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[Xen-devel] [PATCH v5 10/11] dma: rename dma_*_writecombine() to dma_*_wc()



From: "Luis R. Rodriguez" <mcgrof@xxxxxxxx>

Rename dma_*_writecombine() to dma_*_wc(), so that the naming
is coherent across the various write-combining APIs.

The following Coccinelle SmPL patch was used for this simple
transformation:

@ rename_dma_alloc_writecombine @
expression dev, size, dma_addr, gfp;
@@

-dma_alloc_writecombine(dev, size, dma_addr, gfp)
+dma_alloc_wc(dev, size, dma_addr, gfp)

@ rename_dma_free_writecombine @
expression dev, size, cpu_addr, dma_addr;
@@

-dma_free_writecombine(dev, size, cpu_addr, dma_addr)
+dma_free_wc(dev, size, cpu_addr, dma_addr)

@ rename_dma_mmap_writecombine @
expression dev, vma, cpu_addr, dma_addr, size;
@@

-dma_mmap_writecombine(dev, vma, cpu_addr, dma_addr, size)
+dma_mmap_wc(dev, vma, cpu_addr, dma_addr, size)

Generated-by: Coccinelle SmPL
Suggested-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxx>
---
 arch/arm/mach-lpc32xx/phy3250.c           | 13 ++++++-------
 arch/arm/mach-netx/fb.c                   | 14 ++++++--------
 arch/arm/mach-nspire/clcd.c               | 13 ++++++-------
 arch/avr32/include/asm/dma-mapping.h      | 20 ++++++++++----------
 arch/avr32/mm/dma-coherent.c              | 12 ++++++------
 arch/metag/include/asm/dma-mapping.h      |  4 ++--
 arch/metag/kernel/dma.c                   |  6 +++---
 drivers/dma/iop-adma.c                    |  8 ++++----
 drivers/dma/mv_xor.c                      |  4 ++--
 drivers/dma/qcom_bam_dma.c                | 14 +++++++-------
 drivers/gpu/drm/drm_gem_cma_helper.c      | 13 ++++++-------
 drivers/gpu/drm/omapdrm/omap_dmm_tiler.c  | 13 ++++++-------
 drivers/gpu/drm/omapdrm/omap_gem.c        |  8 ++++----
 drivers/gpu/drm/sti/sti_cursor.c          | 20 ++++++++------------
 drivers/gpu/drm/sti/sti_gdp.c             |  3 +--
 drivers/gpu/drm/sti/sti_hqvdp.c           |  6 +++---
 drivers/gpu/drm/tegra/gem.c               | 11 +++++------
 drivers/gpu/host1x/cdma.c                 |  8 ++++----
 drivers/gpu/host1x/job.c                  | 10 ++++------
 drivers/media/platform/coda/coda-bit.c    | 10 +++++-----
 drivers/video/fbdev/acornfb.c             |  4 ++--
 drivers/video/fbdev/amba-clcd-versatile.c | 14 ++++++--------
 drivers/video/fbdev/amba-clcd.c           |  4 ++--
 drivers/video/fbdev/atmel_lcdfb.c         |  9 +++++----
 drivers/video/fbdev/ep93xx-fb.c           |  8 +++-----
 drivers/video/fbdev/gbefb.c               |  8 ++++----
 drivers/video/fbdev/imxfb.c               | 12 ++++++------
 drivers/video/fbdev/mx3fb.c               |  9 ++++-----
 drivers/video/fbdev/nuc900fb.c            |  8 ++++----
 drivers/video/fbdev/omap/lcdc.c           | 16 ++++++++--------
 drivers/video/fbdev/pxa168fb.c            |  8 ++++----
 drivers/video/fbdev/pxafb.c               |  4 ++--
 drivers/video/fbdev/s3c-fb.c              |  7 +++----
 drivers/video/fbdev/s3c2410fb.c           |  8 ++++----
 drivers/video/fbdev/sa1100fb.c            |  8 ++++----
 include/linux/dma-mapping.h               | 16 ++++++++--------
 sound/arm/pxa2xx-pcm-lib.c                | 20 ++++++++------------
 sound/soc/fsl/imx-pcm-fiq.c               | 10 ++++------
 sound/soc/nuc900/nuc900-pcm.c             |  6 ++----
 sound/soc/omap/omap-pcm.c                 | 12 ++++--------
 40 files changed, 185 insertions(+), 216 deletions(-)

diff --git a/arch/arm/mach-lpc32xx/phy3250.c b/arch/arm/mach-lpc32xx/phy3250.c
index 7858d5b6f6ce..43ff56c2a7a9 100644
--- a/arch/arm/mach-lpc32xx/phy3250.c
+++ b/arch/arm/mach-lpc32xx/phy3250.c
@@ -86,8 +86,8 @@ static int lpc32xx_clcd_setup(struct clcd_fb *fb)
 {
        dma_addr_t dma;
 
-       fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev,
-               PANEL_SIZE, &dma, GFP_KERNEL);
+       fb->fb.screen_base = dma_alloc_wc(&fb->dev->dev, PANEL_SIZE, &dma,
+                                         GFP_KERNEL);
        if (!fb->fb.screen_base) {
                printk(KERN_ERR "CLCD: unable to map framebuffer\n");
                return -ENOMEM;
@@ -116,15 +116,14 @@ static int lpc32xx_clcd_setup(struct clcd_fb *fb)
 
 static int lpc32xx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
 {
-       return dma_mmap_writecombine(&fb->dev->dev, vma,
-               fb->fb.screen_base, fb->fb.fix.smem_start,
-               fb->fb.fix.smem_len);
+       return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,
+                          fb->fb.fix.smem_start, fb->fb.fix.smem_len);
 }
 
 static void lpc32xx_clcd_remove(struct clcd_fb *fb)
 {
-       dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
-               fb->fb.screen_base, fb->fb.fix.smem_start);
+       dma_free_wc(&fb->dev->dev, fb->fb.fix.smem_len, fb->fb.screen_base,
+                   fb->fb.fix.smem_start);
 }
 
 /*
diff --git a/arch/arm/mach-netx/fb.c b/arch/arm/mach-netx/fb.c
index d122ee6ab991..8814ee5e98fd 100644
--- a/arch/arm/mach-netx/fb.c
+++ b/arch/arm/mach-netx/fb.c
@@ -42,8 +42,8 @@ int netx_clcd_setup(struct clcd_fb *fb)
 
        fb->panel = netx_panel;
 
-       fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, 1024*1024,
-                                                   &dma, GFP_KERNEL);
+       fb->fb.screen_base = dma_alloc_wc(&fb->dev->dev, 1024 * 1024, &dma,
+                                         GFP_KERNEL);
        if (!fb->fb.screen_base) {
                printk(KERN_ERR "CLCD: unable to map framebuffer\n");
                return -ENOMEM;
@@ -57,16 +57,14 @@ int netx_clcd_setup(struct clcd_fb *fb)
 
 int netx_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
 {
-       return dma_mmap_writecombine(&fb->dev->dev, vma,
-                                    fb->fb.screen_base,
-                                    fb->fb.fix.smem_start,
-                                    fb->fb.fix.smem_len);
+       return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,
+                          fb->fb.fix.smem_start, fb->fb.fix.smem_len);
 }
 
 void netx_clcd_remove(struct clcd_fb *fb)
 {
-       dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
-                             fb->fb.screen_base, fb->fb.fix.smem_start);
+       dma_free_wc(&fb->dev->dev, fb->fb.fix.smem_len, fb->fb.screen_base,
+                   fb->fb.fix.smem_start);
 }
 
 static AMBA_AHB_DEVICE(fb, "fb", 0, 0x00104000, { NETX_IRQ_LCD }, NULL);
diff --git a/arch/arm/mach-nspire/clcd.c b/arch/arm/mach-nspire/clcd.c
index abea12617b17..ea0e5b2ca1cd 100644
--- a/arch/arm/mach-nspire/clcd.c
+++ b/arch/arm/mach-nspire/clcd.c
@@ -90,8 +90,8 @@ int nspire_clcd_setup(struct clcd_fb *fb)
        panel_size = ((panel->mode.xres * panel->mode.yres) * panel->bpp) / 8;
        panel_size = ALIGN(panel_size, PAGE_SIZE);
 
