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drm/amdgpu: switch to common helper to read bios from rom

Browse source 
create a common helper function for soc15 and onwards
to read bios image from rom

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang 2022-01-10 17:31:27 +08:00 committed by Alex Deucher
parent 381519dff8
commit 04022982fc
4 changed files with 43 additions and 69 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View file

@ -372,7 +372,8 @@ int amdgpu_device_ip_block_add(struct amdgpu_device *adev,
*/
bool amdgpu_get_bios(struct amdgpu_device *adev);
bool amdgpu_read_bios(struct amdgpu_device *adev);
bool amdgpu_soc15_read_bios_from_rom(struct amdgpu_device *adev,
u8 *bios, u32 length_bytes);
/*
* Clocks
*/

38
drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
View file

@ -464,3 +464,41 @@ bool amdgpu_get_bios(struct amdgpu_device *adev)
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;
}

34
drivers/gpu/drm/amd/amdgpu/nv.c
View file

@ -330,38 +330,6 @@ static bool nv_read_disabled_bios(struct amdgpu_device *adev)
return false;
}
static bool nv_read_bios_from_rom(struct amdgpu_device *adev,
u8 *bios, u32 length_bytes)
{
u32 *dw_ptr;
u32 i, length_dw;
u32 rom_index_offset, 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;
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;
}
static struct soc15_allowed_register_entry nv_allowed_read_registers[] = {
{ SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS)},
{ SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS2)},
@ -678,7 +646,7 @@ static int nv_update_umd_stable_pstate(struct amdgpu_device *adev,
static const struct amdgpu_asic_funcs nv_asic_funcs =
{
.read_disabled_bios = &nv_read_disabled_bios,
.read_bios_from_rom = &nv_read_bios_from_rom,
.read_bios_from_rom = &amdgpu_soc15_read_bios_from_rom,
.read_register = &nv_read_register,
.reset = &nv_asic_reset,
.reset_method = &nv_asic_reset_method,

37
drivers/gpu/drm/amd/amdgpu/soc15.c
View file

@ -375,39 +375,6 @@ static bool soc15_read_disabled_bios(struct amdgpu_device *adev)
return false;
}
static bool soc15_read_bios_from_rom(struct amdgpu_device *adev,
u8 *bios, u32 length_bytes)
{
u32 *dw_ptr;
u32 i, length_dw;
uint32_t rom_index_offset;
uint32_t 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;
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;
}
static struct soc15_allowed_register_entry soc15_allowed_read_registers[] = {
{ SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS)},
{ SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS2)},
@ -925,7 +892,7 @@ static void soc15_pre_asic_init(struct amdgpu_device *adev)
static const struct amdgpu_asic_funcs soc15_asic_funcs =
{
.read_disabled_bios = &soc15_read_disabled_bios,
.read_bios_from_rom = &soc15_read_bios_from_rom,
.read_bios_from_rom = &amdgpu_soc15_read_bios_from_rom,
.read_register = &soc15_read_register,
.reset = &soc15_asic_reset,
.reset_method = &soc15_asic_reset_method,
@ -947,7 +914,7 @@ static const struct amdgpu_asic_funcs soc15_asic_funcs =
static const struct amdgpu_asic_funcs vega20_asic_funcs =
{
.read_disabled_bios = &soc15_read_disabled_bios,
.read_bios_from_rom = &soc15_read_bios_from_rom,
.read_bios_from_rom = &amdgpu_soc15_read_bios_from_rom,
.read_register = &soc15_read_register,
.reset = &soc15_asic_reset,
.reset_method = &soc15_asic_reset_method,