/* * Copyright 2021 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 "amdgpu.h" #include "amdgpu_atomfirmware.h" #include "gmc_v11_0.h" #include "umc_v8_10.h" #include "athub/athub_3_0_0_sh_mask.h" #include "athub/athub_3_0_0_offset.h" #include "dcn/dcn_3_2_0_offset.h" #include "dcn/dcn_3_2_0_sh_mask.h" #include "oss/osssys_6_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_v4_3.h" #include "gfxhub_v3_0.h" #include "gfxhub_v3_0_3.h" #include "mmhub_v3_0.h" #include "mmhub_v3_0_1.h" #include "mmhub_v3_0_2.h" #include "athub_v3_0.h" static int gmc_v11_0_ecc_interrupt_state(struct amdgpu_device *adev, struct amdgpu_irq_src *src, unsigned type, enum amdgpu_interrupt_state state) { return 0; } static int gmc_v11_0_vm_fault_interrupt_state(struct amdgpu_device *adev, struct amdgpu_irq_src *src, unsigned type, enum amdgpu_interrupt_state state) { switch (state) { case AMDGPU_IRQ_STATE_DISABLE: /* MM HUB */ amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_MMHUB_0, false); /* GFX HUB */ amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB_0, false); break; case AMDGPU_IRQ_STATE_ENABLE: /* MM HUB */ amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_MMHUB_0, true); /* GFX HUB */ amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB_0, true); break; default: break; } return 0; } static int gmc_v11_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)) hub->vmhub_funcs->print_l2_protection_fault_status(adev, status); } return 0; } static const struct amdgpu_irq_src_funcs gmc_v11_0_irq_funcs = { .set = gmc_v11_0_vm_fault_interrupt_state, .process = gmc_v11_0_process_interrupt, }; static const struct amdgpu_irq_src_funcs gmc_v11_0_ecc_funcs = { .set = gmc_v11_0_ecc_interrupt_state, .process = amdgpu_umc_process_ecc_irq, }; static void gmc_v11_0_set_irq_funcs(struct amdgpu_device *adev) { adev->gmc.vm_fault.num_types = 1; adev->gmc.vm_fault.funcs = &gmc_v11_0_irq_funcs; if (!amdgpu_sriov_vf(adev)) { adev->gmc.ecc_irq.num_types = 1; adev->gmc.ecc_irq.funcs = &gmc_v11_0_ecc_funcs; } } /** * gmc_v11_0_use_invalidate_semaphore - judge whether to use semaphore * * @adev: amdgpu_device pointer * @vmhub: vmhub type * */ static bool gmc_v11_0_use_invalidate_semaphore(struct amdgpu_device *adev, uint32_t vmhub) { return ((vmhub == AMDGPU_MMHUB_0) && (!amdgpu_sriov_vf(adev))); } static bool gmc_v11_0_get_vmid_pasid_mapping_info( struct amdgpu_device *adev, uint8_t vmid, uint16_t *p_pasid) { *p_pasid = RREG32(SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT) + vmid) & 0xffff; return !!(*p_pasid); } /* * 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_v11_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid, unsigned int vmhub, uint32_t flush_type) { bool use_semaphore = gmc_v11_0_use_invalidate_semaphore(adev, vmhub); struct amdgpu_vmhub *hub = &adev->vmhub[vmhub]; u32 inv_req = hub->vmhub_funcs->get_invalidate_req(vmid, flush_type); u32 tmp; /* Use register 17 for GART */ const unsigned eng = 17; unsigned int i; unsigned char hub_ip = 0; hub_ip = (vmhub == AMDGPU_GFXHUB_0) ? GC_HWIP : MMHUB_HWIP; 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_RLC_NO_KIQ(hub->vm_inv_eng0_sem + hub->eng_distance * eng, hub_ip); if (tmp & 0x1) break; udelay(1); } if (i >= adev->usec_timeout) DRM_ERROR("Timeout waiting for sem acquire in VM flush!\n"); } WREG32_RLC_NO_KIQ(hub->vm_inv_eng0_req + hub->eng_distance * eng, inv_req, hub_ip); /* Wait for ACK with a delay.