-       fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev,
-               panel_size, &dma, GFP_KERNEL);
+       fb->fb.screen_base = dma_alloc_wc(&fb->dev->dev, panel_size, &dma,
+                                         GFP_KERNEL);
 
        if (!fb->fb.screen_base) {
                pr_err("CLCD: unable to map framebuffer\n");
@@ -107,13 +107,12 @@ int nspire_clcd_setup(struct clcd_fb *fb)
 
 int nspire_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
 {
-       return dma_mmap_writecombine(&fb->dev->dev, vma,
-               fb->fb.screen_base, fb->fb.fix.smem_start,
-               fb->fb.fix.smem_len);
+       return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,
+                          fb->fb.fix.smem_start, fb->fb.fix.smem_len);
 }
 
 void nspire_clcd_remove(struct clcd_fb *fb)
 {
-       dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
-               fb->fb.screen_base, fb->fb.fix.smem_start);
+       dma_free_wc(&fb->dev->dev, fb->fb.fix.smem_len, fb->fb.screen_base,
+                   fb->fb.fix.smem_start);
 }
diff --git a/arch/avr32/include/asm/dma-mapping.h 
b/arch/avr32/include/asm/dma-mapping.h
index ae7ac9205d20..b43b11d1c7c0 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -71,7 +71,7 @@ extern void dma_free_coherent(struct device *dev, size_t size,
                              void *cpu_addr, dma_addr_t handle);
 
 /**
- * dma_alloc_writecombine - allocate write-combining memory for DMA
+ * dma_alloc_wc - allocate write-combining memory for DMA
  * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
  * @size: required memory size
  * @handle: bus-specific DMA address
@@ -81,24 +81,24 @@ extern void dma_free_coherent(struct device *dev, size_t 
size,
  * return the CPU-viewed address, and sets @handle to be the
  * device-viewed address.
  */
-extern void *dma_alloc_writecombine(struct device *dev, size_t size,
-                                   dma_addr_t *handle, gfp_t gfp);
+extern void *dma_alloc_wc(struct device *dev, size_t size,
+                         dma_addr_t *handle, gfp_t gfp);
 
 /**
- * dma_free_coherent - free memory allocated by dma_alloc_writecombine
+ * dma_free_coherent - free memory allocated by dma_alloc_wc
  * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
- * @size: size of memory originally requested in dma_alloc_writecombine
- * @cpu_addr: CPU-view address returned from dma_alloc_writecombine
- * @handle: device-view address returned from dma_alloc_writecombine
+ * @size: size of memory originally requested in dma_alloc_wc
+ * @cpu_addr: CPU-view address returned from dma_alloc_wc
+ * @handle: device-view address returned from dma_alloc_wc
  *
  * Free (and unmap) a DMA buffer previously allocated by
- * dma_alloc_writecombine().
+ * dma_alloc_wc().
  *
  * References to memory and mappings associated with cpu_addr/handle
  * during and after this call executing are illegal.
  */
-extern void dma_free_writecombine(struct device *dev, size_t size,
-                                 void *cpu_addr, dma_addr_t handle);
+extern void dma_free_wc(struct device *dev, size_t size,
+                       void *cpu_addr, dma_addr_t handle);
 
 /**
  * dma_map_single - map a single buffer for streaming DMA
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index 50cdb5b10f0f..5d029d202a2a 100644
--- a/arch/avr32/mm/dma-coherent.c
+++ b/arch/avr32/mm/dma-coherent.c
@@ -121,8 +121,8 @@ void dma_free_coherent(struct device *dev, size_t size,
 }
 EXPORT_SYMBOL(dma_free_coherent);
 
-void *dma_alloc_writecombine(struct device *dev, size_t size,
-                            dma_addr_t *handle, gfp_t gfp)
+void *dma_alloc_wc(struct device *dev, size_t size,
+                  dma_addr_t *handle, gfp_t gfp)
 {
        struct page *page;
        dma_addr_t phys;
@@ -137,10 +137,10 @@ void *dma_alloc_writecombine(struct device *dev, size_t 
size,
        /* Now, map the page into P3 with write-combining turned on */
        return __ioremap(phys, size, _PAGE_BUFFER);
 }
-EXPORT_SYMBOL(dma_alloc_writecombine);
+EXPORT_SYMBOL(dma_alloc_wc);
 
-void dma_free_writecombine(struct device *dev, size_t size,
-                          void *cpu_addr, dma_addr_t handle)
+void dma_free_wc(struct device *dev, size_t size,
+                void *cpu_addr, dma_addr_t handle)
 {
        struct page *page;
 
@@ -149,4 +149,4 @@ void dma_free_writecombine(struct device *dev, size_t size,
        page = phys_to_page(handle);
        __dma_free(dev, size, page, handle);
 }
-EXPORT_SYMBOL(dma_free_writecombine);
+EXPORT_SYMBOL(dma_free_wc);
diff --git a/arch/metag/include/asm/dma-mapping.h 
b/arch/metag/include/asm/dma-mapping.h
index eb5cdec94be0..d727deae083a 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -23,8 +23,8 @@ void dma_sync_for_cpu(void *vaddr, size_t size, int 
dma_direction);
 int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
                      void *cpu_addr, dma_addr_t dma_addr, size_t size);
 
-int dma_mmap_writecombine(struct device *dev, struct vm_area_struct *vma,
-                         void *cpu_addr, dma_addr_t dma_addr, size_t size);
+int dma_mmap_wc(struct device *dev, struct vm_area_struct *vma,
+               void *cpu_addr, dma_addr_t dma_addr, size_t size);
 
 static inline dma_addr_t
 dma_map_single(struct device *dev, void *ptr, size_t size,
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index c700d625067a..89138b4f717a 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -372,13 +372,13 @@ int dma_mmap_coherent(struct device *dev, struct 
vm_area_struct *vma,
 }
 EXPORT_SYMBOL(dma_mmap_coherent);
 
-int dma_mmap_writecombine(struct device *dev, struct vm_area_struct *vma,
-                         void *cpu_addr, dma_addr_t dma_addr, size_t size)
+int dma_mmap_wc(struct device *dev, struct vm_area_struct *vma,
+               void *cpu_addr, dma_addr_t dma_addr, size_t size)
 {
        vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
        return dma_mmap(dev, vma, cpu_addr, dma_addr, size);
 }
-EXPORT_SYMBOL(dma_mmap_writecombine);
+EXPORT_SYMBOL(dma_mmap_wc);
 
 
 
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index e4f43125e0fb..f039cfadf17b 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -1300,10 +1300,10 @@ static int iop_adma_probe(struct platform_device *pdev)
         * note: writecombine gives slightly better performance, but
         * requires that we explicitly flush the writes
         */
-       adev->dma_desc_pool_virt = dma_alloc_writecombine(&pdev->dev,
-                                                         plat_data->pool_size,
-                                                         &adev->dma_desc_pool,
-                                                         GFP_KERNEL);
+       adev->dma_desc_pool_virt = dma_alloc_wc(&pdev->dev,
+                                               plat_data->pool_size,
+                                               &adev->dma_desc_pool,
+                                               GFP_KERNEL);
        if (!adev->dma_desc_pool_virt) {
                ret = -ENOMEM;
                goto err_free_adev;
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index f1325f62563e..872a385a66fe 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1000,8 +1000,8 @@ mv_xor_channel_add(struct mv_xor_device *xordev,
         * requires that we explicitly flush the writes
         */
        mv_chan->dma_desc_pool_virt =
-         dma_alloc_writecombine(&pdev->dev, MV_XOR_POOL_SIZE,
-                                &mv_chan->dma_desc_pool, GFP_KERNEL);
+         dma_alloc_wc(&pdev->dev, MV_XOR_POOL_SIZE, &mv_chan->dma_desc_pool,
+                      GFP_KERNEL);
        if (!mv_chan->dma_desc_pool_virt)
                return ERR_PTR(-ENOMEM);
 
diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c
index 5a250cdc8376..d34aef7a101b 100644
--- a/drivers/dma/qcom_bam_dma.c
+++ b/drivers/dma/qcom_bam_dma.c
@@ -502,8 +502,8 @@ static int bam_alloc_chan(struct dma_chan *chan)
                return 0;
 
