litmus-rt-odroidx.git - LITMUS^RT and MC^2 V0 support for the ODROID-X dev board

diff options

Diffstat (limited to 'mm/hugetlb.c')

-rw-r--r--

1 files changed, 13 insertions, 11 deletions

          * and just make the page writable */
         avoidcopy = (page_mapcount(old_page) == 1);
         if (avoidcopy) {
-                if (!trylock_page(old_page)) {
+                if (PageAnon(old_page))
-                        if (PageAnon(old_page))
+                        page_move_anon_rmap(old_page, vma, address);
-                                page_move_anon_rmap(old_page, vma, address);
-                } else
-                        unlock_page(old_page);
                 set_huge_ptep_writable(vma, address, ptep);
                 return 0;
         }
                 set_huge_pte_at(mm, address, ptep,
                                 make_huge_pte(vma, new_page, 1));
                 page_remove_rmap(old_page);
-                hugepage_add_anon_rmap(new_page, vma, address);
+                hugepage_add_new_anon_rmap(new_page, vma, address);
                 /* Make the old page be freed below */
                 new_page = old_page;
                 mmu_notifier_invalidate_range_end(mm,
                                                                 vma, address);
         }
-        if (!pagecache_page) {
+        /*
-                page = pte_page(entry);
+         * hugetlb_cow() requires page locks of pte_page(entry) and
+         * pagecache_page, so here we need take the former one
+         * when page != pagecache_page or !pagecache_page.
+         * Note that locking order is always pagecache_page -> page,
+         * so no worry about deadlock.
+         */
+        page = pte_page(entry);
+        if (page != pagecache_page)
                 lock_page(page);
-        }
         spin_lock(&mm->page_table_lock);
         /* Check for a racing update before calling hugetlb_cow */
         if (pagecache_page) {
                 unlock_page(pagecache_page);
                 put_page(pagecache_page);
-        } else {
-                unlock_page(page);
         }
+        unlock_page(page);
 out_mutex:
         mutex_unlock(&hugetlb_instantiation_mutex);

/* * Copyright 2008 Advanced Micro Devices, Inc. * Copyright 2008 Red Hat Inc. * Copyright 2009 Jerome Glisse. * * 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. * * Authors: Dave Airlie * Alex Deucher * Jerome Glisse */ #include <linux/kthread.h> #include <linux/console.h> #include <linux/slab.h> #include <drm/drmP.h> #include <drm/drm_crtc_helper.h> #include <drm/drm_atomic_helper.h> #include <drm/amdgpu_drm.h> #include <linux/vgaarb.h> #include <linux/vga_switcheroo.h> #include <linux/efi.h> #include "amdgpu.h" #include "amdgpu_trace.h" #include "amdgpu_i2c.h" #include "atom.h" #include "amdgpu_atombios.h" #include "amdgpu_atomfirmware.h" #include "amd_pcie.h" #ifdef CONFIG_DRM_AMDGPU_SI #include "si.h" #endif #ifdef CONFIG_DRM_AMDGPU_CIK #include "cik.h" #endif #include "vi.h" #include "soc15.h" #include "bif/bif_4_1_d.h" #include <linux/pci.h> #include <linux/firmware.h> #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"); #define AMDGPU_RESUME_MS 2000 static const char *amdgpu_asic_name[] = { "TAHITI", "PITCAIRN", "VERDE", "OLAND", "HAINAN", "BONAIRE", "KAVERI", "KABINI", "HAWAII", "MULLINS", "TOPAZ", "TONGA", "FIJI", "CARRIZO", "STONEY", "POLARIS10", "POLARIS11", "POLARIS12", "VEGA10", "RAVEN", "LAST", }; bool amdgpu_device_is_px(struct drm_device *dev) { struct amdgpu_device *adev = dev->dev_private; if (adev->flags & AMD_IS_PX) return true; return false; } /* * MMIO register access helper functions. */ uint32_t amdgpu_mm_rreg(struct amdgpu_device *adev, uint32_t reg, uint32_t acc_flags) { uint32_t ret; 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)); else { unsigned long flags; spin_lock_irqsave(&adev->mmio_idx_lock, flags); writel((reg * 4), ((void __iomem *)adev->rmmio) + (mmMM_INDEX * 4)); ret = readl(((void __iomem *)adev->rmmio) + (mmMM_DATA * 4)); spin_unlock_irqrestore(&adev->mmio_idx_lock, flags); } trace_amdgpu_mm_rreg(adev->pdev->device, reg, ret); return ret; } void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v, uint32_t acc_flags) { trace_amdgpu_mm_wreg(adev->pdev->device, reg, v); if (adev->asic_type >= CHIP_VEGA10 && reg == 0) { adev->last_mm_index = v; } 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)); else { unsigned long flags; spin_lock_irqsave(&adev->mmio_idx_lock, flags); writel((reg * 4), ((void __iomem *)adev->rmmio) + (mmMM_INDEX * 4)); writel(v, ((void __iomem *)adev->rmmio) + (mmMM_DATA * 4)); spin_unlock_irqrestore(&adev->mmio_idx_lock, flags); } if (adev->asic_type >= CHIP_VEGA10 && reg == 1 && adev->last_mm_index == 0x5702C) { udelay(500); } } u32 amdgpu_io_rreg(struct amdgpu_device *adev, u32 reg) { if ((reg * 4) < adev->rio_mem_size) return ioread32(adev->rio_mem + (reg * 4)); else { iowrite32((reg * 4), adev->rio_mem + (mmMM_INDEX * 4)); return ioread32(adev->rio_mem + (mmMM_DATA * 4)); } } void amdgpu_io_wreg(struct amdgpu_device *adev, u32 reg, u32 v) { if (adev->asic_type >= CHIP_VEGA10 && reg == 0) { adev->last_mm_index = v; } if ((reg * 4) < adev->rio_mem_size) iowrite32(v, adev->rio_mem + (reg * 4)); else { iowrite32((reg * 4), adev->rio_mem + (mmMM_INDEX * 4)); iowrite32(v, adev->rio_mem + (mmMM_DATA * 4)); } if (adev->asic_type >= CHIP_VEGA10 && reg == 1 && adev->last_mm_index == 0x5702C) { udelay(500); } } /** * amdgpu_mm_rdoorbell - read a doorbell dword * * @adev: amdgpu_device pointer * @index: doorbell index * * Returns the value in the doorbell aperture at the * requested doorbell index (CIK). */ u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index) { if (index < adev->doorbell.num_doorbells) { return readl(adev->doorbell.ptr + index); } else { DRM_ERROR("reading beyond doorbell aperture: 0x%08x!\n", index); return 0; } } /** * amdgpu_mm_wdoorbell - write a doorbell dword * * @adev: amdgpu_device pointer * @index: doorbell index * @v: value to write * * Writes @v to the doorbell aperture at the * requested doorbell index (CIK). */ void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v) { if (index < adev->doorbell.num_doorbells) { writel(v, adev->doorbell.ptr + index); } else { DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", index); } } /** * amdgpu_mm_rdoorbell64 - read a doorbell Qword * * @adev: amdgpu_device pointer * @index: doorbell index * * Returns the value in the doorbell aperture at the * requested doorbell index (VEGA10+). */ u64 amdgpu_mm_rdoorbell64(struct amdgpu_device *adev, u32 index) { if (index < adev->doorbell.num_doorbells) { return atomic64_read((atomic64_t *)(adev->doorbell.ptr + index)); } else { DRM_ERROR("reading beyond doorbell aperture: 0x%08x!