/* * Copyright 2019 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 "amdgpu.h" #include "amdgpu_atomfirmware.h" #include "gmc_v10_0.h" #include "hdp/hdp_5_0_0_offset.h" #include "hdp/hdp_5_0_0_sh_mask.h" #include "gc/gc_10_1_0_sh_mask.h" #include "mmhub/mmhub_2_0_0_sh_mask.h" #include "athub/athub_2_0_0_sh_mask.h" #include "athub/athub_2_0_0_offset.h" #include "dcn/dcn_2_0_0_offset.h" #include "dcn/dcn_2_0_0_sh_mask.h" #include "oss/osssys_5_0_0_offset.h" #include "ivsrcid/vmc/irqsrcs_vmc_1_0.h" #include "navi10_enum.h" #include "soc15.h" #include "soc15d.h" #include "soc15_common.h" #include "nbio_v2_3.h" #include "gfxhub_v2_0.h" #include "mmhub_v2_0.h" #include "athub_v2_0.h" /* XXX Move this macro to navi10 header file, which is like vid.h for VI.*/ #define AMDGPU_NUM_OF_VMIDS 8 #if 0 static const struct soc15_reg_golden golden_settings_navi10_hdp[] = { /* TODO add golden setting for hdp */ }; #endif static int gmc_v10_0_vm_fault_interrupt_state(struct amdgpu_device *adev, struct amdgpu_irq_src *src, unsigned type, enum amdgpu_interrupt_state state) { struct amdgpu_vmhub *hub; u32 tmp, reg, bits[AMDGPU_MAX_VMHUBS], i; bits[AMDGPU_GFXHUB_0] = GCVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | GCVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | GCVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | GCVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | GCVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | GCVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | GCVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK; bits[AMDGPU_MMHUB_0] = MMVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | MMVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | MMVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | MMVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | MMVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | MMVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | MMVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK; switch (state) { case AMDGPU_IRQ_STATE_DISABLE: /* MM HUB */ hub = &adev->vmhub[AMDGPU_MMHUB_0]; for (i = 0; i < 16; i++) { reg = hub->vm_context0_cntl + i; tmp = RREG32(reg); tmp &= ~bits[AMDGPU_MMHUB_0]; WREG32(reg, tmp); } /* GFX HUB */ hub = &adev->vmhub[AMDGPU_GFXHUB_0]; for (i = 0; i < 16; i++) { reg = hub->vm_context0_cntl + i; tmp = RREG32(reg); tmp &= ~bits[AMDGPU_GFXHUB_0]; WREG32(reg, tmp); } break; case AMDGPU_IRQ_STATE_ENABLE: /* MM HUB */ hub = &adev->vmhub[AMDGPU_MMHUB_0]; for (i = 0; i < 16; i++) { reg = hub->vm_context0_cntl + i; tmp = RREG32(reg); tmp |= bits[AMDGPU_MMHUB_0]; WREG32(reg, tmp); } /* GFX HUB */ hub = &adev->vmhub[AMDGPU_GFXHUB_0]; for (i = 0; i < 16; i++) { reg = hub->vm_context0_cntl + i; tmp = RREG32(reg); tmp |= bits[AMDGPU_GFXHUB_0]; WREG32(reg, tmp); } break; default: break; } return 0; } static int gmc_v10_0_process_interrupt(struct amdgpu_device *adev, struct amdgpu_irq_src *source, struct amdgpu_iv_entry *entry) { struct amdgpu_vmhub *hub = &adev->vmhub[entry->vmid_src]; uint32_t status = 0; u64 addr; addr = (u64)entry->src_data[0] << 12; addr |= ((u64)entry->src_data[1] & 0xf) << 44; if (!amdgpu_sriov_vf(adev)) { /* * Issue a dummy read to wait for the status register to * be updated to avoid reading an incorrect value due to * the new fast GRBM interface. */ if (entry->vmid_src == AMDGPU_GFXHUB_0) RREG32(hub->vm_l2_pro_fault_status); status = RREG32(hub->vm_l2_pro_fault_status); WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1); } if (printk_ratelimit()) { struct amdgpu_task_info task_info; memset(&task_info, 0, sizeof(struct amdgpu_task_info)); amdgpu_vm_get_task_info(adev, entry->pasid, &task_info); dev_err(adev->dev, "[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u, " "for process %s pid %d thread %s pid %d)\n", entry->vmid_src ? "mmhub" : "gfxhub", entry->src_id, entry->ring_id, entry->vmid, entry->pasid, task_info.process_name, task_info.tgid, task_info.task_name, task_info.pid); dev_err(adev->dev, " in page starting at address 0x%016llx from client %d\n", addr, entry->client_id); if (!amdgpu_sriov_vf(adev)) { dev_err(adev->dev, "GCVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n", status); dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n", REG_GET_FIELD(status, GCVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS)); dev_err(adev->dev, "\t WALKER_ERROR: 0x%lx\n", REG_GET_FIELD(status, GCVM_L2_PROTECTION_FAULT_STATUS, WALKER_ERROR)); dev_err(adev->dev, "\t PERMISSION_FAULTS: 0x%lx\n", REG_GET_FIELD(status, GCVM_L2_PROTECTION_FAULT_STATUS, PERMISSION_FAULTS)); dev_err(adev->dev, "\t MAPPING_ERROR: 0x%lx\n", REG_GET_FIELD(status, GCVM_L2_PROTECTION_FAULT_STATUS, MAPPING_ERROR)); dev_err(adev->dev, "\t RW: 0x%lx\n", REG_GET_FIELD(status, GCVM_L2_PROTECTION_FAULT_STATUS, RW)); } } return 0; } static const struct amdgpu_irq_src_funcs gmc_v10_0_irq_funcs = { .set = gmc_v10_0_vm_fault_interrupt_state, .process = gmc_v10_0_process_interrupt, }; static void gmc_v10_0_set_irq_funcs(struct amdgpu_device *adev) { adev->gmc.vm_fault.num_types = 1; adev->gmc.vm_fault.funcs = &gmc_v10_0_irq_funcs; } static uint32_t gmc_v10_0_get_invalidate_req(unsigned int vmid, uint32_t flush_type) { u32 req = 0; /* invalidate using legacy mode on vmid*/ req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, PER_VMID_INVALIDATE_REQ, 1 << vmid); req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type); req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1); req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1); req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1); req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1); req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1); req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0); return req; } /** * gmc_v10_0_use_invalidate_semaphore - judge whether to use semaphore * * @adev: amdgpu_device pointer * @vmhub: vmhub type * */ static bool gmc_v10_0_use_invalidate_semaphore(struct amdgpu_device *adev, uint32_t vmhub) { return ((vmhub == AMDGPU_MMHUB_0 || vmhub == AMDGPU_MMHUB_1) && (!amdgpu_sriov_vf(adev))); } static bool gmc_v10_0_get_atc_vmid_pasid_mapping_info( struct amdgpu_device *adev, uint8_t vmid, uint16_t *p_pasid) { uint32_t value; value = RREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING) + vmid); *p_pasid = value & ATC_VMID0_PASID_MAPPING__PASID_MASK; return !!