--- /dev/null
+From 2d4f38abdc2a919d8002fbec7bc0be7c1312786a Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Mon, 14 Jan 2019 15:13:17 -0800
+Subject: [PATCH] drm/v3d: HACK: gut runtime pm for now.
+
+Something is still unstable -- on starting a new glxgears from an idle
+X11, I get an MMU violation in high addresses. The CTS also failed
+quite quickly. With this, CTS progresses for an hour before OOMing
+(allocating some big buffers when my board only has 600MB available to
+Linux)
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/gpu/drm/v3d/v3d_debugfs.c | 16 +---------------
+ drivers/gpu/drm/v3d/v3d_drv.c | 7 -------
+ drivers/gpu/drm/v3d/v3d_gem.c | 20 --------------------
+ 3 files changed, 1 insertion(+), 42 deletions(-)
+
+--- a/drivers/gpu/drm/v3d/v3d_debugfs.c
++++ b/drivers/gpu/drm/v3d/v3d_debugfs.c
+@@ -4,7 +4,6 @@
+ #include <linux/circ_buf.h>
+ #include <linux/ctype.h>
+ #include <linux/debugfs.h>
+-#include <linux/pm_runtime.h>
+ #include <linux/seq_file.h>
+ #include <drm/drmP.h>
+
+@@ -100,11 +99,8 @@ static int v3d_v3d_debugfs_ident(struct
+ struct drm_device *dev = node->minor->dev;
+ struct v3d_dev *v3d = to_v3d_dev(dev);
+ u32 ident0, ident1, ident2, ident3, cores;
+- int ret, core;
++ int core;
+
+- ret = pm_runtime_get_sync(v3d->dev);
+- if (ret < 0)
+- return ret;
+
+ ident0 = V3D_READ(V3D_HUB_IDENT0);
+ ident1 = V3D_READ(V3D_HUB_IDENT1);
+@@ -157,9 +153,6 @@ static int v3d_v3d_debugfs_ident(struct
+ (misccfg & V3D_MISCCFG_OVRTMUOUT) != 0);
+ }
+
+- pm_runtime_mark_last_busy(v3d->dev);
+- pm_runtime_put_autosuspend(v3d->dev);
+-
+ return 0;
+ }
+
+@@ -187,11 +180,6 @@ static int v3d_measure_clock(struct seq_
+ uint32_t cycles;
+ int core = 0;
+ int measure_ms = 1000;
+- int ret;
+-
+- ret = pm_runtime_get_sync(v3d->dev);
+- if (ret < 0)
+- return ret;
+
+ if (v3d->ver >= 40) {
+ V3D_CORE_WRITE(core, V3D_V4_PCTR_0_SRC_0_3,
+@@ -215,8 +203,6 @@ static int v3d_measure_clock(struct seq_
+ cycles / (measure_ms * 1000),
+ (cycles / (measure_ms * 100)) % 10);
+
+- pm_runtime_mark_last_busy(v3d->dev);
+- pm_runtime_put_autosuspend(v3d->dev);
+
+ return 0;
+ }
+--- a/drivers/gpu/drm/v3d/v3d_drv.c
++++ b/drivers/gpu/drm/v3d/v3d_drv.c
+@@ -75,7 +75,6 @@ static int v3d_get_param_ioctl(struct dr
+ {
+ struct v3d_dev *v3d = to_v3d_dev(dev);
+ struct drm_v3d_get_param *args = data;
+- int ret;
+ static const u32 reg_map[] = {
+ [DRM_V3D_PARAM_V3D_UIFCFG] = V3D_HUB_UIFCFG,
+ [DRM_V3D_PARAM_V3D_HUB_IDENT1] = V3D_HUB_IDENT1,
+@@ -101,15 +100,12 @@ static int v3d_get_param_ioctl(struct dr
+ if (args->value != 0)
+ return -EINVAL;
+
+- ret = pm_runtime_get_sync(v3d->dev);
+ if (args->param >= DRM_V3D_PARAM_V3D_CORE0_IDENT0 &&
+ args->param <= DRM_V3D_PARAM_V3D_CORE0_IDENT2) {
+ args->value = V3D_CORE_READ(0, offset);
+ } else {
+ args->value = V3D_READ(offset);
+ }
+- pm_runtime_mark_last_busy(v3d->dev);
+- pm_runtime_put_autosuspend(v3d->dev);
+ return 0;
+ }
+
+@@ -311,9 +307,6 @@ static int v3d_platform_drm_probe(struct
+ goto dev_free;
+ }
+
+- pm_runtime_use_autosuspend(dev);
+- pm_runtime_set_autosuspend_delay(dev, 50);
+- pm_runtime_enable(dev);
+
+ ret = drm_dev_init(&v3d->drm, &v3d_drm_driver, dev);
+ if (ret)
+--- a/drivers/gpu/drm/v3d/v3d_gem.c
++++ b/drivers/gpu/drm/v3d/v3d_gem.c
+@@ -375,7 +375,6 @@ v3d_exec_cleanup(struct kref *ref)
+ {
+ struct v3d_exec_info *exec = container_of(ref, struct v3d_exec_info,
+ refcount);
+- struct v3d_dev *v3d = exec->v3d;
+ unsigned int i;
+ struct v3d_bo *bo, *save;
+
+@@ -396,9 +395,6 @@ v3d_exec_cleanup(struct kref *ref)
+ drm_gem_object_put_unlocked(&bo->base);
+ }
+
+- pm_runtime_mark_last_busy(v3d->dev);
+- pm_runtime_put_autosuspend(v3d->dev);
+-
+ kfree(exec);
+ }
+
+@@ -412,7 +408,6 @@ v3d_tfu_job_cleanup(struct kref *ref)
+ {
+ struct v3d_tfu_job *job = container_of(ref, struct v3d_tfu_job,
+ refcount);
+- struct v3d_dev *v3d = job->v3d;
+ unsigned int i;
+
+ dma_fence_put(job->in_fence);
+@@ -423,9 +418,6 @@ v3d_tfu_job_cleanup(struct kref *ref)
+ drm_gem_object_put_unlocked(&job->bo[i]->base);
+ }
+
+- pm_runtime_mark_last_busy(v3d->dev);
+- pm_runtime_put_autosuspend(v3d->dev);
+-
+ kfree(job);
+ }
+
+@@ -519,12 +511,6 @@ v3d_submit_cl_ioctl(struct drm_device *d
+ if (!exec)
+ return -ENOMEM;
+
+- ret = pm_runtime_get_sync(v3d->dev);
+- if (ret < 0) {
+- kfree(exec);
+- return ret;
+- }
+-
+ kref_init(&exec->refcount);
+
+ ret = drm_syncobj_find_fence(file_priv, args->in_sync_bcl,
+@@ -643,12 +629,6 @@ v3d_submit_tfu_ioctl(struct drm_device *
+ if (!job)
+ return -ENOMEM;
+
+- ret = pm_runtime_get_sync(v3d->dev);
+- if (ret < 0) {
+- kfree(job);
+- return ret;
+- }
+-
+ kref_init(&job->refcount);
+
+ ret = drm_syncobj_find_fence(file_priv, args->in_sync,
projects / openwrt / staging / dedeckeh.git / blobdiff