diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 104 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 29 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/psp_v13_0.c | 44 |
4 files changed, 168 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c index a1450f13d963..8e626f50b362 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c @@ -2105,6 +2105,7 @@ int amdgpu_debugfs_init(struct amdgpu_device *adev) amdgpu_rap_debugfs_init(adev); amdgpu_securedisplay_debugfs_init(adev); amdgpu_fw_attestation_debugfs_init(adev); + amdgpu_psp_debugfs_init(adev); debugfs_create_file("amdgpu_evict_vram", 0400, root, adev, &amdgpu_evict_vram_fops); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index bb67d2bbd7f0..e6f0b035e20b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -4186,6 +4186,110 @@ const struct attribute_group amdgpu_flash_attr_group = { .is_visible = amdgpu_flash_attr_is_visible, }; +#if defined(CONFIG_DEBUG_FS) +static int psp_read_spirom_debugfs_open(struct inode *inode, struct file *filp) +{ + struct amdgpu_device *adev = filp->f_inode->i_private; + struct spirom_bo *bo_triplet; + int ret; + + /* serialize the open() file calling */ + if (!mutex_trylock(&adev->psp.mutex)) + return -EBUSY; + + /* + * make sure only one userpace process is alive for dumping so that + * only one memory buffer of AMD_VBIOS_FILE_MAX_SIZE * 2 is consumed. + * let's say the case where one process try opening the file while + * another one has proceeded to read or release. In this way, eliminate + * the use of mutex for read() or release() callback as well. + */ + if (adev->psp.spirom_dump_trip) { + mutex_unlock(&adev->psp.mutex); + return -EBUSY; + } + + bo_triplet = kzalloc(sizeof(struct spirom_bo), GFP_KERNEL); + if (!bo_triplet) { + mutex_unlock(&adev->psp.mutex); + return -ENOMEM; + } + + ret = amdgpu_bo_create_kernel(adev, AMD_VBIOS_FILE_MAX_SIZE_B * 2, + AMDGPU_GPU_PAGE_SIZE, + AMDGPU_GEM_DOMAIN_GTT, + &bo_triplet->bo, + &bo_triplet->mc_addr, + &bo_triplet->cpu_addr); + if (ret) + goto rel_trip; + + ret = psp_dump_spirom(&adev->psp, bo_triplet->mc_addr); + if (ret) + goto rel_bo; + + adev->psp.spirom_dump_trip = bo_triplet; + mutex_unlock(&adev->psp.mutex); + return 0; +rel_bo: + amdgpu_bo_free_kernel(&bo_triplet->bo, &bo_triplet->mc_addr, + &bo_triplet->cpu_addr); +rel_trip: + kfree(bo_triplet); + mutex_unlock(&adev->psp.mutex); + dev_err(adev->dev, "Trying IFWI dump fails, err = %d\n", ret); + return ret; +} + +static ssize_t psp_read_spirom_debugfs_read(struct file *filp, char __user *buf, size_t size, + loff_t *pos) +{ + struct amdgpu_device *adev = filp->f_inode->i_private; + struct spirom_bo *bo_triplet = adev->psp.spirom_dump_trip; + + if (!bo_triplet) + return -EINVAL; + + return simple_read_from_buffer(buf, + size, + pos, bo_triplet->cpu_addr, + AMD_VBIOS_FILE_MAX_SIZE_B * 2); +} + +static int psp_read_spirom_debugfs_release(struct inode *inode, struct file *filp) +{ + struct amdgpu_device *adev = filp->f_inode->i_private; + struct spirom_bo *bo_triplet = adev->psp.spirom_dump_trip; + + if (bo_triplet) { + amdgpu_bo_free_kernel(&bo_triplet->bo, &bo_triplet->mc_addr, + &bo_triplet->cpu_addr); + kfree(bo_triplet); + } + + adev->psp.spirom_dump_trip = NULL; + return 0; +} + +static const struct file_operations