/* * 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 #include #include #include #include #include #include #include #include #include #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 #include MODULE_FIRMWARE("amdgpu/vega10_gpu_info.bin"); MODULE_FIRMWARE("amdgpu/raven_gpu_info.bin"); #define AMDGPU_RESUME_MS 2000 static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev); static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev); 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)) { BUG_ON(in_interrupt()); 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 (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev)) { BUG_ON(in_interrupt()); 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); } } 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 ((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)); } } /** * 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_vram_scratch_init(struct amdgpu_device *adev) { int r; if (adev->vram_scratch.robj == NULL) { r = amdgpu_bo_create(adev, AMDGPU_GPU_PAGE_SIZE, PAGE_SIZE, true, AMDGPU_GEM_DOMAIN_VRAM, AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS, NULL, NULL, &adev->vram_scratch.robj); if (r) { return r; } } r = amdgpu_bo_reserve(adev->vram_scratch.robj, false); if (unlikely(r != 0)) return r; r = amdgpu_bo_pin(adev->vram_scratch.robj, AMDGPU_GEM_DOMAIN_VRAM, &adev->vram_scratch.gpu_addr); if (r) { amdgpu_bo_unreserve(adev->vram_scratch.robj); return r; } r = amdgpu_bo_kmap(adev->vram_scratch.robj, (void **)&adev->vram_scratch.ptr); if (r) amdgpu_bo_unpin(adev->vram_scratch.robj); amdgpu_bo_unreserve(adev->vram_scratch.robj); return r; } static void amdgpu_vram_scratch_fini(struct amdgpu_device *adev) { int r; if (adev->vram_scratch.robj == NULL) { return; } r = amdgpu_bo_reserve(adev->vram_scratch.robj, true); if (likely(r == 0)) { amdgpu_bo_kunmap(adev->vram_scratch.robj); amdgpu_bo_unpin(adev->vram_scratch.robj); amdgpu_bo_unreserve(adev->vram_scratch.robj); } amdgpu_bo_unref(&adev->vram_scratch.robj); } /** * amdgpu_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_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_pci_config_reset(struct amdgpu_device *adev) { pci_write_config_dword(adev->pdev, 0x7c, AMDGPU_ASIC_RESET_DATA); } /* * GPU doorbell aperture helpers function. */ /** * amdgpu_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_doorbell_init(struct amdgpu_device *adev) { /* 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_doorbell_fini - Tear down doorbell driver information. * * @adev: amdgpu_device pointer * * Tear down doorbell driver information (CIK) */ static void amdgpu_doorbell_fini(struct amdgpu_device *adev) { iounmap(adev->doorbell.ptr); adev->doorbell.ptr = NULL; } /** * amdgpu_doorbell_get_kfd_info - Report doorbell configuration required to * setup amdkfd * * @adev: amdgpu_device pointer * @aperture_base: output returning doorbell aperture base physical address * @aperture_size: output returning doorbell aperture size in bytes * @start_offset: output returning # of doorbell bytes reserved for amdgpu. * * amdgpu and amdkfd share the doorbell aperture. amdgpu sets it up, * takes doorbells required for its own rings and reports the setup to amdkfd. * amdgpu reserved doorbells are at the start of the doorbell aperture. */ void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev, phys_addr_t *aperture_base, size_t *aperture_size, size_t *start_offset) { /* * The first num_doorbells are used by amdgpu. * amdkfd takes whatever's left in the aperture. */ if (adev->doorbell.size > adev->doorbell.num_doorbells * sizeof(u32)) { *aperture_base = adev->doorbell.base; *aperture_size = adev->doorbell.size; *start_offset = adev->doorbell.num_doorbells * sizeof(u32); } else { *aperture_base = 0; *aperture_size = 0; *start_offset = 0; } } /* * amdgpu_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_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_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_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_wb_init(struct amdgpu_device *adev) { int r; if (adev->wb.wb_obj == NULL) { r = amdgpu_bo_create_kernel(adev, AMDGPU_MAX_WB * sizeof(uint32_t), 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)); } return 0; } /** * amdgpu_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_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; return 0; } else { return -EINVAL; } } /** * amdgpu_wb_get_64bit - 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_wb_get_64bit(struct amdgpu_device *adev, u32 *wb) { unsigned long offset = bitmap_find_next_zero_area_off(adev->wb.used, adev->wb.num_wb, 0, 2, 7, 0); if ((offset + 1) < adev->wb.num_wb) { __set_bit(offset, adev->wb.used); __set_bit(offset + 1, adev->wb.used); *wb = offset; return 0; } else { return -EINVAL; } } /** * amdgpu_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_wb_free(struct amdgpu_device *adev, u32 wb) { if (wb < adev->wb.num_wb) __clear_bit(wb, adev->wb.used); } /** * amdgpu_wb_free_64bit - 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_wb_free_64bit(struct amdgpu_device *adev, u32 wb) { if ((wb + 1) < adev->wb.num_wb) { __clear_bit(wb, adev->wb.used); __clear_bit(wb + 1, adev->wb.used); } } /** * amdgpu_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 (which is so far either PCI aperture address or * for IGP TOM base address). * * If there is not enough space to fit the unvisible VRAM in the 32bits * address space then we limit the VRAM size to the aperture. * * Note: We don't explicitly enforce VRAM start to be aligned on VRAM size, * this shouldn't be a problem as we are using the PCI aperture as a reference. * Otherwise this would be needed for rv280, all r3xx, and all r4xx, but * not IGP. * * Note: we use mc_vram_size as on some board we need to program the mc to * cover the whole aperture even if VRAM size is inferior to aperture size * Novell bug 204882 + along with lots of ubuntu ones * * Note: when limiting vram it's safe to overwritte real_vram_size because * we are not in case where real_vram_size is inferior to mc_vram_size (ie * note afected by bogus hw of Novell bug 204882 + along with lots of ubuntu * ones) * * Note: IGP TOM addr should be the same as the aperture addr, we don't * explicitly check for that