*/ for (i = 0; i < adev->usec_timeout; i++) { tmp = RREG32_RLC_NO_KIQ(hub->vm_inv_eng0_ack + hub->eng_distance * eng, hub_ip); 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_RLC_NO_KIQ(hub->vm_inv_eng0_sem + hub->eng_distance * eng, 0, hub_ip); /* Issue additional private vm invalidation to MMHUB */ if ((vmhub != AMDGPU_GFXHUB_0) && (hub->vm_l2_bank_select_reserved_cid2) && !amdgpu_sriov_vf(adev)) { inv_req = RREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2); /* bit 25: RSERVED_CACHE_PRIVATE_INVALIDATION */ inv_req |= (1 << 25); /* Issue private invalidation */ WREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2, inv_req); /* Read back to ensure invalidation is done*/ RREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2); } spin_unlock(&adev->gmc.invalidate_lock); if (i < adev->usec_timeout) return; DRM_ERROR("Timeout waiting for VM flush ACK!\n"); } /** * gmc_v11_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_v11_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid, uint32_t vmhub, uint32_t flush_type) { if ((vmhub == AMDGPU_GFXHUB_0) && !adev->gfx.is_poweron) return; /* flush hdp cache */ adev->hdp.funcs->flush_hdp(adev, NULL); /* For SRIOV run time, driver shouldn't access the register through MMIO * Directly use kiq to do the vm invalidation instead */ if ((adev->gfx.kiq.ring.sched.ready || adev->mes.ring.sched.ready) && (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev))) { struct amdgpu_vmhub *hub = &adev->vmhub[vmhub]; const unsigned eng = 17; u32 inv_req = hub->vmhub_funcs->get_invalidate_req(vmid, flush_type); u32 req = hub->vm_inv_eng0_req + hub->eng_distance * eng; u32 ack = hub->vm_inv_eng0_ack + hub->eng_distance * eng; amdgpu_virt_kiq_reg_write_reg_wait(adev, req, ack, inv_req, 1 << vmid); return; } mutex_lock(&adev->mman.gtt_window_lock); gmc_v11_0_flush_vm_hub(adev, vmid, vmhub, 0); mutex_unlock(&adev->mman.gtt_window_lock); return; } /** * gmc_v11_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_v11_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); /* 2 dwords flush + 8 dwords fence */ amdgpu_ring_alloc(ring, kiq->pmf->invalidate_tlbs_size + 8); kiq->pmf->kiq_invalidate_tlbs(ring, pasid, flush_type, all_hub); r = amdgpu_fence_emit_polling(ring, &seq, MAX_KIQ_REG_WAIT); if (r) { amdgpu_ring_undo(ring); spin_unlock(&adev->gfx.kiq.ring_lock); return -ETIME; } amdgpu_ring_commit(ring); spin_unlock(&adev->gfx.kiq.ring_lock); r = amdgpu_fence_wait_polling(ring, seq, adev->usec_timeout); if (r < 1) { dev_err(adev->dev, "wait for kiq fence error: %ld.\n", r); return -ETIME; } return 0; } for (vmid = 1; vmid < 16; vmid++) { ret = gmc_v11_0_get_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_v11_0_flush_gpu_tlb(adev, vmid, i, flush_type); } else { gmc_v11_0_flush_gpu_tlb(adev, vmid, AMDGPU_GFXHUB_0, flush_type); } } } return 0; } static uint64_t gmc_v11_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring, unsigned vmid, uint64_t pd_addr) { bool use_semaphore = gmc_v11_0_use_invalidate_semaphore(ring->adev, ring->funcs->vmhub); struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub]; uint32_t req = hub->vmhub_funcs->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 + hub->eng_distance * eng, 0x1, 0x1); amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_lo32 + (hub->ctx_addr_distance * vmid), lower_32_bits(pd_addr)); amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 + (hub->ctx_addr_distance * vmid), upper_32_bits(pd_addr)); amdgpu_ring_emit_reg_write_reg_wait(ring, hub->vm_inv_eng0_req + hub->eng_distance * eng, hub->vm_inv_eng0_ack + hub->eng_distance * 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 + hub->eng_distance * eng, 0); return pd_addr; } static void gmc_v11_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid, unsigned pasid) { struct amdgpu_device *adev = ring->adev; uint32_t reg; /* MES