diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 1071 |
1 files changed, 1071 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c new file mode 100644 index 000000000000..b13c8aaec078 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c @@ -0,0 +1,1071 @@ + +/* + * Copyright 2014 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + */ +#include <linux/firmware.h> +#include "drmP.h" +#include "amdgpu.h" +#include "gmc_v6_0.h" +#include "amdgpu_ucode.h" +#include "si/sid.h" + +static void gmc_v6_0_set_gart_funcs(struct amdgpu_device *adev); +static void gmc_v6_0_set_irq_funcs(struct amdgpu_device *adev); +static int gmc_v6_0_wait_for_idle(void *handle); + +MODULE_FIRMWARE("radeon/tahiti_mc.bin"); +MODULE_FIRMWARE("radeon/pitcairn_mc.bin"); +MODULE_FIRMWARE("radeon/verde_mc.bin"); +MODULE_FIRMWARE("radeon/oland_mc.bin"); + +static const u32 crtc_offsets[6] = +{ + SI_CRTC0_REGISTER_OFFSET, + SI_CRTC1_REGISTER_OFFSET, + SI_CRTC2_REGISTER_OFFSET, + SI_CRTC3_REGISTER_OFFSET, + SI_CRTC4_REGISTER_OFFSET, + SI_CRTC5_REGISTER_OFFSET +}; + +static void gmc_v6_0_mc_stop(struct amdgpu_device *adev, + struct amdgpu_mode_mc_save *save) +{ + u32 blackout; + + if (adev->mode_info.num_crtc) + amdgpu_display_stop_mc_access(adev, save); + + gmc_v6_0_wait_for_idle((void *)adev); + + blackout = RREG32(MC_SHARED_BLACKOUT_CNTL); + if (REG_GET_FIELD(blackout, mmMC_SHARED_BLACKOUT_CNTL, xxBLACKOUT_MODE) != 1) { + /* Block CPU access */ + WREG32(BIF_FB_EN, 0); + /* blackout the MC */ + blackout = REG_SET_FIELD(blackout, + mmMC_SHARED_BLACKOUT_CNTL, xxBLACKOUT_MODE, 0); + WREG32(MC_SHARED_BLACKOUT_CNTL, blackout | 1); + } + /* wait for the MC to settle */ + udelay(100); + +} + +static void gmc_v6_0_mc_resume(struct amdgpu_device *adev, + struct amdgpu_mode_mc_save *save) +{ + u32 tmp; + + /* unblackout the MC */ + tmp = RREG32(MC_SHARED_BLACKOUT_CNTL); + tmp = REG_SET_FIELD(tmp, mmMC_SHARED_BLACKOUT_CNTL, xxBLACKOUT_MODE, 0); + WREG32(MC_SHARED_BLACKOUT_CNTL, tmp); + /* allow CPU access */ + tmp = REG_SET_FIELD(0, mmBIF_FB_EN, xxFB_READ_EN, 1); + tmp = REG_SET_FIELD(tmp, mmBIF_FB_EN, xxFB_WRITE_EN, 1); + WREG32(BIF_FB_EN, tmp); + + if (adev->mode_info.num_crtc) + amdgpu_display_resume_mc_access(adev, save); + +} + +static int gmc_v6_0_init_microcode(struct amdgpu_device *adev) +{ + const char *chip_name; + char fw_name[30]; + int err; + + DRM_DEBUG("\n"); + + switch (adev->asic_type) { + case CHIP_TAHITI: + chip_name = "tahiti"; + break; + case CHIP_PITCAIRN: + chip_name = "pitcairn"; + break; + case CHIP_VERDE: + chip_name = "verde"; + break; + case CHIP_OLAND: + chip_name = "oland"; + break; + case CHIP_HAINAN: + chip_name = "hainan"; + break; + default: BUG(); + } + + snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name); + err = request_firmware(&adev->mc.fw, fw_name, adev->dev); + if (err) + goto out; + + err = amdgpu_ucode_validate(adev->mc.fw); + +out: + if (err) { + dev_err(adev->dev, + "si_mc: Failed to load firmware \"%s\"\n", + fw_name); + release_firmware(adev->mc.fw); + adev->mc.fw = NULL; + } + return err; +} + +static int gmc_v6_0_mc_load_microcode(struct amdgpu_device *adev) +{ + const __le32 *new_fw_data = NULL; + u32 running; + const __le32 *new_io_mc_regs = NULL; + int i, regs_size, ucode_size; + const struct mc_firmware_header_v1_0 *hdr; + + if (!adev->mc.fw) + return -EINVAL; + + hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data; + + amdgpu_ucode_print_mc_hdr(&hdr->header); + + adev->mc.fw_version = le32_to_cpu(hdr->header.ucode_version); + regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2); + new_io_mc_regs = (const __le32 *) + (adev->mc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes)); + ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; + new_fw_data = (const __le32 *) + (adev->mc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); + + running = RREG32(MC_SEQ_SUP_CNTL) & RUN_MASK; + + if (running == 0) { + + /* reset the engine and set to writable */ + WREG32(MC_SEQ_SUP_CNTL, 0x00000008); + WREG32(MC_SEQ_SUP_CNTL, 0x00000010); + + /* load mc io regs */ + for (i = 0; i < regs_size; i++) { + WREG32(MC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(new_io_mc_regs++)); + WREG32(MC_SEQ_IO_DEBUG_DATA, le32_to_cpup(new_io_mc_regs++)); + } + /* load the MC ucode */ + for (i = 0; i < ucode_size; i++) { + WREG32(MC_SEQ_SUP_PGM, le32_to_cpup(new_fw_data++)); + } + + /* put the engine back into the active state */ + WREG32(MC_SEQ_SUP_CNTL, 0x00000008); + WREG32(MC_SEQ_SUP_CNTL, 0x00000004); + WREG32(MC_SEQ_SUP_CNTL, 0x00000001); + + /* wait for training to complete */ + for (i = 0; i < adev->usec_timeout; i++) { + if (RREG32(MC_SEQ_TRAIN_WAKEUP_CNTL) & TRAIN_DONE_D0) + break; + udelay(1); + } + for (i = 0; i < adev->usec_timeout; i++) { + if (RREG32(MC_SEQ_TRAIN_WAKEUP_CNTL) & TRAIN_DONE_D1) + break; + udelay(1); + } + + } + + return 0; +} + +static void gmc_v6_0_vram_gtt_location(struct amdgpu_device *adev, + struct amdgpu_mc *mc) +{ + if (mc->mc_vram_size > 0xFFC0000000ULL) { + dev_warn(adev->dev, "limiting VRAM\n"); + mc->real_vram_size = 0xFFC0000000ULL; + mc->mc_vram_size = 0xFFC0000000ULL; + } + amdgpu_vram_location(adev, &adev->mc, 0); + adev->mc.gtt_base_align = 0; + amdgpu_gtt_location(adev, mc); +} + +static void gmc_v6_0_mc_program(struct amdgpu_device *adev) +{ + struct amdgpu_mode_mc_save save; + u32 tmp; + int i, j; + + /* Initialize HDP */ + for (i = 0, j = 0; i < 32; i++, j += 0x6) { + WREG32((0xb05 + j), 0x00000000); + WREG32((0xb06 + j), 0x00000000); + WREG32((0xb07 + j), 0x00000000); + WREG32((0xb08 + j), 0x00000000); + WREG32((0xb09 + j), 0x00000000); + } + WREG32(HDP_REG_COHERENCY_FLUSH_CNTL, 0); + + gmc_v6_0_mc_stop(adev, &save); + + if (gmc_v6_0_wait_for_idle((void *)adev)) { + dev_warn(adev->dev, "Wait for MC idle timedout !\n"); + } + + WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE); + /* Update configuration */ + WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR, + adev->mc.vram_start >> 12); + WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR, + adev->mc.vram_end >> 12); + WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, + adev->vram_scratch.gpu_addr >> 12); + tmp = ((adev->mc.vram_end >> 24) & 0xFFFF) << 16; + tmp |= ((adev->mc.vram_start >> 24) & 0xFFFF); + WREG32(MC_VM_FB_LOCATION, tmp); + /* XXX double check these! */ + WREG32(HDP_NONSURFACE_BASE, (adev->mc.vram_start >> 8)); + WREG32(HDP_NONSURFACE_INFO, (2 << 7) | (1 << 30)); + WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF); + WREG32(MC_VM_AGP_BASE, 0); + WREG32(MC_VM_AGP_TOP, 0x0FFFFFFF); + WREG32(MC_VM_AGP_BOT, 0x0FFFFFFF); + + if (gmc_v6_0_wait_for_idle((void *)adev)) { + dev_warn(adev->dev, "Wait for MC idle timedout !