diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4518-drm-amdgpu-nv-add-asic-func-for-fetching-vbios-from-.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4518-drm-amdgpu-nv-add-asic-func-for-fetching-vbios-from-.patch | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4518-drm-amdgpu-nv-add-asic-func-for-fetching-vbios-from-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4518-drm-amdgpu-nv-add-asic-func-for-fetching-vbios-from-.patch new file mode 100644 index 00000000..aaa0508d --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4518-drm-amdgpu-nv-add-asic-func-for-fetching-vbios-from-.patch @@ -0,0 +1,59 @@ +From 4baaff63c41abaecb938ac4c3b72ce6e6ce41bd9 Mon Sep 17 00:00:00 2001 +From: Alex Deucher <alexander.deucher@amd.com> +Date: Wed, 13 Nov 2019 14:27:54 -0500 +Subject: [PATCH 4518/4736] drm/amdgpu/nv: add asic func for fetching vbios + from rom directly + +Needed as a fallback if the vbios can't be fetched by other means. + +Reviewed-by: Xiaojie Yuan <xiaojie.yuan@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/nv.c | 24 ++++++++++++++++++++++-- + 1 file changed, 22 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c +index 9163f3507a84..91b0482278c2 100644 +--- a/drivers/gpu/drm/amd/amdgpu/nv.c ++++ b/drivers/gpu/drm/amd/amdgpu/nv.c +@@ -39,6 +39,7 @@ + #include "gc/gc_10_1_0_sh_mask.h" + #include "hdp/hdp_5_0_0_offset.h" + #include "hdp/hdp_5_0_0_sh_mask.h" ++#include "smuio/smuio_11_0_0_offset.h" + + #include "soc15.h" + #include "soc15_common.h" +@@ -156,8 +157,27 @@ static bool nv_read_disabled_bios(struct amdgpu_device *adev) + static bool nv_read_bios_from_rom(struct amdgpu_device *adev, + u8 *bios, u32 length_bytes) + { +- /* TODO: will implement it when SMU header is available */ +- return false; ++ u32 *dw_ptr; ++ u32 i, length_dw; ++ ++ if (bios == NULL) ++ return false; ++ if (length_bytes == 0) ++ return false; ++ /* APU vbios image is part of sbios image */ ++ if (adev->flags & AMD_IS_APU) ++ return false; ++ ++ dw_ptr = (u32 *)bios; ++ length_dw = ALIGN(length_bytes, 4) / 4; ++ ++ /* set rom index to 0 */ ++ WREG32(SOC15_REG_OFFSET(SMUIO, 0, mmROM_INDEX), 0); ++ /* read out the rom data */ ++ for (i = 0; i < length_dw; i++) ++ dw_ptr[i] = RREG32(SOC15_REG_OFFSET(SMUIO, 0, mmROM_DATA)); ++ ++ return true; + } + + static struct soc15_allowed_register_entry nv_allowed_read_registers[] = { +-- +2.17.1 + |