though. * * FIXME: when reducing VRAM size align new size on power of 2. */ void amdgpu_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; if (mc->mc_vram_size > (adev->mc.mc_mask - base + 1)) { dev_warn(adev->dev, "limiting VRAM to PCI aperture size\n"); mc->real_vram_size = mc->aper_size; mc->mc_vram_size = mc->aper_size; } 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_gtt_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_gtt_location(struct amdgpu_device *adev, struct amdgpu_mc *mc) { u64 size_af, size_bf; size_af = ((adev->mc.mc_mask - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align; size_bf = mc->vram_start & ~mc->gtt_base_align; if (size_bf > size_af) { if (mc->gtt_size > size_bf) { dev_warn(adev->dev, "limiting GTT\n"); mc->gtt_size = size_bf; } mc->gtt_start = 0; } else { if (mc->gtt_size > size_af) { dev_warn(adev->dev, "limiting GTT\n"); mc->gtt_size = size_af; } mc->gtt_start = (mc->vram_end + 1 + mc->gtt_base_align) & ~mc->gtt_base_align; } mc->gtt_end = mc->gtt_start + mc->gtt_size - 1; dev_info(adev->dev, "GTT: %lluM 0x%016llX - 0x%016llX\n", mc->gtt_size >> 20, mc->gtt_start, mc->gtt_end); } /* * GPU helpers function. */ /** * amdgpu_need_post - check if the hw need post or not * * @adev: amdgpu_device pointer * * Check if the asic has been initialized (all asics) at driver startup * or post is needed if hw reset is performed. * Returns true if need or false if not. */ bool amdgpu_need_post(struct amdgpu_device *adev) { uint32_t reg; if (adev->has_hw_reset) { adev->has_hw_reset = false; return true; } /* then check MEM_SIZE, in case the crtcs are off */ reg = amdgpu_asic_get_config_memsize(adev); if ((reg != 0) && (reg != 0xffffffff)) return false; return true; } static bool amdgpu_vpost_needed(struct amdgpu_device *adev) { 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; } } return amdgpu_need_post(adev); } /** * amdgpu_dummy_page_init - init dummy page used by the driver * * @adev: amdgpu_device pointer * * Allocate the dummy page used by the driver (all asics). * This dummy page is used by the driver as a filler for gart entries * when pages are taken out of the GART * Returns 0 on sucess, -ENOMEM on failure. */ int amdgpu_dummy_page_init(struct amdgpu_device *adev) { if (adev->dummy_page.page) return 0; adev->dummy_page.page = alloc_page(GFP_DMA32 | GFP_KERNEL | __GFP_ZERO); if (adev->dummy_page.page == NULL) return -ENOMEM; adev->dummy_page.addr = pci_map_page(adev->pdev, adev->dummy_page.page, 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); if (pci_dma_mapping_error(adev->pdev, adev->dummy_page.addr)) { dev_err(&adev->pdev->dev, "Failed to DMA MAP the dummy page\n"); __free_page(adev->dummy_page.page); adev->dummy_page.page = NULL; return -ENOMEM; } return 0; } /** * amdgpu_dummy_page_fini - free dummy page used by the driver * * @adev: amdgpu_device pointer * * Frees the dummy page used by the driver (all asics). */ void amdgpu_dummy_page_fini(struct amdgpu_device *adev) { if (adev->dummy_page.page == NULL) return; pci_unmap_page(adev->pdev, adev->dummy_page.addr, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); __free_page(adev->dummy_page.page); adev->dummy_page.page = NULL; } /* ATOM accessor methods */ /* * ATOM is an interpreted byte code stored in tables in the vbios. The * driver registers callbacks to access registers and the interpreter * in the driver parses the tables and executes then to program specific * actions (set display modes, asic init, etc.). See amdgpu_atombios.c, * atombios.h, and atom.c */ /** * cail_pll_read - read PLL register * * @info: atom card_info pointer * @reg: PLL register offset * * Provides a PLL register accessor for the atom interpreter (r4xx+). * Returns the value of the PLL register. */ static uint32_t cail_pll_read(struct card_info *info, uint32_t reg) { return 0; } /** * cail_pll_write - write PLL register * * @info: atom card_info pointer * @reg: PLL register offset * @val: value to write to the pll register * * Provides a PLL register accessor for the atom interpreter (r4xx+). */ static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val) { } /** * cail_mc_read - read MC (Memory Controller) register * * @info: atom card_info pointer * @reg: MC register offset * * Provides an MC register accessor for the atom interpreter (r4xx+). * Returns the value of the MC register. */ static uint32_t cail_mc_read(struct card_info *info, uint32_t reg) { return 0; } /** * cail_mc_write - write MC (Memory Controller) register * * @info: atom card_info pointer * @reg: MC register offset * @val: value to write to the pll register * * Provides a MC register accessor for the atom interpreter (r4xx+). */ static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val) { } /** * cail_reg_write - write MMIO register * * @info: atom card_info pointer * @reg: MMIO register offset * @val: value to write to the pll register * * Provides a MMIO register accessor for the atom interpreter (r4xx+). */ static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val) { struct amdgpu_device *adev = info->dev->dev_private; WREG32(reg, val); } /** * cail_reg_read - read MMIO register * * @info: atom card_info pointer * @reg: MMIO register offset * * Provides an MMIO register accessor for the atom interpreter (r4xx+). * Returns the value of the MMIO register. */ static uint32_t cail_reg_read(struct card_info *info, uint32_t reg) { struct amdgpu_device *adev = info->dev->dev_private; uint32_t r; r = RREG32(reg); return r; } /** * cail_ioreg_write - write IO register * * @info: atom card_info pointer * @reg: IO register offset * @val: value to write to the pll register * * Provides a IO register accessor for the atom interpreter (r4xx+). */ static void cail_ioreg_write(struct card_info *info, uint32_t reg, uint32_t val) { struct amdgpu_device *adev = info->dev->dev_private; WREG32_IO(reg, val); } /** * cail_ioreg_read - read IO register * * @info: atom card_info pointer * @reg: IO register offset * * Provides an IO register accessor for the atom interpreter (r4xx+). * Returns the value of the IO register. */ static uint32_t cail_ioreg_read(struct card_info *info, uint32_t reg) { struct amdgpu_device *adev = info->dev->dev_private; uint32_t r; r = RREG32_IO(reg); return r; } /** * amdgpu_atombios_fini - free the driver info and callbacks for atombios * * @adev: amdgpu_device pointer * * Frees the driver info and register access callbacks for the ATOM * interpreter (r4xx+). * Called at driver shutdown. */ static void amdgpu_atombios_fini(struct amdgpu_device *adev) { if (adev->mode_info.atom_context) { kfree(adev->mode_info.atom_context->scratch); kfree(adev->mode_info.atom_context->iio); } kfree(adev->mode_info.atom_context); adev->mode_info.atom_context = NULL; kfree(adev->mode_info.atom_card_info); adev->mode_info.atom_card_info = NULL; } /** * amdgpu_atombios_init - init the driver info and callbacks for atombios * * @adev: amdgpu_device pointer * * Initializes the driver info and register access callbacks for the * ATOM interpreter (r4xx+). * Returns 0 on sucess, -ENOMEM on failure. * Called at driver startup. */ static int amdgpu_atombios_init(struct amdgpu_device *adev) { struct card_info *atom_card_info = kzalloc(sizeof(struct card_info), GFP_KERNEL); if (!atom_card_info) return -ENOMEM; adev->mode_info.atom_card_info = atom_card_info; atom_card_info->dev = adev->ddev; atom_card_info->reg_read = cail_reg_read; atom_card_info->reg_write = cail_reg_write; /* needed for iio ops */ if (adev->rio_mem) { atom_card_info->ioreg_read = cail_ioreg_read; atom_card_info->ioreg_write = cail_ioreg_write; } else { DRM_INFO("PCI I/O BAR is not found. Using MMIO to access ATOM BIOS\n"); atom_card_info->ioreg_read = cail_reg_read; atom_card_info->ioreg_write = cail_reg_write; } atom_card_info->mc_read = cail_mc_read; atom_card_info->mc_write = cail_mc_write; atom_card_info->pll_read = cail_pll_read; atom_card_info->pll_write = cail_pll_write; adev->mode_info.atom_context = amdgpu_atom_parse(atom_card_info, adev->bios); if (!adev->mode_info.atom_context) { amdgpu_atombios_fini(adev); return -ENOMEM; } mutex_init(&adev->mode_info.atom_context->mutex); if (adev->is_atom_fw) { amdgpu_atomfirmware_scratch_regs_init(adev); amdgpu_atomfirmware_allocate_fb_scratch(adev); } else { amdgpu_atombios_scratch_regs_init(adev); amdgpu_atombios_allocate_fb_scratch(adev); } return 0; } /* if we get transitioned to only one device, take VGA back */ /** * amdgpu_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_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; } /** * amdgpu_check_pot_argument - check that argument is a power of two * * @arg: value to check * * Validates that a certain argument is a power of two (all asics). * Returns true if argument is valid. */ static bool amdgpu_check_pot_argument(int arg) { return (arg & (arg - 1)) == 0; } static void amdgpu_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); goto def_value; } if (amdgpu_vm_block_size > 24 || (amdgpu_vm_size * 1024) < (1ull << amdgpu_vm_block_size)) { dev_warn(adev->dev, "VM page table size (%d) too large\n", amdgpu_vm_block_size); goto def_value; } return; def_value: amdgpu_vm_block_size = -1; } static void amdgpu_check_vm_size(struct amdgpu_device *adev) { if (!amdgpu_check_pot_argument(amdgpu_vm_size)) { dev_warn(adev->dev, "VM size (%d) must be a power of 2\n", amdgpu_vm_size); goto def_value; } if (amdgpu_vm_size < 1) { dev_warn(adev->dev, "VM size (%d) too small, min is 1GB\n", amdgpu_vm_size); goto def_value; } /* * Max GPUVM size for Cayman, SI, CI VI are 40 bits. */ if (amdgpu_vm_size > 1024) { dev_warn(adev->dev, "VM size (%d) too large, max is 1TB\n", amdgpu_vm_size); goto def_value; } return; def_value: amdgpu_vm_size = -1; } /** * amdgpu_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_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 (!amdgpu_check_pot_argument(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) { /* gtt size must be greater or equal to 32M */ if (amdgpu_gart_size < 32) { dev_warn(adev->dev, "gart size (%d) too small\n", amdgpu_gart_size); amdgpu_gart_size = -1; } } amdgpu_check_vm_size(adev); amdgpu_check_block_size(adev); if (amdgpu_vram_page_split != -1 && (amdgpu_vram_page_split < 16 || !amdgpu_check_pot_argument(amdgpu_vram_page_split))) { dev_warn(adev->dev, "invalid VRAM page split (%d)\n", amdgpu_vram_page_split); amdgpu_vram_page_split = 1024; } } /** * 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) { unsigned d3_delay = dev->pdev->d3_delay; 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->pdev->d3_delay = d3_delay; 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_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_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_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_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_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_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_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_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_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_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_ip_block_add(struct amdgpu_device *adev, const struct amdgpu_ip_block_version *ip_block_version) { if (!ip_block_version) return -EINVAL; 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 struct firmware *fw; const char *chip_name; char fw_name[30]; int err; const struct gpu_info_firmware_header_v1_0 *hdr; 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(&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(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 *)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 *)(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); break; } default: dev_err(adev->dev, "Unsupported gpu_info table %d\n", hdr->header.ucode_version); err = -EINVAL; goto out; } out: release_firmware(fw); fw = NULL; return err; } static int amdgpu_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; if (amdgpu_sriov_vf(adev)) { r = amdgpu_virt_request_full_gpu(adev, true); if (r) return r; } for (i = 0; i < adev->num_ip_blocks; i++) { if ((amdgpu_ip_block_mask & (1 << i)) == 0) { DRM_ERROR("disabled ip block: %d\n", i); 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_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_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_wb_init(adev); if (r) { DRM_ERROR("amdgpu_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; } return 0; } static void amdgpu_fill_reset_magic(struct