diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c | 48 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 7 |
3 files changed, 39 insertions, 26 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index 7b57995..f563acb 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -41,6 +41,7 @@ static const struct kfd_device_info kaveri_device_info = { .max_pasid_bits = 16, /* max num of queues for KV.TODO should be a dynamic value */ .max_no_of_hqd = 24, + .doorbell_size = 4, .ih_ring_entry_size = 4 * sizeof(uint32_t), .event_interrupt_class = &event_interrupt_class_cik, .num_of_watch_points = 4, @@ -55,6 +56,7 @@ static const struct kfd_device_info carrizo_device_info = { .max_pasid_bits = 16, /* max num of queues for CZ.TODO should be a dynamic value */ .max_no_of_hqd = 24, + .doorbell_size = 4, .ih_ring_entry_size = 4 * sizeof(uint32_t), .event_interrupt_class = &event_interrupt_class_cik, .num_of_watch_points = 4, @@ -70,6 +72,7 @@ static const struct kfd_device_info hawaii_device_info = { .max_pasid_bits = 16, /* max num of queues for KV.TODO should be a dynamic value */ .max_no_of_hqd = 24, + .doorbell_size = 4, .ih_ring_entry_size = 4 * sizeof(uint32_t), .event_interrupt_class = &event_interrupt_class_cik, .num_of_watch_points = 4, @@ -83,6 +86,7 @@ static const struct kfd_device_info tonga_device_info = { .asic_family = CHIP_TONGA, .max_pasid_bits = 16, .max_no_of_hqd = 24, + .doorbell_size = 4, .ih_ring_entry_size = 4 * sizeof(uint32_t), .event_interrupt_class = &event_interrupt_class_cik, .num_of_watch_points = 4, @@ -96,6 +100,7 @@ static const struct kfd_device_info tonga_vf_device_info = { .asic_family = CHIP_TONGA, .max_pasid_bits = 16, .max_no_of_hqd = 24, + .doorbell_size = 4, .ih_ring_entry_size = 4 * sizeof(uint32_t), .event_interrupt_class = &event_interrupt_class_cik, .num_of_watch_points = 4, @@ -109,6 +114,7 @@ static const struct kfd_device_info fiji_device_info = { .asic_family = CHIP_FIJI, .max_pasid_bits = 16, .max_no_of_hqd = 24, + .doorbell_size = 4, .ih_ring_entry_size = 4 * sizeof(uint32_t), .event_interrupt_class = &event_interrupt_class_cik, .num_of_watch_points = 4, @@ -122,6 +128,7 @@ static const struct kfd_device_info fiji_vf_device_info = { .asic_family = CHIP_FIJI, .max_pasid_bits = 16, .max_no_of_hqd = 24, + .doorbell_size = 4, .ih_ring_entry_size = 4 * sizeof(uint32_t), .event_interrupt_class = &event_interrupt_class_cik, .num_of_watch_points = 4, @@ -136,6 +143,7 @@ static const struct kfd_device_info polaris10_device_info = { .asic_family = CHIP_POLARIS10, .max_pasid_bits = 16, .max_no_of_hqd = 24, + .doorbell_size = 4, .ih_ring_entry_size = 4 * sizeof(uint32_t), .event_interrupt_class = &event_interrupt_class_cik, .num_of_watch_points = 4, @@ -149,6 +157,7 @@ static const struct kfd_device_info polaris10_vf_device_info = { .asic_family = CHIP_POLARIS10, .max_pasid_bits = 16, .max_no_of_hqd = 24, + .doorbell_size = 4, .ih_ring_entry_size = 4 * sizeof(uint32_t), .event_interrupt_class = &event_interrupt_class_cik, .num_of_watch_points = 4, @@ -162,6 +171,7 @@ static const struct kfd_device_info polaris11_device_info = { .asic_family = CHIP_POLARIS11, .max_pasid_bits = 16, .max_no_of_hqd = 24, + .doorbell_size = 4, .ih_ring_entry_size = 4 * sizeof(uint32_t), .event_interrupt_class = &event_interrupt_class_cik, .num_of_watch_points = 4, diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c index ebb4da14..4840314 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c @@ -33,7 +33,6 @@ static DEFINE_IDA(doorbell_ida); static unsigned int max_doorbell_slices; -#define KFD_SIZE_OF_DOORBELL_IN_BYTES 4 /* * Each device exposes a doorbell aperture, a PCI MMIO aperture that @@ -50,9 +49,9 @@ static unsigned int max_doorbell_slices; */ /* # of doorbell bytes allocated for each process. */ -static inline size_t doorbell_process_allocation(void) +static size_t kfd_doorbell_process_slice(struct kfd_dev *kfd) { - return roundup(KFD_SIZE_OF_DOORBELL_IN_BYTES * + return roundup(kfd->device_info->doorbell_size * KFD_MAX_NUM_OF_QUEUES_PER_PROCESS, PAGE_SIZE); } @@ -72,16 +71,16 @@ int kfd_doorbell_init(struct kfd_dev *kfd) doorbell_start_offset = roundup(kfd->shared_resources.doorbell_start_offset, - doorbell_process_allocation()); + kfd_doorbell_process_slice(kfd)); doorbell_aperture_size = rounddown(kfd->shared_resources.doorbell_aperture_size, - doorbell_process_allocation()); + kfd_doorbell_process_slice(kfd)); if (doorbell_aperture_size > doorbell_start_offset) doorbell_process_limit = (doorbell_aperture_size - doorbell_start_offset) / - doorbell_process_allocation(); + kfd_doorbell_process_slice(kfd); else return -ENOSPC; @@ -95,7 +94,7 @@ int kfd_doorbell_init(struct kfd_dev *kfd) kfd->doorbell_id_offset = doorbell_start_offset / sizeof(u32); kfd->doorbell_kernel_ptr = ioremap(kfd->doorbell_base, - doorbell_process_allocation()); + kfd_doorbell_process_slice(kfd)); if (!kfd->doorbell_kernel_ptr) return -ENOMEM; @@ -132,16 +131,16 @@ int kfd_doorbell_mmap(struct kfd_process *process, struct vm_area_struct *vma) phys_addr_t address; struct kfd_dev *dev; + /* Find kfd device according to gpu id */ + dev = kfd_device_by_id(vma->vm_pgoff); + if (!dev) + return -EINVAL; + /* * For simplicitly we only allow mapping of the entire doorbell * allocation of a single device & process. */ - if (vma->vm_end - vma->vm_start != doorbell_process_allocation()) - return -EINVAL; - - /* Find kfd device according to gpu id */ - dev = kfd_device_by_id(vma->vm_pgoff); - if (!dev) + if (vma->vm_end - vma->vm_start != kfd_doorbell_process_slice(dev)) return -EINVAL; /* Calculate physical address of doorbell */ @@ -158,19 +157,19 @@ int kfd_doorbell_mmap(struct kfd_process *process, struct vm_area_struct *vma) " vm_flags == 0x%04lX\n" " size == 0x%04lX\n", (unsigned long long) vma->vm_start, address, vma->vm_flags, - doorbell_process_allocation()); + kfd_doorbell_process_slice(dev)); return io_remap_pfn_range(vma, vma->vm_start, address >> PAGE_SHIFT, - doorbell_process_allocation(), + kfd_doorbell_process_slice(dev), vma->vm_page_prot); } /* get kernel iomem pointer for a doorbell */ -u32 __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, +void __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, unsigned int *doorbell_off) { u32 inx; @@ -185,6 +184,8 @@ u32 __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, if (inx >= KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) return NULL; + inx *= kfd->device_info->doorbell_size / sizeof(u32); + /* * Calculating the kernel doorbell offset using the first * doorbell page. @@ -210,7 +211,7 @@ void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr) mutex_unlock(&kfd->doorbell_mutex); } -inline void write_kernel_doorbell(u32 __iomem *db, u32 value) +void write_kernel_doorbell(void __iomem *db, u32 value) { if (db) { writel(value, db); @@ -228,20 +229,21 @@ unsigned int kfd_queue_id_to_doorbell(struct kfd_dev *kfd, { /* * doorbell_id_offset accounts for doorbells taken by KGD. - * index * doorbell_process_allocation/sizeof(u32) adjusts to - * the process's doorbells. + * index * kfd_doorbell_process_slice/sizeof(u32) adjusts to + * the process's doorbells. The offset returned is in dword + * units regardless of the ASIC-dependent doorbell size. */ return kfd->doorbell_id_offset + process->doorbell_index - * doorbell_process_allocation() / sizeof(u32) + - queue_id; + * kfd_doorbell_process_slice(kfd) / sizeof(u32) + + queue_id * kfd->device_info->doorbell_size / sizeof(u32); } uint64_t kfd_get_number_elems(struct kfd_dev *kfd) { uint64_t num_of_elems = (kfd->shared_resources.doorbell_aperture_size - kfd->shared_resources.doorbell_start_offset) / - doorbell_process_allocation() + 1; + kfd_doorbell_process_slice(kfd) + 1; return num_of_elems; @@ -251,7 +253,7 @@ phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev, struct kfd_process *process) { return dev->doorbell_base + - process->doorbell_index * doorbell_process_allocation(); + process->doorbell_index * kfd_doorbell_process_slice(dev); } int kfd_alloc_process_doorbells(struct kfd_process *process) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index 4d5c49e..d9c0fe12 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -160,6 +160,7 @@ struct kfd_device_info { const struct kfd_event_interrupt_class *event_interrupt_class; unsigned int max_pasid_bits; unsigned int max_no_of_hqd; + unsigned int doorbell_size; size_t ih_ring_entry_size; uint8_t num_of_watch_points; uint16_t mqd_size_aligned; @@ -364,7 +365,7 @@ struct queue_properties { uint32_t queue_percent; uint32_t *read_ptr; uint32_t *write_ptr; - uint32_t __iomem *doorbell_ptr; + void __iomem *doorbell_ptr; uint32_t doorbell_off; bool is_interop; bool is_evicted; @@ -728,11 +729,11 @@ void kfd_pasid_free(unsigned int pasid); int kfd_doorbell_init(struct kfd_dev *kfd); void kfd_doorbell_fini(struct kfd_dev *kfd); int kfd_doorbell_mmap(struct kfd_process *process, struct vm_area_struct *vma); -u32 __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, +void __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, unsigned int *doorbell_off); void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr); u32 read_kernel_doorbell(u32 __iomem *db); -void write_kernel_doorbell(u32 __iomem *db, u32 value); +void write_kernel_doorbell(void __iomem *db, u32 value); unsigned int kfd_queue_id_to_doorbell(struct kfd_dev *kfd, struct kfd_process *process, unsigned int queue_id); |