        /* allocate FIFO descriptor space, but only if necessary */
-       bchan->fifo_virt = dma_alloc_writecombine(bdev->dev, BAM_DESC_FIFO_SIZE,
-                               &bchan->fifo_phys, GFP_KERNEL);
+       bchan->fifo_virt = dma_alloc_wc(bdev->dev, BAM_DESC_FIFO_SIZE,
+                                       &bchan->fifo_phys, GFP_KERNEL);
 
        if (!bchan->fifo_virt) {
                dev_err(bdev->dev, "Failed to allocate desc fifo\n");
@@ -538,8 +538,8 @@ static void bam_free_chan(struct dma_chan *chan)
        bam_reset_channel(bchan);
        spin_unlock_irqrestore(&bchan->vc.lock, flags);
 
-       dma_free_writecombine(bdev->dev, BAM_DESC_FIFO_SIZE, bchan->fifo_virt,
-                               bchan->fifo_phys);
+       dma_free_wc(bdev->dev, BAM_DESC_FIFO_SIZE, bchan->fifo_virt,
+                   bchan->fifo_phys);
        bchan->fifo_virt = NULL;
 
        /* mask irq for pipe/channel */
@@ -1231,9 +1231,9 @@ static int bam_dma_remove(struct platform_device *pdev)
                bam_dma_terminate_all(&bdev->channels[i].vc.chan);
                tasklet_kill(&bdev->channels[i].vc.task);
 
-               dma_free_writecombine(bdev->dev, BAM_DESC_FIFO_SIZE,
-                       bdev->channels[i].fifo_virt,
-                       bdev->channels[i].fifo_phys);
+               dma_free_wc(bdev->dev, BAM_DESC_FIFO_SIZE,
+                           bdev->channels[i].fifo_virt,
+                           bdev->channels[i].fifo_phys);
        }
 
        tasklet_kill(&bdev->task);
diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c 
b/drivers/gpu/drm/drm_gem_cma_helper.c
index bd75f303da63..138142fcaf75 100644
--- a/drivers/gpu/drm/drm_gem_cma_helper.c
+++ b/drivers/gpu/drm/drm_gem_cma_helper.c
@@ -107,8 +107,8 @@ struct drm_gem_cma_object *drm_gem_cma_create(struct 
drm_device *drm,
        if (IS_ERR(cma_obj))
                return cma_obj;
 
-       cma_obj->vaddr = dma_alloc_writecombine(drm->dev, size,
-                       &cma_obj->paddr, GFP_KERNEL | __GFP_NOWARN);
+       cma_obj->vaddr = dma_alloc_wc(drm->dev, size, &cma_obj->paddr,
+                                     GFP_KERNEL | __GFP_NOWARN);
        if (!cma_obj->vaddr) {
                dev_err(drm->dev, "failed to allocate buffer with size %zu\n",
                        size);
@@ -190,8 +190,8 @@ void drm_gem_cma_free_object(struct drm_gem_object *gem_obj)
        cma_obj = to_drm_gem_cma_obj(gem_obj);
 
        if (cma_obj->vaddr) {
-               dma_free_writecombine(gem_obj->dev->dev, cma_obj->base.size,
-                                     cma_obj->vaddr, cma_obj->paddr);
+               dma_free_wc(gem_obj->dev->dev, cma_obj->base.size,
+                           cma_obj->vaddr, cma_obj->paddr);
        } else if (gem_obj->import_attach) {
                drm_prime_gem_destroy(gem_obj, cma_obj->sgt);
        }
@@ -327,9 +327,8 @@ static int drm_gem_cma_mmap_obj(struct drm_gem_cma_object 
*cma_obj,
        vma->vm_flags &= ~VM_PFNMAP;
        vma->vm_pgoff = 0;
 
-       ret = dma_mmap_writecombine(cma_obj->base.dev->dev, vma,
-                                   cma_obj->vaddr, cma_obj->paddr,
-                                   vma->vm_end - vma->vm_start);
+       ret = dma_mmap_wc(cma_obj->base.dev->dev, vma, cma_obj->vaddr,
+                         cma_obj->paddr, vma->vm_end - vma->vm_start);
        if (ret)
                drm_gem_vm_close(vma);
 
diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c 
b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
index 7841970de48d..43f0697ce752 100644
--- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
+++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
@@ -570,10 +570,9 @@ static int omap_dmm_remove(struct platform_device *dev)
 
                kfree(omap_dmm->engines);
                if (omap_dmm->refill_va)
-                       dma_free_writecombine(omap_dmm->dev,
-                               REFILL_BUFFER_SIZE * omap_dmm->num_engines,
-                               omap_dmm->refill_va,
-                               omap_dmm->refill_pa);
+                       dma_free_wc(omap_dmm->dev,
+                                   REFILL_BUFFER_SIZE * omap_dmm->num_engines,
+                                   omap_dmm->refill_va, omap_dmm->refill_pa);
                if (omap_dmm->dummy_page)
                        __free_page(omap_dmm->dummy_page);
 
@@ -698,9 +697,9 @@ static int omap_dmm_probe(struct platform_device *dev)
        omap_dmm->dummy_pa = page_to_phys(omap_dmm->dummy_page);
 
        /* alloc refill memory */
-       omap_dmm->refill_va = dma_alloc_writecombine(&dev->dev,
-                               REFILL_BUFFER_SIZE * omap_dmm->num_engines,
-                               &omap_dmm->refill_pa, GFP_KERNEL);
+       omap_dmm->refill_va = dma_alloc_wc(&dev->dev,
+                                          REFILL_BUFFER_SIZE * 
omap_dmm->num_engines,
+                                          &omap_dmm->refill_pa, GFP_KERNEL);
        if (!omap_dmm->refill_va) {
                dev_err(&dev->dev, "could not allocate refill memory\n");
                goto fail;
diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c 
b/drivers/gpu/drm/omapdrm/omap_gem.c
index 7ed08fdc4c42..be3635b93527 100644
--- a/drivers/gpu/drm/omapdrm/omap_gem.c
+++ b/drivers/gpu/drm/omapdrm/omap_gem.c
@@ -1295,8 +1295,8 @@ void omap_gem_free_object(struct drm_gem_object *obj)
                        omap_gem_detach_pages(obj);
 
                if (!is_shmem(obj)) {
-                       dma_free_writecombine(dev->dev, obj->size,
-                                       omap_obj->vaddr, omap_obj->paddr);
+                       dma_free_wc(dev->dev, obj->size, omap_obj->vaddr,
+                                   omap_obj->paddr);
                } else if (omap_obj->vaddr) {
                        vunmap(omap_obj->vaddr);
                }
@@ -1384,8 +1384,8 @@ struct drm_gem_object *omap_gem_new(struct drm_device 
*dev,
                /* attempt to allocate contiguous memory if we don't
                 * have DMM for remappign discontiguous buffers
                 */
-               omap_obj->vaddr =  dma_alloc_writecombine(dev->dev, size,
-                               &omap_obj->paddr, GFP_KERNEL);
+               omap_obj->vaddr =  dma_alloc_wc(dev->dev, size,
+                                               &omap_obj->paddr, GFP_KERNEL);
                if (!omap_obj->vaddr) {
                        kfree(omap_obj);
 
diff --git a/drivers/gpu/drm/sti/sti_cursor.c b/drivers/gpu/drm/sti/sti_cursor.c
index 010eaee60bf7..75bdbf140fb0 100644
--- a/drivers/gpu/drm/sti/sti_cursor.c
+++ b/drivers/gpu/drm/sti/sti_cursor.c
@@ -124,17 +124,15 @@ static int sti_cursor_prepare_layer(struct sti_layer 
*layer, bool first_prepare)
                cursor->height = layer->src_h;
 
                if (cursor->pixmap.base)
-                       dma_free_writecombine(layer->dev,
-                                             cursor->pixmap.size,
-                                             cursor->pixmap.base,
-                                             cursor->pixmap.paddr);
+                       dma_free_wc(layer->dev, cursor->pixmap.size,
+                                   cursor->pixmap.base, cursor->pixmap.paddr);
 
                cursor->pixmap.size = cursor->width * cursor->height;
 