amdgpu_device *adev) { memcpy(adev->reset_magic, adev->gart.ptr, AMDGPU_RESET_MAGIC_NUM); } static bool amdgpu_check_vram_lost(struct amdgpu_device *adev) { return !!memcmp(adev->gart.ptr, adev->reset_magic, AMDGPU_RESET_MAGIC_NUM); } static int amdgpu_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_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_fill_reset_magic(adev); return 0; } static int amdgpu_fini(struct amdgpu_device *adev) { int i, r; /* 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_GMC) { amdgpu_wb_fini(adev); amdgpu_vram_scratch_fini(adev); } 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; 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)) { amdgpu_bo_free_kernel(&adev->virt.csa_obj, &adev->virt.csa_vmid0_addr, NULL); amdgpu_virt_release_full_gpu(adev, false); } return 0; } static void amdgpu_late_init_func_handler(struct work_struct *work) { struct amdgpu_device *adev = container_of(work, struct amdgpu_device, late_init_work.work); amdgpu_late_set_cg_state(adev); } int amdgpu_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_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_sriov_reinit_early(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_GFXHUB, AMD_IP_BLOCK_TYPE_MMHUB, 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_sriov_reinit_late(struct amdgpu_device *adev) { int i, r; static enum amd_ip_block_type ip_order[] = { AMD_IP_BLOCK_TYPE_SMC, AMD_IP_BLOCK_TYPE_DCE, AMD_IP_BLOCK_TYPE_GFX, AMD_IP_BLOCK_TYPE_SDMA, 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_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_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_resume(struct amdgpu_device *adev) { int r; r = amdgpu_resume_phase1(adev); if (r) return r; r = amdgpu_resume_phase2(adev); return r; } static void amdgpu_device_detect_sriov_bios(struct amdgpu_device *adev) { if (adev->is_atom_fw) { if (amdgpu_atomfirmware_gpu_supports_virtualization(adev)) adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS; } else { if (amdgpu_atombios_has_gpu_virtualization_table(adev)) adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS; } } /** * 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.gtt_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); 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->grbm_idx_mutex); mutex_init(&adev->mn_lock); hash_init(adev->mn_hash); amdgpu_check_arguments(adev); /* Registers mapping */ /* TODO: block userspace mapping of io register */ 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->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->gtt_list); spin_lock_init(&adev->gtt_list_lock); INIT_DELAYED_WORK(&adev->late_init_work, amdgpu_late_init_func_handler); 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); if (adev->asic_type >= CHIP_BONAIRE) /* doorbell bar mapping */ amdgpu_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_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_vga_set_decode); if (amdgpu_runtime_pm == 1) runtime = true; 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"); goto failed; } /* detect if we are with an SRIOV vbios */ amdgpu_device_detect_sriov_bios(adev); /* Post card if necessary */ if (amdgpu_vpost_needed(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; } } else { DRM_INFO("GPU post is not needed\n"); } if (!adev->is_atom_fw) { /* Initialize clocks */ r = amdgpu_atombios_get_clock_info(adev); if (r) { dev_err(adev->dev, "amdgpu_atombios_get_clock_info failed\n"); return r; } /* init i2c buses */ 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"); goto failed; } /* init the mode config */ drm_mode_config_init(adev->ddev); r = amdgpu_init(adev); if (r) { dev_err(adev->dev, "amdgpu_init failed\n"); amdgpu_fini(adev); goto failed; } adev->accel_working = true; /* 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); goto failed; } r = amdgpu_ib_ring_tests(adev); if (r) DRM_ERROR("ib ring test failed (%d).\n", r); amdgpu_fbdev_init(adev); r = amdgpu_gem_debugfs_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); 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_late_init(adev); if (r) { dev_err(adev->dev, "amdgpu_late_init failed\n"); goto failed; } return 0; failed: 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) drm_crtc_force_disable_all(adev->ddev); /* evict vram memory */ amdgpu_bo_evict_vram(adev); amdgpu_ib_pool_fini(adev); amdgpu_fence_driver_fini(adev); amdgpu_fbdev_fini(adev); r = amdgpu_fini(adev); adev->accel_working = false; cancel_delayed_work_sync(&adev->late_init_work); /* free i2c buses */ 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; if (adev->asic_type >= CHIP_BONAIRE) amdgpu_doorbell_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); /* 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); /* 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_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); if (adev->is_atom_fw) amdgpu_atomfirmware_scratch_regs_save(adev); else amdgpu_atombios_scratch_regs_save(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; } if (adev->is_atom_fw) amdgpu_atomfirmware_scratch_regs_restore(adev); else amdgpu_atombios_scratch_regs_restore(adev); /* post card */ if (amdgpu_need_post(adev)) { r = amdgpu_atom_asic_init(adev->mode_info.atom_context); if (r) DRM_ERROR("amdgpu asic init failed\n"); } r = amdgpu_resume(adev); if (r) { DRM_ERROR("amdgpu_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_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); } } } /* blat the mode back in */ if (fbcon) { 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 drm_helper_hpd_irq_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_check_soft_reset(struct amdgpu_device *adev) { int i; bool asic_hang = false; 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); asic_hang = true; } } return asic_hang; } static int amdgpu_pre_soft_reset(struct amdgpu_device *adev) { 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].status.hang && adev->ip_blocks[i].version->funcs->pre_soft_reset) { r = adev->ip_blocks[i].version->funcs->pre_soft_reset(adev); if (r) return r; } } return 0; } static bool amdgpu_need_full_reset(struct amdgpu_device *adev) { 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 == AMD_IP_BLOCK_TYPE_GMC) || (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) || (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_ACP) || (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE)) { if (adev->ip_blocks[i].status.hang) { DRM_INFO("Some block need full reset!