\n", index); return 0; } } /** * amdgpu_mm_wdoorbell64 - write a doorbell Qword * * @adev: amdgpu_device pointer * @index: doorbell index * @v: value to write * * Writes @v to the doorbell aperture at the * requested doorbell index (VEGA10+). */ void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v) { if (index < adev->doorbell.num_doorbells) { atomic64_set((atomic64_t *)(adev->doorbell.ptr + index), v); } else { DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", index); } } /** * amdgpu_invalid_rreg - dummy reg read function * * @adev: amdgpu device pointer * @reg: offset of register * * Dummy register read function. Used for register blocks * that certain asics don't have (all asics). * Returns the value in the register. */ static uint32_t amdgpu_invalid_rreg(struct amdgpu_device *adev, uint32_t reg) { DRM_ERROR("Invalid callback to read register 0x%04X\n", reg); BUG(); return 0; } /** * amdgpu_invalid_wreg - dummy reg write function * * @adev: amdgpu device pointer * @reg: offset of register * @v: value to write to the register * * Dummy register read function. Used for register blocks * that certain asics don't have (all asics). */ static void amdgpu_invalid_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v) { DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n", reg, v); BUG(); } /** * amdgpu_block_invalid_rreg - dummy reg read function * * @adev: amdgpu device pointer * @block: offset of instance * @reg: offset of register * * Dummy register read function. Used for register blocks * that certain asics don't have (all asics). * Returns the value in the register. */ static uint32_t amdgpu_block_invalid_rreg(struct amdgpu_device *adev, uint32_t block, uint32_t reg) { DRM_ERROR("Invalid callback to read register 0x%04X in block 0x%04X\n", reg, block); BUG(); return 0; } /** * amdgpu_block_invalid_wreg - dummy reg write function * * @adev: amdgpu device pointer * @block: offset of instance * @reg: offset of register * @v: value to write to the register * * Dummy register read function. Used for register blocks * that certain asics don't have (all asics). */ static void amdgpu_block_invalid_wreg(struct amdgpu_device *adev, uint32_t block, uint32_t reg, uint32_t v) { DRM_ERROR("Invalid block callback to write register 0x%04X in block 0x%04X with 0x%08X\n", reg, block, v); BUG(); } static int amdgpu_device_vram_scratch_init(struct amdgpu_device *adev) { return amdgpu_bo_create_kernel(adev, AMDGPU_GPU_PAGE_SIZE, PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM, &adev->vram_scratch.robj, &adev->vram_scratch.gpu_addr, (void **)&adev->vram_scratch.ptr); } static void amdgpu_device_vram_scratch_fini(struct amdgpu_device *adev) { amdgpu_bo_free_kernel(&adev->vram_scratch.robj, NULL, NULL); } /** * amdgpu_device_program_register_sequence - program an array of registers. * * @adev: amdgpu_device pointer * @registers: pointer to the register array * @array_size: size of the register array * * Programs an array or registers with and and or masks. * This is a helper for setting golden registers. */ void amdgpu_device_program_register_sequence(struct amdgpu_device *adev, const u32 *registers, const u32 array_size) { u32 tmp, reg, and_mask, or_mask; int i; if (array_size % 3) return; for (i = 0; i < array_size; i +=3) { reg = registers[i + 0]; and_mask = registers[i + 1]; or_mask = registers[i + 2]; if (and_mask == 0xffffffff) { tmp = or_mask; } else { tmp = RREG32(reg); tmp &= ~and_mask; tmp |= or_mask; } WREG32(reg, tmp); } } void amdgpu_device_pci_config_reset(struct amdgpu_device *adev) { pci_write_config_dword(adev->pdev, 0x7c, AMDGPU_ASIC_RESET_DATA); } /* * GPU doorbell aperture helpers function. */ /** * amdgpu_device_doorbell_init - Init doorbell driver information. * * @adev: amdgpu_device pointer * * Init doorbell driver information (CIK) * Returns 0 on success, error on failure. */ static int amdgpu_device_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; } if (pci_resource_flags(adev->pdev, 2) & IORESOURCE_UNSET) return -EINVAL; /* doorbell bar mapping */ adev->doorbell.base = pci_resource_start(adev->pdev, 2); adev->doorbell.size = pci_resource_len(adev->pdev, 2); adev->doorbell.num_doorbells = min_t(u32, adev->doorbell.size / sizeof(u32), AMDGPU_DOORBELL_MAX_ASSIGNMENT+1); if (adev->doorbell.num_doorbells == 0) return -EINVAL; adev->doorbell.ptr = ioremap(adev->doorbell.base, adev->doorbell.num_doorbells * sizeof(u32)); if (adev->doorbell.ptr == NULL) return -ENOMEM; return 0; } /** * amdgpu_device_doorbell_fini - Tear down doorbell driver information. * * @adev: amdgpu_device pointer * * Tear down doorbell driver information (CIK) */ static void amdgpu_device_doorbell_fini(struct amdgpu_device *adev) { iounmap(adev->doorbell.ptr); adev->doorbell.ptr = NULL; } /* * amdgpu_device_wb_*() * Writeback is the method by which the GPU updates special pages in memory * with the status of certain GPU events (fences, ring pointers,etc.). */ /** * amdgpu_device_wb_fini - Disable Writeback and free memory * * @adev: amdgpu_device pointer * * Disables Writeback and frees the Writeback memory (all asics). * Used at driver shutdown. */ static void amdgpu_device_wb_fini(struct amdgpu_device *adev) { if (adev->wb.wb_obj) { amdgpu_bo_free_kernel(&adev->wb.wb_obj, &adev->wb.gpu_addr, (void **)&adev->wb.wb); adev->wb.wb_obj = NULL; } } /** * amdgpu_device_wb_init- Init Writeback driver info and allocate memory * * @adev: amdgpu_device pointer * * Initializes writeback and allocates writeback memory (all asics). * Used at driver startup. * Returns 0 on success or an -error on failure. */ static int amdgpu_device_wb_init(struct amdgpu_device *adev) { int r; if (adev->wb.wb_obj == NULL) { /* AMDGPU_MAX_WB * sizeof(uint32_t) * 8 = AMDGPU_MAX_WB 256bit slots */ r = amdgpu_bo_create_kernel(adev, AMDGPU_MAX_WB * sizeof(uint32_t) * 8, PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT, &adev->wb.wb_obj, &adev->wb.gpu_addr, (void **)&adev->wb.wb); if (r) { dev_warn(adev->dev, "(%d) create WB bo failed\n", r); return r; } adev->wb.num_wb = AMDGPU_MAX_WB; memset(&adev->wb.used, 0, sizeof(adev->wb.used)); /* clear wb memory */ memset((char *)adev->wb.wb, 0, AMDGPU_MAX_WB * sizeof(uint32_t) * 8); } return 0; } /** * amdgpu_device_wb_get - Allocate a wb entry * * @adev: amdgpu_device pointer * @wb: wb index * * Allocate a wb slot for use by the driver (all asics). * Returns 0 on success or -EINVAL on failure. */ int amdgpu_device_wb_get(struct amdgpu_device *adev, u32 *wb) { unsigned long offset = find_first_zero_bit(adev->wb.used, adev->wb.num_wb); if (offset < adev->wb.num_wb) { __set_bit(offset, adev->wb.used); *wb = offset << 3; /* convert to dw offset */ return 0; } else { return -EINVAL; } } /** * amdgpu_device_wb_free - Free a wb entry * * @adev: amdgpu_device pointer * @wb: wb index * * Free a wb slot allocated for use by the driver (all asics) */ void amdgpu_device_wb_free(struct amdgpu_device *adev, u32 wb) { wb >>= 3; if (wb < adev->wb.num_wb) __clear_bit(wb, adev->wb.used); } /** * amdgpu_device_vram_location - try to find VRAM location * @adev: amdgpu device structure holding all necessary informations * @mc: memory controller structure holding memory informations * @base: base address at which to put VRAM * * Function will try to place VRAM at base address provided * as parameter. */ void amdgpu_device_vram_location(struct amdgpu_device *adev, struct amdgpu_mc *mc, u64 base) { uint64_t limit = (uint64_t)amdgpu_vram_limit << 20; mc->vram_start = base; mc->vram_end = mc->vram_start + mc->mc_vram_size - 1; if (limit && limit < mc->real_vram_size) mc->real_vram_size = limit; dev_info(adev->dev, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n", mc->mc_vram_size >> 20, mc->vram_start, mc->vram_end, mc->real_vram_size >> 20); } /** * amdgpu_device_gart_location - try to find GTT location * @adev: amdgpu device structure holding all necessary informations * @mc: memory controller structure holding memory informations * * Function will place try to place GTT before or after VRAM. * * If GTT size is bigger than space left then we ajust GTT size. * Thus function will never fails. * * FIXME: when reducing GTT size align new size on power of 2. */ void amdgpu_device_gart_location(struct amdgpu_device *adev, struct amdgpu_mc *mc) { u64 size_af, size_bf; size_af = adev->mc.mc_mask - mc->vram_end; size_bf = mc->vram_start; if (size_bf > size_af) { if (mc->gart_size > size_bf) { dev_warn(adev->dev, "limiting GTT\n"); mc->gart_size = size_bf; } mc->gart_start = 0; } else { if (mc->gart_size > size_af) { dev_warn(adev->dev, "limiting GTT\n"); mc->gart_size = size_af; } /* VCE doesn't like it when BOs cross a 4GB segment, so align * the GART base on a 4GB boundary as well. */ mc->gart_start = ALIGN(mc->vram_end + 1, 0x100000000ULL); } mc->gart_end = mc->gart_start + mc->gart_size - 1; dev_info(adev->dev, "GTT: %lluM 0x%016llX - 0x%016llX\n", mc->gart_size >> 20, mc->gart_start, mc->gart_end); } /** * amdgpu_device_resize_fb_bar - try to resize FB BAR * * @adev: amdgpu_device pointer * * Try to resize FB BAR to make all VRAM CPU accessible. We try very hard not * to fail, but if any of the BARs is not accessible after the size we abort * driver loading by returning -ENODEV. */ int amdgpu_device_resize_fb_bar(struct amdgpu_device *adev) { u64 space_needed = roundup_pow_of_two(adev->mc.real_vram_size); u32 rbar_size = order_base_2(((space_needed >> 20) | 1)) - 1; struct pci_bus *root; struct resource *res; unsigned i; u16 cmd; int r; /* Bypass for VF */ if (amdgpu_sriov_vf(adev)) return 0; /* Check if the root BUS has 64bit memory resources */ root = adev->pdev->bus; while (root->parent) root = root->parent; pci_bus_for_each_resource(root, res, i) { if (res && res->flags & (IORESOURCE_MEM | IORESOURCE_MEM_64) && res->start > 0x100000000ull) break; } /* Trying to resize is pointless without a root hub window above 4GB */ if (!res) return 0; /* Disable memory decoding while we change the BAR addresses and size */ pci_read_config_word(adev->pdev, PCI_COMMAND, &cmd); pci_write_config_word(adev->pdev, PCI_COMMAND, cmd & ~PCI_COMMAND_MEMORY); /* Free the VRAM and doorbell BAR, we most likely need to move both. */ amdgpu_device_doorbell_fini(adev); if (adev->asic_type >= CHIP_BONAIRE) pci_release_resource(adev->pdev, 2); pci_release_resource(adev->pdev, 0); r = pci_resize_resource(adev->pdev, 0, rbar_size); if (r == -ENOSPC) DRM_INFO("Not enough PCI address space for a large BAR."); else if (r && r != -ENOTSUPP) DRM_ERROR("Problem resizing BAR0 (%d).", r); pci_assign_unassigned_bus_resources(adev->pdev->bus); /* When the doorbell or fb BAR isn't available we have no chance of * using the device. */ r = amdgpu_device_doorbell_init(adev); if (r || (pci_resource_flags(adev->pdev, 0) & IORESOURCE_UNSET)) return -ENODEV; pci_write_config_word(adev->pdev, PCI_COMMAND, cmd); return 0; } /* * GPU helpers function. */ /** * amdgpu_device_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_device_need_post(struct amdgpu_device *adev) { uint32_t reg; if (amdgpu_sriov_vf(adev)) return false; if (amdgpu_passthrough(adev)) { /* for FIJI: In whole GPU pass-through virtualization case, after VM reboot * some old smc fw still need driver do vPost otherwise gpu hang, while * those smc fw version above 22.15 doesn't have this flaw, so we force * vpost executed for smc version below 22.15 */ if (adev->asic_type == CHIP_FIJI) { int err; uint32_t fw_ver; err = request_firmware(&adev->pm.fw, "amdgpu/fiji_smc.bin", adev->dev); /* force vPost if error occured */ if (err) return true; fw_ver = *((uint32_t *)adev->pm.fw->data + 69); if (fw_ver < 0x00160e00) return true; } } 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; } /* if we get transitioned to only one device, take VGA back */ /** * amdgpu_device_vga_set_decode - enable/disable vga decode * * @cookie: amdgpu_device pointer * @state: enable/disable vga decode * * Enable/disable vga decode (all asics). * Returns VGA resource flags. */ static unsigned int amdgpu_device_vga_set_decode(void *cookie, bool state) { struct amdgpu_device *adev = cookie; amdgpu_asic_set_vga_state(adev, state); if (state) return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM | VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM; else return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM; } static void amdgpu_device_check_block_size(struct amdgpu_device *adev) { /* defines number of bits in page table versus page directory, * a page is 4KB so we have 12 bits offset, minimum 9 bits in the * page table and the remaining bits are in the page directory */ if (amdgpu_vm_block_size == -1) return; if (amdgpu_vm_block_size < 9) { dev_warn(adev->dev, "VM page table size (%d) too small\n", amdgpu_vm_block_size); amdgpu_vm_block_size = -1; } } static void amdgpu_device_check_vm_size(struct amdgpu_device *adev) { /* no need to check the default value */ if (amdgpu_vm_size == -1) return; if (amdgpu_vm_size < 1) { dev_warn(adev->dev, "VM size (%d) too small, min is 1GB\n", amdgpu_vm_size); amdgpu_vm_size = -1; } } /** * amdgpu_device_check_arguments - validate module params * * @adev: amdgpu_device pointer * * Validates certain module parameters and updates * the associated values used by the driver (all asics). */ static void amdgpu_device_check_arguments(struct amdgpu_device *adev) { if (amdgpu_sched_jobs < 4) { dev_warn(adev->dev, "sched jobs (%d) must be at least 4\n", amdgpu_sched_jobs); amdgpu_sched_jobs = 4; } else if (!is_power_of_2(amdgpu_sched_jobs)){ dev_warn(adev->dev, "sched jobs (%d) must be a power of 2\n", amdgpu_sched_jobs); amdgpu_sched_jobs = roundup_pow_of_two(amdgpu_sched_jobs); } if (amdgpu_gart_size != -1 && amdgpu_gart_size < 32) { /* gart size must be greater or equal to 32M */ dev_warn(adev->dev, "gart size (%d) too small\n", amdgpu_gart_size); amdgpu_gart_size = -1; } if (amdgpu_gtt_size != -1 && amdgpu_gtt_size < 32) { /* gtt size must be greater or equal to 32M */ dev_warn(adev->dev, "gtt size (%d) too small\n", amdgpu_gtt_size); amdgpu_gtt_size = -1; } /* valid range is between 4 and 9 inclusive */ if (amdgpu_vm_fragment_size != -1 && (amdgpu_vm_fragment_size > 9 || amdgpu_vm_fragment_size < 4)) { dev_warn(adev->dev, "valid range is between 4 and 9\n"); amdgpu_vm_fragment_size = -1; } amdgpu_device_check_vm_size(adev); amdgpu_device_check_block_size(adev); if (amdgpu_vram_page_split != -1 && (amdgpu_vram_page_split < 16 || !is_power_of_2(amdgpu_vram_page_split))) { dev_warn(adev->dev, "invalid VRAM page split (%d)\n", amdgpu_vram_page_split); amdgpu_vram_page_split = 1024; } if (amdgpu_lockup_timeout == 0) { dev_warn(adev->dev, "lockup_timeout msut be > 0, adjusting to 10000\n"); amdgpu_lockup_timeout = 10000; } } /** * amdgpu_switcheroo_set_state - set switcheroo state * * @pdev: pci dev pointer * @state: vga_switcheroo state * * Callback for the switcheroo driver. Suspends or resumes the * the asics before or after it is powered up using ACPI methods. */ static void amdgpu_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state) { struct drm_device *dev = pci_get_drvdata(pdev); if (amdgpu_device_is_px(dev) && state == VGA_SWITCHEROO_OFF) return; if (state == VGA_SWITCHEROO_ON) { pr_info("amdgpu: switched on\n"); /* don't suspend or resume card normally */ dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; amdgpu_device_resume(dev, true, true); dev->switch_power_state = DRM_SWITCH_POWER_ON; drm_kms_helper_poll_enable(dev); } else { pr_info("amdgpu: switched off\n"); drm_kms_helper_poll_disable(dev); dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; amdgpu_device_suspend(dev, true, true); dev->switch_power_state = DRM_SWITCH_POWER_OFF; } } /** * amdgpu_switcheroo_can_switch - see if switcheroo state can change * * @pdev: pci dev pointer * * Callback for the switcheroo driver. Check of the switcheroo * state can be changed. * Returns true if the state can be changed, false if not. */ static bool amdgpu_switcheroo_can_switch(struct pci_dev *pdev) { struct drm_device *dev = pci_get_drvdata(pdev); /* * FIXME: open_count is protected by drm_global_mutex but that would lead to * locking inversion with the driver load path. And the access here is * completely racy anyway. So don't bother with locking for now. */ return dev->open_count == 0; } static const struct vga_switcheroo_client_ops amdgpu_switcheroo_ops = { .set_gpu_state = amdgpu_switcheroo_set_state, .reprobe = NULL, .can_switch = amdgpu_switcheroo_can_switch, }; int amdgpu_device_ip_set_clockgating_state(struct amdgpu_device *adev, enum amd_ip_block_type block_type, enum amd_clockgating_state state) { int i, r = 0; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) continue; if (adev->ip_blocks[i].version->type != block_type) continue; if (!adev->ip_blocks[i].version->funcs->set_clockgating_state) continue; r = adev->ip_blocks[i].version->funcs->set_clockgating_state( (void *)adev, state); if (r) DRM_ERROR("set_clockgating_state of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); } return r; } int amdgpu_device_ip_set_powergating_state(struct amdgpu_device *adev, enum amd_ip_block_type block_type, enum amd_powergating_state state) { int i, r = 0; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) continue; if (adev->ip_blocks[i].version->type != block_type) continue; if (!adev->ip_blocks[i].version->funcs->set_powergating_state) continue; r = adev->ip_blocks[i].version->funcs->set_powergating_state( (void *)adev, state); if (r) DRM_ERROR("set_powergating_state of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); } return r; } void amdgpu_device_ip_get_clockgating_state(struct amdgpu_device *adev, u32 *flags) { int i; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) continue; if (adev->ip_blocks[i].version->funcs->get_clockgating_state) adev->ip_blocks[i].version->funcs->get_clockgating_state((void *)adev, flags); } } int amdgpu_device_ip_wait_for_idle(struct amdgpu_device *adev, enum amd_ip_block_type block_type) { int i, r; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) continue; if (adev->ip_blocks[i].version->type == block_type) { r = adev->ip_blocks[i].version->funcs->wait_for_idle((void *)adev); if (r) return r; break; } } return 0; } bool amdgpu_device_ip_is_idle(struct amdgpu_device *adev, enum amd_ip_block_type block_type) { int i; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) continue; if (adev->ip_blocks[i].version->type == block_type) return adev->ip_blocks[i].version->funcs->is_idle((void *)adev); } return true; } struct amdgpu_ip_block * amdgpu_device_ip_get_ip_block(struct amdgpu_device *adev, enum amd_ip_block_type type) { int i; for (i = 0; i < adev->num_ip_blocks; i++) if (adev->ip_blocks[i].version->type == type) return &adev->ip_blocks[i]; return NULL; } /** * amdgpu_device_ip_block_version_cmp * * @adev: amdgpu_device pointer * @type: enum amd_ip_block_type * @major: major version * @minor: minor version * * return 0 if equal or greater * return 1 if smaller or the ip_block doesn't exist */ int amdgpu_device_ip_block_version_cmp(struct amdgpu_device *adev, enum amd_ip_block_type type, u32 major, u32 minor) { struct amdgpu_ip_block *ip_block = amdgpu_device_ip_get_ip_block(adev, type); if (ip_block && ((ip_block->version->major > major) || ((ip_block->version->major == major) && (ip_block->version->minor >= minor)))) return 0; return 1; } /** * amdgpu_device_ip_block_add * * @adev: amdgpu_device pointer * @ip_block_version: pointer to the IP to add * * Adds the IP block driver information to the collection of IPs * on the asic. */ int amdgpu_device_ip_block_add(struct amdgpu_device *adev, const struct amdgpu_ip_block_version *ip_block_version) { if (!ip_block_version) return -EINVAL; DRM_DEBUG("add ip block number %d <%s>\n", adev->num_ip_blocks, ip_block_version->funcs->name); adev->ip_blocks[adev->num_ip_blocks++].version = ip_block_version; return 0; } static void amdgpu_device_enable_virtual_display(struct amdgpu_device *adev) { adev->enable_virtual_display = false; if (amdgpu_virtual_display) { struct drm_device *ddev = adev->ddev; const char *pci_address_name = pci_name(ddev->pdev); char *pciaddstr, *pciaddstr_tmp, *pciaddname_tmp, *pciaddname; pciaddstr = kstrdup(amdgpu_virtual_display, GFP_KERNEL); pciaddstr_tmp = pciaddstr; while ((pciaddname_tmp = strsep(&pciaddstr_tmp, ";"))) { pciaddname = strsep(&pciaddname_tmp, ","); if (!strcmp("all", pciaddname) || !strcmp(pci_address_name, pciaddname)) { long num_crtc; int res = -1; adev->enable_virtual_display = true; if (pciaddname_tmp) res = kstrtol(pciaddname_tmp, 10, &num_crtc); if (!res) { if (num_crtc < 1) num_crtc = 1; if (num_crtc > 6) num_crtc = 6; adev->mode_info.num_crtc = num_crtc; } else { adev->mode_info.num_crtc = 1; } break; } } DRM_INFO("virtual display string:%s, %s:virtual_display:%d, num_crtc:%d\n", amdgpu_virtual_display, pci_address_name, adev->enable_virtual_display, adev->mode_info.num_crtc); kfree(pciaddstr); } } static int amdgpu_device_parse_gpu_info_fw(struct amdgpu_device *adev) { const char *chip_name; char fw_name[30]; int err; const struct gpu_info_firmware_header_v1_0 *hdr; adev->firmware.gpu_info_fw = NULL; switch (adev->asic_type) { case CHIP_TOPAZ: case CHIP_TONGA: case CHIP_FIJI: case CHIP_POLARIS11: case CHIP_POLARIS10: case CHIP_POLARIS12: case CHIP_CARRIZO: case CHIP_STONEY: #ifdef CONFIG_DRM_AMDGPU_SI case CHIP_VERDE: case CHIP_TAHITI: case CHIP_PITCAIRN: case CHIP_OLAND: case CHIP_HAINAN: #endif #ifdef CONFIG_DRM_AMDGPU_CIK case CHIP_BONAIRE: case CHIP_HAWAII: case CHIP_KAVERI: case CHIP_KABINI: case CHIP_MULLINS: #endif default: return 0; case CHIP_VEGA10: chip_name = "vega10"; break; case CHIP_RAVEN: chip_name = "raven"; break; } snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_gpu_info.bin", chip_name); err = request_firmware(&adev->firmware.gpu_info_fw, fw_name, adev->dev); if (err) { dev_err(adev->dev, "Failed to load gpu_info firmware \"%s\"\n", fw_name); goto out; } err = amdgpu_ucode_validate(adev->firmware.gpu_info_fw); if (err) { dev_err(adev->dev, "Failed to validate gpu_info firmware \"%s\"\n", fw_name); goto out; } hdr = (const struct gpu_info_firmware_header_v1_0 *)adev->firmware.gpu_info_fw->data; amdgpu_ucode_print_gpu_info_hdr(&hdr->header); switch (hdr->version_major) { case 1: { const struct gpu_info_firmware_v1_0 *gpu_info_fw = (const struct gpu_info_firmware_v1_0 *)(adev->firmware.gpu_info_fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); adev->gfx.config.max_shader_engines = le32_to_cpu(gpu_info_fw->gc_num_se); adev->gfx.config.max_cu_per_sh = le32_to_cpu(gpu_info_fw->gc_num_cu_per_sh); adev->gfx.config.max_sh_per_se = le32_to_cpu(gpu_info_fw->gc_num_sh_per_se); adev->gfx.config.max_backends_per_se = le32_to_cpu(gpu_info_fw->gc_num_rb_per_se); adev->gfx.config.max_texture_channel_caches = le32_to_cpu(gpu_info_fw->gc_num_tccs); adev->gfx.config.max_gprs = le32_to_cpu(gpu_info_fw->gc_num_gprs); adev->gfx.config.max_gs_threads = le32_to_cpu(gpu_info_fw->gc_num_max_gs_thds); adev->gfx.config.gs_vgt_table_depth = le32_to_cpu(gpu_info_fw->gc_gs_table_depth); adev->gfx.config.gs_prim_buffer_depth = le32_to_cpu(gpu_info_fw->gc_gsprim_buff_depth); adev->gfx.config.double_offchip_lds_buf = le32_to_cpu(gpu_info_fw->gc_double_offchip_lds_buffer); adev->gfx.cu_info.wave_front_size = le32_to_cpu(gpu_info_fw->gc_wave_size); adev->gfx.cu_info.max_waves_per_simd = le32_to_cpu(gpu_info_fw->gc_max_waves_per_simd); adev->gfx.cu_info.max_scratch_slots_per_cu = le32_to_cpu(gpu_info_fw->gc_max_scratch_slots_per_cu); adev->gfx.cu_info.lds_size = le32_to_cpu(gpu_info_fw->gc_lds_size); break; } default: dev_err(adev->dev, "Unsupported gpu_info table %d\n", hdr->header.ucode_version); err = -EINVAL; goto out; } out: return err; } static int amdgpu_device_ip_early_init(struct amdgpu_device *adev) { int i, r; amdgpu_device_enable_virtual_display(adev); switch (adev->asic_type) { case CHIP_TOPAZ: case CHIP_TONGA: case CHIP_FIJI: case CHIP_POLARIS11: case CHIP_POLARIS10: case CHIP_POLARIS12: case CHIP_CARRIZO: case CHIP_STONEY: if (adev->asic_type == CHIP_CARRIZO || adev->asic_type == CHIP_STONEY) adev->family = AMDGPU_FAMILY_CZ; else adev->family = AMDGPU_FAMILY_VI; r = vi_set_ip_blocks(adev); if (r) return r; break; #ifdef CONFIG_DRM_AMDGPU_SI case CHIP_VERDE: case CHIP_TAHITI: case CHIP_PITCAIRN: case CHIP_OLAND: case CHIP_HAINAN: adev->family = AMDGPU_FAMILY_SI; r = si_set_ip_blocks(adev); if (r) return r; break; #endif #ifdef CONFIG_DRM_AMDGPU_CIK case CHIP_BONAIRE: case CHIP_HAWAII: case CHIP_KAVERI: case CHIP_KABINI: case CHIP_MULLINS: if ((adev->asic_type == CHIP_BONAIRE) || (adev->asic_type == CHIP_HAWAII)) adev->family = AMDGPU_FAMILY_CI; else adev->family = AMDGPU_FAMILY_KV; r = cik_set_ip_blocks(adev); if (r) return r; break; #endif case CHIP_VEGA10: case CHIP_RAVEN: if (adev->asic_type == CHIP_RAVEN) adev->family = AMDGPU_FAMILY_RV; else adev->family = AMDGPU_FAMILY_AI; r = soc15_set_ip_blocks(adev); if (r) return r; break; default: /* FIXME: not supported yet */ return -EINVAL; } r = amdgpu_device_parse_gpu_info_fw(adev); if (r) return r; amdgpu_amdkfd_device_probe(adev); if (amdgpu_sriov_vf(adev)) { r = amdgpu_virt_request_full_gpu(adev, true); if (r) return -EAGAIN; } for (i = 0; i < adev->num_ip_blocks; i++) { if ((amdgpu_ip_block_mask & (1 << i)) == 0) { DRM_ERROR("disabled ip block: %d <%s>\n", i, adev->ip_blocks[i].version->funcs->name); adev->ip_blocks[i].status.valid = false; } else { if (adev->ip_blocks[i].version->funcs->early_init) { r = adev->ip_blocks[i].version->funcs->early_init((void *)adev); if (r == -ENOENT) { adev->ip_blocks[i].status.valid = false; } else if (r) { DRM_ERROR("early_init of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); return r; } else { adev->ip_blocks[i].status.valid = true; } } else { adev->ip_blocks[i].status.valid = true; } } } adev->cg_flags &= amdgpu_cg_mask; adev->pg_flags &= amdgpu_pg_mask; return 0; } static int amdgpu_device_ip_init(struct amdgpu_device *adev) { int i, r; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) continue; r = adev->ip_blocks[i].version->funcs->sw_init((void *)adev); if (r) { DRM_ERROR("sw_init of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); return r; } adev->ip_blocks[i].status.sw = true; /* need to do gmc hw init early so we can allocate gpu mem */ if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) { r = amdgpu_device_vram_scratch_init(adev); if (r) { DRM_ERROR("amdgpu_vram_scratch_init failed %d\n", r); return r; } r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev); if (r) { DRM_ERROR("hw_init %d failed %d\n", i, r); return r; } r = amdgpu_device_wb_init(adev); if (r) { DRM_ERROR("amdgpu_device_wb_init failed %d\n", r); return r; } adev->ip_blocks[i].status.hw = true; /* right after GMC hw init, we create CSA */ if (amdgpu_sriov_vf(adev)) { r = amdgpu_allocate_static_csa(adev); if (r) { DRM_ERROR("allocate CSA failed %d\n", r); return r; } } } } for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.sw) continue; /* gmc hw init is done early */ if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) continue; r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev); if (r) { DRM_ERROR("hw_init of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); return r; } adev->ip_blocks[i].status.hw = true; } amdgpu_amdkfd_device_init(adev); if (amdgpu_sriov_vf(adev)) amdgpu_virt_release_full_gpu(adev, true); return 0; } static void amdgpu_device_fill_reset_magic(struct amdgpu_device *adev) { memcpy(adev->reset_magic, adev->gart.ptr, AMDGPU_RESET_MAGIC_NUM); } static bool amdgpu_device_check_vram_lost(struct amdgpu_device *adev) { return !!memcmp(adev->gart.ptr, adev->reset_magic, AMDGPU_RESET_MAGIC_NUM); } static int amdgpu_device_ip_late_set_cg_state(struct amdgpu_device *adev) { int i = 0, r; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) continue; /* skip CG for VCE/UVD, it's handled specially */ if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD && adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE) { /* enable clockgating to save power */ r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev, AMD_CG_STATE_GATE); if (r) { DRM_ERROR("set_clockgating_state(gate) of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); return r; } } } return 0; } static int amdgpu_device_ip_late_init(struct amdgpu_device *adev) { int i = 0, r; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) continue; if (adev->ip_blocks[i].version->funcs->late_init) { r = adev->ip_blocks[i].version->funcs->late_init((void *)adev); if (r) { DRM_ERROR("late_init of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); return r; } adev->ip_blocks[i].status.late_initialized = true; } } mod_delayed_work(system_wq, &adev->late_init_work, msecs_to_jiffies(AMDGPU_RESUME_MS)); amdgpu_device_fill_reset_magic(adev); return 0; } static int