psp_dump_spirom_debugfs_ops = { + .owner = THIS_MODULE, + .open = psp_read_spirom_debugfs_open, + .read = psp_read_spirom_debugfs_read, + .release = psp_read_spirom_debugfs_release, + .llseek = default_llseek, +}; +#endif + +void amdgpu_psp_debugfs_init(struct amdgpu_device *adev) +{ +#if defined(CONFIG_DEBUG_FS) + struct drm_minor *minor = adev_to_drm(adev)->primary; + + debugfs_create_file_size("psp_spirom_dump", 0444, minor->debugfs_root, + adev, &psp_dump_spirom_debugfs_ops, AMD_VBIOS_FILE_MAX_SIZE_B * 2); +#endif +} + const struct amd_ip_funcs psp_ip_funcs = { .name = "psp", .early_init = psp_early_init, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h index dcf5e8e0b9e3..428adc7f741d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h @@ -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 diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c index f8af2cc63446..df612fd9cc50 100644 --- a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c +++ b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c @@ -71,15 +71,6 @@ MODULE_FIRMWARE("amdgpu/psp_14_0_4_ta.bin"); /* Retry times for vmbx ready wait */ #define PSP_VMBX_POLLING_LIMIT 3000 -/* 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 - /* memory training timeout define */ #define MEM_TRAIN_SEND_MSG_TIMEOUT_US 3000000 @@ -741,7 +732,8 @@ static int psp_v13_0_exec_spi_cmd(struct psp_context *psp, int cmd) /* Ring the doorbell */ WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_73, 1); - if (cmd == C2PMSG_CMD_SPI_UPDATE_FLASH_IMAGE) + if (cmd == C2PMSG_CMD_SPI_UPDATE_FLASH_IMAGE || + cmd == C2PMSG_CMD_SPI_GET_FLASH_IMAGE) ret = psp_wait_for_spirom_update(psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_115), MBOX_READY_FLAG, MBOX_READY_MASK, PSP_SPIROM_UPDATE_TIMEOUT); else @@ -797,6 +789,37 @@ static int psp_v13_0_update_spirom(struct psp_context *psp, return 0; } +static int psp_v13_0_dump_spirom(struct psp_context *psp, + uint64_t fw_pri_mc_addr) +{ + struct amdgpu_device *adev = psp->adev; + int ret; + + /* Confirm PSP is ready to start */ + ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_115), + MBOX_READY_FLAG, MBOX_READY_MASK, false); + if (ret) { + dev_err(adev->dev, "PSP Not ready to start processing, ret = %d", ret); + return ret; + } + + WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_116, lower_32_bits(fw_pri_mc_addr)); + + ret = psp_v13_0_exec_spi_cmd(psp, C2PMSG_CMD_SPI_GET_ROM_IMAGE_ADDR_LO); + if (ret) + return ret; + + WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_116, upper_32_bits(fw_pri_mc_addr)); + + ret = psp_v13_0_exec_spi_cmd(psp, C2PMSG_CMD_SPI_GET_ROM_IMAGE_ADDR_HI); + if (ret) + return ret; + + ret = psp_v13_0_exec_spi_cmd(psp, C2PMSG_CMD_SPI_GET_FLASH_IMAGE); + + return ret; +} + static int psp_v13_0_vbflash_status(struct psp_context *psp) { struct amdgpu_device *adev = psp->adev; @@ -929,6 +952,7 @@ static const struct psp_funcs psp_v13_0_funcs = { .load_usbc_pd_fw = psp_v13_0_load_usbc_pd_fw, .read_usbc_pd_fw = psp_v13_0_read_usbc_pd_fw, .update_spirom = psp_v13_0_update_spirom, + .dump_spirom = psp_v13_0_dump_spirom, .vbflash_stat = psp_v13_0_vbflash_status, .fatal_error_recovery_quirk = psp_v13_0_fatal_error_recovery_quirk, .get_ras_capability = psp_v13_0_get_ras_capability, |