diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-03-23 09:43:42 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-04-02 18:11:55 -0700 |
| commit | 255a69a94b8cbbcfef142137b5e7f99b5d168771 (patch) | |
| tree | ba40d43db66dcc086bb1b7ad634589b01f8a0569 /arch/sparc/mm/io-unit.c | |
| parent | bef7b2a7be28638770972ab2709adf11d601c11a (diff) | |
sparc32: use per-device dma_ops
sparc32 is the last platform making dynamic decisions in
get_arch_dma_ops based on the bus passed in. Instead set the
iommu dma_ops at iommu probing and propagate them in
of_propagate_archdata, falling back to the NULL ops for the
direct mapping in the Leon or PCI case.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/mm/io-unit.c')
| -rw-r--r-- | arch/sparc/mm/io-unit.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c index 33a0facd9eb5..289276b99b01 100644 --- a/arch/sparc/mm/io-unit.c +++ b/arch/sparc/mm/io-unit.c @@ -38,6 +38,8 @@ #define IOPERM (IOUPTE_CACHE | IOUPTE_WRITE | IOUPTE_VALID) #define MKIOPTE(phys) __iopte((((phys)>>4) & IOUPTE_PAGE) | IOPERM) +static const struct dma_map_ops iounit_dma_ops; + static void __init iounit_iommu_init(struct platform_device *op) { struct iounit_struct *iounit; @@ -70,6 +72,8 @@ static void __init iounit_iommu_init(struct platform_device *op) xptend = iounit->page_table + (16 * PAGE_SIZE) / sizeof(iopte_t); for (; xpt < xptend; xpt++) sbus_writel(0, xpt); + + op->dev.dma_ops = &iounit_dma_ops; } static int __init iounit_init(void) @@ -288,8 +292,3 @@ static const struct dma_map_ops iounit_dma_ops = { .map_sg = iounit_map_sg, .unmap_sg = iounit_unmap_sg, }; - -void __init ld_mmu_iounit(void) -{ - dma_ops = &iounit_dma_ops; -} |