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authorJerome Glisse <jglisse@redhat.com>2012-07-27 16:32:24 -0400
committerAlex Deucher <alexander.deucher@amd.com>2012-08-13 10:50:52 -0400
commit81ee8fb6b52ec69eeed37fe7943446af1dccecc5 (patch)
treed1555065fd14f68eb17863ab77a67ca8d1b65165 /drivers
parent5b23c9045a8b61352986270b2d109edf5085e113 (diff)
downloadlinux-linaro-stable-81ee8fb6b52ec69eeed37fe7943446af1dccecc5.tar.gz
drm/radeon: do not reenable crtc after moving vram start address
It seems we can not update the crtc scanout address. After disabling crtc, update to base address do not take effect after crtc being reenable leading to at least frame being scanout from the old crtc base address. Disabling crtc display request lead to same behavior. So after changing the vram address if we don't keep crtc disabled we will have the GPU trying to read some random system memory address with some iommu this will broke the crtc engine and will lead to broken display and iommu error message. So to avoid this, disable crtc. For flicker less boot we will need to avoid moving the vram start address. This patch should also fix : https://bugs.freedesktop.org/show_bug.cgi?id=42373 Cc: <stable@vger.kernel.org> Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/radeon/evergreen.c57
-rw-r--r--drivers/gpu/drm/radeon/radeon_asic.h8
-rw-r--r--drivers/gpu/drm/radeon/rv515.c13
3 files changed, 2 insertions, 76 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index f4ef24f11419..e93b80a6d4e9 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1229,24 +1229,8 @@ void evergreen_agp_enable(struct radeon_device *rdev)
void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save)
{
- save->vga_control[0] = RREG32(D1VGA_CONTROL);
- save->vga_control[1] = RREG32(D2VGA_CONTROL);
save->vga_render_control = RREG32(VGA_RENDER_CONTROL);
save->vga_hdp_control = RREG32(VGA_HDP_CONTROL);
- save->crtc_control[0] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET);
- save->crtc_control[1] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET);
- if (rdev->num_crtc >= 4) {
- save->vga_control[2] = RREG32(EVERGREEN_D3VGA_CONTROL);
- save->vga_control[3] = RREG32(EVERGREEN_D4VGA_CONTROL);
- save->crtc_control[2] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET);
- save->crtc_control[3] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET);
- }
- if (rdev->num_crtc >= 6) {
- save->vga_control[4] = RREG32(EVERGREEN_D5VGA_CONTROL);
- save->vga_control[5] = RREG32(EVERGREEN_D6VGA_CONTROL);
- save->crtc_control[4] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET);
- save->crtc_control[5] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
- }
/* Stop all video */
WREG32(VGA_RENDER_CONTROL, 0);
@@ -1357,47 +1341,6 @@ void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *s
/* Unlock host access */
WREG32(VGA_HDP_CONTROL, save->vga_hdp_control);
mdelay(1);
- /* Restore video state */
- WREG32(D1VGA_CONTROL, save->vga_control[0]);
- WREG32(D2VGA_CONTROL, save->vga_control[1]);
- if (rdev->num_crtc >= 4) {
- WREG32(EVERGREEN_D3VGA_CONTROL, save->vga_control[2]);
- WREG32(EVERGREEN_D4VGA_CONTROL, save->vga_control[3]);
- }
- if (rdev->num_crtc >= 6) {
- WREG32(EVERGREEN_D5VGA_CONTROL, save->vga_control[4]);
- WREG32(EVERGREEN_D6VGA_CONTROL, save->vga_control[5]);
- }
- WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 1);
- WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 1);
- if (rdev->num_crtc >= 4) {
- WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 1);
- WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 1);
- }
- if (rdev->num_crtc >= 6) {
- WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 1);
- WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 1);
- }
- WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, save->crtc_control[0]);
- WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, save->crtc_control[1]);
- if (rdev->num_crtc >= 4) {
- WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, save->crtc_control[2]);
- WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, save->crtc_control[3]);
- }
- if (rdev->num_crtc >= 6) {
- WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, save->crtc_control[4]);
- WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, save->crtc_control[5]);
- }
- WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
- WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
- if (rdev->num_crtc >= 4) {
- WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
- WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
- }
- if (rdev->num_crtc >= 6) {
- WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
- WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
- }
WREG32(VGA_RENDER_CONTROL, save->vga_render_control);
}
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index f4af24310438..0d445e7d00d1 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -255,13 +255,10 @@ extern int rs690_mc_wait_for_idle(struct radeon_device *rdev);
* rv515
*/
struct rv515_mc_save {
- u32 d1vga_control;
- u32 d2vga_control;
u32 vga_render_control;
u32 vga_hdp_control;
- u32 d1crtc_control;
- u32 d2crtc_control;
};
+
int rv515_init(struct radeon_device *rdev);
void rv515_fini(struct radeon_device *rdev);
uint32_t rv515_mc_rreg(struct radeon_device *rdev, uint32_t reg);
@@ -389,11 +386,10 @@ void r700_cp_fini(struct radeon_device *rdev);
* evergreen
*/
struct evergreen_mc_save {
- u32 vga_control[6];
u32 vga_render_control;
u32 vga_hdp_control;
- u32 crtc_control[6];
};
+
void evergreen_pcie_gart_tlb_flush(struct radeon_device *rdev);
int evergreen_init(struct radeon_device *rdev);
void evergreen_fini(struct radeon_device *rdev);
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index a12fbcc8ccb6..aa8ef491ef3c 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -281,12 +281,8 @@ int rv515_debugfs_ga_info_init(struct radeon_device *rdev)
void rv515_mc_stop(struct radeon_device *rdev, struct rv515_mc_save *save)
{
- save->d1vga_control = RREG32(R_000330_D1VGA_CONTROL);
- save->d2vga_control = RREG32(R_000338_D2VGA_CONTROL);
save->vga_render_control = RREG32(R_000300_VGA_RENDER_CONTROL);
save->vga_hdp_control = RREG32(R_000328_VGA_HDP_CONTROL);
- save->d1crtc_control = RREG32(R_006080_D1CRTC_CONTROL);
- save->d2crtc_control = RREG32(R_006880_D2CRTC_CONTROL);
/* Stop all video */
WREG32(R_0068E8_D2CRTC_UPDATE_LOCK, 0);
@@ -311,15 +307,6 @@ void rv515_mc_resume(struct radeon_device *rdev, struct rv515_mc_save *save)
/* Unlock host access */
WREG32(R_000328_VGA_HDP_CONTROL, save->vga_hdp_control);
mdelay(1);
- /* Restore video state */
- WREG32(R_000330_D1VGA_CONTROL, save->d1vga_control);
- WREG32(R_000338_D2VGA_CONTROL, save->d2vga_control);
- WREG32(R_0060E8_D1CRTC_UPDATE_LOCK, 1);
- WREG32(R_0068E8_D2CRTC_UPDATE_LOCK, 1);
- WREG32(R_006080_D1CRTC_CONTROL, save->d1crtc_control);
- WREG32(R_006880_D2CRTC_CONTROL, save->d2crtc_control);
- WREG32(R_0060E8_D1CRTC_UPDATE_LOCK, 0);
- WREG32(R_0068E8_D2CRTC_UPDATE_LOCK, 0);
WREG32(R_000300_VGA_RENDER_CONTROL, save->vga_render_control);
}