Hi Marek, I love your patch! Yet something to improve: [auto build test ERROR on next-20200618] [also build test ERROR on v5.8-rc1] [cannot apply to linuxtv-media/master staging/staging-testing drm-exynos/exynos-drm-next drm-intel/for-linux-next linus/master v5.8-rc1 v5.7 v5.7-rc7] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Marek-Szyprowski/DRM-fix-struct-sg_table-nents-vs-orig_nents-misuse/20200619-000417 base: ce2cc8efd7a40cbd17841add878cb691d0ce0bba config: alpha-allyesconfig (attached as .config) compiler: alpha-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): drivers/media/common/videobuf2/videobuf2-dma-sg.c: In function 'vb2_dma_sg_alloc': >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:173:13: error: invalid storage class for function 'vb2_dma_sg_put' 173 | static void vb2_dma_sg_put(void *buf_priv) | ^~~~~~~~~~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:173:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] 173 | static void vb2_dma_sg_put(void *buf_priv) | ^~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:195:13: error: invalid storage class for function 'vb2_dma_sg_prepare' 195 | static void vb2_dma_sg_prepare(void *buf_priv) | ^~~~~~~~~~~~~~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:207:13: error: invalid storage class for function 'vb2_dma_sg_finish' 207 | static void vb2_dma_sg_finish(void *buf_priv) | ^~~~~~~~~~~~~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:219:14: error: invalid storage class for function 'vb2_dma_sg_get_userptr' 219 | static void *vb2_dma_sg_get_userptr(struct device *dev, unsigned long vaddr, | ^~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c: In function 'vb2_dma_sg_get_userptr': >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:278:13: error: invalid storage class for function 'vb2_dma_sg_put_userptr' 278 | static void vb2_dma_sg_put_userptr(void *buf_priv) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:278:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] 278 | static void vb2_dma_sg_put_userptr(void *buf_priv) | ^~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:298:14: error: invalid storage class for function 'vb2_dma_sg_vaddr' 298 | static void *vb2_dma_sg_vaddr(void *buf_priv) | ^~~~~~~~~~~~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:315:21: error: invalid storage class for function 'vb2_dma_sg_num_users' 315 | static unsigned int vb2_dma_sg_num_users(void *buf_priv) | ^~~~~~~~~~~~~~~~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:322:12: error: invalid storage class for function 'vb2_dma_sg_mmap' 322 | static int vb2_dma_sg_mmap(void *buf_priv, struct vm_area_struct *vma) | ^~~~~~~~~~~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:358:12: error: invalid storage class for function 'vb2_dma_sg_dmabuf_ops_attach' 358 | static int vb2_dma_sg_dmabuf_ops_attach(struct dma_buf *dbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:396:13: error: invalid storage class for function 'vb2_dma_sg_dmabuf_ops_detach' 396 | static void vb2_dma_sg_dmabuf_ops_detach(struct dma_buf *dbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c: In function 'vb2_dma_sg_dmabuf_ops_detach': >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:409:3: error: too few arguments to function 'dma_unmap_sgtable' 409 | dma_unmap_sgtable(db_attach->dev, sgt, attach->dma_dir); | ^~~~~~~~~~~~~~~~~ In file included from include/linux/dma-buf.h:20, from include/media/videobuf2-core.h:18, from include/media/videobuf2-v4l2.h:16, from drivers/media/common/videobuf2/videobuf2-dma-sg.c:21: include/linux/dma-mapping.h:651:20: note: declared here 651 | static inline void dma_unmap_sgtable(struct device *dev, struct sg_table *sgt, | ^~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c: In function 'vb2_dma_sg_get_userptr': >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:415:25: error: invalid storage class for function 'vb2_dma_sg_dmabuf_ops_map' 415 | static struct sg_table *vb2_dma_sg_dmabuf_ops_map( | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c: In function 'vb2_dma_sg_dmabuf_ops_map': drivers/media/common/videobuf2/videobuf2-dma-sg.c:434:3: error: too few arguments to function 'dma_unmap_sgtable' 434 | dma_unmap_sgtable(db_attach->dev, sgt, attach->dma_dir); | ^~~~~~~~~~~~~~~~~ In file included from include/linux/dma-buf.h:20, from include/media/videobuf2-core.h:18, from include/media/videobuf2-v4l2.h:16, from drivers/media/common/videobuf2/videobuf2-dma-sg.c:21: include/linux/dma-mapping.h:651:20: note: declared here 651 | static inline void dma_unmap_sgtable(struct device *dev, struct sg_table *sgt, | ^~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c: In function 'vb2_dma_sg_get_userptr': >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:452:13: error: invalid storage class for function 'vb2_dma_sg_dmabuf_ops_unmap' 452 | static void vb2_dma_sg_dmabuf_ops_unmap(struct dma_buf_attachment *db_attach, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:458:13: error: invalid storage class for function 'vb2_dma_sg_dmabuf_ops_release' 458 | static void vb2_dma_sg_dmabuf_ops_release(struct