amdgpu_device_ip_fini(struct amdgpu_device *adev) { int i, r; amdgpu_amdkfd_device_fini(adev); /* need to disable SMC first */ for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.hw) continue; if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) { /* ungate blocks before hw fini so that we can shutdown the blocks safely */ r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev, AMD_CG_STATE_UNGATE); if (r) { DRM_ERROR("set_clockgating_state(ungate) of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); return r; } r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev); /* XXX handle errors */ if (r) { DRM_DEBUG("hw_fini of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); } adev->ip_blocks[i].status.hw = false; break; } } for (i = adev->num_ip_blocks - 1; i >= 0; i--) { if (!adev->ip_blocks[i].status.hw) continue; if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD && adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE) { /* ungate blocks before hw fini so that we can shutdown the blocks safely */ r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev, AMD_CG_STATE_UNGATE); if (r) { DRM_ERROR("set_clockgating_state(ungate) of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); return r; } } r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev); /* XXX handle errors */ if (r) { DRM_DEBUG("hw_fini of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); } adev->ip_blocks[i].status.hw = false; } for (i = adev->num_ip_blocks - 1; i >= 0; i--) { if (!adev->ip_blocks[i].status.sw) continue; if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) { amdgpu_free_static_csa(adev); amdgpu_device_wb_fini(adev); amdgpu_device_vram_scratch_fini(adev); } r = adev->ip_blocks[i].version->funcs->sw_fini((void *)adev); /* XXX handle errors */ if (r) { DRM_DEBUG("sw_fini of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); } adev->ip_blocks[i].status.sw = false; adev->ip_blocks[i].status.valid = false; } for (i = adev->num_ip_blocks - 1; i >= 0; i--) { if (!adev->ip_blocks[i].status.late_initialized) continue; if (adev->ip_blocks[i].version->funcs->late_fini) adev->ip_blocks[i].version->funcs->late_fini((void *)adev); adev->ip_blocks[i].status.late_initialized = false; } if (amdgpu_sriov_vf(adev)) if (amdgpu_virt_release_full_gpu(adev, false)) DRM_ERROR("failed to release exclusive mode on fini\n"); return 0; } static void amdgpu_device_ip_late_init_func_handler(struct work_struct *work) { struct amdgpu_device *adev = container_of(work, struct amdgpu_device, late_init_work.work); amdgpu_device_ip_late_set_cg_state(adev); } int amdgpu_device_ip_suspend(struct amdgpu_device *adev) { int i, r; if (amdgpu_sriov_vf(adev)) amdgpu_virt_request_full_gpu(adev, false); /* ungate SMC block first */ r = amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_SMC, AMD_CG_STATE_UNGATE); if (r) { DRM_ERROR("set_clockgating_state(ungate) SMC failed %d\n", r); } for (i = adev->num_ip_blocks - 1; i >= 0; i--) { if (!adev->ip_blocks[i].status.valid) continue; /* ungate blocks so that suspend can properly shut them down */ if (i != AMD_IP_BLOCK_TYPE_SMC) { r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev, AMD_CG_STATE_UNGATE); if (r) { DRM_ERROR("set_clockgating_state(ungate) of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); } } /* XXX handle errors */ r = adev->ip_blocks[i].version->funcs->suspend(adev); /* XXX handle errors */ if (r) { DRM_ERROR("suspend of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); } } if (amdgpu_sriov_vf(adev)) amdgpu_virt_release_full_gpu(adev, false); return 0; } static int amdgpu_device_ip_reinit_early_sriov(struct amdgpu_device *adev) { int i, r; static enum amd_ip_block_type ip_order[] = { AMD_IP_BLOCK_TYPE_GMC, AMD_IP_BLOCK_TYPE_COMMON, AMD_IP_BLOCK_TYPE_IH, }; for (i = 0; i < ARRAY_SIZE(ip_order); i++) { int j; struct amdgpu_ip_block *block; for (j = 0; j < adev->num_ip_blocks; j++) { block = &adev->ip_blocks[j]; if (block->version->type != ip_order[i] || !block->status.valid) continue; r = block->version->funcs->hw_init(adev); DRM_INFO("RE-INIT: %s %s\n", block->version->funcs->name, r?"failed":"successed"); } } return 0; } static int amdgpu_device_ip_reinit_late_sriov(struct amdgpu_device *adev) { int i, r; 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, AMD_IP_BLOCK_TYPE_UVD, AMD_IP_BLOCK_TYPE_VCE }; for (i = 0; i < ARRAY_SIZE(ip_order); i++) { int j; struct amdgpu_ip_block *block; for (j = 0; j < adev->num_ip_blocks; j++) { block = &adev->ip_blocks[j]; if (block->version->type != ip_order[i] || !block->status.valid) continue; r = block->version->funcs->hw_init(adev); DRM_INFO("RE-INIT: %s %s\n", block->version->funcs->name, r?"failed":"successed"); } } return 0; } static int amdgpu_device_ip_resume_phase1(struct amdgpu_device *adev) { int i, r; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) continue; if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON || adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC || adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH) { r = adev->ip_blocks[i].version->funcs->resume(adev); if (r) { DRM_ERROR("resume of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); return r; } } } return 0; } static int amdgpu_device_ip_resume_phase2(struct amdgpu_device *adev) { int i, r; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) continue; if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON || adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC || adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH ) continue; r = adev->ip_blocks[i].version->funcs->resume(adev); if (r) { DRM_ERROR("resume of IP block <%s> failed %d\n", adev->ip_blocks[i].version->funcs->name, r); return r; } } return 0; } static int amdgpu_device_ip_resume(struct amdgpu_device *adev) { int r; r = amdgpu_device_ip_resume_phase1(adev); if (r) return r; r = amdgpu_device_ip_resume_phase2(adev); return r; } static void amdgpu_device_detect_sriov_bios(struct amdgpu_device *adev) { 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); } } bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type) { switch (asic_type) { #if defined(CONFIG_DRM_AMD_DC) case CHIP_BONAIRE: case CHIP_HAWAII: case CHIP_KAVERI: case CHIP_CARRIZO: case CHIP_STONEY: case CHIP_POLARIS11: case CHIP_POLARIS10: case CHIP_POLARIS12: case CHIP_TONGA: case CHIP_FIJI: #if defined(CONFIG_DRM_AMD_DC_PRE_VEGA) return amdgpu_dc != 0; #endif case CHIP_KABINI: case CHIP_MULLINS: return amdgpu_dc > 0; case CHIP_VEGA10: #if defined(CONFIG_DRM_AMD_DC_DCN1_0) case CHIP_RAVEN: #endif return amdgpu_dc != 0; #endif default: return false; } } /** * amdgpu_device_has_dc_support - check if dc is supported * * @adev: amdgpu_device_pointer * * Returns true for supported, false for not supported */ bool amdgpu_device_has_dc_support(struct amdgpu_device *adev) { if (amdgpu_sriov_vf(adev)) return false; return amdgpu_device_asic_has_dc_support(adev->asic_type); } /** * amdgpu_device_init - initialize the driver * * @adev: amdgpu_device pointer * @pdev: drm dev pointer * @pdev: pci dev pointer * @flags: driver flags * * Initializes the driver info