-               cursor->pixmap.base = dma_alloc_writecombine(layer->dev,
-                                                       cursor->pixmap.size,
-                                                       &cursor->pixmap.paddr,
-                                                       GFP_KERNEL | GFP_DMA);
+               cursor->pixmap.base = dma_alloc_wc(layer->dev,
+                                                  cursor->pixmap.size,
+                                                  &cursor->pixmap.paddr,
+                                                  GFP_KERNEL | GFP_DMA);
                if (!cursor->pixmap.base) {
                        DRM_ERROR("Failed to allocate memory for pixmap\n");
                        return -ENOMEM;
@@ -225,10 +223,8 @@ struct sti_layer *sti_cursor_create(struct device *dev)
        }
 
        /* Allocate clut buffer */
-       cursor->clut = dma_alloc_writecombine(dev,
-                       0x100 * sizeof(unsigned short),
-                       &cursor->clut_paddr,
-                       GFP_KERNEL | GFP_DMA);
+       cursor->clut = dma_alloc_wc(dev, 0x100 * sizeof(unsigned short),
+                                   &cursor->clut_paddr, GFP_KERNEL | GFP_DMA);
 
        if (!cursor->clut) {
                DRM_ERROR("Failed to allocate memory for cursor clut\n");
diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c
index 087906fd8846..9bf293ee3bc3 100644
--- a/drivers/gpu/drm/sti/sti_gdp.c
+++ b/drivers/gpu/drm/sti/sti_gdp.c
@@ -490,8 +490,7 @@ static void sti_gdp_init(struct sti_layer *layer)
        /* Allocate all the nodes within a single memory page */
        size = sizeof(struct sti_gdp_node) *
            GDP_NODE_PER_FIELD * GDP_NODE_NB_BANK;
-       base = dma_alloc_writecombine(layer->dev,
-                       size, &dma_addr, GFP_KERNEL | GFP_DMA);
+       base = dma_alloc_wc(layer->dev, size, &dma_addr, GFP_KERNEL | GFP_DMA);
 
        if (!base) {
                DRM_ERROR("Failed to allocate memory for GDP node\n");
diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index b0eb62de1b2e..025f48795b9c 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -788,9 +788,9 @@ static void sti_hqvd_init(struct sti_layer *layer)
 
        /* Allocate memory for the VDP commands */
        size = NB_VDP_CMD * sizeof(struct sti_hqvdp_cmd);
-       hqvdp->hqvdp_cmd = dma_alloc_writecombine(hqvdp->dev, size,
-                                        &hqvdp->hqvdp_cmd_paddr,
-                                        GFP_KERNEL | GFP_DMA);
+       hqvdp->hqvdp_cmd = dma_alloc_wc(hqvdp->dev, size,
+                                       &hqvdp->hqvdp_cmd_paddr,
+                                       GFP_KERNEL | GFP_DMA);
        if (!hqvdp->hqvdp_cmd) {
                DRM_ERROR("Failed to allocate memory for VDP cmd\n");
                return;
diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
index 01e16e146bfe..82777d424f23 100644
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -181,8 +181,7 @@ static void tegra_bo_free(struct drm_device *drm, struct 
tegra_bo *bo)
                sg_free_table(bo->sgt);
                kfree(bo->sgt);
        } else if (bo->vaddr) {
-               dma_free_writecombine(drm->dev, bo->gem.size, bo->vaddr,
-                                     bo->paddr);
+               dma_free_wc(drm->dev, bo->gem.size, bo->vaddr, bo->paddr);
        }
 }
 
@@ -239,8 +238,8 @@ static int tegra_bo_alloc(struct drm_device *drm, struct 
tegra_bo *bo)
        } else {
                size_t size = bo->gem.size;
 
-               bo->vaddr = dma_alloc_writecombine(drm->dev, size, &bo->paddr,
-                                                  GFP_KERNEL | __GFP_NOWARN);
+               bo->vaddr = dma_alloc_wc(drm->dev, size, &bo->paddr,
+                                        GFP_KERNEL | __GFP_NOWARN);
                if (!bo->vaddr) {
                        dev_err(drm->dev,
                                "failed to allocate buffer of size %zu\n",
@@ -483,8 +482,8 @@ int tegra_drm_mmap(struct file *file, struct vm_area_struct 
*vma)
                vma->vm_flags &= ~VM_PFNMAP;
                vma->vm_pgoff = 0;
 
-               ret = dma_mmap_writecombine(gem->dev->dev, vma, bo->vaddr,
-                                           bo->paddr, gem->size);
+               ret = dma_mmap_wc(gem->dev->dev, vma, bo->vaddr, bo->paddr,
+                                 gem->size);
                if (ret) {
                        drm_gem_vm_close(vma);
                        return ret;
diff --git a/drivers/gpu/host1x/cdma.c b/drivers/gpu/host1x/cdma.c
index 5a8c8d55317a..a18db4d5347c 100644
--- a/drivers/gpu/host1x/cdma.c
+++ b/drivers/gpu/host1x/cdma.c
@@ -52,8 +52,8 @@ static void host1x_pushbuffer_destroy(struct push_buffer *pb)
        struct host1x *host1x = cdma_to_host1x(cdma);
 
        if (pb->phys != 0)
-               dma_free_writecombine(host1x->dev, pb->size_bytes + 4,
-                                     pb->mapped, pb->phys);
+               dma_free_wc(host1x->dev, pb->size_bytes + 4, pb->mapped,
+                           pb->phys);
 
        pb->mapped = NULL;
        pb->phys = 0;
@@ -76,8 +76,8 @@ static int host1x_pushbuffer_init(struct push_buffer *pb)
        pb->pos = 0;
 
        /* allocate and map pushbuffer memory */
-       pb->mapped = dma_alloc_writecombine(host1x->dev, pb->size_bytes + 4,
-                                           &pb->phys, GFP_KERNEL);
+       pb->mapped = dma_alloc_wc(host1x->dev, pb->size_bytes + 4, &pb->phys,
+                                 GFP_KERNEL);
        if (!pb->mapped)
                goto fail;
 
diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
index 63bd63f3c7df..defa7995f213 100644
--- a/drivers/gpu/host1x/job.c
+++ b/drivers/gpu/host1x/job.c
@@ -467,9 +467,8 @@ static inline int copy_gathers(struct host1x_job *job, 
struct device *dev)
                size += g->words * sizeof(u32);
        }
 
-       job->gather_copy_mapped = dma_alloc_writecombine(dev, size,
-                                                        &job->gather_copy,
-                                                        GFP_KERNEL);
+       job->gather_copy_mapped = dma_alloc_wc(dev, size, &job->gather_copy,
+                                              GFP_KERNEL);
        if (!job->gather_copy_mapped) {
                job->gather_copy_mapped = NULL;
                return -ENOMEM;
@@ -578,9 +577,8 @@ void host1x_job_unpin(struct host1x_job *job)
        job->num_unpins = 0;
 
        if (job->gather_copy_size)
-               dma_free_writecombine(job->channel->dev, job->gather_copy_size,
-                                     job->gather_copy_mapped,
-                                     job->gather_copy);
+               dma_free_wc(job->channel->dev, job->gather_copy_size,
+                           job->gather_copy_mapped, job->gather_copy);
 }
 EXPORT_SYMBOL(host1x_job_unpin);
 
diff --git a/drivers/media/platform/coda/coda-bit.c 
b/drivers/media/platform/coda/coda-bit.c
index 109797bb8fbb..d1e1658a4f35 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -1373,9 +1373,9 @@ static int coda_alloc_bitstream_buffer(struct coda_ctx 
*ctx,
                return 0;
 
        ctx->bitstream.size = roundup_pow_of_two(q_data->sizeimage * 2);
-       ctx->bitstream.vaddr = dma_alloc_writecombine(
-                       &ctx->dev->plat_dev->dev, ctx->bitstream.size,
-                       &ctx->bitstream.paddr, GFP_KERNEL);
+       ctx->bitstream.vaddr = dma_alloc_wc(&ctx->dev->plat_dev->dev,
+                                           ctx->bitstream.size,
+                                           &ctx->bitstream.paddr, GFP_KERNEL);
        if (!ctx->bitstream.vaddr) {
                v4l2_err(&ctx->dev->v4l2_dev,
                         "failed to allocate bitstream ringbuffer");
@@ -1392,8 +1392,8 @@ static void coda_free_bitstream_buffer(struct coda_ctx 
*ctx)
        if (ctx->bitstream.vaddr == NULL)
                return;
 
