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radeon: Fix KMS CP writeback on big endian machines.

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This is necessary even with PCI(e) GART, and it makes writeback work even with
AGP on my PowerBook. Might still be unreliable with older revisions of UniNorth
and other AGP bridges though.

Signed-off-by: Michel Dänzer <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
This commit is contained in:
Michel Dänzer 2011-04-07 16:17:47 +02:00 • committed by Dave Airlie
commit dc66b325f1
2 changed files with 2 additions and 2 deletions
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2
drivers/gpu/drm/radeon/radeon_fence.c
View file

@ -79,7 +79,7 @@ static bool radeon_fence_poll_locked(struct radeon_device *rdev)
scratch_index = R600_WB_EVENT_OFFSET + rdev->fence_drv.scratch_reg - rdev->scratch.reg_base;
else
scratch_index = RADEON_WB_SCRATCH_OFFSET + rdev->fence_drv.scratch_reg - rdev->scratch.reg_base;
seq = rdev->wb.wb[scratch_index/4];
seq = le32_to_cpu(rdev->wb.wb[scratch_index/4]);
} else
seq = RREG32(rdev->fence_drv.scratch_reg);
if (seq != rdev->fence_drv.last_seq) {

2
drivers/gpu/drm/radeon/radeon_ring.c
View file

@ -248,7 +248,7 @@ void radeon_ib_pool_fini(struct radeon_device *rdev)
void radeon_ring_free_size(struct radeon_device *rdev)
{
if (rdev->wb.enabled)
rdev->cp.rptr = rdev->wb.wb[RADEON_WB_CP_RPTR_OFFSET/4];
rdev->cp.rptr = le32_to_cpu(rdev->wb.wb[RADEON_WB_CP_RPTR_OFFSET/4]);
else {
if (rdev->family >= CHIP_R600)
rdev->cp.rptr = RREG32(R600_CP_RB_RPTR);