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Commit 4426826c authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu/atombios: add function for whether we need asic_init 



Check the atom scratch registers to see if asic_init is complete
or not.

Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d05da0e2

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

+10 −0
Original line number Diff line number Diff line
@@ -1756,6 +1756,16 @@ void amdgpu_atombios_scratch_regs_engine_hung(struct amdgpu_device *adev, 
	WREG32(adev->bios_scratch_reg_offset + 3, tmp);

}



bool amdgpu_atombios_scratch_need_asic_init(struct amdgpu_device *adev)

{

	u32 tmp = RREG32(adev->bios_scratch_reg_offset + 7);



	if (tmp & ATOM_S7_ASIC_INIT_COMPLETE_MASK)

		return false;

	else

		return true;

}



/* Atom needs data in little endian format

 * so swap as appropriate when copying data to

 * or from atom. Note that atom operates on

drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h

+1 −0
Original line number Diff line number Diff line
@@ -200,6 +200,7 @@ void amdgpu_atombios_scratch_regs_save(struct amdgpu_device *adev); 
void amdgpu_atombios_scratch_regs_restore(struct amdgpu_device *adev);

void amdgpu_atombios_scratch_regs_engine_hung(struct amdgpu_device *adev,

					      bool hung);

bool amdgpu_atombios_scratch_need_asic_init(struct amdgpu_device *adev);



void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le);

int amdgpu_atombios_get_max_vddc(struct amdgpu_device *adev, u8 voltage_type,