drivers/media/platform/sti/hva/hva-mem.h

   1 /*
   2  * Copyright (C) STMicroelectronics SA 2015
   3  * Authors: Yannick Fertre <yannick.fertre@st.com>
   4  *          Hugues Fruchet <hugues.fruchet@st.com>
   5  * License terms:  GNU General Public License (GPL), version 2
   6  */
   7
   8 #ifndef HVA_MEM_H
   9 #define HVA_MEM_H
  10
  11 /**
  12  * struct hva_buffer - hva buffer
  13  *
  14  * @name:  name of requester
  15  * @paddr: physical address (for hardware)
  16  * @vaddr: virtual address (kernel can read/write)
  17  * @size:  size of buffer
  18  */
  19 struct hva_buffer {
  20         const char              *name;
  21         dma_addr_t              paddr;
  22         void                    *vaddr;
  23         u32                     size;
  24 };
  25
  26 int hva_mem_alloc(struct hva_ctx *ctx,
  27                   __u32 size,
  28                   const char *name,
  29                   struct hva_buffer **buf);
  30
  31 void hva_mem_free(struct hva_ctx *ctx,
  32                   struct hva_buffer *buf);
  33
  34 #endif /* HVA_MEM_H */