diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 1400 |
1 files changed, 1400 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c new file mode 100644 index 000000000..6a6929ac2 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c @@ -0,0 +1,1400 @@ +/* + * 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 <linux/module.h> +#include <linux/pci.h> + +#include <drm/drm_cache.h> +#include "amdgpu.h" +#include "cikd.h" +#include "cik.h" +#include "gmc_v7_0.h" +#include "amdgpu_ucode.h" +#include "amdgpu_amdkfd.h" +#include "amdgpu_gem.h" + +#include "bif/bif_4_1_d.h" +#include "bif/bif_4_1_sh_mask.h" + +#include "gmc/gmc_7_1_d.h" +#include "gmc/gmc_7_1_sh_mask.h" + +#include "oss/oss_2_0_d.h" +#include "oss/oss_2_0_sh_mask.h" + +#include "dce/dce_8_0_d.h" +#include "dce/dce_8_0_sh_mask.h" + +#include "amdgpu_atombios.h" + +#include "ivsrcid/ivsrcid_vislands30.h" + +static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev); +static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev); +static int gmc_v7_0_wait_for_idle(void *handle); + +MODULE_FIRMWARE("amdgpu/bonaire_mc.bin"); +MODULE_FIRMWARE("amdgpu/hawaii_mc.bin"); +MODULE_FIRMWARE("amdgpu/topaz_mc.bin"); + +static const u32 golden_settings_iceland_a11[] = { + mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff, + mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff, + mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff, + mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff +}; + +static const u32 iceland_mgcg_cgcg_init[] = { + mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 +}; + +static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev) +{ + switch (adev->asic_type) { + case CHIP_TOPAZ: + amdgpu_device_program_register_sequence(adev, + iceland_mgcg_cgcg_init, + ARRAY_SIZE(iceland_mgcg_cgcg_init)); + amdgpu_device_program_register_sequence(adev, + golden_settings_iceland_a11, + ARRAY_SIZE(golden_settings_iceland_a11)); + break; + default: + break; + } +} + +static void gmc_v7_0_mc_stop(struct amdgpu_device *adev) +{ + u32 blackout; + + gmc_v7_0_wait_for_idle((void *)adev); + + blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL); + if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) { + /* Block CPU access */ + WREG32(mmBIF_FB_EN, 0); + /* blackout the MC */ + blackout = REG_SET_FIELD(blackout, + MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0); + WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1); + } + /* wait for the MC to settle */ + udelay(100); +} + +static void gmc_v7_0_mc_resume(struct amdgpu_device *adev) +{ + u32 tmp; + + /* unblackout the MC */ + tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL); + tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0); + WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp); + /* allow CPU access */ + tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1); + tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1); + WREG32(mmBIF_FB_EN, tmp); +} + +/** + * gmc_v7_0_init_microcode - load ucode images from disk + * + * @adev: amdgpu_device pointer + * + * Use the firmware interface to load the ucode images into + * the driver (not loaded into hw). + * Returns 0 on success, error on failure. + */ +static int gmc_v7_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_BONAIRE: + chip_name = "bonaire"; + break; + case CHIP_HAWAII: + chip_name = "hawaii"; + break; + case CHIP_TOPAZ: + chip_name = "topaz"; + break; + case CHIP_KAVERI: + case CHIP_KABINI: + case CHIP_MULLINS: + return 0; + default: + return -EINVAL; + } + + snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name); + + err = amdgpu_ucode_request(adev, &adev->gmc.fw, fw_name); + if (err) { + pr_err("cik_mc: Failed to load firmware \"%s\"\n", fw_name); + amdgpu_ucode_release(&adev->gmc.fw); + } + return err; +} + +/** + * gmc_v7_0_mc_load_microcode - load MC ucode into the hw + * + * @adev: amdgpu_device pointer + * + * Load the GDDR MC ucode into the hw (CIK). + * Returns 0 on success, error on failure. + */ +static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev) +{ + const struct mc_firmware_header_v1_0 *hdr; + const __le32 *fw_data = NULL; + const __le32 *io_mc_regs = NULL; + u32 running; + int i, ucode_size, regs_size; + + if (!adev->gmc.fw) + return -EINVAL; + + hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data; + amdgpu_ucode_print_mc_hdr(&hdr->header); + + adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version); + regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2); + io_mc_regs = (const __le32 *) + (adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes)); + ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; + fw_data = (const __le32 *) + (adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); + + running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN); + + if (running == 0) { + /* reset the engine and set to writable */ + WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008); + WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010); + + /* load mc io regs */ + for (i = 0; i < regs_size; i++) { + WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++)); + WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++)); + } + /* load the MC ucode */ + for (i = 0; i < ucode_size; i++) + WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++)); + + /* put the engine back into the active state */ + WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008); + WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004); + WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001); + + /* wait for training to complete */ + for (i = 0; i < adev->usec_timeout; i++) { + if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL), + MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0)) + break; + udelay(1); + } + for (i = 0; i < adev->usec_timeout; i++) { + if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL), + MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1)) + break; + udelay(1); + } + } + + return 0; +} + +static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev, + struct amdgpu_gmc *mc) +{ + u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF; + + base <<= 24; + + amdgpu_gmc_vram_location(adev, mc, base); + amdgpu_gmc_gart_location(adev, mc); +} + +/** + * gmc_v7_0_mc_program - program the GPU memory controller + * + * @adev: amdgpu_device pointer + * + * Set the location of vram, gart, and AGP in the GPU's + * physical address space (CIK). + */ +static void gmc_v7_0_mc_program(struct amdgpu_device *adev) +{ + 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(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0); + + if (gmc_v7_0_wait_for_idle((void *)adev)) + dev_warn(adev->dev, "Wait for MC idle timedout !\n"); + + if (adev->mode_info.num_crtc) { + /* Lockout access through VGA aperture*/ + tmp = RREG32(mmVGA_HDP_CONTROL); + tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1); + WREG32(mmVGA_HDP_CONTROL, tmp); + + /* disable VGA render */ + tmp = RREG32(mmVGA_RENDER_CONTROL); + tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0); + WREG32(mmVGA_RENDER_CONTROL, tmp); + } + /* Update configuration */ + WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, + adev->gmc.vram_start >> 12); + WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, + adev->gmc.vram_end >> 12); + WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, + adev->mem_scratch.gpu_addr >> 12); + WREG32(mmMC_VM_AGP_BASE, 0); + WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF); + WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF); + if (gmc_v7_0_wait_for_idle((void *)adev)) + dev_warn(adev->dev, "Wait for MC idle timedout !\n"); + + WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK); + + tmp = RREG32(mmHDP_MISC_CNTL); + tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0); + WREG32(mmHDP_MISC_CNTL, tmp); + + tmp = RREG32(mmHDP_HOST_PATH_CNTL); + WREG32(mmHDP_HOST_PATH_CNTL, tmp); +} + +/** + * gmc_v7_0_mc_init - initialize the memory controller driver params + * + * @adev: amdgpu_device pointer + * + * Look up the amount of vram, vram width, and decide how to place + * vram and gart within the GPU's physical address space (CIK). + * Returns 0 for success. + */ +static int gmc_v7_0_mc_init(struct amdgpu_device *adev) +{ + int r; + + adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev); + if (!adev->gmc.vram_width) { + u32 tmp; + int chansize, numchan; + + /* Get VRAM informations */ + tmp = RREG32(mmMC_ARB_RAMCFG); + if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) + chansize = 64; + else + chansize = 32; + + tmp = RREG32(mmMC_SHARED_CHMAP); + switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) { + 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->gmc.vram_width = numchan * chansize; + } + /* size in MB on si */ + adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL; + adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL; + + if (!