu Mokuno <mokuno@sm.sony.co.jp>
+Date: Thu, 30 Oct 2008 08:17:18 +0000
+Subject: [PATCH] powerpc/ps3: Fix memory leak in device init
+
+Free dynamically allocated device data structures when device registration
+fails. This fixes memory leakage when the registration fails.
+
+Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
+Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Paul Mackerras <paulus@samba.org>
+---
+ arch/powerpc/platforms/ps3/device-init.c | 29 ++++++++++++++++++++++++-----
+ 1 files changed, 24 insertions(+), 5 deletions(-)
+
+diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c
+index ffdd8e9..43816da 100644
+--- a/arch/powerpc/platforms/ps3/device-init.c
++++ b/arch/powerpc/platforms/ps3/device-init.c
+@@ -314,11 +314,17 @@ static int __init ps3_setup_vuart_device(enum ps3_match_id match_id,
+
+ result = ps3_system_bus_device_register(&p->dev);
+
+- if (result)
++ if (result) {
+ pr_debug("%s:%d ps3_system_bus_device_register failed\n",
+ __func__, __LINE__);
+-
++ goto fail_device_register;
++ }
+ pr_debug(" <- %s:%d\n", __func__, __LINE__);
++ return 0;
++
++fail_device_register:
++ kfree(p);
++ pr_debug(" <- %s:%d fail\n", __func__, __LINE__);
+ return result;
+ }
+
+@@ -463,11 +469,17 @@ static int __init ps3_register_sound_devices(void)
+
+ result = ps3_system_bus_device_register(&p->dev);
+
+- if (result)
++ if (result) {
+ pr_debug("%s:%d ps3_system_bus_device_register failed\n",
+ __func__, __LINE__);
+-
++ goto fail_device_register;
++ }
+ pr_debug(" <- %s:%d\n", __func__, __LINE__);
++ return 0;
++
++fail_device_register:
++ kfree(p);
++ pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
+ return result;
+ }
+
+@@ -491,11 +503,18 @@ static int __init ps3_register_graphics_devices(void)
+
+ result = ps3_system_bus_device_register(&p->dev);
+
+- if (result)
++ if (result) {
+ pr_debug("%s:%d ps3_system_bus_device_register failed\n",
+ __func__, __LINE__);
++ goto fail_device_register;
++ }
+
+ pr_debug(" <- %s:%d\n", __func__, __LINE__);
++ return 0;
++
++fail_device_register:
++ kfree(p);
++ pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
+ return result;
+ }
+
+--
+1.6.0.4
+
From 9b82f3e61758ed897200f0244b63a77c1791bcba Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Date: Thu, 30 Oct 2008 08:12:58 +0000
-Subject: powerpc/ps3: Replace the flip_ctl logic in ps3av and ps3fb by a mutex
+Subject: [PATCH] powerpc/ps3: Replace the flip_ctl logic in ps3av and ps3fb by a mutex
Introduce ps3_gpu_mutex to synchronizes GPU-related operations, like:
- invoking the L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT command using the
+++ /dev/null
-From 46d01492b2c50791b9b66f9b9154ac8d25acaeb9 Mon Sep 17 00:00:00 2001
-From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
-Date: Wed, 3 Dec 2008 13:52:21 +0000
-Subject: powerpc/ps3: Add sub-match id modalias support
-
-commit 059e4938f8b060b10c4352e6c45739473bc73267 ("powerpc/ps3: Add a sub-match
-id to ps3_system_bus") forgot to update the module alias support:
- - Add the sub-match ids to the module aliases, so udev can distinguish
- between different types of sub-devices.
- - Rename PS3_MODULE_ALIAS_GRAPHICS to PS3_MODULE_ALIAS_GPU_FB, as ps3fb
- binds to the "FB" sub-device.
-
-Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
-Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
-Signed-off-by: Paul Mackerras <paulus@samba.org>
----
- arch/powerpc/include/asm/ps3.h | 53 ++++++++++++++---------------
- arch/powerpc/platforms/ps3/device-init.c | 4 +-
- arch/powerpc/platforms/ps3/system-bus.c | 10 +++--
- drivers/video/ps3fb.c | 6 ++--
- 4 files changed, 37 insertions(+), 36 deletions(-)
-
-diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
-index 4299365..cff30c0 100644
---- a/arch/powerpc/include/asm/ps3.h
-+++ b/arch/powerpc/include/asm/ps3.h
-@@ -305,30 +305,34 @@ static inline const char* ps3_result(int result)
- /* system bus routines */
-
- enum ps3_match_id {
-- PS3_MATCH_ID_EHCI = 1,
-- PS3_MATCH_ID_OHCI = 2,
-- PS3_MATCH_ID_GELIC = 3,
-- PS3_MATCH_ID_AV_SETTINGS = 4,
-- PS3_MATCH_ID_SYSTEM_MANAGER = 5,
-- PS3_MATCH_ID_STOR_DISK = 6,
-- PS3_MATCH_ID_STOR_ROM = 7,
-- PS3_MATCH_ID_STOR_FLASH = 8,
-- PS3_MATCH_ID_SOUND = 9,
-- PS3_MATCH_ID_GRAPHICS = 10,
-- PS3_MATCH_ID_LPM = 11,
-+ PS3_MATCH_ID_EHCI = 1,
-+ PS3_MATCH_ID_OHCI = 2,
-+ PS3_MATCH_ID_GELIC = 3,
-+ PS3_MATCH_ID_AV_SETTINGS = 4,
-+ PS3_MATCH_ID_SYSTEM_MANAGER = 5,
-+ PS3_MATCH_ID_STOR_DISK = 6,
-+ PS3_MATCH_ID_STOR_ROM = 7,
-+ PS3_MATCH_ID_STOR_FLASH = 8,
-+ PS3_MATCH_ID_SOUND = 9,
-+ PS3_MATCH_ID_GPU = 10,
-+ PS3_MATCH_ID_LPM = 11,
- };
-
--#define PS3_MODULE_ALIAS_EHCI "ps3:1"
--#define PS3_MODULE_ALIAS_OHCI "ps3:2"
--#define PS3_MODULE_ALIAS_GELIC "ps3:3"
--#define PS3_MODULE_ALIAS_AV_SETTINGS "ps3:4"
--#define PS3_MODULE_ALIAS_SYSTEM_MANAGER "ps3:5"
--#define PS3_MODULE_ALIAS_STOR_DISK "ps3:6"
--#define PS3_MODULE_ALIAS_STOR_ROM "ps3:7"
--#define PS3_MODULE_ALIAS_STOR_FLASH "ps3:8"
--#define PS3_MODULE_ALIAS_SOUND "ps3:9"
--#define PS3_MODULE_ALIAS_GRAPHICS "ps3:10"
--#define PS3_MODULE_ALIAS_LPM "ps3:11"
-+enum ps3_match_sub_id {
-+ PS3_MATCH_SUB_ID_GPU_FB = 1,
-+};
-+
-+#define PS3_MODULE_ALIAS_EHCI "ps3:1:0"
-+#define PS3_MODULE_ALIAS_OHCI "ps3:2:0"
-+#define PS3_MODULE_ALIAS_GELIC "ps3:3:0"
-+#define PS3_MODULE_ALIAS_AV_SETTINGS "ps3:4:0"
-+#define PS3_MODULE_ALIAS_SYSTEM_MANAGER "ps3:5:0"
-+#define PS3_MODULE_ALIAS_STOR_DISK "ps3:6:0"
-+#define PS3_MODULE_ALIAS_STOR_ROM "ps3:7:0"
-+#define PS3_MODULE_ALIAS_STOR_FLASH "ps3:8:0"
-+#define PS3_MODULE_ALIAS_SOUND "ps3:9:0"
-+#define PS3_MODULE_ALIAS_GPU_FB "ps3:10:1"
-+#define PS3_MODULE_ALIAS_LPM "ps3:11:0"
-
- enum ps3_system_bus_device_type {
- PS3_DEVICE_TYPE_IOC0 = 1,
-@@ -337,11 +341,6 @@ enum ps3_system_bus_device_type {
- PS3_DEVICE_TYPE_LPM,
- };
-
--enum ps3_match_sub_id {
-- /* for PS3_MATCH_ID_GRAPHICS */
-- PS3_MATCH_SUB_ID_FB = 1,
--};
--
- /**
- * struct ps3_system_bus_device - a device on the system bus
- */
-diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c
-index 43816da..dbc124e 100644
---- a/arch/powerpc/platforms/ps3/device-init.c
-+++ b/arch/powerpc/platforms/ps3/device-init.c
-@@ -497,8 +497,8 @@ static int __init ps3_register_graphics_devices(void)
- if (!p)
- return -ENOMEM;
-
-- p->dev.match_id = PS3_MATCH_ID_GRAPHICS;
-- p->dev.match_sub_id = PS3_MATCH_SUB_ID_FB;
-+ p->dev.match_id = PS3_MATCH_ID_GPU;
-+ p->dev.match_sub_id = PS3_MATCH_SUB_ID_GPU_FB;
- p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
-
- result = ps3_system_bus_device_register(&p->dev);
-diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
-index 661e9f7..d3da1e6 100644
---- a/arch/powerpc/platforms/ps3/system-bus.c
-+++ b/arch/powerpc/platforms/ps3/system-bus.c
-@@ -175,7 +175,7 @@ int ps3_open_hv_device(struct ps3_system_bus_device *dev)
- return ps3_open_hv_device_sb(dev);
-
- case PS3_MATCH_ID_SOUND:
-- case PS3_MATCH_ID_GRAPHICS:
-+ case PS3_MATCH_ID_GPU:
- return ps3_open_hv_device_gpu(dev);
-
- case PS3_MATCH_ID_AV_SETTINGS:
-@@ -213,7 +213,7 @@ int ps3_close_hv_device(struct ps3_system_bus_device *dev)
- return ps3_close_hv_device_sb(dev);
-
- case PS3_MATCH_ID_SOUND:
-- case PS3_MATCH_ID_GRAPHICS:
-+ case PS3_MATCH_ID_GPU:
- return ps3_close_hv_device_gpu(dev);
-
- case PS3_MATCH_ID_AV_SETTINGS:
-@@ -453,7 +453,8 @@ static int ps3_system_bus_uevent(struct device *_dev, struct kobj_uevent_env *en
- {
- struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
-
-- if (add_uevent_var(env, "MODALIAS=ps3:%d", dev->match_id))
-+ if (add_uevent_var(env, "MODALIAS=ps3:%d:%d", dev->match_id,
-+ dev->match_sub_id))
- return -ENOMEM;
- return 0;
- }
-@@ -462,7 +463,8 @@ static ssize_t modalias_show(struct device *_dev, struct device_attribute *a,
- char *buf)
- {
- struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
-- int len = snprintf(buf, PAGE_SIZE, "ps3:%d\n", dev->match_id);
-+ int len = snprintf(buf, PAGE_SIZE, "ps3:%d:%d\n", dev->match_id,
-+ dev->match_sub_id);
-
- return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
- }
-diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
-index bd3e39b..38ac805 100644
---- a/drivers/video/ps3fb.c
-+++ b/drivers/video/ps3fb.c
-@@ -1289,8 +1289,8 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
- }
-
- static struct ps3_system_bus_driver ps3fb_driver = {
-- .match_id = PS3_MATCH_ID_GRAPHICS,
-- .match_sub_id = PS3_MATCH_SUB_ID_FB,
-+ .match_id = PS3_MATCH_ID_GPU,
-+ .match_sub_id = PS3_MATCH_SUB_ID_GPU_FB,
- .core.name = DEVICE_NAME,
- .core.owner = THIS_MODULE,
- .probe = ps3fb_probe,
-@@ -1348,4 +1348,4 @@ module_exit(ps3fb_exit);
- MODULE_LICENSE("GPL");
- MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
- MODULE_AUTHOR("Sony Computer Entertainment Inc.");
--MODULE_ALIAS(PS3_MODULE_ALIAS_GRAPHICS);
-+MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);
---
-1.6.0.4
-
--- /dev/null
+From 62d80749addc969803a173573889f9b01d2459e1 Mon Sep 17 00:00:00 2001
+From: Geoff Levand <geoffrey.levand@am.sony.com>
+Date: Wed, 3 Dec 2008 13:52:15 +0000
+Subject: [PATCH] powerpc/ps3: Quiet dmesg output
+
+Change the debug message in dma_sb_region_create() from
+pr_info() to DBG() to quiet the dmesg output.
+
+Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Paul Mackerras <paulus@samba.org>
+---
+ arch/powerpc/platforms/ps3/mm.c | 2 +-
+ 1 files changed, 1 insertions(+), 1 deletions(-)
+
+diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
+index 3a58ffa..a4d49dd 100644
+--- a/arch/powerpc/platforms/ps3/mm.c
++++ b/arch/powerpc/platforms/ps3/mm.c
+@@ -649,7 +649,7 @@ static int dma_sb_region_create(struct ps3_dma_region *r)
+ {
+ int result;
+
+- pr_info(" -> %s:%d:\n", __func__, __LINE__);
++ DBG(" -> %s:%d:\n", __func__, __LINE__);
+
+ BUG_ON(!r);
+
+--
+1.6.0.4
+
--- /dev/null
+From 46d01492b2c50791b9b66f9b9154ac8d25acaeb9 Mon Sep 17 00:00:00 2001
+From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
+Date: Wed, 3 Dec 2008 13:52:21 +0000
+Subject: [PATCH] powerpc/ps3: Add sub-match id modalias support
+
+commit 059e4938f8b060b10c4352e6c45739473bc73267 ("powerpc/ps3: Add a sub-match
+id to ps3_system_bus") forgot to update the module alias support:
+ - Add the sub-match ids to the module aliases, so udev can distinguish
+ between different types of sub-devices.
+ - Rename PS3_MODULE_ALIAS_GRAPHICS to PS3_MODULE_ALIAS_GPU_FB, as ps3fb
+ binds to the "FB" sub-device.
+
+Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
+Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Paul Mackerras <paulus@samba.org>
+---
+ arch/powerpc/include/asm/ps3.h | 53 ++++++++++++++---------------
+ arch/powerpc/platforms/ps3/device-init.c | 4 +-
+ arch/powerpc/platforms/ps3/system-bus.c | 10 +++--
+ drivers/video/ps3fb.c | 6 ++--
+ 4 files changed, 37 insertions(+), 36 deletions(-)
+
+diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
+index 4299365..cff30c0 100644
+--- a/arch/powerpc/include/asm/ps3.h
++++ b/arch/powerpc/include/asm/ps3.h
+@@ -305,30 +305,34 @@ static inline const char* ps3_result(int result)
+ /* system bus routines */
+
+ enum ps3_match_id {
+- PS3_MATCH_ID_EHCI = 1,
+- PS3_MATCH_ID_OHCI = 2,
+- PS3_MATCH_ID_GELIC = 3,
+- PS3_MATCH_ID_AV_SETTINGS = 4,
+- PS3_MATCH_ID_SYSTEM_MANAGER = 5,
+- PS3_MATCH_ID_STOR_DISK = 6,
+- PS3_MATCH_ID_STOR_ROM = 7,
+- PS3_MATCH_ID_STOR_FLASH = 8,
+- PS3_MATCH_ID_SOUND = 9,
+- PS3_MATCH_ID_GRAPHICS = 10,
+- PS3_MATCH_ID_LPM = 11,
++ PS3_MATCH_ID_EHCI = 1,
++ PS3_MATCH_ID_OHCI = 2,
++ PS3_MATCH_ID_GELIC = 3,
++ PS3_MATCH_ID_AV_SETTINGS = 4,
++ PS3_MATCH_ID_SYSTEM_MANAGER = 5,
++ PS3_MATCH_ID_STOR_DISK = 6,
++ PS3_MATCH_ID_STOR_ROM = 7,
++ PS3_MATCH_ID_STOR_FLASH = 8,
++ PS3_MATCH_ID_SOUND = 9,
++ PS3_MATCH_ID_GPU = 10,
++ PS3_MATCH_ID_LPM = 11,
+ };
+
+-#define PS3_MODULE_ALIAS_EHCI "ps3:1"
+-#define PS3_MODULE_ALIAS_OHCI "ps3:2"
+-#define PS3_MODULE_ALIAS_GELIC "ps3:3"
+-#define PS3_MODULE_ALIAS_AV_SETTINGS "ps3:4"
+-#define PS3_MODULE_ALIAS_SYSTEM_MANAGER "ps3:5"
+-#define PS3_MODULE_ALIAS_STOR_DISK "ps3:6"
+-#define PS3_MODULE_ALIAS_STOR_ROM "ps3:7"
+-#define PS3_MODULE_ALIAS_STOR_FLASH "ps3:8"
+-#define PS3_MODULE_ALIAS_SOUND "ps3:9"
+-#define PS3_MODULE_ALIAS_GRAPHICS "ps3:10"
+-#define PS3_MODULE_ALIAS_LPM "ps3:11"
++enum ps3_match_sub_id {
++ PS3_MATCH_SUB_ID_GPU_FB = 1,
++};
++
++#define PS3_MODULE_ALIAS_EHCI "ps3:1:0"
++#define PS3_MODULE_ALIAS_OHCI "ps3:2:0"
++#define PS3_MODULE_ALIAS_GELIC "ps3:3:0"
++#define PS3_MODULE_ALIAS_AV_SETTINGS "ps3:4:0"
++#define PS3_MODULE_ALIAS_SYSTEM_MANAGER "ps3:5:0"
++#define PS3_MODULE_ALIAS_STOR_DISK "ps3:6:0"
++#define PS3_MODULE_ALIAS_STOR_ROM "ps3:7:0"
++#define PS3_MODULE_ALIAS_STOR_FLASH "ps3:8:0"
++#define PS3_MODULE_ALIAS_SOUND "ps3:9:0"
++#define PS3_MODULE_ALIAS_GPU_FB "ps3:10:1"
++#define PS3_MODULE_ALIAS_LPM "ps3:11:0"
+
+ enum ps3_system_bus_device_type {
+ PS3_DEVICE_TYPE_IOC0 = 1,
+@@ -337,11 +341,6 @@ enum ps3_system_bus_device_type {
+ PS3_DEVICE_TYPE_LPM,
+ };
+
+-enum ps3_match_sub_id {
+- /* for PS3_MATCH_ID_GRAPHICS */
+- PS3_MATCH_SUB_ID_FB = 1,
+-};
+-
+ /**
+ * struct ps3_system_bus_device - a device on the system bus
+ */
+diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c
+index 43816da..dbc124e 100644
+--- a/arch/powerpc/platforms/ps3/device-init.c
++++ b/arch/powerpc/platforms/ps3/device-init.c
+@@ -497,8 +497,8 @@ static int __init ps3_register_graphics_devices(void)
+ if (!p)
+ return -ENOMEM;
+
+- p->dev.match_id = PS3_MATCH_ID_GRAPHICS;
+- p->dev.match_sub_id = PS3_MATCH_SUB_ID_FB;
++ p->dev.match_id = PS3_MATCH_ID_GPU;
++ p->dev.match_sub_id = PS3_MATCH_SUB_ID_GPU_FB;
+ p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
+
+ result = ps3_system_bus_device_register(&p->dev);
+diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
+index 661e9f7..d3da1e6 100644
+--- a/arch/powerpc/platforms/ps3/system-bus.c
++++ b/arch/powerpc/platforms/ps3/system-bus.c
+@@ -175,7 +175,7 @@ int ps3_open_hv_device(struct ps3_system_bus_device *dev)
+ return ps3_open_hv_device_sb(dev);
+
+ case PS3_MATCH_ID_SOUND:
+- case PS3_MATCH_ID_GRAPHICS:
++ case PS3_MATCH_ID_GPU:
+ return ps3_open_hv_device_gpu(dev);
+
+ case PS3_MATCH_ID_AV_SETTINGS:
+@@ -213,7 +213,7 @@ int ps3_close_hv_device(struct ps3_system_bus_device *dev)
+ return ps3_close_hv_device_sb(dev);
+
+ case PS3_MATCH_ID_SOUND:
+- case PS3_MATCH_ID_GRAPHICS:
++ case PS3_MATCH_ID_GPU:
+ return ps3_close_hv_device_gpu(dev);
+
+ case PS3_MATCH_ID_AV_SETTINGS:
+@@ -453,7 +453,8 @@ static int ps3_system_bus_uevent(struct device *_dev, struct kobj_uevent_env *en
+ {
+ struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
+
+- if (add_uevent_var(env, "MODALIAS=ps3:%d", dev->match_id))
++ if (add_uevent_var(env, "MODALIAS=ps3:%d:%d", dev->match_id,
++ dev->match_sub_id))
+ return -ENOMEM;
+ return 0;
+ }
+@@ -462,7 +463,8 @@ static ssize_t modalias_show(struct device *_dev, struct device_attribute *a,
+ char *buf)
+ {
+ struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
+- int len = snprintf(buf, PAGE_SIZE, "ps3:%d\n", dev->match_id);
++ int len = snprintf(buf, PAGE_SIZE, "ps3:%d:%d\n", dev->match_id,
++ dev->match_sub_id);
+
+ return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
+ }
+diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
+index bd3e39b..38ac805 100644
+--- a/drivers/video/ps3fb.c
++++ b/drivers/video/ps3fb.c
+@@ -1289,8 +1289,8 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
+ }
+
+ static struct ps3_system_bus_driver ps3fb_driver = {
+- .match_id = PS3_MATCH_ID_GRAPHICS,
+- .match_sub_id = PS3_MATCH_SUB_ID_FB,
++ .match_id = PS3_MATCH_ID_GPU,
++ .match_sub_id = PS3_MATCH_SUB_ID_GPU_FB,
+ .core.name = DEVICE_NAME,
+ .core.owner = THIS_MODULE,
+ .probe = ps3fb_probe,
+@@ -1348,4 +1348,4 @@ module_exit(ps3fb_exit);
+ MODULE_LICENSE("GPL");
+ MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
+ MODULE_AUTHOR("Sony Computer Entertainment Inc.");
+-MODULE_ALIAS(PS3_MODULE_ALIAS_GRAPHICS);
++MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);
+--
+1.6.0.4
+
+++ /dev/null
-From cffb4add03b1fc83026b06dc3664279cfbf70155 Mon Sep 17 00:00:00 2001
-From: Jim Paris <jim@jtan.com>
-Date: Tue, 6 Jan 2009 11:32:10 +0000
-Subject: [PATCH] mtd/ps3vram: Add ps3vram driver for accessing video RAM as MTD
-
-Add ps3vram driver, which exposes unused video RAM on the PS3 as a MTD
-device suitable for storage or swap. Fast data transfer is achieved
-using a local cache in system RAM and DMA transfers via the GPU.
-
-Signed-off-by: Vivien Chappelier <vivien.chappelier@free.fr>
-Signed-off-by: Jim Paris <jim@jtan.com>
-Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
-Acked-by: David Woodhouse <David.Woodhouse@intel.com>
-Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
----
- arch/powerpc/include/asm/ps3.h | 1 +
-
-diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
-index cff30c0..66b6505 100644
---- a/arch/powerpc/include/asm/ps3.h
-+++ b/arch/powerpc/include/asm/ps3.h
-@@ -320,6 +320,7 @@ enum ps3_match_id {
-
- enum ps3_match_sub_id {
- PS3_MATCH_SUB_ID_GPU_FB = 1,
-+ PS3_MATCH_SUB_ID_GPU_RAMDISK = 2,
- };
-
- #define PS3_MODULE_ALIAS_EHCI "ps3:1:0"
--- /dev/null
+From aab0d375e01d8c16e7e5b9bd915dfaa0a815418f Mon Sep 17 00:00:00 2001
+From: Kay Sievers <kay.sievers@vrfy.org>
+Date: Thu, 4 Dec 2008 10:02:56 -0800
+Subject: [PATCH] powerpc: struct device - replace bus_id with dev_name(), dev_set_name()
+
+Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
+Signed-off-by: Paul Mackerras <paulus@samba.org>
+---
+ arch/powerpc/kernel/ibmebus.c | 2 +-
+ arch/powerpc/kernel/of_device.c | 18 +++++++-----------
+ arch/powerpc/kernel/vio.c | 12 ++++++------
+ arch/powerpc/platforms/85xx/mpc85xx_mds.c | 6 +++---
+ arch/powerpc/platforms/ps3/system-bus.c | 28 ++++++++++++----------------
+ 5 files changed, 29 insertions(+), 37 deletions(-)
+
+diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
+index 7c65377..6e3f624 100644
+--- a/arch/powerpc/kernel/ibmebus.c
++++ b/arch/powerpc/kernel/ibmebus.c
+@@ -47,7 +47,7 @@
+ #include <asm/abs_addr.h>
+
+ static struct device ibmebus_bus_device = { /* fake "parent" device */
+- .bus_id = "ibmebus",
++ .init_name = "ibmebus",
+ };
+
+ struct bus_type ibmebus_bus_type;
+diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c
+index f3c9cae..fa983a5 100644
+--- a/arch/powerpc/kernel/of_device.c
++++ b/arch/powerpc/kernel/of_device.c
+@@ -14,7 +14,6 @@ static void of_device_make_bus_id(struct of_device *dev)
+ {
+ static atomic_t bus_no_reg_magic;
+ struct device_node *node = dev->node;
+- char *name = dev->dev.bus_id;
+ const u32 *reg;
+ u64 addr;
+ int magic;
+@@ -27,14 +26,12 @@ static void of_device_make_bus_id(struct of_device *dev)
+ reg = of_get_property(node, "dcr-reg", NULL);
+ if (reg) {
+ #ifdef CONFIG_PPC_DCR_NATIVE
+- snprintf(name, BUS_ID_SIZE, "d%x.%s",
+- *reg, node->name);
++ dev_set_name(&dev->dev, "d%x.%s", *reg, node->name);
+ #else /* CONFIG_PPC_DCR_NATIVE */
+ addr = of_translate_dcr_address(node, *reg, NULL);
+ if (addr != OF_BAD_ADDR) {
+- snprintf(name, BUS_ID_SIZE,
+- "D%llx.%s", (unsigned long long)addr,
+- node->name);
++ dev_set_name(&dev->dev, "D%llx.%s",
++ (unsigned long long)addr, node->name);
+ return;
+ }
+ #endif /* !CONFIG_PPC_DCR_NATIVE */
+@@ -48,9 +45,8 @@ static void of_device_make_bus_id(struct of_device *dev)
+ if (reg) {
+ addr = of_translate_address(node, reg);
+ if (addr != OF_BAD_ADDR) {
+- snprintf(name, BUS_ID_SIZE,
+- "%llx.%s", (unsigned long long)addr,
+- node->name);
++ dev_set_name(&dev->dev, "%llx.%s",
++ (unsigned long long)addr, node->name);
+ return;
+ }
+ }
+@@ -60,7 +56,7 @@ static void of_device_make_bus_id(struct of_device *dev)
+ * counter (and pray...)