fw manages IH_VMID_x_LUT updating */ if (ring->is_mes_queue) return; if (ring->funcs->vmhub == AMDGPU_GFXHUB_0) reg = SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT) + vmid; else reg = SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT_MM) + vmid; amdgpu_ring_emit_wreg(ring, reg, pasid); } /* * PTE format: * 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: * 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_v11_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_v11_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_v11_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); *flags &= ~AMDGPU_PTE_NOALLOC; *flags |= (mapping->flags & AMDGPU_PTE_NOALLOC); 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 unsigned gmc_v11_0_get_vbios_fb_size(struct amdgpu_device *adev) { u32 d1vga_control = RREG32_SOC15(DCE, 0, regD1VGA_CONTROL); unsigned size; if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) { size = AMDGPU_VBIOS_VGA_ALLOCATION; } else { u32 viewport; u32 pitch; viewport = RREG32_SOC15(DCE, 0, regHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION); pitch = RREG32_SOC15(DCE, 0, regHUBPREQ0_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 size; } static const struct amdgpu_gmc_funcs gmc_v11_0_gmc_funcs = { .flush_gpu_tlb = gmc_v11_0_flush_gpu_tlb, .flush_gpu_tlb_pasid = gmc_v11_0_flush_gpu_tlb_pasid, .emit_flush_gpu_tlb = gmc_v11_0_emit_flush_gpu_tlb, .emit_pasid_mapping = gmc_v11_0_emit_pasid_mapping, .map_mtype = gmc_v11_0_map_mtype, .get_vm_pde = gmc_v11_0_get_vm_pde, .get_vm_pte = gmc_v11_0_get_vm_pte, .get_vbios_fb_size = gmc_v11_0_get_vbios_fb_size, }; static void gmc_v11_0_set_gmc_funcs(struct amdgpu_device *adev) { adev->gmc.gmc_funcs = &gmc_v11_0_gmc_funcs; } static void gmc_v11_0_set_umc_funcs(struct amdgpu_device *adev) { switch (adev->ip_versions[UMC_HWIP][0]) { case IP_VERSION(8, 10, 0): adev->umc.channel_inst_num = UMC_V8_10_CHANNEL_INSTANCE_NUM; adev->umc.umc_inst_num = UMC_V8_10_UMC_INSTANCE_NUM; adev->umc.node_inst_num = adev->gmc.num_umc; adev->umc.max_ras_err_cnt_per_query = UMC_V8_10_TOTAL_CHANNEL_NUM(adev); adev->umc.channel_offs = UMC_V8_10_PER_CHANNEL_OFFSET; adev->umc.channel_idx_tbl = &umc_v8_10_channel_idx_tbl[0][0][0]; adev->umc.ras = &umc_v8_10_ras; break; case IP_VERSION(8, 11, 0): break; default: break; } if (adev->umc.ras) { amdgpu_ras_register_ras_block(adev, &adev->umc.ras->ras_block); strcpy(adev->umc.ras->ras_block.ras_comm.name, "umc"); adev->umc.ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__UMC; adev->umc.ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE; adev->umc.ras_if = &adev->umc.ras->ras_block.ras_comm; /* If don't define special ras_late_init function, use default ras_late_init */ if (!adev->umc.ras->ras_block.ras_late_init) adev->umc.ras->ras_block.ras_late_init = amdgpu_umc_ras_late_init; /* If not define special ras_cb function, use default ras_cb */ if (!adev->umc.ras->ras_block.ras_cb) adev->umc.ras->ras_block.ras_cb = amdgpu_umc_process_ras_data_cb; } } static void gmc_v11_0_set_mmhub_funcs(struct amdgpu_device *adev) { switch (adev->ip_versions[MMHUB_HWIP][0]) { case IP_VERSION(3, 0, 1): adev->mmhub.funcs = &mmhub_v3_0_1_funcs; break; case IP_VERSION(3, 0, 2): adev->mmhub.funcs = &mmhub_v3_0_2_funcs; break; default: adev->mmhub.funcs = &mmhub_v3_0_funcs; break; } } static void gmc_v11_0_set_gfxhub_funcs(struct amdgpu_device *adev) { switch (adev->ip_versions[GC_HWIP][0]) { case IP_VERSION(11, 0, 3): adev->gfxhub.funcs = &gfxhub_v3_0_3_funcs; break; default: adev->gfxhub.funcs = &gfxhub_v3_0_funcs; break; } } static int