dma_buf *dbuf) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:464:14: error: invalid storage class for function 'vb2_dma_sg_dmabuf_ops_vmap' 464 | static void *vb2_dma_sg_dmabuf_ops_vmap(struct dma_buf *dbuf) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:471:12: error: invalid storage class for function 'vb2_dma_sg_dmabuf_ops_mmap' 471 | static int vb2_dma_sg_dmabuf_ops_mmap(struct dma_buf *dbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:478:12: error: initializer element is not constant 478 | .attach = vb2_dma_sg_dmabuf_ops_attach, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:478:12: note: (near initialization for 'vb2_dma_sg_dmabuf_ops.attach') drivers/media/common/videobuf2/videobuf2-dma-sg.c:479:12: error: initializer element is not constant 479 | .detach = vb2_dma_sg_dmabuf_ops_detach, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:479:12: note: (near initialization for 'vb2_dma_sg_dmabuf_ops.detach') drivers/media/common/videobuf2/videobuf2-dma-sg.c:480:17: error: initializer element is not constant 480 | .map_dma_buf = vb2_dma_sg_dmabuf_ops_map, | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:480:17: note: (near initialization for 'vb2_dma_sg_dmabuf_ops.map_dma_buf') drivers/media/common/videobuf2/videobuf2-dma-sg.c:481:19: error: initializer element is not constant 481 | .unmap_dma_buf = vb2_dma_sg_dmabuf_ops_unmap, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:481:19: note: (near initialization for 'vb2_dma_sg_dmabuf_ops.unmap_dma_buf') drivers/media/common/videobuf2/videobuf2-dma-sg.c:482:10: error: initializer element is not constant 482 | .vmap = vb2_dma_sg_dmabuf_ops_vmap, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:482:10: note: (near initialization for 'vb2_dma_sg_dmabuf_ops.vmap') drivers/media/common/videobuf2/videobuf2-dma-sg.c:483:10: error: initializer element is not constant 483 | .mmap = vb2_dma_sg_dmabuf_ops_mmap, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:483:10: note: (near initialization for 'vb2_dma_sg_dmabuf_ops.mmap') drivers/media/common/videobuf2/videobuf2-dma-sg.c:484:13: error: initializer element is not constant 484 | .release = vb2_dma_sg_dmabuf_ops_release, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:484:13: note: (near initialization for 'vb2_dma_sg_dmabuf_ops.release') >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:487:24: error: invalid storage class for function 'vb2_dma_sg_get_dmabuf' 487 | static struct dma_buf *vb2_dma_sg_get_dmabuf(void *buf_priv, unsigned long flags) | ^~~~~~~~~~~~~~~~~~~~~ >> drivers/media/common/videobuf2/videobuf2-dma-sg.c:515:12: error: invalid storage class for function 'vb2_dma_sg_map_dmabuf' 515 | static int vb2_dma_sg_map_dmabuf(void *mem_priv) | ^~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:543:13: error: invalid storage class for function 'vb2_dma_sg_unmap_dmabuf' 543 | static void vb2_dma_sg_unmap_dmabuf(void *mem_priv) | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:567:13: error: invalid storage class for function 'vb2_dma_sg_detach_dmabuf' 567 | static void vb2_dma_sg_detach_dmabuf(void *mem_priv) | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:580:14: error: invalid storage class for function 'vb2_dma_sg_attach_dmabuf' 580 | static void *vb2_dma_sg_attach_dmabuf(struct device *dev, struct dma_buf *dbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:612:14: error: invalid storage class for function 'vb2_dma_sg_cookie' 612 | static void *vb2_dma_sg_cookie(void *buf_priv) | ^~~~~~~~~~~~~~~~~ In file included from include/linux/linkage.h:7, from include/linux/kernel.h:8, from include/linux/list.h:9, from include/linux/module.h:12, from drivers/media/common/videobuf2/videobuf2-dma-sg.c:13: drivers/media/common/videobuf2/videobuf2-dma-sg.c:636:19: error: extern declaration of 'vb2_dma_sg_memops' follows declaration with no linkage 636 | EXPORT_SYMBOL_GPL(vb2_dma_sg_memops); | ^~~~~~~~~~~~~~~~~ include/linux/export.h:98:21: note: in definition of macro '___EXPORT_SYMBOL' 98 | extern typeof(sym) sym; \ | ^~~ include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL' 155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL' 159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl") | ^~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:636:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL' 636 | EXPORT_SYMBOL_GPL(vb2_dma_sg_memops); | ^~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:619:26: note: previous definition of 'vb2_dma_sg_memops' was here 619 | const struct vb2_mem_ops vb2_dma_sg_memops = { | ^~~~~~~~~~~~~~~~~ In file included from include/linux/linkage.h:7, from include/linux/kernel.h:8, from include/linux/list.h:9, from include/linux/module.h:12, from drivers/media/common/videobuf2/videobuf2-dma-sg.c:13: include/linux/export.h:67:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] 67 | static const struct kernel_symbol __ksymtab_##sym \ | ^~~~~~ include/linux/export.h:108:2: note: in expansion of macro '__KSYMTAB_ENTRY' 108 | __KSYMTAB_ENTRY(sym, sec) | ^~~~~~~~~~~~~~~ include/linux/export.h:147:39: note: in expansion