(adev->flags & AMD_IS_APU)) { + r = amdgpu_device_resize_fb_bar(adev); + if (r) + return r; + } + adev->gmc.aper_base = pci_resource_start(adev->pdev, 0); + adev->gmc.aper_size = pci_resource_len(adev->pdev, 0); + +#ifdef CONFIG_X86_64 + if ((adev->flags & AMD_IS_APU) && + adev->gmc.real_vram_size > adev->gmc.aper_size && + !amdgpu_passthrough(adev)) { + adev->gmc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22; + adev->gmc.aper_size = adev->gmc.real_vram_size; + } +#endif + + adev->gmc.visible_vram_size = adev->gmc.aper_size; + + /* set the gart size */ + if (amdgpu_gart_size == -1) { + switch (adev->asic_type) { + case CHIP_TOPAZ: /* no MM engines */ + default: + adev->gmc.gart_size = 256ULL << 20; + break; +#ifdef CONFIG_DRM_AMDGPU_CIK + case CHIP_BONAIRE: /* UVD, VCE do not support GPUVM */ + case CHIP_HAWAII: /* UVD, VCE do not support GPUVM */ + case CHIP_KAVERI: /* UVD, VCE do not support GPUVM */ + case CHIP_KABINI: /* UVD, VCE do not support GPUVM */ + case CHIP_MULLINS: /* UVD, VCE do not support GPUVM */ + adev->gmc.gart_size = 1024ULL << 20; + break; +#endif + } + } else { + adev->gmc.gart_size = (u64)amdgpu_gart_size << 20; + } + + adev->gmc.gart_size += adev->pm.smu_prv_buffer_size; + gmc_v7_0_vram_gtt_location(adev, &adev->gmc); + + return 0; +} + +/** + * gmc_v7_0_flush_gpu_tlb_pasid - tlb flush via pasid + * + * @adev: amdgpu_device pointer + * @pasid: pasid to be flush + * @flush_type: type of flush + * @all_hub: flush all hubs + * @inst: is used to select which instance of KIQ to use for the invalidation + * + * Flush the TLB for the requested pasid. + */ +static int gmc_v7_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev, + uint16_t pasid, uint32_t flush_type, + bool all_hub, uint32_t inst) +{ + int vmid; + unsigned int tmp; + + if (amdgpu_in_reset(adev)) + return -EIO; + + for (vmid = 1; vmid < 16; vmid++) { + + tmp = RREG32(mmATC_VMID0_PASID_MAPPING + vmid); + if ((tmp & ATC_VMID0_PASID_MAPPING__VALID_MASK) && + (tmp & ATC_VMID0_PASID_MAPPING__PASID_MASK) == pasid) { + WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid); + RREG32(mmVM_INVALIDATE_RESPONSE); + break; + } + } + + return 0; +} + +/* + * GART + * VMID 0 is the physical GPU addresses as used by the kernel. + * VMIDs 1-15 are used for userspace clients and are handled + * by the amdgpu vm/hsa code. + */ + +/** + * gmc_v7_0_flush_gpu_tlb - gart tlb flush callback + * + * @adev: amdgpu_device pointer + * @vmid: vm instance to flush + * @vmhub: which hub to flush + * @flush_type: type of flush + * * + * Flush the TLB for the requested page table (CIK). + */ +static void gmc_v7_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid, + uint32_t vmhub, uint32_t flush_type) +{ + /* bits 0-15 are the VM contexts0-15 */ + WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid); +} + +static uint64_t gmc_v7_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring, + unsigned int vmid, uint64_t pd_addr) +{ + uint32_t reg; + + if (vmid < 8) + reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid; + else + reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8; + amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12); + + /* bits 0-15 are the VM contexts0-15 */ + amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid); + + return pd_addr; +} + +static void gmc_v7_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned int vmid, + unsigned int pasid) +{ + amdgpu_ring_emit_wreg(ring, mmIH_VMID_0_LUT + vmid, pasid); +} + +static void gmc_v7_0_get_vm_pde(struct amdgpu_device *adev, int level, + uint64_t *addr, uint64_t *flags) +{ + BUG_ON(*addr & 0xFFFFFF0000000FFFULL); +} + +static void gmc_v7_0_get_vm_pte(struct amdgpu_device *adev, + struct amdgpu_bo_va_mapping *mapping, + uint64_t *flags) +{ + *flags &= ~AMDGPU_PTE_EXECUTABLE; + *flags &= ~AMDGPU_PTE_PRT; +} + +/** + * gmc_v7_0_set_fault_enable_default - update VM fault handling + * + * @adev: amdgpu_device pointer + * @value: true redirects VM faults to the default page + */ +static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev, + bool