diff options
| author | Ilia Mirkin <imirkin@alum.mit.edu> | 2019-09-06 07:13:59 +0300 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2020-01-15 03:49:58 +0300 |
| commit | 131992709dc4c6140cec3b352f820cb873f7dd50 (patch) | |
| tree | 071b2b1facb94d5a9c3c1a40fd35682e6b0b4ad1 /drivers/gpu/drm/nouveau/dispnv50/headc57d.c | |
| parent | 11a8630917b681ff2f5320938b8d76b354c89d34 (diff) | |
| download | linux-131992709dc4c6140cec3b352f820cb873f7dd50.tar.xz | |
drm/nouveau/kms/gf119-: allow both 256- and 1024-sized LUTs to be used
The hardware supports either size. Also add checks to ensure that only
these two sizes may be used for supplying a LUT.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/dispnv50/headc57d.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/dispnv50/headc57d.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv50/headc57d.c b/drivers/gpu/drm/nouveau/dispnv50/headc57d.c index 32a7f9e85fb0..938d910a1b1e 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/headc57d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/headc57d.c @@ -151,17 +151,20 @@ headc57d_olut_load(struct drm_color_lut *in, int size, void __iomem *mem) writew(readw(mem - 4), mem + 4); } -void -headc57d_olut(struct nv50_head *head, struct nv50_head_atom *asyh) +bool +headc57d_olut(struct nv50_head *head, struct nv50_head_atom *asyh, int size) { + if (size != 0 && size != 256 && size != 1024) + return false; + asyh->olut.mode = 2; /* DIRECT10 */ asyh->olut.size = 4 /* VSS header. */ + 1024 + 1 /* Entries. */; asyh->olut.output_mode = 1; /* INTERPOLATE_ENABLE. */ - if (asyh->state.gamma_lut && - asyh->state.gamma_lut->length / sizeof(struct drm_color_lut) == 256) + if (size == 256) asyh->olut.load = headc57d_olut_load_8; else asyh->olut.load = headc57d_olut_load; + return true; } static void @@ -194,6 +197,7 @@ headc57d = { .mode = headc57d_mode, .olut = headc57d_olut, .olut_identity = true, + .olut_size = 1024, .olut_set = headc57d_olut_set, .olut_clr = headc57d_olut_clr, .curs_layout = head917d_curs_layout, |