git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-23 05:56:14 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: add debugfs for spirom IFWI dump

Browse Source 
Expose the debugfs file node for user space to dump the IFWI image
on spirom.

For one transaction between PSP and host, it will read out the
images on both active and inactive partitions so a buffer with two
times the size of maximum IFWI image (currently 16MByte) is needed.

v2: move the vbios gfl macros to the common header and rename the
    bo triplet struct to spirom_bo for this specific usage (Hawking)

v3: return directly the result of last command execution (Lijo)

Signed-off-by: Shiwu Zhang <shiwu.zhang@amd.com>
Reviewed-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:
Shiwu Zhang
2025-03-21 21:48:16 +08:00
committed by Alex Deucher
parent 64db767013
commit 72ea78335e
4 changed files with 168 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
View File

@@ -39,6 +39,18 @@
#define PSP_TMR_ALIGNMENT 0x100000
#define PSP_FW_NAME_LEN 0x24
/* VBIOS gfl defines */
#define MBOX_READY_MASK 0x80000000
#define MBOX_STATUS_MASK 0x0000FFFF
#define MBOX_COMMAND_MASK 0x00FF0000
#define MBOX_READY_FLAG 0x80000000
#define C2PMSG_CMD_SPI_UPDATE_ROM_IMAGE_ADDR_LO 0x2
#define C2PMSG_CMD_SPI_UPDATE_ROM_IMAGE_ADDR_HI 0x3
#define C2PMSG_CMD_SPI_UPDATE_FLASH_IMAGE 0x4
#define C2PMSG_CMD_SPI_GET_ROM_IMAGE_ADDR_LO 0xf
#define C2PMSG_CMD_SPI_GET_ROM_IMAGE_ADDR_HI 0x10
#define C2PMSG_CMD_SPI_GET_FLASH_IMAGE 0x11
extern const struct attribute_group amdgpu_flash_attr_group;
enum psp_shared_mem_size {
@@ -138,6 +150,7 @@ struct psp_funcs {
int (*load_usbc_pd_fw)(struct psp_context *psp, uint64_t fw_pri_mc_addr);
int (*read_usbc_pd_fw)(struct psp_context *psp, uint32_t *fw_ver);
int (*update_spirom)(struct psp_context *psp, uint64_t fw_pri_mc_addr);
int (*dump_spirom)(struct psp_context *psp, uint64_t fw_pri_mc_addr);
int (*vbflash_stat)(struct psp_context *psp);
int (*fatal_error_recovery_quirk)(struct psp_context *psp);
bool (*get_ras_capability)(struct psp_context *psp);
@@ -322,6 +335,14 @@ struct psp_runtime_scpm_entry {
enum psp_runtime_scpm_authentication scpm_status;
};
#if defined(CONFIG_DEBUG_FS)
struct spirom_bo {
struct amdgpu_bo *bo;
uint64_t mc_addr;
void *cpu_addr;
};
#endif
struct psp_context {
struct amdgpu_device *adev;
struct psp_ring km_ring;
@@ -409,6 +430,9 @@ struct psp_context {
char *vbflash_tmp_buf;
size_t vbflash_image_size;
bool vbflash_done;
#if defined(CONFIG_DEBUG_FS)
struct spirom_bo *spirom_dump_trip;
#endif
};
struct amdgpu_psp_funcs {
@@ -467,6 +491,10 @@ struct amdgpu_psp_funcs {
((psp)->funcs->update_spirom ? \
(psp)->funcs->update_spirom((psp), fw_pri_mc_addr) : -EINVAL)
#define psp_dump_spirom(psp, fw_pri_mc_addr) \
((psp)->funcs->dump_spirom ? \
(psp)->funcs->dump_spirom((psp), fw_pri_mc_addr) : -EINVAL)
#define psp_vbflash_status(psp) \
((psp)->funcs->vbflash_stat ? \
(psp)->funcs->vbflash_stat((psp)) : -EINVAL)
@@ -578,6 +606,7 @@ int psp_config_sq_perfmon(struct psp_context *psp, uint32_t xcp_id,
bool amdgpu_psp_tos_reload_needed(struct amdgpu_device *adev);
int amdgpu_psp_reg_program_no_ring(struct psp_context *psp, uint32_t val,
enum psp_reg_prog_id id);
void amdgpu_psp_debugfs_init(struct amdgpu_device *adev);
#endif