(value & ATC_VMID0_PASID_MAPPING__VALID_MASK); } /* * GART * VMID 0 is the physical GPU addresses as used by the kernel. * VMIDs 1-15 are used for userspace clients and are handled * by the amdgpu vm/hsa code. */ static void gmc_v10_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid, unsigned int vmhub, uint32_t flush_type) { bool use_semaphore = gmc_v10_0_use_invalidate_semaphore(adev, vmhub); struct amdgpu_vmhub *hub = &adev->vmhub[vmhub]; u32 tmp = gmc_v10_0_get_invalidate_req(vmid, flush_type); /* Use register 17 for GART */ const unsigned eng = 17; unsigned int i; spin_lock(&adev->gmc.invalidate_lock); /* * It may lose gpuvm invalidate acknowldege state across power-gating * off cycle, add semaphore acquire before invalidation and semaphore * release after invalidation to avoid entering power gated state * to WA the Issue */ /* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */ if (use_semaphore) { for (i = 0; i < adev->usec_timeout; i++) { /* a read return value of 1 means semaphore acuqire */ tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_sem + eng); if (tmp & 0x1) break; udelay(1); } if (i >= adev->usec_timeout) DRM_ERROR("Timeout waiting for sem acquire in VM flush!\n"); } WREG32_NO_KIQ(hub->vm_inv_eng0_req + eng, tmp); /* * Issue a dummy read to wait for the ACK register to be cleared * to avoid a false ACK due to the new fast GRBM interface. */ if (vmhub == AMDGPU_GFXHUB_0) RREG32_NO_KIQ(hub->vm_inv_eng0_req + eng); /* Wait for ACK with a delay.*/ for (i = 0; i < adev->usec_timeout; i++) { tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng); tmp &= 1 << vmid; if (tmp) break; udelay(1); } /* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */ if (use_semaphore) /* * add semaphore release after invalidation, * write with 0 means semaphore release */ WREG32_NO_KIQ(hub->vm_inv_eng0_sem + eng, 0); spin_unlock(&adev->gmc.invalidate_lock); if (i < adev->usec_timeout) return; DRM_ERROR("Timeout waiting for VM flush ACK!\n"); } /** * gmc_v10_0_flush_gpu_tlb - gart tlb flush callback * * @adev: amdgpu_device pointer * @vmid: vm instance to flush * * Flush the TLB for the requested page table. */ static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid, uint32_t vmhub, uint32_t flush_type) { struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; struct dma_fence *fence; struct amdgpu_job *job; int r; /* flush hdp cache */ adev->nbio.funcs->hdp_flush(adev, NULL); mutex_lock(&adev->mman.gtt_window_lock); if (vmhub == AMDGPU_MMHUB_0) { gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_MMHUB_0, 0); mutex_unlock(&adev->mman.gtt_window_lock); return; } BUG_ON(vmhub != AMDGPU_GFXHUB_0); if (!adev->mman.buffer_funcs_enabled || !adev->ib_pool_ready || adev->in_gpu_reset || ring->sched.ready == false) { gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_GFXHUB_0, 0); mutex_unlock(&adev->mman.gtt_window_lock); return; } /* The SDMA on Navi has a bug which can theoretically result in memory * corruption if an invalidation happens at the same time as an VA * translation. Avoid this by doing the invalidation from the SDMA * itself. */ r = amdgpu_job_alloc_with_ib(adev, 16 * 4, &job); if (r) goto error_alloc; job->vm_pd_addr = amdgpu_gmc_pd_addr(adev->gart.bo); job->vm_needs_flush = true; job->ibs->ptr[job->ibs->length_dw++] = ring->funcs->nop; amdgpu_ring_pad_ib(ring, &job->ibs[0]); r = amdgpu_job_submit(job, &adev->mman.entity, AMDGPU_FENCE_OWNER_UNDEFINED, &fence); if (r) goto error_submit; mutex_unlock(&adev->mman.gtt_window_lock); dma_fence_wait(fence, false); dma_fence_put(fence); return; error_submit: amdgpu_job_free(job); error_alloc: mutex_unlock(&adev->mman.gtt_window_lock); DRM_ERROR("Error flushing GPU TLB using the SDMA (%d)!