+ */
+ magic = atomic_add_return(1, &bus_no_reg_magic);
+- snprintf(name, BUS_ID_SIZE, "%s.%d", node->name, magic - 1);
++ dev_set_name(&dev->dev, "%s.%d", node->name, magic - 1);
+ }
+
+ struct of_device *of_device_alloc(struct device_node *np,
+@@ -80,7 +76,7 @@ struct of_device *of_device_alloc(struct device_node *np,
+ dev->dev.archdata.of_node = np;
+
+ if (bus_id)
+- strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);
++ dev_set_name(&dev->dev, bus_id);
+ else
+ of_device_make_bus_id(dev);
+
+diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
+index a11e6bc..94aa7b0 100644
+--- a/arch/powerpc/kernel/vio.c
++++ b/arch/powerpc/kernel/vio.c
+@@ -41,9 +41,9 @@
+ static struct bus_type vio_bus_type;
+
+ static struct vio_dev vio_bus_device = { /* fake "parent" device */
+- .name = vio_bus_device.dev.bus_id,
++ .name = "vio",
+ .type = "",
+- .dev.bus_id = "vio",
++ .dev.init_name = "vio",
+ .dev.bus = &vio_bus_type,
+ };
+
+@@ -1216,7 +1216,7 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
+
+ viodev->irq = irq_of_parse_and_map(of_node, 0);
+
+- snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%x", *unit_address);
++ dev_set_name(&viodev->dev, "%x", *unit_address);
+ viodev->name = of_node->name;
+ viodev->type = of_node->type;
+ viodev->unit_address = *unit_address;
+@@ -1243,7 +1243,7 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
+ /* register with generic device framework */
+ if (device_register(&viodev->dev)) {
+ printk(KERN_ERR "%s: failed to register device %s\n",
+- __func__, viodev->dev.bus_id);
++ __func__, dev_name(&viodev->dev));
+ /* XXX free TCE table */
+ kfree(viodev);
+ return NULL;
+@@ -1400,13 +1400,13 @@ static struct vio_dev *vio_find_name(const char *name)
+ struct vio_dev *vio_find_node(struct device_node *vnode)
+ {
+ const uint32_t *unit_address;
+- char kobj_name[BUS_ID_SIZE];
++ char kobj_name[20];
+
+ /* construct the kobject name from the device node */
+ unit_address = of_get_property(vnode, "reg", NULL);
+ if (!unit_address)
+ return NULL;
+- snprintf(kobj_name, BUS_ID_SIZE, "%x", *unit_address);
++ snprintf(kobj_name, sizeof(kobj_name), "%x", *unit_address);
+
+ return vio_find_name(kobj_name);
+ }
+diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
+index d3da1e6..ee0d229 100644
+--- a/arch/powerpc/platforms/ps3/system-bus.c
++++ b/arch/powerpc/platforms/ps3/system-bus.c
+@@ -31,7 +31,7 @@
+ #include "platform.h"
+
+ static struct device ps3_system_bus = {
+- .bus_id = "ps3_system",
++ .init_name = "ps3_system",
+ };
+
+ /* FIXME: need device usage counters! */
+@@ -356,12 +356,12 @@ static int ps3_system_bus_match(struct device *_dev,
+ if (result)
+ pr_info("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): match\n",
+ __func__, __LINE__,
+- dev->match_id, dev->match_sub_id, dev->core.bus_id,
++ dev->match_id, dev->match_sub_id, dev_name(&dev->core),
+ drv->match_id, drv->match_sub_id, drv->core.name);
+ else
+ pr_debug("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): miss\n",
+ __func__, __LINE__,
+- dev->match_id, dev->match_sub_id, dev->core.bus_id,
++ dev->match_id, dev->match_sub_id, dev_name(&dev->core),
+ drv->match_id, drv->match_sub_id, drv->core.name);
+
+ return result;
+@@ -383,9 +383,9 @@ static int ps3_system_bus_probe(struct device *_dev)
+ result = drv->probe(dev);
+ else
+ pr_debug("%s:%d: %s no probe method\n", __func__, __LINE__,
+- dev->core.bus_id);
++ dev_name(&dev->core));
+
+- pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev->core.bus_id);
++ pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev_name(&dev->core));
+ return result;
+ }
+
+@@ -407,7 +407,7 @@ static int ps3_system_bus_remove(struct device *_dev)
+ dev_dbg(&dev->core, "%s:%d %s: no remove method\n",
+ __func__, __LINE__, drv->core.name);
+
+- pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev->core.bus_id);
++ pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev_name(&dev->core));
+ return result;
+ }
+
+@@ -432,7 +432,7 @@ static void ps3_system_bus_shutdown(struct device *_dev)
+ BUG_ON(!drv);
+
+ dev_dbg(&dev->core, "%s:%d: %s -> %s\n", __func__, __LINE__,
+- dev->core.bus_id, drv->core.name);
++ dev_name(&dev->core), drv->core.name);
+
+ if (drv->shutdown)
+ drv->shutdown(dev);
+@@ -744,22 +744,18 @@ int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
+ switch (dev->dev_type) {
+ case PS3_DEVICE_TYPE_IOC0:
+ dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops;
+- snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
+- "ioc0_%02x", ++dev_ioc0_count);
++ dev_set_name(&dev->core, "ioc0_%02x", ++dev_ioc0_count);
+ break;
+ case PS3_DEVICE_TYPE_SB:
+ dev->core.archdata.dma_ops = &ps3_sb_dma_ops;
+- snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
+- "sb_%02x", ++dev_sb_count);
++ dev_set_name(&dev->core, "sb_%02x", ++dev_sb_count);
+
+ break;
+ case PS3_DEVICE_TYPE_VUART:
+- snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
+- "vuart_%02x", ++dev_vuart_count);
++ dev_set_name(&dev->core, "vuart_%02x", ++dev_vuart_count);
+ break;
+ case PS3_DEVICE_TYPE_LPM:
+- snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
+- "lpm_%02x", ++dev_lpm_count);
++ dev_set_name(&dev->core, "lpm_%02x", ++dev_lpm_count);
+ break;
+ default:
+ BUG();
+@@ -768,7 +764,7 @@ int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
+ dev->core.archdata.of_node = NULL;
+ set_dev_node(&dev->core, 0);
+
+- pr_debug("%s:%d add %s\n", __func__, __LINE__, dev->core.bus_id);
++ pr_debug("%s:%d add %s\n", __func__, __LINE__, dev_name(&dev->core));
+
+ result = device_register(&dev->core);
+ return result;
+--
+1.6.0.4
+
+++ /dev/null
-From 0a2d15b928e0b1673d4ed5f48d95af211b6fcc06 Mon Sep 17 00:00:00 2001
-From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
-Date: Tue, 6 Jan 2009 11:32:03 +0000
-Subject: [PATCH] mtd/ps3vram: Add modalias support to the ps3vram driver
-
-Update ps3vram driver to use the new ps3 three id modalias support.
-
-Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
-Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
-Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
----
- arch/powerpc/include/asm/ps3.h | 1 +
-
-diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
-index 66b6505..eead5c6 100644
---- a/arch/powerpc/include/asm/ps3.h
-+++ b/arch/powerpc/include/asm/ps3.h
-@@ -333,6 +333,7 @@ enum ps3_match_sub_id {
- #define PS3_MODULE_ALIAS_STOR_FLASH "ps3:8:0"
- #define PS3_MODULE_ALIAS_SOUND "ps3:9:0"
- #define PS3_MODULE_ALIAS_GPU_FB "ps3:10:1"
-+#define PS3_MODULE_ALIAS_GPU_RAMDISK "ps3:10:2"
- #define PS3_MODULE_ALIAS_LPM "ps3:11:0"
-
- enum ps3_system_bus_device_type {
--- /dev/null
+From 5be8554875bf3a1a42b7f04d5999b36e7c2fa88b Mon Sep 17 00:00:00 2001
+From: Anton Vorontsov <avorontsov@ru.mvista.com>
+Date: Tue, 16 Dec 2008 06:23:08 +0000
+Subject: [PATCH] powerpc: Remove default kexec/crash_kernel ops assignments
+
+Default ops are implicit now.
+
+Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
+Signed-off-by: Paul Mackerras <paulus@samba.org>
+---
+ arch/powerpc/platforms/cell/celleb_setup.c | 9 ---------
+ arch/powerpc/platforms/cell/setup.c | 6 ------
+ arch/powerpc/platforms/embedded6xx/c2k.c | 6 ------
+ arch/powerpc/platforms/embedded6xx/prpmc2800.c | 6 ------
+ arch/powerpc/platforms/maple/setup.c | 6 ------
+ arch/powerpc/platforms/powermac/setup.c | 6 ------
+ arch/powerpc/platforms/ps3/setup.c | 4 ----
+ 7 files changed, 0 insertions(+), 43 deletions(-)
+
+diff --git a/arch/powerpc/platforms/cell/celleb_setup.c b/arch/powerpc/platforms/cell/celleb_setup.c
+index b11cb30..07c234f 100644
+--- a/arch/powerpc/platforms/cell/celleb_setup.c
++++ b/arch/powerpc/platforms/cell/celleb_setup.c
+@@ -45,7 +45,6 @@
+ #include <asm/mmu.h>
+ #include <asm/processor.h>
+ #include <asm/io.h>
+-#include <asm/kexec.h>
+ #include <asm/prom.h>
+ #include <asm/machdep.h>
+ #include <asm/cputable.h>
+@@ -226,9 +225,6 @@ define_machine(celleb_beat) {
+ .pci_setup_phb = celleb_setup_phb,
+ #ifdef CONFIG_KEXEC
+ .kexec_cpu_down = beat_kexec_cpu_down,
+- .machine_kexec = default_machine_kexec,
+- .machine_kexec_prepare = default_machine_kexec_prepare,
+- .machine_crash_shutdown = default_machine_crash_shutdown,
+ #endif
+ };
+
+@@ -248,9 +244,4 @@ define_machine(celleb_native) {
+ .pci_probe_mode = celleb_pci_probe_mode,
+ .pci_setup_phb = celleb_setup_phb,
+ .init_IRQ = celleb_init_IRQ_native,
+-#ifdef CONFIG_KEXEC
+- .machine_kexec = default_machine_kexec,
+- .machine_kexec_prepare = default_machine_kexec_prepare,
+- .machine_crash_shutdown = default_machine_crash_shutdown,
+-#endif
+ };
+diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
+index ab721b5..5930536 100644
+--- a/arch/powerpc/platforms/cell/setup.c
++++ b/arch/powerpc/platforms/cell/setup.c
+@@ -35,7 +35,6 @@
+ #include <asm/mmu.h>
+ #include <asm/processor.h>
+ #include <asm/io.h>
+-#include <asm/kexec.h>
+ #include <asm/pgtable.h>
+ #include <asm/prom.h>
+ #include <asm/rtas.h>
+@@ -289,9 +288,4 @@ define_machine(cell) {
+ .progress = cell_progress,
+ .init_IRQ = cell_init_irq,
+ .pci_setup_phb = cell_setup_phb,
+-#ifdef CONFIG_KEXEC
+- .machine_kexec = default_machine_kexec,
+- .machine_kexec_prepare = default_machine_kexec_prepare,
+- .machine_crash_shutdown = default_machine_crash_shutdown,
+-#endif
+ };
+diff --git a/arch/powerpc/platforms/embedded6xx/c2k.c b/arch/powerpc/platforms/embedded6xx/c2k.c
+index 32ba0fa..8cab573 100644
+--- a/arch/powerpc/platforms/embedded6xx/c2k.c
++++ b/arch/powerpc/platforms/embedded6xx/c2k.c
+@@ -20,7 +20,6 @@
+ #include <linux/seq_file.h>
+ #include <linux/time.h>
+ #include <linux/of.h>
+-#include <linux/kexec.h>
+
+ #include <asm/machdep.h>
+ #include <asm/prom.h>
+@@ -147,9 +146,4 @@ define_machine(c2k) {
+ .get_irq = mv64x60_get_irq,
+ .restart = c2k_restart,
+ .calibrate_decr = generic_calibrate_decr,
+-#ifdef CONFIG_KEXEC
+- .machine_kexec = default_machine_kexec,
+- .machine_kexec_prepare = default_machine_kexec_prepare,
+- .machine_crash_shutdown = default_machine_crash_shutdown,
+-#endif
+ };
+diff --git a/arch/powerpc/platforms/embedded6xx/prpmc2800.c b/arch/powerpc/platforms/embedded6xx/prpmc2800.c
+index 4c485e9..670035f 100644
+--- a/arch/powerpc/platforms/embedded6xx/prpmc2800.c
++++ b/arch/powerpc/platforms/embedded6xx/prpmc2800.c
+@@ -19,7 +19,6 @@
+ #include <asm/prom.h>
+ #include <asm/system.h>
+ #include <asm/time.h>
+-#include <asm/kexec.h>
+
+ #include <mm/mmu_decl.h>
+
+@@ -155,9 +154,4 @@ define_machine(prpmc2800){
+ .get_irq = mv64x60_get_irq,
+ .restart = prpmc2800_restart,
+ .calibrate_decr = generic_calibrate_decr,
+-#ifdef CONFIG_KEXEC
+- .machine_kexec = default_machine_kexec,
+- .machine_kexec_prepare = default_machine_kexec_prepare,
+- .machine_crash_shutdown = default_machine_crash_shutdown,
+-#endif
+ };
+diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
+index d4c61c3..bfd60e4 100644
+--- a/arch/powerpc/platforms/maple/setup.c
++++ b/arch/powerpc/platforms/maple/setup.c
+@@ -50,7 +50,6 @@
+ #include <asm/system.h>
+ #include <asm/pgtable.h>
+ #include <asm/io.h>
+-#include <asm/kexec.h>
+ #include <asm/pci-bridge.h>
+ #include <asm/iommu.h>
+ #include <asm/machdep.h>
+@@ -335,9 +334,4 @@ define_machine(maple) {
+ .calibrate_decr = generic_calibrate_decr,
+ .progress = maple_progress,
+ .power_save = power4_idle,
+-#ifdef CONFIG_KEXEC
+- .machine_kexec = default_machine_kexec,
+- .machine_kexec_prepare = default_machine_kexec_prepare,
+- .machine_crash_shutdown = default_machine_crash_shutdown,
+-#endif
+ };
+diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
+index 1293772..9b78f53 100644
+--- a/arch/powerpc/platforms/powermac/setup.c
++++ b/arch/powerpc/platforms/powermac/setup.c
+@@ -60,7 +60,6 @@
+ #include <asm/system.h>
+ #include <asm/pgtable.h>
+ #include <asm/io.h>
+-#include <asm/kexec.h>
+ #include <asm/pci-bridge.h>
+ #include <asm/ohare.h>
+ #include <asm/mediabay.h>
+@@ -738,11 +737,6 @@ define_machine(powermac) {
+ .pci_probe_mode = pmac_pci_probe_mode,
+ .power_save = power4_idle,
+ .enable_pmcs = power4_enable_pmcs,
+-#ifdef CONFIG_KEXEC
+- .machine_kexec = default_machine_kexec,
+- .machine_kexec_prepare = default_machine_kexec_prepare,
+- .machine_crash_shutdown = default_machine_crash_shutdown,
+-#endif
+ #endif /* CONFIG_PPC64 */
+ #ifdef CONFIG_PPC32
+ .pcibios_enable_device_hook = pmac_pci_enable_device_hook,
+diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
+index bfc33fb..35f3e85 100644
+--- a/arch/powerpc/platforms/ps3/setup.c
++++ b/arch/powerpc/platforms/ps3/setup.c
+@@ -23,7 +23,6 @@
+ #include <linux/fs.h>
+ #include <linux/root_dev.h>
+ #include <linux/console.h>
+-#include <linux/kexec.h>
+ #include <linux/bootmem.h>
+
+ #include <asm/machdep.h>
+@@ -281,8 +280,5 @@ define_machine(ps3) {
+ .halt = ps3_halt,
+ #if defined(CONFIG_KEXEC)
+ .kexec_cpu_down = ps3_kexec_cpu_down,
+- .machine_kexec = default_machine_kexec,
+- .machine_kexec_prepare = default_machine_kexec_prepare,
+- .machine_crash_shutdown = default_machine_crash_shutdown,
+ #endif
+ };
+--
+1.6.0.4
+
--- /dev/null
+From cffb4add03b1fc83026b06dc3664279cfbf70155 Mon Sep 17 00:00:00 2001
+From: Jim Paris <jim@jtan.com>
+Date: Tue, 6 Jan 2009 11:32:10 +0000
+Subject: [PATCH] mtd/ps3vram: Add ps3vram driver for accessing video RAM as MTD
+
+Add ps3vram driver, which exposes unused video RAM on the PS3 as a MTD
+device suitable for storage or swap. Fast data transfer is achieved
+using a local cache in system RAM and DMA transfers via the GPU.
+
+Signed-off-by: Vivien Chappelier <vivien.chappelier@free.fr>
+Signed-off-by: Jim Paris <jim@jtan.com>
+Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Acked-by: David Woodhouse <David.Woodhouse@intel.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+---
+ MAINTAINERS | 6 +
+ arch/powerpc/include/asm/ps3.h | 1 +
+ arch/powerpc/platforms/ps3/device-init.c | 37 ++
+ drivers/mtd/devices/Kconfig | 7 +
+ drivers/mtd/devices/Makefile | 1 +
+ drivers/mtd/devices/ps3vram.c | 776 ++++++++++++++++++++++++++++++
+ 6 files changed, 828 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/mtd/devices/ps3vram.c
+
+diff --git a/MAINTAINERS b/MAINTAINERS
+index a018844..246878f 100644
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -3484,6 +3484,12 @@ L: linuxppc-dev@ozlabs.org
+ L: cbe-oss-dev@ozlabs.org
+ S: Supported
+
++PS3VRAM DRIVER
++P: Jim Paris
++M: jim@jtan.com
++L: cbe-oss-dev@ozlabs.org
++S: Maintained
++
+ PVRUSB2 VIDEO4LINUX DRIVER
+ P: Mike Isely
+ M: isely@pobox.com
+diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
+index cff30c0..66b6505 100644
+--- a/arch/powerpc/include/asm/ps3.h
++++ b/arch/powerpc/include/asm/ps3.h
+@@ -320,6 +320,7 @@ enum ps3_match_id {
+
+ enum ps3_match_sub_id {
+ PS3_MATCH_SUB_ID_GPU_FB = 1,
++ PS3_MATCH_SUB_ID_GPU_RAMDISK = 2,
+ };
+
+ #define PS3_MODULE_ALIAS_EHCI "ps3:1:0"
+diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c
+index dbc124e..ca71a12 100644
+--- a/arch/powerpc/platforms/ps3/device-init.c
++++ b/arch/powerpc/platforms/ps3/device-init.c
+@@ -518,6 +518,41 @@ fail_device_register:
+ return result;
+ }
+
++static int __init ps3_register_ramdisk_device(void)
++{
++ int result;
++ struct layout {
++ struct ps3_system_bus_device dev;
++ } *p;
++
++ pr_debug(" -> %s:%d\n", __func__, __LINE__);
++
++ p = kzalloc(sizeof(struct layout), GFP_KERNEL);
++
++ if (!p)
++ return -ENOMEM;
++
++ p->dev.match_id = PS3_MATCH_ID_GPU;
++ p->dev.match_sub_id = PS3_MATCH_SUB_ID_GPU_RAMDISK;
++ p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
++
++ result = ps3_system_bus_device_register(&p->dev);
++
++ if (result) {
++ pr_debug("%s:%d ps3_system_bus_device_register failed\n",
++ __func__, __LINE__);
++ goto fail_device_register;
++ }
++
++ pr_debug(" <- %s:%d\n", __func__, __LINE__);
++ return 0;
++
++fail_device_register:
++ kfree(p);
++ pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
++ return result;
++}
++
+ /**
+ * ps3_setup_dynamic_device - Setup a dynamic device from the repository
+ */
+@@ -946,6 +981,8 @@ static int __init ps3_register_devices(void)
+
+ ps3_register_lpm_devices();
+
++ ps3_register_ramdisk_device();
++
+ pr_debug(" <- %s:%d\n", __func__, __LINE__);
+ return 0;
+ }
+diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
+index 6fde0a2..bc33200 100644
+--- a/drivers/mtd/devices/Kconfig
++++ b/drivers/mtd/devices/Kconfig
+@@ -120,6 +120,13 @@ config MTD_PHRAM
+ doesn't have access to, memory beyond the mem=xxx limit, nvram,
+ memory on the video card, etc...
+
++config MTD_PS3VRAM
++ tristate "PS3 video RAM"
++ depends on FB_PS3
++ help
++ This driver allows you to use excess PS3 video RAM as volatile
++ storage or system swap.
++
+ config MTD_LART
+ tristate "28F160xx flash driver for LART"
+ depends on SA1100_LART
+diff --git a/drivers/mtd/devices/Makefile b/drivers/mtd/devices/Makefile
+index 0993d5c..e51521d 100644
+--- a/drivers/mtd/devices/Makefile
++++ b/drivers/mtd/devices/Makefile
+@@ -16,3 +16,4 @@ obj-$(CONFIG_MTD_LART) += lart.o
+ obj-$(CONFIG_MTD_BLOCK2MTD) += block2mtd.o
+ obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o
+ obj-$(CONFIG_MTD_M25P80) += m25p80.o
++obj-$(CONFIG_MTD_PS3VRAM) += ps3vram.o
+diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c
+new file mode 100644
+index 0000000..26a4b57
+--- /dev/null
++++ b/drivers/mtd/devices/ps3vram.c
+@@ -0,0 +1,776 @@
++/**
++ * ps3vram - Use extra PS3 video ram as MTD block device.