\n"); return true; } } } return false; } static int amdgpu_soft_reset(struct amdgpu_device *adev) { 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].status.hang && adev->ip_blocks[i].version->funcs->soft_reset) { r = adev->ip_blocks[i].version->funcs->soft_reset(adev); if (r) return r; } } return 0; } static int amdgpu_post_soft_reset(struct amdgpu_device *adev) { 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].status.hang && adev->ip_blocks[i].version->funcs->post_soft_reset) r = adev->ip_blocks[i].version->funcs->post_soft_reset(adev); if (r) return r; } return 0; } bool amdgpu_need_backup(struct amdgpu_device *adev) { if (adev->flags & AMD_IS_APU) return false; return amdgpu_lockup_timeout > 0 ? true : false; } static int amdgpu_recover_vram_from_shadow(struct amdgpu_device *adev, struct amdgpu_ring *ring, struct amdgpu_bo *bo, struct dma_fence **fence) { uint32_t domain; int r; if (!bo->shadow) return 0; r = amdgpu_bo_reserve(bo, true); if (r) return r; domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type); /* if bo has been evicted, then no need to recover */ if (domain == AMDGPU_GEM_DOMAIN_VRAM) { r = amdgpu_bo_validate(bo->shadow); if (r) { DRM_ERROR("bo validate failed!\n"); goto err; } r = amdgpu_ttm_bind(&bo->shadow->tbo, &bo->shadow->tbo.mem); if (r) { DRM_ERROR("%p bind failed\n", bo->shadow); goto err; } r = amdgpu_bo_restore_from_shadow(adev, ring, bo, NULL, fence, true); if (r) { DRM_ERROR("recover page table failed!\n"); goto err; } } err: amdgpu_bo_unreserve(bo); return r; } /** * amdgpu_sriov_gpu_reset - reset the asic * * @adev: amdgpu device pointer * @job: which job trigger hang * * Attempt the reset the GPU if it has hung (all asics). * for SRIOV case. * Returns 0 for success or an error on failure. */ int amdgpu_sriov_gpu_reset(struct amdgpu_device *adev, struct amdgpu_job *job) { int i, j, r = 0; int resched; struct amdgpu_bo *bo, *tmp; struct amdgpu_ring *ring; struct dma_fence *fence = NULL, *next = NULL; mutex_lock(&adev->virt.lock_reset); atomic_inc(&adev->gpu_reset_counter); adev->gfx.in_reset = true; /* block TTM */ resched = ttm_bo_lock_delayed_workqueue(&adev->mman.bdev); /* we start from the ring trigger GPU hang */ j = job ? job->ring->idx : 0; /* block scheduler */ for (i = j; i < j + AMDGPU_MAX_RINGS; ++i) { ring = adev->rings[i % AMDGPU_MAX_RINGS]; if (!ring || !ring->sched.thread) continue; kthread_park(ring->sched.thread); if (job && j != i) continue; /* here give the last chance to check if job removed from mirror-list * since we already pay some time on kthread_park */ if (job && list_empty(&job->base.node)) { kthread_unpark(ring->sched.thread); goto give_up_reset; } if (amd_sched_invalidate_job(&job->base, amdgpu_job_hang_limit)) amd_sched_job_kickout(&job->base); /* only do job_reset on the hang ring if @job not NULL */ amd_sched_hw_job_reset(&ring->sched); /* after all hw jobs are reset, hw fence is meaningless, so force_completion */ amdgpu_fence_driver_force_completion_ring(ring); } /* request to take full control of GPU before re-initialization */ if (job) amdgpu_virt_reset_gpu(adev); else amdgpu_virt_request_full_gpu(adev, true); /* Resume IP prior to SMC */ amdgpu_sriov_reinit_early(adev); /* we need recover gart prior to run SMC/CP/SDMA resume */ amdgpu_ttm_recover_gart(adev); /* now we are okay to resume SMC/CP/SDMA */ amdgpu_sriov_reinit_late(adev); amdgpu_irq_gpu_reset_resume_helper(adev); if (amdgpu_ib_ring_tests(adev)) dev_err(adev->dev, "[GPU_RESET] ib ring test failed (%d).\n", r); /* release full control of GPU after ib test */ amdgpu_virt_release_full_gpu(adev, true); DRM_INFO("recover vram bo from shadow\n"); ring = adev->mman.buffer_funcs_ring; mutex_lock(&adev->shadow_list_lock); list_for_each_entry_safe(bo, tmp, &adev->shadow_list, shadow_list) { next = NULL; amdgpu_recover_vram_from_shadow(adev, ring, bo, &next); if (fence) { r = dma_fence_wait(fence, false); if (r) { WARN(r, "recovery from shadow isn't completed\n"); break; } } dma_fence_put(fence); fence = next; } mutex_unlock(&adev->shadow_list_lock); if (fence) { r = dma_fence_wait(fence, false); if (r) WARN(r, "recovery from shadow isn't completed\n"); } dma_fence_put(fence); for (i = j; i < j + AMDGPU_MAX_RINGS; ++i) { ring = adev->rings[i % AMDGPU_MAX_RINGS]; if (!ring || !ring->sched.thread) continue; if (job && j != i) { kthread_unpark(ring->sched.thread); continue; } amd_sched_job_recovery(&ring->sched); kthread_unpark(ring->sched.thread); } drm_helper_resume_force_mode(adev->ddev); give_up_reset: ttm_bo_unlock_delayed_workqueue(&adev->mman.bdev, resched); if (r) { /* bad news, how to tell it to userspace ? */ dev_info(adev->dev, "GPU reset failed\n"); } else { dev_info(adev->dev, "GPU reset successed!\n"); } adev->gfx.in_reset = false; mutex_unlock(&adev->virt.lock_reset); return r; } /** * amdgpu_gpu_reset - reset the asic * * @adev: amdgpu device pointer * * Attempt the reset the GPU if it has hung (all asics). * Returns 0 for success or an error on failure. */ int amdgpu_gpu_reset(struct amdgpu_device *adev) { int i, r; int resched; bool need_full_reset, vram_lost = false; if (!amdgpu_check_soft_reset(adev)) { DRM_INFO("No hardware hang detected. Did some blocks stall?\n"); return 0; } atomic_inc(&adev->gpu_reset_counter); /* block TTM */ resched = ttm_bo_lock_delayed_workqueue(&adev->mman.bdev); /* block scheduler */ for (i = 0; i < AMDGPU_MAX_RINGS; ++i) { struct amdgpu_ring *ring = adev->rings[i]; if (!ring || !ring->sched.thread) continue; kthread_park(ring->sched.thread); amd_sched_hw_job_reset(&ring->sched); } /* after all hw jobs are reset, hw fence is meaningless, so force_completion */ amdgpu_fence_driver_force_completion(adev); need_full_reset = amdgpu_need_full_reset(adev); if (!need_full_reset) { amdgpu_pre_soft_reset(adev); r = amdgpu_soft_reset(adev); amdgpu_post_soft_reset(adev); if (r || amdgpu_check_soft_reset(adev)) { DRM_INFO("soft reset failed, will fallback to full reset!