diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c index 8e0c00b9555e..768d153acff4 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c @@ -31,9 +31,6 @@ * kernel queues using the first doorbell page reserved for the kernel. */ -static DEFINE_IDA(doorbell_ida); -static unsigned int max_doorbell_slices; - /* * Each device exposes a doorbell aperture, a PCI MMIO aperture that * receives 32-bit writes that are passed to queues as wptr values. @@ -84,9 +81,9 @@ int kfd_doorbell_init(struct kfd_dev *kfd) else return -ENOSPC; - if (!max_doorbell_slices || - doorbell_process_limit < max_doorbell_slices) - max_doorbell_slices = doorbell_process_limit; + if (!kfd->max_doorbell_slices || + doorbell_process_limit < kfd->max_doorbell_slices) + kfd->max_doorbell_slices = doorbell_process_limit; kfd->doorbell_base = kfd->shared_resources.doorbell_physical_address + doorbell_start_offset; @@ -130,6 +127,7 @@ int kfd_doorbell_mmap(struct kfd_dev *dev, struct kfd_process *process, struct vm_area_struct *vma) { phys_addr_t address; + struct kfd_process_device *pdd; /* * For simplicitly we only allow mapping of the entire doorbell @@ -138,9 +136,12 @@ int kfd_doorbell_mmap(struct kfd_dev *dev, struct kfd_process *process, if (vma->vm_end - vma->vm_start != kfd_doorbell_process_slice(dev)) return -EINVAL; - /* Calculate physical address of doorbell */ - address = kfd_get_process_doorbells(dev, process); + pdd = kfd_get_process_device_data(dev, process); + if (!pdd) + return -EINVAL; + /* Calculate physical address of doorbell */ + address = kfd_get_process_doorbells(pdd); vma->vm_flags |= VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_NORESERVE | VM_DONTDUMP | VM_PFNMAP; @@ -226,7 +227,7 @@ void write_kernel_doorbell64(void __iomem *db, u64 value) } unsigned int kfd_get_doorbell_dw_offset_in_bar(struct kfd_dev *kfd, - struct kfd_process *process, + struct kfd_process_device *pdd, unsigned int doorbell_id) { /* @@ -236,7 +237,7 @@ unsigned int kfd_get_doorbell_dw_offset_in_bar(struct kfd_dev *kfd, * units regardless of the ASIC-dependent doorbell size. */ return kfd->doorbell_base_dw_offset + - process->doorbell_index + pdd->doorbell_index * kfd_doorbell_process_slice(kfd) / sizeof(u32) + doorbell_id * kfd->device_info->doorbell_size / sizeof(u32); } @@ -251,25 +252,24 @@ uint64_t kfd_get_number_elems(struct kfd_dev *kfd) } -phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev, - struct kfd_process *process) +phys_addr_t kfd_get_process_doorbells(struct kfd_process_device *pdd) { - return dev->doorbell_base + - process->doorbell_index * kfd_doorbell_process_slice(dev); + return pdd->dev->doorbell_base + + pdd->doorbell_index * kfd_doorbell_process_slice(pdd->dev); } -int kfd_alloc_process_doorbells(struct kfd_process *process) +int kfd_alloc_process_doorbells(struct kfd_dev *kfd, unsigned int *doorbell_index) { - int r = ida_simple_get(&doorbell_ida, 1, max_doorbell_slices, + int r = ida_simple_get(&kfd->doorbell_ida, 1, kfd->max_doorbell_slices, GFP_KERNEL); if (r > 0) - process->doorbell_index = r; + *doorbell_index = r; return r; } -void kfd_free_process_doorbells(struct kfd_process *process) +void kfd_free_process_doorbells(struct kfd_dev *kfd, unsigned int doorbell_index) { - if (process->doorbell_index) - ida_simple_remove(&doorbell_ida, process->doorbell_index); + if (doorbell_index) + ida_simple_remove(&kfd->doorbell_ida, doorbell_index); } |