-       dma_free_writecombine(&ctx->dev->plat_dev->dev, ctx->bitstream.size,
-                             ctx->bitstream.vaddr, ctx->bitstream.paddr);
+       dma_free_wc(&ctx->dev->plat_dev->dev, ctx->bitstream.size,
+                   ctx->bitstream.vaddr, ctx->bitstream.paddr);
        ctx->bitstream.vaddr = NULL;
        kfifo_init(&ctx->bitstream_fifo, NULL, 0);
 }
diff --git a/drivers/video/fbdev/acornfb.c b/drivers/video/fbdev/acornfb.c
index a305caea58ee..fb75b7e5a19a 100644
--- a/drivers/video/fbdev/acornfb.c
+++ b/drivers/video/fbdev/acornfb.c
@@ -1040,8 +1040,8 @@ static int acornfb_probe(struct platform_device *dev)
                 * for the framebuffer if we are not using
                 * VRAM.
                 */
-               base = dma_alloc_writecombine(current_par.dev, size, &handle,
-                                             GFP_KERNEL);
+               base = dma_alloc_wc(current_par.dev, size, &handle,
+                                   GFP_KERNEL);
                if (base == NULL) {
                        printk(KERN_ERR "acornfb: unable to allocate screen "
                               "memory\n");
diff --git a/drivers/video/fbdev/amba-clcd-versatile.c 
b/drivers/video/fbdev/amba-clcd-versatile.c
index 7a8afcd4573e..a8a22daa3f9d 100644
--- a/drivers/video/fbdev/amba-clcd-versatile.c
+++ b/drivers/video/fbdev/amba-clcd-versatile.c
@@ -154,8 +154,8 @@ int versatile_clcd_setup_dma(struct clcd_fb *fb, unsigned 
long framesize)
 {
        dma_addr_t dma;
 
-       fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, framesize,
-                                                   &dma, GFP_KERNEL);
+       fb->fb.screen_base = dma_alloc_wc(&fb->dev->dev, framesize, &dma,
+                                         GFP_KERNEL);
        if (!fb->fb.screen_base) {
                pr_err("CLCD: unable to map framebuffer\n");
                return -ENOMEM;
@@ -169,14 +169,12 @@ int versatile_clcd_setup_dma(struct clcd_fb *fb, unsigned 
long framesize)
 
 int versatile_clcd_mmap_dma(struct clcd_fb *fb, struct vm_area_struct *vma)
 {
-       return dma_mmap_writecombine(&fb->dev->dev, vma,
-                                    fb->fb.screen_base,
-                                    fb->fb.fix.smem_start,
-                                    fb->fb.fix.smem_len);
+       return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,
+                          fb->fb.fix.smem_start, fb->fb.fix.smem_len);
 }
 
 void versatile_clcd_remove_dma(struct clcd_fb *fb)
 {
-       dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len,
-                             fb->fb.screen_base, fb->fb.fix.smem_start);
+       dma_free_wc(&fb->dev->dev, fb->fb.fix.smem_len, fb->fb.screen_base,
+                   fb->fb.fix.smem_start);
 }
diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c
index 9362424c2340..fe274b5851c7 100644
--- a/drivers/video/fbdev/amba-clcd.c
+++ b/drivers/video/fbdev/amba-clcd.c
@@ -774,8 +774,8 @@ static int clcdfb_of_dma_setup(struct clcd_fb *fb)
 
 static int clcdfb_of_dma_mmap(struct clcd_fb *fb, struct vm_area_struct *vma)
 {
-       return dma_mmap_writecombine(&fb->dev->dev, vma, fb->fb.screen_base,
-                       fb->fb.fix.smem_start, fb->fb.fix.smem_len);
+       return dma_mmap_wc(&fb->dev->dev, vma, fb->fb.screen_base,
+                          fb->fb.fix.smem_start, fb->fb.fix.smem_len);
 }
 
 static void clcdfb_of_dma_remove(struct clcd_fb *fb)
diff --git a/drivers/video/fbdev/atmel_lcdfb.c 
b/drivers/video/fbdev/atmel_lcdfb.c
index abadc490fa1f..689fb9d99988 100644
--- a/drivers/video/fbdev/atmel_lcdfb.c
+++ b/drivers/video/fbdev/atmel_lcdfb.c
@@ -415,8 +415,8 @@ static inline void atmel_lcdfb_free_video_memory(struct 
atmel_lcdfb_info *sinfo)
 {
        struct fb_info *info = sinfo->info;
 
-       dma_free_writecombine(info->device, info->fix.smem_len,
-                               info->screen_base, info->fix.smem_start);
+       dma_free_wc(info->device, info->fix.smem_len, info->screen_base,
+                   info->fix.smem_start);
 }
 
 /**
@@ -436,8 +436,9 @@ static int atmel_lcdfb_alloc_video_memory(struct 
atmel_lcdfb_info *sinfo)
                    * ((var->bits_per_pixel + 7) / 8));
        info->fix.smem_len = max(smem_len, sinfo->smem_len);
 
-       info->screen_base = dma_alloc_writecombine(info->device, 
info->fix.smem_len,
-                                       (dma_addr_t *)&info->fix.smem_start, 
GFP_KERNEL);
+       info->screen_base = dma_alloc_wc(info->device, info->fix.smem_len,
+                                        (dma_addr_t *)&info->fix.smem_start,
+                                        GFP_KERNEL);
 
        if (!info->screen_base) {
                return -ENOMEM;
diff --git a/drivers/video/fbdev/ep93xx-fb.c b/drivers/video/fbdev/ep93xx-fb.c
index 7ec251cc9c03..e876b83e4600 100644
--- a/drivers/video/fbdev/ep93xx-fb.c
+++ b/drivers/video/fbdev/ep93xx-fb.c
@@ -316,9 +316,8 @@ static int ep93xxfb_mmap(struct fb_info *info, struct 
vm_area_struct *vma)
        unsigned int offset = vma->vm_pgoff << PAGE_SHIFT;
 
        if (offset < info->fix.smem_len) {
-               return dma_mmap_writecombine(info->dev, vma, info->screen_base,
-                                            info->fix.smem_start,
-                                            info->fix.smem_len);
+               return dma_mmap_wc(info->dev, vma, info->screen_base,
+                                  info->fix.smem_start, info->fix.smem_len);
        }
 
        return -EINVAL;
@@ -449,8 +448,7 @@ static int ep93xxfb_alloc_videomem(struct fb_info *info)
        unsigned int fb_size;
 
        fb_size = ep93xxfb_calc_fbsize(fbi->mach_info);
-       virt_addr = dma_alloc_writecombine(info->dev, fb_size,
-                                          &phys_addr, GFP_KERNEL);
+       virt_addr = dma_alloc_wc(info->dev, fb_size, &phys_addr, GFP_KERNEL);
        if (!virt_addr)
                return -ENOMEM;
 
