Am 27.08.2014 um 05:04 schrieb Alex Deucher: > Fixes avoids and error message on boot which is harmless, > but confusing to users. > > Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
The attached patch fixes the underlying issue for me on RS780. Does it also work on RV770? If yes than it's probably the better approach. Christian. > --- > drivers/gpu/drm/radeon/uvd_v1_0.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/gpu/drm/radeon/uvd_v1_0.c > b/drivers/gpu/drm/radeon/uvd_v1_0.c > index e251624..82e4fa6 100644 > --- a/drivers/gpu/drm/radeon/uvd_v1_0.c > +++ b/drivers/gpu/drm/radeon/uvd_v1_0.c > @@ -325,6 +325,13 @@ int uvd_v1_0_start(struct radeon_device *rdev) > > WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3)); > > + if (rdev->family == CHIP_RV770) { > + WREG32_P(UVD_SOFT_RESET, VCPU_SOFT_RESET, ~VCPU_SOFT_RESET); > + mdelay(10); > + WREG32_P(UVD_SOFT_RESET, 0, ~VCPU_SOFT_RESET); > + mdelay(10); > + } > + > for (i = 0; i < 10; ++i) { > uint32_t status; > for (j = 0; j < 100; ++j) { -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-drm-radeon-enable-RB_ARB-before-resetting-the-VCPU.patch Type: text/x-diff Size: 1156 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20140827/3f76150e/attachment.patch>