Mesa (master): llvmpipe: wrap late screen init with a mutex.
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Tue Apr 20 02:22:14 UTC 2021
Module: Mesa
Branch: master
Commit: 3172289d8b1bec597dfce600dac2fe8a0f0819b9
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=3172289d8b1bec597dfce600dac2fe8a0f0819b9
Author: Dave Airlie <airlied at redhat.com>
Date: Tue Apr 20 11:30:46 2021 +1000
llvmpipe: wrap late screen init with a mutex.
Next step can just move this into context init
Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz at gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10338>
---
src/gallium/drivers/llvmpipe/lp_screen.c | 18 +++++++++++++++---
src/gallium/drivers/llvmpipe/lp_screen.h | 3 +++
2 files changed, 18 insertions(+), 3 deletions(-)
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index 3fee18fd570..3c1d3ce5690 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -878,19 +878,30 @@ void lp_disk_cache_insert_shader(struct llvmpipe_screen *screen,
static bool
llvmpipe_screen_late_init(struct llvmpipe_screen *screen)
{
+ bool ret = true;
+ mtx_lock(&screen->late_mutex);
+
+ if (screen->late_init_done)
+ goto out;
+
screen->rast = lp_rast_create(screen->num_threads);
if (!screen->rast) {
- return false;
+ ret = false;
+ goto out;
}
screen->cs_tpool = lp_cs_tpool_create(screen->num_threads);
if (!screen->cs_tpool) {
lp_rast_destroy(screen->rast);
- return false;
+ ret = false;
+ goto out;
}
lp_disk_cache_create(screen);
- return true;
+ screen->late_init_done = true;
+out:
+ mtx_unlock(&screen->late_mutex);
+ return ret;
}
/**
@@ -959,6 +970,7 @@ llvmpipe_create_screen(struct sw_winsys *winsys)
(void) mtx_init(&screen->cs_mutex, mtx_plain);
(void) mtx_init(&screen->rast_mutex, mtx_plain);
+ (void) mtx_init(&screen->late_mutex, mtx_plain);
if (!llvmpipe_screen_late_init(screen)) {
lp_jit_screen_cleanup(screen);
FREE(screen);
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.h b/src/gallium/drivers/llvmpipe/lp_screen.h
index a790c199cd9..ca29e03a958 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.h
+++ b/src/gallium/drivers/llvmpipe/lp_screen.h
@@ -64,6 +64,9 @@ struct llvmpipe_screen
bool use_tgsi;
bool allow_cl;
+ mtx_t late_mutex;
+ bool late_init_done;
+
struct disk_cache *disk_shader_cache;
unsigned num_disk_shader_cache_hits;
unsigned num_disk_shader_cache_misses;
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