gmc_v11_0_early_init(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; gmc_v11_0_set_gfxhub_funcs(adev); gmc_v11_0_set_mmhub_funcs(adev); gmc_v11_0_set_gmc_funcs(adev); gmc_v11_0_set_irq_funcs(adev); gmc_v11_0_set_umc_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_v11_0_late_init(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; int r; r = amdgpu_gmc_allocate_vm_inv_eng(adev); if (r) return r; r = amdgpu_gmc_ras_late_init(adev); if (r) return r; return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0); } static void gmc_v11_0_vram_gtt_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc) { u64 base = 0; base = adev->mmhub.funcs->get_fb_location(adev); amdgpu_gmc_vram_location(adev, &adev->gmc, base); amdgpu_gmc_gart_location(adev, mc); /* base offset of vram pages */ if (amdgpu_sriov_vf(adev)) adev->vm_manager.vram_base_offset = 0; else adev->vm_manager.vram_base_offset = adev->mmhub.funcs->get_mc_fb_offset(adev); } /** * gmc_v11_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_v11_0_mc_init(struct amdgpu_device *adev) { int r; /* 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; if (!(adev->flags & AMD_IS_APU)) { r = amdgpu_device_resize_fb_bar(adev); if (r) return r; } adev->gmc.aper_base = pci_resource_start(adev->pdev, 0); adev->gmc.aper_size = pci_resource_len(adev->pdev, 0); #ifdef CONFIG_X86_64 if ((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev)) { adev->gmc.aper_base = adev->mmhub.funcs->get_mc_fb_offset(adev); adev->gmc.aper_size = adev->gmc.real_vram_size; } #endif /* In case the PCI BAR is larger than the actual amount of vram */ adev->gmc.visible_vram_size = adev->gmc.aper_size; 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) { adev->gmc.gart_size = 512ULL << 20; } else adev->gmc.gart_size = (u64)amdgpu_gart_size << 20; gmc_v11_0_vram_gtt_location(adev, &adev->gmc); return 0; } static int gmc_v11_0_gart_init(struct amdgpu_device *adev) { int r; if (adev->gart.bo) { WARN(1, "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 int gmc_v11_0_sw_init(void *handle) { int r, vram_width = 0, vram_type = 0, vram_vendor = 0; struct amdgpu_device *adev = (struct amdgpu_device *)handle; adev->mmhub.funcs->init(adev); spin_lock_init(&adev->gmc.invalidate_lock); r = amdgpu_atomfirmware_get_vram_info(adev, &vram_width, &vram_type, &vram_vendor); adev->gmc.vram_width = vram_width; adev->gmc.vram_type = vram_type; adev->gmc.vram_vendor = vram_vendor; switch (adev->ip_versions[GC_HWIP][0]) { case IP_VERSION(11, 0, 0): case IP_VERSION(11, 0, 1): case IP_VERSION(11, 0, 2): case IP_VERSION(11, 0, 3): case IP_VERSION(11, 0, 4): adev->num_vmhubs = 2; /* * To fulfill 4-level page support, * vm size is 256TB (48bit), maximum size, * 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, SOC21_IH_CLIENTID_VMC, VMC_1_0__SRCID__VM_FAULT, &adev->gmc.vm_fault); if (r) return r; r = amdgpu_irq_add_id(adev, SOC21_IH_CLIENTID_GFX, UTCL2_1_0__SRCID__FAULT, &adev->gmc.vm_fault); if (r) return r; if (!amdgpu_sriov_vf(adev)) { /* interrupt sent to DF. */ r = amdgpu_irq_add_id(adev, SOC21_IH_CLIENTID_DF, 0, &adev->gmc.ecc_irq); 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; } adev->need_swiotlb = drm_need_swiotlb(44); r = gmc_v11_0_mc_init(adev); if (r) return r; amdgpu_gmc_get_vbios_allocations(adev); /* Memory manager */ r = amdgpu_bo_init(adev); if (r) return r; r = gmc_v11_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.first_kfd_vmid = 8; amdgpu_vm_manager_init(adev); return 0; } /** * gmc_v11_0_gart_fini - vm fini callback * * @adev: amdgpu_device pointer * * Tears down the driver GART/VM setup (CIK). */ static void gmc_v11_0_gart_fini(struct amdgpu_device *adev) { amdgpu_gart_table_vram_free(adev); } static int gmc_v11_0_sw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; amdgpu_vm_manager_fini(adev); gmc_v11_0_gart_fini(adev); amdgpu_gem_force_release(adev); amdgpu_bo_fini(adev); return 0; } static void gmc_v11_0_init_golden_registers(struct amdgpu_device *adev) { } /** * gmc_v11_0_gart_enable - gart enable * * @adev: amdgpu_device pointer */ static int gmc_v11_0_gart_enable(struct amdgpu_device *adev) { int r; bool value; if (adev->gart.bo == NULL) { dev_err(adev->dev, "No VRAM object for PCIE GART.