++ *
++ * Copyright (c) 2007-2008 Jim Paris <jim@jtan.com>
++ * Added support RSX DMA Vivien Chappelier <vivien.chappelier@free.fr>
++ */
++
++#include <linux/io.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/list.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/slab.h>
++#include <linux/version.h>
++#include <linux/gfp.h>
++#include <linux/delay.h>
++#include <linux/mtd/mtd.h>
++
++#include <asm/lv1call.h>
++#include <asm/ps3.h>
++
++#define DEVICE_NAME "ps3vram"
++
++#define XDR_BUF_SIZE (2 * 1024 * 1024) /* XDR buffer (must be 1MiB aligned) */
++#define XDR_IOIF 0x0c000000
++
++#define FIFO_BASE XDR_IOIF
++#define FIFO_SIZE (64 * 1024)
++
++#define DMA_PAGE_SIZE (4 * 1024)
++
++#define CACHE_PAGE_SIZE (256 * 1024)
++#define CACHE_PAGE_COUNT ((XDR_BUF_SIZE - FIFO_SIZE) / CACHE_PAGE_SIZE)
++
++#define CACHE_OFFSET CACHE_PAGE_SIZE
++#define FIFO_OFFSET 0
++
++#define CTRL_PUT 0x10
++#define CTRL_GET 0x11
++#define CTRL_TOP 0x15
++
++#define UPLOAD_SUBCH 1
++#define DOWNLOAD_SUBCH 2
++
++#define NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN 0x0000030c
++#define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY 0x00000104
++
++#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601
++
++struct mtd_info ps3vram_mtd;
++
++#define CACHE_PAGE_PRESENT 1
++#define CACHE_PAGE_DIRTY 2
++
++#define dbg(fmt, args...) \
++ pr_debug("%s:%d " fmt "\n", __func__, __LINE__, ## args)
++
++struct ps3vram_tag {
++ unsigned int address;
++ unsigned int flags;
++};
++
++struct ps3vram_cache {
++ unsigned int page_count;
++ unsigned int page_size;
++ struct ps3vram_tag *tags;
++};
++
++struct ps3vram_priv {
++ uint64_t memory_handle;
++ uint64_t context_handle;
++ uint8_t *base;
++ uint32_t *ctrl;
++ uint32_t *reports;
++ uint8_t *xdr_buf;
++
++ uint32_t *fifo_base;
++ uint32_t *fifo_ptr;
++
++ struct ps3vram_cache cache;
++
++ /* Used to serialize cache/DMA operations */
++ struct mutex lock;
++};
++
++#define DMA_NOTIFIER_HANDLE_BASE 0x66604200 /* first DMA notifier handle */
++#define DMA_NOTIFIER_OFFSET_BASE 0x1000 /* first DMA notifier offset */
++#define DMA_NOTIFIER_SIZE 0x40
++
++#define NUM_NOTIFIERS 16
++
++#define NOTIFIER 7 /* notifier used for completion report */
++
++/* A trailing '-' means to subtract off ps3fb_videomemory.size */
++char *size = "256M-";
++module_param(size, charp, 0);
++MODULE_PARM_DESC(size, "memory size");
++
++static inline uint32_t *ps3vram_get_notifier(uint32_t *reports, int notifier)
++{
++ return (void *) reports +
++ DMA_NOTIFIER_OFFSET_BASE +
++ DMA_NOTIFIER_SIZE * notifier;
++}
++
++static void ps3vram_notifier_reset(struct mtd_info *mtd)
++{
++ int i;
++ struct ps3vram_priv *priv = mtd->priv;
++ uint32_t *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
++ for (i = 0; i < 4; i++)
++ notify[i] = 0xffffffff;
++}
++
++static int ps3vram_notifier_wait(struct mtd_info *mtd, int timeout_ms)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++ uint32_t *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
++
++ timeout_ms *= 1000;
++
++ do {
++ if (notify[3] == 0)
++ return 0;
++
++ if (timeout_ms)
++ udelay(1);
++ } while (timeout_ms--);
++
++ return -1;
++}
++
++static void ps3vram_dump_ring(struct mtd_info *mtd)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++ uint32_t *fifo;
++
++ pr_info("PUT = %08x GET = %08x\n", priv->ctrl[CTRL_PUT],
++ priv->ctrl[CTRL_GET]);
++ for (fifo = priv->fifo_base; fifo < priv->fifo_ptr; fifo++)
++ pr_info("%p: %08x\n", fifo, *fifo);
++}
++
++static void ps3vram_dump_reports(struct mtd_info *mtd)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++ int i;
++
++ for (i = 0; i < NUM_NOTIFIERS; i++) {
++ uint32_t *n = ps3vram_get_notifier(priv->reports, i);
++ pr_info("%p: %08x\n", n, *n);
++ }
++}
++
++static void ps3vram_init_ring(struct mtd_info *mtd)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++
++ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET;
++ priv->ctrl[CTRL_GET] = FIFO_BASE + FIFO_OFFSET;
++}
++
++static int ps3vram_wait_ring(struct mtd_info *mtd, int timeout)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++
++ /* wait until setup commands are processed */
++ timeout *= 1000;
++ while (--timeout) {
++ if (priv->ctrl[CTRL_PUT] == priv->ctrl[CTRL_GET])
++ break;
++ udelay(1);
++ }
++ if (timeout == 0) {
++ pr_err("FIFO timeout (%08x/%08x/%08x)\n", priv->ctrl[CTRL_PUT],
++ priv->ctrl[CTRL_GET], priv->ctrl[CTRL_TOP]);
++ return -ETIMEDOUT;
++ }
++
++ return 0;
++}
++
++static inline void ps3vram_out_ring(struct ps3vram_priv *priv, uint32_t data)
++{
++ *(priv->fifo_ptr)++ = data;
++}
++
++static inline void ps3vram_begin_ring(struct ps3vram_priv *priv, uint32_t chan,
++ uint32_t tag, uint32_t size)
++{
++ ps3vram_out_ring(priv, (size << 18) | (chan << 13) | tag);
++}
++
++static void ps3vram_rewind_ring(struct mtd_info *mtd)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++ u64 status;
++
++ ps3vram_out_ring(priv, 0x20000000 | (FIFO_BASE + FIFO_OFFSET));
++
++ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET;
++
++ /* asking the HV for a blit will kick the fifo */
++ status = lv1_gpu_context_attribute(priv->context_handle,
++ L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
++ 0, 0, 0, 0);
++ if (status)
++ pr_err("ps3vram: lv1_gpu_context_attribute FB_BLIT failed\n");
++
++ priv->fifo_ptr = priv->fifo_base;
++}
++
++static void ps3vram_fire_ring(struct mtd_info *mtd)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++ u64 status;
++
++ mutex_lock(&ps3_gpu_mutex);
++
++ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET +
++ (priv->fifo_ptr - priv->fifo_base) * sizeof(uint32_t);
++
++ /* asking the HV for a blit will kick the fifo */
++ status = lv1_gpu_context_attribute(priv->context_handle,
++ L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
++ 0, 0, 0, 0);
++ if (status)
++ pr_err("ps3vram: lv1_gpu_context_attribute FB_BLIT failed\n");
++
++ if ((priv->fifo_ptr - priv->fifo_base) * sizeof(uint32_t) >
++ FIFO_SIZE - 1024) {
++ dbg("fifo full, rewinding");
++ ps3vram_wait_ring(mtd, 200);
++ ps3vram_rewind_ring(mtd);
++ }
++
++ mutex_unlock(&ps3_gpu_mutex);
++}
++
++static void ps3vram_bind(struct mtd_info *mtd)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++
++ ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0, 1);
++ ps3vram_out_ring(priv, 0x31337303);
++ ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0x180, 3);
++ ps3vram_out_ring(priv, DMA_NOTIFIER_HANDLE_BASE + NOTIFIER);
++ ps3vram_out_ring(priv, 0xfeed0001); /* DMA system RAM instance */
++ ps3vram_out_ring(priv, 0xfeed0000); /* DMA video RAM instance */
++
++ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0, 1);
++ ps3vram_out_ring(priv, 0x3137c0de);
++ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0x180, 3);
++ ps3vram_out_ring(priv, DMA_NOTIFIER_HANDLE_BASE + NOTIFIER);
++ ps3vram_out_ring(priv, 0xfeed0000); /* DMA video RAM instance */
++ ps3vram_out_ring(priv, 0xfeed0001); /* DMA system RAM instance */
++
++ ps3vram_fire_ring(mtd);
++}
++
++static int ps3vram_upload(struct mtd_info *mtd, unsigned int src_offset,
++ unsigned int dst_offset, int len, int count)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++
++ ps3vram_begin_ring(priv, UPLOAD_SUBCH,
++ NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
++ ps3vram_out_ring(priv, XDR_IOIF + src_offset);
++ ps3vram_out_ring(priv, dst_offset);
++ ps3vram_out_ring(priv, len);
++ ps3vram_out_ring(priv, len);
++ ps3vram_out_ring(priv, len);
++ ps3vram_out_ring(priv, count);
++ ps3vram_out_ring(priv, (1 << 8) | 1);
++ ps3vram_out_ring(priv, 0);
++
++ ps3vram_notifier_reset(mtd);
++ ps3vram_begin_ring(priv, UPLOAD_SUBCH,
++ NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY, 1);
++ ps3vram_out_ring(priv, 0);
++ ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0x100, 1);
++ ps3vram_out_ring(priv, 0);
++ ps3vram_fire_ring(mtd);
++ if (ps3vram_notifier_wait(mtd, 200) < 0) {
++ pr_err("notifier timeout\n");
++ ps3vram_dump_ring(mtd);
++ ps3vram_dump_reports(mtd);
++ return -1;
++ }
++
++ return 0;
++}
++
++static int ps3vram_download(struct mtd_info *mtd, unsigned int src_offset,
++ unsigned int dst_offset, int len, int count)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++
++ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH,
++ NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
++ ps3vram_out_ring(priv, src_offset);
++ ps3vram_out_ring(priv, XDR_IOIF + dst_offset);
++ ps3vram_out_ring(priv, len);
++ ps3vram_out_ring(priv, len);
++ ps3vram_out_ring(priv, len);
++ ps3vram_out_ring(priv, count);
++ ps3vram_out_ring(priv, (1 << 8) | 1);
++ ps3vram_out_ring(priv, 0);
++
++ ps3vram_notifier_reset(mtd);
++ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH,
++ NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY, 1);
++ ps3vram_out_ring(priv, 0);
++ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0x100, 1);
++ ps3vram_out_ring(priv, 0);
++ ps3vram_fire_ring(mtd);
++ if (ps3vram_notifier_wait(mtd, 200) < 0) {
++ pr_err("notifier timeout\n");
++ ps3vram_dump_ring(mtd);
++ ps3vram_dump_reports(mtd);
++ return -1;
++ }
++
++ return 0;
++}
++
++static void ps3vram_cache_evict(struct mtd_info *mtd, int entry)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++ struct ps3vram_cache *cache = &priv->cache;
++
++ if (cache->tags[entry].flags & CACHE_PAGE_DIRTY) {
++ dbg("flushing %d : 0x%08x", entry, cache->tags[entry].address);
++ if (ps3vram_upload(mtd,
++ CACHE_OFFSET + entry * cache->page_size,
++ cache->tags[entry].address,
++ DMA_PAGE_SIZE,
++ cache->page_size / DMA_PAGE_SIZE) < 0) {
++ pr_err("failed to upload from 0x%x to 0x%x size 0x%x\n",
++ entry * cache->page_size,
++ cache->tags[entry].address,
++ cache->page_size);
++ }
++ cache->tags[entry].flags &= ~CACHE_PAGE_DIRTY;
++ }
++}
++
++static void ps3vram_cache_load(struct mtd_info *mtd, int entry,
++ unsigned int address)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++ struct ps3vram_cache *cache = &priv->cache;
++
++ dbg("fetching %d : 0x%08x", entry, address);
++ if (ps3vram_download(mtd,
++ address,
++ CACHE_OFFSET + entry * cache->page_size,
++ DMA_PAGE_SIZE,
++ cache->page_size / DMA_PAGE_SIZE) < 0) {
++ pr_err("failed to download from 0x%x to 0x%x size 0x%x\n",
++ address,
++ entry * cache->page_size,
++ cache->page_size);
++ }
++
++ cache->tags[entry].address = address;
++ cache->tags[entry].flags |= CACHE_PAGE_PRESENT;
++}
++
++
++static void ps3vram_cache_flush(struct mtd_info *mtd)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++ struct ps3vram_cache *cache = &priv->cache;
++ int i;
++
++ dbg("FLUSH");
++ for (i = 0; i < cache->page_count; i++) {
++ ps3vram_cache_evict(mtd, i);
++ cache->tags[i].flags = 0;
++ }
++}
++
++static unsigned int ps3vram_cache_match(struct mtd_info *mtd, loff_t address)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++ struct ps3vram_cache *cache = &priv->cache;
++ unsigned int base;
++ unsigned int offset;
++ int i;
++ static int counter;
++
++ offset = (unsigned int) (address & (cache->page_size - 1));
++ base = (unsigned int) (address - offset);
++
++ /* fully associative check */
++ for (i = 0; i < cache->page_count; i++) {
++ if ((cache->tags[i].flags & CACHE_PAGE_PRESENT) &&
++ cache->tags[i].address == base) {
++ dbg("found entry %d : 0x%08x",
++ i, cache->tags[i].address);
++ return i;
++ }
++ }
++
++ /* choose a random entry */
++ i = (jiffies + (counter++)) % cache->page_count;
++ dbg("using cache entry %d", i);
++
++ ps3vram_cache_evict(mtd, i);
++ ps3vram_cache_load(mtd, i, base);
++
++ return i;
++}
++
++static int ps3vram_cache_init(struct mtd_info *mtd)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++
++ pr_info("creating cache: %d entries, %d bytes pages\n",
++ CACHE_PAGE_COUNT, CACHE_PAGE_SIZE);
++
++ priv->cache.page_count = CACHE_PAGE_COUNT;
++ priv->cache.page_size = CACHE_PAGE_SIZE;
++ priv->cache.tags = kzalloc(sizeof(struct ps3vram_tag) *
++ CACHE_PAGE_COUNT, GFP_KERNEL);
++ if (priv->cache.tags == NULL) {
++ pr_err("could not allocate cache tags\n");
++ return -ENOMEM;
++ }
++
++ return 0;
++}
++
++static void ps3vram_cache_cleanup(struct mtd_info *mtd)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++
++ ps3vram_cache_flush(mtd);
++ kfree(priv->cache.tags);
++}
++
++static int ps3vram_erase(struct mtd_info *mtd, struct erase_info *instr)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++
++ if (instr->addr + instr->len > mtd->size)
++ return -EINVAL;
++
++ mutex_lock(&priv->lock);
++
++ ps3vram_cache_flush(mtd);
++
++ /* Set bytes to 0xFF */
++ memset(priv->base + instr->addr, 0xFF, instr->len);
++
++ mutex_unlock(&priv->lock);
++
++ instr->state = MTD_ERASE_DONE;
++ mtd_erase_callback(instr);
++
++ return 0;
++}
++
++
++static int ps3vram_read(struct mtd_info *mtd, loff_t from, size_t len,
++ size_t *retlen, u_char *buf)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++ unsigned int cached, count;
++
++ dbg("from = 0x%08x len = 0x%zx", (unsigned int) from, len);
++
++ if (from >= mtd->size)
++ return -EINVAL;
++
++ if (len > mtd->size - from)
++ len = mtd->size - from;
++
++ /* Copy from vram to buf */
++ count = len;
++ while (count) {
++ unsigned int offset, avail;
++ unsigned int entry;
++
++ offset = (unsigned int) (from & (priv->cache.page_size - 1));
++ avail = priv->cache.page_size - offset;
++
++ mutex_lock(&priv->lock);
++
++ entry = ps3vram_cache_match(mtd, from);
++ cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
++
++ dbg("from=%08x cached=%08x offset=%08x avail=%08x count=%08x",
++ (unsigned)from, cached, offset, avail, count);
++
++ if (avail > count)
++ avail = count;
++ memcpy(buf, priv->xdr_buf + cached, avail);
++
++ mutex_unlock(&priv->lock);
++
++ buf += avail;
++ count -= avail;
++ from += avail;
++ }
++
++ *retlen = len;
++ return 0;
++}
++
++static int ps3vram_write(struct mtd_info *mtd, loff_t to, size_t len,
++ size_t *retlen, const u_char *buf)
++{
++ struct ps3vram_priv *priv = mtd->priv;
++ unsigned int cached, count;
++
++ if (to >= mtd->size)
++ return -EINVAL;
++
++ if (len > mtd->size - to)
++ len = mtd->size - to;
++
++ /* Copy from buf to vram */
++ count = len;
++ while (count) {
++ unsigned int offset, avail;
++ unsigned int entry;
++
++ offset = (unsigned int) (to & (priv->cache.page_size - 1));
++ avail = priv->cache.page_size - offset;
++
++ mutex_lock(&priv->lock);
++
++ entry = ps3vram_cache_match(mtd, to);
++ cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
++
++ dbg("to=%08x cached=%08x offset=%08x avail=%08x count=%08x",
++ (unsigned) to, cached, offset, avail, count);
++
++ if (avail > count)
++ avail = count;
++ memcpy(priv->xdr_buf + cached, buf, avail);
++
++ priv->cache.tags[entry].flags |= CACHE_PAGE_DIRTY;
++
++ mutex_unlock(&priv->lock);
++
++ buf += avail;
++ count -= avail;
++ to += avail;
++ }
++
++ *retlen = len;
++ return 0;
++}
++
++static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv;
++ uint64_t status;
++ uint64_t ddr_lpar, ctrl_lpar, info_lpar, reports_lpar;
++ int64_t ddr_size;
++ uint64_t reports_size;
++ int ret = -ENOMEM;
++ char *rest;
++
++ ret = -EIO;
++ ps3vram_mtd.priv = kzalloc(sizeof(struct ps3vram_priv), GFP_KERNEL);
++ if (!ps3vram_mtd.priv)
++ goto out;
++ priv = ps3vram_mtd.priv;
++
++ mutex_init(&priv->lock);
++
++ /* Allocate XDR buffer (1MiB aligned) */
++ priv->xdr_buf = (uint8_t *) __get_free_pages(GFP_KERNEL,
++ get_order(XDR_BUF_SIZE));
++ if (priv->xdr_buf == NULL) {
++ pr_err("ps3vram: could not allocate XDR buffer\n");
++ ret = -ENOMEM;
++ goto out_free_priv;
++ }
++
++ /* Put FIFO at begginning of XDR buffer */
++ priv->fifo_base = (uint32_t *) (priv->xdr_buf + FIFO_OFFSET);
++ priv->fifo_ptr = priv->fifo_base;
++
++ /* XXX: Need to open GPU, in case ps3fb or snd_ps3 aren't loaded */
++ if (ps3_open_hv_device(dev)) {
++ pr_err("ps3vram: ps3_open_hv_device failed\n");
++ ret = -EAGAIN;
++ goto out_close_gpu;
++ }
++
++ /* Request memory */
++ status = -1;
++ ddr_size = memparse(size, &rest);
++ if (*rest == '-')
++ ddr_size -= ps3fb_videomemory.size;
++ ddr_size = ALIGN(ddr_size, 1024*1024);
++ if (ddr_size <= 0) {
++ printk(KERN_ERR "ps3vram: specified size is too small\n");
++ ret = -EINVAL;
++ goto out_close_gpu;
++ }
++
++ while (ddr_size > 0) {
++ status = lv1_gpu_memory_allocate(ddr_size, 0, 0, 0, 0,
++ &priv->memory_handle,
++ &ddr_lpar);
++ if (status == 0)
++ break;
++ ddr_size -= 1024*1024;
++ }
++ if (status != 0 || ddr_size <= 0) {
++ pr_err("ps3vram: lv1_gpu_memory_allocate failed\n");
++ ret = -ENOMEM;
++ goto out_free_xdr_buf;
++ }
++ pr_info("ps3vram: allocated %u MiB of DDR memory\n",
++ (unsigned int) (ddr_size / 1024 / 1024));
++
++ /* Request context */
++ status = lv1_gpu_context_allocate(priv->memory_handle,
++ 0,
++ &priv->context_handle,
++ &ctrl_lpar,
++ &info_lpar,
++ &reports_lpar,
++ &reports_size);
++ if (status) {
++ pr_err("ps3vram: lv1_gpu_context_allocate failed\n");
++ ret = -ENOMEM;
++ goto out_free_memory;
++ }
++
++ /* Map XDR buffer to RSX */
++ status = lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF,
++ ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)),
++ XDR_BUF_SIZE, 0);
++ if (status) {
++ pr_err("ps3vram: lv1_gpu_context_iomap failed\n");
++ ret = -ENOMEM;
++ goto out_free_context;
++ }
++
++ priv->base = ioremap(ddr_lpar, ddr_size);
++ if (!priv->base) {
++ pr_err("ps3vram: ioremap failed\n");
++ ret = -ENOMEM;
++ goto out_free_context;
++ }
++
++ priv->ctrl = ioremap(ctrl_lpar, 64 * 1024);
++ if (!priv->ctrl) {
++ pr_err("ps3vram: ioremap failed\n");
++ ret = -ENOMEM;
++ goto out_unmap_vram;
++ }
++
++ priv->reports = ioremap(reports_lpar, reports_size);
++ if (!priv->reports) {
++ pr_err("ps3vram: ioremap failed\n");
++ ret = -ENOMEM;
++ goto out_unmap_ctrl;
++ }
++
++ mutex_lock(&ps3_gpu_mutex);
++ ps3vram_init_ring(&ps3vram_mtd);
++ mutex_unlock(&ps3_gpu_mutex);
++
++ ps3vram_mtd.name = "ps3vram";
++ ps3vram_mtd.size = ddr_size;
++ ps3vram_mtd.flags = MTD_CAP_RAM;
++ ps3vram_mtd.erase = ps3vram_erase;
++ ps3vram_mtd.point = NULL;
++ ps3vram_mtd.unpoint = NULL;
++ ps3vram_mtd.read = ps3vram_read;
++ ps3vram_mtd.write = ps3vram_write;
++ ps3vram_mtd.owner = THIS_MODULE;
++ ps3vram_mtd.type = MTD_RAM;
++ ps3vram_mtd.erasesize = CACHE_PAGE_SIZE;
++ ps3vram_mtd.writesize = 1;
++
++ ps3vram_bind(&ps3vram_mtd);
++
++ mutex_lock(&ps3_gpu_mutex);
++ ret = ps3vram_wait_ring(&ps3vram_mtd, 100);
++ mutex_unlock(&ps3_gpu_mutex);
++ if (ret < 0) {
++ pr_err("failed to initialize channels\n");
++ ret = -ETIMEDOUT;
++ goto out_unmap_reports;
++ }
++
++ ps3vram_cache_init(&ps3vram_mtd);
++
++ if (add_mtd_device(&ps3vram_mtd)) {
++ pr_err("ps3vram: failed to register device\n");
++ ret = -EAGAIN;
++ goto out_cache_cleanup;
++ }
++
++ pr_info("ps3vram mtd device registered, %lu bytes\n", ddr_size);
++ return 0;
++
++out_cache_cleanup:
++ ps3vram_cache_cleanup(&ps3vram_mtd);
++out_unmap_reports:
++ iounmap(priv->reports);
++out_unmap_ctrl:
++ iounmap(priv->ctrl);
++out_unmap_vram:
++ iounmap(priv->base);
++out_free_context:
++ lv1_gpu_context_free(priv->context_handle);
++out_free_memory:
++ lv1_gpu_memory_free(priv->memory_handle);
++out_close_gpu:
++ ps3_close_hv_device(dev);
++out_free_xdr_buf:
++ free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE));
++out_free_priv:
++ kfree(ps3vram_mtd.priv);
++ ps3vram_mtd.priv = NULL;
++out:
++ return ret;
++}
++
++static int ps3vram_shutdown(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv;
++
++ priv = ps3vram_mtd.priv;
++
++ del_mtd_device(&ps3vram_mtd);
++ ps3vram_cache_cleanup(&ps3vram_mtd);
++ iounmap(priv->reports);
++ iounmap(priv->ctrl);
++ iounmap(priv->base);
++ lv1_gpu_context_free(priv->context_handle);
++ lv1_gpu_memory_free(priv->memory_handle);
++ ps3_close_hv_device(dev);
++ free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE));
++ kfree(priv);
++ return 0;
++}
++
++static struct ps3_system_bus_driver ps3vram_driver = {
++ .match_id = PS3_MATCH_ID_GPU,
++ .match_sub_id = PS3_MATCH_SUB_ID_GPU_RAMDISK,
++ .core.name = DEVICE_NAME,
++ .core.owner = THIS_MODULE,
++ .probe = ps3vram_probe,
++ .remove = ps3vram_shutdown,
++ .shutdown = ps3vram_shutdown,
++};
++
++static int __init ps3vram_init(void)
++{
++ return ps3_system_bus_driver_register(&ps3vram_driver);
++}
++
++static void __exit ps3vram_exit(void)
++{
++ ps3_system_bus_driver_unregister(&ps3vram_driver);
++}
++
++module_init(ps3vram_init);
++module_exit(ps3vram_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Jim Paris <jim@jtan.com>");
++MODULE_DESCRIPTION("MTD driver for PS3 video RAM");
+--
+1.6.0.4
+
--- /dev/null
+From 0a2d15b928e0b1673d4ed5f48d95af211b6fcc06 Mon Sep 17 00:00:00 2001
+From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
+Date: Tue, 6 Jan 2009 11:32:03 +0000
+Subject: [PATCH] mtd/ps3vram: Add modalias support to the ps3vram driver
+
+Update ps3vram driver to use the new ps3 three id modalias support.
+
+Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
+Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+---
+ arch/powerpc/include/asm/ps3.h | 1 +
+ drivers/mtd/devices/ps3vram.c | 1 +
+ 2 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
+index 66b6505..eead5c6 100644
+--- a/arch/powerpc/include/asm/ps3.h
++++ b/arch/powerpc/include/asm/ps3.h
+@@ -333,6 +333,7 @@ enum ps3_match_sub_id {
+ #define PS3_MODULE_ALIAS_STOR_FLASH "ps3:8:0"
+ #define PS3_MODULE_ALIAS_SOUND "ps3:9:0"
+ #define PS3_MODULE_ALIAS_GPU_FB "ps3:10:1"
++#define PS3_MODULE_ALIAS_GPU_RAMDISK "ps3:10:2"
+ #define PS3_MODULE_ALIAS_LPM "ps3:11:0"
+
+ enum ps3_system_bus_device_type {
+diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c
+index 26a4b57..22f381f 100644
+--- a/drivers/mtd/devices/ps3vram.c
++++ b/drivers/mtd/devices/ps3vram.c
+@@ -774,3 +774,4 @@ module_exit(ps3vram_exit);
+ MODULE_LICENSE("GPL");
+ MODULE_AUTHOR("Jim Paris <jim@jtan.com>");
+ MODULE_DESCRIPTION("MTD driver for PS3 video RAM");
++MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_RAMDISK);
+--
+1.6.0.4
+
--- /dev/null
+From e7dd54cf17714c22665ad74b720f40fb64b3c565 Mon Sep 17 00:00:00 2001
+From: Geoff Levand <geoffrey.levand@am.sony.com>
+Date: Tue, 6 Jan 2009 11:32:15 +0000
+Subject: [PATCH] mtd/ps3vram: Remove ps3vram debug routines
+
+Remove the ps3vram debug routines ps3vram_dump_ring() and
+ps3vram_dump_reports(). These routines are not needed.
