diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 265 |
1 files changed, 203 insertions, 62 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index e630d918fefc..efcacb827de7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -56,6 +56,7 @@ #include "amdgpu_vf_error.h" #include "amdgpu_amdkfd.h" +#include "amdgpu_pm.h" MODULE_FIRMWARE("amdgpu/vega10_gpu_info.bin"); MODULE_FIRMWARE("amdgpu/raven_gpu_info.bin"); @@ -65,6 +66,7 @@ MODULE_FIRMWARE("amdgpu/raven_gpu_info.bin"); static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev); static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev); static int amdgpu_debugfs_test_ib_ring_init(struct amdgpu_device *adev); +static int amdgpu_debugfs_vbios_dump_init(struct amdgpu_device *adev); static const char *amdgpu_asic_name[] = { "TAHITI", @@ -107,10 +109,8 @@ uint32_t amdgpu_mm_rreg(struct amdgpu_device *adev, uint32_t reg, { uint32_t ret; - if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev)) { - BUG_ON(in_interrupt()); + if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev)) return amdgpu_virt_kiq_rreg(adev, reg); - } if ((reg * 4) < adev->rmmio_size && !(acc_flags & AMDGPU_REGS_IDX)) ret = readl(((void __iomem *)adev->rmmio) + (reg * 4)); @@ -135,10 +135,8 @@ void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v, adev->last_mm_index = v; } - if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev)) { - BUG_ON(in_interrupt()); + if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev)) return amdgpu_virt_kiq_wreg(adev, reg, v); - } if ((reg * 4) < adev->rmmio_size && !(acc_flags & AMDGPU_REGS_IDX)) writel(v, ((void __iomem *)adev->rmmio) + (reg * 4)); @@ -402,6 +400,15 @@ void amdgpu_pci_config_reset(struct amdgpu_device *adev) */ static int amdgpu_doorbell_init(struct amdgpu_device *adev) { + /* No doorbell on SI hardware generation */ + if (adev->asic_type < CHIP_BONAIRE) { + adev->doorbell.base = 0; + adev->doorbell.size = 0; + adev->doorbell.num_doorbells = 0; + adev->doorbell.ptr = NULL; + return 0; + } + /* doorbell bar mapping */ adev->doorbell.base = pci_resource_start(adev->pdev, 2); adev->doorbell.size = pci_resource_len(adev->pdev, 2); @@ -539,7 +546,7 @@ int amdgpu_wb_get(struct amdgpu_device *adev, u32 *wb) if (offset < adev->wb.num_wb) { __set_bit(offset, adev->wb.used); - *wb = offset * 8; /* convert to dw offset */ + *wb = offset << 3; /* convert to dw offset */ return 0; } else { return -EINVAL; @@ -557,7 +564,7 @@ int amdgpu_wb_get(struct amdgpu_device *adev, u32 *wb) void amdgpu_wb_free(struct amdgpu_device *adev, u32 wb) { if (wb < adev->wb.num_wb) - __clear_bit(wb, adev->wb.used); + __clear_bit(wb >> 3, adev->wb.used); } /** @@ -647,42 +654,96 @@ void amdgpu_gart_location(struct amdgpu_device *adev, struct amdgpu_mc *mc) } /* - * GPU helpers function. + * Firmware Reservation functions */ /** - * amdgpu_need_post - check if the hw need post or not + * amdgpu_fw_reserve_vram_fini - free fw reserved vram * * @adev: amdgpu_device pointer * - * Check if the asic has been initialized (all asics) at driver startup - * or post is needed if hw reset is performed. - * Returns true if need or false if not. + * free fw reserved vram if it has been reserved. */ -bool amdgpu_need_post(struct amdgpu_device *adev) +void amdgpu_fw_reserve_vram_fini(struct amdgpu_device *adev) { - uint32_t reg; + amdgpu_bo_free_kernel(&adev->fw_vram_usage.reserved_bo, + NULL, &adev->fw_vram_usage.va); +} - if (adev->has_hw_reset) { - adev->has_hw_reset = false; - return true; - } +/** + * amdgpu_fw_reserve_vram_init - create bo vram reservation from fw + * + * @adev: