diff options
| author |   Ilia Mirkin <imirkin@alum.mit.edu> | 2017-12-30 23:35:28 -0500 |
|---|---|---|
| committer |   Ben Skeggs <bskeggs@redhat.com> | 2018-02-02 15:24:06 +1000 |
| commit | e75182f68b7b3a073e33b89ee4c1688160755930 (patch) | |
| tree | cbcc8a891d92f17ff5aa1ebf9a346996fb1e9a0a /drivers/gpu | |
| parent | drm/nouveau/kms/nv50: prepare for double-buffered LUTs (diff) | |
| download | linux-dev-e75182f68b7b3a073e33b89ee4c1688160755930.tar.xz linux-dev-e75182f68b7b3a073e33b89ee4c1688160755930.zip | |
drm/nouveau/kms/nv50: use "low res" lut for indexed mode
This is what was done prior to the big refactor in kernel 3.8, and what
was done by xf86-video-nv. Experimentally, it seems like there's some
sort of issue with the high-res lut to be used there. Tested on G92.
This ends up mattering because fbcon/fbdev chooses the C8 fb format for
low-vram systems, which can occur with some IGP-based configurations
with little "stolen" vram.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80675
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_display.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 2293b8ff56c6..f4daf8c55de1 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -1805,12 +1805,14 @@ nv50_head_lut_set(struct nv50_head *head, struct nv50_head_atom *asyh) if ((push = evo_wait(core, 7))) { if (core->base.user.oclass < G82_DISP_CORE_CHANNEL_DMA) { evo_mthd(push, 0x0840 + (head->base.index * 0x400), 2); - evo_data(push, 0xc0000000); + evo_data(push, asyh->base.depth == 8 ? + 0x80000000 : 0xc0000000); evo_data(push, asyh->lut.offset >> 8); } else if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA) { evo_mthd(push, 0x0840 + (head->base.index * 0x400), 2); - evo_data(push, 0xc0000000); + evo_data(push, asyh->base.depth == 8 ? + 0x80000000 : 0xc0000000); evo_data(push, asyh->lut.offset >> 8); evo_mthd(push, 0x085c + (head->base.index * 0x400), 1); evo_data(push, asyh->lut.handle); |