From: Michel Dänzer <michel.daen...@amd.com>
With the previous change, it's safe to let page flips take effect
anytime during a vertical blank period.
This can avoid delaying a flip by a frame in some cases where we get to
amdgpu_flip_work_func -> adev->mode_info.funcs->page_flip during a
vertical blank period.
Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
drivers/gpu/drm/amd/amdgpu/dce_v10_0.c | 8 ++++----
drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 4 ++--
drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 4 ++--
3 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
index a158942..ddf5c7a 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
@@ -646,8 +646,8 @@ static void dce_v10_0_resume_mc_access(struct amdgpu_device
*adev,
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);
+ if (REG_GET_FIELD(tmp, MASTER_UPDATE_MODE,
MASTER_UPDATE_MODE) != 0) {
+ tmp = REG_SET_FIELD(tmp, MASTER_UPDATE_MODE,
MASTER_UPDATE_MODE, 0);
WREG32(mmMASTER_UPDATE_MODE + crtc_offsets[i],
tmp);
}
tmp = RREG32(mmGRPH_UPDATE + crtc_offsets[i]);
@@ -2275,8 +2275,8 @@ static int dce_v10_0_crtc_do_set_base(struct drm_crtc
*crtc,
WREG32(mmVIEWPORT_SIZE + amdgpu_crtc->crtc_offset,
(viewport_w << 16) | viewport_h);
- /* set pageflip to happen only at start of vblank interval (front
porch) */
- WREG32(mmMASTER_UPDATE_MODE + amdgpu_crtc->crtc_offset, 3);
+ /* set pageflip to happen anywhere in vblank interval */
+ WREG32(mmMASTER_UPDATE_MODE + amdgpu_crtc->crtc_offset, 0);
if (!atomic && fb && fb != crtc->primary->fb) {
amdgpu_fb = to_amdgpu_framebuffer(fb);
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
index 4455d63..97ae822 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
@@ -2250,8 +2250,8 @@ static int dce_v11_0_crtc_do_set_base(struct drm_crtc
*crtc,
WREG32(mmVIEWPORT_SIZE + amdgpu_crtc->crtc_offset,
(viewport_w << 16) | viewport_h);
- /* set pageflip to happen only at start of vblank interval (front
porch) */
- WREG32(mmCRTC_MASTER_UPDATE_MODE + amdgpu_crtc->crtc_offset, 3);
+ /* set pageflip to happen anywhere in vblank interval */
+ WREG32(mmCRTC_MASTER_UPDATE_MODE + amdgpu_crtc->crtc_offset, 0);
if (!atomic && fb && fb != crtc->primary->fb) {
amdgpu_fb = to_amdgpu_framebuffer(fb);
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
index ad4884a..9a876db 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
@@ -2137,8 +2137,8 @@ static int dce_v8_0_crtc_do_set_base(struct drm_crtc
*crtc,
WREG32(mmVIEWPORT_SIZE + amdgpu_crtc->crtc_offset,
(viewport_w << 16) | viewport_h);
- /* set pageflip to happen only at start of vblank interval (front
porch) */
- WREG32(mmMASTER_UPDATE_MODE + amdgpu_crtc->crtc_offset, 3);
+ /* set pageflip to happen anywhere in vblank interval */
+ WREG32(mmMASTER_UPDATE_MODE + amdgpu_crtc->crtc_offset, 0);
if (!atomic && fb && fb != crtc->primary->fb) {
amdgpu_fb = to_amdgpu_framebuffer(fb);
--
2.8.1
