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Merge branch 'mm-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Browse Source 
Pull dma_*_writecombine rename from Ingo Molnar:
 "Rename dma_*_writecombine() to dma_*_wc()

  This is a tree-wide API rename, to move the dma_*() write-combining
  APIs closer in name to their usual API families.  (The old API names
  are kept as compatibility wrappers to not introduce extra breakage.)

  The patch was Coccinelle generated"

* 'mm-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc()
This commit is contained in:
Linus Torvalds 2016-03-14 16:31:41 -07:00
commit 5ec942463b
38 changed files with 176 additions and 197 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
arch/arm/mach-lpc32xx/phy3250.c
View File

@ -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);
}
/*

14
arch/arm/mach-netx/fb.c
View File

@ -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);

13
arch/arm/mach-nspire/clcd.c
View File

@ -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);
}

8
drivers/dma/iop-adma.c
View File

@ -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;

4
drivers/dma/mv_xor.c
View File

@ -964,8 +964,8 @@ 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);

14
drivers/dma/qcom_bam_dma.c
View File

@ -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);

13
drivers/gpu/drm/drm_gem_cma_helper.c
View File

@ -109,8 +109,8 @@ 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);
@ -192,8 +192,8 @@ 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);
}
@ -324,9 +324,8 @@ 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);

8
drivers/gpu/drm/etnaviv/etnaviv_gpu.c
View File

@ -1113,8 +1113,8 @@ struct etnaviv_cmdbuf *etnaviv_gpu_cmdbuf_new(struct etnaviv_gpu *gpu, u32 size,
if (!cmdbuf)
return NULL;
cmdbuf->vaddr = dma_alloc_writecombine(gpu->dev, size, &cmdbuf->paddr,
GFP_KERNEL);
cmdbuf->vaddr = dma_alloc_wc(gpu->dev, size, &cmdbuf->paddr,
GFP_KERNEL);
if (!cmdbuf->vaddr) {
kfree(cmdbuf);
return NULL;
@ -1128,8 +1128,8 @@ struct etnaviv_cmdbuf *etnaviv_gpu_cmdbuf_new(struct etnaviv_gpu *gpu, u32 size,
void etnaviv_gpu_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf)
{
dma_free_writecombine(cmdbuf->gpu->dev, cmdbuf->size,
cmdbuf->vaddr, cmdbuf->paddr);
dma_free_wc(cmdbuf->gpu->dev, cmdbuf->size, cmdbuf->vaddr,
cmdbuf->paddr);
kfree(cmdbuf);
}

13
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
View File

@ -573,10 +573,9 @@ 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);
@ -701,9 +700,9 @@ 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;

8
drivers/gpu/drm/omapdrm/omap_gem.c
View File

@ -1330,8 +1330,8 @@ 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);
}
@ -1395,8 +1395,8 @@ 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);

20
drivers/gpu/drm/sti/sti_cursor.c
View File

@ -157,17 +157,15 @@ static void sti_cursor_atomic_update(struct drm_plane *drm_plane,
cursor->height = src_h;
if (cursor->pixmap.base)
dma_free_writecombine(cursor->dev,
cursor->pixmap.size,
cursor->pixmap.base,
cursor->pixmap.paddr);
dma_free_wc(cursor->dev, cursor->pixmap.size,
cursor->pixmap.base, cursor->pixmap.paddr);
cursor->pixmap.size = cursor->width * cursor->height;
cursor->pixmap.base = dma_alloc_writecombine(cursor->dev,
cursor->pixmap.size,
&cursor->pixmap.paddr,
GFP_KERNEL | GFP_DMA);
cursor->pixmap.base = dma_alloc_wc(cursor->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;
@ -252,8 +250,8 @@ struct drm_plane *sti_cursor_create(struct drm_device *drm_dev,
/* Allocate clut buffer */
size = 0x100 * sizeof(unsigned short);
cursor->clut = dma_alloc_writecombine(dev, size, &cursor->clut_paddr,
GFP_KERNEL | GFP_DMA);
cursor->clut = dma_alloc_wc(dev, size, &cursor->clut_paddr,
GFP_KERNEL | GFP_DMA);
if (!cursor->clut) {
DRM_ERROR("Failed to allocate memory for cursor clut\n");
@ -286,7 +284,7 @@ struct drm_plane *sti_cursor_create(struct drm_device *drm_dev,
return &cursor->plane.drm_plane;
err_plane:
dma_free_writecombine(dev, size, cursor->clut, cursor->clut_paddr);
dma_free_wc(dev, size, cursor->clut, cursor->clut_paddr);
err_clut:
devm_kfree(dev, cursor);
return NULL;

