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drm/amdgpu: Add vbios info ioctl interface

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Add AMDGPU_INFO_VBIOS_INFO subquery id for detailed vbios info.

Provides a way for the user application to get the VBIOS
information without having to parse the binary.
It is useful for the user to be able to display in a simple way the VBIOS
version in their system if they happen to encounter an issue.

V2:
Use numeric serial.
Parse and expose vbios version string.

V3:
Remove redundant data in drm_amdgpu_info_vbios struct.

V4:
64 bit alignment in drm_amdgpu_info_vbios.

v5: squash together all the reverts, etc. (Alex)

Signed-off-by: Jiawei Gu <Jiawei.Gu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jiawei Gu
2021-04-14 16:44:36 +08:00
committed by Alex Deucher
parent 915821a744
commit 29b4c589b4
5 changed files with 219 additions and 6 deletions
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10
drivers/gpu/drm/amd/amdgpu/atom.h
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@@ -112,6 +112,10 @@ struct drm_device;
#define ATOM_IO_SYSIO 2
#define ATOM_IO_IIO 0x80
#define STRLEN_NORMAL 32
#define STRLEN_LONG 64
#define STRLEN_VERYLONG 254
struct card_info {
struct drm_device *dev;
void (* reg_write)(struct card_info *, uint32_t, uint32_t); /* filled by driver */
@@ -140,6 +144,12 @@ struct atom_context {
uint32_t *scratch;
int scratch_size_bytes;
char vbios_version[20];
uint8_t name[STRLEN_LONG];
uint8_t vbios_pn[STRLEN_LONG];
uint32_t version;
uint8_t vbios_ver_str[STRLEN_NORMAL];
uint8_t date[STRLEN_NORMAL];
};
extern int amdgpu_atom_debug;