src/gallium/drivers/vc4/vc4_cl.h

   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 #ifndef VC4_CL_H
  25 #define VC4_CL_H
  26
  27 #include <stdint.h>
  28
  29 #include "util/u_math.h"
  30
  31 #include "vc4_packet.h"
  32
  33 struct vc4_bo;
  34
  35 struct vc4_cl {
  36         void *base;
  37         void *next;
  38         void *end;
  39         uint32_t reloc_next;
  40         uint32_t reloc_count;
  41 };
  42
  43 void vc4_init_cl(struct vc4_context *vc4, struct vc4_cl *cl);
  44 void vc4_grow_cl(struct vc4_cl *cl);
  45 void vc4_reset_cl(struct vc4_cl *cl);
  46 void vc4_dump_cl(void *cl, uint32_t size, bool is_render);
  47 uint32_t vc4_gem_hindex(struct vc4_context *vc4, struct vc4_bo *bo);
  48
  49 static inline void
  50 cl_u8(struct vc4_cl *cl, uint8_t n)
  51 {
  52         if (cl->next + 1 > cl->end)
  53                 vc4_grow_cl(cl);
  54
  55         *(uint8_t *)cl->next = n;
  56         cl->next++;
  57 }
  58
  59 static inline void
  60 cl_u16(struct vc4_cl *cl, uint32_t n)
  61 {
  62         if (cl->next + 2 > cl->end)
  63                 vc4_grow_cl(cl);
  64
  65         *(uint16_t *)cl->next = n;
  66         cl->next += 2;
  67 }
  68
  69 static inline void
  70 cl_u32(struct vc4_cl *cl, uint32_t n)
  71 {
  72         if (cl->next + 4 > cl->end)
  73                 vc4_grow_cl(cl);
  74
  75         *(uint32_t *)cl->next = n;
  76         cl->next += 4;
  77 }
  78
  79 static inline void
  80 cl_ptr(struct vc4_cl *cl, void *ptr)
  81 {
  82         if (cl->next + sizeof(void *) > cl->end)
  83                 vc4_grow_cl(cl);
  84
  85         *(void **)cl->next = ptr;
  86         cl->next += sizeof(void *);
  87 }
  88
  89 static inline void
  90 cl_f(struct vc4_cl *cl, float f)
  91 {
  92         cl_u32(cl, fui(f));
  93 }
  94
  95 static inline void
  96 cl_start_reloc(struct vc4_cl *cl, uint32_t n)
  97 {
  98         assert(n == 1 || n == 2);
  99         assert(cl->reloc_count == 0);
 100         cl->reloc_count = n;
 101
 102         cl_u8(cl, VC4_PACKET_GEM_HANDLES);
 103         cl->reloc_next = cl->next - cl->base;
 104         cl_u32(cl, 0); /* Space where hindex will be written. */
 105         cl_u32(cl, 0); /* Space where hindex will be written. */
 106 }
 107
 108 static inline void
 109 cl_start_shader_reloc(struct vc4_cl *cl, uint32_t n)
 110 {
 111         assert(cl->reloc_count == 0);
 112         cl->reloc_count = n;
 113         cl->reloc_next = cl->next - cl->base;
 114
 115         for (int i = 0; i < n; i++)
 116                 cl_u32(cl, 0); /* Space where hindex will be written. */
 117 }
 118
 119 static inline void
 120 cl_reloc(struct vc4_context *vc4, struct vc4_cl *cl,
 121          struct vc4_bo *bo, uint32_t offset)
 122 {
 123         *(uint32_t *)(cl->base + cl->reloc_next) = vc4_gem_hindex(vc4, bo);
 124         cl->reloc_next += 4;
 125
 126         cl->reloc_count--;
 127
 128         cl_u32(cl, offset);
 129 }
 130
 131 #endif /* VC4_CL_H */