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Diffstat (limited to 'src/gallium/drivers/vc5/vc5_cl.h')
| -rw-r--r-- | src/gallium/drivers/vc5/vc5_cl.h | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/src/gallium/drivers/vc5/vc5_cl.h b/src/gallium/drivers/vc5/vc5_cl.h new file mode 100644 index 00000000000..e935eeff536 --- /dev/null +++ b/src/gallium/drivers/vc5/vc5_cl.h @@ -0,0 +1,246 @@ +/* + * Copyright © 2014-2017 Broadcom + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#ifndef VC5_CL_H +#define VC5_CL_H + +#include <stdint.h> + +#include "util/u_math.h" +#include "util/macros.h" + +struct vc5_bo; +struct vc5_job; +struct vc5_cl; + +/** + * Undefined structure, used for typechecking that you're passing the pointers + * to these functions correctly. + */ +struct vc5_cl_out; + +/** A reference to a BO used in the CL packing functions */ +struct vc5_cl_reloc { + struct vc5_bo *bo; + uint32_t offset; +}; + +static inline void cl_pack_emit_reloc(struct vc5_cl *cl, const struct vc5_cl_reloc *); + +#define __gen_user_data struct vc5_cl +#define __gen_address_type struct vc5_cl_reloc +#define __gen_address_offset(reloc) (((reloc)->bo ? (reloc)->bo->offset : 0) + \ + (reloc)->offset) +#define __gen_emit_reloc cl_pack_emit_reloc + +struct vc5_cl { + void *base; + struct vc5_job *job; + struct vc5_cl_out *next; + struct vc5_bo *bo; + uint32_t size; +}; + +void vc5_init_cl(struct vc5_job *job, struct vc5_cl *cl); +void vc5_destroy_cl(struct vc5_cl *cl); +void vc5_dump_cl(void *cl, uint32_t size, bool is_render); +uint32_t vc5_gem_hindex(struct vc5_job *job, struct vc5_bo *bo); + +struct PACKED unaligned_16 { uint16_t x; }; +struct PACKED unaligned_32 { uint32_t x; }; + +static inline uint32_t cl_offset(struct vc5_cl *cl) +{ + return (char *)cl->next - (char *)cl->base; +} + +static inline void +cl_advance(struct vc5_cl_out **cl, uint32_t n) +{ + (*cl) = (struct vc5_cl_out *)((char *)(*cl) + n); +} + +static inline struct vc5_cl_out * +cl_start(struct vc5_cl *cl) +{ + return cl->next; +} + +static inline void +cl_end(struct vc5_cl *cl, struct vc5_cl_out *next) +{ + cl->next = next; + assert(cl_offset(cl) <= cl->size); +} + + +static inline void +put_unaligned_32(struct vc5_cl_out *ptr, uint32_t val) +{ + struct unaligned_32 *p = (void *)ptr; + p->x = val; +} + +static inline void +put_unaligned_16(struct vc5_cl_out *ptr, uint16_t val) +{ + struct unaligned_16 *p = (void *)ptr; + p->x = val; +} + +static inline void +cl_u8(struct vc5_cl_out **cl, uint8_t n) +{ + *(uint8_t *)(*cl) = n; + cl_advance(cl, 1); +} + +static inline void +cl_u16(struct vc5_cl_out **cl, uint16_t n) +{ + put_unaligned_16(*cl, n); + cl_advance(cl, 2); +} + +static inline void +cl_u32(struct vc5_cl_out **cl, uint32_t n) +{ + put_unaligned_32(*cl, n); + cl_advance(cl, 4); +} + +static inline void +cl_aligned_u32(struct vc5_cl_out **cl, uint32_t n) +{ + *(uint32_t *)(*cl) = n; + cl_advance(cl, 4); +} + +static inline void +cl_aligned_reloc(struct vc5_cl *cl, + struct vc5_cl_out **cl_out, + struct vc5_bo *bo, uint32_t offset) +{ + cl_aligned_u32(cl_out, bo->offset + offset); + vc5_job_add_bo(cl->job, bo); +} + +static inline void +cl_ptr(struct vc5_cl_out **cl, void *ptr) +{ + *(struct vc5_cl_out **)(*cl) = ptr; + cl_advance(cl, sizeof(void *)); +} + +static inline void +cl_f(struct vc5_cl_out **cl, float f) +{ + cl_u32(cl, fui(f)); +} + +static inline void +cl_aligned_f(struct vc5_cl_out **cl, float f) +{ + cl_aligned_u32(cl, fui(f)); +} + +/** + * Reference to a BO with its associated offset, used in the pack process. + */ +static inline struct vc5_cl_reloc +cl_address(struct vc5_bo *bo, uint32_t offset) +{ + struct vc5_cl_reloc reloc = { + .bo = bo, + .offset = offset, + }; + return reloc; +} + +uint32_t vc5_cl_ensure_space(struct vc5_cl *cl, uint32_t size, uint32_t align); +void vc5_cl_ensure_space_with_branch(struct vc5_cl *cl, uint32_t size); + +#define cl_packet_header(packet) V3D33_ ## packet ## _header +#define cl_packet_length(packet) V3D33_ ## packet ## _length +#define cl_packet_pack(packet) V3D33_ ## packet ## _pack +#define cl_packet_struct(packet) V3D33_ ## packet + +static inline void * +cl_get_emit_space(struct vc5_cl_out **cl, size_t size) +{ + void *addr = *cl; + cl_advance(cl, size); + return addr; +} + +/* Macro for setting up an emit of a CL struct. A temporary unpacked struct + * is created, which you get to set fields in of the form: + * + * cl_emit(bcl, FLAT_SHADE_FLAGS, flags) { + * .flags.flat_shade_flags = 1 << 2, + * } + * + * or default values only can be emitted with just: + * + * cl_emit(bcl, FLAT_SHADE_FLAGS, flags); + * + * The trick here is that we make a for loop that will execute the body + * (either the block or the ';' after the macro invocation) exactly once. + */ +#define cl_emit(cl, packet, name) \ + for (struct cl_packet_struct(packet) name = { \ + cl_packet_header(packet) \ + }, \ + *_loop_terminate = &name; \ + __builtin_expect(_loop_terminate != NULL, 1); \ + ({ \ + struct vc5_cl_out *cl_out = cl_start(cl); \ + cl_packet_pack(packet)(cl, (uint8_t *)cl_out, &name); \ + VG(VALGRIND_CHECK_MEM_IS_DEFINED(cl_out, \ + cl_packet_length(packet))); \ + cl_advance(&cl_out, cl_packet_length(packet)); \ + cl_end(cl, cl_out); \ + _loop_terminate = NULL; \ + })) \ + +#define cl_emit_prepacked(cl, packet) do { \ + memcpy((cl)->next, packet, sizeof(*packet)); \ + cl_advance(&(cl)->next, sizeof(*packet)); \ +} while (0) + +/** + * Helper function called by the XML-generated pack functions for filling in + * an address field in shader records. + * + * Since we have a private address space as of VC5, our BOs can have lifelong + * offsets, and all the kernel needs to know is which BOs need to be paged in + * for this exec. + */ +static inline void +cl_pack_emit_reloc(struct vc5_cl *cl, const struct vc5_cl_reloc *reloc) +{ + if (reloc->bo) + vc5_job_add_bo(cl->job, reloc->bo); +} + +#endif /* VC5_CL_H */ |