diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 18 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vce_v1_0.c | 55 |
4 files changed, 75 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c index 0760e70402ec..895c1e4c6747 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c @@ -284,6 +284,7 @@ int amdgpu_gtt_mgr_init(struct amdgpu_device *adev, uint64_t gtt_size) ttm_resource_manager_init(man, &adev->mman.bdev, gtt_size); start = AMDGPU_GTT_MAX_TRANSFER_SIZE * AMDGPU_GTT_NUM_TRANSFER_WINDOWS; + start += amdgpu_vce_required_gart_pages(adev); size = (adev->gmc.gart_size >> PAGE_SHIFT) - start; drm_mm_init(&mgr->mm, start, size); spin_lock_init(&mgr->lock); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c index eb4a15db2ef2..a7d8f1ce6ac2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c @@ -451,6 +451,24 @@ void amdgpu_vce_free_handles(struct amdgpu_device *adev, struct drm_file *filp) } /** + * amdgpu_vce_required_gart_pages() - gets number of GART pages required by VCE + * + * @adev: amdgpu_device pointer + * + * Returns how many GART pages we need before GTT for the VCE IP block. + * For VCE1, see vce_v1_0_ensure_vcpu_bo_32bit_addr for details. + * For VCE2+, this is not needed so return zero. + */ +u32 amdgpu_vce_required_gart_pages(struct amdgpu_device *adev) +{ + /* VCE IP block not added yet, so can't use amdgpu_ip_version */ + if (adev->family == AMDGPU_FAMILY_SI) + return 512; + + return 0; +} + +/** * amdgpu_vce_get_create_msg - generate a VCE create msg * * @ring: ring we should submit the msg to diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h index 050783802623..1c3464ce5037 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h @@ -61,6 +61,7 @@ int amdgpu_vce_entity_init(struct amdgpu_device *adev, struct amdgpu_ring *ring) int amdgpu_vce_suspend(struct amdgpu_device *adev); int amdgpu_vce_resume(struct amdgpu_device *adev); void amdgpu_vce_free_handles(struct amdgpu_device *adev, struct drm_file *filp); +u32 amdgpu_vce_required_gart_pages(struct amdgpu_device *adev); int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, struct amdgpu_job *job, struct amdgpu_ib *ib); int amdgpu_vce_ring_parse_cs_vm(struct amdgpu_cs_parser *p, diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v1_0.c index bf9f943852cb..9ae424618556 100644 --- a/drivers/gpu/drm/amd/amdgpu/vce_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vce_v1_0.c @@ -34,6 +34,7 @@ #include "amdgpu.h" #include "amdgpu_vce.h" +#include "amdgpu_gart.h" #include "sid.h" #include "vce_v1_0.h" #include "vce/vce_1_0_d.h" @@ -46,6 +47,11 @@ #define VCE_V1_0_DATA_SIZE (7808 * (AMDGPU_MAX_VCE_HANDLES + 1)) #define VCE_STATUS_VCPU_REPORT_FW_LOADED_MASK 0x02 +#define VCE_V1_0_GART_PAGE_START \ + (AMDGPU_GTT_MAX_TRANSFER_SIZE * AMDGPU_GTT_NUM_TRANSFER_WINDOWS) +#define VCE_V1_0_GART_ADDR_START \ + (VCE_V1_0_GART_PAGE_START * AMDGPU_GPU_PAGE_SIZE) + static void vce_v1_0_set_ring_funcs(struct amdgpu_device *adev); static void vce_v1_0_set_irq_funcs(struct amdgpu_device *adev); @@ -513,6 +519,49 @@ static int vce_v1_0_early_init(struct amdgpu_ip_block *ip_block) return 0; } +/** + * vce_v1_0_ensure_vcpu_bo_32bit_addr() - ensure the VCPU BO has a 32-bit address + * + * @adev: amdgpu_device pointer + * + * Due to various hardware limitations, the VCE1 requires + * the VCPU BO to be in the low 32 bit address range. + * Ensure that the VCPU BO has a 32-bit GPU address, + * or return an error code when that isn't possible. + * + * To accomodate that, we put GART to the LOW address range + * and reserve some GART pages where we map the VCPU BO, + * so that it gets a 32-bit address. + */ +static int vce_v1_0_ensure_vcpu_bo_32bit_addr(struct amdgpu_device *adev) +{ + u64 gpu_addr = amdgpu_bo_gpu_offset(adev->vce.vcpu_bo); + u64 bo_size = amdgpu_bo_size(adev->vce.vcpu_bo); + u64 max_vcpu_bo_addr = 0xffffffff - bo_size; + u64 num_pages = ALIGN(bo_size, AMDGPU_GPU_PAGE_SIZE) / AMDGPU_GPU_PAGE_SIZE; + u64 pa = amdgpu_gmc_vram_pa(adev, adev->vce.vcpu_bo); + u64 flags = AMDGPU_PTE_READABLE | AMDGPU_PTE_WRITEABLE | AMDGPU_PTE_VALID; + + /* + * Check if the VCPU BO already has a 32-bit address. + * Eg. if MC is configured to put VRAM in the low address range. + */ + if (gpu_addr <= max_vcpu_bo_addr) + return 0; + + /* Check if we can map the VCPU BO in GART to a 32-bit address. */ + if (adev->gmc.gart_start + VCE_V1_0_GART_ADDR_START > max_vcpu_bo_addr) + return -EINVAL; + + amdgpu_gart_map_vram_range(adev, pa, VCE_V1_0_GART_PAGE_START, + num_pages, flags, adev->gart.ptr); + adev->vce.gpu_addr = adev->gmc.gart_start + VCE_V1_0_GART_ADDR_START; + if (adev->vce.gpu_addr > max_vcpu_bo_addr) + return -EINVAL; + + return 0; +} + static int vce_v1_0_sw_init(struct amdgpu_ip_block *ip_block) { struct amdgpu_device *adev = ip_block->adev; @@ -534,6 +583,9 @@ static int vce_v1_0_sw_init(struct amdgpu_ip_block *ip_block) r = vce_v1_0_load_fw_signature(adev); if (r) return r; + r = vce_v1_0_ensure_vcpu_bo_32bit_addr(adev); + if (r) + return r; for (i = 0; i < adev->vce.num_rings; i++) { enum amdgpu_ring_priority_level hw_prio = amdgpu_vce_get_ring_prio(i); @@ -649,6 +701,9 @@ static int vce_v1_0_resume(struct amdgpu_ip_block *ip_block) r = vce_v1_0_load_fw_signature(adev); if (r) return r; + r = vce_v1_0_ensure_vcpu_bo_32bit_addr(adev); + if (r) + return r; return vce_v1_0_hw_init(ip_block); } |