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 #include "util/macros.h"
  31
  32 #include "kernel/vc4_packet.h"
  33
  34 struct vc4_bo;
  35
  36 struct vc4_cl {
  37         void *base;
  38         void *next;
  39         void *reloc_next;
  40         uint32_t size;
  41         uint32_t reloc_count;
  42 };
  43
  44 void vc4_init_cl(struct vc4_context *vc4, 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 struct PACKED unaligned_16 { uint16_t x; };
  50 struct PACKED unaligned_32 { uint32_t x; };
  51
  52 static inline void
  53 put_unaligned_32(void *ptr, uint32_t val)
  54 {
  55         struct unaligned_32 *p = ptr;
  56         p->x = val;
  57 }
  58
  59 static inline void
  60 put_unaligned_16(void *ptr, uint16_t val)
  61 {
  62         struct unaligned_16 *p = ptr;
  63         p->x = val;
  64 }
  65
  66 static inline void
  67 cl_u8(struct vc4_cl *cl, uint8_t n)
  68 {
  69         assert((cl->next - cl->base) + 1 <= cl->size);
  70
  71         *(uint8_t *)cl->next = n;
  72         cl->next++;
  73 }
  74
  75 static inline void
  76 cl_u16(struct vc4_cl *cl, uint16_t n)
  77 {
  78         assert((cl->next - cl->base) + 2 <= cl->size);
  79
  80         put_unaligned_16(cl->next, n);
  81         cl->next += 2;
  82 }
  83
  84 static inline void
  85 cl_u32(struct vc4_cl *cl, uint32_t n)
  86 {
  87         assert((cl->next - cl->base) + 4 <= cl->size);
  88
  89         put_unaligned_32(cl->next, n);
  90         cl->next += 4;
  91 }
  92
  93 static inline void
  94 cl_aligned_u32(struct vc4_cl *cl, uint32_t n)
  95 {
  96         assert((cl->next - cl->base) + 4 <= cl->size);
  97
  98         *(uint32_t *)cl->next = n;
  99         cl->next += 4;
 100 }
 101
 102 static inline void
 103 cl_ptr(struct vc4_cl *cl, void *ptr)
 104 {
 105         assert((cl->next - cl->base) + sizeof(void *) <= cl->size);
 106
 107         *(void **)cl->next = ptr;
 108         cl->next += sizeof(void *);
 109 }
 110
 111 static inline void
 112 cl_f(struct vc4_cl *cl, float f)
 113 {
 114         cl_u32(cl, fui(f));
 115 }
 116
 117 static inline void
 118 cl_aligned_f(struct vc4_cl *cl, float f)
 119 {
 120         cl_aligned_u32(cl, fui(f));
 121 }
 122
 123 static inline void
 124 cl_start_reloc(struct vc4_cl *cl, uint32_t n)
 125 {
 126         assert(n == 1 || n == 2);
 127         assert(cl->reloc_count == 0);
 128         cl->reloc_count = n;
 129
 130         cl_u8(cl, VC4_PACKET_GEM_HANDLES);
 131         cl->reloc_next = cl->next;
 132         cl_u32(cl, 0); /* Space where hindex will be written. */
 133         cl_u32(cl, 0); /* Space where hindex will be written. */
 134 }
 135
 136 static inline void
 137 cl_start_shader_reloc(struct vc4_cl *cl, uint32_t n)
 138 {
 139         assert(cl->reloc_count == 0);
 140         cl->reloc_count = n;
 141         cl->reloc_next = cl->next;
 142
 143         /* Space where hindex will be written. */
 144         cl->next += n * 4;
 145 }
 146
 147 static inline void
 148 cl_reloc(struct vc4_context *vc4, struct vc4_cl *cl,
 149          struct vc4_bo *bo, uint32_t offset)
 150 {
 151         *(uint32_t *)cl->reloc_next = vc4_gem_hindex(vc4, bo);
 152         cl->reloc_next += 4;
 153
 154         cl->reloc_count--;
 155
 156         cl_u32(cl, offset);
 157 }
 158
 159 static inline void
 160 cl_aligned_reloc(struct vc4_context *vc4, struct vc4_cl *cl,
 161          struct vc4_bo *bo, uint32_t offset)
 162 {
 163         *(uint32_t *)cl->reloc_next = vc4_gem_hindex(vc4, bo);
 164         cl->reloc_next += 4;
 165
 166         cl->reloc_count--;
 167
 168         cl_aligned_u32(cl, offset);
 169 }
 170
 171 void cl_ensure_space(struct vc4_cl *cl, uint32_t size);
 172
 173 #endif /* VC4_CL_H */