[PATCH 5.10 062/142] drm/nouveau/dispnv50: Restore pushing of all data.

Greg Kroah-Hartman
2021-02-02T20:01:54Z

From: Bastian Beranek <bastian.beischer@rwth-aachen.de>

commit fd55b61ebd31449549e14c33574825d64de2b29b upstream.

Commit f844eb485eb056ad3b67e49f95cbc6c685a73db4 introduced a regression for
NV50, which lead to visual artifacts, tearing and eventual crashes.

In the changes of f844eb485eb056ad3b67e49f95cbc6c685a73db4 only the first line
was correctly translated to the new NVIDIA header macros:

- PUSH_NVSQ(push, NV827C, 0x0110, 0,
- 0x0114, 0);
+ PUSH_MTHD(push, NV827C, SET_PROCESSING,
+ NVDEF(NV827C, SET_PROCESSING, USE_GAIN_OFS, DISABLE));

The lower part ("0x0114, 0") was probably omitted by accident.

This patch restores the push of the missing data and fixes the regression.

Signed-off-by: Bastian Beranek <bastian.beischer@rwth-aachen.de>
Fixes: f844eb485eb05 ("drm/nouveau/kms/nv50-: use NVIDIA's headers for wndw image_set()")
Link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/14
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/nouveau/dispnv50/base507c.c b/drivers/gpu/drm/nouveau/dispnv50/base507c.c
index 302d4e6fc52f..788db043a342 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/base507c.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/base507c.c
@@ -88,7 +88,11 @@ base507c_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
NVVAL(NV507C, SET_CONVERSION, OFS, 0x64));
} else {
PUSH_MTHD(push, NV507C, SET_PROCESSING,
- NVDEF(NV507C, SET_PROCESSING, USE_GAIN_OFS, DISABLE));
+ NVDEF(NV507C, SET_PROCESSING, USE_GAIN_OFS, DISABLE),
+
+ SET_CONVERSION,
+ NVVAL(NV507C, SET_CONVERSION, GAIN, 0) |
+ NVVAL(NV507C, SET_CONVERSION, OFS, 0));
}

PUSH_MTHD(push, NV507C, SURFACE_SET_OFFSET(0, 0), asyw->image.offset[0] >> 8);
diff --git a/drivers/gpu/drm/nouveau/dispnv50/base827c.c b/drivers/gpu/drm/nouveau/dispnv50/base827c.c
index 18d34096f125..093d4ba6910e 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/base827c.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/base827c.c
@@ -49,7 +49,11 @@ base827c_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
NVVAL(NV827C, SET_CONVERSION, OFS, 0x64));
} else {
PUSH_MTHD(push, NV827C, SET_PROCESSING,
- NVDEF(NV827C, SET_PROCESSING, USE_GAIN_OFS, DISABLE));
+ NVDEF(NV827C, SET_PROCESSING, USE_GAIN_OFS, DISABLE),
+
+ SET_CONVERSION,
+ NVVAL(NV827C, SET_CONVERSION, GAIN, 0) |
+ NVVAL(NV827C, SET_CONVERSION, OFS, 0));
}

PUSH_MTHD(push, NV827C, SURFACE_SET_OFFSET(0, 0), asyw->image.offset[0] >> 8,