\n"); + } + gmc_v6_0_mc_resume(adev, &save); + amdgpu_display_set_vga_render_state(adev, false); +} + +static int gmc_v6_0_mc_init(struct amdgpu_device *adev) +{ + + u32 tmp; + int chansize, numchan; + + tmp = RREG32(MC_ARB_RAMCFG); + if (tmp & CHANSIZE_OVERRIDE) { + chansize = 16; + } else if (tmp & CHANSIZE_MASK) { + chansize = 64; + } else { + chansize = 32; + } + tmp = RREG32(MC_SHARED_CHMAP); + switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) { + case 0: + default: + numchan = 1; + break; + case 1: + numchan = 2; + break; + case 2: + numchan = 4; + break; + case 3: + numchan = 8; + break; + case 4: + numchan = 3; + break; + case 5: + numchan = 6; + break; + case 6: + numchan = 10; + break; + case 7: + numchan = 12; + break; + case 8: + numchan = 16; + break; + } + adev->mc.vram_width = numchan * chansize; + /* Could aper size report 0 ? */ + adev->mc.aper_base = pci_resource_start(adev->pdev, 0); + adev->mc.aper_size = pci_resource_len(adev->pdev, 0); + /* size in MB on si */ + adev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024ULL * 1024ULL; + adev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024ULL * 1024ULL; + adev->mc.visible_vram_size = adev->mc.aper_size; + + /* unless the user had overridden it, set the gart + * size equal to the 1024 or vram, whichever is larger. + */ + if (amdgpu_gart_size == -1) + adev->mc.gtt_size = amdgpu_ttm_get_gtt_mem_size(adev); + else + adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20; + + gmc_v6_0_vram_gtt_location(adev, &adev->mc); + + return 0; +} + +static void gmc_v6_0_gart_flush_gpu_tlb(struct amdgpu_device *adev, + uint32_t vmid) +{ + WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0); + + WREG32(VM_INVALIDATE_REQUEST, 1 << vmid); +} + +static int gmc_v6_0_gart_set_pte_pde(struct amdgpu_device *adev, + void *cpu_pt_addr, + uint32_t gpu_page_idx, + uint64_t addr, + uint32_t flags) +{ + void __iomem *ptr = (void *)cpu_pt_addr; + uint64_t value; + + value = addr & 0xFFFFFFFFFFFFF000ULL; + value |= flags; + writeq(value, ptr + (gpu_page_idx * 8)); + + return 0; +} + +static void gmc_v6_0_set_fault_enable_default(struct amdgpu_device *adev, + bool value) +{ + u32 tmp; + + tmp = RREG32(VM_CONTEXT1_CNTL); + tmp = REG_SET_FIELD(tmp, mmVM_CONTEXT1_CNTL, + xxRANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); + tmp = REG_SET_FIELD(tmp, mmVM_CONTEXT1_CNTL, + xxDUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); + tmp = REG_SET_FIELD(tmp, mmVM_CONTEXT1_CNTL, + xxPDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value); + tmp = REG_SET_FIELD(tmp, mmVM_CONTEXT1_CNTL, + xxVALID_PROTECTION_FAULT_ENABLE_DEFAULT, value); + tmp = REG_SET_FIELD(tmp, mmVM_CONTEXT1_CNTL, + xxREAD_PROTECTION_FAULT_ENABLE_DEFAULT, value); + tmp = REG_SET_FIELD(tmp, mmVM_CONTEXT1_CNTL, + xxWRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value); + WREG32(VM_CONTEXT1_CNTL, tmp); +} + +static int gmc_v6_0_gart_enable(struct amdgpu_device *adev) +{ + int r, i; + + if (adev->gart.robj == NULL) { + dev_err(adev->dev, "No VRAM object for PCIE GART.\n"); + return -EINVAL; + } + r = amdgpu_gart_table_vram_pin(adev); + if (r) + return r; + /* Setup TLB control */ + WREG32(MC_VM_MX_L1_TLB_CNTL, + (0xA << 7) | + ENABLE_L1_TLB | + ENABLE_L1_FRAGMENT_PROCESSING | + SYSTEM_ACCESS_MODE_NOT_IN_SYS | + ENABLE_ADVANCED_DRIVER_MODEL | + SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU); + /* Setup L2 cache */ + WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | + ENABLE_L2_FRAGMENT_PROCESSING | + ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE | + ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE | + EFFECTIVE_L2_QUEUE_SIZE(7) | + CONTEXT1_IDENTITY_ACCESS_MODE(1)); + WREG32(VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS | INVALIDATE_L2_CACHE); + WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY | + BANK_SELECT(4) | + L2_CACHE_BIGK_FRAGMENT_SIZE(4)); + /* setup context0 */ + WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->mc.gtt_start >> 12); + WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->mc.gtt_end >> 12); + WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12); + WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR, + (u32)(adev->dummy_page.addr >> 12)); + WREG32(VM_CONTEXT0_CNTL2, 0); + WREG32(VM_CONTEXT0_CNTL, (ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) | + RANGE_PROTECTION_FAULT_ENABLE_DEFAULT)); + + WREG32(0x575, 0); + WREG32(0x576, 0); + WREG32(0x577, 0); + + /* empty context1-15 */ + /* set vm size, must be a multiple of 4 */ + WREG32(VM_CONTEXT1_PAGE_TABLE_START_ADDR, 0); + WREG32(VM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1); + /* Assign the pt base to something valid for now; the pts used for + * the VMs are determined by the application and setup and assigned + * on the fly in the vm part of radeon_gart.c + */ + for (i = 1; i < 16; i++) { + if (i < 8) + WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i, + adev->gart.table_addr >> 12); + else + WREG32(VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8, + adev->gart.table_addr >> 12); + } + + /* enable context1-15 */ + WREG32(VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR, + (u32)(adev->dummy_page.addr >> 12)); + WREG32(VM_CONTEXT1_CNTL2, 4); + WREG32(VM_CONTEXT1_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(1) | + PAGE_TABLE_BLOCK_SIZE(amdgpu_vm_block_size - 9) | + RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT | + RANGE_PROTECTION_FAULT_ENABLE_DEFAULT | + DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT | + DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT | + PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT | + PDE0_PROTECTION_FAULT_ENABLE_DEFAULT | + VALID_PROTECTION_FAULT_ENABLE_INTERRUPT | + VALID_PROTECTION_FAULT_ENABLE_DEFAULT | + READ_PROTECTION_FAULT_ENABLE_INTERRUPT | + READ_PROTECTION_FAULT_ENABLE_DEFAULT | + WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT | + WRITE_PROTECTION_FAULT_ENABLE_DEFAULT); + + gmc_v6_0_gart_flush_gpu_tlb(adev, 0); + dev_info(adev->dev, "PCIE GART of %uM enabled (table at 0x%016llX).\n", + (unsigned)(adev->mc.gtt_size >> 20), + (unsigned long long)adev->gart.table_addr); + adev->gart.ready = true; + return 0; +} + +static int gmc_v6_0_gart_init(struct amdgpu_device *adev) +{ + int r; + + if (adev->gart.robj) { + dev_warn(adev->dev, "gmc_v6_0 PCIE GART already initialized\n"); + return 0; + } + r = amdgpu_gart_init(adev); + if (r) + return r; + adev->gart.table_size = adev->gart.num_gpu_pages * 8; + return amdgpu_gart_table_vram_alloc(adev); +} + +static void gmc_v6_0_gart_disable(struct amdgpu_device *adev) +{ + /*unsigned i; + + for (i = 1; i < 16; ++i) { + uint32_t reg; + if (i < 8) + reg = VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i ; + else + reg = VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + (i - 8); + adev->vm_manager.saved_table_addr[i] = RREG32(reg); + }*/ + + /* Disable all tables */ + WREG32(VM_CONTEXT0_CNTL, 0); + WREG32(VM_CONTEXT1_CNTL, 0); + /* Setup TLB control */ + WREG32(MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE_NOT_IN_SYS | + SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU); + /* Setup L2 cache */ + WREG32(VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE | + ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE | + EFFECTIVE_L2_QUEUE_SIZE(7) | + CONTEXT1_IDENTITY_ACCESS_MODE(1)); + WREG32(VM_L2_CNTL2, 0); + WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY | + L2_CACHE_BIGK_FRAGMENT_SIZE(0)); + amdgpu_gart_table_vram_unpin(adev); +} + +static void gmc_v6_0_gart_fini(struct amdgpu_device *adev) +{ + amdgpu_gart_table_vram_free(adev); + amdgpu_gart_fini(adev); +} + +static int gmc_v6_0_vm_init(struct amdgpu_device *adev) +{ + /* + * number of VMs + * VMID 0 is reserved for System + * amdgpu graphics/compute will use VMIDs 1-7 + * amdkfd will use VMIDs 8-15 + */ + adev->vm_manager.num_ids = AMDGPU_NUM_OF_VMIDS; + amdgpu_vm_manager_init(adev); + + /* base offset of vram pages */ + if (adev->flags & AMD_IS_APU) { + u64 tmp = RREG32(MC_VM_FB_OFFSET); + tmp <<= 22; + adev->vm_manager.vram_base_offset = tmp; + } else + adev->vm_manager.vram_base_offset = 0; + + return 0; +} + +static void gmc_v6_0_vm_fini(struct amdgpu_device *adev) +{ +} + +static void gmc_v6_0_vm_decode_fault(struct amdgpu_device *adev, + u32 status, u32 addr, u32 mc_client) +{ + u32 mc_id; + u32 vmid = REG_GET_FIELD(status, mmVM_CONTEXT1_PROTECTION_FAULT_STATUS, xxVMID); + u32 protections = REG_GET_FIELD(status, mmVM_CONTEXT1_PROTECTION_FAULT_STATUS, + xxPROTECTIONS); + char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff, + (mc_client >> 8) & 0xff, mc_client & 0xff, 0 }; + + mc_id = REG_GET_FIELD(status, mmVM_CONTEXT1_PROTECTION_FAULT_STATUS, + xxMEMORY_CLIENT_ID); + + dev_err(adev->dev, "VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n", + protections, vmid, addr, + REG_GET_FIELD(status, mmVM_CONTEXT1_PROTECTION_FAULT_STATUS, + xxMEMORY_CLIENT_RW) ? + "write" : "read", block, mc_client, mc_id); +} + +/* +static const u32 mc_cg_registers[] = { + MC_HUB_MISC_HUB_CG, + MC_HUB_MISC_SIP_CG, + MC_HUB_MISC_VM_CG, + MC_XPB_CLK_GAT, + ATC_MISC_CG, + MC_CITF_MISC_WR_CG, + MC_CITF_MISC_RD_CG, + MC_CITF_MISC_VM_CG, + VM_L2_CG, +}; + +static const u32 mc_cg_ls_en[] = { + MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK, + MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK, + MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK, + MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK, + ATC_MISC_CG__MEM_LS_ENABLE_MASK, + MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK, + MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK, + MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK, + VM_L2_CG__MEM_LS_ENABLE_MASK, +}; + +static const u32 mc_cg_en[] = { + MC_HUB_MISC_HUB_CG__ENABLE_MASK, + MC_HUB_MISC_SIP_CG__ENABLE_MASK, + MC_HUB_MISC_VM_CG__ENABLE_MASK, + MC_XPB_CLK_GAT__ENABLE_MASK, + ATC_MISC_CG__ENABLE_MASK, + MC_CITF_MISC_WR_CG__ENABLE_MASK, + MC_CITF_MISC_RD_CG__ENABLE_MASK, + MC_CITF_MISC_VM_CG__ENABLE_MASK, + VM_L2_CG__ENABLE_MASK, +}; + +static void gmc_v6_0_enable_mc_ls(struct amdgpu_device *adev, + bool enable) +{ + int i; + u32 orig, data; + + for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) { + orig = data = RREG32(mc_cg_registers[i]); + if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_LS)) + data |= mc_cg_ls_en[i]; + else + data &= ~mc_cg_ls_en[i]; + if (data != orig) + WREG32(mc_cg_registers[i], data); + } +} + +static void gmc_v6_0_enable_mc_mgcg(struct amdgpu_device *adev, + bool enable) +{ + int i; + u32 orig, data; + + for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) { + orig = data = RREG32(mc_cg_registers[i]); + if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_MGCG)) + data |= mc_cg_en[i]; + else + data &= ~mc_cg_en[i]; + if (data != orig) + WREG32(mc_cg_registers[i], data); + } +} + +static void gmc_v6_0_enable_bif_mgls(struct amdgpu_device *adev, + bool enable) +{ + u32 orig, data; + + orig = data = RREG32_PCIE(ixPCIE_CNTL2); + + if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_BIF_LS)) { + data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1); + data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1); + data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1); + data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1); + } else { + data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0); + data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0); + data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0); + data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0); + } + + if (orig != data) + WREG32_PCIE(ixPCIE_CNTL2, data); +} + +static void gmc_v6_0_enable_hdp_mgcg(struct amdgpu_device *adev, + bool enable) +{ + u32 orig, data; + + orig = data = RREG32(HDP_HOST_PATH_CNTL); + + if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_MGCG)) + data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0); + else + data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1); + + if (orig != data) + WREG32(HDP_HOST_PATH_CNTL, data); +} + +static void gmc_v6_0_enable_hdp_ls(struct amdgpu_device *adev, + bool enable) +{ + u32 orig, data; + + orig = data = RREG32(HDP_MEM_POWER_LS); + + if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_LS)) + data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1); + else + data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0); + + if (orig != data) + WREG32(HDP_MEM_POWER_LS, data); +} +*/ + +static int gmc_v6_0_convert_vram_type(int mc_seq_vram_type) +{ + switch (mc_seq_vram_type) { + case MC_SEQ_MISC0__MT__GDDR1: + return AMDGPU_VRAM_TYPE_GDDR1; + case MC_SEQ_MISC0__MT__DDR2: + return AMDGPU_VRAM_TYPE_DDR2; + case MC_SEQ_MISC0__MT__GDDR3: + return AMDGPU_VRAM_TYPE_GDDR3; + case MC_SEQ_MISC0__MT__GDDR4: + return AMDGPU_VRAM_TYPE_GDDR4; + case MC_SEQ_MISC0__MT__GDDR5: + return AMDGPU_VRAM_TYPE_GDDR5; + case MC_SEQ_MISC0__MT__DDR3: + return AMDGPU_VRAM_TYPE_DDR3; + default: + return AMDGPU_VRAM_TYPE_UNKNOWN; + } +} + +static int gmc_v6_0_early_init(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + gmc_v6_0_set_gart_funcs(adev); + gmc_v6_0_set_irq_funcs(adev); + + if (adev->flags & AMD_IS_APU) { + adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN; + } else { + u32 tmp = RREG32(MC_SEQ_MISC0); + tmp &= MC_SEQ_MISC0__MT__MASK; + adev->mc.vram_type = gmc_v6_0_convert_vram_type(tmp); + } + + return 0; +} + +static int gmc_v6_0_late_init(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0); +} + +static int gmc_v6_0_sw_init(void *handle) +{ + int r; + int dma_bits; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault); + if (r) + return r; + + r = amdgpu_irq_add_id(adev, 147, &adev->mc.vm_fault); + if (r) + return r; + + adev->vm_manager.max_pfn = amdgpu_vm_size << 18; + + adev->mc.mc_mask = 0xffffffffffULL; + + adev->need_dma32 = false; + dma_bits = adev->need_dma32 ? 32 : 40; + r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits)); + if (r) { + adev->need_dma32 = true; + dma_bits = 32; + dev_warn(adev->dev, "amdgpu: No suitable DMA available.\n"); + } + r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits)); + if (r) { + pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32)); + dev_warn(adev->dev, "amdgpu: No coherent DMA available.\n"); + } + + r = gmc_v6_0_init_microcode(adev); + if (r) { + dev_err(adev->dev, "Failed to load mc firmware!