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         uint32_t size;
  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_reset_cl(struct vc4_cl *cl);
  45 void vc4_dump_cl(void *cl, uint32_t size, bool is_render);
  46 uint32_t vc4_gem_hindex(struct vc4_context *vc4, struct vc4_bo *bo);
  47
  48 static inline void
  49 cl_u8(struct vc4_cl *cl, uint8_t n)
  50 {
  51         assert((cl->next - cl->base) + 1 <= cl->size);
  52
  53         *(uint8_t *)cl->next = n;
  54         cl->next++;
  55 }
  56
  57 static inline void
  58 cl_u16(struct vc4_cl *cl, uint32_t n)
  59 {
  60         assert((cl->next - cl->base) + 2 <= cl->size);
  61
  62         *(uint16_t *)cl->next = n;
  63         cl->next += 2;
  64 }
  65
  66 static inline void
  67 cl_u32(struct vc4_cl *cl, uint32_t n)
  68 {
  69         assert((cl->next - cl->base) + 4 <= cl->size);
  70
  71         *(uint32_t *)cl->next = n;
  72         cl->next += 4;
  73 }
  74
  75 static inline void
  76 cl_ptr(struct vc4_cl *cl, void *ptr)
  77 {
  78         assert((cl->next - cl->base) + sizeof(void *) <= cl->size);
  79
  80         *(void **)cl->next = ptr;
  81         cl->next += sizeof(void *);
  82 }
  83
  84 static inline void
  85 cl_f(struct vc4_cl *cl, float f)
  86 {
  87         cl_u32(cl, fui(f));
  88 }
  89
  90 static inline void
  91 cl_start_reloc(struct vc4_cl *cl, uint32_t n)
  92 {
  93         assert(n == 1 || n == 2);
  94         assert(cl->reloc_count == 0);
  95         cl->reloc_count = n;
  96
  97         cl_u8(cl, VC4_PACKET_GEM_HANDLES);
  98         cl->reloc_next = cl->next - cl->base;
  99         cl_u32(cl, 0); /* Space where hindex will be written. */
 100         cl_u32(cl, 0); /* Space where hindex will be written. */
 101 }
 102
 103 static inline void
 104 cl_start_shader_reloc(struct vc4_cl *cl, uint32_t n)
 105 {
 106         assert(cl->reloc_count == 0);
 107         cl->reloc_count = n;
 108         cl->reloc_next = cl->next - cl->base;
 109
 110         for (int i = 0; i < n; i++)
 111                 cl_u32(cl, 0); /* Space where hindex will be written. */
 112 }
 113
 114 static inline void
 115 cl_reloc_hindex(struct vc4_cl *cl, uint32_t hindex, uint32_t offset)
 116 {
 117         *(uint32_t *)(cl->base + cl->reloc_next) = hindex;
 118         cl->reloc_next += 4;
 119
 120         cl->reloc_count--;
 121
 122         cl_u32(cl, offset);
 123 }
 124
 125 static inline void
 126 cl_reloc(struct vc4_context *vc4, struct vc4_cl *cl,
 127          struct vc4_bo *bo, uint32_t offset)
 128 {
 129         cl_reloc_hindex(cl, vc4_gem_hindex(vc4, bo), offset);
 130 }
 131
 132 void cl_ensure_space(struct vc4_cl *cl, uint32_t size);
 133
 134 #endif /* VC4_CL_H */