diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 38 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c | 217 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.h | 5 |
4 files changed, 168 insertions, 104 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index b8d07e863ed8..2fcb5bfbef89 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -1071,42 +1071,6 @@ int psp_ta_init_shared_buf(struct psp_context *psp, &mem_ctx->shared_buf); } -static void psp_prep_ta_invoke_indirect_cmd_buf(struct psp_gfx_cmd_resp *cmd, - uint32_t ta_cmd_id, - struct ta_context *context) -{ - cmd->cmd_id = GFX_CMD_ID_INVOKE_CMD; - cmd->cmd.cmd_invoke_cmd.session_id = context->session_id; - cmd->cmd.cmd_invoke_cmd.ta_cmd_id = ta_cmd_id; - - cmd->cmd.cmd_invoke_cmd.buf.num_desc = 1; - cmd->cmd.cmd_invoke_cmd.buf.total_size = context->mem_context.shared_mem_size; - cmd->cmd.cmd_invoke_cmd.buf.buf_desc[0].buf_size = context->mem_context.shared_mem_size; - cmd->cmd.cmd_invoke_cmd.buf.buf_desc[0].buf_phy_addr_lo = - lower_32_bits(context->mem_context.shared_mc_addr); - cmd->cmd.cmd_invoke_cmd.buf.buf_desc[0].buf_phy_addr_hi = - upper_32_bits(context->mem_context.shared_mc_addr); -} - -int psp_ta_invoke_indirect(struct psp_context *psp, - uint32_t ta_cmd_id, - struct ta_context *context) -{ - int ret; - struct psp_gfx_cmd_resp *cmd = acquire_psp_cmd_buf(psp); - - psp_prep_ta_invoke_indirect_cmd_buf(cmd, ta_cmd_id, context); - - ret = psp_cmd_submit_buf(psp, NULL, cmd, - psp->fence_buf_mc_addr); - - context->resp_status = cmd->resp.status; - - release_psp_cmd_buf(psp); - - return ret; -} - static void psp_prep_ta_invoke_cmd_buf(struct psp_gfx_cmd_resp *cmd, uint32_t ta_cmd_id, uint32_t session_id) @@ -1549,7 +1513,7 @@ int psp_ras_terminate(struct psp_context *psp) return ret; } -static int psp_ras_initialize(struct psp_context *psp) +int psp_ras_initialize(struct psp_context *psp) { int ret; uint32_t boot_cfg = 0xFF; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h index 58ce3ebb446c..cbd4194a2883 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h @@ -136,6 +136,12 @@ struct psp_funcs int (*vbflash_stat)(struct psp_context *psp); }; +struct ta_funcs { + int (*fn_ta_initialize)(struct psp_context *psp); + int (*fn_ta_invoke)(struct psp_context *psp, uint32_t ta_cmd_id); + int (*fn_ta_terminate)(struct psp_context *psp); +}; + #define AMDGPU_XGMI_MAX_CONNECTED_NODES 64 struct psp_xgmi_node_info { uint64_t node_id; @@ -309,6 +315,7 @@ struct psp_context struct psp_gfx_cmd_resp *cmd; const struct psp_funcs *funcs; + const struct ta_funcs *ta_funcs; /* firmware buffer */ struct amdgpu_bo *fw_pri_bo; @@ -463,9 +470,6 @@ int psp_ta_load(struct psp_context *psp, struct ta_context *context); int psp_ta_invoke(struct psp_context *psp, uint32_t ta_cmd_id, struct ta_context *context); -int psp_ta_invoke_indirect(struct psp_context *psp, - uint32_t ta_cmd_id, - struct ta_context *context); int psp_xgmi_initialize(struct psp_context *psp, bool set_extended_data, bool load_ta); int psp_xgmi_terminate(struct psp_context *psp); @@ -479,7 +483,7 @@ int psp_xgmi_get_topology_info(struct psp_context *psp, int psp_xgmi_set_topology_info(struct psp_context *psp, int number_devices, struct psp_xgmi_topology_info *topology); - +int psp_ras_initialize(struct psp_context *psp); int psp_ras_invoke(struct psp_context *psp, uint32_t ta_cmd_id); int psp_ras_enable_features(struct psp_context *psp, union ta_ras_cmd_input *info, bool enable); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c