From: Alex Deucher <alexander.deuc...@amd.com> Most asics just use the hw default value which requires no explicit programming. For those that need a different value, the vbios will program it properly. As such, there's no need to program these registers explicitly in the driver. Changing these registers requires a reload of all data in vram otherwise its contents will be scambled.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=40103 Signed-off-by: Alex Deucher <alexander.deuc...@amd.com> Cc: sta...@kernel.org --- drivers/gpu/drm/radeon/evergreen.c | 3 ++- drivers/gpu/drm/radeon/ni.c | 3 ++- drivers/gpu/drm/radeon/rv770.c | 3 ++- 3 files changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index e8a7467..276509d 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -2078,7 +2078,8 @@ static void evergreen_gpu_init(struct radeon_device *rdev) WREG32(DMIF_ADDR_CONFIG, gb_addr_config); WREG32(HDP_ADDR_CONFIG, gb_addr_config); - evergreen_program_channel_remap(rdev); + /* Use the hw default or as set up by the vbios */ + /* evergreen_program_channel_remap(rdev);*/ num_shader_engines = ((RREG32(GB_ADDR_CONFIG) & NUM_SHADER_ENGINES(3)) >> 12) + 1; grbm_gfx_index = INSTANCE_BROADCAST_WRITES; diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 99fbd79..f15bf6b 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -842,7 +842,8 @@ static void cayman_gpu_init(struct radeon_device *rdev) WREG32(DMIF_ADDR_CONFIG, gb_addr_config); WREG32(HDP_ADDR_CONFIG, gb_addr_config); - cayman_program_channel_remap(rdev); + /* Use the hw default or as set up by the vbios */ + /* cayman_program_channel_remap(rdev); */ /* primary versions */ WREG32(CC_RB_BACKEND_DISABLE, cc_rb_backend_disable); diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 4720d00..98e3b7e 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -785,7 +785,8 @@ static void rv770_gpu_init(struct radeon_device *rdev) WREG32(DCP_TILING_CONFIG, (gb_tiling_config & 0xffff)); WREG32(HDP_TILING_CONFIG, (gb_tiling_config & 0xffff)); - rv770_program_channel_remap(rdev); + /* Use the hw default or as set up by the vbios */ + /* rv770_program_channel_remap(rdev); */ WREG32(CC_RB_BACKEND_DISABLE, cc_rb_backend_disable); WREG32(CC_GC_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config); -- 1.7.1.1 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel
