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| author |   Eric Anholt <eric@anholt.net> | 2019-04-18 17:10:13 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2019-05-16 09:24:43 -0700 |
| commit | 1ba9d7cbc4530ae35eb1ebbd3c5e59d0c587aefa (patch) | |
| tree | 7892fa790b8101fabc2331414fceb742aea6f5c7 /drivers/gpu/drm/v3d/v3d_gem.c | |
| parent | drm/v3d: Set the correct DMA mask according to the MMU's limits. (diff) | |
| download | linux-dev-1ba9d7cbc4530ae35eb1ebbd3c5e59d0c587aefa.tar.xz linux-dev-1ba9d7cbc4530ae35eb1ebbd3c5e59d0c587aefa.zip | |
drm/v3d: Dump V3D error debug registers in debugfs, and one at reset.
Looking at a hang recently, I noticed these registers that might tell
me if something obvious was wrong. They didn't help in this case, but
keep it around for the future.
Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190419001014.23579-3-eric@anholt.net
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Diffstat (limited to 'drivers/gpu/drm/v3d/v3d_gem.c')
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_gem.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index f736e021467a..27e0f87075d9 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -109,7 +109,9 @@ v3d_reset(struct v3d_dev *v3d) { struct drm_device *dev = &v3d->drm; - DRM_ERROR("Resetting GPU.\n"); + DRM_DEV_ERROR(dev->dev, "Resetting GPU for hang.\n"); + DRM_DEV_ERROR(dev->dev, "V3D_ERR_STAT: 0x%08x\n", + V3D_CORE_READ(0, V3D_ERR_STAT)); trace_v3d_reset_begin(dev); /* XXX: only needed for safe powerdown, not reset. */ |