index 0988e00612e5..468a67b302d4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c @@ -41,30 +41,46 @@ static uint32_t get_bin_version(const uint8_t *bin) return hdr->ucode_version; } -static void prep_ta_mem_context(struct psp_context *psp, - struct ta_context *context, +static int prep_ta_mem_context(struct ta_mem_context *mem_context, uint8_t *shared_buf, uint32_t shared_buf_len) { - context->mem_context.shared_mem_size = PAGE_ALIGN(shared_buf_len); - psp_ta_init_shared_buf(psp, &context->mem_context); + if (mem_context->shared_mem_size < shared_buf_len) + return -EINVAL; + memset(mem_context->shared_buf, 0, mem_context->shared_mem_size); + memcpy((void *)mem_context->shared_buf, shared_buf, shared_buf_len); - memcpy((void *)context->mem_context.shared_buf, shared_buf, shared_buf_len); + return 0; } static bool is_ta_type_valid(enum ta_type_id ta_type) { - bool ret = false; + switch (ta_type) { + case TA_TYPE_RAS: + return true; + default: + return false; + } +} + +static const struct ta_funcs ras_ta_funcs = { + .fn_ta_initialize = psp_ras_initialize, + .fn_ta_invoke = psp_ras_invoke, + .fn_ta_terminate = psp_ras_terminate +}; +static void set_ta_context_funcs(struct psp_context *psp, + enum ta_type_id ta_type, + struct ta_context **pcontext) +{ switch (ta_type) { case TA_TYPE_RAS: - ret = true; + *pcontext = &psp->ras_context.context; + psp->ta_funcs = &ras_ta_funcs; break; default: break; } - - return ret; } static const struct file_operations ta_load_debugfs_fops = { @@ -85,8 +101,7 @@ static const struct file_operations ta_invoke_debugfs_fops = { .owner = THIS_MODULE }; - -/** +/* * DOC: AMDGPU TA debugfs interfaces * * Three debugfs interfaces can be opened by a program to @@ -111,15 +126,18 @@ static const struct file_operations ta_invoke_debugfs_fops = { * * - For TA invoke debugfs interface: * Transmit buffer: + * - TA type (4bytes) * - TA ID (4bytes) * - TA CMD ID (4bytes) - * - TA shard buf length (4bytes) + * - TA shard buf length + * (4bytes, value not beyond TA shared memory size) * - TA shared buf * Receive buffer: * - TA shared buf * * - For TA unload debugfs interface: * Transmit buffer: + * - TA type (4bytes) * - TA ID (4bytes) */ @@ -131,59 +149,92 @@ static ssize_t ta_if_load_debugfs_write(struct file *fp, const char *buf, size_t uint32_t copy_pos = 0; int ret = 0; - struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(fp)->i_private; - struct psp_context *psp = &adev->psp; - struct ta_context context = {0}; + struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(fp)->i_private; + struct psp_context *psp = &adev->psp; + struct ta_context *context = NULL; if (!buf) return -EINVAL; ret = copy_from_user((void *)&ta_type, &buf[copy_pos], sizeof(uint32_t)); if (ret || (!is_ta_type_valid(ta_type))) - return -EINVAL; + return -EFAULT; copy_pos += sizeof(uint32_t); ret = copy_from_user((void *)&ta_bin_len, &buf[copy_pos], sizeof(uint32_t)); if (ret) - return -EINVAL; + return -EFAULT; copy_pos += sizeof(uint32_t); ta_bin = kzalloc(ta_bin_len, GFP_KERNEL); if (!ta_bin) - ret = -ENOMEM; + return -ENOMEM; if (copy_from_user((void *)ta_bin, &buf[copy_pos], ta_bin_len)) { ret = -EFAULT; goto err_free_bin; } - ret = psp_ras_terminate(psp); - if (ret) { - dev_err(adev->dev, "Failed to unload embedded RAS TA\n"); + /* Set TA context and functions */ + set_ta_context_funcs(psp, ta_type, &context); + + if (!psp->ta_funcs || !psp->ta_funcs->fn_ta_terminate) { + dev_err(adev->dev, "Unsupported function to