3
drivers/gpu/drm/sti/sti_gdp.c
View File

@ -312,8 +312,7 @@ static void sti_gdp_init(struct sti_gdp *gdp)
/* 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(gdp->dev,
size, &dma_addr, GFP_KERNEL | GFP_DMA);
base = dma_alloc_wc(gdp->dev, size, &dma_addr, GFP_KERNEL | GFP_DMA);
if (!base) {
DRM_ERROR("Failed to allocate memory for GDP node\n");

6
drivers/gpu/drm/sti/sti_hqvdp.c
View File

@ -617,9 +617,9 @@ static void sti_hqvdp_init(struct sti_hqvdp *hqvdp)
/* 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;

11
drivers/gpu/drm/tegra/gem.c
View File

@ -175,8 +175,7 @@ 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);
}
}
@ -233,8 +232,8 @@ 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",
@ -472,8 +471,8 @@ 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;

5
drivers/gpu/drm/vc4/vc4_bo.c
View File

@ -398,9 +398,8 @@ int vc4_mmap(struct file *filp, struct vm_area_struct *vma)
vma->vm_flags &= ~VM_PFNMAP;
vma->vm_pgoff = 0;
ret = dma_mmap_writecombine(bo->base.base.dev->dev, vma,
bo->base.vaddr, bo->base.paddr,
vma->vm_end - vma->vm_start);
ret = dma_mmap_wc(bo->base.base.dev->dev, vma, bo->base.vaddr,
bo->base.paddr, vma->vm_end - vma->vm_start);
if (ret)
drm_gem_vm_close(vma);

8
drivers/gpu/host1x/cdma.c
View File

@ -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;

10
drivers/gpu/host1x/job.c
View File

@ -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);

10
drivers/media/platform/coda/coda-bit.c
View File

@ -1455,9 +1455,9 @@ 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");
@ -1474,8 +1474,8 @@ 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);
}

4
drivers/video/fbdev/acornfb.c
View File

@ -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");

14
drivers/video/fbdev/amba-clcd-versatile.c
View File

@ -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);
}

4
drivers/video/fbdev/amba-clcd.c
View File

@ -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)

9
drivers/video/fbdev/atmel_lcdfb.c
View File

@ -414,8 +414,8 @@ 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);
}
/**
@ -435,8 +435,9 @@ 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;

8
drivers/video/fbdev/ep93xx-fb.c
View File

@ -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;
@ -428,8 +427,7 @@ static int ep93xxfb_alloc_videomem(struct fb_info *info)
/* Maximum 16bpp -> used memory is maximum x*y*2 bytes */
fb_size = EP93XXFB_MAX_XRES * EP93XXFB_MAX_YRES * 2;
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;

8
drivers/video/fbdev/gbefb.c
View File

@ -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));

12
drivers/video/fbdev/imxfb.c
View File

@ -937,8 +937,8 @@ 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);
@ -1005,8 +1005,8 @@ 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:
@ -1041,8 +1041,8 @@ 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));

9
drivers/video/fbdev/mx3fb.c
View File

@ -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);

8
drivers/video/fbdev/nuc900fb.c
View File

@ -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)

16
drivers/video/fbdev/omap/lcdc.c
View File

@ -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)

8
drivers/video/fbdev/pxa168fb.c
View File

@ -680,8 +680,8 @@ 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;
@ -804,8 +804,8 @@ 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);

4
drivers/video/fbdev/pxafb.c
View File

@ -2446,8 +2446,8 @@ 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);

7
drivers/video/fbdev/s3c-fb.c
View File

@ -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);
}
/**

8
drivers/video/fbdev/s3c2410fb.c
View File

@ -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,

8
drivers/video/fbdev/sa1100fb.c
View File

@ -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);
@ -1099,8 +1099,8 @@ 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;

25
include/linux/dma-mapping.h
View File

@ -641,31 +641,40 @@ static inline void dmam_release_declared_memory(struct device *dev)
}
#endif /* CONFIG_HAVE_GENERIC_DMA_COHERENT */
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);
}
#ifndef dma_alloc_writecombine
#define dma_alloc_writecombine dma_alloc_wc
#endif
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);
}
#ifndef dma_free_writecombine
#define dma_free_writecombine dma_free_wc
#endif
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);
return dma_mmap_attrs(dev, vma, cpu_addr, dma_addr, size, &attrs);
}
#ifndef dma_mmap_writecombine
#define dma_mmap_writecombine dma_mmap_wc
#endif
#ifdef CONFIG_NEED_DMA_MAP_STATE
#define DEFINE_DMA_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME

12
sound/arm/pxa2xx-pcm-lib.c
View File

@ -141,10 +141,8 @@ 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);
@ -156,8 +154,7 @@ 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;
@ -178,8 +175,7 @@ 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;
}
}

10
sound/soc/fsl/imx-pcm-fiq.c
View File

@ -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 %pad 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;
}
}

6
sound/soc/nuc900/nuc900-pcm.c
View File

@ -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 = {

12
sound/soc/omap/omap-pcm.c
View File

@ -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;
}
}