diff options
author | Jerome Glisse <jglisse@redhat.com> | 2010-02-04 20:36:39 +0100 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2010-02-05 11:43:51 +1000 |
commit | 062b389c8704e539e234cfd67c7e034a514f50bf (patch) | |
tree | a1bb6e2ce15567db9331fc57e95f6508f636000e /drivers | |
parent | c38c7b64a2747a211c3a6e8e5919ee25ccd474e7 (diff) | |
download | linux-exynos-062b389c8704e539e234cfd67c7e034a514f50bf.tar.gz linux-exynos-062b389c8704e539e234cfd67c7e034a514f50bf.tar.bz2 linux-exynos-062b389c8704e539e234cfd67c7e034a514f50bf.zip |
drm/radeon/kms: fix regression rendering issue on R6XX/R7XX
It seems that some R6XX/R7XX silently ignore HDP flush when
programmed through ring, this patch addback an ioctl callback
to allow R6XX/R7XX hw to perform such flush through MMIO in
order to fix a regression. For more details see:
http://bugzilla.kernel.org/show_bug.cgi?id=15186
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpu/drm/radeon/r600.c | 15 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 7 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.h | 11 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_gem.c | 3 |
4 files changed, 36 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 8c94040cb7f2..45d565bae71b 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -2900,3 +2900,18 @@ int r600_debugfs_mc_info_init(struct radeon_device *rdev) return 0; #endif } + +/** + * r600_ioctl_wait_idle - flush host path cache on wait idle ioctl + * rdev: radeon device structure + * bo: buffer object struct which userspace is waiting for idle + * + * Some R6XX/R7XX doesn't seems to take into account HDP flush performed + * through ring buffer, this leads to corruption in rendering, see + * http://bugzilla.kernel.org/show_bug.cgi?id=15186 to avoid this we + * directly perform HDP flush by writing register through MMIO. + */ +void r600_ioctl_wait_idle(struct radeon_device *rdev, struct radeon_bo *bo) +{ + WREG32(R_005480_HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1); +} diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 2d5f2bfa7201..37150fc406b5 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -661,6 +661,13 @@ struct radeon_asic { void (*hpd_fini)(struct radeon_device *rdev); bool (*hpd_sense)(struct radeon_device *rdev, enum radeon_hpd_id hpd); void (*hpd_set_polarity)(struct radeon_device *rdev, enum radeon_hpd_id hpd); + /* ioctl hw specific callback. Some hw might want to perform special + * operation on specific ioctl. For instance on wait idle some hw + * might want to perform and HDP flush through MMIO as it seems that + * some R6XX/R7XX hw doesn't take HDP flush into account if programmed + * through ring. + */ + void (*ioctl_wait_idle)(struct radeon_device *rdev, struct radeon_bo *bo); }; /* diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index f2fbd2e4e9df..05ee1aeac3fd 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -117,6 +117,7 @@ static struct radeon_asic r100_asic = { .hpd_fini = &r100_hpd_fini, .hpd_sense = &r100_hpd_sense, .hpd_set_polarity = &r100_hpd_set_polarity, + .ioctl_wait_idle = NULL, }; @@ -176,6 +177,7 @@ static struct radeon_asic r300_asic = { .hpd_fini = &r100_hpd_fini, .hpd_sense = &r100_hpd_sense, .hpd_set_polarity = &r100_hpd_set_polarity, + .ioctl_wait_idle = NULL, }; /* @@ -219,6 +221,7 @@ static struct radeon_asic r420_asic = { .hpd_fini = &r100_hpd_fini, .hpd_sense = &r100_hpd_sense, .hpd_set_polarity = &r100_hpd_set_polarity, + .ioctl_wait_idle = NULL, }; @@ -267,6 +270,7 @@ static struct radeon_asic rs400_asic = { .hpd_fini = &r100_hpd_fini, .hpd_sense = &r100_hpd_sense, .hpd_set_polarity = &r100_hpd_set_polarity, + .ioctl_wait_idle = NULL, }; @@ -323,6 +327,7 @@ static struct radeon_asic rs600_asic = { .hpd_fini = &rs600_hpd_fini, .hpd_sense = &rs600_hpd_sense, .hpd_set_polarity = &rs600_hpd_set_polarity, + .ioctl_wait_idle = NULL, }; @@ -370,6 +375,7 @@ static struct radeon_asic rs690_asic = { .hpd_fini = &rs600_hpd_fini, .hpd_sense = &rs600_hpd_sense, .hpd_set_polarity = &rs600_hpd_set_polarity, + .ioctl_wait_idle = NULL, }; @@ -421,6 +427,7 @@ static struct radeon_asic rv515_asic = { .hpd_fini = &rs600_hpd_fini, .hpd_sense = &rs600_hpd_sense, .hpd_set_polarity = &rs600_hpd_set_polarity, + .ioctl_wait_idle = NULL, }; @@ -463,6 +470,7 @@ static struct radeon_asic r520_asic = { .hpd_fini = &rs600_hpd_fini, .hpd_sense = &rs600_hpd_sense, .hpd_set_polarity = &rs600_hpd_set_polarity, + .ioctl_wait_idle = NULL, }; /* @@ -504,6 +512,7 @@ void r600_hpd_fini(struct radeon_device *rdev); bool r600_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd); void r600_hpd_set_polarity(struct radeon_device *rdev, enum radeon_hpd_id hpd); +extern void r600_ioctl_wait_idle(struct radeon_device *rdev, struct radeon_bo *bo); static struct radeon_asic r600_asic = { .init = &r600_init, @@ -538,6 +547,7 @@ static struct radeon_asic r600_asic = { .hpd_fini = &r600_hpd_fini, .hpd_sense = &r600_hpd_sense, .hpd_set_polarity = &r600_hpd_set_polarity, + .ioctl_wait_idle = r600_ioctl_wait_idle, }; /* @@ -582,6 +592,7 @@ static struct radeon_asic rv770_asic = { .hpd_fini = &r600_hpd_fini, .hpd_sense = &r600_hpd_sense, .hpd_set_polarity = &r600_hpd_set_polarity, + .ioctl_wait_idle = r600_ioctl_wait_idle, }; #endif diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index 0e1325e18534..db8e9a355a01 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -308,6 +308,9 @@ int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, } robj = gobj->driver_private; r = radeon_bo_wait(robj, NULL, false); + /* callback hw specific functions if any */ + if (robj->rdev->asic->ioctl_wait_idle) + robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj); mutex_lock(&dev->struct_mutex); drm_gem_object_unreference(gobj); mutex_unlock(&dev->struct_mutex); |