From 1480a99bfef66b0c0f07c90436a873937b656ce7 Mon Sep 17 00:00:00 2001 From: Eric Anholt 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 --- drivers/gpu/drm/v3d/v3d_debugfs.c | 16 +--------------- drivers/gpu/drm/v3d/v3d_drv.c | 9 --------- 2 files changed, 1 insertion(+), 24 deletions(-) --- a/drivers/gpu/drm/v3d/v3d_debugfs.c +++ b/drivers/gpu/drm/v3d/v3d_debugfs.c @@ -4,7 +4,6 @@ #include #include #include -#include #include #include @@ -130,11 +129,8 @@ 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->drm.dev); - if (ret < 0) - return ret; ident0 = V3D_READ(V3D_HUB_IDENT0); ident1 = V3D_READ(V3D_HUB_IDENT1); @@ -187,9 +183,6 @@ static int v3d_v3d_debugfs_ident(struct (misccfg & V3D_MISCCFG_OVRTMUOUT) != 0); } - pm_runtime_mark_last_busy(v3d->drm.dev); - pm_runtime_put_autosuspend(v3d->drm.dev); - return 0; } @@ -217,11 +210,6 @@ 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->drm.dev); - if (ret < 0) - return ret; if (v3d->ver >= 40) { V3D_CORE_WRITE(core, V3D_V4_PCTR_0_SRC_0_3, @@ -245,8 +233,6 @@ static int v3d_measure_clock(struct seq_ cycles / (measure_ms * 1000), (cycles / (measure_ms * 100)) % 10); - pm_runtime_mark_last_busy(v3d->drm.dev); - pm_runtime_put_autosuspend(v3d->drm.dev); return 0; } --- a/drivers/gpu/drm/v3d/v3d_drv.c +++ b/drivers/gpu/drm/v3d/v3d_drv.c @@ -79,7 +79,6 @@ 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, @@ -105,17 +104,12 @@ static int v3d_get_param_ioctl(struct dr if (args->value != 0) return -EINVAL; - ret = pm_runtime_get_sync(v3d->drm.dev); - if (ret < 0) - return ret; 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->drm.dev); - pm_runtime_put_autosuspend(v3d->drm.dev); return 0; } @@ -308,9 +302,6 @@ static int v3d_platform_drm_probe(struct return -ENOMEM; } - pm_runtime_use_autosuspend(dev); - pm_runtime_set_autosuspend_delay(dev, 50); - pm_runtime_enable(dev); ret = v3d_gem_init(drm); if (ret)