\n", r); } /** * gmc_v10_0_flush_gpu_tlb_pasid - tlb flush via pasid * * @adev: amdgpu_device pointer * @pasid: pasid to be flush * * Flush the TLB for the requested pasid. */ static int gmc_v10_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev, uint16_t pasid, uint32_t flush_type, bool all_hub) { int vmid, i; signed long r; uint32_t seq; uint16_t queried_pasid; bool ret; struct amdgpu_ring *ring = &adev->gfx.kiq.ring; struct amdgpu_kiq *kiq = &adev->gfx.kiq; if (amdgpu_emu_mode == 0 && ring->sched.ready) { spin_lock(&adev->gfx.kiq.ring_lock); amdgpu_ring_alloc(ring, kiq->pmf->invalidate_tlbs_size); kiq->pmf->kiq_invalidate_tlbs(ring, pasid, flush_type, all_hub); amdgpu_fence_emit_polling(ring, &seq); amdgpu_ring_commit(ring); spin_unlock(&adev->gfx.kiq.ring_lock); r = amdgpu_fence_wait_polling(ring, seq, adev->usec_timeout); if (r < 1) { DRM_ERROR("wait for kiq fence error: %ld.\n", r); return -ETIME; } return 0; } for (vmid = 1; vmid < 16; vmid++) { ret = gmc_v10_0_get_atc_vmid_pasid_mapping_info(adev, vmid, &queried_pasid); if (ret && queried_pasid == pasid) { if (all_hub) { for (i = 0; i < adev->num_vmhubs; i++) gmc_v10_0_flush_gpu_tlb(adev, vmid, i, 0); } else { gmc_v10_0_flush_gpu_tlb(adev, vmid, AMDGPU_GFXHUB_0, 0); } break; } } return 0; } static uint64_t gmc_v10_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring, unsigned vmid, uint64_t pd_addr) { bool use_semaphore = gmc_v10_0_use_invalidate_semaphore(ring->adev, ring->funcs->vmhub); struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub]; uint32_t req = gmc_v10_0_get_invalidate_req(vmid, 0); unsigned eng = ring->vm_inv_eng; /* * It may lose gpuvm invalidate acknowldege state across power-gating * off cycle, add semaphore acquire before invalidation and semaphore * release after invalidation to avoid entering power gated state * to WA the Issue */ /* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */ if (use_semaphore) /* a read return value of 1 means semaphore acuqire */ amdgpu_ring_emit_reg_wait(ring, hub->vm_inv_eng0_sem + eng, 0x1, 0x1); amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_lo32 + (2 * vmid), lower_32_bits(pd_addr)); amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 + (2 * vmid), upper_32_bits(pd_addr)); amdgpu_ring_emit_reg_write_reg_wait(ring, hub->vm_inv_eng0_req + eng, hub->vm_inv_eng0_ack + eng, req, 1 << vmid); /* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */ if (use_semaphore) /* * add semaphore release after invalidation, * write with 0 means semaphore release */ amdgpu_ring_emit_wreg(ring, hub->vm_inv_eng0_sem + eng, 0); return pd_addr; } static void gmc_v10_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid, unsigned pasid) { struct amdgpu_device *adev = ring->adev; uint32_t reg; if (ring->funcs->vmhub == AMDGPU_GFXHUB_0) reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid; else reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT_MM) + vmid; amdgpu_ring_emit_wreg(ring, reg, pasid); } /* * PTE format on NAVI 10: * 63:59 reserved * 58:57 reserved * 56 F * 55 L * 54 reserved * 53:52 SW * 51 T * 50:48 mtype * 47:12 4k physical page base address * 11:7 fragment * 6 write * 5 read * 4 exe * 3 Z * 2 snooped * 1 