\n"); need_full_reset = true; } } if (need_full_reset) { r = amdgpu_suspend(adev); retry: /* Disable fb access */ if (adev->mode_info.num_crtc) { struct amdgpu_mode_mc_save save; amdgpu_display_stop_mc_access(adev, &save); amdgpu_wait_for_idle(adev, AMD_IP_BLOCK_TYPE_GMC); } if (adev->is_atom_fw) amdgpu_atomfirmware_scratch_regs_save(adev); else amdgpu_atombios_scratch_regs_save(adev); r = amdgpu_asic_reset(adev); if (adev->is_atom_fw) amdgpu_atomfirmware_scratch_regs_restore(adev); else amdgpu_atombios_scratch_regs_restore(adev); /* post card */ amdgpu_atom_asic_init(adev->mode_info.atom_context); if (!r) { dev_info(adev->dev, "GPU reset succeeded, trying to resume\n"); r = amdgpu_resume_phase1(adev); if (r) goto out; vram_lost = amdgpu_check_vram_lost(adev); if (vram_lost) { DRM_ERROR("VRAM is lost!\n"); atomic_inc(&adev->vram_lost_counter); } r = amdgpu_ttm_recover_gart(adev); if (r) goto out; r = amdgpu_resume_phase2(adev); if (r) goto out; if (vram_lost) amdgpu_fill_reset_magic(adev); } } out: if (!r) { amdgpu_irq_gpu_reset_resume_helper(adev); r = amdgpu_ib_ring_tests(adev); if (r) { dev_err(adev->dev, "ib ring test failed (%d).\n", r); r = amdgpu_suspend(adev); need_full_reset = true; goto retry; } /** * recovery vm page tables, since we cannot depend on VRAM is * consistent after gpu full reset. */ if (need_full_reset && amdgpu_need_backup(adev)) { struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; struct amdgpu_bo *bo, *tmp; struct dma_fence *fence = NULL, *next = NULL; DRM_INFO("recover vram bo from shadow\n"); mutex_lock(&adev->shadow_list_lock); list_for_each_entry_safe(bo, tmp, &adev->shadow_list, shadow_list) { next = NULL; amdgpu_recover_vram_from_shadow(adev, ring, bo, &next); if (fence) { r = dma_fence_wait(fence, false); if (r) { WARN(r, "recovery from shadow isn't completed\n"); break; } } dma_fence_put(fence); fence = next; } mutex_unlock(&adev->shadow_list_lock); if (fence) { r = dma_fence_wait(fence, false); if (r) WARN(r, "recovery from shadow isn't completed\n"); } dma_fence_put(fence); } for (i = 0; i < AMDGPU_MAX_RINGS; ++i) { struct amdgpu_ring *ring = adev->rings[i]; if (!ring || !ring->sched.thread) continue; amd_sched_job_recovery(&ring->sched); kthread_unpark(ring->sched.thread); } } else { dev_err(adev->dev, "asic resume failed (%d).\n", r); for (i = 0; i < AMDGPU_MAX_RINGS; ++i) { if (adev->rings[i] && adev->rings[i]->sched.thread) { kthread_unpark(adev->rings[i]->sched.thread); } } } drm_helper_resume_force_mode(adev->ddev); ttm_bo_unlock_delayed_workqueue(&adev->mman.bdev, resched); if (r) /* bad news, how to tell it to userspace ? */ dev_info(adev->dev, "GPU reset failed\n"); else dev_info(adev->dev, "GPU reset successed!\n"); return r; } void amdgpu_get_pcie_info(struct amdgpu_device *adev) { u32 mask; int ret; if (amdgpu_pcie_gen_cap) adev->pm.pcie_gen_mask = amdgpu_pcie_gen_cap; if (amdgpu_pcie_lane_cap) adev->pm.pcie_mlw_mask = amdgpu_pcie_lane_cap; /* covers APUs as well */ if (pci_is_root_bus(adev->pdev->bus)) { if (adev->pm.pcie_gen_mask == 0) adev->pm.pcie_gen_mask = AMDGPU_DEFAULT_PCIE_GEN_MASK; if (adev->pm.pcie_mlw_mask == 0) adev->pm.pcie_mlw_mask = AMDGPU_DEFAULT_PCIE_MLW_MASK; return; } if (adev->pm.pcie_gen_mask == 0) { ret = drm_pcie_get_speed_cap_mask(adev->ddev, &mask); if (!ret) { adev->pm.pcie_gen_mask = (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 | CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 | CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3); if (mask & DRM_PCIE_SPEED_25) adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1; if (mask & DRM_PCIE_SPEED_50) adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2; if (mask & DRM_PCIE_SPEED_80) adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3; } else { adev->pm.pcie_gen_mask = AMDGPU_DEFAULT_PCIE_GEN_MASK; } } if (adev->pm.pcie_mlw_mask == 0) { ret = drm_pcie_get_max_link_width(adev->ddev, &mask); if (!ret) { switch (mask) { case 32: adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X32 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X1); break; case 16: adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X1); break; case 12: adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X1); break; case 8: adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X1); break; case 4: adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X1); break; case 2: adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 | CAIL_PCIE_LINK_WIDTH_SUPPORT_X1); break; case 1: adev->pm.pcie_mlw_mask = CAIL_PCIE_LINK_WIDTH_SUPPORT_X1; break; default: break; } } else { adev->pm.pcie_mlw_mask = AMDGPU_DEFAULT_PCIE_MLW_MASK; } } } /* * Debugfs */ int amdgpu_debugfs_add_files(struct amdgpu_device *adev, const struct drm_info_list *files, unsigned nfiles) { unsigned i; for (i = 0; i < adev->debugfs_count; i++) { if (adev->debugfs[i].files == files) { /* Already registered */ return 0; } } i = adev->debugfs_count + 1; if (i > AMDGPU_DEBUGFS_MAX_COMPONENTS) { DRM_ERROR("Reached maximum number of debugfs components.\n"); DRM_ERROR("Report so we increase " "AMDGPU_DEBUGFS_MAX_COMPONENTS.\n"); return -EINVAL; } adev->debugfs[adev->debugfs_count].files = files; adev->debugfs[adev->debugfs_count].num_files = nfiles; adev->debugfs_count = i; #if defined(CONFIG_DEBUG_FS) drm_debugfs_create_files(files, nfiles, adev->ddev->primary->debugfs_root, adev->ddev->primary); #endif return 0; } #if defined(CONFIG_DEBUG_FS) static ssize_t amdgpu_debugfs_regs_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = file_inode(f)->i_private; ssize_t result = 0; int r; bool pm_pg_lock, use_bank; unsigned instance_bank, sh_bank, se_bank; if (size & 0x3 || *pos & 0x3) return -EINVAL; /* are we reading registers for which a PG lock is necessary? */ pm_pg_lock = (*pos >> 23) & 1; if (*pos & (1ULL << 62)) { se_bank = (*pos >> 24) & 0x3FF; sh_bank = (*pos >> 34) & 0x3FF; instance_bank = (*pos >> 44) & 0x3FF; if (se_bank == 0x3FF) se_bank = 0xFFFFFFFF; if (sh_bank == 0x3FF) sh_bank = 0xFFFFFFFF; if (instance_bank == 0x3FF) instance_bank = 0xFFFFFFFF; use_bank = 1; } else { use_bank = 0; } *pos &= (1UL << 22) - 1; if (use_bank) { if ((sh_bank != 0xFFFFFFFF && sh_bank >= adev->gfx.config.max_sh_per_se) || (se_bank != 0xFFFFFFFF && se_bank >= adev->gfx.config.max_shader_engines)) return -EINVAL; mutex_lock(&adev->grbm_idx_mutex); amdgpu_gfx_select_se_sh(adev, se_bank, sh_bank, instance_bank); } if (pm_pg_lock) mutex_lock(&adev->pm.mutex); while (size) { uint32_t value; if (*pos > adev->rmmio_size) goto end; value = RREG32(*pos >> 2); r = put_user(value, (uint32_t *)buf); if (r) { result = r; goto end; } result += 4; buf += 4; *pos += 4; size -= 4; } end: if (use_bank) { amdgpu_gfx_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff); mutex_unlock(&adev->grbm_idx_mutex); } if (pm_pg_lock) mutex_unlock(&adev->pm.mutex); return result; } static ssize_t amdgpu_debugfs_regs_write(struct file *f, const char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = file_inode(f)->i_private; ssize_t result = 0; int r; bool pm_pg_lock, use_bank; unsigned instance_bank, sh_bank, se_bank; if (size & 0x3 || *pos & 0x3) return -EINVAL; /* are we reading registers for which a PG lock is necessary? */ pm_pg_lock = (*pos >> 23) & 1; if (*pos & (1ULL << 62)) { se_bank = (*pos >> 24) & 0x3FF; sh_bank = (*pos >> 34) & 0x3FF; instance_bank = (*pos >> 44) & 0x3FF; if (se_bank == 0x3FF) se_bank = 0xFFFFFFFF; if (sh_bank == 0x3FF) sh_bank = 0xFFFFFFFF; if (instance_bank == 0x3FF) instance_bank = 0xFFFFFFFF; use_bank = 1; } else { use_bank = 0; } *pos &= (1UL << 22) - 1; if (use_bank) { if ((sh_bank != 0xFFFFFFFF && sh_bank >= adev->gfx.config.max_sh_per_se) || (se_bank != 0xFFFFFFFF && se_bank >= adev->gfx.config.max_shader_engines)) return -EINVAL; mutex_lock(&adev->grbm_idx_mutex); amdgpu_gfx_select_se_sh(adev, se_bank, sh_bank, instance_bank); } if (pm_pg_lock) mutex_lock(&adev->pm.mutex); while (size) { uint32_t value; if (*pos > adev->rmmio_size) return result; r = get_user(value, (uint32_t *)buf); if (r) return r; WREG32(*pos >> 2, value); result += 4; buf += 4; *pos += 4; size -= 4; } if (use_bank) { amdgpu_gfx_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff); mutex_unlock(&adev->grbm_idx_mutex); } if (pm_pg_lock) mutex_unlock(&adev->pm.mutex); return result; } static ssize_t amdgpu_debugfs_regs_pcie_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = file_inode(f)->i_private; ssize_t result = 0; int r; if (size & 0x3 || *pos & 0x3) return -EINVAL; while (size) { uint32_t value; value = RREG32_PCIE(*pos >> 2); r = put_user(value, (uint32_t *)buf); if (r) return r; result += 4; buf += 4; *pos += 4; size -= 4; } return result; } static ssize_t amdgpu_debugfs_regs_pcie_write(struct file *f, const char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = file_inode(f)->i_private; ssize_t result = 0; int r; if (size & 0x3 || *pos & 0x3) return -EINVAL; while (size) { uint32_t value; r = get_user(value, (uint32_t *)buf); if (r) return r; WREG32_PCIE(*pos >> 2, value); result += 4; buf += 4; *pos += 4; size -= 4; } return result; } static ssize_t amdgpu_debugfs_regs_didt_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = file_inode(f)->i_private; ssize_t result = 0; int r; if (size & 0x3 || *pos & 0x3) return -EINVAL; while (size) { uint32_t value; value = RREG32_DIDT(*pos >> 2); r = put_user(value, (uint32_t *)buf); if (r) return r; result += 4; buf += 4; *pos += 4; size -= 4; } return result; } static ssize_t amdgpu_debugfs_regs_didt_write(struct file *f, const char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = file_inode(f)->i_private; ssize_t result = 0; int r; if (size & 0x3 || *pos & 0x3) return -EINVAL; while (size) { uint32_t value; r = get_user(value, (uint32_t *)buf); if (r) return r; WREG32_DIDT(*pos >> 2, value); result += 4; buf += 4; *pos += 4; size -= 4; } return result; } static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = file_inode(f)->i_private; ssize_t result = 0; int r; if (size & 0x3 || *pos & 0x3) return -EINVAL; while (size) { uint32_t value; value = RREG32_SMC(*pos); r = put_user(value, (uint32_t *)buf); if (r) return r; result += 4; buf += 4; *pos += 4; size -= 4; } return result; } static ssize_t amdgpu_debugfs_regs_smc_write(struct file *f, const char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = file_inode(f)->i_private; ssize_t result = 0; int r; if (size & 0x3 || *pos & 0x3) return -EINVAL; while (size) { uint32_t value; r = get_user(value, (uint32_t *)buf); if (r) return r; WREG32_SMC(*pos, value); result += 4; buf += 4; *pos += 4; size -= 4; } return result; } static ssize_t amdgpu_debugfs_gca_config_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = file_inode(f)->i_private; ssize_t result = 0; int r; uint32_t *config, no_regs = 0; if (size & 0x3 || *pos & 0x3) return -EINVAL; config = kmalloc_array(256, sizeof(*config), GFP_KERNEL); if (!config) return -ENOMEM; /* version, increment each time something is added */ config[no_regs++] = 3; config[no_regs++] = adev->gfx.config.max_shader_engines; config[no_regs++] = adev->gfx.config.max_tile_pipes; config[no_regs++] = adev->gfx.config.max_cu_per_sh; config[no_regs++] = adev->gfx.config.max_sh_per_se; config[no_regs++] = adev->gfx.config.max_backends_per_se; config[no_regs++] = adev->gfx.config.max_texture_channel_caches; config[no_regs++] = adev->gfx.config.max_gprs; config[no_regs++] = adev->gfx.config.max_gs_threads; config[no_regs++] = adev->gfx.config.max_hw_contexts; config[no_regs++] = adev->gfx.config.sc_prim_fifo_size_frontend; config[no_regs++] = adev->gfx.config.sc_prim_fifo_size_backend; config[no_regs++] = adev->gfx.config.sc_hiz_tile_fifo_size; config[no_regs++] = adev->gfx.config.sc_earlyz_tile_fifo_size; config[no_regs++] = adev->gfx.config.num_tile_pipes; config[no_regs++] = adev->gfx.config.backend_enable_mask; config[no_regs++] = adev->gfx.config.mem_max_burst_length_bytes; config[no_regs++] = adev->gfx.config.mem_row_size_in_kb; config[no_regs++] = adev->gfx.config.shader_engine_tile_size; config[no_regs++] = adev->gfx.config.num_gpus; config[no_regs++] = adev->gfx.config.multi_gpu_tile_size; config[no_regs++] = adev->gfx.config.mc_arb_ramcfg; config[no_regs++] = adev->gfx.config.gb_addr_config; config[no_regs++] = adev->gfx.config.num_rbs; /* rev==1 */ config[no_regs++] = adev->rev_id; config[no_regs++] = adev->pg_flags; config[no_regs++] = adev->cg_flags; /* rev==2 */ config[no_regs++] = adev->family; config[no_regs++] = adev->external_rev_id; /* rev==3 */ config[no_regs++] = adev->pdev->device; config[no_regs++] = adev->pdev->revision; config[no_regs++] = adev->pdev->subsystem_device; config[no_regs++] = adev->pdev->subsystem_vendor; while (size && (*pos < no_regs * 4)) { uint32_t value; value = config[*pos >> 2]; r = put_user(value, (uint32_t *)buf); if (r) { kfree(config); return r; } result += 4; buf += 4; *pos += 4; size -= 4; } kfree(config); return result; } static ssize_t amdgpu_debugfs_sensor_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = file_inode(f)->i_private; int idx, x, outsize, r, valuesize; uint32_t values[16]; if (size & 3 || *pos & 0x3) return -EINVAL; if (amdgpu_dpm == 0) return -EINVAL; /* convert offset to sensor number */ idx = *pos >> 2; valuesize = sizeof(values); if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->read_sensor) r = adev->powerplay.pp_funcs->read_sensor(adev->powerplay.pp_handle, idx, &values[0], &valuesize); else if (adev->pm.funcs && adev->pm.funcs->read_sensor) r = adev->pm.funcs->read_sensor(adev, idx, &values[0], &valuesize); else return -EINVAL; if (size > valuesize) return -EINVAL; outsize = 0; x = 0; if (!r) { while (size) { r = put_user(values[x++], (int32_t *)buf); buf += 4; size -= 4; outsize += 4; } } return !r ? outsize : r; } static ssize_t amdgpu_debugfs_wave_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = f->f_inode->i_private; int r, x; ssize_t result=0; uint32_t offset, se, sh, cu, wave, simd, data[32]; if (size & 3 || *pos & 3) return -EINVAL; /* decode offset */ offset = (*pos & 0x7F); se = ((*pos >> 7) & 0xFF); sh = ((*pos >> 15) & 0xFF); cu = ((*pos >> 23) & 0xFF); wave = ((*pos >> 31) & 0xFF); simd = ((*pos >> 37) & 0xFF); /* switch to the specific se/sh/cu */ mutex_lock(&adev->grbm_idx_mutex); amdgpu_gfx_select_se_sh(adev, se, sh, cu); x = 0; if (adev->gfx.funcs->read_wave_data) adev->gfx.funcs->read_wave_data(adev, simd, wave, data, &x); amdgpu_gfx_select_se_sh(adev, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF); mutex_unlock(&adev->grbm_idx_mutex); if (!x) return -EINVAL; while (size && (offset < x * 4)) { uint32_t value; value = data[offset >> 2]; r = put_user(value, (uint32_t *)buf); if (r) return r; result += 4; buf += 4; offset += 4; size -= 4; } return result; } static ssize_t amdgpu_debugfs_gpr_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { struct amdgpu_device *adev = f->f_inode->i_private; int r; ssize_t result = 0; uint32_t offset, se, sh, cu, wave, simd, thread, bank, *data; if (size & 3 || *pos & 3) return -EINVAL; /* decode offset */ offset = (*pos & 0xFFF); /* in dwords */ se = ((*pos >> 12) & 0xFF); sh = ((*pos >> 20) & 0xFF); cu = ((*pos >> 28) & 0xFF); wave = ((*pos >> 36) & 0xFF); simd = ((*pos >> 44) & 0xFF); thread = ((*pos >> 52) & 0xFF); bank = ((*pos >> 60) & 1); data = kmalloc_array(1024, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; /* switch to the specific se/sh/cu */ mutex_lock(&adev->grbm_idx_mutex); amdgpu_gfx_select_se_sh(adev, se, sh, cu); if (bank == 0) { if (adev->gfx.funcs->read_wave_vgprs) adev->gfx.funcs->read_wave_vgprs(adev, simd, wave, thread, offset, size>>2, data); } else { if (adev->gfx.funcs->read_wave_sgprs) adev->gfx.funcs->read_wave_sgprs(adev, simd, wave, offset, size>>2, data); } amdgpu_gfx_select_se_sh(adev, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF); mutex_unlock(&adev->grbm_idx_mutex); while (size) { uint32_t value; value = data[offset++]; r = put_user(value, (uint32_t *)buf); if (r) { result = r; goto err; } result += 4; buf += 4; size -= 4; } err: kfree(data); return result; } static const struct file_operations amdgpu_debugfs_regs_fops = { .owner = THIS_MODULE, .read = amdgpu_debugfs_regs_read, .write = amdgpu_debugfs_regs_write, .llseek = default_llseek }; static const struct file_operations amdgpu_debugfs_regs_didt_fops = { .owner = THIS_MODULE, .read = amdgpu_debugfs_regs_didt_read, .write = amdgpu_debugfs_regs_didt_write, .llseek = default_llseek }; static const struct file_operations amdgpu_debugfs_regs_pcie_fops = { .owner = THIS_MODULE, .read = amdgpu_debugfs_regs_pcie_read, .write = amdgpu_debugfs_regs_pcie_write, .llseek = default_llseek }; static const struct file_operations amdgpu_debugfs_regs_smc_fops = { .owner = THIS_MODULE, .read = amdgpu_debugfs_regs_smc_read, .write = amdgpu_debugfs_regs_smc_write, .llseek = default_llseek }; static const struct file_operations amdgpu_debugfs_gca_config_fops = { .owner = THIS_MODULE, .read = amdgpu_debugfs_gca_config_read, .llseek = default_llseek }; static const struct file_operations amdgpu_debugfs_sensors_fops = { .owner = THIS_MODULE, .read = amdgpu_debugfs_sensor_read, .llseek = default_llseek }; static const struct file_operations amdgpu_debugfs_wave_fops = { .owner = THIS_MODULE, .read = amdgpu_debugfs_wave_read, .llseek = default_llseek }; static const struct file_operations amdgpu_debugfs_gpr_fops = { .owner = THIS_MODULE, .read = amdgpu_debugfs_gpr_read, .llseek = default_llseek }; static const struct file_operations *debugfs_regs[] = { &amdgpu_debugfs_regs_fops, &amdgpu_debugfs_regs_didt_fops, &amdgpu_debugfs_regs_pcie_fops, &amdgpu_debugfs_regs_smc_fops, &amdgpu_debugfs_gca_config_fops, &amdgpu_debugfs_sensors_fops, &amdgpu_debugfs_wave_fops, &amdgpu_debugfs_gpr_fops, }; static const char *debugfs_regs_names[] = { "amdgpu_regs", "amdgpu_regs_didt", "amdgpu_regs_pcie", "amdgpu_regs_smc", "amdgpu_gca_config", "amdgpu_sensors", "amdgpu_wave", "amdgpu_gpr", }; static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev) { struct drm_minor *minor = adev->ddev->primary; struct dentry *ent, *root = minor->debugfs_root; unsigned i, j; for (i = 0; i < ARRAY_SIZE(debugfs_regs); i++) { ent = debugfs_create_file(debugfs_regs_names[i], S_IFREG | S_IRUGO, root, adev, debugfs_regs[i]); if (IS_ERR(ent)) { for (j = 0; j < i; j++) { debugfs_remove(adev->debugfs_regs[i]); adev->debugfs_regs[i] = NULL; } return PTR_ERR(ent); } if (!i) i_size_write(ent->d_inode, adev->rmmio_size); adev->debugfs_regs[i] = ent; } return 0; } static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev) { unsigned i; for (i = 0; i < ARRAY_SIZE(debugfs_regs); i++) { if (adev->debugfs_regs[i]) { debugfs_remove(adev->debugfs_regs[i]); adev->debugfs_regs[i] = NULL; } } } int amdgpu_debugfs_init(struct drm_minor *minor) { return 0; } #else static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev) { return 0; } static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev) { } #endif