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authorJerome Glisse <jglisse@redhat.com>2009-10-01 18:02:12 +0200
committerDave Airlie <airlied@redhat.com>2009-10-02 09:33:52 +1000
commit81cc35bfc19ebe4b823396fe4fef67a923360916 (patch)
treeda9cbddd170b1c93067f9c8e6411cbe02860f3e2 /drivers/gpu/drm/radeon/rv770.c
parent62a8ea3f7bb61e5f92db0a648b7cc566852c36ec (diff)
downloadblackbird-op-linux-81cc35bfc19ebe4b823396fe4fef67a923360916.tar.gz
blackbird-op-linux-81cc35bfc19ebe4b823396fe4fef67a923360916.zip
drm/radeon/kms: Fix R600 write back buffer
This split write back buffer handling into 3 functions, wb_fini for cleanup, wb_enable/wb_disable for enabling/disabling write back used for suspend/resume. This should fix potential issue of letting the write back active before suspending. We need to allocate memory in wb_enable because we can only allocate once GART is running. Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/rv770.c')
-rw-r--r--drivers/gpu/drm/radeon/rv770.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 867d04bc4d39..af20a8d48dca 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -884,9 +884,8 @@ static int rv770_startup(struct radeon_device *rdev)
r = r600_cp_resume(rdev);
if (r)
return r;
- r = r600_wb_init(rdev);
- if (r)
- return r;
+ /* write back buffer are not vital so don't worry about failure */
+ r600_wb_enable(rdev);
return 0;
}
@@ -929,8 +928,8 @@ int rv770_suspend(struct radeon_device *rdev)
/* FIXME: we should wait for ring to be empty */
r700_cp_stop(rdev);
rdev->cp.ready = false;
+ r600_wb_disable(rdev);
rv770_pcie_gart_disable(rdev);
-
/* unpin shaders bo */
radeon_object_unpin(rdev->r600_blit.shader_obj);
return 0;
@@ -1048,6 +1047,7 @@ void rv770_fini(struct radeon_device *rdev)
r600_blit_fini(rdev);
radeon_ring_fini(rdev);
+ r600_wb_fini(rdev);
rv770_pcie_gart_fini(rdev);
radeon_gem_fini(rdev);
radeon_fence_driver_fini(rdev);
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