and hw (all asics). * Returns 0 for success or an error on failure. * Called at driver startup. */ int amdgpu_device_init(struct amdgpu_device *adev, struct drm_device *ddev, struct pci_dev *pdev, uint32_t flags) { int r, i; bool runtime = false; u32 max_MBps; adev->shutdown = false; adev->dev = &pdev->dev; adev->ddev = ddev; adev->pdev = pdev; adev->flags = flags; adev->asic_type = flags & AMD_ASIC_MASK; adev->usec_timeout = AMDGPU_MAX_USEC_TIMEOUT; adev->mc.gart_size = 512 * 1024 * 1024; adev->accel_working = false; adev->num_rings = 0; adev->mman.buffer_funcs = NULL; adev->mman.buffer_funcs_ring = NULL; adev->vm_manager.vm_pte_funcs = NULL; 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; adev->pcie_rreg = &amdgpu_invalid_rreg; adev->pcie_wreg = &amdgpu_invalid_wreg; adev->pciep_rreg = &amdgpu_invalid_rreg; adev->pciep_wreg = &amdgpu_invalid_wreg; adev->uvd_ctx_rreg = &amdgpu_invalid_rreg; adev->uvd_ctx_wreg = &amdgpu_invalid_wreg; adev->didt_rreg = &amdgpu_invalid_rreg; adev->didt_wreg = &amdgpu_invalid_wreg; adev->gc_cac_rreg = &amdgpu_invalid_rreg; adev->gc_cac_wreg = &amdgpu_invalid_wreg; adev->audio_endpt_rreg = &amdgpu_block_invalid_rreg; adev->audio_endpt_wreg = &amdgpu_block_invalid_wreg; DRM_INFO("initializing kernel modesetting (%s 0x%04X:0x%04X 0x%04X:0x%04X 0x%02X).\n", amdgpu_asic_name[adev->asic_type], pdev->vendor, pdev->device, pdev->subsystem_vendor, pdev->subsystem_device, pdev->revision); /* mutex initialization are all done here so we * can recall function without having locking issues */ atomic_set(&adev->irq.ih.lock, 0); mutex_init(&adev->firmware.mutex); 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); mutex_init(&adev->lock_reset); amdgpu_device_check_arguments(adev); spin_lock_init(&adev->mmio_idx_lock); spin_lock_init(&adev->smc_idx_lock); spin_lock_init(&adev->pcie_idx_lock); spin_lock_init(&adev->uvd_ctx_idx_lock); spin_lock_init(&adev->didt_idx_lock); spin_lock_init(&adev->gc_cac_idx_lock); spin_lock_init(&adev->se_cac_idx_lock); spin_lock_init(&adev->audio_endpt_idx_lock); spin_lock_init(&adev->mm_stats.lock); INIT_LIST_HEAD(&adev->shadow_list); mutex_init(&adev->shadow_list_lock); INIT_LIST_HEAD(&adev->ring_lru_list); spin_lock_init(&adev->ring_lru_list_lock); INIT_DELAYED_WORK(&adev->late_init_work, amdgpu_device_ip_late_init_func_handler); /* Registers mapping */ /* TODO: block userspace mapping of io register */ if (adev->asic_type >= CHIP_BONAIRE) { adev->rmmio_base = pci_resource_start(adev->pdev, 5); adev->rmmio_size = pci_resource_len(adev->pdev, 5); } else { adev->rmmio_base = pci_resource_start(adev->pdev, 2); adev->rmmio_size = pci_resource_len(adev->pdev, 2); } adev->rmmio = ioremap(adev->rmmio_base, adev->rmmio_size); if (adev->rmmio == NULL) { return -ENOMEM; } DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)adev->rmmio_base); DRM_INFO("register mmio size: %u\n", (unsigned)adev->rmmio_size); /* doorbell bar mapping */ amdgpu_device_doorbell_init(adev); /* io port mapping */ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { if (pci_resource_flags(adev->pdev, i) & IORESOURCE_IO) { adev->rio_mem_size = pci_resource_len(adev->pdev, i); adev->rio_mem = pci_iomap(adev->pdev, i, adev->rio_mem_size); break; } } if (adev->rio_mem == NULL) DRM_INFO("PCI I/O BAR is not found.\n"); /* early init functions */ r = amdgpu_device_ip_early_init(adev); if (r) return r; /* if we have > 1 VGA cards, then disable the amdgpu VGA resources */ /* this will fail for cards that aren't VGA class devices, just * ignore it */ vga_client_register(adev->pdev, adev, NULL, amdgpu_device_vga_set_decode); if (amdgpu_device_is_px(ddev)) runtime = true; if (!pci_is_thunderbolt_attached(adev->pdev)) vga_switcheroo_register_client(adev->pdev, &amdgpu_switcheroo_ops, runtime); if (runtime) vga_switcheroo_init_domain_pm_ops(adev->dev, &adev->vga_pm_domain); /* Read BIOS */ if (!amdgpu_get_bios(adev)) { r = -EINVAL; goto failed; } r = amdgpu_atombios_init(adev); if (r) { dev_err(adev->dev, "amdgpu_atombios_init failed\n"); amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0); goto failed; } /* detect if we are with an SRIOV vbios */ amdgpu_device_detect_sriov_bios(adev); /* Post card if necessary */ if (amdgpu_device_need_post(adev)) { if (!adev->bios) { dev_err(adev->dev, "no vBIOS found\n"); r = -EINVAL; goto failed; } DRM_INFO("GPU posting now...\n"); r = amdgpu_atom_asic_init(adev->mode_info.atom_context); if (r) { dev_err(adev->dev, "gpu post error!\n"); goto failed; } } if (adev->is_atom_fw) { /* Initialize clocks */ r = amdgpu_atomfirmware_get_clock_info(adev); if (r) { dev_err(adev->dev, "amdgpu_atomfirmware_get_clock_info failed\n"); amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL, 0, 0); goto failed; } } else { /* Initialize clocks */ r = amdgpu_atombios_get_clock_info(adev); if (r) { dev_err(adev->dev, "amdgpu_atombios_get_clock_info failed\n"); amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL, 0, 0); goto failed; } /* init i2c buses */ if (!amdgpu_device_has_dc_support(adev)) amdgpu_atombios_i2c_init(adev); } /* Fence driver */ r = amdgpu_fence_driver_init(adev); if (r) { dev_err(adev->dev, "amdgpu_fence_driver_init failed\n"); amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_FENCE_INIT_FAIL, 0, 0); goto failed; } /* init the mode config */ drm_mode_config_init(adev->ddev); r = amdgpu_device_ip_init(adev); if (r) { /* failed in exclusive mode due to timeout */ if (amdgpu_sriov_vf(adev) && !amdgpu_sriov_runtime(adev) && amdgpu_virt_mmio_blocked(adev) && !amdgpu_virt_wait_reset(adev)) { dev_err(adev->dev, "VF exclusive mode timeout\n"); /* Don't send request since VF is inactive. */ adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME; adev->virt.ops = NULL; r = -EAGAIN; goto failed; } dev_err(adev->dev, "amdgpu_device_ip_init failed\n"); amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_AMDGPU_INIT_FAIL, 0, 0); amdgpu_device_ip_fini(adev); goto failed; } adev->accel_working = true; amdgpu_vm_check_compute_bug(adev); /* Initialize the buffer migration limit. */ if (amdgpu_moverate >= 0) max_MBps = amdgpu_moverate; else max_MBps = 8; /* Allow 8 MB/s. */ /* Get a log2 for easy divisions. */ adev->mm_stats.log2_max_MBps = ilog2(max(1u, max_MBps)); r = amdgpu_ib_pool_init(adev); if (r) { dev_err(adev->dev, "IB initialization failed (%d).\n", r); amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_IB_INIT_FAIL, 0, r); goto failed; } r = amdgpu_ib_ring_tests(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_debugfs_gem_init(adev); if (r) DRM_ERROR("registering gem debugfs failed (%d).\n", r); r = amdgpu_debugfs_regs_init(adev); if (r) DRM_ERROR("registering register debugfs failed (%d).\n", r); r = amdgpu_debugfs_firmware_init(adev); if (r) DRM_ERROR("registering firmware debugfs failed (%d).\n", r); r = amdgpu_debugfs_init(adev); if (r) DRM_ERROR("Creating debugfs files failed (%d).