diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2013-01-30 13:57:40 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-01-30 13:57:40 -0500 |
| commit | f7eb97300832f4fe5fe916c5d84cd2e25169330e (patch) | |
| tree | cadeac7be3fbc76c6e5b1ee8459ce504318a4048 | |
| parent | 9200ee4941a6e5d1ec5df88982243686882dff3f (diff) | |
| download | linux-f7eb97300832f4fe5fe916c5d84cd2e25169330e.tar.gz | |
drm/radeon: fix backend map setup on 1 RB sumo boards
Need to adjust the backend map depending on which
RB is enabled.
Fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=892233
Reported-by: Mikko Tiihonen <mikko.tiihonen@iki.fi>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 112da9b3c8ee4c..2270867d8551d7 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -2044,9 +2044,20 @@ static void evergreen_gpu_init(struct radeon_device *rdev) WREG32(HDP_ADDR_CONFIG, gb_addr_config); WREG32(DMA_TILING_CONFIG, gb_addr_config); - tmp = gb_addr_config & NUM_PIPES_MASK; - tmp = r6xx_remap_render_backend(rdev, tmp, rdev->config.evergreen.max_backends, - EVERGREEN_MAX_BACKENDS, disabled_rb_mask); + if ((rdev->config.evergreen.max_backends == 1) && + (rdev->flags & RADEON_IS_IGP)) { + if ((disabled_rb_mask & 3) == 1) { + /* RB0 disabled, RB1 enabled */ + tmp = 0x11111111; + } else { + /* RB1 disabled, RB0 enabled */ + tmp = 0x00000000; + } + } else { + tmp = gb_addr_config & NUM_PIPES_MASK; + tmp = r6xx_remap_render_backend(rdev, tmp, rdev->config.evergreen.max_backends, + EVERGREEN_MAX_BACKENDS, disabled_rb_mask); + } WREG32(GB_BACKEND_MAP, tmp); WREG32(CGTS_SYS_TCC_DISABLE, 0); |