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authorChristian König <christian.koenig@amd.com>2019-04-18 18:00:21 +0300
committerAlex Deucher <alexander.deucher@amd.com>2019-05-02 23:45:48 +0300
commit5918045c4ed492fb5813f980dcf89a90fefd0a4e (patch)
treea59c6f9bb006645b8fc46164d7fb53cb38b24294 /drivers/gpu/drm/etnaviv
parentb3198c38f02d54a5e964258a2180d502abe6eaf0 (diff)
downloadlinux-5918045c4ed492fb5813f980dcf89a90fefd0a4e.tar.xz
drm/scheduler: rework job destruction
We now destroy finished jobs from the worker thread to make sure that we never destroy a job currently in timeout processing. By this we avoid holding lock around ring mirror list in drm_sched_stop which should solve a deadlock reported by a user. v2: Remove unused variable. v4: Move guilty job free into sched code. v5: Move sched->hw_rq_count to drm_sched_start to account for counter decrement in drm_sched_stop even when we don't call resubmit jobs if guily job did signal. v6: remove unused variable Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109692 Acked-by: Chunming Zhou <david1.zhou@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/1555599624-12285-3-git-send-email-andrey.grodzovsky@amd.com
Diffstat (limited to 'drivers/gpu/drm/etnaviv')
-rw-r--r--drivers/gpu/drm/etnaviv/etnaviv_dump.c5
-rw-r--r--drivers/gpu/drm/etnaviv/etnaviv_sched.c2
2 files changed, 1 insertions, 6 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_dump.c b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
index 33854c94cb85..b24ddc406bba 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_dump.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
@@ -118,7 +118,6 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu)
unsigned int n_obj, n_bomap_pages;
size_t file_size, mmu_size;
__le64 *bomap, *bomap_start;
- unsigned long flags;
/* Only catch the first event, or when manually re-armed */
if (!etnaviv_dump_core)
@@ -135,13 +134,11 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu)
mmu_size + gpu->buffer.size;
/* Add in the active command buffers */
- spin_lock_irqsave(&gpu->sched.job_list_lock, flags);
list_for_each_entry(s_job, &gpu->sched.ring_mirror_list, node) {
submit = to_etnaviv_submit(s_job);
file_size += submit->cmdbuf.size;
n_obj++;
}
- spin_unlock_irqrestore(&gpu->sched.job_list_lock, flags);
/* Add in the active buffer objects */
list_for_each_entry(vram, &gpu->mmu->mappings, mmu_node) {
@@ -183,14 +180,12 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu)
gpu->buffer.size,
etnaviv_cmdbuf_get_va(&gpu->buffer));
- spin_lock_irqsave(&gpu->sched.job_list_lock, flags);
list_for_each_entry(s_job, &gpu->sched.ring_mirror_list, node) {
submit = to_etnaviv_submit(s_job);
etnaviv_core_dump_mem(&iter, ETDUMP_BUF_CMD,
submit->cmdbuf.vaddr, submit->cmdbuf.size,
etnaviv_cmdbuf_get_va(&submit->cmdbuf));
}
- spin_unlock_irqrestore(&gpu->sched.job_list_lock, flags);
/* Reserve space for the bomap */
if (n_bomap_pages) {
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_sched.c b/drivers/gpu/drm/etnaviv/etnaviv_sched.c
index 6d24fea1766b..a813c824e154 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_sched.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_sched.c
@@ -109,7 +109,7 @@ static void etnaviv_sched_timedout_job(struct drm_sched_job *sched_job)
}
/* block scheduler */
- drm_sched_stop(&gpu->sched);
+ drm_sched_stop(&gpu->sched, sched_job);
if(sched_job)
drm_sched_increase_karma(sched_job);