system * 0 valid * * PDE format on NAVI 10: * 63:59 block fragment size * 58:55 reserved * 54 P * 53:48 reserved * 47:6 physical base address of PD or PTE * 5:3 reserved * 2 C * 1 system * 0 valid */ static uint64_t gmc_v10_0_map_mtype(struct amdgpu_device *adev, uint32_t flags) { switch (flags) { case AMDGPU_VM_MTYPE_DEFAULT: return AMDGPU_PTE_MTYPE_NV10(MTYPE_NC); case AMDGPU_VM_MTYPE_NC: return AMDGPU_PTE_MTYPE_NV10(MTYPE_NC); case AMDGPU_VM_MTYPE_WC: return AMDGPU_PTE_MTYPE_NV10(MTYPE_WC); case AMDGPU_VM_MTYPE_CC: return AMDGPU_PTE_MTYPE_NV10(MTYPE_CC); case AMDGPU_VM_MTYPE_UC: return AMDGPU_PTE_MTYPE_NV10(MTYPE_UC); default: return AMDGPU_PTE_MTYPE_NV10(MTYPE_NC); } } static void gmc_v10_0_get_vm_pde(struct amdgpu_device *adev, int level, uint64_t *addr, uint64_t *flags) { if (!(*flags & AMDGPU_PDE_PTE) && !(*flags & AMDGPU_PTE_SYSTEM)) *addr = adev->vm_manager.vram_base_offset + *addr - adev->gmc.vram_start; BUG_ON(*addr & 0xFFFF00000000003FULL); if (!adev->gmc.translate_further) return; if (level == AMDGPU_VM_PDB1) { /* Set the block fragment size */ if (!(*flags & AMDGPU_PDE_PTE)) *flags |= AMDGPU_PDE_BFS(0x9); } else if (level == AMDGPU_VM_PDB0) { if (*flags & AMDGPU_PDE_PTE) *flags &= ~AMDGPU_PDE_PTE; else *flags |= AMDGPU_PTE_TF; } } static void gmc_v10_0_get_vm_pte(struct amdgpu_device *adev, struct amdgpu_bo_va_mapping *mapping, uint64_t *flags) { *flags &= ~AMDGPU_PTE_EXECUTABLE; *flags |= mapping->flags & AMDGPU_PTE_EXECUTABLE; *flags &= ~AMDGPU_PTE_MTYPE_NV10_MASK; *flags |= (mapping->flags & AMDGPU_PTE_MTYPE_NV10_MASK); if (mapping->flags & AMDGPU_PTE_PRT) { *flags |= AMDGPU_PTE_PRT; *flags |= AMDGPU_PTE_SNOOPED; *flags |= AMDGPU_PTE_LOG; *flags |= AMDGPU_PTE_SYSTEM; *flags &= ~AMDGPU_PTE_VALID; } } static const struct amdgpu_gmc_funcs gmc_v10_0_gmc_funcs = { .flush_gpu_tlb = gmc_v10_0_flush_gpu_tlb, .flush_gpu_tlb_pasid = gmc_v10_0_flush_gpu_tlb_pasid, .emit_flush_gpu_tlb = gmc_v10_0_emit_flush_gpu_tlb, .emit_pasid_mapping = gmc_v10_0_emit_pasid_mapping, .map_mtype = gmc_v10_0_map_mtype, .get_vm_pde = gmc_v10_0_get_vm_pde, .get_vm_pte = gmc_v10_0_get_vm_pte }; static void gmc_v10_0_set_gmc_funcs(struct amdgpu_device *adev) { if (adev->gmc.gmc_funcs == NULL) adev->gmc.gmc_funcs = &gmc_v10_0_gmc_funcs; } static int gmc_v10_0_early_init(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; gmc_v10_0_set_gmc_funcs(adev); gmc_v10_0_set_irq_funcs(adev); adev->gmc.shared_aperture_start = 0x2000000000000000ULL; adev->gmc.shared_aperture_end = adev->gmc.shared_aperture_start + (4ULL << 30) - 1; adev->gmc.private_aperture_start = 0x1000000000000000ULL; adev->gmc.private_aperture_end = adev->gmc.private_aperture_start + (4ULL << 30) - 1; return 0; } static int gmc_v10_0_late_init(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; int r; /* * Can't free the stolen VGA memory when it might be used for memory * training again. */ if (!adev->fw_vram_usage.mem_train_support) amdgpu_bo_late_init(adev); r = amdgpu_gmc_allocate_vm_inv_eng(adev); if (r) return r; return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0); } static void gmc_v10_0_vram_gtt_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc) { u64 base = 0; base = gfxhub_v2_0_get_fb_location(adev); amdgpu_gmc_vram_location(adev, &adev->gmc, base); amdgpu_gmc_gart_location(adev, mc); /* base offset of vram