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| author | Mauro Rossi <issor.oruam@gmail.com> | 2018-08-12 22:43:02 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-08-27 19:10:19 +0300 |
| commit | 00ecc6e6d4eeba9681ec91f9601a9ed1a68a9e7f (patch) | |
| tree | dd68479a6bf7022b6084b8377e7bae237d3f9424 /drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | |
| parent | bcd47f60ab65c780eef44cc09c0e264453dd455e (diff) | |
| download | linux-00ecc6e6d4eeba9681ec91f9601a9ed1a68a9e7f.tar.xz | |
drm/amdgpu: enable ABGR and XBGR formats (v2)
Add support for DRM_FORMAT_{A,X}BGR8888 in amdgpu with amd dc disabled
(v2) Crossbar registers are defined and used to swap red and blue channels,
keeping the existing coding style in each of the dce modules.
After setting crossbar bits in fb_swap, use bitwise OR for big endian
where required in DCE6 and DCE8 which do not rely on REG_SET_FIELD()
Signed-off-by: Mauro Rossi <issor.oruam@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/dce_v11_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c index e295cc18cae4..4ffb612a4e53 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c @@ -1985,6 +1985,17 @@ static int dce_v11_0_crtc_do_set_base(struct drm_crtc *crtc, /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */ bypass_lut = true; break; + case DRM_FORMAT_XBGR8888: + case DRM_FORMAT_ABGR8888: + fb_format = REG_SET_FIELD(0, GRPH_CONTROL, GRPH_DEPTH, 2); + fb_format = REG_SET_FIELD(fb_format, GRPH_CONTROL, GRPH_FORMAT, 0); + fb_swap = REG_SET_FIELD(fb_swap, GRPH_SWAP_CNTL, GRPH_RED_CROSSBAR, 2); + fb_swap = REG_SET_FIELD(fb_swap, GRPH_SWAP_CNTL, GRPH_BLUE_CROSSBAR, 2); +#ifdef __BIG_ENDIAN + fb_swap = REG_SET_FIELD(fb_swap, GRPH_SWAP_CNTL, GRPH_ENDIAN_SWAP, + ENDIAN_8IN32); +#endif + break; default: DRM_ERROR("Unsupported screen format %s\n", drm_get_format_name(target_fb->format->format, &format_name)); |