[Nouveau] [PATCH] pci: enable c800 magic for Lenovo Y510P

[Ilia Mirkin]

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=70354#c75
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---

Unclear if we want this. Someone with the same vendor/subvendor pci
ids didn't have any issues with nouveau at all:

https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1327624

[they had other issues though]

Not sure if this will do more harm than good.

 drm/nouveau/nvkm/engine/device/pci.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drm/nouveau/nvkm/engine/device/pci.c b/drm/nouveau/nvkm/engine/device/pci.c
index e8eb14e..c5fc909 100644
--- a/drm/nouveau/nvkm/engine/device/pci.c
+++ b/drm/nouveau/nvkm/engine/device/pci.c
@@ -259,6 +259,12 @@ nvkm_device_pci_10de_0df4[] = {
 };
 
 static const struct nvkm_device_pci_vendor
+nvkm_device_pci_10de_0fcd[] = {
+	{ 0x17aa, 0x3801, NULL, { .War00C800_0 = true } }, /* Lenovo Y510P */
+	{}
+};
+
+static const struct nvkm_device_pci_vendor
 nvkm_device_pci_10de_0fd2[] = {
 	{ 0x1028, 0x0595, "GeForce GT 640M LE" },
 	{ 0x1028, 0x05b2, "GeForce GT 640M LE" },
@@ -1349,7 +1355,7 @@ nvkm_device_pci_10de[] = {
 	{ 0x0fc6, "GeForce GTX 650" },
 	{ 0x0fc8, "GeForce GT 740" },
 	{ 0x0fc9, "GeForce GT 730" },
-	{ 0x0fcd, "GeForce GT 755M" },
+	{ 0x0fcd, "GeForce GT 755M", nvkm_device_pci_10de_0fcd },
 	{ 0x0fce, "GeForce GT 640M LE" },
 	{ 0x0fd1, "GeForce GT 650M" },
 	{ 0x0fd2, "GeForce GT 640M", nvkm_device_pci_10de_0fd2 },
-- 
2.4.10