diff --git a/drivers/video/fbdev/gbefb.c b/drivers/video/fbdev/gbefb.c
index b63d55f481fa..1a242b1338e9 100644
--- a/drivers/video/fbdev/gbefb.c
+++ b/drivers/video/fbdev/gbefb.c
@@ -1185,8 +1185,8 @@ static int gbefb_probe(struct platform_device *p_dev)
        } else {
                /* try to allocate memory with the classical allocator
                 * this has high chance to fail on low memory machines */
-               gbe_mem = dma_alloc_writecombine(NULL, gbe_mem_size,
-                                                &gbe_dma_addr, GFP_KERNEL);
+               gbe_mem = dma_alloc_wc(NULL, gbe_mem_size, &gbe_dma_addr,
+                                      GFP_KERNEL);
                if (!gbe_mem) {
                        printk(KERN_ERR "gbefb: couldn't allocate framebuffer 
memory\n");
                        ret = -ENOMEM;
@@ -1238,7 +1238,7 @@ static int gbefb_probe(struct platform_device *p_dev)
 out_gbe_unmap:
        arch_phys_wc_del(par->wc_cookie);
        if (gbe_dma_addr)
-               dma_free_writecombine(NULL, gbe_mem_size, gbe_mem, 
gbe_mem_phys);
+               dma_free_wc(NULL, gbe_mem_size, gbe_mem, gbe_mem_phys);
 out_tiles_free:
        dma_free_coherent(NULL, GBE_TLB_SIZE * sizeof(uint16_t),
                          (void *)gbe_tiles.cpu, gbe_tiles.dma);
@@ -1259,7 +1259,7 @@ static int gbefb_remove(struct platform_device* p_dev)
        gbe_turn_off();
        arch_phys_wc_del(par->wc_cookie);
        if (gbe_dma_addr)
-               dma_free_writecombine(NULL, gbe_mem_size, gbe_mem, 
gbe_mem_phys);
+               dma_free_wc(NULL, gbe_mem_size, gbe_mem, gbe_mem_phys);
        dma_free_coherent(NULL, GBE_TLB_SIZE * sizeof(uint16_t),
                          (void *)gbe_tiles.cpu, gbe_tiles.dma);
        release_mem_region(GBE_BASE, sizeof(struct sgi_gbe));
diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c
index cee88603efc9..465b3387c549 100644
--- a/drivers/video/fbdev/imxfb.c
+++ b/drivers/video/fbdev/imxfb.c
@@ -922,8 +922,8 @@ static int imxfb_probe(struct platform_device *pdev)
        }
 
        fbi->map_size = PAGE_ALIGN(info->fix.smem_len);
-       info->screen_base = dma_alloc_writecombine(&pdev->dev, fbi->map_size,
-                                                  &fbi->map_dma, GFP_KERNEL);
+       info->screen_base = dma_alloc_wc(&pdev->dev, fbi->map_size,
+                                        &fbi->map_dma, GFP_KERNEL);
 
        if (!info->screen_base) {
                dev_err(&pdev->dev, "Failed to allocate video RAM: %d\n", ret);
@@ -990,8 +990,8 @@ failed_cmap:
        if (pdata && pdata->exit)
                pdata->exit(fbi->pdev);
 failed_platform_init:
-       dma_free_writecombine(&pdev->dev, fbi->map_size, info->screen_base,
-                             fbi->map_dma);
+       dma_free_wc(&pdev->dev, fbi->map_size, info->screen_base,
+                   fbi->map_dma);
 failed_map:
        iounmap(fbi->regs);
 failed_ioremap:
@@ -1026,8 +1026,8 @@ static int imxfb_remove(struct platform_device *pdev)
        kfree(info->pseudo_palette);
        framebuffer_release(info);
 
-       dma_free_writecombine(&pdev->dev, fbi->map_size, info->screen_base,
-                             fbi->map_dma);
+       dma_free_wc(&pdev->dev, fbi->map_size, info->screen_base,
+                   fbi->map_dma);
 
        iounmap(fbi->regs);
        release_mem_region(res->start, resource_size(res));
diff --git a/drivers/video/fbdev/mx3fb.c b/drivers/video/fbdev/mx3fb.c
index 7947634ee6b0..f91b1db262b0 100644
--- a/drivers/video/fbdev/mx3fb.c
+++ b/drivers/video/fbdev/mx3fb.c
@@ -1336,9 +1336,8 @@ static int mx3fb_map_video_memory(struct fb_info *fbi, 
unsigned int mem_len,
        int retval = 0;
        dma_addr_t addr;
 
-       fbi->screen_base = dma_alloc_writecombine(fbi->device,
-                                                 mem_len,
-                                                 &addr, GFP_DMA | GFP_KERNEL);
+       fbi->screen_base = dma_alloc_wc(fbi->device, mem_len, &addr,
+                                       GFP_DMA | GFP_KERNEL);
 
        if (!fbi->screen_base) {
                dev_err(fbi->device, "Cannot allocate %u bytes framebuffer 
memory\n",
@@ -1378,8 +1377,8 @@ err0:
  */
 static int mx3fb_unmap_video_memory(struct fb_info *fbi)
 {
-       dma_free_writecombine(fbi->device, fbi->fix.smem_len,
-                             fbi->screen_base, fbi->fix.smem_start);
+       dma_free_wc(fbi->device, fbi->fix.smem_len, fbi->screen_base,
+                   fbi->fix.smem_start);
 
        fbi->screen_base = NULL;
        mutex_lock(&fbi->mm_lock);
diff --git a/drivers/video/fbdev/nuc900fb.c b/drivers/video/fbdev/nuc900fb.c
index 389fa2cbb713..6680edae4696 100644
--- a/drivers/video/fbdev/nuc900fb.c
+++ b/drivers/video/fbdev/nuc900fb.c
@@ -396,8 +396,8 @@ static int nuc900fb_map_video_memory(struct fb_info *info)
        dev_dbg(fbi->dev, "nuc900fb_map_video_memory(fbi=%p) map_size %lu\n",
                fbi, map_size);
 
-       info->screen_base = dma_alloc_writecombine(fbi->dev, map_size,
-                                                       &map_dma, GFP_KERNEL);
+       info->screen_base = dma_alloc_wc(fbi->dev, map_size, &map_dma,
+                                        GFP_KERNEL);
 
        if (!info->screen_base)
                return -ENOMEM;
@@ -411,8 +411,8 @@ static int nuc900fb_map_video_memory(struct fb_info *info)
 static inline void nuc900fb_unmap_video_memory(struct fb_info *info)
 {
        struct nuc900fb_info *fbi = info->par;
-       dma_free_writecombine(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
-                             info->screen_base, info->fix.smem_start);
+       dma_free_wc(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
+                   info->screen_base, info->fix.smem_start);
 }
 
 static irqreturn_t nuc900fb_irqhandler(int irq, void *dev_id)
diff --git a/drivers/video/fbdev/omap/lcdc.c b/drivers/video/fbdev/omap/lcdc.c
index 6efa2591eaa8..e3d9b9ea5498 100644
--- a/drivers/video/fbdev/omap/lcdc.c
+++ b/drivers/video/fbdev/omap/lcdc.c
@@ -612,8 +612,8 @@ static void lcdc_dma_handler(u16 status, void *data)
 
 static int alloc_palette_ram(void)
 {
-       lcdc.palette_virt = dma_alloc_writecombine(lcdc.fbdev->dev,
-               MAX_PALETTE_SIZE, &lcdc.palette_phys, GFP_KERNEL);
+       lcdc.palette_virt = dma_alloc_wc(lcdc.fbdev->dev, MAX_PALETTE_SIZE,
+                                        &lcdc.palette_phys, GFP_KERNEL);
        if (lcdc.palette_virt == NULL) {
                dev_err(lcdc.fbdev->dev, "failed to alloc palette memory\n");
                return -ENOMEM;
@@ -625,8 +625,8 @@ static int alloc_palette_ram(void)
 
 static void free_palette_ram(void)
 {
-       dma_free_writecombine(lcdc.fbdev->dev, MAX_PALETTE_SIZE,
-                       lcdc.palette_virt, lcdc.palette_phys);
+       dma_free_wc(lcdc.fbdev->dev, MAX_PALETTE_SIZE, lcdc.palette_virt,
+                   lcdc.palette_phys);
 }
 
 static int alloc_fbmem(struct omapfb_mem_region *region)
@@ -642,8 +642,8 @@ static int alloc_fbmem(struct omapfb_mem_region *region)
        if (region->size > frame_size)
                frame_size = region->size;
        lcdc.vram_size = frame_size;
-       lcdc.vram_virt = dma_alloc_writecombine(lcdc.fbdev->dev,
-                       lcdc.vram_size, &lcdc.vram_phys, GFP_KERNEL);
+       lcdc.vram_virt = dma_alloc_wc(lcdc.fbdev->dev, lcdc.vram_size,
+                                     &lcdc.vram_phys, GFP_KERNEL);
        if (lcdc.vram_virt == NULL) {
                dev_err(lcdc.fbdev->dev, "unable to allocate FB DMA memory\n");
                return -ENOMEM;
@@ -660,8 +660,8 @@ static int alloc_fbmem(struct omapfb_mem_region *region)
 
