diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 131 |
1 files changed, 108 insertions, 23 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c index f5725336a5f2..bbede09983e1 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c @@ -30,6 +30,8 @@ #include "hdp/hdp_5_0_0_sh_mask.h" #include "gc/gc_10_1_0_sh_mask.h" #include "mmhub/mmhub_2_0_0_sh_mask.h" +#include "athub/athub_2_0_0_sh_mask.h" +#include "athub/athub_2_0_0_offset.h" #include "dcn/dcn_2_0_0_offset.h" #include "dcn/dcn_2_0_0_sh_mask.h" #include "oss/osssys_5_0_0_offset.h" @@ -37,6 +39,7 @@ #include "navi10_enum.h" #include "soc15.h" +#include "soc15d.h" #include "soc15_common.h" #include "nbio_v2_3.h" @@ -234,6 +237,19 @@ static bool gmc_v10_0_use_invalidate_semaphore(struct amdgpu_device *adev, (!amdgpu_sriov_vf(adev))); } +static bool gmc_v10_0_get_atc_vmid_pasid_mapping_info( + struct amdgpu_device *adev, + uint8_t vmid, uint16_t *p_pasid) +{ + uint32_t value; + + value = RREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING) + + vmid); + *p_pasid = value & ATC_VMID0_PASID_MAPPING__PASID_MASK; + + return !!(value & ATC_VMID0_PASID_MAPPING__VALID_MASK); +} + /* * GART * VMID 0 is the physical GPU addresses as used by the kernel. @@ -380,6 +396,63 @@ error_alloc: DRM_ERROR("Error flushing GPU TLB using the SDMA (%d)!\n", r); } +/** + * gmc_v10_0_flush_gpu_tlb_pasid - tlb flush via pasid + * + * @adev: amdgpu_device pointer + * @pasid: pasid to be flush + * + * Flush the TLB for the requested pasid. + */ +static int gmc_v10_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev, + uint16_t pasid, uint32_t flush_type, + bool all_hub) +{ + int vmid, i; + signed long r; + uint32_t seq; + uint16_t queried_pasid; + bool ret; + struct amdgpu_ring *ring = &adev->gfx.kiq.ring; + struct amdgpu_kiq *kiq = &adev->gfx.kiq; + + if (amdgpu_emu_mode == 0 && ring->sched.ready) { + spin_lock(&adev->gfx.kiq.ring_lock); + amdgpu_ring_alloc(ring, kiq->pmf->invalidate_tlbs_size); + kiq->pmf->kiq_invalidate_tlbs(ring, + pasid, flush_type, all_hub); + amdgpu_fence_emit_polling(ring, &seq); + amdgpu_ring_commit(ring); + spin_unlock(&adev->gfx.kiq.ring_lock); + r = amdgpu_fence_wait_polling(ring, seq, adev->usec_timeout); + if (r < 1) { + DRM_ERROR("wait for kiq fence error: %ld.\n", r); + return -ETIME; + } + + return 0; + } + + for (vmid = 1; vmid < 16; vmid++) { + + ret = gmc_v10_0_get_atc_vmid_pasid_mapping_info(adev, vmid, + &queried_pasid); + if (ret && queried_pasid == pasid) { + if (all_hub) { + for (i = 0; i < adev->num_vmhubs; i++) + gmc_v10_0_flush_gpu_tlb(adev, vmid, + i, 0); + } else { + gmc_v10_0_flush_gpu_tlb(adev, vmid, + AMDGPU_GFXHUB_0, 0); + } + break; + } + } + + return 0; +} + static uint64_t gmc_v10_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring, unsigned vmid, uint64_t pd_addr) { @@ -531,6 +604,7 @@ static void gmc_v10_0_get_vm_pte(struct amdgpu_device *adev, static const struct amdgpu_gmc_funcs gmc_v10_0_gmc_funcs = { .flush_gpu_tlb = gmc_v10_0_flush_gpu_tlb, + .flush_gpu_tlb_pasid = gmc_v10_0_flush_gpu_tlb_pasid, .emit_flush_gpu_tlb = gmc_v10_0_emit_flush_gpu_tlb, .emit_pasid_mapping = gmc_v10_0_emit_pasid_mapping, .map_mtype = gmc_v10_0_map_mtype, @@ -564,22 +638,18 @@ static int gmc_v10_0_early_init(void *handle) static int gmc_v10_0_late_init(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; - unsigned vm_inv_eng[AMDGPU_MAX_VMHUBS] = { 4, 4 }; - unsigned i; - - for(i = 0; i < adev->num_rings; ++i) { - struct amdgpu_ring *ring = adev->rings[i]; - unsigned vmhub = ring->funcs->vmhub; + int r; - ring->vm_inv_eng = vm_inv_eng[vmhub]++; - dev_info(adev->dev, "ring %u(%s) uses VM inv eng %u on hub %u\n", - ring->idx, ring->name, ring->vm_inv_eng, - ring->funcs->vmhub); - } + /* + * Can't free the stolen VGA memory when it might be used for memory + * training again. + */ + if (!adev->fw_vram_usage.mem_train_support) + amdgpu_bo_late_init(adev); - /* Engine 17 is used for GART flushes */ - for(i = 0; i < AMDGPU_MAX_VMHUBS; ++i) - BUG_ON(vm_inv_eng[i] > 17); + r = amdgpu_gmc_allocate_vm_inv_eng(adev); + if (r) + return r; return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0); } @@ -731,6 +801,10 @@ static int gmc_v10_0_sw_init(void *handle) r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VMC, VMC_1_0__SRCID__VM_FAULT, &adev->gmc.vm_fault); + + if (r) + return r; + r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_UTCL2, UTCL2_1_0__SRCID__FAULT, &adev->gmc.vm_fault); @@ -743,15 +817,6 @@ static int gmc_v10_0_sw_init(void *handle) */ adev->gmc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */ - /* - * Reserve 8M stolen memory for navi10 like vega10 - * TODO: will check if it's really needed on asic. - */ - if (amdgpu_emu_mode == 1) - adev->gmc.stolen_size = 0; - else - adev->gmc.stolen_size = 9 * 1024 *1024; - r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(44)); if (r) { printk(KERN_WARNING "amdgpu: No suitable DMA available.\n"); @@ -764,6 +829,19 @@ static int gmc_v10_0_sw_init(void *handle) adev->gmc.stolen_size = gmc_v10_0_get_vbios_fb_size(adev); + /* + * In dual GPUs scenario, stolen_size is assigned to zero on the + * secondary GPU, since there is no pre-OS console using that memory. + * Then the bottom region of VRAM was allocated as GTT, unfortunately a + * small region of bottom VRAM was encroached by UMC firmware during + * GDDR6 BIST training, this cause page fault. + * The page fault can be fixed by forcing stolen_size to 3MB, then the + * bottom region of VRAM was allocated as stolen memory, GTT corruption + * avoid. + */ + adev->gmc.stolen_size = max(adev->gmc.stolen_size, + AMDGPU_STOLEN_BIST_TRAINING_DEFAULT_SIZE); + /* Memory manager */ r = amdgpu_bo_init(adev); if (r) @@ -803,6 +881,13 @@ static void gmc_v10_0_gart_fini(struct amdgpu_device *adev) static int gmc_v10_0_sw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; + void *stolen_vga_buf; + + /* + * Free the stolen memory if it wasn't already freed in late_init + * because of memory training. + */ + amdgpu_bo_free_kernel(&adev->stolen_vga_memory, NULL, &stolen_vga_buf); amdgpu_vm_manager_fini(adev); gmc_v10_0_gart_fini(adev); |