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Commit bf5f9835 authored by Yixing Liu's avatar Yixing Liu Committed by Greg Kroah-Hartman
Browse files

RDMA/hns: Modify the mapping attribute of doorbell to device 

commit 39d5534b1302189c809e90641ffae8cbdc42a8fc upstream.

It is more general for ARM device drivers to use the device attribute to
map PCI BAR spaces.

Fixes: 9a443537 ("IB/hns: Add driver files for hns RoCE driver")
Link: https://lore.kernel.org/r/20211206133652.27476-1-liangwenpeng@huawei.com


Signed-off-by: default avatarYixing Liu <liuyixing1@huawei.com>
Signed-off-by: default avatarWenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 08d7a049

drivers/infiniband/hw/hns/hns_roce_main.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -432,7 +432,7 @@ static int hns_roce_mmap(struct ib_ucontext *context, 
		return -EINVAL;

		return -EINVAL;





	if (vma->vm_pgoff == 0) {

	if (vma->vm_pgoff == 0) {

		vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);

		vma->vm_page_prot = pgprot_device(vma->vm_page_prot);

		if (io_remap_pfn_range(vma, vma->vm_start,

		if (io_remap_pfn_range(vma, vma->vm_start,

				       to_hr_ucontext(context)->uar.pfn,

				       to_hr_ucontext(context)->uar.pfn,

				       PAGE_SIZE, vma->vm_page_prot))

				       PAGE_SIZE, vma->vm_page_prot))