+
+Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+---
+ drivers/mtd/devices/ps3vram.c | 29 -----------------------------
+ 1 files changed, 0 insertions(+), 29 deletions(-)
+
+diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c
+index 22f381f..18ca521 100644
+--- a/drivers/mtd/devices/ps3vram.c
++++ b/drivers/mtd/devices/ps3vram.c
+@@ -87,9 +87,6 @@ struct ps3vram_priv {
+ #define DMA_NOTIFIER_HANDLE_BASE 0x66604200 /* first DMA notifier handle */
+ #define DMA_NOTIFIER_OFFSET_BASE 0x1000 /* first DMA notifier offset */
+ #define DMA_NOTIFIER_SIZE 0x40
+-
+-#define NUM_NOTIFIERS 16
+-
+ #define NOTIFIER 7 /* notifier used for completion report */
+
+ /* A trailing '-' means to subtract off ps3fb_videomemory.size */
+@@ -131,28 +128,6 @@ static int ps3vram_notifier_wait(struct mtd_info *mtd, int timeout_ms)
+ return -1;
+ }
+
+-static void ps3vram_dump_ring(struct mtd_info *mtd)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+- uint32_t *fifo;
+-
+- pr_info("PUT = %08x GET = %08x\n", priv->ctrl[CTRL_PUT],
+- priv->ctrl[CTRL_GET]);
+- for (fifo = priv->fifo_base; fifo < priv->fifo_ptr; fifo++)
+- pr_info("%p: %08x\n", fifo, *fifo);
+-}
+-
+-static void ps3vram_dump_reports(struct mtd_info *mtd)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+- int i;
+-
+- for (i = 0; i < NUM_NOTIFIERS; i++) {
+- uint32_t *n = ps3vram_get_notifier(priv->reports, i);
+- pr_info("%p: %08x\n", n, *n);
+- }
+-}
+-
+ static void ps3vram_init_ring(struct mtd_info *mtd)
+ {
+ struct ps3vram_priv *priv = mtd->priv;
+@@ -284,8 +259,6 @@ static int ps3vram_upload(struct mtd_info *mtd, unsigned int src_offset,
+ ps3vram_fire_ring(mtd);
+ if (ps3vram_notifier_wait(mtd, 200) < 0) {
+ pr_err("notifier timeout\n");
+- ps3vram_dump_ring(mtd);
+- ps3vram_dump_reports(mtd);
+ return -1;
+ }
+
+@@ -317,8 +290,6 @@ static int ps3vram_download(struct mtd_info *mtd, unsigned int src_offset,
+ ps3vram_fire_ring(mtd);
+ if (ps3vram_notifier_wait(mtd, 200) < 0) {
+ pr_err("notifier timeout\n");
+- ps3vram_dump_ring(mtd);
+- ps3vram_dump_reports(mtd);
+ return -1;
+ }
+
+--
+1.6.0.4
+
--- /dev/null
+From f259d74e030faab15b95fb4bb56d7f424773c278 Mon Sep 17 00:00:00 2001
+From: Geoff Levand <geoffrey.levand@am.sony.com>
+Date: Tue, 6 Jan 2009 11:32:21 +0000
+Subject: [PATCH] mtd/ps3vram: Cleanup ps3vram driver messages
+
+Cleanup the ps3vram driver messages. Add a new struct device pointer
+variable dev to struct ps3vram_priv and use dev_dbg(), pr_dbg(), etc.
+where appropriate.
+
+Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+---
+ drivers/mtd/devices/ps3vram.c | 116 ++++++++++++++++++++++++-----------------
+ 1 files changed, 68 insertions(+), 48 deletions(-)
+
+diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c
+index 18ca521..f5cc290 100644
+--- a/drivers/mtd/devices/ps3vram.c
++++ b/drivers/mtd/devices/ps3vram.c
+@@ -53,9 +53,6 @@ struct mtd_info ps3vram_mtd;
+ #define CACHE_PAGE_PRESENT 1
+ #define CACHE_PAGE_DIRTY 2
+
+-#define dbg(fmt, args...) \
+- pr_debug("%s:%d " fmt "\n", __func__, __LINE__, ## args)
+-
+ struct ps3vram_tag {
+ unsigned int address;
+ unsigned int flags;
+@@ -78,6 +75,7 @@ struct ps3vram_priv {
+ uint32_t *fifo_base;
+ uint32_t *fifo_ptr;
+
++ struct device *dev;
+ struct ps3vram_cache cache;
+
+ /* Used to serialize cache/DMA operations */
+@@ -148,8 +146,9 @@ static int ps3vram_wait_ring(struct mtd_info *mtd, int timeout)
+ udelay(1);
+ }
+ if (timeout == 0) {
+- pr_err("FIFO timeout (%08x/%08x/%08x)\n", priv->ctrl[CTRL_PUT],
+- priv->ctrl[CTRL_GET], priv->ctrl[CTRL_TOP]);
++ dev_dbg(priv->dev, "%s:%d: FIFO timeout (%08x/%08x/%08x)\n",
++ __func__, __LINE__, priv->ctrl[CTRL_PUT],
++ priv->ctrl[CTRL_GET], priv->ctrl[CTRL_TOP]);
+ return -ETIMEDOUT;
+ }
+
+@@ -181,7 +180,8 @@ static void ps3vram_rewind_ring(struct mtd_info *mtd)
+ L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
+ 0, 0, 0, 0);
+ if (status)
+- pr_err("ps3vram: lv1_gpu_context_attribute FB_BLIT failed\n");
++ dev_err(priv->dev, "%s:%d: lv1_gpu_context_attribute failed\n",
++ __func__, __LINE__);
+
+ priv->fifo_ptr = priv->fifo_base;
+ }
+@@ -201,11 +201,13 @@ static void ps3vram_fire_ring(struct mtd_info *mtd)
+ L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
+ 0, 0, 0, 0);
+ if (status)
+- pr_err("ps3vram: lv1_gpu_context_attribute FB_BLIT failed\n");
++ dev_err(priv->dev, "%s:%d: lv1_gpu_context_attribute failed\n",
++ __func__, __LINE__);
+
+ if ((priv->fifo_ptr - priv->fifo_base) * sizeof(uint32_t) >
+ FIFO_SIZE - 1024) {
+- dbg("fifo full, rewinding");
++ dev_dbg(priv->dev, "%s:%d: fifo full, rewinding\n", __func__,
++ __LINE__);
+ ps3vram_wait_ring(mtd, 200);
+ ps3vram_rewind_ring(mtd);
+ }
+@@ -258,7 +260,8 @@ static int ps3vram_upload(struct mtd_info *mtd, unsigned int src_offset,
+ ps3vram_out_ring(priv, 0);
+ ps3vram_fire_ring(mtd);
+ if (ps3vram_notifier_wait(mtd, 200) < 0) {
+- pr_err("notifier timeout\n");
++ dev_dbg(priv->dev, "%s:%d: notifier timeout\n", __func__,
++ __LINE__);
+ return -1;
+ }
+
+@@ -289,7 +292,8 @@ static int ps3vram_download(struct mtd_info *mtd, unsigned int src_offset,
+ ps3vram_out_ring(priv, 0);
+ ps3vram_fire_ring(mtd);
+ if (ps3vram_notifier_wait(mtd, 200) < 0) {
+- pr_err("notifier timeout\n");
++ dev_dbg(priv->dev, "%s:%d: notifier timeout\n", __func__,
++ __LINE__);
+ return -1;
+ }
+
+@@ -302,16 +306,17 @@ static void ps3vram_cache_evict(struct mtd_info *mtd, int entry)
+ struct ps3vram_cache *cache = &priv->cache;
+
+ if (cache->tags[entry].flags & CACHE_PAGE_DIRTY) {
+- dbg("flushing %d : 0x%08x", entry, cache->tags[entry].address);
++ dev_dbg(priv->dev, "%s:%d: flushing %d : 0x%08x\n", __func__,
++ __LINE__, entry, cache->tags[entry].address);
+ if (ps3vram_upload(mtd,
+ CACHE_OFFSET + entry * cache->page_size,
+ cache->tags[entry].address,
+ DMA_PAGE_SIZE,
+ cache->page_size / DMA_PAGE_SIZE) < 0) {
+- pr_err("failed to upload from 0x%x to 0x%x size 0x%x\n",
+- entry * cache->page_size,
+- cache->tags[entry].address,
+- cache->page_size);
++ dev_dbg(priv->dev, "%s:%d: failed to upload from "
++ "0x%x to 0x%x size 0x%x\n", __func__, __LINE__,
++ entry * cache->page_size,
++ cache->tags[entry].address, cache->page_size);
+ }
+ cache->tags[entry].flags &= ~CACHE_PAGE_DIRTY;
+ }
+@@ -323,16 +328,16 @@ static void ps3vram_cache_load(struct mtd_info *mtd, int entry,
+ struct ps3vram_priv *priv = mtd->priv;
+ struct ps3vram_cache *cache = &priv->cache;
+
+- dbg("fetching %d : 0x%08x", entry, address);
++ dev_dbg(priv->dev, "%s:%d: fetching %d : 0x%08x\n", __func__, __LINE__,
++ entry, address);
+ if (ps3vram_download(mtd,
+ address,
+ CACHE_OFFSET + entry * cache->page_size,
+ DMA_PAGE_SIZE,
+ cache->page_size / DMA_PAGE_SIZE) < 0) {
+- pr_err("failed to download from 0x%x to 0x%x size 0x%x\n",
+- address,
+- entry * cache->page_size,
+- cache->page_size);
++ dev_err(priv->dev, "%s:%d: failed to download from "
++ "0x%x to 0x%x size 0x%x\n", __func__, __LINE__, address,
++ entry * cache->page_size, cache->page_size);
+ }
+
+ cache->tags[entry].address = address;
+@@ -346,7 +351,7 @@ static void ps3vram_cache_flush(struct mtd_info *mtd)
+ struct ps3vram_cache *cache = &priv->cache;
+ int i;
+
+- dbg("FLUSH");
++ dev_dbg(priv->dev, "%s:%d: FLUSH\n", __func__, __LINE__);
+ for (i = 0; i < cache->page_count; i++) {
+ ps3vram_cache_evict(mtd, i);
+ cache->tags[i].flags = 0;
+@@ -369,15 +374,15 @@ static unsigned int ps3vram_cache_match(struct mtd_info *mtd, loff_t address)
+ for (i = 0; i < cache->page_count; i++) {
+ if ((cache->tags[i].flags & CACHE_PAGE_PRESENT) &&
+ cache->tags[i].address == base) {
+- dbg("found entry %d : 0x%08x",
+- i, cache->tags[i].address);
++ dev_dbg(priv->dev, "%s:%d: found entry %d : 0x%08x\n",
++ __func__, __LINE__, i, cache->tags[i].address);
+ return i;
+ }
+ }
+
+ /* choose a random entry */
+ i = (jiffies + (counter++)) % cache->page_count;
+- dbg("using cache entry %d", i);
++ dev_dbg(priv->dev, "%s:%d: using entry %d\n", __func__, __LINE__, i);
+
+ ps3vram_cache_evict(mtd, i);
+ ps3vram_cache_load(mtd, i, base);
+@@ -389,18 +394,19 @@ static int ps3vram_cache_init(struct mtd_info *mtd)
+ {
+ struct ps3vram_priv *priv = mtd->priv;
+
+- pr_info("creating cache: %d entries, %d bytes pages\n",
+- CACHE_PAGE_COUNT, CACHE_PAGE_SIZE);
+-
+ priv->cache.page_count = CACHE_PAGE_COUNT;
+ priv->cache.page_size = CACHE_PAGE_SIZE;
+ priv->cache.tags = kzalloc(sizeof(struct ps3vram_tag) *
+ CACHE_PAGE_COUNT, GFP_KERNEL);
+ if (priv->cache.tags == NULL) {
+- pr_err("could not allocate cache tags\n");
++ dev_err(priv->dev, "%s:%d: could not allocate cache tags\n",
++ __func__, __LINE__);
+ return -ENOMEM;
+ }
+
++ dev_info(priv->dev, "created ram cache: %d entries, %d KiB each\n",
++ CACHE_PAGE_COUNT, CACHE_PAGE_SIZE / 1024);
++
+ return 0;
+ }
+
+@@ -434,14 +440,14 @@ static int ps3vram_erase(struct mtd_info *mtd, struct erase_info *instr)
+ return 0;
+ }
+
+-
+ static int ps3vram_read(struct mtd_info *mtd, loff_t from, size_t len,
+ size_t *retlen, u_char *buf)
+ {
+ struct ps3vram_priv *priv = mtd->priv;
+ unsigned int cached, count;
+
+- dbg("from = 0x%08x len = 0x%zx", (unsigned int) from, len);
++ dev_dbg(priv->dev, "%s:%d: from=0x%08x len=0x%zx\n", __func__, __LINE__,
++ (unsigned int)from, len);
+
+ if (from >= mtd->size)
+ return -EINVAL;
+@@ -463,8 +469,9 @@ static int ps3vram_read(struct mtd_info *mtd, loff_t from, size_t len,
+ entry = ps3vram_cache_match(mtd, from);
+ cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
+
+- dbg("from=%08x cached=%08x offset=%08x avail=%08x count=%08x",
+- (unsigned)from, cached, offset, avail, count);
++ dev_dbg(priv->dev, "%s:%d: from=%08x cached=%08x offset=%08x "
++ "avail=%08x count=%08x\n", __func__, __LINE__,
++ (unsigned int)from, cached, offset, avail, count);
+
+ if (avail > count)
+ avail = count;
+@@ -507,8 +514,9 @@ static int ps3vram_write(struct mtd_info *mtd, loff_t to, size_t len,
+ entry = ps3vram_cache_match(mtd, to);
+ cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
+
+- dbg("to=%08x cached=%08x offset=%08x avail=%08x count=%08x",
+- (unsigned) to, cached, offset, avail, count);
++ dev_dbg(priv->dev, "%s:%d: to=%08x cached=%08x offset=%08x "
++ "avail=%08x count=%08x\n", __func__, __LINE__,
++ (unsigned int)to, cached, offset, avail, count);
+
+ if (avail > count)
+ avail = count;
+@@ -544,12 +552,14 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+ priv = ps3vram_mtd.priv;
+
+ mutex_init(&priv->lock);
++ priv->dev = &dev->core;
+
+ /* Allocate XDR buffer (1MiB aligned) */
+ priv->xdr_buf = (uint8_t *) __get_free_pages(GFP_KERNEL,
+ get_order(XDR_BUF_SIZE));
+ if (priv->xdr_buf == NULL) {
+- pr_err("ps3vram: could not allocate XDR buffer\n");
++ dev_dbg(&dev->core, "%s:%d: could not allocate XDR buffer\n",
++ __func__, __LINE__);
+ ret = -ENOMEM;
+ goto out_free_priv;
+ }
+@@ -560,7 +570,8 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+
+ /* XXX: Need to open GPU, in case ps3fb or snd_ps3 aren't loaded */
+ if (ps3_open_hv_device(dev)) {
+- pr_err("ps3vram: ps3_open_hv_device failed\n");
++ dev_err(&dev->core, "%s:%d: ps3_open_hv_device failed\n",
++ __func__, __LINE__);
+ ret = -EAGAIN;
+ goto out_close_gpu;
+ }
+@@ -572,7 +583,8 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+ ddr_size -= ps3fb_videomemory.size;
+ ddr_size = ALIGN(ddr_size, 1024*1024);
+ if (ddr_size <= 0) {
+- printk(KERN_ERR "ps3vram: specified size is too small\n");
++ dev_err(&dev->core, "%s:%d: specified size is too small\n",
++ __func__, __LINE__);
+ ret = -EINVAL;
+ goto out_close_gpu;
+ }
+@@ -586,12 +598,11 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+ ddr_size -= 1024*1024;
+ }
+ if (status != 0 || ddr_size <= 0) {
+- pr_err("ps3vram: lv1_gpu_memory_allocate failed\n");
++ dev_err(&dev->core, "%s:%d: lv1_gpu_memory_allocate failed\n",
++ __func__, __LINE__);
+ ret = -ENOMEM;
+ goto out_free_xdr_buf;
+ }
+- pr_info("ps3vram: allocated %u MiB of DDR memory\n",
+- (unsigned int) (ddr_size / 1024 / 1024));
+
+ /* Request context */
+ status = lv1_gpu_context_allocate(priv->memory_handle,
+@@ -602,7 +613,8 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+ &reports_lpar,
+ &reports_size);
+ if (status) {
+- pr_err("ps3vram: lv1_gpu_context_allocate failed\n");
++ dev_err(&dev->core, "%s:%d: lv1_gpu_context_allocate failed\n",
++ __func__, __LINE__);
+ ret = -ENOMEM;
+ goto out_free_memory;
+ }
+@@ -612,28 +624,32 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+ ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)),
+ XDR_BUF_SIZE, 0);
+ if (status) {
+- pr_err("ps3vram: lv1_gpu_context_iomap failed\n");
++ dev_err(&dev->core, "%s:%d: lv1_gpu_context_iomap failed\n",
++ __func__, __LINE__);
+ ret = -ENOMEM;
+ goto out_free_context;
+ }
+
+ priv->base = ioremap(ddr_lpar, ddr_size);
+ if (!priv->base) {
+- pr_err("ps3vram: ioremap failed\n");
++ dev_err(&dev->core, "%s:%d: ioremap failed\n", __func__,
++ __LINE__);
+ ret = -ENOMEM;
+ goto out_free_context;
+ }
+
+ priv->ctrl = ioremap(ctrl_lpar, 64 * 1024);
+ if (!priv->ctrl) {
+- pr_err("ps3vram: ioremap failed\n");
++ dev_err(&dev->core, "%s:%d: ioremap failed\n", __func__,
++ __LINE__);
+ ret = -ENOMEM;
+ goto out_unmap_vram;
+ }
+
+ priv->reports = ioremap(reports_lpar, reports_size);
+ if (!priv->reports) {
+- pr_err("ps3vram: ioremap failed\n");
++ dev_err(&dev->core, "%s:%d: ioremap failed\n", __func__,
++ __LINE__);
+ ret = -ENOMEM;
+ goto out_unmap_ctrl;
+ }
+@@ -661,7 +677,8 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+ ret = ps3vram_wait_ring(&ps3vram_mtd, 100);
+ mutex_unlock(&ps3_gpu_mutex);
+ if (ret < 0) {
+- pr_err("failed to initialize channels\n");
++ dev_err(&dev->core, "%s:%d: failed to initialize channels\n",
++ __func__, __LINE__);
+ ret = -ETIMEDOUT;
+ goto out_unmap_reports;
+ }
+@@ -669,12 +686,15 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+ ps3vram_cache_init(&ps3vram_mtd);
+
+ if (add_mtd_device(&ps3vram_mtd)) {
+- pr_err("ps3vram: failed to register device\n");
++ dev_err(&dev->core, "%s:%d: add_mtd_device failed\n",
++ __func__, __LINE__);
+ ret = -EAGAIN;
+ goto out_cache_cleanup;
+ }
+
+- pr_info("ps3vram mtd device registered, %lu bytes\n", ddr_size);
++ dev_info(&dev->core, "reserved %u MiB of gpu memory\n",
++ (unsigned int)(ddr_size / 1024 / 1024));
++
+ return 0;
+
+ out_cache_cleanup:
+--
+1.6.0.4
+
+++ /dev/null
-From d7ddc1aaee1ff6dd6a73bd3663b6c390800e0500 Mon Sep 17 00:00:00 2001
-From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
-Date: Wed, 25 Feb 2009 18:32:10 +0100
-Subject: [PATCH] ps3/block: Replace mtd/ps3vram by block/ps3vram
-
-Convert the PS3 Video RAM Storage Driver from a MTD driver to a plain block
-device driver, as requested by Arnd Bergmann.
-
-The ps3vram driver exposes unused video RAM on the PS3 as a block device
-suitable for storage or swap. Fast data transfer is achieved using a local
-cache in system RAM and DMA transfers via the GPU.
-
-The new driver is ca. 50% faster for reading, and ca. 10% for writing.
-
-Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
-Acked-by: Jens Axboe <axboe@kernel.dk>
-Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
-Cc: Arnd Bergmann <arnd@arndb.de>
-Cc: David Woodhouse <David.Woodhouse@intel.com>
-Cc: Vivien Chappelier <vivien.chappelier@free.fr>
-Cc: Jim Paris <jim@jtan.com>
-
-Notes:
-
-The MTD-based PS3 Video RAM Storage Driver was integrated into the mainline
-kernel in 2.6.29-rc1.
-
-Ideally, we think it would be best if the existing MTD-based ps3vram driver
-would be replaced by the new block-based ps3vram driver before 2.6.29 is
-released. This would relieve the burden of supporting two different swap space
-schemes on PS3 (swap on /dev/mtdblock0 vs. /dev/ps3vram) from the distro
-maintainer's shoulders, as in that case there would never have been a stable
-kernel version containing the MTD-based ps3vram driver.
-
-Changes since previous submission (Wed, 4 Mar 2009 14:57:20 +0100 (CET)):
- - Use blk_queue_make_request() to get rid of the thread
- - Add a mutex (cfr. the old driver), as ps3vram_make_request() may be called
- concurrently
- TO DO (after 2.6.29): use a spinlock and a list to queue requests while the
- driver is busy
- - Remove the old MTD-based ps3vram driver and rename ps3vram-ng to ps3vram
- - Make PS3_VRAM depend on FB_PS3=y and m for now
- ps3vram relies on ps3fb being initialized first. The easiest way to do this
- is by making ps3vram modular, and ps3fb builtin
- - Remove the dependency on ps3fb_videomemory.size
- The loop to reduce ddr_size until it succeeds does the right thing anyway,
- and a few MiB of DDR RAM are reserved by the hypervisor
- - lv1 return codes can be int
- - Correct a few debug annotations
----
- arch/powerpc/platforms/ps3/Kconfig | 7 +
- drivers/block/Makefile | 1 +
- drivers/block/ps3vram.c | 865 ++++++++++++++++++++++++++++++++++++
- create mode 100644 drivers/block/ps3vram.c
- delete mode 100644 drivers/mtd/devices/ps3vram.c
-
-diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig
-index 920cf7a..740ef56 100644
---- a/arch/powerpc/platforms/ps3/Kconfig
-+++ b/arch/powerpc/platforms/ps3/Kconfig
-@@ -128,6 +128,13 @@ config PS3_FLASH
- be disabled on the kernel command line using "ps3flash=off", to
- not allocate this fixed buffer.
-
-+config PS3_VRAM
-+ tristate "PS3 Video RAM Storage Driver"
-+ depends on FB_PS3=y && BLOCK && m
-+ help
-+ This driver allows you to use excess PS3 video RAM as volatile
-+ storage or system swap.
-+
- config PS3_LPM
- tristate "PS3 Logical Performance Monitor support"
- depends on PPC_PS3
-diff --git a/drivers/block/Makefile b/drivers/block/Makefile
-index 204332b..87e120e 100644
---- a/drivers/block/Makefile
-+++ b/drivers/block/Makefile
-@@ -9,6 +9,7 @@ obj-$(CONFIG_MAC_FLOPPY) += swim3.o
- obj-$(CONFIG_BLK_DEV_FD) += floppy.o
- obj-$(CONFIG_AMIGA_FLOPPY) += amiflop.o
- obj-$(CONFIG_PS3_DISK) += ps3disk.o
-+obj-$(CONFIG_PS3_VRAM) += ps3vram.o
- obj-$(CONFIG_ATARI_FLOPPY) += ataflop.o
- obj-$(CONFIG_AMIGA_Z2RAM) += z2ram.o
- obj-$(CONFIG_BLK_DEV_RAM) += brd.o
-diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
-new file mode 100644
-index 0000000..393ed67
---- /dev/null
-+++ b/drivers/block/ps3vram.c
-@@ -0,0 +1,865 @@
-+/*
-+ * ps3vram - Use extra PS3 video ram as MTD block device.
