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110 lines
3.1 KiB
Diff
110 lines
3.1 KiB
Diff
From ba05797f8e3578398a1ab6c835f6b100d4f46edb Mon Sep 17 00:00:00 2001
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From: Eric Anholt <eric@anholt.net>
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Date: Mon, 14 Jan 2019 15:13:17 -0800
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Subject: [PATCH] drm/v3d: HACK: gut runtime pm for now.
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Something is still unstable -- on starting a new glxgears from an idle
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X11, I get an MMU violation in high addresses. The CTS also failed
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quite quickly. With this, CTS progresses for an hour before OOMing
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(allocating some big buffers when my board only has 600MB available to
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Linux)
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Signed-off-by: Eric Anholt <eric@anholt.net>
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---
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drivers/gpu/drm/v3d/v3d_debugfs.c | 16 +---------------
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drivers/gpu/drm/v3d/v3d_drv.c | 9 ---------
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2 files changed, 1 insertion(+), 24 deletions(-)
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--- a/drivers/gpu/drm/v3d/v3d_debugfs.c
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+++ b/drivers/gpu/drm/v3d/v3d_debugfs.c
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@@ -4,7 +4,6 @@
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#include <linux/circ_buf.h>
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#include <linux/ctype.h>
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#include <linux/debugfs.h>
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-#include <linux/pm_runtime.h>
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#include <linux/seq_file.h>
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#include <drm/drm_debugfs.h>
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@@ -130,11 +129,8 @@ static int v3d_v3d_debugfs_ident(struct
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struct drm_device *dev = node->minor->dev;
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struct v3d_dev *v3d = to_v3d_dev(dev);
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u32 ident0, ident1, ident2, ident3, cores;
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- int ret, core;
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+ int core;
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- ret = pm_runtime_get_sync(v3d->dev);
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- if (ret < 0)
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- return ret;
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ident0 = V3D_READ(V3D_HUB_IDENT0);
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ident1 = V3D_READ(V3D_HUB_IDENT1);
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@@ -187,9 +183,6 @@ static int v3d_v3d_debugfs_ident(struct
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(misccfg & V3D_MISCCFG_OVRTMUOUT) != 0);
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}
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- pm_runtime_mark_last_busy(v3d->dev);
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- pm_runtime_put_autosuspend(v3d->dev);
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-
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return 0;
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}
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@@ -217,11 +210,6 @@ static int v3d_measure_clock(struct seq_
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uint32_t cycles;
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int core = 0;
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int measure_ms = 1000;
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- int ret;
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-
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- ret = pm_runtime_get_sync(v3d->dev);
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- if (ret < 0)
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- return ret;
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if (v3d->ver >= 40) {
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V3D_CORE_WRITE(core, V3D_V4_PCTR_0_SRC_0_3,
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@@ -245,8 +233,6 @@ static int v3d_measure_clock(struct seq_
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cycles / (measure_ms * 1000),
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(cycles / (measure_ms * 100)) % 10);
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- pm_runtime_mark_last_busy(v3d->dev);
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- pm_runtime_put_autosuspend(v3d->dev);
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return 0;
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}
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--- a/drivers/gpu/drm/v3d/v3d_drv.c
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+++ b/drivers/gpu/drm/v3d/v3d_drv.c
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@@ -78,7 +78,6 @@ static int v3d_get_param_ioctl(struct dr
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{
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struct v3d_dev *v3d = to_v3d_dev(dev);
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struct drm_v3d_get_param *args = data;
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- int ret;
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static const u32 reg_map[] = {
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[DRM_V3D_PARAM_V3D_UIFCFG] = V3D_HUB_UIFCFG,
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[DRM_V3D_PARAM_V3D_HUB_IDENT1] = V3D_HUB_IDENT1,
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@@ -104,17 +103,12 @@ static int v3d_get_param_ioctl(struct dr
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if (args->value != 0)
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return -EINVAL;
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- ret = pm_runtime_get_sync(v3d->dev);
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- if (ret < 0)
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- return ret;
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if (args->param >= DRM_V3D_PARAM_V3D_CORE0_IDENT0 &&
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args->param <= DRM_V3D_PARAM_V3D_CORE0_IDENT2) {
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args->value = V3D_CORE_READ(0, offset);
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} else {
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args->value = V3D_READ(offset);
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}
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- pm_runtime_mark_last_busy(v3d->dev);
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- pm_runtime_put_autosuspend(v3d->dev);
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return 0;
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}
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@@ -302,9 +296,6 @@ static int v3d_platform_drm_probe(struct
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goto dev_free;
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}
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- pm_runtime_use_autosuspend(dev);
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- pm_runtime_set_autosuspend_delay(dev, 50);
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- pm_runtime_enable(dev);
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ret = drm_dev_init(&v3d->drm, &v3d_drm_driver, dev);
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if (ret)
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