of macro '___EXPORT_SYMBOL' 147 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns) | ^~~~~~~~~~~~~~~~ include/linux/export.h:155:34: note: in expansion of macro '__EXPORT_SYMBOL' 155 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:159:33: note: in expansion of macro '_EXPORT_SYMBOL' 159 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl") | ^~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:636:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL' 636 | EXPORT_SYMBOL_GPL(vb2_dma_sg_memops); | ^~~~~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:640:1: error: expected declaration or statement at end of input 640 | MODULE_LICENSE("GPL"); | ^~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c: In function 'vb2_dma_sg_alloc': drivers/media/common/videobuf2/videobuf2-dma-sg.c:640:1: error: expected declaration or statement at end of input drivers/media/common/videobuf2/videobuf2-dma-sg.c: At top level: drivers/media/common/videobuf2/videobuf2-dma-sg.c:56:13: warning: 'vb2_dma_sg_put' used but never defined 56 | static void vb2_dma_sg_put(void *buf_priv); | ^~~~~~~~~~~~~~ drivers/media/common/videobuf2/videobuf2-dma-sg.c:219:14: warning: 'vb2_dma_sg_get_userptr' defined but not used [-Wunused-function] 219 | static void *vb2_dma_sg_get_userptr(struct device *dev, unsigned long vaddr, | ^~~~~~~~~~~~~~~~~~~~~~ vim +/vb2_dma_sg_put +173 drivers/media/common/videobuf2/videobuf2-dma-sg.c 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 55 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 @56 static void vb2_dma_sg_put(void *buf_priv); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 57 df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 58 static int vb2_dma_sg_alloc_compacted(struct vb2_dma_sg_buf *buf, df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 59 gfp_t gfp_flags) df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 60 { df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 61 unsigned int last_page = 0; 14f28f5cea9e399 drivers/media/common/videobuf2/videobuf2-dma-sg.c Sakari Ailus 2018-12-12 62 unsigned long size = buf->size; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 63 df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 64 while (size > 0) { df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 65 struct page *pages; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 66 int order; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 67 int i; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 68 df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 69 order = get_order(size); 4b129dc907e9b95 drivers/media/common/videobuf2/videobuf2-dma-sg.c Mauro Carvalho Chehab 2019-02-18 70 /* Don't over allocate*/ df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 71 if ((PAGE_SIZE << order) > size) df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 72 order--; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 73 df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 74 pages = NULL; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 75 while (!pages) { df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 76 pages = alloc_pages(GFP_KERNEL | __GFP_ZERO | df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 77 __GFP_NOWARN | gfp_flags, order); df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 78 if (pages) df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 79 break; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 80 df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 81 if (order == 0) { df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 82 while (last_page--) df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 83 __free_page(buf->pages[last_page]); df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 84 return -ENOMEM; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 85 } df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 86 order--; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 87 } df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 88 df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 89 split_page(pages, order); 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 90 for (i = 0; i < (1 << order); i++) 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 91 buf->pages[last_page++] = &pages[i]; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 92 df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 93 size -= PAGE_SIZE << order; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 94 } df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 95 df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 96 return 0; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 97 } df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 98 00085f1efa387a8 drivers/media/v4l2-core/videobuf2-dma-sg.c Krzysztof Kozlowski 2016-08-03 99 static void *vb2_dma_sg_alloc(struct device *dev, unsigned long dma_attrs, d16e832da23edff drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-04-15 100 unsigned long size, enum dma_data_direction dma_dir, d16e832da23edff drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-04-15 