-+ *
-+ * Copyright 2009 Sony Corporation
-+ *
-+ * Based on the MTD ps3vram driver, which is
-+ * Copyright (c) 2007-2008 Jim Paris <jim@jtan.com>
-+ * Added support RSX DMA Vivien Chappelier <vivien.chappelier@free.fr>
-+ */
-+
-+#include <linux/blkdev.h>
-+#include <linux/delay.h>
-+#include <linux/proc_fs.h>
-+#include <linux/seq_file.h>
-+
-+#include <asm/firmware.h>
-+#include <asm/lv1call.h>
-+#include <asm/ps3.h>
-+
-+
-+#define DEVICE_NAME "ps3vram"
-+
-+
-+#define XDR_BUF_SIZE (2 * 1024 * 1024) /* XDR buffer (must be 1MiB aligned) */
-+#define XDR_IOIF 0x0c000000
-+
-+#define FIFO_BASE XDR_IOIF
-+#define FIFO_SIZE (64 * 1024)
-+
-+#define DMA_PAGE_SIZE (4 * 1024)
-+
-+#define CACHE_PAGE_SIZE (256 * 1024)
-+#define CACHE_PAGE_COUNT ((XDR_BUF_SIZE - FIFO_SIZE) / CACHE_PAGE_SIZE)
-+
-+#define CACHE_OFFSET CACHE_PAGE_SIZE
-+#define FIFO_OFFSET 0
-+
-+#define CTRL_PUT 0x10
-+#define CTRL_GET 0x11
-+#define CTRL_TOP 0x15
-+
-+#define UPLOAD_SUBCH 1
-+#define DOWNLOAD_SUBCH 2
-+
-+#define NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN 0x0000030c
-+#define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY 0x00000104
-+
-+#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601
-+
-+#define CACHE_PAGE_PRESENT 1
-+#define CACHE_PAGE_DIRTY 2
-+
-+struct ps3vram_tag {
-+ unsigned int address;
-+ unsigned int flags;
-+};
-+
-+struct ps3vram_cache {
-+ unsigned int page_count;
-+ unsigned int page_size;
-+ struct ps3vram_tag *tags;
-+ unsigned int hit;
-+ unsigned int miss;
-+};
-+
-+struct ps3vram_priv {
-+ struct request_queue *queue;
-+ struct gendisk *gendisk;
-+
-+ u64 size;
-+
-+ u64 memory_handle;
-+ u64 context_handle;
-+ u32 *ctrl;
-+ u32 *reports;
-+ u8 __iomem *ddr_base;
-+ u8 *xdr_buf;
-+
-+ u32 *fifo_base;
-+ u32 *fifo_ptr;
-+
-+ struct ps3vram_cache cache;
-+
-+ /* Used to serialize cache/DMA operations */
-+ struct mutex lock;
-+};
-+
-+
-+static int ps3vram_major;
-+
-+
-+static struct block_device_operations ps3vram_fops = {
-+ .owner = THIS_MODULE,
-+};
-+
-+
-+#define DMA_NOTIFIER_HANDLE_BASE 0x66604200 /* first DMA notifier handle */
-+#define DMA_NOTIFIER_OFFSET_BASE 0x1000 /* first DMA notifier offset */
-+#define DMA_NOTIFIER_SIZE 0x40
-+#define NOTIFIER 7 /* notifier used for completion report */
-+
-+static char *size = "256M";
-+module_param(size, charp, 0);
-+MODULE_PARM_DESC(size, "memory size");
-+
-+static u32 *ps3vram_get_notifier(u32 *reports, int notifier)
-+{
-+ return (void *)reports + DMA_NOTIFIER_OFFSET_BASE +
-+ DMA_NOTIFIER_SIZE * notifier;
-+}
-+
-+static void ps3vram_notifier_reset(struct ps3_system_bus_device *dev)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+ u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
-+ int i;
-+
-+ for (i = 0; i < 4; i++)
-+ notify[i] = 0xffffffff;
-+}
-+
-+static int ps3vram_notifier_wait(struct ps3_system_bus_device *dev,
-+ unsigned int timeout_ms)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+ u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
-+ unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
-+
-+ do {
-+ if (!notify[3])
-+ return 0;
-+ msleep(1);
-+ } while (time_before(jiffies, timeout));
-+
-+ return -ETIMEDOUT;
-+}
-+
-+static void ps3vram_init_ring(struct ps3_system_bus_device *dev)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+
-+ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET;
-+ priv->ctrl[CTRL_GET] = FIFO_BASE + FIFO_OFFSET;
-+}
-+
-+static int ps3vram_wait_ring(struct ps3_system_bus_device *dev,
-+ unsigned int timeout_ms)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+ unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
-+
-+ do {
-+ if (priv->ctrl[CTRL_PUT] == priv->ctrl[CTRL_GET])
-+ return 0;
-+ msleep(1);
-+ } while (time_before(jiffies, timeout));
-+
-+ dev_warn(&dev->core, "FIFO timeout (%08x/%08x/%08x)\n",
-+ priv->ctrl[CTRL_PUT], priv->ctrl[CTRL_GET],
-+ priv->ctrl[CTRL_TOP]);
-+
-+ return -ETIMEDOUT;
-+}
-+
-+static void ps3vram_out_ring(struct ps3vram_priv *priv, u32 data)
-+{
-+ *(priv->fifo_ptr)++ = data;
-+}
-+
-+static void ps3vram_begin_ring(struct ps3vram_priv *priv, u32 chan, u32 tag,
-+ u32 size)
-+{
-+ ps3vram_out_ring(priv, (size << 18) | (chan << 13) | tag);
-+}
-+
-+static void ps3vram_rewind_ring(struct ps3_system_bus_device *dev)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+ int status;
-+
-+ ps3vram_out_ring(priv, 0x20000000 | (FIFO_BASE + FIFO_OFFSET));
-+
-+ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET;
-+
-+ /* asking the HV for a blit will kick the FIFO */
-+ status = lv1_gpu_context_attribute(priv->context_handle,
-+ L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT, 0,
-+ 0, 0, 0);
-+ if (status)
-+ dev_err(&dev->core,
-+ "%s: lv1_gpu_context_attribute failed %d\n", __func__,
-+ status);
-+
-+ priv->fifo_ptr = priv->fifo_base;
-+}
-+
-+static void ps3vram_fire_ring(struct ps3_system_bus_device *dev)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+ int status;
-+
-+ mutex_lock(&ps3_gpu_mutex);
-+
-+ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET +
-+ (priv->fifo_ptr - priv->fifo_base) * sizeof(u32);
-+
-+ /* asking the HV for a blit will kick the FIFO */
-+ status = lv1_gpu_context_attribute(priv->context_handle,
-+ L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT, 0,
-+ 0, 0, 0);
-+ if (status)
-+ dev_err(&dev->core,
-+ "%s: lv1_gpu_context_attribute failed %d\n", __func__,
-+ status);
-+
-+ if ((priv->fifo_ptr - priv->fifo_base) * sizeof(u32) >
-+ FIFO_SIZE - 1024) {
-+ dev_dbg(&dev->core, "FIFO full, rewinding\n");
-+ ps3vram_wait_ring(dev, 200);
-+ ps3vram_rewind_ring(dev);
-+ }
-+
-+ mutex_unlock(&ps3_gpu_mutex);
-+}
-+
-+static void ps3vram_bind(struct ps3_system_bus_device *dev)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+
-+ ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0, 1);
-+ ps3vram_out_ring(priv, 0x31337303);
-+ ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0x180, 3);
-+ ps3vram_out_ring(priv, DMA_NOTIFIER_HANDLE_BASE + NOTIFIER);
-+ ps3vram_out_ring(priv, 0xfeed0001); /* DMA system RAM instance */
-+ ps3vram_out_ring(priv, 0xfeed0000); /* DMA video RAM instance */
-+
-+ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0, 1);
-+ ps3vram_out_ring(priv, 0x3137c0de);
-+ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0x180, 3);
-+ ps3vram_out_ring(priv, DMA_NOTIFIER_HANDLE_BASE + NOTIFIER);
-+ ps3vram_out_ring(priv, 0xfeed0000); /* DMA video RAM instance */
-+ ps3vram_out_ring(priv, 0xfeed0001); /* DMA system RAM instance */
-+
-+ ps3vram_fire_ring(dev);
-+}
-+
-+static int ps3vram_upload(struct ps3_system_bus_device *dev,
-+ unsigned int src_offset, unsigned int dst_offset,
-+ int len, int count)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+
-+ ps3vram_begin_ring(priv, UPLOAD_SUBCH,
-+ NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
-+ ps3vram_out_ring(priv, XDR_IOIF + src_offset);
-+ ps3vram_out_ring(priv, dst_offset);
-+ ps3vram_out_ring(priv, len);
-+ ps3vram_out_ring(priv, len);
-+ ps3vram_out_ring(priv, len);
-+ ps3vram_out_ring(priv, count);
-+ ps3vram_out_ring(priv, (1 << 8) | 1);
-+ ps3vram_out_ring(priv, 0);
-+
-+ ps3vram_notifier_reset(dev);
-+ ps3vram_begin_ring(priv, UPLOAD_SUBCH,
-+ NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY, 1);
-+ ps3vram_out_ring(priv, 0);
-+ ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0x100, 1);
-+ ps3vram_out_ring(priv, 0);
-+ ps3vram_fire_ring(dev);
-+ if (ps3vram_notifier_wait(dev, 200) < 0) {
-+ dev_warn(&dev->core, "%s: Notifier timeout\n", __func__);
-+ return -1;
-+ }
-+
-+ return 0;
-+}
-+
-+static int ps3vram_download(struct ps3_system_bus_device *dev,
-+ unsigned int src_offset, unsigned int dst_offset,
-+ int len, int count)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+
-+ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH,
-+ NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
-+ ps3vram_out_ring(priv, src_offset);
-+ ps3vram_out_ring(priv, XDR_IOIF + dst_offset);
-+ ps3vram_out_ring(priv, len);
-+ ps3vram_out_ring(priv, len);
-+ ps3vram_out_ring(priv, len);
-+ ps3vram_out_ring(priv, count);
-+ ps3vram_out_ring(priv, (1 << 8) | 1);
-+ ps3vram_out_ring(priv, 0);
-+
-+ ps3vram_notifier_reset(dev);
-+ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH,
-+ NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY, 1);
-+ ps3vram_out_ring(priv, 0);
-+ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0x100, 1);
-+ ps3vram_out_ring(priv, 0);
-+ ps3vram_fire_ring(dev);
-+ if (ps3vram_notifier_wait(dev, 200) < 0) {
-+ dev_warn(&dev->core, "%s: Notifier timeout\n", __func__);
-+ return -1;
-+ }
-+
-+ return 0;
-+}
-+
-+static void ps3vram_cache_evict(struct ps3_system_bus_device *dev, int entry)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+ struct ps3vram_cache *cache = &priv->cache;
-+
-+ if (!(cache->tags[entry].flags & CACHE_PAGE_DIRTY))
-+ return;
-+
-+ dev_dbg(&dev->core, "Flushing %d: 0x%08x\n", entry,
-+ cache->tags[entry].address);
-+ if (ps3vram_upload(dev, CACHE_OFFSET + entry * cache->page_size,
-+ cache->tags[entry].address, DMA_PAGE_SIZE,
-+ cache->page_size / DMA_PAGE_SIZE) < 0) {
-+ dev_err(&dev->core,
-+ "Failed to upload from 0x%x to " "0x%x size 0x%x\n",
-+ entry * cache->page_size, cache->tags[entry].address,
-+ cache->page_size);
-+ }
-+ cache->tags[entry].flags &= ~CACHE_PAGE_DIRTY;
-+}
-+
-+static void ps3vram_cache_load(struct ps3_system_bus_device *dev, int entry,
-+ unsigned int address)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+ struct ps3vram_cache *cache = &priv->cache;
-+
-+ dev_dbg(&dev->core, "Fetching %d: 0x%08x\n", entry, address);
-+ if (ps3vram_download(dev, address,
-+ CACHE_OFFSET + entry * cache->page_size,
-+ DMA_PAGE_SIZE,
-+ cache->page_size / DMA_PAGE_SIZE) < 0) {
-+ dev_err(&dev->core,
-+ "Failed to download from 0x%x to 0x%x size 0x%x\n",
-+ address, entry * cache->page_size, cache->page_size);
-+ }
-+
-+ cache->tags[entry].address = address;
-+ cache->tags[entry].flags |= CACHE_PAGE_PRESENT;
-+}
-+
-+
-+static void ps3vram_cache_flush(struct ps3_system_bus_device *dev)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+ struct ps3vram_cache *cache = &priv->cache;
-+ int i;
-+
-+ dev_dbg(&dev->core, "FLUSH\n");
-+ for (i = 0; i < cache->page_count; i++) {
-+ ps3vram_cache_evict(dev, i);
-+ cache->tags[i].flags = 0;
-+ }
-+}
-+
-+static unsigned int ps3vram_cache_match(struct ps3_system_bus_device *dev,
-+ loff_t address)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+ struct ps3vram_cache *cache = &priv->cache;
-+ unsigned int base;
-+ unsigned int offset;
-+ int i;
-+ static int counter;
-+
-+ offset = (unsigned int) (address & (cache->page_size - 1));
-+ base = (unsigned int) (address - offset);
-+
-+ /* fully associative check */
-+ for (i = 0; i < cache->page_count; i++) {
-+ if ((cache->tags[i].flags & CACHE_PAGE_PRESENT) &&
-+ cache->tags[i].address == base) {
-+ cache->hit++;
-+ dev_dbg(&dev->core, "Found entry %d: 0x%08x\n", i,
-+ cache->tags[i].address);
-+ return i;
-+ }
-+ }
-+
-+ /* choose a random entry */
-+ i = (jiffies + (counter++)) % cache->page_count;
-+ dev_dbg(&dev->core, "Using entry %d\n", i);
-+
-+ ps3vram_cache_evict(dev, i);
-+ ps3vram_cache_load(dev, i, base);
-+
-+ cache->miss++;
-+ return i;
-+}
-+
-+static int ps3vram_cache_init(struct ps3_system_bus_device *dev)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+
-+ priv->cache.page_count = CACHE_PAGE_COUNT;
-+ priv->cache.page_size = CACHE_PAGE_SIZE;
-+ priv->cache.tags = kzalloc(sizeof(struct ps3vram_tag) *
-+ CACHE_PAGE_COUNT, GFP_KERNEL);
-+ if (priv->cache.tags == NULL) {
-+ dev_err(&dev->core, "Could not allocate cache tags\n");
-+ return -ENOMEM;
-+ }
-+
-+ dev_info(&dev->core, "Created ram cache: %d entries, %d KiB each\n",
-+ CACHE_PAGE_COUNT, CACHE_PAGE_SIZE / 1024);
-+
-+ return 0;
-+}
-+
-+static void ps3vram_cache_cleanup(struct ps3_system_bus_device *dev)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+
-+ ps3vram_cache_flush(dev);
-+ kfree(priv->cache.tags);
-+}
-+
-+static int ps3vram_read(struct ps3_system_bus_device *dev, loff_t from,
-+ size_t len, size_t *retlen, u_char *buf)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+ unsigned int cached, count;
-+
-+ dev_dbg(&dev->core, "%s: from=0x%08x len=0x%zx\n", __func__,
-+ (unsigned int)from, len);
-+
-+ if (from >= priv->size)
-+ return -EIO;
-+
-+ if (len > priv->size - from)
-+ len = priv->size - from;
-+
-+ /* Copy from vram to buf */
-+ count = len;
-+ while (count) {
-+ unsigned int offset, avail;
-+ unsigned int entry;
-+
-+ offset = (unsigned int) (from & (priv->cache.page_size - 1));
-+ avail = priv->cache.page_size - offset;
-+
-+ mutex_lock(&priv->lock);
-+
-+ entry = ps3vram_cache_match(dev, from);
-+ cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
-+
-+ dev_dbg(&dev->core, "%s: from=%08x cached=%08x offset=%08x "
-+ "avail=%08x count=%08x\n", __func__,
-+ (unsigned int)from, cached, offset, avail, count);
-+
-+ if (avail > count)
-+ avail = count;
-+ memcpy(buf, priv->xdr_buf + cached, avail);
-+
-+ mutex_unlock(&priv->lock);
-+
-+ buf += avail;
-+ count -= avail;
-+ from += avail;
-+ }
-+
-+ *retlen = len;
-+ return 0;
-+}
-+
-+static int ps3vram_write(struct ps3_system_bus_device *dev, loff_t to,
-+ size_t len, size_t *retlen, const u_char *buf)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+ unsigned int cached, count;
-+
-+ if (to >= priv->size)
-+ return -EIO;
-+
-+ if (len > priv->size - to)
-+ len = priv->size - to;
-+
-+ /* Copy from buf to vram */
-+ count = len;
-+ while (count) {
-+ unsigned int offset, avail;
-+ unsigned int entry;
-+
-+ offset = (unsigned int) (to & (priv->cache.page_size - 1));
-+ avail = priv->cache.page_size - offset;
-+
-+ mutex_lock(&priv->lock);
-+
-+ entry = ps3vram_cache_match(dev, to);
-+ cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
-+
-+ dev_dbg(&dev->core, "%s: to=%08x cached=%08x offset=%08x "
-+ "avail=%08x count=%08x\n", __func__, (unsigned int)to,
-+ cached, offset, avail, count);
-+
-+ if (avail > count)
-+ avail = count;
-+ memcpy(priv->xdr_buf + cached, buf, avail);
-+
-+ priv->cache.tags[entry].flags |= CACHE_PAGE_DIRTY;
-+
-+ mutex_unlock(&priv->lock);
-+
-+ buf += avail;
-+ count -= avail;
-+ to += avail;
-+ }
-+
-+ *retlen = len;
-+ return 0;
-+}
-+
-+static int ps3vram_proc_show(struct seq_file *m, void *v)
-+{
-+ struct ps3vram_priv *priv = m->private;
-+
-+ seq_printf(m, "hit:%u\nmiss:%u\n", priv->cache.hit, priv->cache.miss);
-+ return 0;
-+}
-+
-+static int ps3vram_proc_open(struct inode *inode, struct file *file)
-+{
-+ return single_open(file, ps3vram_proc_show, PDE(inode)->data);
-+}
-+
-+static const struct file_operations ps3vram_proc_fops = {
-+ .owner = THIS_MODULE,
-+ .open = ps3vram_proc_open,
-+ .read = seq_read,
-+ .llseek = seq_lseek,
-+ .release = single_release,
-+};
-+
-+static void __devinit ps3vram_proc_init(struct ps3_system_bus_device *dev)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+ struct proc_dir_entry *pde;
-+
-+ pde = proc_create(DEVICE_NAME, 0444, NULL, &ps3vram_proc_fops);
-+ if (!pde) {
-+ dev_warn(&dev->core, "failed to create /proc entry\n");
-+ return;
-+ }
-+
-+ pde->owner = THIS_MODULE;
-+ pde->data = priv;
-+}
-+
-+static int ps3vram_make_request(struct request_queue *q, struct bio *bio)
-+{
-+ struct ps3_system_bus_device *dev = q->queuedata;
-+ int write = bio_data_dir(bio) == WRITE;
-+ const char *op = write ? "write" : "read";
-+ loff_t offset = bio->bi_sector << 9;
-+ int error = 0;
-+ struct bio_vec *bvec;
-+ unsigned int i;
-+
-+ dev_dbg(&dev->core, "%s\n", __func__);
-+
-+ bio_for_each_segment(bvec, bio, i) {
-+ /* PS3 is ppc64, so we don't handle highmem */
-+ char *ptr = page_address(bvec->bv_page) + bvec->bv_offset;
-+ size_t len = bvec->bv_len, retlen;
-+
-+ dev_dbg(&dev->core, " %s %zu bytes at offset %llu\n", op,
-+ len, offset);
-+ if (write)
-+ error = ps3vram_write(dev, offset, len, &retlen, ptr);
-+ else
-+ error = ps3vram_read(dev, offset, len, &retlen, ptr);
-+
-+ if (error) {
-+ dev_err(&dev->core, "%s failed\n", op);
-+ goto out;
-+ }
-+
-+ if (retlen != len) {
-+ dev_err(&dev->core, "Short %s\n", op);
-+ goto out;
-+ }
-+
-+ offset += len;
-+ }
-+
-+ dev_dbg(&dev->core, "%s completed\n", op);
-+
-+out:
-+ bio_endio(bio, error);
-+ return 0;
-+}
-+
-+static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
-+{
-+ struct ps3vram_priv *priv;
-+ int error, status;
-+ struct request_queue *queue;
-+ struct gendisk *gendisk;
-+ u64 ddr_lpar, ctrl_lpar, info_lpar, reports_lpar, ddr_size,
-+ reports_size;
-+ char *rest;
-+
-+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-+ if (!priv) {
-+ error = -ENOMEM;
-+ goto fail;
-+ }
-+
-+ mutex_init(&priv->lock);
-+ dev->core.driver_data = priv;
-+
-+ priv = dev->core.driver_data;
-+
-+ /* Allocate XDR buffer (1MiB aligned) */
-+ priv->xdr_buf = (void *)__get_free_pages(GFP_KERNEL,
-+ get_order(XDR_BUF_SIZE));
-+ if (priv->xdr_buf == NULL) {
-+ dev_err(&dev->core, "Could not allocate XDR buffer\n");
-+ error = -ENOMEM;
-+ goto fail_free_priv;
-+ }
-+
-+ /* Put FIFO at begginning of XDR buffer */
-+ priv->fifo_base = (u32 *) (priv->xdr_buf + FIFO_OFFSET);
-+ priv->fifo_ptr = priv->fifo_base;
-+
-+ /* XXX: Need to open GPU, in case ps3fb or snd_ps3 aren't loaded */
-+ if (ps3_open_hv_device(dev)) {
-+ dev_err(&dev->core, "ps3_open_hv_device failed\n");
-+ error = -EAGAIN;
-+ goto out_close_gpu;
-+ }
-+
-+ /* Request memory */
-+ status = -1;
-+ ddr_size = ALIGN(memparse(size, &rest), 1024*1024);
-+ if (!ddr_size) {
-+ dev_err(&dev->core, "Specified size is too small\n");
-+ error = -EINVAL;
-+ goto out_close_gpu;
-+ }
-+
-+ while (ddr_size > 0) {
-+ status = lv1_gpu_memory_allocate(ddr_size, 0, 0, 0, 0,
-+ &priv->memory_handle,
-+ &ddr_lpar);
-+ if (!status)
-+ break;
-+ ddr_size -= 1024*1024;
-+ }
-+ if (status) {
-+ dev_err(&dev->core, "lv1_gpu_memory_allocate failed %d\n",
-+ status);
-+ error = -ENOMEM;
-+ goto out_free_xdr_buf;
-+ }
-+
-+ /* Request context */
-+ status = lv1_gpu_context_allocate(priv->memory_handle, 0,
-+ &priv->context_handle, &ctrl_lpar,
-+ &info_lpar, &reports_lpar,
-+ &reports_size);
-+ if (status) {
-+ dev_err(&dev->core, "lv1_gpu_context_allocate failed %d\n",
-+ status);
-+ error = -ENOMEM;
-+ goto out_free_memory;
-+ }
-+
-+ /* Map XDR buffer to RSX */
-+ status = lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF,
-+ ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)),
-+ XDR_BUF_SIZE, 0);
-+ if (status) {
-+ dev_err(&dev->core, "lv1_gpu_context_iomap failed %d\n",
-+ status);
-+ error = -ENOMEM;
-+ goto out_free_context;
-+ }
-+
-+ priv->ddr_base = ioremap_flags(ddr_lpar, ddr_size, _PAGE_NO_CACHE);
-+
-+ if (!priv->ddr_base) {
-+ dev_err(&dev->core, "ioremap DDR failed\n");
-+ error = -ENOMEM;
-+ goto out_free_context;
-+ }
-+
-+ priv->ctrl = ioremap(ctrl_lpar, 64 * 1024);
-+ if (!priv->ctrl) {
-+ dev_err(&dev->core, "ioremap CTRL failed\n");
-+ error = -ENOMEM;
-+ goto out_unmap_vram;
-+ }
-+
-+ priv->reports = ioremap(reports_lpar, reports_size);
-+ if (!priv->reports) {
-+ dev_err(&dev->core, "ioremap REPORTS failed\n");
-+ error = -ENOMEM;
-+ goto out_unmap_ctrl;
-+ }
-+
-+ mutex_lock(&ps3_gpu_mutex);
-+ ps3vram_init_ring(dev);
-+ mutex_unlock(&ps3_gpu_mutex);
-+
-+ priv->size = ddr_size;
-+
-+ ps3vram_bind(dev);
-+
-+ mutex_lock(&ps3_gpu_mutex);
-+ error = ps3vram_wait_ring(dev, 100);
-+ mutex_unlock(&ps3_gpu_mutex);
-+ if (error < 0) {
-+ dev_err(&dev->core, "Failed to initialize channels\n");
-+ error = -ETIMEDOUT;
-+ goto out_unmap_reports;
-+ }
-+
-+ ps3vram_cache_init(dev);
-+ ps3vram_proc_init(dev);
-+
-+ queue = blk_alloc_queue(GFP_KERNEL);
-+ if (!queue) {
-+ dev_err(&dev->core, "blk_alloc_queue failed\n");
-+ error = -ENOMEM;
-+ goto out_cache_cleanup;
-+ }
-+
-+ priv->queue = queue;
-+ queue->queuedata = dev;
-+ blk_queue_make_request(queue, ps3vram_make_request);
-+ blk_queue_max_phys_segments(queue, MAX_PHYS_SEGMENTS);
-+ blk_queue_max_hw_segments(queue, MAX_HW_SEGMENTS);
-+ blk_queue_max_segment_size(queue, MAX_SEGMENT_SIZE);
-+ blk_queue_max_sectors(queue, SAFE_MAX_SECTORS);
-+
-+ gendisk = alloc_disk(1);
-+ if (!gendisk) {
-+ dev_err(&dev->core, "alloc_disk failed\n");
-+ error = -ENOMEM;
-+ goto fail_cleanup_queue;
-+ }
-+
-+ priv->gendisk = gendisk;
-+ gendisk->major = ps3vram_major;
-+ gendisk->first_minor = 0;
-+ gendisk->fops = &ps3vram_fops;
-+ gendisk->queue = queue;
-+ gendisk->private_data = dev;
-+ gendisk->driverfs_dev = &dev->core;
-+ strlcpy(gendisk->disk_name, DEVICE_NAME, sizeof(gendisk->disk_name));
-+ set_capacity(gendisk, priv->size >> 9);
-+
-+ dev_info(&dev->core, "%s: Using %lu MiB of GPU memory\n",
-+ gendisk->disk_name, get_capacity(gendisk) >> 11);
-+
-+ add_disk(gendisk);
-+ return 0;
-+
-+fail_cleanup_queue:
-+ blk_cleanup_queue(queue);
-+out_cache_cleanup:
-+ remove_proc_entry(DEVICE_NAME, NULL);
-+ ps3vram_cache_cleanup(dev);
-+out_unmap_reports:
-+ iounmap(priv->reports);
-+out_unmap_ctrl:
-+ iounmap(priv->ctrl);
-+out_unmap_vram:
-+ iounmap(priv->ddr_base);
-+out_free_context:
-+ lv1_gpu_context_free(priv->context_handle);
-+out_free_memory:
-+ lv1_gpu_memory_free(priv->memory_handle);
-+out_close_gpu:
-+ ps3_close_hv_device(dev);
-+out_free_xdr_buf:
-+ free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE));
-+fail_free_priv:
-+ kfree(priv);
-+ dev->core.driver_data = NULL;
-+fail:
-+ return error;
-+}
-+
-+static int ps3vram_remove(struct ps3_system_bus_device *dev)
-+{
-+ struct ps3vram_priv *priv = dev->core.driver_data;
-+
-+ del_gendisk(priv->gendisk);
-+ put_disk(priv->gendisk);
-+ blk_cleanup_queue(priv->queue);
-+ remove_proc_entry(DEVICE_NAME, NULL);
-+ ps3vram_cache_cleanup(dev);
-+ iounmap(priv->reports);
-+ iounmap(priv->ctrl);
-+ iounmap(priv->ddr_base);
-+ lv1_gpu_context_free(priv->context_handle);
-+ lv1_gpu_memory_free(priv->memory_handle);
-+ ps3_close_hv_device(dev);
-+ free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE));
-+ kfree(priv);
-+ dev->core.driver_data = NULL;
-+ return 0;
-+}
-+
-+static struct ps3_system_bus_driver ps3vram = {
-+ .match_id = PS3_MATCH_ID_GPU,
-+ .match_sub_id = PS3_MATCH_SUB_ID_GPU_RAMDISK,
-+ .core.name = DEVICE_NAME,
-+ .core.owner = THIS_MODULE,
-+ .probe = ps3vram_probe,
-+ .remove = ps3vram_remove,
-+ .shutdown = ps3vram_remove,
-+};
-+
-+
-+static int __init ps3vram_init(void)
-+{
-+ int error;
-+
-+ if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
-+ return -ENODEV;
-+
-+ error = register_blkdev(0, DEVICE_NAME);
-+ if (error <= 0) {
-+ pr_err("%s: register_blkdev failed %d\n", DEVICE_NAME, error);
-+ return error;
-+ }
-+ ps3vram_major = error;
-+
-+ pr_info("%s: registered block device major %d\n", DEVICE_NAME,
-+ ps3vram_major);
-+
-+ error = ps3_system_bus_driver_register(&ps3vram);
-+ if (error)
-+ unregister_blkdev(ps3vram_major, DEVICE_NAME);
-+
-+ return error;
-+}
-+
-+static void __exit ps3vram_exit(void)
-+{
-+ ps3_system_bus_driver_unregister(&ps3vram);
-+ unregister_blkdev(ps3vram_major, DEVICE_NAME);
-+}
-+
-+module_init(ps3vram_init);
-+module_exit(ps3vram_exit);
-+
-+MODULE_LICENSE("GPL");
-+MODULE_DESCRIPTION("PS3 Video RAM Storage Driver");
-+MODULE_AUTHOR("Sony Corporation");
-+MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_RAMDISK);
--- /dev/null
+From 993e62e674ba670341f11f60398446bb37a88e8b Mon Sep 17 00:00:00 2001
+From: Geoff Levand <geoffrey.levand@am.sony.com>
+Date: Tue, 6 Jan 2009 11:32:28 +0000
+Subject: [PATCH] mtd/ps3vram: Use proper kernel types
+
+Replace the use of stdint.h types with kernel types
+in the ps3vram driver.
