drm/nouveau/bios/perf: parse the pci speed from the bios for tesla and newer cards (c6e2f9bc) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/perf.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -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,

+16 −0

Original line number	Diff line number	Diff line
		@@ -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;