value) +{ + u32 tmp; + + tmp = RREG32(mmVM_CONTEXT1_CNTL); + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, + RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, + DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, + PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value); + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, + VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value); + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, + READ_PROTECTION_FAULT_ENABLE_DEFAULT, value); + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, + WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value); + WREG32(mmVM_CONTEXT1_CNTL, tmp); +} + +/** + * gmc_v7_0_set_prt - set PRT VM fault + * + * @adev: amdgpu_device pointer + * @enable: enable/disable VM fault handling for PRT + */ +static void gmc_v7_0_set_prt(struct amdgpu_device *adev, bool enable) +{ + uint32_t tmp; + + if (enable && !adev->gmc.prt_warning) { + dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n"); + adev->gmc.prt_warning = true; + } + + tmp = RREG32(mmVM_PRT_CNTL); + tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, + CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable); + tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, + CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable); + tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, + TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable); + tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, + TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable); + tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, + L2_CACHE_STORE_INVALID_ENTRIES, enable); + tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, + L1_TLB_STORE_INVALID_ENTRIES, enable); + tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, + MASK_PDE0_FAULT, enable); + WREG32(mmVM_PRT_CNTL, tmp); + + if (enable) { + uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT; + uint32_t high = adev->vm_manager.max_pfn - + (AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT); + + WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low); + WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low); + WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low); + WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low); + WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high); + WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high); + WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high); + WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high); + } else { + WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff); + WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff); + WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff); + WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff); + WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0); + WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0); + WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0); + WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0); + } +} + +/** + * gmc_v7_0_gart_enable - gart enable + * + * @adev: amdgpu_device pointer + * + * This sets up the TLBs, programs the page tables for VMID0, + * sets up the hw for VMIDs 1-15 which are allocated on + * demand, and sets up the global locations for the LDS, GDS, + * and GPUVM for FSA64 clients (CIK). + * Returns 0 for success, errors for failure. + */ +static int gmc_v7_0_gart_enable(struct amdgpu_device *adev) +{ + uint64_t table_addr; + u32 tmp, field; + int i; + + if (adev->gart.bo == NULL) { + dev_err(adev->dev, "No VRAM object for PCIE GART.\n"); + return -EINVAL; + } + amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr); + table_addr = amdgpu_bo_gpu_offset(adev->gart.bo); + + /* Setup TLB control */ + tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL); + tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1); + tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1); + tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3); + tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1); + tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0); + WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp); + /* Setup L2 cache */ + tmp = RREG32(mmVM_L2_CNTL); + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1); + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1); + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1); + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1); + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7); + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1); + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1); + WREG32(mmVM_L2_CNTL, tmp); + tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1); + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1); + WREG32(mmVM_L2_CNTL2, tmp); + + field = adev->vm_manager.fragment_size; + tmp = RREG32(mmVM_L2_CNTL3); + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1); + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field); + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field); + WREG32(mmVM_L2_CNTL3, tmp); + /* setup context0 */ + WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12); + WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12); + WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12); + WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR, + (u32)(adev->dummy_page_addr >> 12)); + WREG32(mmVM_CONTEXT0_CNTL2, 0); + tmp = RREG32(mmVM_CONTEXT0_CNTL); + tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1); + tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0); + tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); + WREG32(mmVM_CONTEXT0_CNTL, tmp); + + WREG32(0x575, 0); + WREG32(0x576, 0); + WREG32(0x577, 0); + + /* empty context1-15 */ + /* FIXME start with 4G, once using 2 level pt switch to full + * vm size space + */ + /* set vm size, must be a multiple of 4 */ + WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0); + WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1); + for (i = 1; i < AMDGPU_NUM_VMID; i++) { + if (i < 8) + WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i, + table_addr >> 12); + else + WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8, + table_addr >> 12); + } + + /* enable context1-15 */ + WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR, + (u32)(adev->dummy_page_addr >> 12)); + WREG32(mmVM_CONTEXT1_CNTL2, 4); + tmp = RREG32(mmVM_CONTEXT1_CNTL); + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1); + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1); + tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE, + adev->vm_manager.block_size - 9); + WREG32(mmVM_CONTEXT1_CNTL, tmp); + if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) + gmc_v7_0_set_fault_enable_default(adev, false); + else + gmc_v7_0_set_fault_enable_default(adev, true); + + if (adev->asic_type == CHIP_KAVERI) { + tmp = RREG32(mmCHUB_CONTROL); + tmp &= ~BYPASS_VM; + WREG32(mmCHUB_CONTROL, tmp); + } + + gmc_v7_0_flush_gpu_tlb(adev, 0, 0, 0); + DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", + (unsigned int)(adev->gmc.gart_size >> 20), + (unsigned long long)table_addr); + return 0; +} + +static int gmc_v7_0_gart_init(struct amdgpu_device *adev) +{ + int r; + + if (adev->gart.bo) { + WARN(1, "R600 PCIE GART already initialized\n"); + return 0; + } + /* Initialize common gart structure */ + r = amdgpu_gart_init(adev); + if (r) + return r; + adev->gart.table_size = adev->gart.num_gpu_pages * 8; + adev->gart.gart_pte_flags = 0; + return amdgpu_gart_table_vram_alloc(adev); +} + +/** + * gmc_v7_0_gart_disable - gart disable + * + * @adev: amdgpu_device pointer + * + * This disables all VM page table (CIK). + */ +static void gmc_v7_0_gart_disable(struct amdgpu_device *adev) +{ + u32 tmp; + + /* Disable all tables */ + WREG32(mmVM_CONTEXT0_CNTL, 0); + WREG32(mmVM_CONTEXT1_CNTL, 0); + /* Setup TLB control */ + tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL); + tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0); + tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0); + tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0); + WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp); + /* Setup L2 cache */ + tmp = RREG32(mmVM_L2_CNTL); + tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0); + WREG32(mmVM_L2_CNTL, tmp); + WREG32(mmVM_L2_CNTL2, 0); +} + +/** + * gmc_v7_0_vm_decode_fault - print human readable fault info + * + * @adev: amdgpu_device pointer + * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value + * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value + * @mc_client: VM_CONTEXT1_PROTECTION_FAULT_MCCLIENT register value + * @pasid: debug logging only - no functional use + * + * Print human readable fault information (CIK). + */ +static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev, u32 status, + u32 addr, u32 mc_client, unsigned int pasid) +{ + u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID); + u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, + PROTECTIONS); + char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff, + (mc_client >> 8) & 0xff, mc_client & 0xff, 0 }; + u32 mc_id; + + mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, + MEMORY_CLIENT_ID); + + dev_err(adev->dev, "VM fault (0x%02x, vmid %d, pasid %d) at page %u, %s from '%s' (0x%08x) (%d)\n", + protections, vmid, pasid, addr, + REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, + MEMORY_CLIENT_RW) ? + "write" : "read", block, mc_client, mc_id); +} + + +static const u32 mc_cg_registers[] = { + mmMC_HUB_MISC_HUB_CG, + mmMC_HUB_MISC_SIP_CG, + mmMC_HUB_MISC_VM_CG, + mmMC_XPB_CLK_GAT, + mmATC_MISC_CG, + mmMC_CITF_MISC_WR_CG, + mmMC_CITF_MISC_RD_CG, + mmMC_CITF_MISC_VM_CG, + mmVM_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_v7_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 & AMD_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_v7_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 & AMD_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_v7_0_enable_bif_mgls(struct amdgpu_device *adev, + bool enable) +{ + u32 orig, data; + + orig = data = RREG32_PCIE(ixPCIE_CNTL2); + + if (enable && (adev->cg_flags & AMD_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_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev, + bool enable) +{ + u32 orig, data; + + orig = data = RREG32(mmHDP_HOST_PATH_CNTL); + + if (enable && (adev->cg_flags & AMD_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(mmHDP_HOST_PATH_CNTL, data); +} + +static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev, + bool enable) +{ + u32 orig, data; + + orig = data = RREG32(mmHDP_MEM_POWER_LS); + + if (enable && (adev->cg_flags & AMD_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(mmHDP_MEM_POWER_LS, data); +} + +static int gmc_v7_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__HBM: + return AMDGPU_VRAM_TYPE_HBM; + case MC_SEQ_MISC0__MT__DDR3: + return AMDGPU_VRAM_TYPE_DDR3; + default: + return AMDGPU_VRAM_TYPE_UNKNOWN; + } +} + +static int gmc_v7_0_early_init(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + gmc_v7_0_set_gmc_funcs(adev); + gmc_v7_0_set_irq_funcs(adev); + + adev->gmc.shared_aperture_start = 0x2000000000000000ULL; + adev->gmc.shared_aperture_end = + adev->gmc.shared_aperture_start + (4ULL << 30) - 1; + adev->gmc.private_aperture_start = + adev->gmc.shared_aperture_end + 1; + adev->gmc.private_aperture_end = + adev->gmc.private_aperture_start + (4ULL << 30) - 1; + adev->gmc.noretry_flags = AMDGPU_VM_NORETRY_FLAGS_TF; + + return 0; +} + +static int gmc_v7_0_late_init(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS) + return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0); + else + return 0; +} + +static unsigned int gmc_v7_0_get_vbios_fb_size(struct amdgpu_device *adev) +{ + u32 d1vga_control = RREG32(mmD1VGA_CONTROL); + unsigned int size; + + if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) { + size = AMDGPU_VBIOS_VGA_ALLOCATION; + } else { + u32 viewport = RREG32(mmVIEWPORT_SIZE); + + size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) * + REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) * + 4); + } + + return size; +} + +static int gmc_v7_0_sw_init(void *handle) +{ + int r; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + set_bit(AMDGPU_GFXHUB(0), adev->vmhubs_mask); + + if (adev->flags & AMD_IS_APU) { + adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN; + } else { + u32 tmp = RREG32(mmMC_SEQ_MISC0); + + tmp &= MC_SEQ_MISC0__MT__MASK; + adev->gmc.vram_type = gmc_v7_0_convert_vram_type(tmp); + } + + r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_PAGE_INV_FAULT, &adev->gmc.vm_fault); + if (r) + return r; + + r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_MEM_PROT_FAULT, &adev->gmc.vm_fault); + if (r) + return r; + + /* Adjust VM size here. + * Currently set to 4GB ((1 << 20) 4k pages). + * Max GPUVM size for cayman and SI is 40 bits. + */ + amdgpu_vm_adjust_size(adev, 64, 9, 1, 40); + + /* Set the internal MC address mask + * This is the max address of the GPU's + * internal address space. + */ + adev->gmc.mc_mask = 0xffffffffffULL; /* 40 bit MC */ + + r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(40)); + if (r) { + pr_warn("No suitable DMA available\n"); + return r; + } + adev->need_swiotlb = drm_need_swiotlb(40); + + r = gmc_v7_0_init_microcode(adev); + if (r) { + DRM_ERROR("Failed to load mc firmware!