diff options
| author | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2019-07-29 08:51:48 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2019-07-29 08:51:48 -0700 |
| commit | ed32f8d42cee118b075e4372a55c7739a11094b2 (patch) | |
| tree | 5a806c5168d4177e0536b98b6bda30ec4bdbac43 /drivers/usb/core/buffer.c | |
| parent | 60a4233a4952729089e4df152e730f8f4d0e82ce (diff) | |
| parent | 5f9e832c137075045d15cd6899ab0505cfb2ca4b (diff) | |
Merge drm/drm-next into drm-intel-next-queued
Catching up with 5.3-rc*
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/usb/core/buffer.c')
| -rw-r--r-- | drivers/usb/core/buffer.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c index f641342cdec0..1359b78a624e 100644 --- a/drivers/usb/core/buffer.c +++ b/drivers/usb/core/buffer.c @@ -16,6 +16,7 @@ #include <linux/io.h> #include <linux/dma-mapping.h> #include <linux/dmapool.h> +#include <linux/genalloc.h> #include <linux/usb.h> #include <linux/usb/hcd.h> @@ -67,7 +68,7 @@ int hcd_buffer_create(struct usb_hcd *hcd) if (!IS_ENABLED(CONFIG_HAS_DMA) || (!is_device_dma_capable(hcd->self.sysdev) && - !(hcd->driver->flags & HCD_LOCAL_MEM))) + !hcd->localmem_pool)) return 0; for (i = 0; i < HCD_BUFFER_POOLS; i++) { @@ -124,10 +125,12 @@ void *hcd_buffer_alloc( if (size == 0) return NULL; + if (hcd->localmem_pool) + return gen_pool_dma_alloc(hcd->localmem_pool, size, dma); + /* some USB hosts just use PIO */ if (!IS_ENABLED(CONFIG_HAS_DMA) || - (!is_device_dma_capable(bus->sysdev) && - !(hcd->driver->flags & HCD_LOCAL_MEM))) { + !is_device_dma_capable(bus->sysdev)) { *dma = ~(dma_addr_t) 0; return kmalloc(size, mem_flags); } @@ -152,9 +155,13 @@ void hcd_buffer_free( if (!addr) return; + if (hcd->localmem_pool) { + gen_pool_free(hcd->localmem_pool, (unsigned long)addr, size); + return; + } + if (!IS_ENABLED(CONFIG_HAS_DMA) || - (!is_device_dma_capable(bus->sysdev) && - !(hcd->driver->flags & HCD_LOCAL_MEM))) { + !is_device_dma_capable(bus->sysdev)) { kfree(addr); return; } |