[PATCH v3] drm/radeon: Update pitch for page flip
Zhenneng Li
lizhenneng at kylinos.cn
Thu Aug 5 10:45:57 UTC 2021
When primary bo is updated, crtc's pitch may
have not been updated, this will lead to show
disorder content when user changes display mode,
we update crtc's pitch in page flip to avoid
this bug.
This refers to amdgpu's pageflip.
v1->v2:
Update all of the pitch in all of the page_flip functions
in radeon rather than just the evergreen one.
v2->v3:
Update pitch set method for r100 according to
radeon_legacy_crtc.c
Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: "Christian König" <christian.koenig at amd.com>
Cc: "Pan, Xinhui" <Xinhui.Pan at amd.com>
Cc: David Airlie <airlied at linux.ie>
Cc: Daniel Vetter <daniel at ffwll.ch>
Cc: amd-gfx at lists.freedesktop.org
Cc: dri-devel at lists.freedesktop.org
Cc: linux-kernel at vger.kernel.org
Signed-off-by: Zhenneng Li <lizhenneng at kylinos.cn>
---
drivers/gpu/drm/radeon/evergreen.c | 8 +++++++-
drivers/gpu/drm/radeon/r100.c | 9 +++++++++
drivers/gpu/drm/radeon/rs600.c | 8 +++++++-
drivers/gpu/drm/radeon/rv770.c | 8 +++++++-
4 files changed, 30 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 36a888e1b179..eeb590d2dec2 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -28,6 +28,7 @@
#include <drm/drm_vblank.h>
#include <drm/radeon_drm.h>
+#include <drm/drm_fourcc.h>
#include "atom.h"
#include "avivod.h"
@@ -1414,10 +1415,15 @@ void evergreen_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base,
bool async)
{
struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
+ struct drm_framebuffer *fb = radeon_crtc->base.primary->fb;
- /* update the scanout addresses */
+ /* flip at hsync for async, default is vsync */
WREG32(EVERGREEN_GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset,
async ? EVERGREEN_GRPH_SURFACE_UPDATE_H_RETRACE_EN : 0);
+ /* update pitch */
+ WREG32(EVERGREEN_GRPH_PITCH + radeon_crtc->crtc_offset,
+ fb->pitches[0] / fb->format->cpp[0]);
+ /* update the scanout addresses */
WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
upper_32_bits(crtc_base));
WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index ba724198b72e..2dd85ba1faa2 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -162,6 +162,8 @@ void r100_wait_for_vblank(struct radeon_device *rdev, int crtc)
void r100_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base, bool async)
{
struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
+ uint32_t crtc_pitch, pitch_pixels;
+ struct drm_framebuffer *fb = radeon_crtc->base.primary->fb;
u32 tmp = ((u32)crtc_base) | RADEON_CRTC_OFFSET__OFFSET_LOCK;
int i;
@@ -169,6 +171,13 @@ void r100_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base, bool
/* update the scanout addresses */
WREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset, tmp);
+ /* update pitch */
+ pitch_pixels = fb->pitches[0] / fb->format->cpp[0];
+ crtc_pitch = DIV_ROUND_UP(pitch_pixels * fb->format->cpp[0] * 8,
+ fb->format->cpp[0] * 8 * 8);
+ crtc_pitch |= crtc_pitch << 16;
+ WREG32(RADEON_CRTC_PITCH + radeon_crtc->crtc_offset, crtc_pitch);
+
/* Wait for update_pending to go high. */
for (i = 0; i < rdev->usec_timeout; i++) {
if (RREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset) & RADEON_CRTC_OFFSET__GUI_TRIG_OFFSET)
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index b2d22e25eee1..b87dd551e939 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -41,6 +41,7 @@
#include <drm/drm_device.h>
#include <drm/drm_vblank.h>
+#include <drm/drm_fourcc.h>
#include "atom.h"
#include "radeon.h"
@@ -118,6 +119,7 @@ void avivo_wait_for_vblank(struct radeon_device *rdev, int crtc)
void rs600_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base, bool async)
{
struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
+ struct drm_framebuffer *fb = radeon_crtc->base.primary->fb;
u32 tmp = RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset);
int i;
@@ -125,9 +127,13 @@ void rs600_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base, boo
tmp |= AVIVO_D1GRPH_UPDATE_LOCK;
WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
- /* update the scanout addresses */
+ /* flip at hsync for async, default is vsync */
WREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset,
async ? AVIVO_D1GRPH_SURFACE_UPDATE_H_RETRACE_EN : 0);
+ /* update pitch */
+ WREG32(AVIVO_D1GRPH_PITCH + radeon_crtc->crtc_offset,
+ fb->pitches[0] / fb->format->cpp[0]);
+ /* update the scanout addresses */
WREG32(AVIVO_D1GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
(u32)crtc_base);
WREG32(AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 74499307285b..e592e57be1bb 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -32,6 +32,7 @@
#include <drm/drm_device.h>
#include <drm/radeon_drm.h>
+#include <drm/drm_fourcc.h>
#include "atom.h"
#include "avivod.h"
@@ -809,6 +810,7 @@ u32 rv770_get_xclk(struct radeon_device *rdev)
void rv770_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base, bool async)
{
struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
+ struct drm_framebuffer *fb = radeon_crtc->base.primary->fb;
u32 tmp = RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset);
int i;
@@ -816,9 +818,13 @@ void rv770_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base, boo
tmp |= AVIVO_D1GRPH_UPDATE_LOCK;
WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
- /* update the scanout addresses */
+ /* flip at hsync for async, default is vsync */
WREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset,
async ? AVIVO_D1GRPH_SURFACE_UPDATE_H_RETRACE_EN : 0);
+ /* update pitch */
+ WREG32(AVIVO_D1GRPH_PITCH + radeon_crtc->crtc_offset,
+ fb->pitches[0] / fb->format->cpp[0]);
+ /* update the scanout addresses */
if (radeon_crtc->crtc_id) {
WREG32(D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
WREG32(D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
--
2.25.1
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