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drm/radeon/kms: restore surface registers on resume.

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On resume on my rv530 laptop surface cntl was left disabled, so
wierd stuff would happen with rendering to a tiled front buffer.

This checks if the surface regs are assigned to bos and reprograms
the surface registers on resume using the same path that clears
them all on init.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2009-12-09 14:15:38 +10:00
parent 779720a320
commit 550e2d9270
11 changed files with 23 additions and 7 deletions
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9
drivers/gpu/drm/radeon/radeon_device.c
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@@ -44,10 +44,11 @@ void radeon_surface_init(struct radeon_device *rdev)
if (rdev->family < CHIP_R600) {
int i;
for (i = 0; i < 8; i++) {
WREG32(RADEON_SURFACE0_INFO +
i * (RADEON_SURFACE1_INFO - RADEON_SURFACE0_INFO),
0);
for (i = 0; i < RADEON_GEM_MAX_SURFACES; i++) {
if (rdev->surface_regs[i].bo)
radeon_bo_get_surface_reg(rdev->surface_regs[i].bo);
else
radeon_clear_surface_reg(rdev, i);
}
/* enable surfaces */
WREG32(RADEON_SURFACE_CNTL, 0);