\n"); + return r; + } + + r = amdgpu_ttm_global_init(adev); + if (r) { + return r; + } + + r = gmc_v6_0_mc_init(adev); + if (r) + return r; + + r = amdgpu_bo_init(adev); + if (r) + return r; + + r = gmc_v6_0_gart_init(adev); + if (r) + return r; + + if (!adev->vm_manager.enabled) { + r = gmc_v6_0_vm_init(adev); + if (r) { + dev_err(adev->dev, "vm manager initialization failed (%d).\n", r); + return r; + } + adev->vm_manager.enabled = true; + } + + return r; +} + +static int gmc_v6_0_sw_fini(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + if (adev->vm_manager.enabled) { + gmc_v6_0_vm_fini(adev); + adev->vm_manager.enabled = false; + } + gmc_v6_0_gart_fini(adev); + amdgpu_gem_force_release(adev); + amdgpu_bo_fini(adev); + + return 0; +} + +static int gmc_v6_0_hw_init(void *handle) +{ + int r; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + gmc_v6_0_mc_program(adev); + + if (!(adev->flags & AMD_IS_APU)) { + r = gmc_v6_0_mc_load_microcode(adev); + if (r) { + dev_err(adev->dev, "Failed to load MC firmware!\n"); + return r; + } + } + + r = gmc_v6_0_gart_enable(adev); + if (r) + return r; + + return r; +} + +static int gmc_v6_0_hw_fini(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + amdgpu_irq_put(adev, &adev->mc.vm_fault, 0); + gmc_v6_0_gart_disable(adev); + + return 0; +} + +static int gmc_v6_0_suspend(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + if (adev->vm_manager.enabled) { + gmc_v6_0_vm_fini(adev); + adev->vm_manager.enabled = false; + } + gmc_v6_0_hw_fini(adev); + + return 0; +} + +static int gmc_v6_0_resume(void *handle) +{ + int r; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + r = gmc_v6_0_hw_init(adev); + if (r) + return r; + + if (!adev->vm_manager.enabled) { + r = gmc_v6_0_vm_init(adev); + if (r) { + dev_err(adev->dev, "vm manager initialization failed (%d).\n", r); + return r; + } + adev->vm_manager.enabled = true; + } + + return r; +} + +static bool gmc_v6_0_is_idle(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + u32 tmp = RREG32(SRBM_STATUS); + + if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | + SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK)) + return false; + + return true; +} + +static int gmc_v6_0_wait_for_idle(void *handle) +{ + unsigned i; + u32 tmp; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + for (i = 0; i < adev->usec_timeout; i++) { + tmp = RREG32(SRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK | + SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | + SRBM_STATUS__MCC_BUSY_MASK | + SRBM_STATUS__MCD_BUSY_MASK | + SRBM_STATUS__VMC_BUSY_MASK); + if (!tmp) + return 0; + udelay(1); + } + return -ETIMEDOUT; + +} + +static int gmc_v6_0_soft_reset(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + struct amdgpu_mode_mc_save save; + u32 srbm_soft_reset = 0; + u32 tmp = RREG32(SRBM_STATUS); + + if (tmp & SRBM_STATUS__VMC_BUSY_MASK) + srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, + mmSRBM_SOFT_RESET, xxSOFT_RESET_VMC, 1); + + if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | + SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) { + if (!(adev->flags & AMD_IS_APU)) + srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, + mmSRBM_SOFT_RESET, xxSOFT_RESET_MC, 1); + } + + if (srbm_soft_reset) { + gmc_v6_0_mc_stop(adev, &save); + if (gmc_v6_0_wait_for_idle(adev)) { + dev_warn(adev->dev, "Wait for GMC idle timed out !