amdgpu_device pointer + * + * create bo vram reservation from fw. + */ +int amdgpu_fw_reserve_vram_init(struct amdgpu_device *adev) +{ + int r = 0; + u64 gpu_addr; + u64 vram_size = adev->mc.visible_vram_size; - /* bios scratch used on CIK+ */ - if (adev->asic_type >= CHIP_BONAIRE) - return amdgpu_atombios_scratch_need_asic_init(adev); + adev->fw_vram_usage.va = NULL; + adev->fw_vram_usage.reserved_bo = NULL; - /* check MEM_SIZE for older asics */ - reg = amdgpu_asic_get_config_memsize(adev); + if (adev->fw_vram_usage.size > 0 && + adev->fw_vram_usage.size <= vram_size) { - if ((reg != 0) && (reg != 0xffffffff)) - return false; + r = amdgpu_bo_create(adev, adev->fw_vram_usage.size, + PAGE_SIZE, true, 0, + AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | + AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS, NULL, NULL, 0, + &adev->fw_vram_usage.reserved_bo); + if (r) + goto error_create; - return true; + r = amdgpu_bo_reserve(adev->fw_vram_usage.reserved_bo, false); + if (r) + goto error_reserve; + r = amdgpu_bo_pin_restricted(adev->fw_vram_usage.reserved_bo, + AMDGPU_GEM_DOMAIN_VRAM, + adev->fw_vram_usage.start_offset, + (adev->fw_vram_usage.start_offset + + adev->fw_vram_usage.size), &gpu_addr); + if (r) + goto error_pin; + r = amdgpu_bo_kmap(adev->fw_vram_usage.reserved_bo, + &adev->fw_vram_usage.va); + if (r) + goto error_kmap; + + amdgpu_bo_unreserve(adev->fw_vram_usage.reserved_bo); + } + return r; +error_kmap: + amdgpu_bo_unpin(adev->fw_vram_usage.reserved_bo); +error_pin: + amdgpu_bo_unreserve(adev->fw_vram_usage.reserved_bo); +error_reserve: + amdgpu_bo_unref(&adev->fw_vram_usage.reserved_bo); +error_create: + adev->fw_vram_usage.va = NULL; + adev->fw_vram_usage.reserved_bo = NULL; + return r; } -static bool amdgpu_vpost_needed(struct amdgpu_device *adev) + +/* + * GPU helpers function. + */ +/** + * amdgpu_need_post - check if the hw need post or not + * + * @adev: amdgpu_device pointer + * + * Check if the asic has been initialized (all asics) at driver startup + * or post is needed if hw reset is performed. + * Returns true if need or false if not. + */ +bool amdgpu_need_post(struct amdgpu_device *adev) { + uint32_t reg; + if (amdgpu_sriov_vf(adev)) return false; @@ -705,7 +766,23 @@ static bool amdgpu_vpost_needed(struct amdgpu_device *adev) return true; } } - return amdgpu_need_post(adev); + + if (adev->has_hw_reset) { + adev->has_hw_reset = false; + return true; + } + + /* bios scratch used on CIK+ */ + if (adev->asic_type >= CHIP_BONAIRE) + return amdgpu_atombios_scratch_need_asic_init(adev); + + /* check MEM_SIZE for older asics */ + reg = amdgpu_asic_get_config_memsize(adev); + + if ((reg != 0) && (reg != 0xffffffff)) + return false; + + return true; } /** @@ -887,6 +964,20 @@ static uint32_t cail_ioreg_read(struct card_info *info, uint32_t reg) return r; } +static ssize_t amdgpu_atombios_get_vbios_version(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct drm_device *ddev = dev_get_drvdata(dev); + struct amdgpu_device *adev = ddev->dev_private; + struct atom_context *ctx = adev->mode_info.atom_context; + + return snprintf(buf, PAGE_SIZE, "%s\n", ctx->vbios_version); +} + +static DEVICE_ATTR(vbios_version, 0444, amdgpu_atombios_get_vbios_version, + NULL); + /** * amdgpu_atombios_fini - free the driver info and callbacks for atombios * @@ -906,6 +997,7 @@ static void amdgpu_atombios_fini(struct amdgpu_device *adev) adev->mode_info.atom_context = NULL; kfree(adev->mode_info.atom_card_info); adev->mode_info.atom_card_info = NULL; + device_remove_file(adev->dev, &dev_attr_vbios_version); } /** @@ -922,6 +1014,7 @@ static int amdgpu_atombios_init(struct amdgpu_device *adev) { struct card_info *atom_card_info = kzalloc(sizeof(struct card_info), GFP_KERNEL); + int ret; if (!atom_card_info) return -ENOMEM; @@ -958,6 +1051,13 @@ static int amdgpu_atombios_init(struct amdgpu_device *adev) amdgpu_atombios_scratch_regs_init(adev); amdgpu_atombios_allocate_fb_scratch(adev); } + + ret = device_create_file(adev->dev, &dev_attr_vbios_version); + if (ret) { + DRM_ERROR("Failed to create device file for VBIOS version\n"); + return ret; + } + return 0; } @@ -1757,10 +1857,8 @@ static int amdgpu_fini(struct amdgpu_device *adev) adev->ip_blocks[i].status.late_initialized = false; } - if (amdgpu_sriov_vf(adev)) { - amdgpu_bo_free_kernel(&adev->virt.csa_obj, &adev->virt.csa_vmid0_addr, NULL); + if (amdgpu_sriov_vf(adev)) amdgpu_virt_release_full_gpu(adev, false); - } return 0; } @@ -1848,6 +1946,7 @@ static int amdgpu_sriov_reinit_late(struct amdgpu_device *adev) static enum amd_ip_block_type ip_order[] = { AMD_IP_BLOCK_TYPE_SMC, + AMD_IP_BLOCK_TYPE_PSP, AMD_IP_BLOCK_TYPE_DCE, AMD_IP_BLOCK_TYPE_GFX, AMD_IP_BLOCK_TYPE_SDMA, @@ -1933,12 +2032,17 @@ static int amdgpu_resume(struct amdgpu_device *adev) static void amdgpu_device_detect_sriov_bios(struct amdgpu_device *adev) { - if (adev->is_atom_fw) { - if (amdgpu_atomfirmware_gpu_supports_virtualization(adev)) - adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS; - } else { - if (amdgpu_atombios_has_gpu_virtualization_table(adev)) - adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS; + if (amdgpu_sriov_vf(adev)) { + if (adev->is_atom_fw) { + if (amdgpu_atomfirmware_gpu_supports_virtualization(adev)) + adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS; + } else { + if (amdgpu_atombios_has_gpu_virtualization_table(adev)) + adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS; + } + + if (!(adev->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS)) + amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_NO_VBIOS, 0, 0); } } @@ -1979,6 +2083,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, adev->vm_manager.vm_pte_num_rings = 0; adev->gart.gart_funcs = NULL; adev->fence_context = dma_fence_context_alloc(AMDGPU_MAX_RINGS); + bitmap_zero(adev->gfx.pipe_reserve_bitmap, AMDGPU_MAX_COMPUTE_QUEUES); adev->smc_rreg = &amdgpu_invalid_rreg; adev->smc_wreg = &amdgpu_invalid_wreg; @@ -2007,8 +2112,10 @@ int amdgpu_device_init(struct amdgpu_device *adev, mutex_init(&adev->pm.mutex); mutex_init(&adev->gfx.gpu_clock_mutex); mutex_init(&adev->srbm_mutex); + mutex_init(&adev->gfx.pipe_reserve_mutex); mutex_init(&adev->grbm_idx_mutex); mutex_init(&adev->mn_lock); + mutex_init(&adev->virt.vf_errors.lock); hash_init(adev->mn_hash); amdgpu_check_arguments(adev); @@ -2051,9 +2158,8 @@ int amdgpu_device_init(struct amdgpu_device *adev, DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)adev->rmmio_base); DRM_INFO("register mmio size: %u\n", (unsigned)adev->rmmio_size); - if (adev->asic_type >= CHIP_BONAIRE) - /* doorbell bar mapping */ - amdgpu_doorbell_init(adev); + /* doorbell bar mapping */ + amdgpu_doorbell_init(adev); /* io port mapping */ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { @@ -2095,7 +2201,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, r = amdgpu_atombios_init(adev); if (r) { dev_err(adev->dev, "amdgpu_atombios_init failed\n"); - amdgpu_vf_error_put(AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0); + amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0); goto failed; } @@ -2103,10 +2209,9 @@ int amdgpu_device_init(struct amdgpu_device *adev, amdgpu_device_detect_sriov_bios(adev); /* Post card if necessary */ - if (amdgpu_vpost_needed(adev)) { + if (amdgpu_need_post(adev)) { if (!adev->bios) { dev_err(adev->dev, "no vBIOS found\n"); - amdgpu_vf_error_put(AMDGIM_ERROR_VF_NO_VBIOS, 0, 0); r = -EINVAL; goto failed; } @@ -2114,7 +2219,6 @@ int amdgpu_device_init(struct amdgpu_device *adev, r = amdgpu_atom_asic_init(adev->mode_info.atom_context); if (r) { dev_err(adev->dev, "gpu post error!