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ir3: Expose occupancy calculation functions

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9842>
This commit is contained in:
Connor Abbott 2021-03-22 15:02:48 +01:00 • committed by Emma Anholt
parent 3ac743c333
commit df9f41cc02
2 changed files with 20 additions and 11 deletions
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22
src/freedreno/ir3/ir3.c
View file

@ -107,9 +107,9 @@ collect_reg_info(struct ir3_instruction *instr, struct ir3_register *reg,
}
}
static bool
should_double_threadsize(struct ir3_shader_variant *v,
unsigned regs_count)
bool
ir3_should_double_threadsize(struct ir3_shader_variant *v,
unsigned regs_count)
{
const struct ir3_compiler *compiler = v->shader->compiler;
@ -165,8 +165,8 @@ should_double_threadsize(struct ir3_shader_variant *v,
/* Get the maximum number of waves that could be used even if this shader
* didn't use any registers.
*/
static unsigned
get_reg_independent_max_waves(struct ir3_shader_variant *v, bool double_threadsize)
unsigned
ir3_get_reg_independent_max_waves(struct ir3_shader_variant *v, bool double_threadsize)
{
const struct ir3_compiler *compiler = v->shader->compiler;
unsigned max_waves = compiler->max_waves;
@ -200,9 +200,9 @@ get_reg_independent_max_waves(struct ir3_shader_variant *v, bool double_threadsi
/* Get the maximum number of waves that could be launched limited by reg size.
*/
static unsigned
get_reg_dependent_max_waves(const struct ir3_compiler *compiler,
unsigned reg_count, bool double_threadsize)
unsigned
ir3_get_reg_dependent_max_waves(const struct ir3_compiler *compiler,
unsigned reg_count, bool double_threadsize)
{
return reg_count ?
(compiler->reg_size_vec4 / (reg_count * (double_threadsize ? 2 : 1)) *
@ -310,11 +310,11 @@ ir3_collect_info(struct ir3_shader_variant *v)
unsigned regs_count =
info->max_reg + 1 + (compiler->gpu_id >= 600 ? ((info->max_half_reg + 2) / 2) : 0);
info->double_threadsize = should_double_threadsize(v, regs_count);
info->double_threadsize = ir3_should_double_threadsize(v, regs_count);
unsigned reg_independent_max_waves =
get_reg_independent_max_waves(v, info->double_threadsize);
ir3_get_reg_independent_max_waves(v, info->double_threadsize);
unsigned reg_dependent_max_waves =
get_reg_dependent_max_waves(compiler, regs_count, info->double_threadsize);
ir3_get_reg_dependent_max_waves(compiler, regs_count, info->double_threadsize);
info->max_waves = MIN2(reg_independent_max_waves, reg_dependent_max_waves);
assert(info->max_waves <= v->shader->compiler->max_waves);
}

9
src/freedreno/ir3/ir3.h
View file

@ -621,6 +621,15 @@ void ir3_destroy(struct ir3 *shader);
void ir3_collect_info(struct ir3_shader_variant *v);
void * ir3_alloc(struct ir3 *shader, int sz);
unsigned ir3_get_reg_dependent_max_waves(const struct ir3_compiler *compiler,
unsigned reg_count, bool double_threadsize);
unsigned ir3_get_reg_independent_max_waves(struct ir3_shader_variant *v,
bool double_threadsize);
bool ir3_should_double_threadsize(struct ir3_shader_variant *v,
unsigned regs_count);
struct ir3_block * ir3_block_create(struct ir3 *shader);
struct ir3_instruction * ir3_instr_create(struct ir3_block *block,