\n"); + } + + + tmp = RREG32(SRBM_SOFT_RESET); + tmp |= srbm_soft_reset; + dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); + WREG32(SRBM_SOFT_RESET, tmp); + tmp = RREG32(SRBM_SOFT_RESET); + + udelay(50); + + tmp &= ~srbm_soft_reset; + WREG32(SRBM_SOFT_RESET, tmp); + tmp = RREG32(SRBM_SOFT_RESET); + + udelay(50); + + gmc_v6_0_mc_resume(adev, &save); + udelay(50); + } + + return 0; +} + +static int gmc_v6_0_vm_fault_interrupt_state(struct amdgpu_device *adev, + struct amdgpu_irq_src *src, + unsigned type, + enum amdgpu_interrupt_state state) +{ + u32 tmp; + u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | + VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | + VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | + VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | + VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | + VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK); + + switch (state) { + case AMDGPU_IRQ_STATE_DISABLE: + tmp = RREG32(VM_CONTEXT0_CNTL); + tmp &= ~bits; + WREG32(VM_CONTEXT0_CNTL, tmp); + tmp = RREG32(VM_CONTEXT1_CNTL); + tmp &= ~bits; + WREG32(VM_CONTEXT1_CNTL, tmp); + break; + case AMDGPU_IRQ_STATE_ENABLE: + tmp = RREG32(VM_CONTEXT0_CNTL); + tmp |= bits; + WREG32(VM_CONTEXT0_CNTL, tmp); + tmp = RREG32(VM_CONTEXT1_CNTL); + tmp |= bits; + WREG32(VM_CONTEXT1_CNTL, tmp); + break; + default: + break; + } + + return 0; +} + +static int gmc_v6_0_process_interrupt(struct amdgpu_device *adev, + struct amdgpu_irq_src *source, + struct amdgpu_iv_entry *entry) +{ + u32 addr, status; + + addr = RREG32(VM_CONTEXT1_PROTECTION_FAULT_ADDR); + status = RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS); + WREG32_P(VM_CONTEXT1_CNTL2, 1, ~1); + + if (!addr && !status) + return 0; + + if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST) + gmc_v6_0_set_fault_enable_default(adev, false); + + dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n", + entry->src_id, entry->src_data); + dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", + addr); + dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", + status); + gmc_v6_0_vm_decode_fault(adev, status, addr, 0); + + return 0; +} + +static int gmc_v6_0_set_clockgating_state(void *handle, + enum amd_clockgating_state state) +{ + return 0; +} + +static int gmc_v6_0_set_powergating_state(void *handle, + enum amd_powergating_state state) +{ + return 0; +} + +const struct amd_ip_funcs gmc_v6_0_ip_funcs = { + .name = "gmc_v6_0", + .early_init = gmc_v6_0_early_init, + .late_init = gmc_v6_0_late_init, + .sw_init = gmc_v6_0_sw_init, + .sw_fini = gmc_v6_0_sw_fini, + .hw_init = gmc_v6_0_hw_init, + .hw_fini = gmc_v6_0_hw_fini, + .suspend = gmc_v6_0_suspend, + .resume = gmc_v6_0_resume, + .is_idle = gmc_v6_0_is_idle, + .wait_for_idle = gmc_v6_0_wait_for_idle, + .soft_reset = gmc_v6_0_soft_reset, + .set_clockgating_state = gmc_v6_0_set_clockgating_state, + .set_powergating_state = gmc_v6_0_set_powergating_state, +}; + +static const struct amdgpu_gart_funcs gmc_v6_0_gart_funcs = { + .flush_gpu_tlb = gmc_v6_0_gart_flush_gpu_tlb, + .set_pte_pde = gmc_v6_0_gart_set_pte_pde, +}; + +static const struct amdgpu_irq_src_funcs gmc_v6_0_irq_funcs = { + .set = gmc_v6_0_vm_fault_interrupt_state, + .process = gmc_v6_0_process_interrupt, +}; + +static void gmc_v6_0_set_gart_funcs(struct amdgpu_device *adev) +{ + if (adev->gart.gart_funcs == NULL) + adev->gart.gart_funcs = &gmc_v6_0_gart_funcs; +} + +static void gmc_v6_0_set_irq_funcs(struct amdgpu_device *adev) +{ + adev->mc.vm_fault.num_types = 1; + adev->mc.vm_fault.funcs = &gmc_v6_0_irq_funcs; +} + |