terminate TA\n"); + ret = -EOPNOTSUPP; goto err_free_bin; } - context.ta_type = ta_type; - context.ta_load_type = GFX_CMD_ID_LOAD_TA; - context.bin_desc.fw_version = get_bin_version(ta_bin); - context.bin_desc.size_bytes = ta_bin_len; - context.bin_desc.start_addr = ta_bin; + /* + * Allocate TA shared buf in case shared buf was freed + * due to loading TA failed before. + */ + if (!context->mem_context.shared_buf) { + ret = psp_ta_init_shared_buf(psp, &context->mem_context); + if (ret) { + ret = -ENOMEM; + goto err_free_bin; + } + } + + ret = psp_fn_ta_terminate(psp); + if (ret || context->resp_status) { + dev_err(adev->dev, + "Failed to unload embedded TA (%d) and status (0x%X)\n", + ret, context->resp_status); + if (!ret) + ret = -EINVAL; + goto err_free_ta_shared_buf; + } + + /* Prepare TA context for TA initialization */ + context->ta_type = ta_type; + context->bin_desc.fw_version = get_bin_version(ta_bin); + context->bin_desc.size_bytes = ta_bin_len; + context->bin_desc.start_addr = ta_bin; - ret = psp_ta_load(psp, &context); + if (!psp->ta_funcs->fn_ta_initialize) { + dev_err(adev->dev, "Unsupported function to initialize TA\n"); + ret = -EOPNOTSUPP; + goto err_free_ta_shared_buf; + } - if (ret || context.resp_status) { - dev_err(adev->dev, "TA load via debugfs failed (%d) status %d\n", - ret, context.resp_status); + ret = psp_fn_ta_initialize(psp); + if (ret || context->resp_status) { + dev_err(adev->dev, "Failed to load TA via debugfs (%d) and status (0x%X)\n", + ret, context->resp_status); if (!ret) ret = -EINVAL; - goto err_free_bin; + goto err_free_ta_shared_buf; } - context.initialized = true; - if (copy_to_user((char *)buf, (void *)&context.session_id, sizeof(uint32_t))) + if (copy_to_user((char *)buf, (void *)&context->session_id, sizeof(uint32_t))) ret = -EFAULT; +err_free_ta_shared_buf: + /* Only free TA shared buf when returns error code */ + if (ret && context->mem_context.shared_buf) + psp_ta_free_shared_buf(&context->mem_context); err_free_bin: kfree(ta_bin); @@ -192,58 +243,85 @@ err_free_bin: static ssize_t ta_if_unload_debugfs_write(struct file *fp, const char *buf, size_t len, loff_t *off) { - uint32_t ta_id = 0; - int ret = 0; + uint32_t ta_type = 0; + uint32_t ta_id = 0; + uint32_t copy_pos = 0; + int ret = 0; - struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(fp)->i_private; - struct psp_context *psp = &adev->psp; - struct ta_context context = {0}; + struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(fp)->i_private; + struct psp_context *psp = &adev->psp; + struct ta_context *context = NULL; if (!buf) return -EINVAL; - ret = copy_from_user((void *)&ta_id, buf, sizeof(uint32_t)); + ret = copy_from_user((void *)&ta_type, &buf[copy_pos], sizeof(uint32_t)); + if (ret || (!is_ta_type_valid(ta_type))) + return -EFAULT; + + copy_pos += sizeof(uint32_t); + + ret = copy_from_user((void *)&ta_id, &buf[copy_pos], sizeof(uint32_t)); if (ret) - return -EINVAL; + return -EFAULT; - context.session_id = ta_id; + set_ta_context_funcs(psp, ta_type, &context); + context->session_id = ta_id; - ret = psp_ta_unload(psp, &context); - if (!ret) - context.initialized = false; + if (!psp->ta_funcs || !psp->ta_funcs->fn_ta_terminate) { + dev_err(adev->dev, "Unsupported function to terminate TA\n"); + return -EOPNOTSUPP; + } + + ret = psp_fn_ta_terminate(psp); + if (ret || context->resp_status) { + dev_err(adev->dev, "Failed to unload TA via debugfs (%d) and status (0x%X)\n", + ret, context->resp_status); + if (!ret) + ret = -EINVAL; + } + + if (context->mem_context.shared_buf) + psp_ta_free_shared_buf(&context->mem_context); return ret; } static ssize_t ta_if_invoke_debugfs_write(struct file *fp, const char *buf, size_t len, loff_t *off) { + uint32_t ta_type = 0; uint32_t ta_id = 0; uint32_t cmd_id = 0; uint32_t shared_buf_len = 0; - uint8_t *shared_buf = NULL; + uint8_t *shared_buf = NULL; uint32_t copy_pos = 0; int ret = 0; - struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(fp)->i_private; - struct psp_context *psp = &adev->psp; - struct ta_context context = {0}; + struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(fp)->i_private; + struct psp_context *psp = &adev->psp; + struct ta_context *context = NULL; if (!buf) return -EINVAL; + ret = copy_from_user((void *)&ta_type, &buf[copy_pos], sizeof(uint32_t)); + if (ret) + return -EFAULT; + copy_pos += sizeof(uint32_t); + ret = copy_from_user((void *)&ta_id, &buf[copy_pos], sizeof(uint32_t)); if (ret) - return -EINVAL; + return -EFAULT; copy_pos += sizeof(uint32_t); ret = copy_from_user((void *)&cmd_id, &buf[copy_pos], sizeof(uint32_t)); if (ret) - return -EINVAL; + return -EFAULT; copy_pos += sizeof(uint32_t); ret = copy_from_user((void *)&shared_buf_len, &buf[copy_pos], sizeof(uint32_t)); if (ret) - return -EINVAL; + return -EFAULT; copy_pos += sizeof(uint32_t); shared_buf = kzalloc(shared_buf_len, GFP_KERNEL); @@ -254,26 +332,39 @@ static ssize_t ta_if_invoke_debugfs_write(struct file *fp, const char *buf, size goto err_free_shared_buf; } - context.session_id = ta_id; + set_ta_context_funcs(psp, ta_type, &context); + + if (!context->initialized) { + dev_err(adev->dev, "TA is not initialized\n"); + ret = -EINVAL; + goto err_free_shared_buf; + } + + if (!psp->ta_funcs || !psp->ta_funcs->fn_ta_invoke) { + dev_err(adev->dev, "Unsupported function to invoke TA\n"); + ret = -EOPNOTSUPP; + goto err_free_shared_buf; + } - prep_ta_mem_context(psp, &context, shared_buf, shared_buf_len); + context->session_id = ta_id; - ret = psp_ta_invoke_indirect(psp, cmd_id, &context); + ret = prep_ta_mem_context(&context->mem_context, shared_buf, shared_buf_len); + if (ret) + goto err_free_shared_buf; - if (ret || context.resp_status) { - dev_err(adev->dev, "TA invoke via debugfs failed (%d) status %d\n", - ret, context.resp_status); - if (!ret) + ret = psp_fn_ta_invoke(psp, cmd_id); + if (ret || context->resp_status) { + dev_err(adev->dev, "Failed to invoke TA via debugfs (%d) and status (0x%X)\n", + ret, context->resp_status); + if (!ret) { ret = -EINVAL; - goto err_free_ta_shared_buf; + goto err_free_shared_buf; + } } - if (copy_to_user((char *)buf, context.mem_context.shared_buf, shared_buf_len)) + if (copy_to_user((char *)buf, context->mem_context.shared_buf, shared_buf_len)) ret = -EFAULT; -err_free_ta_shared_buf: - psp_ta_free_shared_buf(&context.mem_context); - err_free_shared_buf: kfree(shared_buf); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.h index cfc1542f63ef..14cd1c81c3e6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.h @@ -24,6 +24,11 @@ #ifndef __AMDGPU_PSP_TA_H__ #define __AMDGPU_PSP_TA_H__ +/* Calling set_ta_context_funcs is required before using the following macros */ +#define psp_fn_ta_initialize(psp) ((psp)->ta_funcs->fn_ta_initialize((psp))) +#define psp_fn_ta_invoke(psp, ta_cmd_id) ((psp)->ta_funcs->fn_ta_invoke((psp), (ta_cmd_id))) +#define psp_fn_ta_terminate(psp) ((psp)->ta_funcs->fn_ta_terminate((psp))) + void amdgpu_ta_if_debugfs_init(struct amdgpu_device *adev); #endif |