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| author | Rob Clark <robdclark@gmail.com> | 2015-05-12 15:29:40 (GMT) |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2015-06-11 17:11:01 (GMT) |
| commit | d735fdc35b4433abb736e843cfd2d34913344b3a (patch) | |
| tree | 61a3e638d00adcdff3fa7c7d7669badd8693301c /drivers/gpu/drm | |
| parent | de558cd2ae2e9999d0b6328c22c398ff85b6327c (diff) | |
| download | linux-d735fdc35b4433abb736e843cfd2d34913344b3a.tar.xz | |
drm/msm: workaround for missing irq on a306/8x16
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 031579e..a3b54cc 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -176,6 +176,17 @@ int adreno_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit, OUT_PKT3(ring, CP_INTERRUPT, 1); OUT_RING(ring, 0x80000000); + /* Workaround for missing irq issue on 8x16/a306. Unsure if the + * root cause is a platform issue or some a306 quirk, but this + * keeps things humming along: + */ + if (adreno_is_a306(adreno_gpu)) { + OUT_PKT3(ring, CP_WAIT_FOR_IDLE, 1); + OUT_RING(ring, 0x00000000); + OUT_PKT3(ring, CP_INTERRUPT, 1); + OUT_RING(ring, 0x80000000); + } + #if 0 if (adreno_is_a3xx(adreno_gpu)) { /* Dummy set-constant to trigger context rollover */ |