pscnv/pscnv_mm.h

   1 #ifndef PSCNV_MM_H
   2 #define PSCNV_MM_H
   3
   4 #include "drm.h"
   5 #include "pscnv_tree.h"
   6
   7 PSCNV_RB_HEAD(pscnv_mm_head, pscnv_mm_node);
   8
   9 struct pscnv_mm {
  10         struct drm_device *dev;
  11         struct pscnv_mm_head head;
  12         uint32_t spsize;
  13         uint32_t lpsize;
  14         uint32_t tssize;
  15 };
  16
  17 struct pscnv_mm_node {
  18         PSCNV_RB_ENTRY(pscnv_mm_node) entry;
  19         struct pscnv_mm *mm;
  20         uint64_t maxgap[4];
  21         uint64_t gap[4];
  22         int sentinel;
  23         enum {
  24                 PSCNV_MM_TYPE_USED0,
  25                 PSCNV_MM_TYPE_USED1,
  26                 PSCNV_MM_TYPE_FREE,
  27         } type;
  28         uint64_t start;
  29         uint64_t size;
  30         struct pscnv_mm_node *next;
  31         struct pscnv_mm_node *prev;
  32         void *tag;
  33         void *tag2;
  34 };
  35
  36 #define PSCNV_MM_T1             1
  37 #define PSCNV_MM_LP             2
  38 #define PSCNV_MM_FRAGOK         4
  39 #define PSCNV_MM_FROMBACK       8
  40
  41 int pscnv_mm_init(struct drm_device *dev, uint64_t start, uint64_t end, uint32_t spsize, uint32_t lpsize, uint32_t tssize, struct pscnv_mm **res);
  42 int pscnv_mm_alloc(struct pscnv_mm *mm, uint64_t size, uint32_t flags, uint64_t start, uint64_t end, struct pscnv_mm_node **res);
  43 void pscnv_mm_free(struct pscnv_mm_node *node);
  44 void pscnv_mm_takedown(struct pscnv_mm *mm, void (*free_callback)(struct pscnv_mm_node *));
  45 struct pscnv_mm_node *pscnv_mm_find_node(struct pscnv_mm *mm, uint64_t addr);
  46
  47 #endif