diff options
Diffstat (limited to 'dynamic-layers/raspberrypi/recipes-kernel/linux/files/0010-xen-arm-call-dma_to_phys-on-the-dma_addr_t-parameter.patch')
| -rw-r--r-- | dynamic-layers/raspberrypi/recipes-kernel/linux/files/0010-xen-arm-call-dma_to_phys-on-the-dma_addr_t-parameter.patch | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/dynamic-layers/raspberrypi/recipes-kernel/linux/files/0010-xen-arm-call-dma_to_phys-on-the-dma_addr_t-parameter.patch b/dynamic-layers/raspberrypi/recipes-kernel/linux/files/0010-xen-arm-call-dma_to_phys-on-the-dma_addr_t-parameter.patch deleted file mode 100644 index 8e2dc3c1..00000000 --- a/dynamic-layers/raspberrypi/recipes-kernel/linux/files/0010-xen-arm-call-dma_to_phys-on-the-dma_addr_t-parameter.patch +++ /dev/null @@ -1,75 +0,0 @@ -From 1f1182bf84ec7a6d1ec74c56fccd66ff013077af Mon Sep 17 00:00:00 2001 -From: Stefano Stabellini <stefano.stabellini@xilinx.com> -Date: Wed, 20 May 2020 16:43:08 -0700 -Subject: [PATCH 10/10] xen/arm: call dma_to_phys on the dma_addr_t parameter - of dma_cache_maint - -Add a struct device* parameter to dma_cache_maint. - -Translate the dma_addr_t parameter of dma_cache_maint by calling -dma_to_phys. Do it for the first page and all the following pages, in -case of multipage handling. - -Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com> ---- - arch/arm/xen/mm.c | 15 +++++++++------ - 1 file changed, 9 insertions(+), 6 deletions(-) - -diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c -index 7639251bcc79..6ddf3b3c1ab5 100644 ---- a/arch/arm/xen/mm.c -+++ b/arch/arm/xen/mm.c -@@ -43,15 +43,18 @@ unsigned long xen_get_swiotlb_free_pages(unsigned int order) - static bool hypercall_cflush = false; - - /* buffers in highmem or foreign pages cannot cross page boundaries */ --static void dma_cache_maint(dma_addr_t handle, size_t size, u32 op) -+static void dma_cache_maint(struct device *dev, dma_addr_t handle, -+ size_t size, u32 op) - { - struct gnttab_cache_flush cflush; - -- cflush.a.dev_bus_addr = handle & XEN_PAGE_MASK; - cflush.offset = xen_offset_in_page(handle); - cflush.op = op; -+ handle &= XEN_PAGE_MASK; - - do { -+ cflush.a.dev_bus_addr = dma_to_phys(dev, handle); -+ - if (size + cflush.offset > XEN_PAGE_SIZE) - cflush.length = XEN_PAGE_SIZE - cflush.offset; - else -@@ -60,7 +63,7 @@ static void dma_cache_maint(dma_addr_t handle, size_t size, u32 op) - HYPERVISOR_grant_table_op(GNTTABOP_cache_flush, &cflush, 1); - - cflush.offset = 0; -- cflush.a.dev_bus_addr += cflush.length; -+ handle += cflush.length; - size -= cflush.length; - } while (size); - } -@@ -79,7 +82,7 @@ void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle, - if (pfn_valid(PFN_DOWN(dma_to_phys(dev, handle)))) - arch_sync_dma_for_cpu(paddr, size, dir); - else if (dir != DMA_TO_DEVICE) -- dma_cache_maint(handle, size, GNTTAB_CACHE_INVAL); -+ dma_cache_maint(dev, handle, size, GNTTAB_CACHE_INVAL); - } - - void xen_dma_sync_for_device(struct device *dev, dma_addr_t handle, -@@ -89,9 +92,9 @@ void xen_dma_sync_for_device(struct device *dev, dma_addr_t handle, - if (pfn_valid(PFN_DOWN(dma_to_phys(dev, handle)))) - arch_sync_dma_for_device(paddr, size, dir); - else if (dir == DMA_FROM_DEVICE) -- dma_cache_maint(handle, size, GNTTAB_CACHE_INVAL); -+ dma_cache_maint(dev, handle, size, GNTTAB_CACHE_INVAL); - else -- dma_cache_maint(handle, size, GNTTAB_CACHE_CLEAN); -+ dma_cache_maint(dev, handle, size, GNTTAB_CACHE_CLEAN); - } - - bool xen_arch_need_swiotlb(struct device *dev, --- -2.15.4 - |