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drm/amdgpu/dce8: fix flash with white screen on monitor

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Fixed mc stop and resume hardware programming sequence.

Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Junwei Zhang 2016-06-17 17:07:56 +08:00 committed by Alex Deucher
parent 9ecbe7f506
commit 5a3f25dbcb
1 changed files with 7 additions and 60 deletions
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67
drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
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@ -526,36 +526,16 @@ static void dce_v8_0_stop_mc_access(struct amdgpu_device *adev,
crtc_enabled = REG_GET_FIELD(RREG32(mmCRTC_CONTROL + crtc_offsets[i]),
CRTC_CONTROL, CRTC_MASTER_EN);
if (crtc_enabled) {
#if 0
u32 frame_count;
int j;
#if 1
save->crtc_enabled[i] = true;
tmp = RREG32(mmCRTC_BLANK_CONTROL + crtc_offsets[i]);
if (REG_GET_FIELD(tmp, CRTC_BLANK_CONTROL, CRTC_BLANK_DATA_EN) == 0) {
amdgpu_display_vblank_wait(adev, i);
WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 1);
/*it is correct only for RGB ; black is 0*/
WREG32(mmCRTC_BLANK_DATA_COLOR + crtc_offsets[i], 0);
tmp = REG_SET_FIELD(tmp, CRTC_BLANK_CONTROL, CRTC_BLANK_DATA_EN, 1);
WREG32(mmCRTC_BLANK_CONTROL + crtc_offsets[i], tmp);
WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 0);
}
/* wait for the next frame */
frame_count = amdgpu_display_vblank_get_counter(adev, i);
for (j = 0; j < adev->usec_timeout; j++) {
if (amdgpu_display_vblank_get_counter(adev, i) != frame_count)
break;
udelay(1);
}
tmp = RREG32(mmGRPH_UPDATE + crtc_offsets[i]);
if (REG_GET_FIELD(tmp, GRPH_UPDATE, GRPH_UPDATE_LOCK) == 0) {
tmp = REG_SET_FIELD(tmp, GRPH_UPDATE, GRPH_UPDATE_LOCK, 1);
WREG32(mmGRPH_UPDATE + crtc_offsets[i], tmp);
}
tmp = RREG32(mmMASTER_UPDATE_LOCK + crtc_offsets[i]);
if (REG_GET_FIELD(tmp, MASTER_UPDATE_LOCK, MASTER_UPDATE_LOCK) == 0) {
tmp = REG_SET_FIELD(tmp, MASTER_UPDATE_LOCK, MASTER_UPDATE_LOCK, 1);
WREG32(mmMASTER_UPDATE_LOCK + crtc_offsets[i], tmp);
}
mdelay(20);
#else
/* XXX this is a hack to avoid strange behavior with EFI on certain systems */
WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 1);
@ -575,55 +555,22 @@ static void dce_v8_0_stop_mc_access(struct amdgpu_device *adev,
static void dce_v8_0_resume_mc_access(struct amdgpu_device *adev,
struct amdgpu_mode_mc_save *save)
{
u32 tmp, frame_count;
int i, j;
u32 tmp;
int i;
/* update crtc base addresses */
for (i = 0; i < adev->mode_info.num_crtc; i++) {
WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + crtc_offsets[i],
upper_32_bits(adev->mc.vram_start));
WREG32(mmGRPH_SECONDARY_SURFACE_ADDRESS_HIGH + crtc_offsets[i],
upper_32_bits(adev->mc.vram_start));
WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS + crtc_offsets[i],
(u32)adev->mc.vram_start);
WREG32(mmGRPH_SECONDARY_SURFACE_ADDRESS + crtc_offsets[i],
(u32)adev->mc.vram_start);
if (save->crtc_enabled[i]) {
tmp = RREG32(mmMASTER_UPDATE_MODE + crtc_offsets[i]);
if (REG_GET_FIELD(tmp, MASTER_UPDATE_MODE, MASTER_UPDATE_MODE) != 3) {
tmp = REG_SET_FIELD(tmp, MASTER_UPDATE_MODE, MASTER_UPDATE_MODE, 3);
WREG32(mmMASTER_UPDATE_MODE + crtc_offsets[i], tmp);
}
tmp = RREG32(mmGRPH_UPDATE + crtc_offsets[i]);
if (REG_GET_FIELD(tmp, GRPH_UPDATE, GRPH_UPDATE_LOCK)) {
tmp = REG_SET_FIELD(tmp, GRPH_UPDATE, GRPH_UPDATE_LOCK, 0);
WREG32(mmGRPH_UPDATE + crtc_offsets[i], tmp);
}
tmp = RREG32(mmMASTER_UPDATE_LOCK + crtc_offsets[i]);
if (REG_GET_FIELD(tmp, MASTER_UPDATE_LOCK, MASTER_UPDATE_LOCK)) {
tmp = REG_SET_FIELD(tmp, MASTER_UPDATE_LOCK, MASTER_UPDATE_LOCK, 0);
WREG32(mmMASTER_UPDATE_LOCK + crtc_offsets[i], tmp);
}
for (j = 0; j < adev->usec_timeout; j++) {
tmp = RREG32(mmGRPH_UPDATE + crtc_offsets[i]);
if (REG_GET_FIELD(tmp, GRPH_UPDATE, GRPH_SURFACE_UPDATE_PENDING) == 0)
break;
udelay(1);
}
tmp = RREG32(mmCRTC_BLANK_CONTROL + crtc_offsets[i]);
tmp = REG_SET_FIELD(tmp, CRTC_BLANK_CONTROL, CRTC_BLANK_DATA_EN, 0);
WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 1);
WREG32(mmCRTC_BLANK_CONTROL + crtc_offsets[i], tmp);
WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 0);
/* wait for the next frame */
frame_count = amdgpu_display_vblank_get_counter(adev, i);
for (j = 0; j < adev->usec_timeout; j++) {
if (amdgpu_display_vblank_get_counter(adev, i) != frame_count)
break;
udelay(1);
}
}
mdelay(20);
}
WREG32(mmVGA_MEMORY_BASE_ADDRESS_HIGH, upper_32_bits(adev->mc.vram_start));