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drm/radeon: Save and restore bios scratch regs during S/R

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[airlied:- adapted slightly in naming]

Signed-off-by: Yang Zhao <yang@yangman.ca>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Yang Zhao
2009-09-15 12:21:01 +10:00
committed by Dave Airlie
parent ecb114a128
commit f657c2a731
4 changed files with 35 additions and 0 deletions
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28
drivers/gpu/drm/radeon/radeon_atombios.c
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@@ -1045,6 +1045,34 @@ void radeon_atom_initialize_bios_scratch_regs(struct drm_device *dev)
}
void radeon_save_bios_scratch_regs(struct radeon_device *rdev)
{
uint32_t scratch_reg;
int i;
if (rdev->family >= CHIP_R600)
scratch_reg = R600_BIOS_0_SCRATCH;
else
scratch_reg = RADEON_BIOS_0_SCRATCH;
for (i = 0; i < RADEON_BIOS_NUM_SCRATCH; i++)
rdev->bios_scratch[i] = RREG32(scratch_reg + (i * 4));
}
void radeon_restore_bios_scratch_regs(struct radeon_device *rdev)
{
uint32_t scratch_reg;
int i;
if (rdev->family >= CHIP_R600)
scratch_reg = R600_BIOS_0_SCRATCH;
else
scratch_reg = RADEON_BIOS_0_SCRATCH;
for (i = 0; i < RADEON_BIOS_NUM_SCRATCH; i++)
WREG32(scratch_reg + (i * 4), rdev->bios_scratch[i]);
}
void radeon_atom_output_lock(struct drm_encoder *encoder, bool lock)
{
struct drm_device *dev = encoder->dev;