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drm/radeon: use the reset mask to determine if rings are hung

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fetch the reset mask and check if the relevant ring flags
are set to determine whether the ring is hung or not.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2013-01-24 11:37:19 -05:00
parent f770d78ac1
commit 123bc1832c
6 changed files with 172 additions and 79 deletions
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29
drivers/gpu/drm/radeon/r600.c
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@@ -1537,16 +1537,22 @@ int r600_asic_reset(struct radeon_device *rdev)
return 0;
}
bool r600_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
/**
* r600_gfx_is_lockup - Check if the GFX engine is locked up
*
* @rdev: radeon_device pointer
* @ring: radeon_ring structure holding ring information
*
* Check if the GFX engine is locked up.
* Returns true if the engine appears to be locked up, false if not.
*/
bool r600_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
{
u32 srbm_status;
u32 grbm_status;
u32 grbm_status2;
u32 reset_mask = r600_gpu_check_soft_reset(rdev);
srbm_status = RREG32(R_000E50_SRBM_STATUS);
grbm_status = RREG32(R_008010_GRBM_STATUS);
grbm_status2 = RREG32(R_008014_GRBM_STATUS2);
if (!G_008010_GUI_ACTIVE(grbm_status)) {
if (!(reset_mask & (RADEON_RESET_GFX |
RADEON_RESET_COMPUTE |
RADEON_RESET_CP))) {
radeon_ring_lockup_update(ring);
return false;
}
@@ -1561,15 +1567,14 @@ bool r600_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
* @rdev: radeon_device pointer
* @ring: radeon_ring structure holding ring information
*
* Check if the async DMA engine is locked up (r6xx-evergreen).
* Check if the async DMA engine is locked up.
* Returns true if the engine appears to be locked up, false if not.
*/
bool r600_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
{
u32 dma_status_reg;
u32 reset_mask = r600_gpu_check_soft_reset(rdev);
dma_status_reg = RREG32(DMA_STATUS_REG);
if (dma_status_reg & DMA_IDLE) {
if (!(reset_mask & RADEON_RESET_DMA)) {
radeon_ring_lockup_update(ring);
return false;
}