101 gfp_t gfp_flags) 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 102 { 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 103 struct vb2_dma_sg_buf *buf; d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 104 struct sg_table *sgt; df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 105 int ret; 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 106 int num_pages; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 107 0ff657b0f6120cb drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-07-21 108 if (WARN_ON(!dev)) 0ff657b0f6120cb drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-07-21 109 return ERR_PTR(-EINVAL); 0ff657b0f6120cb drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-07-21 110 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 111 buf = kzalloc(sizeof *buf, GFP_KERNEL); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 112 if (!buf) 0ff657b0f6120cb drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-07-21 113 return ERR_PTR(-ENOMEM); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 114 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 115 buf->vaddr = NULL; d935c57e8fb6902 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 116 buf->dma_dir = dma_dir; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 117 buf->offset = 0; 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 118 buf->size = size; 7f8414594e47552 drivers/media/v4l2-core/videobuf2-dma-sg.c Mauro Carvalho Chehab 2013-04-19 119 /* size is already page aligned */ 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 120 buf->num_pages = size >> PAGE_SHIFT; e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 121 buf->dma_sgt = &buf->sg_table; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 122 758d90e161382c1 drivers/media/v4l2-core/videobuf2-dma-sg.c Tomasz Figa 2017-06-19 123 buf->pages = kvmalloc_array(buf->num_pages, sizeof(struct page *), 758d90e161382c1 drivers/media/v4l2-core/videobuf2-dma-sg.c Tomasz Figa 2017-06-19 124 GFP_KERNEL | __GFP_ZERO); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 125 if (!buf->pages) 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 126 goto fail_pages_array_alloc; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 127 df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 128 ret = vb2_dma_sg_alloc_compacted(buf, gfp_flags); df23728118cd0f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 129 if (ret) 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 130 goto fail_pages_alloc; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 131 e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 132 ret = sg_alloc_table_from_pages(buf->dma_sgt, buf->pages, 47bc59c52b005f5 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-08-01 133 buf->num_pages, 0, size, GFP_KERNEL); 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 134 if (ret) 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 135 goto fail_table_alloc; 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 136 0c3a14c177aa85a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 137 /* Prevent the device from being released while the buffer is used */ 36c0f8b32c4bd4f drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-04-15 138 buf->dev = get_device(dev); d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 139 d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 140 sgt = &buf->sg_table; 251a79f8f5adfd8 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 141 /* 251a79f8f5adfd8 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 142 * No need to sync to the device, this will happen later when the 251a79f8f5adfd8 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 143 * prepare() memop is called. 251a79f8f5adfd8 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 144 */ b8bd9d592f68e3c drivers/media/common/videobuf2/videobuf2-dma-sg.c Marek Szyprowski 2020-06-18 145 if (dma_map_sgtable(buf->dev, sgt, buf->dma_dir, b8bd9d592f68e3c drivers/media/common/videobuf2/videobuf2-dma-sg.c Marek Szyprowski 2020-06-18 146 DMA_ATTR_SKIP_CPU_SYNC)) { d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 147 goto fail_map; d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 148 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 149 buf->handler.refcount = &buf->refcount; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 150 buf->handler.put = vb2_dma_sg_put; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 151 buf->handler.arg = buf; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 152 6c4bb65d0be8f34 drivers/media/v4l2-core/videobuf2-dma-sg.c Elena Reshetova 2017-03-06 153 refcount_set(&buf->refcount, 1); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 154 ffdc78efe1a8a01 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2013-03-02 155 dprintk(1, "%s: Allocated buffer of %d pages\n", 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 156 __func__, buf->num_pages); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 157 return buf; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 158 d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 