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| author | Jerome Glisse <jglisse@redhat.com> | 2013-01-11 15:19:43 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-01-15 09:07:13 -0500 |
| commit | 5f0839c11e17d8d942ab02626752f95e30a02a4c (patch) | |
| tree | cd14814af7d7018af8f52c800bf9d4fc7f87e028 /drivers/gpu/drm/radeon/radeon_semaphore.c | |
| parent | c18b1170493de637eea58671da7df5689ce13491 (diff) | |
| download | linux-5f0839c11e17d8d942ab02626752f95e30a02a4c.tar.bz2 | |
drm/radeon: improve semaphore debugging on lockup
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_semaphore.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_semaphore.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_semaphore.c b/drivers/gpu/drm/radeon/radeon_semaphore.c index 97f3ece81cd2..8dcc20f53d73 100644 --- a/drivers/gpu/drm/radeon/radeon_semaphore.c +++ b/drivers/gpu/drm/radeon/radeon_semaphore.c @@ -95,6 +95,10 @@ int radeon_semaphore_sync_rings(struct radeon_device *rdev, /* we assume caller has already allocated space on waiters ring */ radeon_semaphore_emit_wait(rdev, waiter, semaphore); + /* for debugging lockup only, used by sysfs debug files */ + rdev->ring[signaler].last_semaphore_signal_addr = semaphore->gpu_addr; + rdev->ring[waiter].last_semaphore_wait_addr = semaphore->gpu_addr; + return 0; } |