brcm2708: organize kernel patches
[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.19 / 950-0683-staging-vcsm-cma-Remove-cache-manipulation-ioctl-fro.patch
diff --git a/target/linux/brcm2708/patches-4.19/950-0683-staging-vcsm-cma-Remove-cache-manipulation-ioctl-fro.patch b/target/linux/brcm2708/patches-4.19/950-0683-staging-vcsm-cma-Remove-cache-manipulation-ioctl-fro.patch
deleted file mode 100644 (file)
index 7463d07..0000000
+++ /dev/null
@@ -1,78 +0,0 @@
-From b30537425b4bf90311b8d43c95484d9d339be25f Mon Sep 17 00:00:00 2001
-From: Dave Stevenson <dave.stevenson@raspberrypi.org>
-Date: Tue, 25 Jun 2019 00:29:44 +0100
-Subject: [PATCH 683/806] staging: vcsm-cma: Remove cache manipulation ioctl
- from ARM64
-
-The cache flushing ioctls are used by the Pi3 HEVC hw-assisted
-decoder as it needs finer grained flushing control than dma_ops
-allow.
-These cache calls are not present for ARM64, therefore disable
-them. We are not actively supporting 64bit kernels at present,
-and the use case of the HEVC decoder is fairly limited.
-
-Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
----
- drivers/staging/vc04_services/vc-sm-cma/vc_sm.c | 8 ++++++++
- 1 file changed, 8 insertions(+)
-
---- a/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c
-+++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c
-@@ -1259,6 +1259,7 @@ error:
-       return ret;
- }
-+#ifndef CONFIG_ARM64
- /* Converts VCSM_CACHE_OP_* to an operating function. */
- static void (*cache_op_to_func(const unsigned int cache_op))
-                                               (const void*, const void*)
-@@ -1351,6 +1352,7 @@ out:
-       return ret;
- }
-+#endif
- static long vc_sm_cma_ioctl(struct file *file, unsigned int cmd,
-                           unsigned long arg)
-@@ -1448,6 +1450,7 @@ static long vc_sm_cma_ioctl(struct file
-               break;
-       }
-+#ifndef CONFIG_ARM64
-       /*
-        * Flush/Invalidate the cache for a given mapping.
-        * Blocks must be pinned (i.e. accessed) before this call.
-@@ -1455,6 +1458,7 @@ static long vc_sm_cma_ioctl(struct file
-       case VC_SM_CMA_CMD_CLEAN_INVALID2:
-               ret = vc_sm_cma_clean_invalid2(cmdnr, arg);
-               break;
-+#endif
-       default:
-               pr_debug("[%s]: cmd %x tgid %u, owner %u\n", __func__, cmdnr,
-@@ -1467,6 +1471,7 @@ static long vc_sm_cma_ioctl(struct file
-       return ret;
- }
-+#ifndef CONFIG_ARM64
- #ifdef CONFIG_COMPAT
- struct vc_sm_cma_ioctl_clean_invalid2_32 {
-       u32 op_count;
-@@ -1496,14 +1501,17 @@ static long vc_sm_cma_compat_ioctl(struc
-       }
- }
- #endif
-+#endif
- /* Device operations that we managed in this driver. */
- static const struct file_operations vc_sm_ops = {
-       .owner = THIS_MODULE,
-       .unlocked_ioctl = vc_sm_cma_ioctl,
-+#ifndef CONFIG_ARM64
- #ifdef CONFIG_COMPAT
-       .compat_ioctl = vc_sm_cma_compat_ioctl,
- #endif
-+#endif
-       .open = vc_sm_cma_open,
-       .release = vc_sm_cma_release,
- };