drm/nouveau/kms/nv50: use INTERPOLATE_257_UNITY_RANGE LUT on newer chipsets
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Web: https://git.kernel.org/torvalds/c/90df522912ac1fa88836fa1b1b9fa102a48d1f33 Commit: 90df522912ac1fa88836fa1b1b9fa102a48d1f33 Parent: e75182f68b7b3a073e33b89ee4c1688160755930 Refname: refs/heads/master Author: Ben Skeggs <[email protected]> AuthorDate: Fri Jan 12 19:02:05 2018 +1000 Committer: Ben Skeggs <[email protected]> CommitDate: Fri Feb 2 15:24:07 2018 +1000 drm/nouveau/kms/nv50: use INTERPOLATE_257_UNITY_RANGE LUT on newer chipsets For some reason forgotten by history, we've been using a 1025-entry LUT mode, and sparsely filling it with the 256-entry LUT we're handed. Until we land support for the full atomic colour management properties, this commit switches to using the 257-entry mode to fix colour mapping with depth 30 framebuffers. Reported-by: Ilia Mirkin <[email protected]> Signed-off-by: Ben Skeggs <[email protected]> --- drivers/gpu/drm/nouveau/nv50_display.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index f4daf8c55de1..973a41262139 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -1818,7 +1818,7 @@ nv50_head_lut_set(struct nv50_head *head, struct nv50_head_atom *asyh) evo_data(push, asyh->lut.handle); } else { evo_mthd(push, 0x0440 + (head->base.index * 0x300), 4); - evo_data(push, 0x83000000); + evo_data(push, 0x87000000); evo_data(push, asyh->lut.offset >> 8); evo_data(push, 0x00000000); evo_data(push, 0x00000000); @@ -2225,9 +2225,9 @@ nv50_head_lut_load(struct drm_crtc *crtc) writew((*b++ >> 2) + 0x0000, lut + (i * 0x08) + 4); } else { /* 0x6000 interferes with the 14-bit color??? */ - writew((*r++ >> 2) + 0x6000, lut + (i * 0x20) + 0); - writew((*g++ >> 2) + 0x6000, lut + (i * 0x20) + 2); - writew((*b++ >> 2) + 0x6000, lut + (i * 0x20) + 4); + writew((*r++ >> 2) + 0x6000, lut + (i * 0x08) + 0); + writew((*g++ >> 2) + 0x6000, lut + (i * 0x08) + 2); + writew((*b++ >> 2) + 0x6000, lut + (i * 0x08) + 4); } } } -- To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html