\n"); return -EINVAL; } amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr); r = adev->mmhub.funcs->gart_enable(adev); if (r) return r; /* Flush HDP after it is initialized */ adev->hdp.funcs->flush_hdp(adev, NULL); value = (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) ? false : true; adev->mmhub.funcs->set_fault_enable_default(adev, value); gmc_v11_0_flush_gpu_tlb(adev, 0, AMDGPU_MMHUB_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)); return 0; } static int gmc_v11_0_hw_init(void *handle) { int r; struct amdgpu_device *adev = (struct amdgpu_device *)handle; /* The sequence of these two function calls matters.*/ gmc_v11_0_init_golden_registers(adev); r = gmc_v11_0_gart_enable(adev); if (r) return r; if (adev->umc.funcs && adev->umc.funcs->init_registers) adev->umc.funcs->init_registers(adev); return 0; } /** * gmc_v11_0_gart_disable - gart disable * * @adev: amdgpu_device pointer * * This disables all VM page table. */ static void gmc_v11_0_gart_disable(struct amdgpu_device *adev) { adev->mmhub.funcs->gart_disable(adev); } static int gmc_v11_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_v11_0_gart_disable(adev); return 0; } static int gmc_v11_0_suspend(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; gmc_v11_0_hw_fini(adev); return 0; } static int gmc_v11_0_resume(void *handle) { int r; struct amdgpu_device *adev = (struct amdgpu_device *)handle; r = gmc_v11_0_hw_init(adev); if (r) return r; amdgpu_vmid_reset_all(adev); return 0; } static bool gmc_v11_0_is_idle(void *handle) { /* MC is always ready in GMC v11.*/ return true; } static int gmc_v11_0_wait_for_idle(void *handle) { /* There is no need to wait for MC idle in GMC v11.*/ return 0; } static int gmc_v11_0_soft_reset(void *handle) { return 0; } static int gmc_v11_0_set_clockgating_state(void *handle, enum amd_clockgating_state state) { int r; struct amdgpu_device *adev = (struct amdgpu_device *)handle; r = adev->mmhub.funcs->set_clockgating(adev, state); if (r) return r; return athub_v3_0_set_clockgating(adev, state); } static void gmc_v11_0_get_clockgating_state(void *handle, u64 *flags) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; adev->mmhub.funcs->get_clockgating(adev, flags); athub_v3_0_get_clockgating(adev, flags); } static int gmc_v11_0_set_powergating_state(void *handle, enum amd_powergating_state state) { return 0; } const struct amd_ip_funcs gmc_v11_0_ip_funcs = { .name = "gmc_v11_0", .early_init = gmc_v11_0_early_init, .sw_init = gmc_v11_0_sw_init, .hw_init = gmc_v11_0_hw_init, .late_init = gmc_v11_0_late_init, .sw_fini = gmc_v11_0_sw_fini, .hw_fini = gmc_v11_0_hw_fini, .suspend = gmc_v11_0_suspend, .resume = gmc_v11_0_resume, .is_idle = gmc_v11_0_is_idle, .wait_for_idle = gmc_v11_0_wait_for_idle, .soft_reset = gmc_v11_0_soft_reset, .set_clockgating_state = gmc_v11_0_set_clockgating_state, .set_powergating_state = gmc_v11_0_set_powergating_state, .get_clockgating_state = gmc_v11_0_get_clockgating_state, }; const struct amdgpu_ip_block_version gmc_v11_0_ip_block = { .type = AMD_IP_BLOCK_TYPE_GMC, .major = 11, .minor = 0, .rev = 0, .funcs = &gmc_v11_0_ip_funcs, };