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authorDave Airlie <airlied@redhat.com>2022-02-14 10:31:51 +1000
committerDave Airlie <airlied@redhat.com>2022-02-14 10:31:51 +1000
commit123db17ddff007080d464e785689fb14f94cbc7a (patch)
tree11da22fd6a508e496be838e43e0b504266c4a4d3 /drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
parente7a09cea6483b44ea0c82f07145fcbd8a918bf96 (diff)
parent7f161df1a513e2961f4e3c96a8355c8ce93ad175 (diff)
downloadlinux-123db17ddff007080d464e785689fb14f94cbc7a.tar.bz2
Merge tag 'amd-drm-next-5.18-2022-02-11-1' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-5.18-2022-02-11-1: amdgpu: - Clean up of power management code - Enable freesync video mode by default - Clean up of RAS code - Improve VRAM access for debug using SDMA - Coding style cleanups - SR-IOV fixes - More display FP reorg - TLB flush fixes for Arcuturus, Vega20 - Misc display fixes - Rework special register access methods for SR-IOV - DP2 fixes - DP tunneling fixes - DSC fixes - More IP discovery cleanups - Misc RAS fixes - Enable both SMU i2c buses where applicable - s2idle improvements - DPCS header cleanup - Add new CAP firmware support for SR-IOV amdkfd: - Misc cleanups - SVM fixes - CRIU support - Clean up MQD manager UAPI: - Add interface to amdgpu CTX ioctl to request a stable power state for profiling https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/207 - Add amdkfd support for CRIU https://github.com/checkpoint-restore/criu/pull/1709 - Remove old unused amdkfd debugger interface Was only implemented for Kaveri and was only ever used by an old HSA tool that was never open sourced radeon: - Fix error handling in radeon_driver_open_kms - UVD suspend fix - Misc fixes From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220211220706.5803-1-alexander.deucher@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
index 27b19503773b..0eddca795e96 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
@@ -464,3 +464,41 @@ success:
adev->is_atom_fw = (adev->asic_type >= CHIP_VEGA10) ? true : false;
return true;
}
+
+/* helper function for soc15 and onwards to read bios from rom */
+bool amdgpu_soc15_read_bios_from_rom(struct amdgpu_device *adev,
+ u8 *bios, u32 length_bytes)
+{
+ u32 *dw_ptr;
+ u32 i, length_dw;
+ u32 rom_index_offset;
+ u32 rom_data_offset;
+
+ 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;
+ if (!adev->smuio.funcs ||
+ !adev->smuio.funcs->get_rom_index_offset ||
+ !adev->smuio.funcs->get_rom_data_offset)
+ return false;
+
+ dw_ptr = (u32 *)bios;
+ length_dw = ALIGN(length_bytes, 4) / 4;
+
+ rom_index_offset =
+ adev->smuio.funcs->get_rom_index_offset(adev);
+ rom_data_offset =
+ adev->smuio.funcs->get_rom_data_offset(adev);
+
+ /* set rom index to 0 */
+ WREG32(rom_index_offset, 0);
+ /* read out the rom data */
+ for (i = 0; i < length_dw; i++)
+ dw_ptr[i] = RREG32(rom_data_offset);
+
+ return true;
+}