\n"); + return r; + } + + r = gmc_v7_0_mc_init(adev); + if (r) + return r; + + amdgpu_gmc_get_vbios_allocations(adev); + + /* Memory manager */ + r = amdgpu_bo_init(adev); + if (r) + return r; + + r = gmc_v7_0_gart_init(adev); + if (r) + return r; + + /* + * number of VMs + * VMID 0 is reserved for System + * amdgpu graphics/compute will use VMIDs 1-7 + * amdkfd will use VMIDs 8-15 + */ + adev->vm_manager.first_kfd_vmid = 8; + amdgpu_vm_manager_init(adev); + + /* base offset of vram pages */ + if (adev->flags & AMD_IS_APU) { + u64 tmp = RREG32(mmMC_VM_FB_OFFSET); + + tmp <<= 22; + adev->vm_manager.vram_base_offset = tmp; + } else { + adev->vm_manager.vram_base_offset = 0; + } + + adev->gmc.vm_fault_info = kmalloc(sizeof(struct kfd_vm_fault_info), + GFP_KERNEL); + if (!adev->gmc.vm_fault_info) + return -ENOMEM; + atomic_set(&adev->gmc.vm_fault_info_updated, 0); + + return 0; +} + +static int gmc_v7_0_sw_fini(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + amdgpu_gem_force_release(adev); + amdgpu_vm_manager_fini(adev); + kfree(adev->gmc.vm_fault_info); + amdgpu_gart_table_vram_free(adev); + amdgpu_bo_fini(adev); + amdgpu_ucode_release(&adev->gmc.fw); + + return 0; +} + +static int gmc_v7_0_hw_init(void *handle) +{ + int r; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + gmc_v7_0_init_golden_registers(adev); + + gmc_v7_0_mc_program(adev); + + if (!(adev->flags & AMD_IS_APU)) { + r = gmc_v7_0_mc_load_microcode(adev); + if (r) { + DRM_ERROR("Failed to load MC firmware!\n"); + return r; + } + } + + r = gmc_v7_0_gart_enable(adev); + if (r) + return r; + + if (amdgpu_emu_mode == 1) + return amdgpu_gmc_vram_checking(adev); + else + return r; +} + +static int gmc_v7_0_hw_fini(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0); + gmc_v7_0_gart_disable(adev); + + return 0; +} + +static int gmc_v7_0_suspend(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + gmc_v7_0_hw_fini(adev); + + return 0; +} + +static int gmc_v7_0_resume(void *handle) +{ + int r; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + r = gmc_v7_0_hw_init(adev); + if (r) + return r; + + amdgpu_vmid_reset_all(adev); + + return 0; +} + +static bool gmc_v7_0_is_idle(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + u32 tmp = RREG32(mmSRBM_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_v7_0_wait_for_idle(void *handle) +{ + unsigned int i; + u32 tmp; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + for (i = 0; i < adev->usec_timeout; i++) { + /* read MC_STATUS */ + tmp = RREG32(mmSRBM_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_v7_0_soft_reset(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + u32 srbm_soft_reset = 0; + u32 tmp = RREG32(mmSRBM_STATUS); + + if (tmp & SRBM_STATUS__VMC_BUSY_MASK) + srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, + SRBM_SOFT_RESET, SOFT_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, + SRBM_SOFT_RESET, SOFT_RESET_MC, 1); + } + + if (srbm_soft_reset) { + gmc_v7_0_mc_stop(adev); + if (gmc_v7_0_wait_for_idle((void *)adev)) + dev_warn(adev->dev, "Wait for GMC idle timed out !\n"); + + tmp = RREG32(mmSRBM_SOFT_RESET); + tmp |= srbm_soft_reset; + dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); + WREG32(mmSRBM_SOFT_RESET, tmp); + tmp = RREG32(mmSRBM_SOFT_RESET); + + udelay(50); + + tmp &= ~srbm_soft_reset; + WREG32(mmSRBM_SOFT_RESET, tmp); + tmp = RREG32(mmSRBM_SOFT_RESET); + + /* Wait a little for things to settle down */ + udelay(50); + + gmc_v7_0_mc_resume(adev); + udelay(50); + } + + return 0; +} + +static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev, + struct amdgpu_irq_src *src, + unsigned int 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: + /* system context */ + tmp = RREG32(mmVM_CONTEXT0_CNTL); + tmp &= ~bits; + WREG32(mmVM_CONTEXT0_CNTL, tmp); + /* VMs */ + tmp = RREG32(mmVM_CONTEXT1_CNTL); + tmp &= ~bits; + WREG32(mmVM_CONTEXT1_CNTL, tmp); + break; + case