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| author | Ben Skeggs <bskeggs@redhat.com> | 2019-05-29 15:44:57 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-07 18:59:12 +0200 |
| commit | ecce6020a0527642ecced073b126cba1cf99c2e5 (patch) | |
| tree | cd3fbe80167451ba7eedd0727fa783e4f2c61452 /drivers | |
| parent | 6ad134a3308353072ac634906fe16fe2059ae73f (diff) | |
| download | linux-stable-ecce6020a0527642ecced073b126cba1cf99c2e5.tar.gz linux-stable-ecce6020a0527642ecced073b126cba1cf99c2e5.tar.bz2 linux-stable-ecce6020a0527642ecced073b126cba1cf99c2e5.zip | |
drm/nouveau/kms/tu102-: disable input lut when input is already FP16
[ Upstream commit 1e339ab2ac3c769c1b06b9fb7d532f8495ebc56d ]
On Turing, an input LUT is required to transform inputs in fixed-point
formats to FP16 for the internal display pipe. We provide an identity
mapping whenever a window is enabled for this reason.
HW has error checks to ensure when the input is already FP16, that the
input LUT is also disabled.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/dispnv50/wndw.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.c b/drivers/gpu/drm/nouveau/dispnv50/wndw.c index 283ff690350e..50303ec194bb 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c +++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c @@ -320,7 +320,9 @@ nv50_wndw_atomic_check_lut(struct nv50_wndw *wndw, asyh->wndw.olut &= ~BIT(wndw->id); } - if (!ilut && wndw->func->ilut_identity) { + if (!ilut && wndw->func->ilut_identity && + asyw->state.fb->format->format != DRM_FORMAT_XBGR16161616F && + asyw->state.fb->format->format != DRM_FORMAT_ABGR16161616F) { static struct drm_property_blob dummy = {}; ilut = &dummy; } |