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| author | Lijo Lazar <[email protected]> | 2025-06-02 07:25:14 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2025-06-24 14:04:19 +0000 |
| commit | 8345a71fc54b28e4d13a759c45ce2664d8540d28 (patch) | |
| tree | 90fad9173e8273b4fbf006953af3196f4f775dd2 /drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | |
| parent | drm/amdgpu: Convert init_mem_ranges into common helpers (diff) | |
| download | kernel-8345a71fc54b28e4d13a759c45ce2664d8540d28.tar.gz kernel-8345a71fc54b28e4d13a759c45ce2664d8540d28.zip | |
drm/amdgpu: Add more checks to PSP mailbox
Instead of checking the response flag, use status mask also to check
against any unexpected failures like a device drop. Also, log error if
waiting on a psp response fails/times out.
Signed-off-by: Lijo Lazar <[email protected]>
Reviewed-by: Hawking Zhang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h index dbc8e1950e4e..4bc0ec49d2e9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h @@ -51,6 +51,17 @@ #define C2PMSG_CMD_SPI_GET_ROM_IMAGE_ADDR_HI 0x10 #define C2PMSG_CMD_SPI_GET_FLASH_IMAGE 0x11 +/* Command register bit 31 set to indicate readiness */ +#define MBOX_TOS_READY_FLAG (GFX_FLAG_RESPONSE) +#define MBOX_TOS_READY_MASK (GFX_CMD_RESPONSE_MASK | GFX_CMD_STATUS_MASK) + +/* Values to check for a successful GFX_CMD response wait. Check against + * both status bits and response state - helps to detect a command failure + * or other unexpected cases like a device drop reading all 0xFFs + */ +#define MBOX_TOS_RESP_FLAG (GFX_FLAG_RESPONSE) +#define MBOX_TOS_RESP_MASK (GFX_CMD_RESPONSE_MASK | GFX_CMD_STATUS_MASK) + extern const struct attribute_group amdgpu_flash_attr_group; enum psp_shared_mem_size { |