| Message ID | 20200504010912.982044-12-ira.weiny@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Subject: Remove duplicated kmap code | expand |
On Mon, May 4, 2020 at 3:09 AM <ira.weiny@intel.com> wrote: > > From: Ira Weiny <ira.weiny@intel.com> > > kmap_atomic_prot() is now exported by all architectures. Use this > function rather than open coding a driver specific kmap_atomic. > > Reviewed-by: Christian König <christian.koenig@amd.com> > Reviewed-by: Christoph Hellwig <hch@lst.de> > Signed-off-by: Ira Weiny <ira.weiny@intel.com> I'm assuming this lands through some other tree or a topic branch or whatever. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cheers, Daniel > --- > drivers/gpu/drm/ttm/ttm_bo_util.c | 56 ++-------------------------- > drivers/gpu/drm/vmwgfx/vmwgfx_blit.c | 16 ++++---- > include/drm/ttm/ttm_bo_api.h | 4 -- > 3 files changed, 12 insertions(+), 64 deletions(-) > > diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c > index 52d2b71f1588..f09b096ba4fd 100644 > --- a/drivers/gpu/drm/ttm/ttm_bo_util.c > +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c > @@ -257,54 +257,6 @@ static int ttm_copy_io_page(void *dst, void *src, unsigned long page) > return 0; > } > > -#ifdef CONFIG_X86 > -#define __ttm_kmap_atomic_prot(__page, __prot) kmap_atomic_prot(__page, __prot) > -#define __ttm_kunmap_atomic(__addr) kunmap_atomic(__addr) > -#else > -#define __ttm_kmap_atomic_prot(__page, __prot) vmap(&__page, 1, 0, __prot) > -#define __ttm_kunmap_atomic(__addr) vunmap(__addr) > -#endif > - > - > -/** > - * ttm_kmap_atomic_prot - Efficient kernel map of a single page with > - * specified page protection. > - * > - * @page: The page to map. > - * @prot: The page protection. > - * > - * This function maps a TTM page using the kmap_atomic api if available, > - * otherwise falls back to vmap. The user must make sure that the > - * specified page does not have an aliased mapping with a different caching > - * policy unless the architecture explicitly allows it. Also mapping and > - * unmapping using this api must be correctly nested. Unmapping should > - * occur in the reverse order of mapping. > - */ > -void *ttm_kmap_atomic_prot(struct page *page, pgprot_t prot) > -{ > - if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) > - return kmap_atomic(page); > - else > - return __ttm_kmap_atomic_prot(page, prot); > -} > -EXPORT_SYMBOL(ttm_kmap_atomic_prot); > - > -/** > - * ttm_kunmap_atomic_prot - Unmap a page that was mapped using > - * ttm_kmap_atomic_prot. > - * > - * @addr: The virtual address from the map. > - * @prot: The page protection. > - */ > -void ttm_kunmap_atomic_prot(void *addr, pgprot_t prot) > -{ > - if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) > - kunmap_atomic(addr); > - else > - __ttm_kunmap_atomic(addr); > -} > -EXPORT_SYMBOL(ttm_kunmap_atomic_prot); > - > static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src, > unsigned long page, > pgprot_t prot) > @@ -316,13 +268,13 @@ static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src, > return -ENOMEM; > > src = (void *)((unsigned long)src + (page << PAGE_SHIFT)); > - dst = ttm_kmap_atomic_prot(d, prot); > + dst = kmap_atomic_prot(d, prot); > if (!dst) > return -ENOMEM; > > memcpy_fromio(dst, src, PAGE_SIZE); > > - ttm_kunmap_atomic_prot(dst, prot); > + kunmap_atomic(dst); > > return 0; > } > @@ -338,13 +290,13 @@ static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst, > return -ENOMEM; > > dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT)); > - src = ttm_kmap_atomic_prot(s, prot); > + src = kmap_atomic_prot(s, prot); > if (!src) > return -ENOMEM; > > memcpy_toio(dst, src, PAGE_SIZE); > > - ttm_kunmap_atomic_prot(src, prot); > + kunmap_atomic(src); > > return 0; > } > diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c > index bb46ca0c458f..94d456a1d1a9 100644 > --- a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c > +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c > @@ -374,12 +374,12 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d, > copy_size = min_t(u32, copy_size, PAGE_SIZE - src_page_offset); > > if (unmap_src) { > - ttm_kunmap_atomic_prot(d->src_addr, d->src_prot); > + kunmap_atomic(d->src_addr); > d->src_addr = NULL; > } > > if (unmap_dst) { > - ttm_kunmap_atomic_prot(d->dst_addr, d->dst_prot); > + kunmap_atomic(d->dst_addr); > d->dst_addr = NULL; > } > > @@ -388,8 +388,8 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d, > return -EINVAL; > > d->dst_addr = > - ttm_kmap_atomic_prot(d->dst_pages[dst_page], > - d->dst_prot); > + kmap_atomic_prot(d->dst_pages[dst_page], > + d->dst_prot); > if (!d->dst_addr) > return -ENOMEM; > > @@ -401,8 +401,8 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d, > return -EINVAL; > > d->src_addr = > - ttm_kmap_atomic_prot(d->src_pages[src_page], > - d->src_prot); > + kmap_atomic_prot(d->src_pages[src_page], > + d->src_prot); > if (!d->src_addr) > return -ENOMEM; > > @@ -499,9 +499,9 @@ int vmw_bo_cpu_blit(struct ttm_buffer_object *dst, > } > out: > if (d.src_addr) > - ttm_kunmap_atomic_prot(d.src_addr, d.src_prot); > + kunmap_atomic(d.src_addr); > if (d.dst_addr) > - ttm_kunmap_atomic_prot(d.dst_addr, d.dst_prot); > + kunmap_atomic(d.dst_addr); > > return ret; > } > diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h > index 0a9d042e075a..de1ccdcd5703 100644 > --- a/include/drm/ttm/ttm_bo_api.h > +++ b/include/drm/ttm/ttm_bo_api.h > @@ -668,10 +668,6 @@ int ttm_bo_mmap_obj(struct vm_area_struct *vma, struct ttm_buffer_object *bo); > int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma, > struct ttm_bo_device *bdev); > > -void *ttm_kmap_atomic_prot(struct page *page, pgprot_t prot); > - > -void ttm_kunmap_atomic_prot(void *addr, pgprot_t prot); > - > /** > * ttm_bo_io > * > -- > 2.25.1 > > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel
On Mon, May 04, 2020 at 01:18:51PM +0200, Daniel Vetter wrote: > On Mon, May 4, 2020 at 3:09 AM <ira.weiny@intel.com> wrote: > > > > From: Ira Weiny <ira.weiny@intel.com> > > > > kmap_atomic_prot() is now exported by all architectures. Use this > > function rather than open coding a driver specific kmap_atomic. > > > > Reviewed-by: Christian König <christian.koenig@amd.com> > > Reviewed-by: Christoph Hellwig <hch@lst.de> > > Signed-off-by: Ira Weiny <ira.weiny@intel.com> > > I'm assuming this lands through some other tree or a topic branch or whatever. Yes I think Andrew queued this up before and so I hope he will continue to do so with the subsequent versions. Andrew, LMK if this is an issue. Thanks, Ira > > Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> > > Cheers, Daniel > > > --- > > drivers/gpu/drm/ttm/ttm_bo_util.c | 56 ++-------------------------- > > drivers/gpu/drm/vmwgfx/vmwgfx_blit.c | 16 ++++---- > > include/drm/ttm/ttm_bo_api.h | 4 -- > > 3 files changed, 12 insertions(+), 64 deletions(-) > > > > diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c > > index 52d2b71f1588..f09b096ba4fd 100644 > > --- a/drivers/gpu/drm/ttm/ttm_bo_util.c > > +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c > > @@ -257,54 +257,6 @@ static int ttm_copy_io_page(void *dst, void *src, unsigned long page) > > return 0; > > } > > > > -#ifdef CONFIG_X86 > > -#define __ttm_kmap_atomic_prot(__page, __prot) kmap_atomic_prot(__page, __prot) > > -#define __ttm_kunmap_atomic(__addr) kunmap_atomic(__addr) > > -#else > > -#define __ttm_kmap_atomic_prot(__page, __prot) vmap(&__page, 1, 0, __prot) > > -#define __ttm_kunmap_atomic(__addr) vunmap(__addr) > > -#endif > > - > > - > > -/** > > - * ttm_kmap_atomic_prot - Efficient kernel map of a single page with > > - * specified page protection. > > - * > > - * @page: The page to map. > > - * @prot: The page protection. > > - * > > - * This function maps a TTM page using the kmap_atomic api if available, > > - * otherwise falls back to vmap. The user must make sure that the > > - * specified page does not have an aliased mapping with a different caching > > - * policy unless the architecture explicitly allows it. Also mapping and > > - * unmapping using this api must be correctly nested. Unmapping should > > - * occur in the reverse order of mapping. > > - */ > > -void *ttm_kmap_atomic_prot(struct page *page, pgprot_t prot) > > -{ > > - if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) > > - return kmap_atomic(page); > > - else > > - return __ttm_kmap_atomic_prot(page, prot); > > -} > > -EXPORT_SYMBOL(ttm_kmap_atomic_prot); > > - > > -/** > > - * ttm_kunmap_atomic_prot - Unmap a page that was mapped using > > - * ttm_kmap_atomic_prot. > > - * > > - * @addr: The virtual address from the map. > > - * @prot: The page protection. > > - */ > > -void ttm_kunmap_atomic_prot(void *addr, pgprot_t prot) > > -{ > > - if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) > > - kunmap_atomic(addr); > > - else > > - __ttm_kunmap_atomic(addr); > > -} > > -EXPORT_SYMBOL(ttm_kunmap_atomic_prot); > > - > > static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src, > > unsigned long page, > > pgprot_t prot) > > @@ -316,13 +268,13 @@ static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src, > > return -ENOMEM; > > > > src = (void *)((unsigned long)src + (page << PAGE_SHIFT)); > > - dst = ttm_kmap_atomic_prot(d, prot); > > + dst = kmap_atomic_prot(d, prot); > > if (!dst) > > return -ENOMEM; > > > > memcpy_fromio(dst, src, PAGE_SIZE); > > > > - ttm_kunmap_atomic_prot(dst, prot); > > + kunmap_atomic(dst); > > > > return 0; > > } > > @@ -338,13 +290,13 @@ static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst, > > return -ENOMEM; > > > > dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT)); > > - src = ttm_kmap_atomic_prot(s, prot); > > + src = kmap_atomic_prot(s, prot); > > if (!src) > > return -ENOMEM; > > > > memcpy_toio(dst, src, PAGE_SIZE); > > > > - ttm_kunmap_atomic_prot(src, prot); > > + kunmap_atomic(src); > > > > return 0; > > } > > diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c > > index bb46ca0c458f..94d456a1d1a9 100644 > > --- a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c > > +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c > > @@ -374,12 +374,12 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d, > > copy_size = min_t(u32, copy_size, PAGE_SIZE - src_page_offset); > > > > if (unmap_src) { > > - ttm_kunmap_atomic_prot(d->src_addr, d->src_prot); > > + kunmap_atomic(d->src_addr); > > d->src_addr = NULL; > > } > > > > if (unmap_dst) { > > - ttm_kunmap_atomic_prot(d->dst_addr, d->dst_prot); > > + kunmap_atomic(d->dst_addr); > > d->dst_addr = NULL; > > } > > > > @@ -388,8 +388,8 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d, > > return -EINVAL; > > > > d->dst_addr = > > - ttm_kmap_atomic_prot(d->dst_pages[dst_page], > > - d->dst_prot); > > + kmap_atomic_prot(d->dst_pages[dst_page], > > + d->dst_prot); > > if (!d->dst_addr) > > return -ENOMEM; > > > > @@ -401,8 +401,8 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d, > > return -EINVAL; > > > > d->src_addr = > > - ttm_kmap_atomic_prot(d->src_pages[src_page], > > - d->src_prot); > > + kmap_atomic_prot(d->src_pages[src_page], > > + d->src_prot); > > if (!d->src_addr) > > return -ENOMEM; > > > > @@ -499,9 +499,9 @@ int vmw_bo_cpu_blit(struct ttm_buffer_object *dst, > > } > > out: > > if (d.src_addr) > > - ttm_kunmap_atomic_prot(d.src_addr, d.src_prot); > > + kunmap_atomic(d.src_addr); > > if (d.dst_addr) > > - ttm_kunmap_atomic_prot(d.dst_addr, d.dst_prot); > > + kunmap_atomic(d.dst_addr); > > > > return ret; > > } > > diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h > > index 0a9d042e075a..de1ccdcd5703 100644 > > --- a/include/drm/ttm/ttm_bo_api.h > > +++ b/include/drm/ttm/ttm_bo_api.h > > @@ -668,10 +668,6 @@ int ttm_bo_mmap_obj(struct vm_area_struct *vma, struct ttm_buffer_object *bo); > > int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma, > > struct ttm_bo_device *bdev); > > > > -void *ttm_kmap_atomic_prot(struct page *page, pgprot_t prot); > > - > > -void ttm_kunmap_atomic_prot(void *addr, pgprot_t prot); > > - > > /** > > * ttm_bo_io > > * > > -- > > 2.25.1 > > > > _______________________________________________ > > dri-devel mailing list > > dri-devel@lists.freedesktop.org > > https://lists.freedesktop.org/mailman/listinfo/dri-devel > > > > -- > Daniel Vetter > Software Engineer, Intel Corporation > +41 (0) 79 365 57 48 - http://blog.ffwll.ch
