diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index f25275abf408..46218b36dc9e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -153,6 +153,36 @@ bool amdgpu_device_is_px(struct drm_device *dev) return false; } +/** + * VRAM access helper functions. + * + * amdgpu_device_vram_access - read/write a buffer in vram + * + * @adev: amdgpu_device pointer + * @pos: offset of the buffer in vram + * @buf: virtual address of the buffer in system memory + * @size: read/write size, sizeof(@buf) must > @size + * @write: true - write to vram, otherwise - read from vram + */ +void amdgpu_device_vram_access(struct amdgpu_device *adev, loff_t pos, + uint32_t *buf, size_t size, bool write) +{ + uint64_t last; + unsigned long flags; + + last = size - 4; + for (last += pos; pos <= last; pos += 4) { + spin_lock_irqsave(&adev->mmio_idx_lock, flags); + WREG32_NO_KIQ(mmMM_INDEX, ((uint32_t)pos) | 0x80000000); + WREG32_NO_KIQ(mmMM_INDEX_HI, pos >> 31); + if (write) + WREG32_NO_KIQ(mmMM_DATA, *buf++); + else + *buf++ = RREG32_NO_KIQ(mmMM_DATA); + spin_unlock_irqrestore(&adev->mmio_idx_lock, flags); + } +} + /* * MMIO register access helper functions. */ @@ -2622,8 +2652,11 @@ static int amdgpu_device_get_job_timeout_settings(struct amdgpu_device *adev) * There is only one value specified and * it should apply to all non-compute jobs. */ - if (index == 1) + if (index == 1) { adev->sdma_timeout = adev->video_timeout = adev->gfx_timeout; + if (amdgpu_sriov_vf(adev) || amdgpu_passthrough(adev)) + adev->compute_timeout = adev->gfx_timeout; + } } return ret; @@ -3168,15 +3201,11 @@ int amdgpu_device_suspend(struct drm_device *dev, bool suspend, bool fbcon) */ amdgpu_bo_evict_vram(adev); - pci_save_state(dev->pdev); if (suspend) { + pci_save_state(dev->pdev); /* 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"); } return 0; |