diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2018-05-19 13:55:40 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-05-19 13:55:40 +0200 |
| commit | b563ea676a46f3a297b1e64b6ece25b934aafba5 (patch) | |
| tree | 7b18cca93a853b253375d0a3f1cb5af242771768 /arch/sh/mm/consistent.c | |
| parent | 4fe581d7f114d56f31f392448477cff5a4394065 (diff) | |
| parent | 73fcb1a370c76b202d406e95d9dabb76eaccf484 (diff) | |
Merge branch 'linus' into timers/2038
Merge upstream to pick up changes on which pending patches depend on.
Diffstat (limited to 'arch/sh/mm/consistent.c')
| -rw-r--r-- | arch/sh/mm/consistent.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c index 8ce98691d822..f1b44697ad68 100644 --- a/arch/sh/mm/consistent.c +++ b/arch/sh/mm/consistent.c @@ -59,7 +59,9 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size, split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order); - *dma_handle = virt_to_phys(ret) - PFN_PHYS(dev->dma_pfn_offset); + *dma_handle = virt_to_phys(ret); + if (!WARN_ON(!dev)) + *dma_handle -= PFN_PHYS(dev->dma_pfn_offset); return ret_nocache; } @@ -69,9 +71,12 @@ void dma_generic_free_coherent(struct device *dev, size_t size, unsigned long attrs) { int order = get_order(size); - unsigned long pfn = (dma_handle >> PAGE_SHIFT) + dev->dma_pfn_offset; + unsigned long pfn = dma_handle >> PAGE_SHIFT; int k; + if (!WARN_ON(!dev)) + pfn += dev->dma_pfn_offset; + for (k = 0; k < (1 << order); k++) __free_pages(pfn_to_page(pfn + k), 0); @@ -143,7 +148,7 @@ int __init platform_resource_setup_memory(struct platform_device *pdev, if (!memsize) return 0; - buf = dma_alloc_coherent(NULL, memsize, &dma_handle, GFP_KERNEL); + buf = dma_alloc_coherent(&pdev->dev, memsize, &dma_handle, GFP_KERNEL); if (!buf) { pr_warning("%s: unable to allocate memory\n", name); return -ENOMEM; |