diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 58 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vi.c | 3 |
4 files changed, 75 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 121b8440cf40..6eabeaaa3c30 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -94,6 +94,11 @@ uint32_t amdgpu_mm_rreg(struct amdgpu_device *adev, uint32_t reg, { uint32_t ret; + if (amdgpu_sriov_runtime(adev)) { + BUG_ON(in_interrupt()); + return amdgpu_virt_kiq_rreg(adev, reg); + } + if ((reg * 4) < adev->rmmio_size && !always_indirect) ret = readl(((void __iomem *)adev->rmmio) + (reg * 4)); else { @@ -113,6 +118,11 @@ void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v, { trace_amdgpu_mm_wreg(adev->pdev->device, reg, v); + if (amdgpu_sriov_runtime(adev)) { + BUG_ON(in_interrupt()); + return amdgpu_virt_kiq_wreg(adev, reg, v); + } + if ((reg * 4) < adev->rmmio_size && !always_indirect) writel(v, ((void __iomem *)adev->rmmio) + (reg * 4)); else { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index cfc47214161a..00583baab132 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -91,3 +91,61 @@ int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm) ttm_eu_backoff_reservation(&ticket, &list); return 0; } + +void amdgpu_virt_init_setting(struct amdgpu_device *adev) +{ + mutex_init(&adev->virt.lock); +} + +uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device *adev, uint32_t reg) +{ + signed long r; + uint32_t val; + struct dma_fence *f; + struct amdgpu_kiq *kiq = &adev->gfx.kiq; + struct amdgpu_ring *ring = &kiq->ring; + + BUG_ON(!ring->funcs->emit_rreg); + + mutex_lock(&adev->virt.lock); + amdgpu_ring_alloc(ring, 32); + amdgpu_ring_emit_hdp_flush(ring); + amdgpu_ring_emit_rreg(ring, reg); + amdgpu_ring_emit_hdp_invalidate(ring); + amdgpu_fence_emit(ring, &f); + amdgpu_ring_commit(ring); + mutex_unlock(&adev->virt.lock); + + r = dma_fence_wait(f, false); + if (r) + DRM_ERROR("wait for kiq fence error: %ld.\n", r); + dma_fence_put(f); + + val = adev->wb.wb[adev->virt.reg_val_offs]; + + return val; +} + +void amdgpu_virt_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v) +{ + signed long r; + struct dma_fence *f; + struct amdgpu_kiq *kiq = &adev->gfx.kiq; + struct amdgpu_ring *ring = &kiq->ring; + + BUG_ON(!ring->funcs->emit_wreg); + + mutex_lock(&adev->virt.lock); + amdgpu_ring_alloc(ring, 32); + amdgpu_ring_emit_hdp_flush(ring); + amdgpu_ring_emit_wreg(ring, reg, v); + amdgpu_ring_emit_hdp_invalidate(ring); + amdgpu_fence_emit(ring, &f); + amdgpu_ring_commit(ring); + mutex_unlock(&adev->virt.lock); + + r = dma_fence_wait(f, false); + if (r) + DRM_ERROR("wait for kiq fence error: %ld.\n", r); + dma_fence_put(f); +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h index 8bb9e5d307cb..433f559bc4a1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h @@ -36,6 +36,7 @@ struct amdgpu_virt { struct amdgpu_bo *csa_obj; uint64_t csa_vmid0_addr; uint32_t reg_val_offs; + struct mutex lock; }; #define AMDGPU_CSA_SIZE (8 * 1024) @@ -68,5 +69,8 @@ static inline bool is_virtual_machine(void) struct amdgpu_vm; int amdgpu_allocate_static_csa(struct amdgpu_device *adev); int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm); +void amdgpu_virt_init_setting(struct amdgpu_device *adev); +uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device *adev, uint32_t reg); +void amdgpu_virt_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v); #endif diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index 95029e2e2650..abdb80b812a6 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -921,6 +921,9 @@ static int vi_common_early_init(void *handle) (amdgpu_ip_block_mask & (1 << AMD_IP_BLOCK_TYPE_SMC))) smc_enabled = true; + if (amdgpu_sriov_vf(adev)) + amdgpu_virt_init_setting(adev); + adev->rev_id = vi_get_rev_id(adev); adev->external_rev_id = 0xFF; switch (adev->asic_type) { |