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#ifndef __NOUVEAU_CONTEXT_H__
#define __NOUVEAU_CONTEXT_H__
#include "pipe/p_context.h"
#include <libdrm/nouveau.h>
#define NOUVEAU_MAX_SCRATCH_BUFS 4
struct nouveau_context {
struct pipe_context pipe;
struct nouveau_screen *screen;
struct nouveau_client *client;
struct nouveau_pushbuf *pushbuf;
boolean vbo_dirty;
boolean cb_dirty;
void (*copy_data)(struct nouveau_context *,
struct nouveau_bo *dst, unsigned, unsigned,
struct nouveau_bo *src, unsigned, unsigned, unsigned);
void (*push_data)(struct nouveau_context *,
struct nouveau_bo *dst, unsigned, unsigned,
unsigned, const void *);
/* base, size refer to the whole constant buffer */
void (*push_cb)(struct nouveau_context *,
struct nouveau_bo *, unsigned domain,
unsigned base, unsigned size,
unsigned offset, unsigned words, const uint32_t *);
struct {
uint8_t *map;
unsigned id;
unsigned wrap;
unsigned offset;
unsigned end;
struct nouveau_bo *bo[NOUVEAU_MAX_SCRATCH_BUFS];
struct nouveau_bo *current;
struct nouveau_bo **runout;
unsigned nr_runout;
unsigned bo_size;
} scratch;
};
static INLINE struct nouveau_context *
nouveau_context(struct pipe_context *pipe)
{
return (struct nouveau_context *)pipe;
}
void
nouveau_context_init_vdec(struct nouveau_context *);
void
nouveau_scratch_runout_release(struct nouveau_context *);
/* This is needed because we don't hold references outside of context::scratch,
* because we don't want to un-bo_ref each allocation every time. This is less
* work, and we need the wrap index anyway for extreme situations.
*/
static INLINE void
nouveau_scratch_done(struct nouveau_context *nv)
{
nv->scratch.wrap = nv->scratch.id;
if (unlikely(nv->scratch.nr_runout))
nouveau_scratch_runout_release(nv);
}
/* Get pointer to scratch buffer.
* The returned nouveau_bo is only referenced by the context, don't un-ref it !
*/
void *
nouveau_scratch_get(struct nouveau_context *, unsigned size, uint64_t *gpu_addr,
struct nouveau_bo **);
static INLINE void
nouveau_context_destroy(struct nouveau_context *ctx)
{
int i;
for (i = 0; i < NOUVEAU_MAX_SCRATCH_BUFS; ++i)
if (ctx->scratch.bo[i])
nouveau_bo_ref(NULL, &ctx->scratch.bo[i]);
FREE(ctx);
}
#endif
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