/* * Copyright 2015 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * */ #include #include #include #include #include #include #include #include "amdgpu.h" #include "cgs_linux.h" #include "atom.h" #include "amdgpu_ucode.h" struct amdgpu_cgs_device { struct cgs_device base; struct amdgpu_device *adev; }; #define CGS_FUNC_ADEV \ struct amdgpu_device *adev = \ ((struct amdgpu_cgs_device *)cgs_device)->adev static int amdgpu_cgs_gpu_mem_info(void *cgs_device, enum cgs_gpu_mem_type type, uint64_t *mc_start, uint64_t *mc_size, uint64_t *mem_size) { CGS_FUNC_ADEV; switch(type) { case CGS_GPU_MEM_TYPE__VISIBLE_CONTIG_FB: case CGS_GPU_MEM_TYPE__VISIBLE_FB: *mc_start = 0; *mc_size = adev->mc.visible_vram_size; *mem_size = adev->mc.visible_vram_size - adev->vram_pin_size; break; case CGS_GPU_MEM_TYPE__INVISIBLE_CONTIG_FB: case CGS_GPU_MEM_TYPE__INVISIBLE_FB: *mc_start = adev->mc.visible_vram_size; *mc_size = adev->mc.real_vram_size - adev->mc.visible_vram_size; *mem_size = *mc_size; break; case CGS_GPU_MEM_TYPE__GART_CACHEABLE: case CGS_GPU_MEM_TYPE__GART_WRITECOMBINE: *mc_start = adev->mc.gtt_start; *mc_size = adev->mc.gtt_size; *mem_size = adev->mc.gtt_size - adev->gart_pin_size; break; default: return -EINVAL; } return 0; } static int amdgpu_cgs_gmap_kmem(void *cgs_device, void *kmem, uint64_t size, uint64_t min_offset, uint64_t max_offset, cgs_handle_t *kmem_handle, uint64_t *mcaddr) { CGS_FUNC_ADEV; int ret; struct amdgpu_bo *bo; struct page *kmem_page = vmalloc_to_page(kmem); int npages = ALIGN(size, PAGE_SIZE) >> PAGE_SHIFT; struct sg_table *sg = drm_prime_pages_to_sg(&kmem_page, npages); ret = amdgpu_bo_create(adev, size, PAGE_SIZE, false, AMDGPU_GEM_DOMAIN_GTT, 0, sg, NULL, &bo); if (ret) return ret; ret = amdgpu_bo_reserve(bo, false); if (unlikely(ret != 0)) return ret; /* pin buffer into GTT */ ret = amdgpu_bo_pin_restricted(bo, AMDGPU_GEM_DOMAIN_GTT, min_offset, max_offset, mcaddr); amdgpu_bo_unreserve(bo); *kmem_handle = (cgs_handle_t)bo; return ret; } static int amdgpu_cgs_gunmap_kmem(void *cgs_device, cgs_handle_t kmem_handle) { struct amdgpu_bo *obj = (struct amdgpu_bo *)kmem_handle; if (obj) { int r = amdgpu_bo_reserve(obj, false); if (likely(r == 0)) { amdgpu_bo_unpin(obj); amdgpu_bo_unreserve(obj); } amdgpu_bo_unref(&obj); } return 0; } static int amdgpu_cgs_alloc_gpu_mem(void *cgs_device, enum cgs_gpu_mem_type type, uint64_t size, uint64_t align, uint64_t min_offset, uint64_t max_offset, cgs_handle_t *handle) { CGS_FUNC_ADEV; uint16_t flags = 0; int ret = 0; uint32_t domain = 0; struct amdgpu_bo *obj; struct ttm_placement placement; struct ttm_place place; if (min_offset > max_offset) { BUG_ON(1); return -EINVAL; } /* fail if the alignment is not a power of 2 */ if (((align != 1) && (align & (align - 1))) || size == 0 || align == 0) return -EINVAL; switch(type) { case CGS_GPU_MEM_TYPE__VISIBLE_CONTIG_FB: case CGS_GPU_MEM_TYPE__VISIBLE_FB: flags = AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED; domain = AMDGPU_GEM_DOMAIN_VRAM; if (max_offset > adev->mc.real_vram_size) return -EINVAL; place.fpfn = min_offset >> PAGE_SHIFT; place.lpfn = max_offset >> PAGE_SHIFT; place.flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM; break; case CGS_GPU_MEM_TYPE__INVISIBLE_CONTIG_FB: case CGS_GPU_MEM_TYPE__INVISIBLE_FB: flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS; domain = AMDGPU_GEM_DOMAIN_VRAM; if (adev->mc.visible_vram_size < adev->mc.real_vram_size) { place.fpfn = max(min_offset, adev->mc.visible_vram_size) >> PAGE_SHIFT; place.lpfn = min(max_offset, adev->mc.real_vram_size) >> PAGE_SHIFT; place.flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM; } break; case CGS_GPU_MEM_TYPE__GART_CACHEABLE: domain = AMDGPU_GEM_DOMAIN_GTT; place.fpfn = min_offset >> PAGE_SHIFT; place.lpfn = max_offset >> PAGE_SHIFT; place.flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_TT; break; case CGS_GPU_MEM_TYPE__GART_WRITECOMBINE: flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC; domain = AMDGPU_GEM_DOMAIN_GTT; place.fpfn = min_offset >> PAGE_SHIFT; place.lpfn = max_offset >> PAGE_SHIFT; place.flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_TT | TTM_PL_FLAG_UNCACHED; break; default: return -EINVAL; } *handle = 0; placement.placement = &place; placement.num_placement = 1; placement.busy_placement = &place; placement.num_busy_placement = 1; ret = amdgpu_bo_create_restricted(adev, size, PAGE_SIZE, true, domain, flags, NULL, &placement, NULL, &obj); if (ret) { DRM_ERROR("(%d) bo create failed\n", ret); return ret; } *handle = (cgs_handle_t)obj; return ret; } static int amdgpu_cgs_free_gpu_mem(void *cgs_device, cgs_handle_t handle) { struct amdgpu_bo *obj = (struct amdgpu_bo *)handle; if (obj) { int r = amdgpu_bo_reserve(obj, false); if (likely(r == 0)) { amdgpu_bo_kunmap(obj); amdgpu_bo_unpin(obj); amdgpu_bo_unreserve(obj); } amdgpu_bo_unref(&obj); } return 0; } static int amdgpu_cgs_gmap_gpu_mem(void *cgs_device, cgs_handle_t handle, uint64_t *mcaddr) { int r; u64 min_offset, max_offset; struct amdgpu_bo *obj = (struct amdgpu_bo *)handle; WARN_ON_ONCE(obj->placement.num_placement > 1); min_offset = obj->placements[0].fpfn << PAGE_SHIFT; max_offset = obj->placements[0].lpfn << PAGE_SHIFT; r = amdgpu_bo_reserve(obj, false); if (unlikely(r != 0)) return r; r = amdgpu_bo_pin_restricted(obj, AMDGPU_GEM_DOMAIN_GTT, min_offset, max_offset, mcaddr); amdgpu_bo_unreserve(obj); return r; } static int amdgpu_cgs_gunmap_gpu_mem(void *cgs_device, cgs_handle_t handle) { int r; struct amdgpu_bo *obj = (struct amdgpu_bo *)handle; r = amdgpu_bo_reserve(obj, false); if (unlikely(r != 0)) return r; r = amdgpu_bo_unpin(obj); amdgpu_bo_unreserve(obj); return r; } static int amdgpu_cgs_kmap_gpu_mem(void *cgs_device, cgs_handle_t handle, void **map) { int r; struct amdgpu_bo *obj = (struct amdgpu_bo *)handle; r = amdgpu_bo_reserve(obj, false); if (unlikely(r != 0)) return r; r = amdgpu_bo_kmap(obj, map); amdgpu_bo_unreserve(obj); return r; } static int amdgpu_cgs_kunmap_gpu_mem(void *cgs_device, cgs_handle_t handle) { int r; struct amdgpu_bo *obj = (struct amdgpu_bo *)handle; r = amdgpu_bo_reserve(obj, false); if (unlikely(r != 0)) return