\n"); - amdgpu_vf_error_put(AMDGIM_ERROR_VF_GPU_POST_ERROR, 0, 0); goto failed; } } else { @@ -2126,7 +2230,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, r = amdgpu_atomfirmware_get_clock_info(adev); if (r) { dev_err(adev->dev, "amdgpu_atomfirmware_get_clock_info failed\n"); - amdgpu_vf_error_put(AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL, 0, 0); + amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL, 0, 0); goto failed; } } else { @@ -2134,7 +2238,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, r = amdgpu_atombios_get_clock_info(adev); if (r) { dev_err(adev->dev, "amdgpu_atombios_get_clock_info failed\n"); - amdgpu_vf_error_put(AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL, 0, 0); + amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL, 0, 0); goto failed; } /* init i2c buses */ @@ -2145,7 +2249,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, r = amdgpu_fence_driver_init(adev); if (r) { dev_err(adev->dev, "amdgpu_fence_driver_init failed\n"); - amdgpu_vf_error_put(AMDGIM_ERROR_VF_FENCE_INIT_FAIL, 0, 0); + amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_FENCE_INIT_FAIL, 0, 0); goto failed; } @@ -2155,7 +2259,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, r = amdgpu_init(adev); if (r) { dev_err(adev->dev, "amdgpu_init failed\n"); - amdgpu_vf_error_put(AMDGIM_ERROR_VF_AMDGPU_INIT_FAIL, 0, 0); + amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_AMDGPU_INIT_FAIL, 0, 0); amdgpu_fini(adev); goto failed; } @@ -2175,7 +2279,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, r = amdgpu_ib_pool_init(adev); if (r) { dev_err(adev->dev, "IB initialization failed (%d).\n", r); - amdgpu_vf_error_put(AMDGIM_ERROR_VF_IB_INIT_FAIL, 0, r); + amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_IB_INIT_FAIL, 0, r); goto failed; } @@ -2183,8 +2287,15 @@ int amdgpu_device_init(struct amdgpu_device *adev, if (r) DRM_ERROR("ib ring test failed (%d).\n", r); + if (amdgpu_sriov_vf(adev)) + amdgpu_virt_init_data_exchange(adev); + amdgpu_fbdev_init(adev); + r = amdgpu_pm_sysfs_init(adev); + if (r) + DRM_ERROR("registering pm debugfs failed (%d).\n", r); + r = amdgpu_gem_debugfs_init(adev); if (r) DRM_ERROR("registering gem debugfs failed (%d).\n", r); @@ -2201,6 +2312,10 @@ int amdgpu_device_init(struct amdgpu_device *adev, if (r) DRM_ERROR("registering firmware debugfs failed (%d).\n", r); + r = amdgpu_debugfs_vbios_dump_init(adev); + if (r) + DRM_ERROR("Creating vbios dump debugfs failed (%d).\n", r); + if ((amdgpu_testing & 1)) { if (adev->accel_working) amdgpu_test_moves(adev); @@ -2220,7 +2335,7 @@ int amdgpu_device_init(struct amdgpu_device *adev, r = amdgpu_late_init(adev); if (r) { dev_err(adev->dev, "amdgpu_late_init failed\n"); - amdgpu_vf_error_put(AMDGIM_ERROR_VF_AMDGPU_LATE_INIT_FAIL, 0, r); + amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_AMDGPU_LATE_INIT_FAIL, 0, r); goto failed; } @@ -2252,6 +2367,7 @@ void amdgpu_device_fini(struct amdgpu_device *adev) /* evict vram memory */ amdgpu_bo_evict_vram(adev); amdgpu_ib_pool_fini(adev); + amdgpu_fw_reserve_vram_fini(adev); amdgpu_fence_driver_fini(adev); amdgpu_fbdev_fini(adev); r = amdgpu_fini(adev); @@ -2276,8 +2392,8 @@ void amdgpu_device_fini(struct amdgpu_device *adev) adev->rio_mem = NULL; iounmap(adev->rmmio); adev->rmmio = NULL; - if (adev->asic_type >= CHIP_BONAIRE) - amdgpu_doorbell_fini(adev); + amdgpu_doorbell_fini(adev); + amdgpu_pm_sysfs_fini(adev); amdgpu_debugfs_regs_cleanup(adev); } @@ -2504,6 +2620,9 @@ static bool amdgpu_check_soft_reset(struct amdgpu_device *adev) int i; bool asic_hang = false; + if (amdgpu_sriov_vf(adev)) + return true; + for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) continue; @@ -2546,7 +2665,8 @@ static bool amdgpu_need_full_reset(struct amdgpu_device *adev) if ((adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) || (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) || (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_ACP) || - (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE)) { + (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE) || + adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP) { if (adev->ip_blocks[i].status.hang) { DRM_INFO("Some block need full reset!\n"); return true; @@ -2654,7 +2774,7 @@ int amdgpu_sriov_gpu_reset(struct amdgpu_device *adev, struct amdgpu_job *job) mutex_lock(&adev->virt.lock_reset); atomic_inc(&adev->gpu_reset_counter); - adev->gfx.in_reset = true; + adev->in_sriov_reset = true; /* block TTM */ resched = ttm_bo_lock_delayed_workqueue(&adev->mman.bdev); @@ -2765,7 +2885,7 @@ give_up_reset: dev_info(adev->dev, "GPU reset successed!\n"); } - adev->gfx.in_reset = false; + adev->in_sriov_reset = false; mutex_unlock(&adev->virt.lock_reset); return r; } @@ -2902,7 +3022,6 @@ out: } } else { dev_err(adev->dev, "asic resume failed (%d).\n", r); - amdgpu_vf_error_put(AMDGIM_ERROR_VF_ASIC_RESUME_FAIL, 0, r); for (i = 0; i < AMDGPU_MAX_RINGS; ++i) { if (adev->rings[i] && adev->rings[i]->sched.thread) { kthread_unpark(adev->rings[i]->sched.thread); @@ -2916,7 +3035,6 @@ out: if (r) { /* bad news, how to tell it to userspace ? */ dev_info(adev->dev, "GPU reset failed\n"); - amdgpu_vf_error_put(AMDGIM_ERROR_VF_GPU_RESET_FAIL, 0, r); } else { dev_info(adev->dev, "GPU reset successed!\n"); @@ -3463,10 +3581,7 @@ static ssize_t amdgpu_debugfs_sensor_read(struct file *f, char __user *buf, valuesize = sizeof(values); if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->read_sensor) - r = adev->powerplay.pp_funcs->read_sensor(adev->powerplay.pp_handle, idx, &values[0], &valuesize); - else if (adev->pm.funcs && adev->pm.funcs->read_sensor) - r = adev->pm.funcs->read_sensor(adev, idx, &values[0], - &valuesize); + r = amdgpu_dpm_read_sensor(adev, idx, &values[0], &valuesize); else return -EINVAL; @@ -3754,6 +3869,28 @@ int amdgpu_debugfs_init(struct drm_minor *minor) { return 0; } + +static int amdgpu_debugfs_get_vbios_dump(struct seq_file *m, void *data) +{ + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + struct amdgpu_device *adev = dev->dev_private; + + seq_write(m, adev->bios, adev->bios_size); + return 0; +} + +static const struct drm_info_list amdgpu_vbios_dump_list[] = { + {"amdgpu_vbios", + amdgpu_debugfs_get_vbios_dump, + 0, NULL}, +}; + +static int amdgpu_debugfs_vbios_dump_init(struct amdgpu_device *adev) +{ + return amdgpu_debugfs_add_files(adev, + amdgpu_vbios_dump_list, 1); +} #else static int amdgpu_debugfs_test_ib_ring_init(struct amdgpu_device *adev) { @@ -3763,5 +3900,9 @@ static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev) { return 0; } +static int amdgpu_debugfs_vbios_dump_init(struct amdgpu_device *adev) +{ + return 0; +} static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev) { } #endif |