diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/file_ops.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/file_ops.c | 41 |
1 files changed, 29 insertions, 12 deletions
diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c index 7e03ccd..335796f 100644 --- a/drivers/infiniband/hw/hfi1/file_ops.c +++ b/drivers/infiniband/hw/hfi1/file_ops.c @@ -440,9 +440,10 @@ static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma) struct hfi1_filedata *fd = fp->private_data; struct hfi1_ctxtdata *uctxt = fd->uctxt; struct hfi1_devdata *dd; - unsigned long flags, pfn; + unsigned long flags; u64 token = vma->vm_pgoff << PAGE_SHIFT, memaddr = 0; + void *memvirt = NULL; u8 subctxt, mapio = 0, vmf = 0, type; ssize_t memlen = 0; int ret = 0; @@ -493,7 +494,8 @@ static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma) * second or third page allocated for credit returns (if number * of enabled contexts > 64 and 128 respectively). */ - memaddr = dd->cr_base[uctxt->numa_id].pa + + memvirt = dd->cr_base[uctxt->numa_id].va; + memaddr = virt_to_phys(memvirt) + (((u64)uctxt->sc->hw_free - (u64)dd->cr_base[uctxt->numa_id].va) & PAGE_MASK); memlen = PAGE_SIZE; @@ -508,8 +510,8 @@ static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma) mapio = 1; break; case RCV_HDRQ: - memaddr = uctxt->rcvhdrq_phys; memlen = uctxt->rcvhdrq_size; + memvirt = uctxt->rcvhdrq; break; case RCV_EGRBUF: { unsigned long addr; @@ -533,14 +535,21 @@ static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma) vma->vm_flags &= ~VM_MAYWRITE; addr = vma->vm_start; for (i = 0 ; i < uctxt->egrbufs.numbufs; i++) { + memlen = uctxt->egrbufs.buffers[i].len; + memvirt = uctxt->egrbufs.buffers[i].addr; ret = remap_pfn_range( vma, addr, - uctxt->egrbufs.buffers[i].phys >> PAGE_SHIFT, - uctxt->egrbufs.buffers[i].len, + /* + * virt_to_pfn() does the same, but + * it's not available on x86_64 + * when CONFIG_MMU is enabled. + */ + PFN_DOWN(__pa(memvirt)), + memlen, vma->vm_page_prot); if (ret < 0) goto done; - addr += uctxt->egrbufs.buffers[i].len; + addr += memlen; } ret = 0; goto done; @@ -596,8 +605,8 @@ static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma) ret = -EPERM; goto done; } - memaddr = uctxt->rcvhdrqtailaddr_phys; memlen = PAGE_SIZE; + memvirt = (void *)uctxt->rcvhdrtail_kvaddr; flags &= ~VM_MAYWRITE; break; case SUBCTXT_UREGS: @@ -650,16 +659,24 @@ static int hfi1_file_mmap(struct file *fp, struct vm_area_struct *vma) "%u:%u type:%u io/vf:%d/%d, addr:0x%llx, len:%lu(%lu), flags:0x%lx\n", ctxt, subctxt, type, mapio, vmf, memaddr, memlen, vma->vm_end - vma->vm_start, vma->vm_flags); - pfn = (unsigned long)(memaddr >> PAGE_SHIFT); if (vmf) { - vma->vm_pgoff = pfn; + vma->vm_pgoff = PFN_DOWN(memaddr); vma->vm_ops = &vm_ops; ret = 0; } else if (mapio) { - ret = io_remap_pfn_range(vma, vma->vm_start, pfn, memlen, + ret = io_remap_pfn_range(vma, vma->vm_start, + PFN_DOWN(memaddr), + memlen, vma->vm_page_prot); + } else if (memvirt) { + ret = remap_pfn_range(vma, vma->vm_start, + PFN_DOWN(__pa(memvirt)), + memlen, + vma->vm_page_prot); } else { - ret = remap_pfn_range(vma, vma->vm_start, pfn, memlen, + ret = remap_pfn_range(vma, vma->vm_start, + PFN_DOWN(memaddr), + memlen, vma->vm_page_prot); } done: @@ -1260,7 +1277,7 @@ static int get_base_info(struct file *fp, void __user *ubase, __u32 len) uctxt->rcvhdrq); binfo.rcvegr_bufbase = HFI1_MMAP_TOKEN(RCV_EGRBUF, uctxt->ctxt, fd->subctxt, - uctxt->egrbufs.rcvtids[0].phys); + uctxt->egrbufs.rcvtids[0].dma); binfo.sdma_comp_bufbase = HFI1_MMAP_TOKEN(SDMA_COMP, uctxt->ctxt, fd->subctxt, 0); /* |