+
+Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+---
+ drivers/mtd/devices/ps3vram.c | 56 ++++++++++++++++++++++-------------------
+ 1 files changed, 30 insertions(+), 26 deletions(-)
+
+diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c
+index f5cc290..91cc2af 100644
+--- a/drivers/mtd/devices/ps3vram.c
++++ b/drivers/mtd/devices/ps3vram.c
+@@ -65,15 +65,15 @@ struct ps3vram_cache {
+ };
+
+ struct ps3vram_priv {
+- uint64_t memory_handle;
+- uint64_t context_handle;
+- uint8_t *base;
+- uint32_t *ctrl;
+- uint32_t *reports;
+- uint8_t *xdr_buf;
++ u64 memory_handle;
++ u64 context_handle;
++ u32 *ctrl;
++ u32 *reports;
++ u8 *base;
++ u8 *xdr_buf;
+
+- uint32_t *fifo_base;
+- uint32_t *fifo_ptr;
++ u32 *fifo_base;
++ u32 *fifo_ptr;
+
+ struct device *dev;
+ struct ps3vram_cache cache;
+@@ -92,7 +92,7 @@ char *size = "256M-";
+ module_param(size, charp, 0);
+ MODULE_PARM_DESC(size, "memory size");
+
+-static inline uint32_t *ps3vram_get_notifier(uint32_t *reports, int notifier)
++static u32 *ps3vram_get_notifier(u32 *reports, int notifier)
+ {
+ return (void *) reports +
+ DMA_NOTIFIER_OFFSET_BASE +
+@@ -102,8 +102,9 @@ static inline uint32_t *ps3vram_get_notifier(uint32_t *reports, int notifier)
+ static void ps3vram_notifier_reset(struct mtd_info *mtd)
+ {
+ int i;
++
+ struct ps3vram_priv *priv = mtd->priv;
+- uint32_t *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
++ u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
+ for (i = 0; i < 4; i++)
+ notify[i] = 0xffffffff;
+ }
+@@ -111,7 +112,7 @@ static void ps3vram_notifier_reset(struct mtd_info *mtd)
+ static int ps3vram_notifier_wait(struct mtd_info *mtd, int timeout_ms)
+ {
+ struct ps3vram_priv *priv = mtd->priv;
+- uint32_t *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
++ u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
+
+ timeout_ms *= 1000;
+
+@@ -155,13 +156,13 @@ static int ps3vram_wait_ring(struct mtd_info *mtd, int timeout)
+ return 0;
+ }
+
+-static inline void ps3vram_out_ring(struct ps3vram_priv *priv, uint32_t data)
++static void ps3vram_out_ring(struct ps3vram_priv *priv, u32 data)
+ {
+ *(priv->fifo_ptr)++ = data;
+ }
+
+-static inline void ps3vram_begin_ring(struct ps3vram_priv *priv, uint32_t chan,
+- uint32_t tag, uint32_t size)
++static void ps3vram_begin_ring(struct ps3vram_priv *priv, u32 chan,
++ u32 tag, u32 size)
+ {
+ ps3vram_out_ring(priv, (size << 18) | (chan << 13) | tag);
+ }
+@@ -194,7 +195,7 @@ static void ps3vram_fire_ring(struct mtd_info *mtd)
+ mutex_lock(&ps3_gpu_mutex);
+
+ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET +
+- (priv->fifo_ptr - priv->fifo_base) * sizeof(uint32_t);
++ (priv->fifo_ptr - priv->fifo_base) * sizeof(u32);
+
+ /* asking the HV for a blit will kick the fifo */
+ status = lv1_gpu_context_attribute(priv->context_handle,
+@@ -204,8 +205,8 @@ static void ps3vram_fire_ring(struct mtd_info *mtd)
+ dev_err(priv->dev, "%s:%d: lv1_gpu_context_attribute failed\n",
+ __func__, __LINE__);
+
+- if ((priv->fifo_ptr - priv->fifo_base) * sizeof(uint32_t) >
+- FIFO_SIZE - 1024) {
++ if ((priv->fifo_ptr - priv->fifo_base) * sizeof(u32) >
++ FIFO_SIZE - 1024) {
+ dev_dbg(priv->dev, "%s:%d: fifo full, rewinding\n", __func__,
+ __LINE__);
+ ps3vram_wait_ring(mtd, 200);
+@@ -538,10 +539,13 @@ static int ps3vram_write(struct mtd_info *mtd, loff_t to, size_t len,
+ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+ {
+ struct ps3vram_priv *priv;
+- uint64_t status;
+- uint64_t ddr_lpar, ctrl_lpar, info_lpar, reports_lpar;
+- int64_t ddr_size;
+- uint64_t reports_size;
++ int status;
++ u64 ddr_lpar;
++ u64 ctrl_lpar;
++ u64 info_lpar;
++ u64 reports_lpar;
++ u64 ddr_size;
++ u64 reports_size;
+ int ret = -ENOMEM;
+ char *rest;
+
+@@ -555,8 +559,8 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+ priv->dev = &dev->core;
+
+ /* Allocate XDR buffer (1MiB aligned) */
+- priv->xdr_buf = (uint8_t *) __get_free_pages(GFP_KERNEL,
+- get_order(XDR_BUF_SIZE));
++ priv->xdr_buf = (void *)__get_free_pages(GFP_KERNEL,
++ get_order(XDR_BUF_SIZE));
+ if (priv->xdr_buf == NULL) {
+ dev_dbg(&dev->core, "%s:%d: could not allocate XDR buffer\n",
+ __func__, __LINE__);
+@@ -565,7 +569,7 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+ }
+
+ /* Put FIFO at begginning of XDR buffer */
+- priv->fifo_base = (uint32_t *) (priv->xdr_buf + FIFO_OFFSET);
++ priv->fifo_base = (u32 *) (priv->xdr_buf + FIFO_OFFSET);
+ priv->fifo_ptr = priv->fifo_base;
+
+ /* XXX: Need to open GPU, in case ps3fb or snd_ps3 aren't loaded */
+@@ -593,11 +597,11 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+ status = lv1_gpu_memory_allocate(ddr_size, 0, 0, 0, 0,
+ &priv->memory_handle,
+ &ddr_lpar);
+- if (status == 0)
++ if (!status)
+ break;
+ ddr_size -= 1024*1024;
+ }
+- if (status != 0 || ddr_size <= 0) {
++ if (status || ddr_size <= 0) {
+ dev_err(&dev->core, "%s:%d: lv1_gpu_memory_allocate failed\n",
+ __func__, __LINE__);
+ ret = -ENOMEM;
+--
+1.6.0.4
+
--- /dev/null
+From 60c0c5987b0996a7c7c4c6d90f63ed413c368a71 Mon Sep 17 00:00:00 2001
+From: Geoff Levand <geoffrey.levand@am.sony.com>
+Date: Wed, 7 Jan 2009 17:22:02 -0800
+Subject: [PATCH] mtd/ps3vram: Use msleep in waits
+
+Replace the use of udelay() with msleep() in the looping wait routines
+ps3vram_notifier_wait() and ps3vram_wait_ring().
+
+Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+---
+ drivers/mtd/devices/ps3vram.c | 42 +++++++++++++++++-----------------------
+ 1 files changed, 18 insertions(+), 24 deletions(-)
+
+diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c
+index 91cc2af..d592414 100644
+--- a/drivers/mtd/devices/ps3vram.c
++++ b/drivers/mtd/devices/ps3vram.c
+@@ -109,22 +109,19 @@ static void ps3vram_notifier_reset(struct mtd_info *mtd)
+ notify[i] = 0xffffffff;
+ }
+
+-static int ps3vram_notifier_wait(struct mtd_info *mtd, int timeout_ms)
++static int ps3vram_notifier_wait(struct mtd_info *mtd, unsigned int timeout_ms)
+ {
+ struct ps3vram_priv *priv = mtd->priv;
+ u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
+-
+- timeout_ms *= 1000;
++ unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
+
+ do {
+- if (notify[3] == 0)
++ if (!notify[3])
+ return 0;
++ msleep(1);
++ } while (time_before(jiffies, timeout));
+
+- if (timeout_ms)
+- udelay(1);
+- } while (timeout_ms--);
+-
+- return -1;
++ return -ETIMEDOUT;
+ }
+
+ static void ps3vram_init_ring(struct mtd_info *mtd)
+@@ -135,25 +132,22 @@ static void ps3vram_init_ring(struct mtd_info *mtd)
+ priv->ctrl[CTRL_GET] = FIFO_BASE + FIFO_OFFSET;
+ }
+
+-static int ps3vram_wait_ring(struct mtd_info *mtd, int timeout)
++static int ps3vram_wait_ring(struct mtd_info *mtd, unsigned int timeout_ms)
+ {
+ struct ps3vram_priv *priv = mtd->priv;
++ unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
+
+- /* wait until setup commands are processed */
+- timeout *= 1000;
+- while (--timeout) {
++ do {
+ if (priv->ctrl[CTRL_PUT] == priv->ctrl[CTRL_GET])
+- break;
+- udelay(1);
+- }
+- if (timeout == 0) {
+- dev_dbg(priv->dev, "%s:%d: FIFO timeout (%08x/%08x/%08x)\n",
+- __func__, __LINE__, priv->ctrl[CTRL_PUT],
+- priv->ctrl[CTRL_GET], priv->ctrl[CTRL_TOP]);
+- return -ETIMEDOUT;
+- }
++ return 0;
++ msleep(1);
++ } while (time_before(jiffies, timeout));
+
+- return 0;
++ dev_dbg(priv->dev, "%s:%d: FIFO timeout (%08x/%08x/%08x)\n", __func__,
++ __LINE__, priv->ctrl[CTRL_PUT], priv->ctrl[CTRL_GET],
++ priv->ctrl[CTRL_TOP]);
++
++ return -ETIMEDOUT;
+ }
+
+ static void ps3vram_out_ring(struct ps3vram_priv *priv, u32 data)
+--
+1.6.0.4
+
--- /dev/null
+From 2efd72af0f18860927084df618f7419c82f69be3 Mon Sep 17 00:00:00 2001
+From: Geoff Levand <geoffrey.levand@am.sony.com>
+Date: Wed, 7 Jan 2009 17:22:07 -0800
+Subject: [PATCH] mtd/ps3vram: Use _PAGE_NO_CACHE in memory ioremap
+
+Use _PAGE_NO_CACHE for gpu memory ioremap. Also,
+add __iomem attribute to gpu memory pointer and
+change use of memset() to memset_io().
+
+Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+---
+ drivers/mtd/devices/ps3vram.c | 14 ++++++++------
+ 1 files changed, 8 insertions(+), 6 deletions(-)
+
+diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c
+index d592414..d21e9be 100644
+--- a/drivers/mtd/devices/ps3vram.c
++++ b/drivers/mtd/devices/ps3vram.c
+@@ -6,6 +6,7 @@
+ */
+
+ #include <linux/io.h>
++#include <linux/mm.h>
+ #include <linux/init.h>
+ #include <linux/kernel.h>
+ #include <linux/list.h>
+@@ -69,7 +70,7 @@ struct ps3vram_priv {
+ u64 context_handle;
+ u32 *ctrl;
+ u32 *reports;
+- u8 *base;
++ u8 __iomem *ddr_base;
+ u8 *xdr_buf;
+
+ u32 *fifo_base;
+@@ -425,7 +426,7 @@ static int ps3vram_erase(struct mtd_info *mtd, struct erase_info *instr)
+ ps3vram_cache_flush(mtd);
+
+ /* Set bytes to 0xFF */
+- memset(priv->base + instr->addr, 0xFF, instr->len);
++ memset_io(priv->ddr_base + instr->addr, 0xFF, instr->len);
+
+ mutex_unlock(&priv->lock);
+
+@@ -628,8 +629,9 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+ goto out_free_context;
+ }
+
+- priv->base = ioremap(ddr_lpar, ddr_size);
+- if (!priv->base) {
++ priv->ddr_base = ioremap_flags(ddr_lpar, ddr_size, _PAGE_NO_CACHE);
++
++ if (!priv->ddr_base) {
+ dev_err(&dev->core, "%s:%d: ioremap failed\n", __func__,
+ __LINE__);
+ ret = -ENOMEM;
+@@ -702,7 +704,7 @@ out_unmap_reports:
+ out_unmap_ctrl:
+ iounmap(priv->ctrl);
+ out_unmap_vram:
+- iounmap(priv->base);
++ iounmap(priv->ddr_base);
+ out_free_context:
+ lv1_gpu_context_free(priv->context_handle);
+ out_free_memory:
+@@ -728,7 +730,7 @@ static int ps3vram_shutdown(struct ps3_system_bus_device *dev)
+ ps3vram_cache_cleanup(&ps3vram_mtd);
+ iounmap(priv->reports);
+ iounmap(priv->ctrl);
+- iounmap(priv->base);
++ iounmap(priv->ddr_base);
+ lv1_gpu_context_free(priv->context_handle);
+ lv1_gpu_memory_free(priv->memory_handle);
+ ps3_close_hv_device(dev);
+--
+1.6.0.4
+
--- /dev/null
+From 0047656e2a97d4452dd7df9e52591a7afe21a263 Mon Sep 17 00:00:00 2001
+From: Geoff Levand <geoffrey.levand@am.sony.com>
+Date: Thu, 12 Feb 2009 12:36:16 +0000
+Subject: [PATCH] powerpc/ps3: Move ps3_mm_add_memory to device_initcall
+
+Change the PS3 hotplug memory routine ps3_mm_add_memory() from
+a core_initcall to a device_initcall.
+
+core_initcall routines run before the powerpc topology_init()
+startup routine, which is a subsys_initcall, resulting in
+failure of ps3_mm_add_memory() when CONFIG_NUMA=y. When
+ps3_mm_add_memory() fails the system will boot with just the
+128 MiB of boot memory
+
+Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+---
+ arch/powerpc/platforms/ps3/mm.c | 2 +-
+ 1 files changed, 1 insertions(+), 1 deletions(-)
+
+diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
+index 67de6bf..d281cc0 100644
+--- a/arch/powerpc/platforms/ps3/mm.c
++++ b/arch/powerpc/platforms/ps3/mm.c
+@@ -328,7 +328,7 @@ static int __init ps3_mm_add_memory(void)
+ return result;
+ }
+
+-core_initcall(ps3_mm_add_memory);
++device_initcall(ps3_mm_add_memory);
+
+ /*============================================================================*/
+ /* dma routines */
+--
+1.6.0.4
+
--- /dev/null
+From f507cd22035fdadd5dbb476dd05e9e7ee21c3b84 Mon Sep 17 00:00:00 2001
+From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
+Date: Fri, 6 Mar 2009 02:54:09 +0000
+Subject: [PATCH] ps3/block: Replace mtd/ps3vram by block/ps3vram
+
+Convert the PS3 Video RAM Storage Driver from an MTD driver to a plain block
+device driver.
+
+The ps3vram driver exposes unused video RAM on the PS3 as a block device
+suitable for storage or swap. Fast data transfer is achieved using a local
+cache in system RAM and DMA transfers via the GPU.
+
+The new driver is ca. 50% faster for reading, and ca. 10% for writing.
+
+Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
+Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
+Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
+---
+ arch/powerpc/platforms/ps3/Kconfig | 7 +
+ drivers/block/Makefile | 1 +
+ drivers/block/ps3vram.c | 865 ++++++++++++++++++++++++++++++++++++
+ drivers/mtd/devices/Kconfig | 7 -
+ drivers/mtd/devices/Makefile | 1 -
+ drivers/mtd/devices/ps3vram.c | 768 --------------------------------
+ 6 files changed, 873 insertions(+), 776 deletions(-)
+ create mode 100644 drivers/block/ps3vram.c
+ delete mode 100644 drivers/mtd/devices/ps3vram.c
+
+diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig
+index 920cf7a..740ef56 100644
+--- a/arch/powerpc/platforms/ps3/Kconfig
++++ b/arch/powerpc/platforms/ps3/Kconfig
+@@ -128,6 +128,13 @@ config PS3_FLASH
+ be disabled on the kernel command line using "ps3flash=off", to
+ not allocate this fixed buffer.
+
++config PS3_VRAM
++ tristate "PS3 Video RAM Storage Driver"
++ depends on FB_PS3=y && BLOCK && m
++ help
++ This driver allows you to use excess PS3 video RAM as volatile
++ storage or system swap.
++
+ config PS3_LPM
+ tristate "PS3 Logical Performance Monitor support"
+ depends on PPC_PS3
+diff --git a/drivers/block/Makefile b/drivers/block/Makefile
+index 204332b..87e120e 100644
+--- a/drivers/block/Makefile
++++ b/drivers/block/Makefile
+@@ -9,6 +9,7 @@ obj-$(CONFIG_MAC_FLOPPY) += swim3.o
+ obj-$(CONFIG_BLK_DEV_FD) += floppy.o
+ obj-$(CONFIG_AMIGA_FLOPPY) += amiflop.o
+ obj-$(CONFIG_PS3_DISK) += ps3disk.o
++obj-$(CONFIG_PS3_VRAM) += ps3vram.o
+ obj-$(CONFIG_ATARI_FLOPPY) += ataflop.o
+ obj-$(CONFIG_AMIGA_Z2RAM) += z2ram.o
+ obj-$(CONFIG_BLK_DEV_RAM) += brd.o
+diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
+new file mode 100644
+index 0000000..393ed67
+--- /dev/null
++++ b/drivers/block/ps3vram.c
+@@ -0,0 +1,865 @@
++/*
++ * ps3vram - Use extra PS3 video ram as MTD block device.