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 52d2b71f1588..f09b096ba4fd 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -257,54 +257,6 @@ static int ttm_copy_io_page(void *dst, void *src, unsigned long page) return 0; } -#ifdef CONFIG_X86 -#define __ttm_kmap_atomic_prot(__page, __prot) kmap_atomic_prot(__page, __prot) -#define __ttm_kunmap_atomic(__addr) kunmap_atomic(__addr) -#else -#define __ttm_kmap_atomic_prot(__page, __prot) vmap(&__page, 1, 0, __prot) -#define __ttm_kunmap_atomic(__addr) vunmap(__addr) -#endif - - -/** - * ttm_kmap_atomic_prot - Efficient kernel map of a single page with - * specified page protection. - * - * @page: The page to map. - * @prot: The page protection. - * - * This function maps a TTM page using the kmap_atomic api if available, - * otherwise falls back to vmap. The user must make sure that the - * specified page does not have an aliased mapping with a different caching - * policy unless the architecture explicitly allows it. Also mapping and - * unmapping using this api must be correctly nested. Unmapping should - * occur in the reverse order of mapping. - */ -void *ttm_kmap_atomic_prot(struct page *page, pgprot_t prot) -{ - if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) - return kmap_atomic(page); - else - return __ttm_kmap_atomic_prot(page, prot); -} -EXPORT_SYMBOL(ttm_kmap_atomic_prot); - -/** - * ttm_kunmap_atomic_prot - Unmap a page that was mapped using - * ttm_kmap_atomic_prot. - * - * @addr: The virtual address from the map. - * @prot: The page protection. - */ -void ttm_kunmap_atomic_prot(void *addr, pgprot_t prot) -{ - if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) - kunmap_atomic(addr); - else - __ttm_kunmap_atomic(addr); -} -EXPORT_SYMBOL(ttm_kunmap_atomic_prot); - static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src, unsigned long page, pgprot_t prot) @@ -316,13 +268,13 @@ static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src, return -ENOMEM; src = (void *)((unsigned long)src + (page << PAGE_SHIFT)); - dst = ttm_kmap_atomic_prot(d, prot); + dst = kmap_atomic_prot(d, prot); if (!dst) return -ENOMEM; memcpy_fromio(dst, src, PAGE_SIZE); - ttm_kunmap_atomic_prot(dst, prot); + kunmap_atomic(dst); return 0; } @@ -338,13 +290,13 @@ static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst, return -ENOMEM; dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT)); - src = ttm_kmap_atomic_prot(s, prot); + src = kmap_atomic_prot(s, prot); if (!src) return -ENOMEM; memcpy_toio(dst, src, PAGE_SIZE); - ttm_kunmap_atomic_prot(src, prot); + kunmap_atomic(src); return 0; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c index bb46ca0c458f..94d456a1d1a9 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c @@ -374,12 +374,12 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d, copy_size = min_t(u32, copy_size, PAGE_SIZE - src_page_offset); if (unmap_src) { - ttm_kunmap_atomic_prot(d->src_addr, d->src_prot); + kunmap_atomic(d->src_addr); d->src_addr = NULL; } if (unmap_dst) { - ttm_kunmap_atomic_prot(d->dst_addr, d->dst_prot); + kunmap_atomic(d->dst_addr); d->dst_addr = NULL; } @@ -388,8 +388,8 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d, return -EINVAL; d->dst_addr = - ttm_kmap_atomic_prot(d->dst_pages[dst_page], - d->dst_prot); + kmap_atomic_prot(d->dst_pages[dst_page], + d->dst_prot); if (!d->dst_addr) return -ENOMEM; @@ -401,8 +401,8 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d, return -EINVAL; d->src_addr = - ttm_kmap_atomic_prot(d->src_pages[src_page], - d->src_prot); + kmap_atomic_prot(d->src_pages[src_page], + d->src_prot); if (!d->src_addr) return -ENOMEM; @@ -499,9 +499,9 @@ int vmw_bo_cpu_blit(struct ttm_buffer_object *dst, } out: if (d.src_addr) - ttm_kunmap_atomic_prot(d.src_addr, d.src_prot); + kunmap_atomic(d.src_addr); if (d.dst_addr) - ttm_kunmap_atomic_prot(d.dst_addr, d.dst_prot); + kunmap_atomic(d.dst_addr); return ret; } diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 0a9d042e075a..de1ccdcd5703 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -668,10 +668,6 @@ int ttm_bo_mmap_obj(struct vm_area_struct *vma, struct ttm_buffer_object *bo); int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma, struct ttm_bo_device *bdev); -void *ttm_kmap_atomic_prot(struct page *page, pgprot_t prot); - -void ttm_kunmap_atomic_prot(void *addr, pgprot_t prot); - /** * ttm_bo_io *