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#include "nv_include.h"
NVAllocRec *NVAllocateMemory(NVPtr pNv, int type, int size)
{
drm_nouveau_mem_alloc_t memalloc;
NVAllocRec *mem;
mem = malloc(sizeof(NVAllocRec));
if (!mem)
return NULL;
memalloc.flags = type | NOUVEAU_MEM_MAPPED;
memalloc.size = size;
memalloc.alignment = 0;
if (drmCommandWriteRead(pNv->drm_fd, DRM_NOUVEAU_MEM_ALLOC, &memalloc,
sizeof(memalloc))) {
ErrorF("NOUVEAU_MEM_ALLOC failed. "
"flags=0x%08x, size=%lld (%d)\n",
mem->type, mem->size, errno);
free(mem);
return NULL;
}
mem->type = memalloc.flags;
mem->size = memalloc.size;
mem->offset = memalloc.offset;
if (drmMap(pNv->drm_fd, memalloc.map_handle, mem->size, &mem->map)) {
ErrorF("drmMap() failed. handle=0x%llx, size=%lld (%d)\n",
memalloc.map_handle, mem->size, errno);
mem->map = NULL;
NVFreeMemory(pNv, mem);
return NULL;
}
return mem;
}
void NVFreeMemory(NVPtr pNv, NVAllocRec *mem)
{
drm_nouveau_mem_free_t memfree;
if (mem) {
if (mem->map) {
if (drmUnmap(mem->map, mem->size))
ErrorF("drmUnmap() failed. "
"map=%p, size=%lld\n",
mem->map, mem->size);
}
memfree.flags = mem->type;
memfree.offset = mem->offset;
if (drmCommandWriteRead(pNv->drm_fd,
DRM_NOUVEAU_MEM_FREE, &memfree,
sizeof(memfree))) {
ErrorF("NOUVEAU_MEM_FREE failed. "
"flags=0x%08x, offset=0x%llx (%d)\n",
mem->type, mem->size, errno);
}
free(mem);
}
}
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