diff options
| author | Karol Herbst <nouveau@karolherbst.de> | 2015-09-15 18:47:12 +0200 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2016-01-11 11:15:11 +1000 |
| commit | 4c5f6082f29c20924e2c687e4c3ee1f6df721a44 (patch) | |
| tree | 18f8e074977494c684a2a07b1c9158ec9579f524 | |
| parent | 3dae70d730c972a77bb367967b9d507805bf0ede (diff) | |
| download | nouveau-4c5f6082f29c20924e2c687e4c3ee1f6df721a44.tar.gz | |
bios/perf: parse the pci speed from the bios for tesla and newer cards
Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
| -rw-r--r-- | drm/nouveau/include/nvkm/subdev/bios/perf.h | 2 | ||||
| -rw-r--r-- | drm/nouveau/nvkm/subdev/bios/perf.c | 16 |
2 files changed, 18 insertions, 0 deletions
diff --git a/drm/nouveau/include/nvkm/subdev/bios/perf.h b/drm/nouveau/include/nvkm/subdev/bios/perf.h index 7cc2becab..d3bd25010 100644 --- a/drm/nouveau/include/nvkm/subdev/bios/perf.h +++ b/drm/nouveau/include/nvkm/subdev/bios/perf.h @@ -13,6 +13,8 @@ struct nvbios_perfE { u32 vdec; u32 disp; u32 script; + u8 pcie_speed; + u8 pcie_width; }; u16 nvbios_perf_entry(struct nvkm_bios *, int idx, diff --git a/drm/nouveau/nvkm/subdev/bios/perf.c b/drm/nouveau/nvkm/subdev/bios/perf.c index aa7e33b42..636bfb665 100644 --- a/drm/nouveau/nvkm/subdev/bios/perf.c +++ b/drm/nouveau/nvkm/subdev/bios/perf.c @@ -24,6 +24,7 @@ #include <subdev/bios.h> #include <subdev/bios/bit.h> #include <subdev/bios/perf.h> +#include <subdev/pci.h> u16 nvbios_perf_table(struct nvkm_bios *bios, u8 *ver, u8 *hdr, @@ -145,6 +146,21 @@ 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: + info->pcie_speed = NVKM_PCIE_SPEED_2_5; + break; + case 2: + info->pcie_speed = NVKM_PCIE_SPEED_8_0; + break; + default: + break; + } + info->pcie_width = 0xff; break; default: return 0x0000; |