diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c | 119 |
1 files changed, 88 insertions, 31 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c b/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c index 66852de410c82..97d5423c56732 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c @@ -275,23 +275,35 @@ * for FLAT_* / S_LOAD operations. */ -#define MAKE_GPUVM_APP_BASE(gpu_num) \ +#define MAKE_GPUVM_APP_BASE_VI(gpu_num) \ (((uint64_t)(gpu_num) << 61) + 0x1000000000000L) #define MAKE_GPUVM_APP_LIMIT(base, size) \ (((uint64_t)(base) & 0xFFFFFF0000000000UL) + (size) - 1) -#define MAKE_SCRATCH_APP_BASE() \ +#define MAKE_SCRATCH_APP_BASE_VI() \ (((uint64_t)(0x1UL) << 61) + 0x100000000L) #define MAKE_SCRATCH_APP_LIMIT(base) \ (((uint64_t)base & 0xFFFFFFFF00000000UL) | 0xFFFFFFFF) -#define MAKE_LDS_APP_BASE() \ +#define MAKE_LDS_APP_BASE_VI() \ (((uint64_t)(0x1UL) << 61) + 0x0) #define MAKE_LDS_APP_LIMIT(base) \ (((uint64_t)(base) & 0xFFFFFFFF00000000UL) | 0xFFFFFFFF) +/* On GFXv9 the LDS and scratch apertures are programmed independently + * using the high 16 bits of the 64-bit virtual address. They must be + * in the hole, which will be the case as long as the high 16 bits are + * not 0. + * + * The aperture sizes are still 4GB implicitly. + * + * A GPUVM aperture is not applicable on GFXv9. + */ +#define MAKE_LDS_APP_BASE_V9() ((uint64_t)(0x1UL) << 48) +#define MAKE_SCRATCH_APP_BASE_V9() ((uint64_t)(0x2UL) << 48) + /* User mode manages most of the SVM aperture address space. The low * 16MB are reserved for kernel use (CWSR trap handler and kernel IB * for now). @@ -300,6 +312,55 @@ #define SVM_CWSR_BASE (SVM_USER_BASE - KFD_CWSR_TBA_TMA_SIZE) #define SVM_IB_BASE (SVM_CWSR_BASE - PAGE_SIZE) +static void kfd_init_apertures_vi(struct kfd_process_device *pdd, uint8_t id) +{ + /* + * node id couldn't be 0 - the three MSB bits of + * aperture shoudn't be 0 + */ + pdd->lds_base = MAKE_LDS_APP_BASE_VI(); + pdd->lds_limit = MAKE_LDS_APP_LIMIT(pdd->lds_base); + + if (!pdd->dev->device_info->needs_iommu_device) { + /* dGPUs: SVM aperture starting at 0 + * with small reserved space for kernel. + * Set them to CANONICAL addresses. + */ + pdd->gpuvm_base = SVM_USER_BASE; + pdd->gpuvm_limit = + pdd->dev->shared_resources.gpuvm_size - 1; + } else { + /* set them to non CANONICAL addresses, and no SVM is + * allocated. + */ + pdd->gpuvm_base = MAKE_GPUVM_APP_BASE_VI(id + 1); + pdd->gpuvm_limit = MAKE_GPUVM_APP_LIMIT(pdd->gpuvm_base, + pdd->dev->shared_resources.gpuvm_size); + } + + pdd->scratch_base = MAKE_SCRATCH_APP_BASE_VI(); + pdd->scratch_limit = MAKE_SCRATCH_APP_LIMIT(pdd->scratch_base); +} + +static void kfd_init_apertures_v9(struct kfd_process_device *pdd, uint8_t id) +{ + pdd->lds_base = MAKE_LDS_APP_BASE_V9(); + pdd->lds_limit = MAKE_LDS_APP_LIMIT(pdd->lds_base); + + /* Raven needs SVM to support graphic handle, etc. Leave the small + * reserved space before SVM on Raven as well, even though we don't + * have to. + * Set gpuvm_base and gpuvm_limit to CANONICAL addresses so that they + * are used in Thunk to reserve SVM. + */ + pdd->gpuvm_base = SVM_USER_BASE; + pdd->gpuvm_limit = + pdd->dev->shared_resources.gpuvm_size - 1; + + pdd->scratch_base = MAKE_SCRATCH_APP_BASE_V9(); + pdd->scratch_limit = MAKE_SCRATCH_APP_LIMIT(pdd->scratch_base); +} + int kfd_init_apertures(struct kfd_process *process) { uint8_t id = 0; @@ -307,9 +368,7 @@ int kfd_init_apertures(struct kfd_process *process) struct kfd_process_device *pdd; /*Iterating over all devices*/ - while (kfd_topology_enum_kfd_devices(id, &dev) == 0 && - id < NUM_OF_SUPPORTED_GPUS) { - + while (kfd_topology_enum_kfd_devices(id, &dev) == 0) { if (!dev) { id++; /* Skip non GPU devices */ continue; @@ -318,7 +377,7 @@ int kfd_init_apertures(struct kfd_process *process) pdd = kfd_create_process_device_data(dev, process); if (!pdd) { pr_err("Failed to create process device data\n"); - return -1; + return -ENOMEM; } /* * For 64 bit process apertures will be statically reserved in @@ -330,32 +389,30 @@ int kfd_init_apertures(struct kfd_process *process) pdd->gpuvm_base = pdd->gpuvm_limit = 0; pdd->scratch_base = pdd->scratch_limit = 0; } else { - /* Same LDS and scratch apertures can be used - * on all GPUs. This allows using more dGPUs - * than placement options for apertures. - */ - pdd->lds_base = MAKE_LDS_APP_BASE(); - pdd->lds_limit = MAKE_LDS_APP_LIMIT(pdd->lds_base); - - pdd->scratch_base = MAKE_SCRATCH_APP_BASE(); - pdd->scratch_limit = - MAKE_SCRATCH_APP_LIMIT(pdd->scratch_base); + switch (dev->device_info->asic_family) { + case CHIP_KAVERI: + case CHIP_HAWAII: + case CHIP_CARRIZO: + case CHIP_TONGA: + case CHIP_FIJI: + case CHIP_POLARIS10: + case CHIP_POLARIS11: + kfd_init_apertures_vi(pdd, id); + break; + case CHIP_VEGA10: + case CHIP_RAVEN: + kfd_init_apertures_v9(pdd, id); + break; + default: + WARN(1, "Unexpected ASIC family %u", + dev->device_info->asic_family); + return -EINVAL; + } - if (dev->device_info->needs_iommu_device) { - /* APUs: GPUVM aperture in - * non-canonical address space - */ - pdd->gpuvm_base = MAKE_GPUVM_APP_BASE(id + 1); - pdd->gpuvm_limit = MAKE_GPUVM_APP_LIMIT( - pdd->gpuvm_base, - dev->shared_resources.gpuvm_size); - } else { - /* dGPUs: SVM aperture starting at 0 - * with small reserved space for kernel + if (!dev->device_info->needs_iommu_device) { + /* dGPUs: the reserved space for kernel + * before SVM */ - pdd->gpuvm_base = SVM_USER_BASE; - pdd->gpuvm_limit = - dev->shared_resources.gpuvm_size - 1; pdd->qpd.cwsr_base = SVM_CWSR_BASE; pdd->qpd.ib_base = SVM_IB_BASE; } |