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iris: Ref count the uncompiled shaders

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I tried /just/ ref counting the uncompiled shaders, but that is not
sufficient.  At the very least, it's a problem for blorp shaders that
only have variants (and no uncompiled shader).

This is in prepartion for using the live shader cache.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11229>
This commit is contained in:
Ian Romanick
2021-05-25 12:41:14 -07:00
committed by Marge Bot
parent d5ec4716de
commit d0fac4e4f8
2 changed files with 52 additions and 13 deletions
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22
src/gallium/drivers/iris/iris_context.h
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@@ -371,6 +371,8 @@ enum iris_predicate_state {
* See iris_compiled_shader, which represents a compiled shader variant.
*/
struct iris_uncompiled_shader {
struct pipe_reference ref;
/**
* NIR for the shader.
*
@@ -955,6 +957,26 @@ struct iris_compiled_shader *iris_upload_shader(struct iris_screen *screen,
const struct iris_binding_table *bt);
void iris_delete_shader_variant(struct iris_compiled_shader *shader);
void iris_destroy_shader_state(struct pipe_context *ctx, void *state);
static inline void
iris_uncompiled_shader_reference(struct pipe_context *ctx,
struct iris_uncompiled_shader **dst,
struct iris_uncompiled_shader *src)
{
if (*dst == src)
return;
struct iris_uncompiled_shader *old_dst = *dst;
if (pipe_reference(old_dst != NULL ? &old_dst->ref : NULL,
src != NULL ? &src->ref : NULL)) {
iris_destroy_shader_state(ctx, *dst);
}
*dst = src;
}
static inline void
iris_shader_variant_reference(struct iris_compiled_shader **dst,
struct iris_compiled_shader *src)