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author | Jason Gunthorpe <jgg@mellanox.com> | 2018-08-16 23:13:03 +0300 |
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committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-08-16 23:21:29 +0300 |
commit | 0a3173a5f09bc58a3638ecfd0a80bdbae55e123c (patch) | |
tree | d6c0bc84863cca54dfbde3b7463e5d49c82af9f1 /arch/mips/loongson64/common/dma.c | |
parent | 92f4e77c85918eab5e5803d7e28ab89a7e6bd3a2 (diff) | |
parent | 5c60a7389d795e001c8748b458eb76e3a5b6008c (diff) | |
download | linux-0a3173a5f09bc58a3638ecfd0a80bdbae55e123c.tar.xz |
Merge branch 'linus/master' into rdma.git for-next
rdma.git merge resolution for the 4.19 merge window
Conflicts:
drivers/infiniband/core/rdma_core.c
- Use the rdma code and revise with the new spelling for
atomic_fetch_add_unless
drivers/nvme/host/rdma.c
- Replace max_sge with max_send_sge in new blk code
drivers/nvme/target/rdma.c
- Use the blk code and revise to use NULL for ib_post_recv when
appropriate
- Replace max_sge with max_recv_sge in new blk code
net/rds/ib_send.c
- Use the net code and revise to use NULL for ib_post_recv when
appropriate
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'arch/mips/loongson64/common/dma.c')
-rw-r--r-- | arch/mips/loongson64/common/dma.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/mips/loongson64/common/dma.c b/arch/mips/loongson64/common/dma.c new file mode 100644 index 000000000000..48f04126bde2 --- /dev/null +++ b/arch/mips/loongson64/common/dma.c @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/dma-direct.h> + +dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr) +{ + return paddr | 0x80000000; +} + +phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr) +{ +#if defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT) + if (dma_addr > 0x8fffffff) + return dma_addr; + return dma_addr & 0x0fffffff; +#else + return dma_addr & 0x7fffffff; +#endif +} |