159 fail_map: d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 160 put_device(buf->dev); e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 161 sg_free_table(buf->dma_sgt); 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 162 fail_table_alloc: 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 163 num_pages = buf->num_pages; 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 164 while (num_pages--) 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 165 __free_page(buf->pages[num_pages]); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 166 fail_pages_alloc: 758d90e161382c1 drivers/media/v4l2-core/videobuf2-dma-sg.c Tomasz Figa 2017-06-19 167 kvfree(buf->pages); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 168 fail_pages_array_alloc: 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 169 kfree(buf); 0ff657b0f6120cb drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-07-21 170 return ERR_PTR(-ENOMEM); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 171 } 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 172 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 @173 static void vb2_dma_sg_put(void *buf_priv) 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 174 { 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 175 struct vb2_dma_sg_buf *buf = buf_priv; d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 176 struct sg_table *sgt = &buf->sg_table; 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 177 int i = buf->num_pages; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 178 6c4bb65d0be8f34 drivers/media/v4l2-core/videobuf2-dma-sg.c Elena Reshetova 2017-03-06 179 if (refcount_dec_and_test(&buf->refcount)) { ffdc78efe1a8a01 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2013-03-02 180 dprintk(1, "%s: Freeing buffer of %d pages\n", __func__, 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 181 buf->num_pages); b8bd9d592f68e3c drivers/media/common/videobuf2/videobuf2-dma-sg.c Marek Szyprowski 2020-06-18 182 dma_unmap_sgtable(buf->dev, sgt, buf->dma_dir, b8bd9d592f68e3c drivers/media/common/videobuf2/videobuf2-dma-sg.c Marek Szyprowski 2020-06-18 183 DMA_ATTR_SKIP_CPU_SYNC); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 184 if (buf->vaddr) 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 185 vm_unmap_ram(buf->vaddr, buf->num_pages); e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 186 sg_free_table(buf->dma_sgt); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 187 while (--i >= 0) 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 188 __free_page(buf->pages[i]); 758d90e161382c1 drivers/media/v4l2-core/videobuf2-dma-sg.c Tomasz Figa 2017-06-19 189 kvfree(buf->pages); 0c3a14c177aa85a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 190 put_device(buf->dev); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 191 kfree(buf); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 192 } 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 193 } 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 194 d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 @195 static void vb2_dma_sg_prepare(void *buf_priv) d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 196 { d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 197 struct vb2_dma_sg_buf *buf = buf_priv; e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 198 struct sg_table *sgt = buf->dma_sgt; e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 199 e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 200 /* DMABUF exporter will flush the cache for us */ e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 201 if (buf->db_attach) e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 202 return; d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 203 b8bd9d592f68e3c drivers/media/common/videobuf2/videobuf2-dma-sg.c Marek Szyprowski 2020-06-18 204 dma_sync_sgtable_for_device(buf->dev, sgt, buf->dma_dir); d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 205 } d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 206 d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 @207 static void vb2_dma_sg_finish(void *buf_priv) d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 208 { d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 209 struct vb2_dma_sg_buf *buf = buf_priv; e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 210 struct sg_table *sgt = buf->dma_sgt; e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 211 e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 212 /* DMABUF exporter will flush the cache for us */ e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 213 if (buf->db_attach) e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 214 return; d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 215 b8bd9d592f68e3c drivers/media/common/videobuf2/videobuf2-dma-sg.c Marek Szyprowski 2020-06-18 216 dma_sync_sgtable_for_cpu(buf->dev, sgt, buf->dma_dir); d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 217 } d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 218 36c0f8b32c4bd4f drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-04-15 @219 static void *vb2_dma_sg_get_userptr(struct device *dev, unsigned long vaddr, cd474037c4a9a9c drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 220 unsigned long size, cd474037c4a9a9c drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 221 enum dma_data_direction dma_dir) 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 222 { 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 223 struct vb2_dma_sg_buf *buf; d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 224 struct sg_table *sgt; 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 225 struct frame_vector *vec; 251a79f8f5adfd8 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 226 10791829eb52d57 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-07-21 227 if (WARN_ON(!dev)) 10791829eb52d57 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-07-21 228 return ERR_PTR(-EINVAL); 10791829eb52d57 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-07-21 229 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 230 buf = kzalloc(sizeof *buf, GFP_KERNEL); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 231 if (!buf) 0ff657b0f6120cb drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-07-21 232 return ERR_PTR(-ENOMEM); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 233 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 234 buf->vaddr = NULL; 36c0f8b32c4bd4f drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-04-15 235 buf->dev = dev; cd474037c4a9a9c drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 236 buf->dma_dir = dma_dir; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 237 buf->offset = vaddr & ~PAGE_MASK; 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 238 buf->size = size; e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 239 buf->dma_sgt = &buf->sg_table; 707947247e9517b drivers/media/common/videobuf2/videobuf2-dma-sg.c Hans Verkuil 2019-04-04 240 vec = vb2_create_framevec(vaddr, size); 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 241 if (IS_ERR(vec)) 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 242 goto userptr_fail_pfnvec; 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 243 buf->vec = vec; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 244 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 245 buf->pages = frame_vector_pages(vec); 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 246 if (IS_ERR(buf->pages)) 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 247 goto userptr_fail_sgtable; 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 248 buf->num_pages = frame_vector_count(vec); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 249 e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 250 if (sg_alloc_table_from_pages(buf->dma_sgt, buf->pages, 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 251 buf->num_pages, buf->offset, size, 0)) 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 252 goto userptr_fail_sgtable; 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 253 d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 254 sgt = &buf->sg_table; 251a79f8f5adfd8 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 255 /* 251a79f8f5adfd8 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 256 * No need to sync to the device, this will happen later when the 251a79f8f5adfd8 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 257 * prepare() memop is called. 251a79f8f5adfd8 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 258 */ b8bd9d592f68e3c drivers/media/common/videobuf2/videobuf2-dma-sg.c Marek Szyprowski 2020-06-18 259 if (dma_map_sgtable(buf->dev, sgt, buf->dma_dir, b8bd9d592f68e3c drivers/media/common/videobuf2/videobuf2-dma-sg.c Marek Szyprowski 2020-06-18 260 DMA_ATTR_SKIP_CPU_SYNC)) { d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 261 goto userptr_fail_map; 6a5d77cbf26078e drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2015-04-29 262 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 263 return buf; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 264 d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 265 userptr_fail_map: d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 266 sg_free_table(&buf->sg_table); 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 267 userptr_fail_sgtable: 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 268 vb2_destroy_framevec(vec); 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 269 userptr_fail_pfnvec: 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 270 kfree(buf); 0ff657b0f6120cb drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2016-07-21 271 return ERR_PTR(-ENOMEM); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 272 } 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 273 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 274 /* 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 275 * @put_userptr: inform the allocator that a USERPTR buffer will no longer 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 276 * be used 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 277 */ 