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path: root/drivers/gpu/drm/etnaviv/etnaviv_dump.c
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Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_dump.c')
-rw-r--r--drivers/gpu/drm/etnaviv/etnaviv_dump.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_dump.c b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
index b24ddc406bba..9a6f5b65488f 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_dump.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
@@ -124,6 +124,8 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu)
return;
etnaviv_dump_core = false;
+ mutex_lock(&gpu->mmu->lock);
+
mmu_size = etnaviv_iommu_dump_size(gpu->mmu);
/* We always dump registers, mmu, ring and end marker */
@@ -164,6 +166,7 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu)
iter.start = __vmalloc(file_size, GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY,
PAGE_KERNEL);
if (!iter.start) {
+ mutex_unlock(&gpu->mmu->lock);
dev_warn(gpu->dev, "failed to allocate devcoredump file\n");
return;
}
@@ -229,6 +232,8 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu)
obj->base.size);
}
+ mutex_unlock(&gpu->mmu->lock);
+
etnaviv_core_dump_header(&iter, ETDUMP_BUF_END, iter.data);
dev_coredumpv(gpu->dev, iter.start, iter.data - iter.start, GFP_KERNEL);