++ *
++ * Copyright 2009 Sony Corporation
++ *
++ * Based on the MTD ps3vram driver, which is
++ * Copyright (c) 2007-2008 Jim Paris <jim@jtan.com>
++ * Added support RSX DMA Vivien Chappelier <vivien.chappelier@free.fr>
++ */
++
++#include <linux/blkdev.h>
++#include <linux/delay.h>
++#include <linux/proc_fs.h>
++#include <linux/seq_file.h>
++
++#include <asm/firmware.h>
++#include <asm/lv1call.h>
++#include <asm/ps3.h>
++
++
++#define DEVICE_NAME "ps3vram"
++
++
++#define XDR_BUF_SIZE (2 * 1024 * 1024) /* XDR buffer (must be 1MiB aligned) */
++#define XDR_IOIF 0x0c000000
++
++#define FIFO_BASE XDR_IOIF
++#define FIFO_SIZE (64 * 1024)
++
++#define DMA_PAGE_SIZE (4 * 1024)
++
++#define CACHE_PAGE_SIZE (256 * 1024)
++#define CACHE_PAGE_COUNT ((XDR_BUF_SIZE - FIFO_SIZE) / CACHE_PAGE_SIZE)
++
++#define CACHE_OFFSET CACHE_PAGE_SIZE
++#define FIFO_OFFSET 0
++
++#define CTRL_PUT 0x10
++#define CTRL_GET 0x11
++#define CTRL_TOP 0x15
++
++#define UPLOAD_SUBCH 1
++#define DOWNLOAD_SUBCH 2
++
++#define NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN 0x0000030c
++#define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY 0x00000104
++
++#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601
++
++#define CACHE_PAGE_PRESENT 1
++#define CACHE_PAGE_DIRTY 2
++
++struct ps3vram_tag {
++ unsigned int address;
++ unsigned int flags;
++};
++
++struct ps3vram_cache {
++ unsigned int page_count;
++ unsigned int page_size;
++ struct ps3vram_tag *tags;
++ unsigned int hit;
++ unsigned int miss;
++};
++
++struct ps3vram_priv {
++ struct request_queue *queue;
++ struct gendisk *gendisk;
++
++ u64 size;
++
++ u64 memory_handle;
++ u64 context_handle;
++ u32 *ctrl;
++ u32 *reports;
++ u8 __iomem *ddr_base;
++ u8 *xdr_buf;
++
++ u32 *fifo_base;
++ u32 *fifo_ptr;
++
++ struct ps3vram_cache cache;
++
++ /* Used to serialize cache/DMA operations */
++ struct mutex lock;
++};
++
++
++static int ps3vram_major;
++
++
++static struct block_device_operations ps3vram_fops = {
++ .owner = THIS_MODULE,
++};
++
++
++#define DMA_NOTIFIER_HANDLE_BASE 0x66604200 /* first DMA notifier handle */
++#define DMA_NOTIFIER_OFFSET_BASE 0x1000 /* first DMA notifier offset */
++#define DMA_NOTIFIER_SIZE 0x40
++#define NOTIFIER 7 /* notifier used for completion report */
++
++static char *size = "256M";
++module_param(size, charp, 0);
++MODULE_PARM_DESC(size, "memory size");
++
++static u32 *ps3vram_get_notifier(u32 *reports, int notifier)
++{
++ return (void *)reports + DMA_NOTIFIER_OFFSET_BASE +
++ DMA_NOTIFIER_SIZE * notifier;
++}
++
++static void ps3vram_notifier_reset(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++ u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
++ int i;
++
++ for (i = 0; i < 4; i++)
++ notify[i] = 0xffffffff;
++}
++
++static int ps3vram_notifier_wait(struct ps3_system_bus_device *dev,
++ unsigned int timeout_ms)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++ u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
++ unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
++
++ do {
++ if (!notify[3])
++ return 0;
++ msleep(1);
++ } while (time_before(jiffies, timeout));
++
++ return -ETIMEDOUT;
++}
++
++static void ps3vram_init_ring(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++
++ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET;
++ priv->ctrl[CTRL_GET] = FIFO_BASE + FIFO_OFFSET;
++}
++
++static int ps3vram_wait_ring(struct ps3_system_bus_device *dev,
++ unsigned int timeout_ms)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++ unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
++
++ do {
++ if (priv->ctrl[CTRL_PUT] == priv->ctrl[CTRL_GET])
++ return 0;
++ msleep(1);
++ } while (time_before(jiffies, timeout));
++
++ dev_warn(&dev->core, "FIFO timeout (%08x/%08x/%08x)\n",
++ priv->ctrl[CTRL_PUT], priv->ctrl[CTRL_GET],
++ priv->ctrl[CTRL_TOP]);
++
++ return -ETIMEDOUT;
++}
++
++static void ps3vram_out_ring(struct ps3vram_priv *priv, u32 data)
++{
++ *(priv->fifo_ptr)++ = data;
++}
++
++static void ps3vram_begin_ring(struct ps3vram_priv *priv, u32 chan, u32 tag,
++ u32 size)
++{
++ ps3vram_out_ring(priv, (size << 18) | (chan << 13) | tag);
++}
++
++static void ps3vram_rewind_ring(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++ int status;
++
++ ps3vram_out_ring(priv, 0x20000000 | (FIFO_BASE + FIFO_OFFSET));
++
++ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET;
++
++ /* asking the HV for a blit will kick the FIFO */
++ status = lv1_gpu_context_attribute(priv->context_handle,
++ L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT, 0,
++ 0, 0, 0);
++ if (status)
++ dev_err(&dev->core,
++ "%s: lv1_gpu_context_attribute failed %d\n", __func__,
++ status);
++
++ priv->fifo_ptr = priv->fifo_base;
++}
++
++static void ps3vram_fire_ring(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++ int status;
++
++ mutex_lock(&ps3_gpu_mutex);
++
++ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET +
++ (priv->fifo_ptr - priv->fifo_base) * sizeof(u32);
++
++ /* asking the HV for a blit will kick the FIFO */
++ status = lv1_gpu_context_attribute(priv->context_handle,
++ L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT, 0,
++ 0, 0, 0);
++ if (status)
++ dev_err(&dev->core,
++ "%s: lv1_gpu_context_attribute failed %d\n", __func__,
++ status);
++
++ if ((priv->fifo_ptr - priv->fifo_base) * sizeof(u32) >
++ FIFO_SIZE - 1024) {
++ dev_dbg(&dev->core, "FIFO full, rewinding\n");
++ ps3vram_wait_ring(dev, 200);
++ ps3vram_rewind_ring(dev);
++ }
++
++ mutex_unlock(&ps3_gpu_mutex);
++}
++
++static void ps3vram_bind(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++
++ ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0, 1);
++ ps3vram_out_ring(priv, 0x31337303);
++ ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0x180, 3);
++ ps3vram_out_ring(priv, DMA_NOTIFIER_HANDLE_BASE + NOTIFIER);
++ ps3vram_out_ring(priv, 0xfeed0001); /* DMA system RAM instance */
++ ps3vram_out_ring(priv, 0xfeed0000); /* DMA video RAM instance */
++
++ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0, 1);
++ ps3vram_out_ring(priv, 0x3137c0de);
++ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0x180, 3);
++ ps3vram_out_ring(priv, DMA_NOTIFIER_HANDLE_BASE + NOTIFIER);
++ ps3vram_out_ring(priv, 0xfeed0000); /* DMA video RAM instance */
++ ps3vram_out_ring(priv, 0xfeed0001); /* DMA system RAM instance */
++
++ ps3vram_fire_ring(dev);
++}
++
++static int ps3vram_upload(struct ps3_system_bus_device *dev,
++ unsigned int src_offset, unsigned int dst_offset,
++ int len, int count)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++
++ ps3vram_begin_ring(priv, UPLOAD_SUBCH,
++ NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
++ ps3vram_out_ring(priv, XDR_IOIF + src_offset);
++ ps3vram_out_ring(priv, dst_offset);
++ ps3vram_out_ring(priv, len);
++ ps3vram_out_ring(priv, len);
++ ps3vram_out_ring(priv, len);
++ ps3vram_out_ring(priv, count);
++ ps3vram_out_ring(priv, (1 << 8) | 1);
++ ps3vram_out_ring(priv, 0);
++
++ ps3vram_notifier_reset(dev);
++ ps3vram_begin_ring(priv, UPLOAD_SUBCH,
++ NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY, 1);
++ ps3vram_out_ring(priv, 0);
++ ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0x100, 1);
++ ps3vram_out_ring(priv, 0);
++ ps3vram_fire_ring(dev);
++ if (ps3vram_notifier_wait(dev, 200) < 0) {
++ dev_warn(&dev->core, "%s: Notifier timeout\n", __func__);
++ return -1;
++ }
++
++ return 0;
++}
++
++static int ps3vram_download(struct ps3_system_bus_device *dev,
++ unsigned int src_offset, unsigned int dst_offset,
++ int len, int count)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++
++ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH,
++ NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
++ ps3vram_out_ring(priv, src_offset);
++ ps3vram_out_ring(priv, XDR_IOIF + dst_offset);
++ ps3vram_out_ring(priv, len);
++ ps3vram_out_ring(priv, len);
++ ps3vram_out_ring(priv, len);
++ ps3vram_out_ring(priv, count);
++ ps3vram_out_ring(priv, (1 << 8) | 1);
++ ps3vram_out_ring(priv, 0);
++
++ ps3vram_notifier_reset(dev);
++ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH,
++ NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY, 1);
++ ps3vram_out_ring(priv, 0);
++ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0x100, 1);
++ ps3vram_out_ring(priv, 0);
++ ps3vram_fire_ring(dev);
++ if (ps3vram_notifier_wait(dev, 200) < 0) {
++ dev_warn(&dev->core, "%s: Notifier timeout\n", __func__);
++ return -1;
++ }
++
++ return 0;
++}
++
++static void ps3vram_cache_evict(struct ps3_system_bus_device *dev, int entry)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++ struct ps3vram_cache *cache = &priv->cache;
++
++ if (!(cache->tags[entry].flags & CACHE_PAGE_DIRTY))
++ return;
++
++ dev_dbg(&dev->core, "Flushing %d: 0x%08x\n", entry,
++ cache->tags[entry].address);
++ if (ps3vram_upload(dev, CACHE_OFFSET + entry * cache->page_size,
++ cache->tags[entry].address, DMA_PAGE_SIZE,
++ cache->page_size / DMA_PAGE_SIZE) < 0) {
++ dev_err(&dev->core,
++ "Failed to upload from 0x%x to " "0x%x size 0x%x\n",
++ entry * cache->page_size, cache->tags[entry].address,
++ cache->page_size);
++ }
++ cache->tags[entry].flags &= ~CACHE_PAGE_DIRTY;
++}
++
++static void ps3vram_cache_load(struct ps3_system_bus_device *dev, int entry,
++ unsigned int address)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++ struct ps3vram_cache *cache = &priv->cache;
++
++ dev_dbg(&dev->core, "Fetching %d: 0x%08x\n", entry, address);
++ if (ps3vram_download(dev, address,
++ CACHE_OFFSET + entry * cache->page_size,
++ DMA_PAGE_SIZE,
++ cache->page_size / DMA_PAGE_SIZE) < 0) {
++ dev_err(&dev->core,
++ "Failed to download from 0x%x to 0x%x size 0x%x\n",
++ address, entry * cache->page_size, cache->page_size);
++ }
++
++ cache->tags[entry].address = address;
++ cache->tags[entry].flags |= CACHE_PAGE_PRESENT;
++}
++
++
++static void ps3vram_cache_flush(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++ struct ps3vram_cache *cache = &priv->cache;
++ int i;
++
++ dev_dbg(&dev->core, "FLUSH\n");
++ for (i = 0; i < cache->page_count; i++) {
++ ps3vram_cache_evict(dev, i);
++ cache->tags[i].flags = 0;
++ }
++}
++
++static unsigned int ps3vram_cache_match(struct ps3_system_bus_device *dev,
++ loff_t address)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++ struct ps3vram_cache *cache = &priv->cache;
++ unsigned int base;
++ unsigned int offset;
++ int i;
++ static int counter;
++
++ offset = (unsigned int) (address & (cache->page_size - 1));
++ base = (unsigned int) (address - offset);
++
++ /* fully associative check */
++ for (i = 0; i < cache->page_count; i++) {
++ if ((cache->tags[i].flags & CACHE_PAGE_PRESENT) &&
++ cache->tags[i].address == base) {
++ cache->hit++;
++ dev_dbg(&dev->core, "Found entry %d: 0x%08x\n", i,
++ cache->tags[i].address);
++ return i;
++ }
++ }
++
++ /* choose a random entry */
++ i = (jiffies + (counter++)) % cache->page_count;
++ dev_dbg(&dev->core, "Using entry %d\n", i);
++
++ ps3vram_cache_evict(dev, i);
++ ps3vram_cache_load(dev, i, base);
++
++ cache->miss++;
++ return i;
++}
++
++static int ps3vram_cache_init(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++
++ priv->cache.page_count = CACHE_PAGE_COUNT;
++ priv->cache.page_size = CACHE_PAGE_SIZE;
++ priv->cache.tags = kzalloc(sizeof(struct ps3vram_tag) *
++ CACHE_PAGE_COUNT, GFP_KERNEL);
++ if (priv->cache.tags == NULL) {
++ dev_err(&dev->core, "Could not allocate cache tags\n");
++ return -ENOMEM;
++ }
++
++ dev_info(&dev->core, "Created ram cache: %d entries, %d KiB each\n",
++ CACHE_PAGE_COUNT, CACHE_PAGE_SIZE / 1024);
++
++ return 0;
++}
++
++static void ps3vram_cache_cleanup(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++
++ ps3vram_cache_flush(dev);
++ kfree(priv->cache.tags);
++}
++
++static int ps3vram_read(struct ps3_system_bus_device *dev, loff_t from,
++ size_t len, size_t *retlen, u_char *buf)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++ unsigned int cached, count;
++
++ dev_dbg(&dev->core, "%s: from=0x%08x len=0x%zx\n", __func__,
++ (unsigned int)from, len);
++
++ if (from >= priv->size)
++ return -EIO;
++
++ if (len > priv->size - from)
++ len = priv->size - from;
++
++ /* Copy from vram to buf */
++ count = len;
++ while (count) {
++ unsigned int offset, avail;
++ unsigned int entry;
++
++ offset = (unsigned int) (from & (priv->cache.page_size - 1));
++ avail = priv->cache.page_size - offset;
++
++ mutex_lock(&priv->lock);
++
++ entry = ps3vram_cache_match(dev, from);
++ cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
++
++ dev_dbg(&dev->core, "%s: from=%08x cached=%08x offset=%08x "
++ "avail=%08x count=%08x\n", __func__,
++ (unsigned int)from, cached, offset, avail, count);
++
++ if (avail > count)
++ avail = count;
++ memcpy(buf, priv->xdr_buf + cached, avail);
++
++ mutex_unlock(&priv->lock);
++
++ buf += avail;
++ count -= avail;
++ from += avail;
++ }
++
++ *retlen = len;
++ return 0;
++}
++
++static int ps3vram_write(struct ps3_system_bus_device *dev, loff_t to,
++ size_t len, size_t *retlen, const u_char *buf)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++ unsigned int cached, count;
++
++ if (to >= priv->size)
++ return -EIO;
++
++ if (len > priv->size - to)
++ len = priv->size - to;
++
++ /* Copy from buf to vram */
++ count = len;
++ while (count) {
++ unsigned int offset, avail;
++ unsigned int entry;
++
++ offset = (unsigned int) (to & (priv->cache.page_size - 1));
++ avail = priv->cache.page_size - offset;
++
++ mutex_lock(&priv->lock);
++
++ entry = ps3vram_cache_match(dev, to);
++ cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
++
++ dev_dbg(&dev->core, "%s: to=%08x cached=%08x offset=%08x "
++ "avail=%08x count=%08x\n", __func__, (unsigned int)to,
++ cached, offset, avail, count);
++
++ if (avail > count)
++ avail = count;
++ memcpy(priv->xdr_buf + cached, buf, avail);
++
++ priv->cache.tags[entry].flags |= CACHE_PAGE_DIRTY;
++
++ mutex_unlock(&priv->lock);
++
++ buf += avail;
++ count -= avail;
++ to += avail;
++ }
++
++ *retlen = len;
++ return 0;
++}
++
++static int ps3vram_proc_show(struct seq_file *m, void *v)
++{
++ struct ps3vram_priv *priv = m->private;
++
++ seq_printf(m, "hit:%u\nmiss:%u\n", priv->cache.hit, priv->cache.miss);
++ return 0;
++}
++
++static int ps3vram_proc_open(struct inode *inode, struct file *file)
++{
++ return single_open(file, ps3vram_proc_show, PDE(inode)->data);
++}
++
++static const struct file_operations ps3vram_proc_fops = {
++ .owner = THIS_MODULE,
++ .open = ps3vram_proc_open,
++ .read = seq_read,
++ .llseek = seq_lseek,
++ .release = single_release,
++};
++
++static void __devinit ps3vram_proc_init(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++ struct proc_dir_entry *pde;
++
++ pde = proc_create(DEVICE_NAME, 0444, NULL, &ps3vram_proc_fops);
++ if (!pde) {
++ dev_warn(&dev->core, "failed to create /proc entry\n");
++ return;
++ }
++
++ pde->owner = THIS_MODULE;
++ pde->data = priv;
++}
++
++static int ps3vram_make_request(struct request_queue *q, struct bio *bio)
++{
++ struct ps3_system_bus_device *dev = q->queuedata;
++ int write = bio_data_dir(bio) == WRITE;
++ const char *op = write ? "write" : "read";
++ loff_t offset = bio->bi_sector << 9;
++ int error = 0;
++ struct bio_vec *bvec;
++ unsigned int i;
++
++ dev_dbg(&dev->core, "%s\n", __func__);
++
++ bio_for_each_segment(bvec, bio, i) {
++ /* PS3 is ppc64, so we don't handle highmem */
++ char *ptr = page_address(bvec->bv_page) + bvec->bv_offset;
++ size_t len = bvec->bv_len, retlen;
++
++ dev_dbg(&dev->core, " %s %zu bytes at offset %llu\n", op,
++ len, offset);
++ if (write)
++ error = ps3vram_write(dev, offset, len, &retlen, ptr);
++ else
++ error = ps3vram_read(dev, offset, len, &retlen, ptr);
++
++ if (error) {
++ dev_err(&dev->core, "%s failed\n", op);
++ goto out;
++ }
++
++ if (retlen != len) {
++ dev_err(&dev->core, "Short %s\n", op);
++ goto out;
++ }
++
++ offset += len;
++ }
++
++ dev_dbg(&dev->core, "%s completed\n", op);
++
++out:
++ bio_endio(bio, error);
++ return 0;
++}
++
++static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv;
++ int error, status;
++ struct request_queue *queue;
++ struct gendisk *gendisk;
++ u64 ddr_lpar, ctrl_lpar, info_lpar, reports_lpar, ddr_size,
++ reports_size;
++ char *rest;
++
++ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
++ if (!priv) {
++ error = -ENOMEM;
++ goto fail;
++ }
++
++ mutex_init(&priv->lock);
++ dev->core.driver_data = priv;
++
++ priv = dev->core.driver_data;
++
++ /* Allocate XDR buffer (1MiB aligned) */
++ priv->xdr_buf = (void *)__get_free_pages(GFP_KERNEL,
++ get_order(XDR_BUF_SIZE));
++ if (priv->xdr_buf == NULL) {
++ dev_err(&dev->core, "Could not allocate XDR buffer\n");
++ error = -ENOMEM;
++ goto fail_free_priv;
++ }
++
++ /* Put FIFO at begginning of XDR buffer */
++ priv->fifo_base = (u32 *) (priv->xdr_buf + FIFO_OFFSET);
++ priv->fifo_ptr = priv->fifo_base;
++
++ /* XXX: Need to open GPU, in case ps3fb or snd_ps3 aren't loaded */
++ if (ps3_open_hv_device(dev)) {
++ dev_err(&dev->core, "ps3_open_hv_device failed\n");
++ error = -EAGAIN;
++ goto out_close_gpu;
++ }
++
++ /* Request memory */
++ status = -1;
++ ddr_size = ALIGN(memparse(size, &rest), 1024*1024);
++ if (!ddr_size) {
++ dev_err(&dev->core, "Specified size is too small\n");
++ error = -EINVAL;
++ goto out_close_gpu;
++ }
++
++ while (ddr_size > 0) {
++ status = lv1_gpu_memory_allocate(ddr_size, 0, 0, 0, 0,
++ &priv->memory_handle,
++ &ddr_lpar);
++ if (!status)
++ break;
++ ddr_size -= 1024*1024;
++ }
++ if (status) {
++ dev_err(&dev->core, "lv1_gpu_memory_allocate failed %d\n",
++ status);
++ error = -ENOMEM;
++ goto out_free_xdr_buf;
++ }
++
++ /* Request context */
++ status = lv1_gpu_context_allocate(priv->memory_handle, 0,
++ &priv->context_handle, &ctrl_lpar,
++ &info_lpar, &reports_lpar,
++ &reports_size);
++ if (status) {
++ dev_err(&dev->core, "lv1_gpu_context_allocate failed %d\n",
++ status);
++ error = -ENOMEM;
++ goto out_free_memory;
++ }
++
++ /* Map XDR buffer to RSX */
++ status = lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF,
++ ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)),
++ XDR_BUF_SIZE, 0);
++ if (status) {
++ dev_err(&dev->core, "lv1_gpu_context_iomap failed %d\n",
++ status);
++ error = -ENOMEM;
++ goto out_free_context;
++ }
++
++ priv->ddr_base = ioremap_flags(ddr_lpar, ddr_size, _PAGE_NO_CACHE);
++
++ if (!priv->ddr_base) {
++ dev_err(&dev->core, "ioremap DDR failed\n");
++ error = -ENOMEM;
++ goto out_free_context;
++ }
++
++ priv->ctrl = ioremap(ctrl_lpar, 64 * 1024);
++ if (!priv->ctrl) {
++ dev_err(&dev->core, "ioremap CTRL failed\n");
++ error = -ENOMEM;
++ goto out_unmap_vram;
++ }
++
++ priv->reports = ioremap(reports_lpar, reports_size);
++ if (!priv->reports) {
++ dev_err(&dev->core, "ioremap REPORTS failed\n");
++ error = -ENOMEM;
++ goto out_unmap_ctrl;
++ }
++
++ mutex_lock(&ps3_gpu_mutex);
++ ps3vram_init_ring(dev);
++ mutex_unlock(&ps3_gpu_mutex);
++
++ priv->size = ddr_size;
++
++ ps3vram_bind(dev);
++
++ mutex_lock(&ps3_gpu_mutex);
++ error = ps3vram_wait_ring(dev, 100);
++ mutex_unlock(&ps3_gpu_mutex);
++ if (error < 0) {
++ dev_err(&dev->core, "Failed to initialize channels\n");
++ error = -ETIMEDOUT;
++ goto out_unmap_reports;
++ }
++
++ ps3vram_cache_init(dev);
++ ps3vram_proc_init(dev);
++
++ queue = blk_alloc_queue(GFP_KERNEL);
++ if (!queue) {
++ dev_err(&dev->core, "blk_alloc_queue failed\n");
++ error = -ENOMEM;
++ goto out_cache_cleanup;
++ }
++
++ priv->queue = queue;
++ queue->queuedata = dev;
++ blk_queue_make_request(queue, ps3vram_make_request);
++ blk_queue_max_phys_segments(queue, MAX_PHYS_SEGMENTS);
++ blk_queue_max_hw_segments(queue, MAX_HW_SEGMENTS);
++ blk_queue_max_segment_size(queue, MAX_SEGMENT_SIZE);
++ blk_queue_max_sectors(queue, SAFE_MAX_SECTORS);
++
++ gendisk = alloc_disk(1);
++ if (!gendisk) {
++ dev_err(&dev->core, "alloc_disk failed\n");
++ error = -ENOMEM;
++ goto fail_cleanup_queue;
++ }
++
++ priv->gendisk = gendisk;
++ gendisk->major = ps3vram_major;
++ gendisk->first_minor = 0;
++ gendisk->fops = &ps3vram_fops;
++ gendisk->queue = queue;
++ gendisk->private_data = dev;
++ gendisk->driverfs_dev = &dev->core;
++ strlcpy(gendisk->disk_name, DEVICE_NAME, sizeof(gendisk->disk_name));
++ set_capacity(gendisk, priv->size >> 9);
++
++ dev_info(&dev->core, "%s: Using %lu MiB of GPU memory\n",
++ gendisk->disk_name, get_capacity(gendisk) >> 11);
++
++ add_disk(gendisk);
++ return 0;
++
++fail_cleanup_queue:
++ blk_cleanup_queue(queue);
++out_cache_cleanup:
++ remove_proc_entry(DEVICE_NAME, NULL);
++ ps3vram_cache_cleanup(dev);
++out_unmap_reports:
++ iounmap(priv->reports);
++out_unmap_ctrl:
++ iounmap(priv->ctrl);
++out_unmap_vram:
++ iounmap(priv->ddr_base);
++out_free_context:
++ lv1_gpu_context_free(priv->context_handle);
++out_free_memory:
++ lv1_gpu_memory_free(priv->memory_handle);
++out_close_gpu:
++ ps3_close_hv_device(dev);
++out_free_xdr_buf:
++ free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE));
++fail_free_priv:
++ kfree(priv);
++ dev->core.driver_data = NULL;
++fail:
++ return error;
++}
++
++static int ps3vram_remove(struct ps3_system_bus_device *dev)
++{
++ struct ps3vram_priv *priv = dev->core.driver_data;
++
++ del_gendisk(priv->gendisk);
++ put_disk(priv->gendisk);
++ blk_cleanup_queue(priv->queue);
++ remove_proc_entry(DEVICE_NAME, NULL);
++ ps3vram_cache_cleanup(dev);
++ iounmap(priv->reports);
++ iounmap(priv->ctrl);
++ iounmap(priv->ddr_base);
++ lv1_gpu_context_free(priv->context_handle);
++ lv1_gpu_memory_free(priv->memory_handle);
++ ps3_close_hv_device(dev);
++ free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE));
++ kfree(priv);
++ dev->core.driver_data = NULL;
++ return 0;
++}
++
++static struct ps3_system_bus_driver ps3vram = {
++ .match_id = PS3_MATCH_ID_GPU,
++ .match_sub_id = PS3_MATCH_SUB_ID_GPU_RAMDISK,
++ .core.name = DEVICE_NAME,
++ .core.owner = THIS_MODULE,
++ .probe = ps3vram_probe,
++ .remove = ps3vram_remove,
++ .shutdown = ps3vram_remove,
++};
++
++
++static int __init ps3vram_init(void)
++{
++ int error;
++
++ if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
++ return -ENODEV;
++
++ error = register_blkdev(0, DEVICE_NAME);
++ if (error <= 0) {
++ pr_err("%s: register_blkdev failed %d\n", DEVICE_NAME, error);
++ return error;
++ }
++ ps3vram_major = error;
++
++ pr_info("%s: registered block device major %d\n", DEVICE_NAME,
++ ps3vram_major);
++
++ error = ps3_system_bus_driver_register(&ps3vram);
++ if (error)
++ unregister_blkdev(ps3vram_major, DEVICE_NAME);
++
++ return error;
++}
++
++static void __exit ps3vram_exit(void)
++{
++ ps3_system_bus_driver_unregister(&ps3vram);
++ unregister_blkdev(ps3vram_major, DEVICE_NAME);
++}
++
++module_init(ps3vram_init);
++module_exit(ps3vram_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("PS3 Video RAM Storage Driver");
++MODULE_AUTHOR("Sony Corporation");
++MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_RAMDISK);
+diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
+index bc33200..6fde0a2 100644
+--- a/drivers/mtd/devices/Kconfig
++++ b/drivers/mtd/devices/Kconfig
+@@ -120,13 +120,6 @@ config MTD_PHRAM
+ doesn't have access to, memory beyond the mem=xxx limit, nvram,
+ memory on the video card, etc...
+
+-config MTD_PS3VRAM
+- tristate "PS3 video RAM"
+- depends on FB_PS3
+- help
+- This driver allows you to use excess PS3 video RAM as volatile
+- storage or system swap.
+-
+ config MTD_LART
+ tristate "28F160xx flash driver for LART"
+ depends on SA1100_LART
+diff --git a/drivers/mtd/devices/Makefile b/drivers/mtd/devices/Makefile
+index e51521d..0993d5c 100644
+--- a/drivers/mtd/devices/Makefile
++++ b/drivers/mtd/devices/Makefile
+@@ -16,4 +16,3 @@ obj-$(CONFIG_MTD_LART) += lart.o
+ obj-$(CONFIG_MTD_BLOCK2MTD) += block2mtd.o
+ obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o
+ obj-$(CONFIG_MTD_M25P80) += m25p80.o
+-obj-$(CONFIG_MTD_PS3VRAM) += ps3vram.o
+diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c
+deleted file mode 100644
+index d21e9be..0000000
+--- a/drivers/mtd/devices/ps3vram.c
++++ /dev/null
+@@ -1,768 +0,0 @@
+-/**
+- * ps3vram - Use extra PS3 video ram as MTD block device.