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 @278 static void vb2_dma_sg_put_userptr(void *buf_priv) 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 279 { 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 280 struct vb2_dma_sg_buf *buf = buf_priv; d790b7eda953df4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-24 281 struct sg_table *sgt = &buf->sg_table; 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 282 int i = buf->num_pages; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 283 ffdc78efe1a8a01 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2013-03-02 284 dprintk(1, "%s: Releasing userspace buffer of %d pages\n", 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 285 __func__, buf->num_pages); b8bd9d592f68e3c drivers/media/common/videobuf2/videobuf2-dma-sg.c Marek Szyprowski 2020-06-18 286 dma_unmap_sgtable(buf->dev, sgt, buf->dma_dir, DMA_ATTR_SKIP_CPU_SYNC); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 287 if (buf->vaddr) 223012475968fb8 drivers/media/v4l2-core/videobuf2-dma-sg.c Ricardo Ribalda 2013-08-02 288 vm_unmap_ram(buf->vaddr, buf->num_pages); e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 289 sg_free_table(buf->dma_sgt); 5b6f9abe5a49df8 drivers/media/v4l2-core/videobuf2-dma-sg.c Stanimir Varbanov 2017-08-21 290 if (buf->dma_dir == DMA_FROM_DEVICE || 5b6f9abe5a49df8 drivers/media/v4l2-core/videobuf2-dma-sg.c Stanimir Varbanov 2017-08-21 291 buf->dma_dir == DMA_BIDIRECTIONAL) c0cb76589c77b9a drivers/media/v4l2-core/videobuf2-dma-sg.c Stanimir Varbanov 2017-08-29 292 while (--i >= 0) 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 293 set_page_dirty_lock(buf->pages[i]); 3336c24f25ec932 drivers/media/v4l2-core/videobuf2-dma-sg.c Jan Kara 2015-07-13 294 vb2_destroy_framevec(buf->vec); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 295 kfree(buf); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 296 } 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 297 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 @298 static void *vb2_dma_sg_vaddr(void *buf_priv) 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 299 { 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 300 struct vb2_dma_sg_buf *buf = buf_priv; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 301 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 302 BUG_ON(!buf); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 303 e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 304 if (!buf->vaddr) { e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 305 if (buf->db_attach) e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 306 buf->vaddr = dma_buf_vmap(buf->db_attach->dmabuf); e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 307 else d4efd79a81abc70 drivers/media/common/videobuf2/videobuf2-dma-sg.c Christoph Hellwig 2020-06-01 308 buf->vaddr = vm_map_ram(buf->pages, buf->num_pages, -1); e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 309 } 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 310 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 311 /* add offset in case userptr is not page-aligned */ e078b79d8aa70a4 drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 312 return buf->vaddr ? buf->vaddr + buf->offset : NULL; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 313 } 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 314 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 @315 static unsigned int vb2_dma_sg_num_users(void *buf_priv) 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 316 { 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 317 struct vb2_dma_sg_buf *buf = buf_priv; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 318 6c4bb65d0be8f34 drivers/media/v4l2-core/videobuf2-dma-sg.c Elena Reshetova 2017-03-06 319 return refcount_read(&buf->refcount); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 320 } 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 321 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 @322 static int vb2_dma_sg_mmap(void *buf_priv, struct vm_area_struct *vma) 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 323 { 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 324 struct vb2_dma_sg_buf *buf = buf_priv; a17ae14766935aa drivers/media/common/videobuf2/videobuf2-dma-sg.c Souptick Joarder 2019-05-13 325 int err; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 326 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 327 if (!buf) { 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 328 printk(KERN_ERR "No memory to map\n"); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 329 return -EINVAL; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 330 } 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 331 a17ae14766935aa drivers/media/common/videobuf2/videobuf2-dma-sg.c Souptick Joarder 2019-05-13 332 err = vm_map_pages(vma, buf->pages, buf->num_pages); a17ae14766935aa drivers/media/common/videobuf2/videobuf2-dma-sg.c Souptick Joarder 2019-05-13 333 if (err) { a17ae14766935aa drivers/media/common/videobuf2/videobuf2-dma-sg.c Souptick Joarder 2019-05-13 334 printk(KERN_ERR "Remapping memory, error: %d\n", err); a17ae14766935aa drivers/media/common/videobuf2/videobuf2-dma-sg.c Souptick Joarder 2019-05-13 335 return err; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 336 } 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 337 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 338 /* 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 339 * Use common vm_area operations to track buffer refcount. 