\n", r); if ((amdgpu_testing & 1)) { if (adev->accel_working) amdgpu_test_moves(adev); else DRM_INFO("amdgpu: acceleration disabled, skipping move tests\n"); } if (amdgpu_benchmarking) { if (adev->accel_working) amdgpu_benchmark(adev, amdgpu_benchmarking); else DRM_INFO("amdgpu: acceleration disabled, skipping benchmarks\n"); } /* enable clockgating, etc. after ib tests, etc. since some blocks require * explicit gating rather than handling it automatically. */ r = amdgpu_device_ip_late_init(adev); if (r) { dev_err(adev->dev, "amdgpu_device_ip_late_init failed\n"); amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_AMDGPU_LATE_INIT_FAIL, 0, r); goto failed; } return 0; failed: amdgpu_vf_error_trans_all(adev); if (runtime) vga_switcheroo_fini_domain_pm_ops(adev->dev); return r; } /** * amdgpu_device_fini - tear down the driver * * @adev: amdgpu_device pointer * * Tear down the driver info (all asics). * Called at driver shutdown. */ void amdgpu_device_fini(struct amdgpu_device *adev) { int r; DRM_INFO("amdgpu: finishing device.\n"); adev->shutdown = true; if (adev->mode_info.mode_config_initialized){ if (!amdgpu_device_has_dc_support(adev)) drm_crtc_force_disable_all(adev->ddev); else drm_atomic_helper_shutdown(adev->ddev); } amdgpu_ib_pool_fini(adev); amdgpu_fence_driver_fini(adev); amdgpu_fbdev_fini(adev); r = amdgpu_device_ip_fini(adev); if (adev->firmware.gpu_info_fw) { release_firmware(adev->firmware.gpu_info_fw); adev->firmware.gpu_info_fw = NULL; } adev->accel_working = false; cancel_delayed_work_sync(&adev->late_init_work); /* free i2c buses */ if (!amdgpu_device_has_dc_support(adev)) amdgpu_i2c_fini(adev); amdgpu_atombios_fini(adev); kfree(adev->bios); adev->bios = NULL; if (!pci_is_thunderbolt_attached(adev->pdev)) vga_switcheroo_unregister_client(adev->pdev); if (adev->flags & AMD_IS_PX) vga_switcheroo_fini_domain_pm_ops(adev->dev); vga_client_register(adev->pdev, NULL, NULL, NULL); if (adev->rio_mem) pci_iounmap(adev->pdev, adev->rio_mem); adev->rio_mem = NULL; iounmap(adev->rmmio); adev->rmmio = NULL; amdgpu_device_doorbell_fini(adev); amdgpu_pm_sysfs_fini(adev); amdgpu_debugfs_regs_cleanup(adev); } /* * Suspend & resume. */ /** * amdgpu_device_suspend - initiate device suspend * * @pdev: drm dev pointer * @state: suspend state * * Puts the hw in the suspend state (all asics). * Returns 0 for success or an error on failure. * Called at driver suspend. */ int amdgpu_device_suspend(struct drm_device *dev, bool suspend, bool fbcon) { struct amdgpu_device *adev; struct drm_crtc *crtc; struct drm_connector *connector; int r; if (dev == NULL || dev->dev_private == NULL) { return -ENODEV; } adev = dev->dev_private; if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) return 0; drm_kms_helper_poll_disable(dev); if (!amdgpu_device_has_dc_support(adev)) { /* turn off display hw */ drm_modeset_lock_all(dev); list_for_each_entry(connector, &dev->mode_config.connector_list, head) { drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); } drm_modeset_unlock_all(dev); } amdgpu_amdkfd_suspend(adev); /* unpin the front buffers and cursors */ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); struct amdgpu_framebuffer *rfb = to_amdgpu_framebuffer(crtc->primary->fb); struct amdgpu_bo *robj; if (amdgpu_crtc->cursor_bo) { struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo); r = amdgpu_bo_reserve(aobj, true); if (r == 0) { amdgpu_bo_unpin(aobj); amdgpu_bo_unreserve(aobj); } } if (rfb == NULL || rfb->obj == NULL) { continue; } robj = gem_to_amdgpu_bo(rfb->obj); /* don't unpin kernel fb objects */ if (!amdgpu_fbdev_robj_is_fb(adev, robj)) { r = amdgpu_bo_reserve(robj, true); if (r == 0) { amdgpu_bo_unpin(robj); amdgpu_bo_unreserve(robj); } } } /* evict vram memory */ amdgpu_bo_evict_vram(adev); amdgpu_fence_driver_suspend(adev); r = amdgpu_device_ip_suspend(adev); /* evict remaining vram memory * This second call to evict vram is to evict the gart page table * using the CPU. */ amdgpu_bo_evict_vram(adev); pci_save_state(dev->pdev); if (suspend) { /* Shut down the device */ pci_disable_device(dev->pdev); pci_set_power_state(dev->pdev, PCI_D3hot); } else { r = amdgpu_asic_reset(adev); if (r) DRM_ERROR("amdgpu asic reset failed\n"); } if (fbcon) { console_lock(); amdgpu_fbdev_set_suspend(adev, 1); console_unlock(); } return 0; } /** * amdgpu_device_resume - initiate device resume * * @pdev: drm dev pointer * * Bring the hw back to operating state (all asics). * Returns 0 for success or an error on failure. * Called at driver resume. */ int amdgpu_device_resume(struct drm_device *dev, bool resume, bool fbcon) { struct drm_connector *connector; struct amdgpu_device *adev = dev->dev_private; struct drm_crtc *crtc; int r = 0; if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) return 0; if (fbcon) console_lock(); if (resume) { pci_set_power_state(dev->pdev, PCI_D0); pci_restore_state(dev->pdev); r = pci_enable_device(dev->pdev); if (r) goto unlock; } /* post card */ if (amdgpu_device_need_post(adev)) { r = amdgpu_atom_asic_init(adev->mode_info.atom_context); if (r) DRM_ERROR("amdgpu asic init failed\n"); } r = amdgpu_device_ip_resume(adev); if (r) { DRM_ERROR("amdgpu_device_ip_resume failed (%d).\n", r); goto unlock; } amdgpu_fence_driver_resume(adev); if (resume) { r = amdgpu_ib_ring_tests(adev); if (r) DRM_ERROR("ib ring test failed (%d).\n", r); } r = amdgpu_device_ip_late_init(adev); if (r) goto unlock; /* pin cursors */ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc); if (amdgpu_crtc->cursor_bo) { struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo); r = amdgpu_bo_reserve(aobj, true); if (r == 0) { r = amdgpu_bo_pin(aobj, AMDGPU_GEM_DOMAIN_VRAM, &amdgpu_crtc->cursor_addr); if (r != 0) DRM_ERROR("Failed to pin cursor BO (%d)\n", r); amdgpu_bo_unreserve(aobj); } } } r = amdgpu_amdkfd_resume(adev); if (r) return r; /* blat the mode back in */ if (fbcon) { if (!amdgpu_device_has_dc_support(adev)) { /* pre DCE11 */ drm_helper_resume_force_mode(dev); /* turn on display hw */ drm_modeset_lock_all(dev); list_for_each_entry(connector, &dev->mode_config.connector_list, head) { drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON); } drm_modeset_unlock_all(dev); } } drm_kms_helper_poll_enable(dev); /* * Most of the connector probing functions try to acquire runtime pm * refs to ensure that the GPU is powered on when connector polling is * performed. Since we're calling this from a runtime PM callback, * trying to acquire rpm refs will cause us to deadlock. * * Since we're guaranteed to be holding the rpm lock, it's safe to * temporarily disable the rpm helpers so this doesn't deadlock us. */ #ifdef CONFIG_PM dev->dev->power.disable_depth++; #endif if (!amdgpu_device_has_dc_support(adev)) drm_helper_hpd_irq_event(dev); else drm_kms_helper_hotplug_event(dev); #ifdef CONFIG_PM dev->dev->power.disable_depth--; #endif if (fbcon) amdgpu_fbdev_set_suspend(adev, 0); unlock: if (fbcon) console_unlock(); return r; } static bool amdgpu_device_ip_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; if (adev->ip_blocks[i].version->funcs->check_soft_reset) adev->ip_blocks[i].status.hang = adev->ip_blocks[i].version->funcs->check_soft_reset(adev); if (adev->ip_blocks[i].status.hang) { DRM_INFO("IP block:%s is hung!\n", adev->ip_blocks[i].version->funcs->name);


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