diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2010-11-23 01:56:18 +0300 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-11-23 02:23:09 +0300 |
| commit | 9535ab7323351bacf02d82af79921df1d6594969 (patch) | |
| tree | 03fcb11a215b24968c8034d0311b54336ddc3d8e /drivers/gpu/drm/radeon/rv770.c | |
| parent | 27641c3f003e7f3b6585c01d8a788883603eb262 (diff) | |
| download | linux-9535ab7323351bacf02d82af79921df1d6594969.tar.xz | |
drm/radeon/kms: setup mc chremap properly on r7xx/evergreen
Should improve performance slightly and possibly fix some
issues.
Signed-off-by: Alex Deucher <alexdeucher@gmail.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.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 4dfead8cee33..24ebd0879c4b 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -489,6 +489,49 @@ static u32 r700_get_tile_pipe_to_backend_map(struct radeon_device *rdev, return backend_map; } +static void rv770_program_channel_remap(struct radeon_device *rdev) +{ + u32 tcp_chan_steer, mc_shared_chremap, tmp; + bool force_no_swizzle; + + switch (rdev->family) { + case CHIP_RV770: + case CHIP_RV730: + force_no_swizzle = false; + break; + case CHIP_RV710: + case CHIP_RV740: + default: + force_no_swizzle = true; + break; + } + + tmp = RREG32(MC_SHARED_CHMAP); + switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) { + case 0: + case 1: + default: + /* default mapping */ + mc_shared_chremap = 0x00fac688; + break; + case 2: + case 3: + if (force_no_swizzle) + mc_shared_chremap = 0x00fac688; + else + mc_shared_chremap = 0x00bbc298; + break; + } + + if (rdev->family == CHIP_RV740) + tcp_chan_steer = 0x00ef2a60; + else + tcp_chan_steer = 0x00fac688; + + WREG32(TCP_CHAN_STEER, tcp_chan_steer); + WREG32(MC_SHARED_CHREMAP, mc_shared_chremap); +} + static void rv770_gpu_init(struct radeon_device *rdev) { int i, j, num_qd_pipes; @@ -688,6 +731,8 @@ 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); + WREG32(CC_RB_BACKEND_DISABLE, cc_rb_backend_disable); WREG32(CC_GC_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config); WREG32(GC_USER_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config); |