src/gallium/drivers/vc4/vc4_cl.c

   1 /*
   2  * Copyright © 2014 Broadcom
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include "util/u_math.h"
  25 #include "util/ralloc.h"
  26 #include "vc4_context.h"
  27
  28 void
  29 vc4_init_cl(struct vc4_context *vc4, struct vc4_cl *cl)
  30 {
  31         cl->base = ralloc_size(vc4, 1);
  32         cl->end = cl->next = cl->base;
  33 }
  34
  35 void
  36 vc4_grow_cl(struct vc4_cl *cl)
  37 {
  38         uint32_t size = MAX2((cl->end - cl->base) * 2, 4096);
  39         uint32_t offset = cl->next -cl->base;
  40
  41         cl->base = reralloc(ralloc_parent(cl->base), cl->base, uint8_t, size);
  42         cl->end = cl->base + size;
  43         cl->next = cl->base + offset;
  44 }
  45
  46 void
  47 vc4_reset_cl(struct vc4_cl *cl)
  48 {
  49         assert(cl->reloc_count == 0);
  50         cl->next = cl->base;
  51 }
  52
  53 uint32_t
  54 vc4_gem_hindex(struct vc4_context *vc4, struct vc4_bo *bo)
  55 {
  56         uint32_t hindex;
  57         uint32_t *current_handles = vc4->bo_handles.base;
  58
  59         for (hindex = 0;
  60              hindex < (vc4->bo_handles.next - vc4->bo_handles.base) / 4;
  61              hindex++) {
  62                 if (current_handles[hindex] == bo->handle)
  63                         return hindex;
  64         }
  65
  66         cl_u32(&vc4->bo_handles, bo->handle);
  67         cl_ptr(&vc4->bo_pointers, vc4_bo_reference(bo));
  68
  69         return hindex;
  70 }