pages */ adev->vm_manager.vram_base_offset = gfxhub_v2_0_get_mc_fb_offset(adev); } /** * gmc_v10_0_mc_init - initialize the memory controller driver params * * @adev: amdgpu_device pointer * * Look up the amount of vram, vram width, and decide how to place * vram and gart within the GPU's physical address space. * Returns 0 for success. */ static int gmc_v10_0_mc_init(struct amdgpu_device *adev) { /* Could aper size report 0 ? */ adev->gmc.aper_base = pci_resource_start(adev->pdev, 0); adev->gmc.aper_size = pci_resource_len(adev->pdev, 0); /* size in MB on si */ adev->gmc.mc_vram_size = adev->nbio.funcs->get_memsize(adev) * 1024ULL * 1024ULL; adev->gmc.real_vram_size = adev->gmc.mc_vram_size; adev->gmc.visible_vram_size = adev->gmc.aper_size; /* In case the PCI BAR is larger than the actual amount of vram */ if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size) adev->gmc.visible_vram_size = adev->gmc.real_vram_size; /* set the gart size */ if (amdgpu_gart_size == -1) { switch (adev->asic_type) { case CHIP_NAVI10: case CHIP_NAVI14: case CHIP_NAVI12: default: adev->gmc.gart_size = 512ULL << 20; break; } } else adev->gmc.gart_size = (u64)amdgpu_gart_size << 20; gmc_v10_0_vram_gtt_location(adev, &adev->gmc); return 0; } static int gmc_v10_0_gart_init(struct amdgpu_device *adev) { int r; if (adev->gart.bo) { WARN(1, "NAVI10 PCIE GART already initialized\n"); return 0; } /* Initialize common gart structure */ r = amdgpu_gart_init(adev); if (r) return r; adev->gart.table_size = adev->gart.num_gpu_pages * 8; adev->gart.gart_pte_flags = AMDGPU_PTE_MTYPE_NV10(MTYPE_UC) | AMDGPU_PTE_EXECUTABLE; return amdgpu_gart_table_vram_alloc(adev); } static unsigned gmc_v10_0_get_vbios_fb_size(struct amdgpu_device *adev) { u32 d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL); unsigned size; if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) { size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */ } else { u32 viewport; u32 pitch; viewport = RREG32_SOC15(DCE, 0, mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION); pitch = RREG32_SOC15(DCE, 0, mmHUBPREQ0_DCSURF_SURFACE_PITCH); size = (REG_GET_FIELD(viewport, HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) * REG_GET_FIELD(pitch, HUBPREQ0_DCSURF_SURFACE_PITCH, PITCH) * 4); } /* return 0 if the pre-OS buffer uses up most of vram */ if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024)) { DRM_ERROR("Warning: pre-OS buffer uses most of vram, \ be aware of gart table overwrite\n"); return 0; } return size; } static int gmc_v10_0_sw_init(void *handle) { int r, vram_width = 0, vram_type = 0, vram_vendor = 0; struct amdgpu_device *adev = (struct amdgpu_device *)handle; gfxhub_v2_0_init(adev); mmhub_v2_0_init(adev); spin_lock_init(&adev->gmc.invalidate_lock); r = amdgpu_atomfirmware_get_vram_info(adev, &vram_width, &vram_type, &vram_vendor); if (!amdgpu_emu_mode) adev->gmc.vram_width = vram_width; else adev->gmc.vram_width = 1 * 128; /* numchan * chansize */ adev->gmc.vram_type = vram_type; adev->gmc.vram_vendor = vram_vendor; switch (adev->asic_type) { case CHIP_NAVI10: case CHIP_NAVI14: case CHIP_NAVI12: adev->num_vmhubs = 2; /* * To fulfill 4-level page support, * vm size is 256TB (48bit), maximum size of Navi10/Navi14/Navi12, * block size 512 (9bit) */ amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48); break; default: break; } /* This interrupt is VMC page fault.