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 340 */ 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 341 vma->vm_private_data = &buf->handler; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 342 vma->vm_ops = &vb2_common_vm_ops; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 343 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 344 vma->vm_ops->open(vma); 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 345 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 346 return 0; 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 347 } 5ba3f757f0592ca drivers/media/video/videobuf2-dma-sg.c Andrzej Pietrasiewicz 2010-11-29 348 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 349 /*********************************************/ 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 350 /* DMABUF ops for exporters */ 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 351 /*********************************************/ 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 352 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 353 struct vb2_dma_sg_attachment { 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 354 struct sg_table sgt; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 355 enum dma_data_direction dma_dir; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 356 }; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 357 a19741e5e5a9f1f drivers/media/common/videobuf2/videobuf2-dma-sg.c Christian König 2018-05-28 @358 static int vb2_dma_sg_dmabuf_ops_attach(struct dma_buf *dbuf, 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 359 struct dma_buf_attachment *dbuf_attach) 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 360 { 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 361 struct vb2_dma_sg_attachment *attach; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 362 unsigned int i; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 363 struct scatterlist *rd, *wr; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 364 struct sg_table *sgt; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 365 struct vb2_dma_sg_buf *buf = dbuf->priv; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 366 int ret; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 367 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 368 attach = kzalloc(sizeof(*attach), GFP_KERNEL); 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 369 if (!attach) 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 370 return -ENOMEM; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 371 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 372 sgt = &attach->sgt; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 373 /* Copy the buf->base_sgt scatter list to the attachment, as we can't 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 374 * map the same scatter list to multiple attachments at the same time. 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 375 */ 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 376 ret = sg_alloc_table(sgt, buf->dma_sgt->orig_nents, GFP_KERNEL); 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 377 if (ret) { 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 378 kfree(attach); 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 379 return -ENOMEM; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 380 } 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 381 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 382 rd = buf->dma_sgt->sgl; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 383 wr = sgt->sgl; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 384 for (i = 0; i < sgt->orig_nents; ++i) { 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 385 sg_set_page(wr, sg_page(rd), rd->length, rd->offset); 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 386 rd = sg_next(rd); 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 387 wr = sg_next(wr); 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 388 } 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 389 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 390 attach->dma_dir = DMA_NONE; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 391 dbuf_attach->priv = attach; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 392 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 393 return 0; 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 394 } 041c7b6ac74ee7a drivers/media/v4l2-core/videobuf2-dma-sg.c Hans Verkuil 2014-11-18 395 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
Attachment:
.config.gz
Description: application/gzip
_______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
