drm/radeon: add r600_get_pcie_lane_support helper (4df5ac26) · Commits · EulixOS / Software / Kernel

drivers/gpu/drm/radeon/r600_dpm.c

+23 −0

Original line number	Diff line number	Diff line
		@@ -1223,3 +1223,26 @@ enum radeon_pcie_gen r600_get_pcie_gen_support(struct radeon_device *rdev,
		}
		return RADEON_PCIE_GEN1;
		}

		u16 r600_get_pcie_lane_support(struct radeon_device *rdev,
		u16 asic_lanes,
		u16 default_lanes)
		{
		switch (asic_lanes) {
		case 0:
		default:
		return default_lanes;
		case 1:
		return 1;
		case 2:
		return 2;
		case 4:
		return 4;
		case 8:
		return 8;
		case 12:
		return 12;
		case 16:
		return 16;
		}
		}

+4 −0

Original line number	Diff line number	Diff line
		@@ -224,4 +224,8 @@ enum radeon_pcie_gen r600_get_pcie_gen_support(struct radeon_device *rdev,
		enum radeon_pcie_gen asic_gen,
		enum radeon_pcie_gen default_gen);

		u16 r600_get_pcie_lane_support(struct radeon_device *rdev,
		u16 asic_lanes,
		u16 default_lanes);

		#endif