diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/radeon/r100.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 138ddd49dfc..c8f4b0300b7 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -744,6 +744,8 @@ int r100_cp_init(struct radeon_device *rdev, unsigned ring_size) udelay(10); rdev->cp.rptr = RREG32(RADEON_CP_RB_RPTR); rdev->cp.wptr = RREG32(RADEON_CP_RB_WPTR); + /* protect against crazy HW on resume */ + rdev->cp.wptr &= rdev->cp.ptr_mask; /* Set cp mode to bus mastering & enable cp*/ WREG32(RADEON_CP_CSQ_MODE, REG_SET(RADEON_INDIRECT2_START, indirect2_start) | |