diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2013-03-11 19:28:39 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-28 12:17:49 -0700 |
| commit | 76e9f1048758c6067bc20c7c7df8e2147ea9dcef (patch) | |
| tree | c452f0fef5b8e3265ceb368050d7c958b2f93ce7 | |
| parent | 1007a2469889189e7b470bae5a2e53cf6cbfad70 (diff) | |
drm/radeon: fix backend map setup on 1 RB trinity boards
commit 8f612b23a17dce86fef75407e698de6243cc99a1 upstream.
Need to adjust the backend map depending on which RB is
enabled. This is the trinity equivalent of:
f7eb97300832f4fe5fe916c5d84cd2e25169330e
May fix:
https://bugs.freedesktop.org/show_bug.cgi?id=57919
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/radeon/ni.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index c2e13d248cb4..b64e55dac757 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -623,11 +623,22 @@ static void cayman_gpu_init(struct radeon_device *rdev) WREG32(DMA_TILING_CONFIG + DMA0_REGISTER_OFFSET, gb_addr_config); WREG32(DMA_TILING_CONFIG + DMA1_REGISTER_OFFSET, gb_addr_config); - tmp = gb_addr_config & NUM_PIPES_MASK; - tmp = r6xx_remap_render_backend(rdev, tmp, - rdev->config.cayman.max_backends_per_se * - rdev->config.cayman.max_shader_engines, - CAYMAN_MAX_BACKENDS, disabled_rb_mask); + if ((rdev->config.cayman.max_backends_per_se == 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.cayman.max_backends_per_se * + rdev->config.cayman.max_shader_engines, + CAYMAN_MAX_BACKENDS, disabled_rb_mask); + } WREG32(GB_BACKEND_MAP, tmp); cgts_tcc_disable = 0xffff0000; |