Commit c3cdc3be authored by Lijo Lazar's avatar Lijo Lazar Committed by Alex Deucher
Browse files

drm/amdgpu: Read memory vendor information 



Read VRAM vendor information from scratch register for GC v9.4.3 and
GC v9.5.0 SOCs.

Signed-off-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent e09b081d

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

+8 −0
Original line number Diff line number Diff line
@@ -1834,11 +1834,19 @@ static void gmc_v9_0_save_registers(struct amdgpu_device *adev) 


static void gmc_v9_4_3_init_vram_info(struct amdgpu_device *adev)

{

	static const u32 regBIF_BIOS_SCRATCH_4 = 0x50;

	u32 vram_info;



	adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM;

	adev->gmc.vram_width = 128 * 64;



	if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 5, 0))

		adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM3E;



	if (!(adev->flags & AMD_IS_APU) && !amdgpu_sriov_vf(adev)) {

		vram_info = RREG32(regBIF_BIOS_SCRATCH_4);

		adev->gmc.vram_vendor = vram_info & 0xF;

	}

}



static int gmc_v9_0_sw_init(struct amdgpu_ip_block *ip_block)