*/ r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VMC, VMC_1_0__SRCID__VM_FAULT, &adev->gmc.vm_fault); if (r) return r; r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_UTCL2, UTCL2_1_0__SRCID__FAULT, &adev->gmc.vm_fault); if (r) return r; /* * Set the internal MC address mask This is the max address of the GPU's * internal address space. */ adev->gmc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */ r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(44)); if (r) { printk(KERN_WARNING "amdgpu: No suitable DMA available.\n"); return r; } r = gmc_v10_0_mc_init(adev); if (r) return r; adev->gmc.stolen_size = gmc_v10_0_get_vbios_fb_size(adev); /* * In dual GPUs scenario, stolen_size is assigned to zero on the * secondary GPU, since there is no pre-OS console using that memory. * Then the bottom region of VRAM was allocated as GTT, unfortunately a * small region of bottom VRAM was encroached by UMC firmware during * GDDR6 BIST training, this cause page fault. * The page fault can be fixed by forcing stolen_size to 3MB, then the * bottom region of VRAM was allocated as stolen memory, GTT corruption * avoid. */ adev->gmc.stolen_size = max(adev->gmc.stolen_size, AMDGPU_STOLEN_BIST_TRAINING_DEFAULT_SIZE); /* Memory manager */ r = amdgpu_bo_init(adev); if (r) return r; r = gmc_v10_0_gart_init(adev); if (r) return r; /* * number of VMs * VMID 0 is reserved for System * amdgpu graphics/compute will use VMIDs 1-7 * amdkfd will use VMIDs 8-15 */ adev->vm_manager.id_mgr[AMDGPU_GFXHUB_0].num_ids = AMDGPU_NUM_OF_VMIDS; adev->vm_manager.id_mgr[AMDGPU_MMHUB_0].num_ids = AMDGPU_NUM_OF_VMIDS; amdgpu_vm_manager_init(adev); return 0; } /** * gmc_v8_0_gart_fini - vm fini callback * * @adev: amdgpu_device pointer * * Tears down the driver GART/VM setup (CIK). */ static void gmc_v10_0_gart_fini(struct amdgpu_device *adev) { amdgpu_gart_table_vram_free(adev); amdgpu_gart_fini(adev); } static int gmc_v10_0_sw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; void *stolen_vga_buf; /* * Free the stolen memory if it wasn't already freed in late_init * because of memory training. */ amdgpu_bo_free_kernel(&adev->stolen_vga_memory, NULL, &stolen_vga_buf); amdgpu_vm_manager_fini(adev); gmc_v10_0_gart_fini(adev); amdgpu_gem_force_release(adev); amdgpu_bo_fini(adev); return 0; } static void gmc_v10_0_init_golden_registers(struct amdgpu_device *adev) { switch (adev->asic_type) { case CHIP_NAVI10: case CHIP_NAVI14: case CHIP_NAVI12: break; default: break; } } /** * gmc_v10_0_gart_enable - gart enable * * @adev: amdgpu_device pointer */ static int gmc_v10_0_gart_enable(struct amdgpu_device *adev) { int r; bool value; u32 tmp; if (adev->gart.bo == NULL) { dev_err(adev->dev, "No VRAM object for PCIE GART.\n"); return -EINVAL; } r = amdgpu_gart_table_vram_pin(adev); if (r) return r; r = gfxhub_v2_0_gart_enable(adev); if (r) return r; r = mmhub_v2_0_gart_enable(adev); if (r) return r; tmp = RREG32_SOC15(HDP, 0, mmHDP_MISC_CNTL); tmp |= HDP_MISC_CNTL__FLUSH_INVALIDATE_CACHE_MASK; WREG32_SOC15(HDP, 0, mmHDP_MISC_CNTL, tmp); tmp = RREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL); WREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL, tmp); /* Flush HDP after it is initialized */ adev->nbio.funcs->hdp_flush(adev, NULL); value = (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) ? false : true; gfxhub_v2_0_set_fault_enable_default(adev, value); mmhub_v2_0_set_fault_enable_default(adev, value); gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_MMHUB_0, 0); gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_GFXHUB_0, 0); DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", (unsigned)(adev->gmc.gart_size >> 20), (unsigned long long)amdgpu_bo_gpu_offset(adev->gart.bo)); adev->gart.ready = true; return 0; } static int gmc_v10_0_hw_init(void *handle) { int r; struct amdgpu_device *adev = (struct amdgpu_device *)handle; /* The sequence of these two function calls matters.*/ gmc_v10_0_init_golden_registers(adev); r = gmc_v10_0_gart_enable(adev); if (r) return r; return 0; } /** * gmc_v10_0_gart_disable - gart disable * * @adev: amdgpu_device pointer * * This disables all VM page table. */ static void gmc_v10_0_gart_disable(struct amdgpu_device *adev) { gfxhub_v2_0_gart_disable(adev); mmhub_v2_0_gart_disable(adev); amdgpu_gart_table_vram_unpin(adev); } static int gmc_v10_0_hw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; if (amdgpu_sriov_vf(adev)) { /* full access mode, so don't touch any GMC register */ DRM_DEBUG("For SRIOV client, shouldn't do anything.\n"); return 0; } amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0); gmc_v10_0_gart_disable(adev); return 0; } static int gmc_v10_0_suspend(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; gmc_v10_0_hw_fini(adev); return 0; } static int gmc_v10_0_resume(void *handle) { int r; struct amdgpu_device *adev = (struct amdgpu_device *)handle; r = gmc_v10_0_hw_init(adev); if (r) return r; amdgpu_vmid_reset_all(adev); return 0; } static bool gmc_v10_0_is_idle(void *handle) { /* MC is always ready in GMC v10.*/ return true; } static int gmc_v10_0_wait_for_idle(void *handle) { /* There is no need to wait for MC idle in GMC v10.*/ return 0; } static int gmc_v10_0_soft_reset(void *handle) { return 0; } static int gmc_v10_0_set_clockgating_state(void *handle, enum amd_clockgating_state state) { int r; struct amdgpu_device *adev = (struct amdgpu_device *)handle; r = mmhub_v2_0_set_clockgating(adev, state); if (r) return r; return athub_v2_0_set_clockgating(adev, state); } static void gmc_v10_0_get_clockgating_state(void *handle, u32 *flags) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; mmhub_v2_0_get_clockgating(adev, flags); athub_v2_0_get_clockgating(adev, flags); } static int gmc_v10_0_set_powergating_state(void *handle, enum amd_powergating_state state) { return 0; } const struct amd_ip_funcs gmc_v10_0_ip_funcs = { .name = "gmc_v10_0", .early_init = gmc_v10_0_early_init, .late_init = gmc_v10_0_late_init, .sw_init = gmc_v10_0_sw_init, .sw_fini = gmc_v10_0_sw_fini, .hw_init = gmc_v10_0_hw_init, .hw_fini = gmc_v10_0_hw_fini, .suspend = gmc_v10_0_suspend, .resume = gmc_v10_0_resume, .is_idle = gmc_v10_0_is_idle, .wait_for_idle = gmc_v10_0_wait_for_idle, .soft_reset = gmc_v10_0_soft_reset, .set_clockgating_state = gmc_v10_0_set_clockgating_state, .set_powergating_state = gmc_v10_0_set_powergating_state, .get_clockgating_state = gmc_v10_0_get_clockgating_state, }; const struct amdgpu_ip_block_version gmc_v10_0_ip_block = { .type = AMD_IP_BLOCK_TYPE_GMC, .major = 10, .minor = 0, .rev = 0, .funcs = &gmc_v10_0_ip_funcs, };