r; amdgpu_bo_kunmap(obj); amdgpu_bo_unreserve(obj); return r; } static uint32_t amdgpu_cgs_read_register(void *cgs_device, unsigned offset) { CGS_FUNC_ADEV; return RREG32(offset); } static void amdgpu_cgs_write_register(void *cgs_device, unsigned offset, uint32_t value) { CGS_FUNC_ADEV; WREG32(offset, value); } static uint32_t amdgpu_cgs_read_ind_register(void *cgs_device, enum cgs_ind_reg space, unsigned index) { CGS_FUNC_ADEV; switch (space) { case CGS_IND_REG__MMIO: return RREG32_IDX(index); case CGS_IND_REG__PCIE: return RREG32_PCIE(index); case CGS_IND_REG__SMC: return RREG32_SMC(index); case CGS_IND_REG__UVD_CTX: return RREG32_UVD_CTX(index); case CGS_IND_REG__DIDT: return RREG32_DIDT(index); case CGS_IND_REG__AUDIO_ENDPT: DRM_ERROR("audio endpt register access not implemented.\n"); return 0; } WARN(1, "Invalid indirect register space"); return 0; } static void amdgpu_cgs_write_ind_register(void *cgs_device, enum cgs_ind_reg space, unsigned index, uint32_t value) { CGS_FUNC_ADEV; switch (space) { case CGS_IND_REG__MMIO: return WREG32_IDX(index, value); case CGS_IND_REG__PCIE: return WREG32_PCIE(index, value); case CGS_IND_REG__SMC: return WREG32_SMC(index, value); case CGS_IND_REG__UVD_CTX: return WREG32_UVD_CTX(index, value); case CGS_IND_REG__DIDT: return WREG32_DIDT(index, value); case CGS_IND_REG__AUDIO_ENDPT: DRM_ERROR("audio endpt register access not implemented.\n"); return; } WARN(1, "Invalid indirect register space"); } static uint8_t amdgpu_cgs_read_pci_config_byte(void *cgs_device, unsigned addr) { CGS_FUNC_ADEV; uint8_t val; int ret = pci_read_config_byte(adev->pdev, addr, &val); if (WARN(ret, "pci_read_config_byte error")) return 0; return val; } static uint16_t amdgpu_cgs_read_pci_config_word(void *cgs_device, unsigned addr) { CGS_FUNC_ADEV; uint16_t val; int ret = pci_read_config_word(adev->pdev, addr, &val); if (WARN(ret, "pci_read_config_word error")) return 0; return val; } static uint32_t amdgpu_cgs_read_pci_config_dword(void *cgs_device, unsigned addr) { CGS_FUNC_ADEV; uint32_t val; int ret = pci_read_config_dword(adev->pdev, addr, &val); if (WARN(ret, "pci_read_config_dword error")) return 0; return val; } static void amdgpu_cgs_write_pci_config_byte(void *cgs_device, unsigned addr, uint8_t value) { CGS_FUNC_ADEV; int ret = pci_write_config_byte(adev->pdev, addr, value); WARN(ret, "pci_write_config_byte error"); } static void amdgpu_cgs_write_pci_config_word(void *cgs_device, unsigned addr, uint16_t value) { CGS_FUNC_ADEV; int ret = pci_write_config_word(adev->pdev, addr, value); WARN(ret, "pci_write_config_word error"); } static void amdgpu_cgs_write_pci_config_dword(void *cgs_device, unsigned addr, uint32_t value) { CGS_FUNC_ADEV; int ret = pci_write_config_dword(adev->pdev, addr, value); WARN(ret, "pci_write_config_dword error"); } static const void *amdgpu_cgs_atom_get_data_table(void *cgs_device, unsigned table, uint16_t *size, uint8_t *frev, uint8_t *crev) { CGS_FUNC_ADEV; uint16_t data_start; if (amdgpu_atom_parse_data_header( adev->mode_info.atom_context, table, size, frev, crev, &data_start)) return (uint8_t*)adev->mode_info.atom_context->bios + data_start; return NULL; } static int amdgpu_cgs_atom_get_cmd_table_revs(void *cgs_device, unsigned table, uint8_t *frev, uint8_t *crev) { CGS_FUNC_ADEV; if (amdgpu_atom_parse_cmd_header( adev->mode_info.atom_context, table, frev, crev)) return 0; return -EINVAL; } static int amdgpu_cgs_atom_exec_cmd_table(void *cgs_device, unsigned table, void *args) { CGS_FUNC_ADEV; return amdgpu_atom_execute_table( adev->mode_info.atom_context, table, args); } static int amdgpu_cgs_create_pm_request(void *cgs_device, cgs_handle_t *request) { /* TODO */ return 0; } static int amdgpu_cgs_destroy_pm_request(void *cgs_device, cgs_handle_t request) { /* TODO */ return 0; } static int amdgpu_cgs_set_pm_request(void *cgs_device, cgs_handle_t request, int active) { /* TODO */ return 0; } static int amdgpu_cgs_pm_request_clock(void *cgs_device, cgs_handle_t request, enum cgs_clock clock, unsigned freq) { /* TODO */ return 0; } static int amdgpu_cgs_pm_request_engine(void *cgs_device, cgs_handle_t request, enum cgs_engine engine, int powered) { /* TODO */ return 0; } static int amdgpu_cgs_pm_query_clock_limits(void *cgs_device, enum cgs_clock clock, struct cgs_clock_limits *limits) { /* TODO */ return 0; } static int amdgpu_cgs_set_camera_voltages(void *cgs_device, uint32_t mask, const uint32_t *voltages) { DRM_ERROR("not implemented"); return -EPERM; } struct cgs_irq_params { unsigned src_id; cgs_irq_source_set_func_t set; cgs_irq_handler_func_t handler; void *private_data; }; static int cgs_set_irq_state(struct amdgpu_device *adev, struct amdgpu_irq_src *src, unsigned type, enum amdgpu_interrupt_state state) { struct cgs_irq_params *irq_params = (struct cgs_irq_params *)src->data; if (!irq_params) return -EINVAL; if (!irq_params->set) return -EINVAL; return irq_params->set(irq_params->private_data, irq_params->src_id, type, (int)state); } static int cgs_process_irq(struct amdgpu_device *adev, struct amdgpu_irq_src *source, struct amdgpu_iv_entry *entry) { struct cgs_irq_params *irq_params = (struct cgs_irq_params *)source->data; if (!irq_params) return -EINVAL; if (!irq_params->handler) return -EINVAL; return irq_params->handler(irq_params->private_data, irq_params->src_id, entry->iv_entry); } static const struct amdgpu_irq_src_funcs cgs_irq_funcs = { .set = cgs_set_irq_state, .process = cgs_process_irq, }; static int amdgpu_cgs_add_irq_source(void *cgs_device, unsigned src_id, unsigned num_types, cgs_irq_source_set_func_t set, cgs_irq_handler_func_t handler, void *private_data) { CGS_FUNC_ADEV; int ret = 0; struct cgs_irq_params *irq_params; struct amdgpu_irq_src *source = kzalloc(sizeof(struct amdgpu_irq_src), GFP_KERNEL); if (!source) return -ENOMEM; irq_params = kzalloc(sizeof(struct cgs_irq_params), GFP_KERNEL); if (!irq_params) { kfree(source); return -ENOMEM; } source->num_types = num_types; source->funcs = &cgs_irq_funcs; irq_params->src_id = src_id; irq_params->set = set; irq_params->handler = handler; irq_params->private_data = private_data; source->data = (void *)irq_params; ret = amdgpu_irq_add_id(adev, src_id, source); if (ret) { kfree(irq_params); kfree(source); } return ret; } static int amdgpu_cgs_irq_get(void *cgs_device, unsigned src_id, unsigned type) { CGS_FUNC_ADEV; return amdgpu_irq_get(adev, adev->irq.sources[src_id], type); } static int amdgpu_cgs_irq_put(void *cgs_device, unsigned src_id, unsigned type) { CGS_FUNC_ADEV; return amdgpu_irq_put(adev, adev->irq.sources[src_id], type); } int amdgpu_cgs_set_clockgating_state(void *cgs_device, enum amd_ip_block_type block_type, enum amd_clockgating_state state) { CGS_FUNC_ADEV; int i, r = -1; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_block_status[i].valid) continue; if (adev->ip_blocks[i].type == block_type) { r = adev->ip_blocks[i].funcs->set_clockgating_state( (void *)adev, state); break; } } return r; } int amdgpu_cgs_set_powergating_state(void *cgs_device, enum amd_ip_block_type block_type, enum amd_powergating_state state) { CGS_FUNC_ADEV; int i, r = -1; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_block_status[i].valid) continue; if (adev->ip_blocks[i].type == block_type) { r = adev->ip_blocks[i].funcs->set_powergating_state( (void *)adev, state); break; } } return r; } static uint32_t fw_type_convert(void *cgs_device, uint32_t fw_type) { CGS_FUNC_ADEV; enum AMDGPU_UCODE_ID result = AMDGPU_UCODE_ID_MAXIMUM; switch (fw_type) { case CGS_UCODE_ID_SDMA0: result = AMDGPU_UCODE_ID_SDMA0; break; case CGS_UCODE_ID_SDMA1: result = AMDGPU_UCODE_ID_SDMA1; break; case CGS_UCODE_ID_CP_CE: result = AMDGPU_UCODE_ID_CP_CE; break; case CGS_UCODE_ID_CP_PFP: result = AMDGPU_UCODE_ID_CP_PFP; break; case CGS_UCODE_ID_CP_ME: result = AMDGPU_UCODE_ID_CP_ME; break; case CGS_UCODE_ID_CP_MEC: case CGS_UCODE_ID_CP_MEC_JT1: result = AMDGPU_UCODE_ID_CP_MEC1; break; case CGS_UCODE_ID_CP_MEC_JT2: if (adev->asic_type == CHIP_TONGA) result = AMDGPU_UCODE_ID_CP_MEC2; else if (adev->asic_type == CHIP_CARRIZO) result = AMDGPU_UCODE_ID_CP_MEC1; break; case CGS_UCODE_ID_RLC_G: result = AMDGPU_UCODE_ID_RLC_G; break; default: DRM_ERROR("Firmware type not supported\n"); } return result; } static int amdgpu_cgs_get_firmware_info(void *cgs_device, enum cgs_ucode_id type, struct cgs_firmware_info *info) { CGS_FUNC_ADEV; if (CGS_UCODE_ID_SMU != type) { uint64_t gpu_addr; uint32_t data_size; const struct gfx_firmware_header_v1_0 *header; enum AMDGPU_UCODE_ID id; struct amdgpu_firmware_info *ucode; id = fw_type_convert(cgs_device, type); ucode = &adev->firmware.ucode[id]; if (ucode->fw == NULL) return -EINVAL; gpu_addr = ucode->mc_addr; header = (const struct gfx_firmware_header_v1_0 *)ucode->fw->data; data_size = le32_to_cpu(header->header.ucode_size_bytes); if ((type == CGS_UCODE_ID_CP_MEC_JT1) || (type == CGS_UCODE_ID_CP_MEC_JT2)) { gpu_addr += le32_to_cpu(header->jt_offset) << 2; data_size = le32_to_cpu(header->jt_size) << 2; } info->mc_addr = gpu_addr; info->image_size = data_size; info->version = (uint16_t)le32_to_cpu(header->header.ucode_version); info->feature_version = (uint16_t)le32_to_cpu(header->ucode_feature_version); } else { char fw_name[30] = {0}; int err = 0; uint32_t ucode_size; uint32_t ucode_start_address; const uint8_t *src; const struct smc_firmware_header_v1_0 *hdr; switch (adev->asic_type) { case CHIP_TONGA: strcpy(fw_name, "amdgpu/tonga_smc.bin"); break; case CHIP_FIJI: strcpy(fw_name, "amdgpu/fiji_smc.bin"); break; default: DRM_ERROR("SMC firmware not supported\n"); return -EINVAL; } err = request_firmware(&adev->pm.fw, fw_name, adev->dev); if (err) { DRM_ERROR("Failed to request firmware\n"); return err; } err = amdgpu_ucode_validate(adev->pm.fw); if (err) { DRM_ERROR("Failed to load firmware \"%s\"", fw_name); release_firmware(adev->pm.fw); adev->pm.fw = NULL; return err; } hdr = (const struct smc_firmware_header_v1_0 *) adev->pm.fw->data; adev->pm.fw_version = le32_to_cpu(hdr->header.ucode_version); ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes); ucode_start_address = le32_to_cpu(hdr->ucode_start_addr); src = (const uint8_t *)(adev->pm.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); info->version = adev->pm.fw_version; info->image_size = ucode_size; info->kptr = (void *)src; } return 0; } static int amdgpu_cgs_query_system_info(void *cgs_device, struct cgs_system_info *sys_info) { CGS_FUNC_ADEV; if (NULL == sys_info) return -ENODEV; if (sizeof(struct cgs_system_info) != sys_info->size) return -ENODEV; switch (sys_info->info_id) { case CGS_SYSTEM_INFO_ADAPTER_BDF_ID: sys_info->value = adev->pdev->devfn | (adev->pdev->bus->number << 8); break; case CGS_SYSTEM_INFO_PCIE_GEN_INFO: sys_info->value = adev->pm.pcie_gen_mask; break; case CGS_SYSTEM_INFO_PCIE_MLW: sys_info->value = adev->pm.pcie_mlw_mask; break; default: return -ENODEV; } return 0; } static int amdgpu_cgs_get_active_displays_info(void *cgs_device, struct cgs_display_info *info) { CGS_FUNC_ADEV; struct amdgpu_crtc *amdgpu_crtc; struct drm_device *ddev = adev->ddev; struct drm_crtc *crtc; uint32_t line_time_us, vblank_lines; if (info == NULL) return -EINVAL; if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) { list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) { amdgpu_crtc = to_amdgpu_crtc(crtc); if (crtc->enabled) { info->active_display_mask |= (1 << amdgpu_crtc->crtc_id); info->display_count++; } if (info->mode_info != NULL && crtc->enabled && amdgpu_crtc->enabled && amdgpu_crtc->hw_mode.clock) { line_time_us = (amdgpu_crtc->hw_mode.crtc_htotal * 1000) / amdgpu_crtc->hw_mode.clock; vblank_lines = amdgpu_crtc->hw_mode.crtc_vblank_end - amdgpu_crtc->hw_mode.crtc_vdisplay + (amdgpu_crtc->v_border * 2); info->mode_info->vblank_time_us = vblank_lines * line_time_us; info->mode_info->refresh_rate = drm_mode_vrefresh(&amdgpu_crtc->hw_mode); info->mode_info->ref_clock = adev->clock.spll.reference_freq; info->mode_info++; } } } return 0; } /** \brief evaluate acpi namespace object, handle or pathname must be valid * \param cgs_device * \param info input/output arguments for the control method * \return status */ #if defined(CONFIG_ACPI) static int amdgpu_cgs_acpi_eval_object(void *cgs_device, struct cgs_acpi_method_info *info) { CGS_FUNC_ADEV; acpi_handle handle; struct acpi_object_list input; struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object *params = NULL; union acpi_object *obj = NULL; uint8_t name[5] = {'\0'}; struct cgs_acpi_method_argument *argument = NULL; uint32_t i, count; acpi_status status; int result; uint32_t func_no = 0xFFFFFFFF; handle = ACPI_HANDLE(&adev->pdev->dev); if (!handle) return -ENODEV; memset(&input, 0, sizeof(struct acpi_object_list)); /* validate input info */ if (info->size != sizeof(struct cgs_acpi_method_info)) return -EINVAL; input.count = info->input_count; if (info->input_count > 0) { if (info->pinput_argument == NULL) return -EINVAL; argument = info->pinput_argument; func_no = argument->value; for (i = 0; i < info->input_count; i++) { if (((argument->type == ACPI_TYPE_STRING) || (argument->type == ACPI_TYPE_BUFFER)) && (argument->pointer == NULL)) return -EINVAL; argument++; } } if (info->output_count > 0) { if (info->poutput_argument == NULL) return -EINVAL; argument = info->poutput_argument; for (i = 0; i < info->output_count; i++) { if (((argument->type == ACPI_TYPE_STRING) || (argument->type == ACPI_TYPE_BUFFER)) && (argument->pointer == NULL)) return -EINVAL; argument++; } } /* The path name passed to acpi_evaluate_object should be null terminated */ if ((info->field & CGS_ACPI_FIELD_METHOD_NAME) != 0) { strncpy(name, (char *)&(info->name), sizeof(uint32_t)); name[4] = '\0'; } /* parse input parameters */ if (input.count > 0) { input.pointer = params = kzalloc(sizeof(union acpi_object) * input.count, GFP_KERNEL); if (params == NULL) return -EINVAL; argument = info->pinput_argument; for (i = 0; i < input.count; i++) { params->type = argument->type; switch (params->type) { case ACPI_TYPE_INTEGER: params->integer.value = argument->value; break; case ACPI_TYPE_STRING: params->string.length = argument->method_length; params->string.pointer = argument->pointer; break; case ACPI_TYPE_BUFFER: params->buffer.length = argument->method_length; params->buffer.pointer = argument->pointer; break; default: break; } params++; argument++; } } /* parse output info */ count = info->output_count; argument = info->poutput_argument; /* evaluate the acpi method */ status = acpi_evaluate_object(handle, name, &input, &output); if (ACPI_FAILURE(status)) { result = -EIO; goto error; } /* return the output info */ obj = output.pointer; if (count > 1) { if ((obj->type != ACPI_TYPE_PACKAGE) || (obj->package.count != count)) { result = -EIO; goto error; } params = obj->package.elements; } else params = obj; if (params == NULL) { result = -EIO; goto error; } for (i = 0; i < count; i++) { if (argument->type != params->type) { result = -EIO; goto error; } switch (params->type) { case ACPI_TYPE_INTEGER: argument->value = params->integer.value; break; case ACPI_TYPE_STRING: if ((params->string.length != argument->data_length) || (params->string.pointer == NULL)) { result = -EIO; goto error; } strncpy(argument->pointer, params->string.pointer, params->string.length); break; case ACPI_TYPE_BUFFER: if (params->buffer.pointer == NULL) { result = -EIO; goto error; } memcpy(argument->pointer, params->buffer.pointer, argument->data_length); break; default: break; } argument++; params++; } error: if (obj != NULL) kfree(obj); kfree((void *)input.pointer); return result; } #else static int amdgpu_cgs_acpi_eval_object(void *cgs_device, struct cgs_acpi_method_info *info) { return -EIO; } #endif int amdgpu_cgs_call_acpi_method(void *cgs_device, uint32_t acpi_method, uint32_t acpi_function, void *pinput, void *poutput, uint32_t output_count, uint32_t input_size, uint32_t output_size) { struct cgs_acpi_method_argument acpi_input[2] = { {0}, {0} }; struct cgs_acpi_method_argument acpi_output = {0}; struct cgs_acpi_method_info info = {0}; acpi_input[0].type = CGS_ACPI_TYPE_INTEGER; acpi_input[0].method_length = sizeof(uint32_t); acpi_input[0].data_length = sizeof(uint32_t); acpi_input[0].value = acpi_function; acpi_input[1].type = CGS_ACPI_TYPE_BUFFER; acpi_input[1].method_length = CGS_ACPI_MAX_BUFFER_SIZE; acpi_input[1].data_length = input_size; acpi_input[1].pointer = pinput; acpi_output.type = CGS_ACPI_TYPE_BUFFER; acpi_output.method_length = CGS_ACPI_MAX_BUFFER_SIZE; acpi_output.data_length = output_size; acpi_output.pointer = poutput; info.size = sizeof(struct cgs_acpi_method_info); info.field = CGS_ACPI_FIELD_METHOD_NAME | CGS_ACPI_FIELD_INPUT_ARGUMENT_COUNT; info.input_count = 2; info.name = acpi_method; info.pinput_argument = acpi_input; info.output_count = output_count; info.poutput_argument = &acpi_output; return amdgpu_cgs_acpi_eval_object(cgs_device, &info); } static const struct cgs_ops amdgpu_cgs_ops = { amdgpu_cgs_gpu_mem_info, amdgpu_cgs_gmap_kmem, amdgpu_cgs_gunmap_kmem, amdgpu_cgs_alloc_gpu_mem, amdgpu_cgs_free_gpu_mem, amdgpu_cgs_gmap_gpu_mem, amdgpu_cgs_gunmap_gpu_mem, amdgpu_cgs_kmap_gpu_mem, amdgpu_cgs_kunmap_gpu_mem, amdgpu_cgs_read_register, amdgpu_cgs_write_register, amdgpu_cgs_read_ind_register, amdgpu_cgs_write_ind_register, amdgpu_cgs_read_pci_config_byte, amdgpu_cgs_read_pci_config_word, amdgpu_cgs_read_pci_config_dword, amdgpu_cgs_write_pci_config_byte, amdgpu_cgs_write_pci_config_word, amdgpu_cgs_write_pci_config_dword, amdgpu_cgs_atom_get_data_table, amdgpu_cgs_atom_get_cmd_table_revs, amdgpu_cgs_atom_exec_cmd_table, amdgpu_cgs_create_pm_request, amdgpu_cgs_destroy_pm_request, amdgpu_cgs_set_pm_request, amdgpu_cgs_pm_request_clock, amdgpu_cgs_pm_request_engine, amdgpu_cgs_pm_query_clock_limits, amdgpu_cgs_set_camera_voltages, amdgpu_cgs_get_firmware_info, amdgpu_cgs_set_powergating_state, amdgpu_cgs_set_clockgating_state, amdgpu_cgs_get_active_displays_info, amdgpu_cgs_call_acpi_method, amdgpu_cgs_query_system_info, }; static const struct cgs_os_ops amdgpu_cgs_os_ops = { amdgpu_cgs_add_irq_source, amdgpu_cgs_irq_get, amdgpu_cgs_irq_put }; void *amdgpu_cgs_create_device(struct amdgpu_device *adev) { struct amdgpu_cgs_device *cgs_device = kmalloc(sizeof(*cgs_device), GFP_KERNEL); if (!cgs_device) { DRM_ERROR("Couldn't allocate CGS device structure\n"); return NULL; } cgs_device->base.ops = &amdgpu_cgs_ops; cgs_device->base.os_ops = &amdgpu_cgs_os_ops; cgs_device->adev = adev; return cgs_device; } void amdgpu_cgs_destroy_device(void *cgs_device) { kfree(cgs_device); }