 static void free_fbmem(void)
 {
-       dma_free_writecombine(lcdc.fbdev->dev, lcdc.vram_size,
-                             lcdc.vram_virt, lcdc.vram_phys);
+       dma_free_wc(lcdc.fbdev->dev, lcdc.vram_size, lcdc.vram_virt,
+                   lcdc.vram_phys);
 }
 
 static int setup_fbmem(struct omapfb_mem_desc *req_md)
diff --git a/drivers/video/fbdev/pxa168fb.c b/drivers/video/fbdev/pxa168fb.c
index e209b039f553..04bd7237da6f 100644
--- a/drivers/video/fbdev/pxa168fb.c
+++ b/drivers/video/fbdev/pxa168fb.c
@@ -683,8 +683,8 @@ static int pxa168fb_probe(struct platform_device *pdev)
         */
        info->fix.smem_len = PAGE_ALIGN(DEFAULT_FB_SIZE);
 
-       info->screen_base = dma_alloc_writecombine(fbi->dev, info->fix.smem_len,
-                                               &fbi->fb_start_dma, GFP_KERNEL);
+       info->screen_base = dma_alloc_wc(fbi->dev, info->fix.smem_len,
+                                        &fbi->fb_start_dma, GFP_KERNEL);
        if (info->screen_base == NULL) {
                ret = -ENOMEM;
                goto failed_free_info;
@@ -809,8 +809,8 @@ static int pxa168fb_remove(struct platform_device *pdev)
 
        irq = platform_get_irq(pdev, 0);
 
-       dma_free_writecombine(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
-                               info->screen_base, info->fix.smem_start);
+       dma_free_wc(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
+                   info->screen_base, info->fix.smem_start);
 
        clk_disable(fbi->clk);
        clk_put(fbi->clk);
diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c
index 7245611ec963..6a5b9801396a 100644
--- a/drivers/video/fbdev/pxafb.c
+++ b/drivers/video/fbdev/pxafb.c
@@ -2286,8 +2286,8 @@ static int pxafb_remove(struct platform_device *dev)
 
        free_pages_exact(fbi->video_mem, fbi->video_mem_size);
 
-       dma_free_writecombine(&dev->dev, fbi->dma_buff_size,
-                       fbi->dma_buff, fbi->dma_buff_phys);
+       dma_free_wc(&dev->dev, fbi->dma_buff_size, fbi->dma_buff,
+                   fbi->dma_buff_phys);
 
        iounmap(fbi->mmio_base);
 
diff --git a/drivers/video/fbdev/s3c-fb.c b/drivers/video/fbdev/s3c-fb.c
index 7e3a05fc47aa..b7e3571c396f 100644
--- a/drivers/video/fbdev/s3c-fb.c
+++ b/drivers/video/fbdev/s3c-fb.c
@@ -1105,8 +1105,7 @@ static int s3c_fb_alloc_memory(struct s3c_fb *sfb, struct 
s3c_fb_win *win)
 
        dev_dbg(sfb->dev, "want %u bytes for window\n", size);
 
-       fbi->screen_base = dma_alloc_writecombine(sfb->dev, size,
-                                                 &map_dma, GFP_KERNEL);
+       fbi->screen_base = dma_alloc_wc(sfb->dev, size, &map_dma, GFP_KERNEL);
        if (!fbi->screen_base)
                return -ENOMEM;
 
@@ -1131,8 +1130,8 @@ static void s3c_fb_free_memory(struct s3c_fb *sfb, struct 
s3c_fb_win *win)
        struct fb_info *fbi = win->fbinfo;
 
        if (fbi->screen_base)
-               dma_free_writecombine(sfb->dev, PAGE_ALIGN(fbi->fix.smem_len),
-                             fbi->screen_base, fbi->fix.smem_start);
+               dma_free_wc(sfb->dev, PAGE_ALIGN(fbi->fix.smem_len),
+                           fbi->screen_base, fbi->fix.smem_start);
 }
 
 /**
diff --git a/drivers/video/fbdev/s3c2410fb.c b/drivers/video/fbdev/s3c2410fb.c
index d6704add1601..0dd86be36afb 100644
--- a/drivers/video/fbdev/s3c2410fb.c
+++ b/drivers/video/fbdev/s3c2410fb.c
@@ -645,8 +645,8 @@ static int s3c2410fb_map_video_memory(struct fb_info *info)
 
        dprintk("map_video_memory(fbi=%p) map_size %u\n", fbi, map_size);
 
-       info->screen_base = dma_alloc_writecombine(fbi->dev, map_size,
-                                                  &map_dma, GFP_KERNEL);
+       info->screen_base = dma_alloc_wc(fbi->dev, map_size, &map_dma,
+                                        GFP_KERNEL);
 
        if (info->screen_base) {
                /* prevent initial garbage on screen */
@@ -667,8 +667,8 @@ static inline void s3c2410fb_unmap_video_memory(struct 
fb_info *info)
 {
        struct s3c2410fb_info *fbi = info->par;
 
-       dma_free_writecombine(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
-                             info->screen_base, info->fix.smem_start);
+       dma_free_wc(fbi->dev, PAGE_ALIGN(info->fix.smem_len),
+                   info->screen_base, info->fix.smem_start);
 }
 
 static inline void modify_gpio(void __iomem *reg,
diff --git a/drivers/video/fbdev/sa1100fb.c b/drivers/video/fbdev/sa1100fb.c
index 89dd7e02197f..66467eb190b2 100644
--- a/drivers/video/fbdev/sa1100fb.c
+++ b/drivers/video/fbdev/sa1100fb.c
@@ -567,8 +567,8 @@ static int sa1100fb_mmap(struct fb_info *info,
 
        if (off < info->fix.smem_len) {
                vma->vm_pgoff += 1; /* skip over the palette */
-               return dma_mmap_writecombine(fbi->dev, vma, fbi->map_cpu,
-                                            fbi->map_dma, fbi->map_size);
+               return dma_mmap_wc(fbi->dev, vma, fbi->map_cpu, fbi->map_dma,
+                                  fbi->map_size);
        }
 
        vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
@@ -1100,8 +1100,8 @@ static int sa1100fb_map_video_memory(struct sa1100fb_info 
*fbi)
         * of the framebuffer.
         */
        fbi->map_size = PAGE_ALIGN(fbi->fb.fix.smem_len + PAGE_SIZE);
-       fbi->map_cpu = dma_alloc_writecombine(fbi->dev, fbi->map_size,
-                                             &fbi->map_dma, GFP_KERNEL);
+       fbi->map_cpu = dma_alloc_wc(fbi->dev, fbi->map_size, &fbi->map_dma,
+                                   GFP_KERNEL);
 
        if (fbi->map_cpu) {
                fbi->fb.screen_base = fbi->map_cpu + PAGE_SIZE;
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index ac07ff090919..1f54e9bd6b34 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -271,26 +271,26 @@ struct dma_attrs;
        dma_unmap_sg(dev, sgl, nents, dir)
 
 #else
-static inline void *dma_alloc_writecombine(struct device *dev, size_t size,
-                                          dma_addr_t *dma_addr, gfp_t gfp)
+static inline void *dma_alloc_wc(struct device *dev, size_t size,
+                                dma_addr_t *dma_addr, gfp_t gfp)
 {
        DEFINE_DMA_ATTRS(attrs);
        dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
        return dma_alloc_attrs(dev, size, dma_addr, gfp, &attrs);
 }
 
-static inline void dma_free_writecombine(struct device *dev, size_t size,
-                                        void *cpu_addr, dma_addr_t dma_addr)
+static inline void dma_free_wc(struct device *dev, size_t size,
+                              void *cpu_addr, dma_addr_t dma_addr)
 {
        DEFINE_DMA_ATTRS(attrs);
        dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
        return dma_free_attrs(dev, size, cpu_addr, dma_addr, &attrs);
 }
 
