[Nouveau] [PATCH] bios/perf: Correctly parse PCIe speeds for ver 0x40
Karol Herbst
karolherbst at gmail.com
Wed Apr 5 21:46:00 UTC 2017
Signed-off-by: Karol Herbst <karolherbst at gmail.com>
---
drm/nouveau/nvkm/subdev/bios/perf.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/drm/nouveau/nvkm/subdev/bios/perf.c b/drm/nouveau/nvkm/subdev/bios/perf.c
index c3068358..9fdf3736 100644
--- a/drm/nouveau/nvkm/subdev/bios/perf.c
+++ b/drm/nouveau/nvkm/subdev/bios/perf.c
@@ -146,18 +146,16 @@ nvbios_perfEp(struct nvkm_bios *bios, int idx,
break;
case 0x40:
info->voltage = nvbios_rd08(bios, perf + 0x02);
- switch (nvbios_rd08(bios, perf + 0xb) & 0x3) {
- case 0:
- info->pcie_speed = NVKM_PCIE_SPEED_5_0;
- break;
- case 3:
- case 1:
+ switch (nvbios_rd08(bios, perf + 0xb) & 0x21) {
+ case 0x01:
info->pcie_speed = NVKM_PCIE_SPEED_2_5;
break;
- case 2:
- info->pcie_speed = NVKM_PCIE_SPEED_8_0;
+ case 0x20:
+ info->pcie_speed = NVKM_PCIE_SPEED_5_0;
break;
+ case 0x00:
default:
+ info->pcie_speed = NVKM_PCIE_SPEED_8_0;
break;
}
info->pcie_width = 0xff;
--
2.12.2
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