AMDGPU_IRQ_STATE_ENABLE: + /* system context */ + tmp = RREG32(mmVM_CONTEXT0_CNTL); + tmp |= bits; + WREG32(mmVM_CONTEXT0_CNTL, tmp); + /* VMs */ + tmp = RREG32(mmVM_CONTEXT1_CNTL); + tmp |= bits; + WREG32(mmVM_CONTEXT1_CNTL, tmp); + break; + default: + break; + } + + return 0; +} + +static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev, + struct amdgpu_irq_src *source, + struct amdgpu_iv_entry *entry) +{ + u32 addr, status, mc_client, vmid; + + addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR); + status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS); + mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT); + /* reset addr and status */ + WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1); + + if (!addr && !status) + return 0; + + if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST) + gmc_v7_0_set_fault_enable_default(adev, false); + + if (printk_ratelimit()) { + dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n", + entry->src_id, entry->src_data[0]); + 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_v7_0_vm_decode_fault(adev, status, addr, mc_client, + entry->pasid); + } + + vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, + VMID); + if (amdgpu_amdkfd_is_kfd_vmid(adev, vmid) + && !atomic_read(&adev->gmc.vm_fault_info_updated)) { + struct kfd_vm_fault_info *info = adev->gmc.vm_fault_info; + u32 protections = REG_GET_FIELD(status, + VM_CONTEXT1_PROTECTION_FAULT_STATUS, + PROTECTIONS); + + info->vmid = vmid; + info->mc_id = REG_GET_FIELD(status, + VM_CONTEXT1_PROTECTION_FAULT_STATUS, + MEMORY_CLIENT_ID); + info->status = status; + info->page_addr = addr; + info->prot_valid = protections & 0x7 ? true : false; + info->prot_read = protections & 0x8 ? true : false; + info->prot_write = protections & 0x10 ? true : false; + info->prot_exec = protections & 0x20 ? true : false; + mb(); + atomic_set(&adev->gmc.vm_fault_info_updated, 1); + } + + return 0; +} + +static int gmc_v7_0_set_clockgating_state(void *handle, + enum amd_clockgating_state state) +{ + bool gate = false; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + if (state == AMD_CG_STATE_GATE) + gate = true; + + if (!(adev->flags & AMD_IS_APU)) { + gmc_v7_0_enable_mc_mgcg(adev, gate); + gmc_v7_0_enable_mc_ls(adev, gate); + } + gmc_v7_0_enable_bif_mgls(adev, gate); + gmc_v7_0_enable_hdp_mgcg(adev, gate); + gmc_v7_0_enable_hdp_ls(adev, gate); + + return 0; +} + +static int gmc_v7_0_set_powergating_state(void *handle, + enum amd_powergating_state state) +{ + return 0; +} + +static const struct amd_ip_funcs gmc_v7_0_ip_funcs = { + .name = "gmc_v7_0", + .early_init = gmc_v7_0_early_init, + .late_init = gmc_v7_0_late_init, + .sw_init = gmc_v7_0_sw_init, + .sw_fini = gmc_v7_0_sw_fini, + .hw_init = gmc_v7_0_hw_init, + .hw_fini = gmc_v7_0_hw_fini, + .suspend = gmc_v7_0_suspend, + .resume = gmc_v7_0_resume, + .is_idle = gmc_v7_0_is_idle, + .wait_for_idle = gmc_v7_0_wait_for_idle, + .soft_reset = gmc_v7_0_soft_reset, + .set_clockgating_state = gmc_v7_0_set_clockgating_state, + .set_powergating_state = gmc_v7_0_set_powergating_state, +}; + +static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = { + .flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb, + .flush_gpu_tlb_pasid = gmc_v7_0_flush_gpu_tlb_pasid, + .emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb, + .emit_pasid_mapping = gmc_v7_0_emit_pasid_mapping, + .set_prt = gmc_v7_0_set_prt, + .get_vm_pde = gmc_v7_0_get_vm_pde, + .get_vm_pte = gmc_v7_0_get_vm_pte, + .get_vbios_fb_size = gmc_v7_0_get_vbios_fb_size, +}; + +static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = { + .set = gmc_v7_0_vm_fault_interrupt_state, + .process = gmc_v7_0_process_interrupt, +}; + +static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev) +{ + adev->gmc.gmc_funcs = &gmc_v7_0_gmc_funcs; +} + +static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev) +{ + adev->gmc.vm_fault.num_types = 1; + adev->gmc.vm_fault.funcs = &gmc_v7_0_irq_funcs; +} + +const struct amdgpu_ip_block_version gmc_v7_0_ip_block = { + .type = AMD_IP_BLOCK_TYPE_GMC, + .major = 7, + .minor = 0, + .rev = 0, + .funcs = &gmc_v7_0_ip_funcs, +}; + +const struct amdgpu_ip_block_version gmc_v7_4_ip_block = { + .type = AMD_IP_BLOCK_TYPE_GMC, + .major = 7, + .minor = 4, + .rev = 0, + .funcs = &gmc_v7_0_ip_funcs, +}; |