-static inline int dma_mmap_writecombine(struct device *dev,
-                                       struct vm_area_struct *vma,
-                                       void *cpu_addr, dma_addr_t dma_addr,
-                                       size_t size)
+static inline int dma_mmap_wc(struct device *dev,
+                             struct vm_area_struct *vma,
+                             void *cpu_addr, dma_addr_t dma_addr,
+                             size_t size)
 {
        DEFINE_DMA_ATTRS(attrs);
        dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
diff --git a/sound/arm/pxa2xx-pcm-lib.c b/sound/arm/pxa2xx-pcm-lib.c
index 01f8fdc42b1b..5596f7cc8e73 100644
--- a/sound/arm/pxa2xx-pcm-lib.c
+++ b/sound/arm/pxa2xx-pcm-lib.c
@@ -238,8 +238,8 @@ int __pxa2xx_pcm_open(struct snd_pcm_substream *substream)
        if (!rtd)
                goto out;
        rtd->dma_desc_array =
-               dma_alloc_writecombine(substream->pcm->card->dev, PAGE_SIZE,
-                                      &rtd->dma_desc_array_phys, GFP_KERNEL);
+               dma_alloc_wc(substream->pcm->card->dev, PAGE_SIZE,
+                            &rtd->dma_desc_array_phys, GFP_KERNEL);
        if (!rtd->dma_desc_array)
                goto err1;
 
@@ -259,8 +259,8 @@ int __pxa2xx_pcm_close(struct snd_pcm_substream *substream)
        struct snd_pcm_runtime *runtime = substream->runtime;
        struct pxa2xx_runtime_data *rtd = runtime->private_data;
 
-       dma_free_writecombine(substream->pcm->card->dev, PAGE_SIZE,
-                             rtd->dma_desc_array, rtd->dma_desc_array_phys);
+       dma_free_wc(substream->pcm->card->dev, PAGE_SIZE,
+                   rtd->dma_desc_array, rtd->dma_desc_array_phys);
        kfree(rtd);
        return 0;
 }
@@ -270,10 +270,8 @@ int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream,
        struct vm_area_struct *vma)
 {
        struct snd_pcm_runtime *runtime = substream->runtime;
-       return dma_mmap_writecombine(substream->pcm->card->dev, vma,
-                                    runtime->dma_area,
-                                    runtime->dma_addr,
-                                    runtime->dma_bytes);
+       return dma_mmap_wc(substream->pcm->card->dev, vma, runtime->dma_area,
+                          runtime->dma_addr, runtime->dma_bytes);
 }
 EXPORT_SYMBOL(pxa2xx_pcm_mmap);
 
@@ -285,8 +283,7 @@ int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, 
int stream)
        buf->dev.type = SNDRV_DMA_TYPE_DEV;
        buf->dev.dev = pcm->card->dev;
        buf->private_data = NULL;
-       buf->area = dma_alloc_writecombine(pcm->card->dev, size,
-                                          &buf->addr, GFP_KERNEL);
+       buf->area = dma_alloc_wc(pcm->card->dev, size, &buf->addr, GFP_KERNEL);
        if (!buf->area)
                return -ENOMEM;
        buf->bytes = size;
@@ -307,8 +304,7 @@ void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm)
                buf = &substream->dma_buffer;
                if (!buf->area)
                        continue;
-               dma_free_writecombine(pcm->card->dev, buf->bytes,
-                                     buf->area, buf->addr);
+               dma_free_wc(pcm->card->dev, buf->bytes, buf->area, buf->addr);
                buf->area = NULL;
        }
 }
diff --git a/sound/soc/fsl/imx-pcm-fiq.c b/sound/soc/fsl/imx-pcm-fiq.c
index 7abf6a079574..ccdc4380d86a 100644
--- a/sound/soc/fsl/imx-pcm-fiq.c
+++ b/sound/soc/fsl/imx-pcm-fiq.c
@@ -217,8 +217,8 @@ static int snd_imx_pcm_mmap(struct snd_pcm_substream 
*substream,
        struct snd_pcm_runtime *runtime = substream->runtime;
        int ret;
 
-       ret = dma_mmap_writecombine(substream->pcm->card->dev, vma,
-               runtime->dma_area, runtime->dma_addr, runtime->dma_bytes);
+       ret = dma_mmap_wc(substream->pcm->card->dev, vma, runtime->dma_area,
+                         runtime->dma_addr, runtime->dma_bytes);
 
        pr_debug("%s: ret: %d %p 0x%08x 0x%08x\n", __func__, ret,
                        runtime->dma_area,
@@ -247,8 +247,7 @@ static int imx_pcm_preallocate_dma_buffer(struct snd_pcm 
*pcm, int stream)
        buf->dev.type = SNDRV_DMA_TYPE_DEV;
        buf->dev.dev = pcm->card->dev;
        buf->private_data = NULL;
-       buf->area = dma_alloc_writecombine(pcm->card->dev, size,
-                                          &buf->addr, GFP_KERNEL);
+       buf->area = dma_alloc_wc(pcm->card->dev, size, &buf->addr, GFP_KERNEL);
        if (!buf->area)
                return -ENOMEM;
        buf->bytes = size;
@@ -330,8 +329,7 @@ static void imx_pcm_free(struct snd_pcm *pcm)
                if (!buf->area)
                        continue;
 
-               dma_free_writecombine(pcm->card->dev, buf->bytes,
-                                     buf->area, buf->addr);
+               dma_free_wc(pcm->card->dev, buf->bytes, buf->area, buf->addr);
                buf->area = NULL;
        }
 }
diff --git a/sound/soc/nuc900/nuc900-pcm.c b/sound/soc/nuc900/nuc900-pcm.c
index 5ae5ca15b6d6..cd8175afa900 100644
--- a/sound/soc/nuc900/nuc900-pcm.c
+++ b/sound/soc/nuc900/nuc900-pcm.c
@@ -267,10 +267,8 @@ static int nuc900_dma_mmap(struct snd_pcm_substream 
*substream,
 {
        struct snd_pcm_runtime *runtime = substream->runtime;
 
-       return dma_mmap_writecombine(substream->pcm->card->dev, vma,
-                                       runtime->dma_area,
-                                       runtime->dma_addr,
-                                       runtime->dma_bytes);
+       return dma_mmap_wc(substream->pcm->card->dev, vma, runtime->dma_area,
+                          runtime->dma_addr, runtime->dma_bytes);
 }
 
 static struct snd_pcm_ops nuc900_dma_ops = {
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 6bb623a2a4df..99381a27295b 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -156,10 +156,8 @@ static int omap_pcm_mmap(struct snd_pcm_substream 
*substream,
 {
        struct snd_pcm_runtime *runtime = substream->runtime;
 
-       return dma_mmap_writecombine(substream->pcm->card->dev, vma,
-                                    runtime->dma_area,
-                                    runtime->dma_addr,
-                                    runtime->dma_bytes);
+       return dma_mmap_wc(substream->pcm->card->dev, vma, runtime->dma_area,
+                          runtime->dma_addr, runtime->dma_bytes);
 }
 
 static struct snd_pcm_ops omap_pcm_ops = {
@@ -183,8 +181,7 @@ static int omap_pcm_preallocate_dma_buffer(struct snd_pcm 
*pcm,
        buf->dev.type = SNDRV_DMA_TYPE_DEV;
        buf->dev.dev = pcm->card->dev;
        buf->private_data = NULL;
-       buf->area = dma_alloc_writecombine(pcm->card->dev, size,
-                                          &buf->addr, GFP_KERNEL);
+       buf->area = dma_alloc_wc(pcm->card->dev, size, &buf->addr, GFP_KERNEL);
        if (!buf->area)
                return -ENOMEM;
 
@@ -207,8 +204,7 @@ static void omap_pcm_free_dma_buffers(struct snd_pcm *pcm)
                if (!buf->area)
                        continue;
 
-               dma_free_writecombine(pcm->card->dev, buf->bytes,
-                                     buf->area, buf->addr);
+               dma_free_wc(pcm->card->dev, buf->bytes, buf->area, buf->addr);
                buf->area = NULL;
        }
 }
-- 
2.4.3


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