+- *
+- * Copyright (c) 2007-2008 Jim Paris <jim@jtan.com>
+- * Added support RSX DMA Vivien Chappelier <vivien.chappelier@free.fr>
+- */
+-
+-#include <linux/io.h>
+-#include <linux/mm.h>
+-#include <linux/init.h>
+-#include <linux/kernel.h>
+-#include <linux/list.h>
+-#include <linux/module.h>
+-#include <linux/moduleparam.h>
+-#include <linux/slab.h>
+-#include <linux/version.h>
+-#include <linux/gfp.h>
+-#include <linux/delay.h>
+-#include <linux/mtd/mtd.h>
+-
+-#include <asm/lv1call.h>
+-#include <asm/ps3.h>
+-
+-#define DEVICE_NAME "ps3vram"
+-
+-#define XDR_BUF_SIZE (2 * 1024 * 1024) /* XDR buffer (must be 1MiB aligned) */
+-#define XDR_IOIF 0x0c000000
+-
+-#define FIFO_BASE XDR_IOIF
+-#define FIFO_SIZE (64 * 1024)
+-
+-#define DMA_PAGE_SIZE (4 * 1024)
+-
+-#define CACHE_PAGE_SIZE (256 * 1024)
+-#define CACHE_PAGE_COUNT ((XDR_BUF_SIZE - FIFO_SIZE) / CACHE_PAGE_SIZE)
+-
+-#define CACHE_OFFSET CACHE_PAGE_SIZE
+-#define FIFO_OFFSET 0
+-
+-#define CTRL_PUT 0x10
+-#define CTRL_GET 0x11
+-#define CTRL_TOP 0x15
+-
+-#define UPLOAD_SUBCH 1
+-#define DOWNLOAD_SUBCH 2
+-
+-#define NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN 0x0000030c
+-#define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY 0x00000104
+-
+-#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601
+-
+-struct mtd_info ps3vram_mtd;
+-
+-#define CACHE_PAGE_PRESENT 1
+-#define CACHE_PAGE_DIRTY 2
+-
+-struct ps3vram_tag {
+- unsigned int address;
+- unsigned int flags;
+-};
+-
+-struct ps3vram_cache {
+- unsigned int page_count;
+- unsigned int page_size;
+- struct ps3vram_tag *tags;
+-};
+-
+-struct ps3vram_priv {
+- u64 memory_handle;
+- u64 context_handle;
+- u32 *ctrl;
+- u32 *reports;
+- u8 __iomem *ddr_base;
+- u8 *xdr_buf;
+-
+- u32 *fifo_base;
+- u32 *fifo_ptr;
+-
+- struct device *dev;
+- struct ps3vram_cache cache;
+-
+- /* Used to serialize cache/DMA operations */
+- struct mutex lock;
+-};
+-
+-#define DMA_NOTIFIER_HANDLE_BASE 0x66604200 /* first DMA notifier handle */
+-#define DMA_NOTIFIER_OFFSET_BASE 0x1000 /* first DMA notifier offset */
+-#define DMA_NOTIFIER_SIZE 0x40
+-#define NOTIFIER 7 /* notifier used for completion report */
+-
+-/* A trailing '-' means to subtract off ps3fb_videomemory.size */
+-char *size = "256M-";
+-module_param(size, charp, 0);
+-MODULE_PARM_DESC(size, "memory size");
+-
+-static u32 *ps3vram_get_notifier(u32 *reports, int notifier)
+-{
+- return (void *) reports +
+- DMA_NOTIFIER_OFFSET_BASE +
+- DMA_NOTIFIER_SIZE * notifier;
+-}
+-
+-static void ps3vram_notifier_reset(struct mtd_info *mtd)
+-{
+- int i;
+-
+- struct ps3vram_priv *priv = mtd->priv;
+- u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
+- for (i = 0; i < 4; i++)
+- notify[i] = 0xffffffff;
+-}
+-
+-static int ps3vram_notifier_wait(struct mtd_info *mtd, unsigned int timeout_ms)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+- u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
+- unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
+-
+- do {
+- if (!notify[3])
+- return 0;
+- msleep(1);
+- } while (time_before(jiffies, timeout));
+-
+- return -ETIMEDOUT;
+-}
+-
+-static void ps3vram_init_ring(struct mtd_info *mtd)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+-
+- priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET;
+- priv->ctrl[CTRL_GET] = FIFO_BASE + FIFO_OFFSET;
+-}
+-
+-static int ps3vram_wait_ring(struct mtd_info *mtd, unsigned int timeout_ms)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+- unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
+-
+- do {
+- if (priv->ctrl[CTRL_PUT] == priv->ctrl[CTRL_GET])
+- return 0;
+- msleep(1);
+- } while (time_before(jiffies, timeout));
+-
+- dev_dbg(priv->dev, "%s:%d: FIFO timeout (%08x/%08x/%08x)\n", __func__,
+- __LINE__, priv->ctrl[CTRL_PUT], priv->ctrl[CTRL_GET],
+- priv->ctrl[CTRL_TOP]);
+-
+- return -ETIMEDOUT;
+-}
+-
+-static void ps3vram_out_ring(struct ps3vram_priv *priv, u32 data)
+-{
+- *(priv->fifo_ptr)++ = data;
+-}
+-
+-static void ps3vram_begin_ring(struct ps3vram_priv *priv, u32 chan,
+- u32 tag, u32 size)
+-{
+- ps3vram_out_ring(priv, (size << 18) | (chan << 13) | tag);
+-}
+-
+-static void ps3vram_rewind_ring(struct mtd_info *mtd)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+- u64 status;
+-
+- ps3vram_out_ring(priv, 0x20000000 | (FIFO_BASE + FIFO_OFFSET));
+-
+- priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET;
+-
+- /* asking the HV for a blit will kick the fifo */
+- status = lv1_gpu_context_attribute(priv->context_handle,
+- L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
+- 0, 0, 0, 0);
+- if (status)
+- dev_err(priv->dev, "%s:%d: lv1_gpu_context_attribute failed\n",
+- __func__, __LINE__);
+-
+- priv->fifo_ptr = priv->fifo_base;
+-}
+-
+-static void ps3vram_fire_ring(struct mtd_info *mtd)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+- u64 status;
+-
+- mutex_lock(&ps3_gpu_mutex);
+-
+- priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET +
+- (priv->fifo_ptr - priv->fifo_base) * sizeof(u32);
+-
+- /* asking the HV for a blit will kick the fifo */
+- status = lv1_gpu_context_attribute(priv->context_handle,
+- L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
+- 0, 0, 0, 0);
+- if (status)
+- dev_err(priv->dev, "%s:%d: lv1_gpu_context_attribute failed\n",
+- __func__, __LINE__);
+-
+- if ((priv->fifo_ptr - priv->fifo_base) * sizeof(u32) >
+- FIFO_SIZE - 1024) {
+- dev_dbg(priv->dev, "%s:%d: fifo full, rewinding\n", __func__,
+- __LINE__);
+- ps3vram_wait_ring(mtd, 200);
+- ps3vram_rewind_ring(mtd);
+- }
+-
+- mutex_unlock(&ps3_gpu_mutex);
+-}
+-
+-static void ps3vram_bind(struct mtd_info *mtd)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+-
+- ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0, 1);
+- ps3vram_out_ring(priv, 0x31337303);
+- ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0x180, 3);
+- ps3vram_out_ring(priv, DMA_NOTIFIER_HANDLE_BASE + NOTIFIER);
+- ps3vram_out_ring(priv, 0xfeed0001); /* DMA system RAM instance */
+- ps3vram_out_ring(priv, 0xfeed0000); /* DMA video RAM instance */
+-
+- ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0, 1);
+- ps3vram_out_ring(priv, 0x3137c0de);
+- ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0x180, 3);
+- ps3vram_out_ring(priv, DMA_NOTIFIER_HANDLE_BASE + NOTIFIER);
+- ps3vram_out_ring(priv, 0xfeed0000); /* DMA video RAM instance */
+- ps3vram_out_ring(priv, 0xfeed0001); /* DMA system RAM instance */
+-
+- ps3vram_fire_ring(mtd);
+-}
+-
+-static int ps3vram_upload(struct mtd_info *mtd, unsigned int src_offset,
+- unsigned int dst_offset, int len, int count)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+-
+- ps3vram_begin_ring(priv, UPLOAD_SUBCH,
+- NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
+- ps3vram_out_ring(priv, XDR_IOIF + src_offset);
+- ps3vram_out_ring(priv, dst_offset);
+- ps3vram_out_ring(priv, len);
+- ps3vram_out_ring(priv, len);
+- ps3vram_out_ring(priv, len);
+- ps3vram_out_ring(priv, count);
+- ps3vram_out_ring(priv, (1 << 8) | 1);
+- ps3vram_out_ring(priv, 0);
+-
+- ps3vram_notifier_reset(mtd);
+- ps3vram_begin_ring(priv, UPLOAD_SUBCH,
+- NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY, 1);
+- ps3vram_out_ring(priv, 0);
+- ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0x100, 1);
+- ps3vram_out_ring(priv, 0);
+- ps3vram_fire_ring(mtd);
+- if (ps3vram_notifier_wait(mtd, 200) < 0) {
+- dev_dbg(priv->dev, "%s:%d: notifier timeout\n", __func__,
+- __LINE__);
+- return -1;
+- }
+-
+- return 0;
+-}
+-
+-static int ps3vram_download(struct mtd_info *mtd, unsigned int src_offset,
+- unsigned int dst_offset, int len, int count)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+-
+- ps3vram_begin_ring(priv, DOWNLOAD_SUBCH,
+- NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
+- ps3vram_out_ring(priv, src_offset);
+- ps3vram_out_ring(priv, XDR_IOIF + dst_offset);
+- ps3vram_out_ring(priv, len);
+- ps3vram_out_ring(priv, len);
+- ps3vram_out_ring(priv, len);
+- ps3vram_out_ring(priv, count);
+- ps3vram_out_ring(priv, (1 << 8) | 1);
+- ps3vram_out_ring(priv, 0);
+-
+- ps3vram_notifier_reset(mtd);
+- ps3vram_begin_ring(priv, DOWNLOAD_SUBCH,
+- NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY, 1);
+- ps3vram_out_ring(priv, 0);
+- ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0x100, 1);
+- ps3vram_out_ring(priv, 0);
+- ps3vram_fire_ring(mtd);
+- if (ps3vram_notifier_wait(mtd, 200) < 0) {
+- dev_dbg(priv->dev, "%s:%d: notifier timeout\n", __func__,
+- __LINE__);
+- return -1;
+- }
+-
+- return 0;
+-}
+-
+-static void ps3vram_cache_evict(struct mtd_info *mtd, int entry)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+- struct ps3vram_cache *cache = &priv->cache;
+-
+- if (cache->tags[entry].flags & CACHE_PAGE_DIRTY) {
+- dev_dbg(priv->dev, "%s:%d: flushing %d : 0x%08x\n", __func__,
+- __LINE__, entry, cache->tags[entry].address);
+- if (ps3vram_upload(mtd,
+- CACHE_OFFSET + entry * cache->page_size,
+- cache->tags[entry].address,
+- DMA_PAGE_SIZE,
+- cache->page_size / DMA_PAGE_SIZE) < 0) {
+- dev_dbg(priv->dev, "%s:%d: failed to upload from "
+- "0x%x to 0x%x size 0x%x\n", __func__, __LINE__,
+- entry * cache->page_size,
+- cache->tags[entry].address, cache->page_size);
+- }
+- cache->tags[entry].flags &= ~CACHE_PAGE_DIRTY;
+- }
+-}
+-
+-static void ps3vram_cache_load(struct mtd_info *mtd, int entry,
+- unsigned int address)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+- struct ps3vram_cache *cache = &priv->cache;
+-
+- dev_dbg(priv->dev, "%s:%d: fetching %d : 0x%08x\n", __func__, __LINE__,
+- entry, address);
+- if (ps3vram_download(mtd,
+- address,
+- CACHE_OFFSET + entry * cache->page_size,
+- DMA_PAGE_SIZE,
+- cache->page_size / DMA_PAGE_SIZE) < 0) {
+- dev_err(priv->dev, "%s:%d: failed to download from "
+- "0x%x to 0x%x size 0x%x\n", __func__, __LINE__, address,
+- entry * cache->page_size, cache->page_size);
+- }
+-
+- cache->tags[entry].address = address;
+- cache->tags[entry].flags |= CACHE_PAGE_PRESENT;
+-}
+-
+-
+-static void ps3vram_cache_flush(struct mtd_info *mtd)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+- struct ps3vram_cache *cache = &priv->cache;
+- int i;
+-
+- dev_dbg(priv->dev, "%s:%d: FLUSH\n", __func__, __LINE__);
+- for (i = 0; i < cache->page_count; i++) {
+- ps3vram_cache_evict(mtd, i);
+- cache->tags[i].flags = 0;
+- }
+-}
+-
+-static unsigned int ps3vram_cache_match(struct mtd_info *mtd, loff_t address)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+- struct ps3vram_cache *cache = &priv->cache;
+- unsigned int base;
+- unsigned int offset;
+- int i;
+- static int counter;
+-
+- offset = (unsigned int) (address & (cache->page_size - 1));
+- base = (unsigned int) (address - offset);
+-
+- /* fully associative check */
+- for (i = 0; i < cache->page_count; i++) {
+- if ((cache->tags[i].flags & CACHE_PAGE_PRESENT) &&
+- cache->tags[i].address == base) {
+- dev_dbg(priv->dev, "%s:%d: found entry %d : 0x%08x\n",
+- __func__, __LINE__, i, cache->tags[i].address);
+- return i;
+- }
+- }
+-
+- /* choose a random entry */
+- i = (jiffies + (counter++)) % cache->page_count;
+- dev_dbg(priv->dev, "%s:%d: using entry %d\n", __func__, __LINE__, i);
+-
+- ps3vram_cache_evict(mtd, i);
+- ps3vram_cache_load(mtd, i, base);
+-
+- return i;
+-}
+-
+-static int ps3vram_cache_init(struct mtd_info *mtd)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+-
+- priv->cache.page_count = CACHE_PAGE_COUNT;
+- priv->cache.page_size = CACHE_PAGE_SIZE;
+- priv->cache.tags = kzalloc(sizeof(struct ps3vram_tag) *
+- CACHE_PAGE_COUNT, GFP_KERNEL);
+- if (priv->cache.tags == NULL) {
+- dev_err(priv->dev, "%s:%d: could not allocate cache tags\n",
+- __func__, __LINE__);
+- return -ENOMEM;
+- }
+-
+- dev_info(priv->dev, "created ram cache: %d entries, %d KiB each\n",
+- CACHE_PAGE_COUNT, CACHE_PAGE_SIZE / 1024);
+-
+- return 0;
+-}
+-
+-static void ps3vram_cache_cleanup(struct mtd_info *mtd)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+-
+- ps3vram_cache_flush(mtd);
+- kfree(priv->cache.tags);
+-}
+-
+-static int ps3vram_erase(struct mtd_info *mtd, struct erase_info *instr)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+-
+- if (instr->addr + instr->len > mtd->size)
+- return -EINVAL;
+-
+- mutex_lock(&priv->lock);
+-
+- ps3vram_cache_flush(mtd);
+-
+- /* Set bytes to 0xFF */
+- memset_io(priv->ddr_base + instr->addr, 0xFF, instr->len);
+-
+- mutex_unlock(&priv->lock);
+-
+- instr->state = MTD_ERASE_DONE;
+- mtd_erase_callback(instr);
+-
+- return 0;
+-}
+-
+-static int ps3vram_read(struct mtd_info *mtd, loff_t from, size_t len,
+- size_t *retlen, u_char *buf)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+- unsigned int cached, count;
+-
+- dev_dbg(priv->dev, "%s:%d: from=0x%08x len=0x%zx\n", __func__, __LINE__,
+- (unsigned int)from, len);
+-
+- if (from >= mtd->size)
+- return -EINVAL;
+-
+- if (len > mtd->size - from)
+- len = mtd->size - from;
+-
+- /* Copy from vram to buf */
+- count = len;
+- while (count) {
+- unsigned int offset, avail;
+- unsigned int entry;
+-
+- offset = (unsigned int) (from & (priv->cache.page_size - 1));
+- avail = priv->cache.page_size - offset;
+-
+- mutex_lock(&priv->lock);
+-
+- entry = ps3vram_cache_match(mtd, from);
+- cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
+-
+- dev_dbg(priv->dev, "%s:%d: from=%08x cached=%08x offset=%08x "
+- "avail=%08x count=%08x\n", __func__, __LINE__,
+- (unsigned int)from, cached, offset, avail, count);
+-
+- if (avail > count)
+- avail = count;
+- memcpy(buf, priv->xdr_buf + cached, avail);
+-
+- mutex_unlock(&priv->lock);
+-
+- buf += avail;
+- count -= avail;
+- from += avail;
+- }
+-
+- *retlen = len;
+- return 0;
+-}
+-
+-static int ps3vram_write(struct mtd_info *mtd, loff_t to, size_t len,
+- size_t *retlen, const u_char *buf)
+-{
+- struct ps3vram_priv *priv = mtd->priv;
+- unsigned int cached, count;
+-
+- if (to >= mtd->size)
+- return -EINVAL;
+-
+- if (len > mtd->size - to)
+- len = mtd->size - to;
+-
+- /* Copy from buf to vram */
+- count = len;
+- while (count) {
+- unsigned int offset, avail;
+- unsigned int entry;
+-
+- offset = (unsigned int) (to & (priv->cache.page_size - 1));
+- avail = priv->cache.page_size - offset;
+-
+- mutex_lock(&priv->lock);
+-
+- entry = ps3vram_cache_match(mtd, to);
+- cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
+-
+- dev_dbg(priv->dev, "%s:%d: to=%08x cached=%08x offset=%08x "
+- "avail=%08x count=%08x\n", __func__, __LINE__,
+- (unsigned int)to, cached, offset, avail, count);
+-
+- if (avail > count)
+- avail = count;
+- memcpy(priv->xdr_buf + cached, buf, avail);
+-
+- priv->cache.tags[entry].flags |= CACHE_PAGE_DIRTY;
+-
+- mutex_unlock(&priv->lock);
+-
+- buf += avail;
+- count -= avail;
+- to += avail;
+- }
+-
+- *retlen = len;
+- return 0;
+-}
+-
+-static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
+-{
+- struct ps3vram_priv *priv;
+- int status;
+- u64 ddr_lpar;
+- u64 ctrl_lpar;
+- u64 info_lpar;
+- u64 reports_lpar;
+- u64 ddr_size;
+- u64 reports_size;
+- int ret = -ENOMEM;
+- char *rest;
+-
+- ret = -EIO;
+- ps3vram_mtd.priv = kzalloc(sizeof(struct ps3vram_priv), GFP_KERNEL);
+- if (!ps3vram_mtd.priv)
+- goto out;
+- priv = ps3vram_mtd.priv;
+-
+- mutex_init(&priv->lock);
+- priv->dev = &dev->core;
+-
+- /* Allocate XDR buffer (1MiB aligned) */
+- priv->xdr_buf = (void *)__get_free_pages(GFP_KERNEL,
+- get_order(XDR_BUF_SIZE));
+- if (priv->xdr_buf == NULL) {
+- dev_dbg(&dev->core, "%s:%d: could not allocate XDR buffer\n",
+- __func__, __LINE__);
+- ret = -ENOMEM;
+- goto out_free_priv;
+- }
+-
+- /* Put FIFO at begginning of XDR buffer */
+- priv->fifo_base = (u32 *) (priv->xdr_buf + FIFO_OFFSET);
+- priv->fifo_ptr = priv->fifo_base;
+-
+- /* XXX: Need to open GPU, in case ps3fb or snd_ps3 aren't loaded */
+- if (ps3_open_hv_device(dev)) {
+- dev_err(&dev->core, "%s:%d: ps3_open_hv_device failed\n",
+- __func__, __LINE__);
+- ret = -EAGAIN;
+- goto out_close_gpu;
+- }
+-
+- /* Request memory */
+- status = -1;
+- ddr_size = memparse(size, &rest);
+- if (*rest == '-')
+- ddr_size -= ps3fb_videomemory.size;
+- ddr_size = ALIGN(ddr_size, 1024*1024);
+- if (ddr_size <= 0) {
+- dev_err(&dev->core, "%s:%d: specified size is too small\n",
+- __func__, __LINE__);
+- ret = -EINVAL;
+- goto out_close_gpu;
+- }
+-
+- while (ddr_size > 0) {
+- status = lv1_gpu_memory_allocate(ddr_size, 0, 0, 0, 0,
+- &priv->memory_handle,
+- &ddr_lpar);
+- if (!status)
+- break;
+- ddr_size -= 1024*1024;
+- }
+- if (status || ddr_size <= 0) {
+- dev_err(&dev->core, "%s:%d: lv1_gpu_memory_allocate failed\n",
+- __func__, __LINE__);
+- ret = -ENOMEM;
+- goto out_free_xdr_buf;
+- }
+-
+- /* Request context */
+- status = lv1_gpu_context_allocate(priv->memory_handle,
+- 0,
+- &priv->context_handle,
+- &ctrl_lpar,
+- &info_lpar,
+- &reports_lpar,
+- &reports_size);
+- if (status) {
+- dev_err(&dev->core, "%s:%d: lv1_gpu_context_allocate failed\n",
+- __func__, __LINE__);
+- ret = -ENOMEM;
+- goto out_free_memory;
+- }
+-
+- /* Map XDR buffer to RSX */
+- status = lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF,
+- ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)),
+- XDR_BUF_SIZE, 0);
+- if (status) {
+- dev_err(&dev->core, "%s:%d: lv1_gpu_context_iomap failed\n",
+- __func__, __LINE__);
+- ret = -ENOMEM;
+- goto out_free_context;
+- }
+-
+- priv->ddr_base = ioremap_flags(ddr_lpar, ddr_size, _PAGE_NO_CACHE);
+-
+- if (!priv->ddr_base) {
+- dev_err(&dev->core, "%s:%d: ioremap failed\n", __func__,
+- __LINE__);
+- ret = -ENOMEM;
+- goto out_free_context;
+- }
+-
+- priv->ctrl = ioremap(ctrl_lpar, 64 * 1024);
+- if (!priv->ctrl) {
+- dev_err(&dev->core, "%s:%d: ioremap failed\n", __func__,
+- __LINE__);
+- ret = -ENOMEM;
+- goto out_unmap_vram;
+- }
+-
+- priv->reports = ioremap(reports_lpar, reports_size);
+- if (!priv->reports) {
+- dev_err(&dev->core, "%s:%d: ioremap failed\n", __func__,
+- __LINE__);
+- ret = -ENOMEM;
+- goto out_unmap_ctrl;
+- }
+-
+- mutex_lock(&ps3_gpu_mutex);
+- ps3vram_init_ring(&ps3vram_mtd);
+- mutex_unlock(&ps3_gpu_mutex);
+-
+- ps3vram_mtd.name = "ps3vram";
+- ps3vram_mtd.size = ddr_size;
+- ps3vram_mtd.flags = MTD_CAP_RAM;
+- ps3vram_mtd.erase = ps3vram_erase;
+- ps3vram_mtd.point = NULL;
+- ps3vram_mtd.unpoint = NULL;
+- ps3vram_mtd.read = ps3vram_read;
+- ps3vram_mtd.write = ps3vram_write;
+- ps3vram_mtd.owner = THIS_MODULE;
+- ps3vram_mtd.type = MTD_RAM;
+- ps3vram_mtd.erasesize = CACHE_PAGE_SIZE;
+- ps3vram_mtd.writesize = 1;
+-
+- ps3vram_bind(&ps3vram_mtd);
+-
+- mutex_lock(&ps3_gpu_mutex);
+- ret = ps3vram_wait_ring(&ps3vram_mtd, 100);
+- mutex_unlock(&ps3_gpu_mutex);
+- if (ret < 0) {
+- dev_err(&dev->core, "%s:%d: failed to initialize channels\n",
+- __func__, __LINE__);
+- ret = -ETIMEDOUT;
+- goto out_unmap_reports;
+- }
+-
+- ps3vram_cache_init(&ps3vram_mtd);
+-
+- if (add_mtd_device(&ps3vram_mtd)) {
+- dev_err(&dev->core, "%s:%d: add_mtd_device failed\n",
+- __func__, __LINE__);
+- ret = -EAGAIN;
+- goto out_cache_cleanup;
+- }
+-
+- dev_info(&dev->core, "reserved %u MiB of gpu memory\n",
+- (unsigned int)(ddr_size / 1024 / 1024));
+-
+- return 0;
+-
+-out_cache_cleanup:
+- ps3vram_cache_cleanup(&ps3vram_mtd);
+-out_unmap_reports:
+- iounmap(priv->reports);
+-out_unmap_ctrl:
+- iounmap(priv->ctrl);
+-out_unmap_vram:
+- iounmap(priv->ddr_base);
+-out_free_context:
+- lv1_gpu_context_free(priv->context_handle);
+-out_free_memory:
+- lv1_gpu_memory_free(priv->memory_handle);
+-out_close_gpu:
+- ps3_close_hv_device(dev);
+-out_free_xdr_buf:
+- free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE));
+-out_free_priv:
+- kfree(ps3vram_mtd.priv);
+- ps3vram_mtd.priv = NULL;
+-out:
+- return ret;
+-}
+-
+-static int ps3vram_shutdown(struct ps3_system_bus_device *dev)
+-{
+- struct ps3vram_priv *priv;
+-
+- priv = ps3vram_mtd.priv;
+-
+- del_mtd_device(&ps3vram_mtd);
+- ps3vram_cache_cleanup(&ps3vram_mtd);
+- iounmap(priv->reports);
+- iounmap(priv->ctrl);
+- iounmap(priv->ddr_base);
+- lv1_gpu_context_free(priv->context_handle);
+- lv1_gpu_memory_free(priv->memory_handle);
+- ps3_close_hv_device(dev);
+- free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE));
+- kfree(priv);
+- return 0;
+-}
+-
+-static struct ps3_system_bus_driver ps3vram_driver = {
+- .match_id = PS3_MATCH_ID_GPU,
+- .match_sub_id = PS3_MATCH_SUB_ID_GPU_RAMDISK,
+- .core.name = DEVICE_NAME,
+- .core.owner = THIS_MODULE,
+- .probe = ps3vram_probe,
+- .remove = ps3vram_shutdown,
+- .shutdown = ps3vram_shutdown,
+-};
+-
+-static int __init ps3vram_init(void)
+-{
+- return ps3_system_bus_driver_register(&ps3vram_driver);
+-}
+-
+-static void __exit ps3vram_exit(void)
+-{
+- ps3_system_bus_driver_unregister(&ps3vram_driver);
+-}
+-
+-module_init(ps3vram_init);
+-module_exit(ps3vram_exit);
+-
+-MODULE_LICENSE("GPL");
+-MODULE_AUTHOR("Jim Paris <jim@jtan.com>");
+-MODULE_DESCRIPTION("MTD driver for PS3 video RAM");
+-MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_RAMDISK);
+--
+1.6.0.4
+
projects / openwrt / staging / chunkeey.git / commitdiff