summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm
diff options
context:
space:
mode:
authorDave Airlie <airlied@redhat.com>2010-07-22 09:57:13 +1000
committerDave Airlie <airlied@redhat.com>2010-07-22 09:57:13 +1000
commit29508eb66bfacdef324d2199eeaea31e0cdfaa29 (patch)
tree8f75757c0696ad9ac0c671cc47d49524fbbae428 /drivers/gpu/drm
parentc42750b0261274107ae85c894c088e618a3e38b9 (diff)
drm/radeon/kms: drop taking lock around crtc lookup.
We only add/remove crtcs at driver load, you cannot remove when the GPU is running a CS packet since the fd is open, when GPU hotplugging on radeons actually is needed all this locking needs a review and I've started re-working kms core locking to deal with this better. But for now avoid long delays in CS processing when hotplug detect is happening in a different thread. this fixes a regression introduced with hotplug detection. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/radeon/evergreen_cs.c2
-rw-r--r--drivers/gpu/drm/radeon/r100.c2
-rw-r--r--drivers/gpu/drm/radeon/r600_cs.c3
3 files changed, 1 insertions, 6 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index 010963d4570f..345a75a03c96 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -333,7 +333,6 @@ static int evergreen_cs_packet_parse_vline(struct radeon_cs_parser *p)
header = radeon_get_ib_value(p, h_idx);
crtc_id = radeon_get_ib_value(p, h_idx + 2 + 7 + 1);
reg = CP_PACKET0_GET_REG(header);
- mutex_lock(&p->rdev->ddev->mode_config.mutex);
obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
if (!obj) {
DRM_ERROR("cannot find crtc %d\n", crtc_id);
@@ -368,7 +367,6 @@ static int evergreen_cs_packet_parse_vline(struct radeon_cs_parser *p)
}
}
out:
- mutex_unlock(&p->rdev->ddev->mode_config.mutex);
return r;
}
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index aab5ba040bd6..a89a15ab524d 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -1230,7 +1230,6 @@ int r100_cs_packet_parse_vline(struct radeon_cs_parser *p)
header = radeon_get_ib_value(p, h_idx);
crtc_id = radeon_get_ib_value(p, h_idx + 5);
reg = CP_PACKET0_GET_REG(header);
- mutex_lock(&p->rdev->ddev->mode_config.mutex);
obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
if (!obj) {
DRM_ERROR("cannot find crtc %d\n", crtc_id);
@@ -1264,7 +1263,6 @@ int r100_cs_packet_parse_vline(struct radeon_cs_parser *p)
ib[h_idx + 3] |= RADEON_ENG_DISPLAY_SELECT_CRTC1;
}
out:
- mutex_unlock(&p->rdev->ddev->mode_config.mutex);
return r;
}
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index c39c1bc13016..144c32d37136 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -585,7 +585,7 @@ static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
header = radeon_get_ib_value(p, h_idx);
crtc_id = radeon_get_ib_value(p, h_idx + 2 + 7 + 1);
reg = CP_PACKET0_GET_REG(header);
- mutex_lock(&p->rdev->ddev->mode_config.mutex);
+
obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
if (!obj) {
DRM_ERROR("cannot find crtc %d\n", crtc_id);
@@ -620,7 +620,6 @@ static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
ib[h_idx + 4] = AVIVO_D2MODE_VLINE_STATUS >> 2;
}
out:
- mutex_unlock(&p->rdev->ddev->mode_config.mutex);
return r;
}