Mesa (master): panfrost: Add a panfrost_flush_batches_accessing_bo() helper
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Thu Oct 3 20:56:13 UTC 2019
Module: Mesa
Branch: master
Commit: 82399b58d3250d974cb6a74c3aa96f6f2fbafef0
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=82399b58d3250d974cb6a74c3aa96f6f2fbafef0
Author: Boris Brezillon <boris.brezillon at collabora.com>
Date: Sun Sep 15 20:17:14 2019 +0200
panfrost: Add a panfrost_flush_batches_accessing_bo() helper
This will allow us to only flush batches touching a specific resource,
which is particularly useful when the CPU needs to access a BO.
Signed-off-by: Boris Brezillon <boris.brezillon at collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
---
src/gallium/drivers/panfrost/pan_job.c | 31 +++++++++++++++++++++++++++++++
src/gallium/drivers/panfrost/pan_job.h | 4 ++++
2 files changed, 35 insertions(+)
diff --git a/src/gallium/drivers/panfrost/pan_job.c b/src/gallium/drivers/panfrost/pan_job.c
index 3ccf4bb6b3e..e7eae399830 100644
--- a/src/gallium/drivers/panfrost/pan_job.c
+++ b/src/gallium/drivers/panfrost/pan_job.c
@@ -953,6 +953,37 @@ panfrost_flush_all_batches(struct panfrost_context *ctx, bool wait)
}
void
+panfrost_flush_batches_accessing_bo(struct panfrost_context *ctx,
+ struct panfrost_bo *bo,
+ uint32_t access_type)
+{
+ struct panfrost_bo_access *access;
+ struct hash_entry *hentry;
+
+ /* It doesn't make any to flush only the readers. */
+ assert(access_type == PAN_BO_ACCESS_WRITE ||
+ access_type == PAN_BO_ACCESS_RW);
+
+ hentry = _mesa_hash_table_search(ctx->accessed_bos, bo);
+ access = hentry ? hentry->data : NULL;
+ if (!access)
+ return;
+
+ if (access_type & PAN_BO_ACCESS_WRITE && access->writer &&
+ access->writer->batch)
+ panfrost_batch_submit(access->writer->batch);
+
+ if (!(access_type & PAN_BO_ACCESS_READ))
+ return;
+
+ util_dynarray_foreach(&access->readers, struct panfrost_batch_fence *,
+ reader) {
+ if (*reader && (*reader)->batch)
+ panfrost_batch_submit((*reader)->batch);
+ }
+}
+
+void
panfrost_batch_set_requirements(struct panfrost_batch *batch)
{
struct panfrost_context *ctx = batch->ctx;
diff --git a/src/gallium/drivers/panfrost/pan_job.h b/src/gallium/drivers/panfrost/pan_job.h
index e95e156a40f..25905b51673 100644
--- a/src/gallium/drivers/panfrost/pan_job.h
+++ b/src/gallium/drivers/panfrost/pan_job.h
@@ -186,6 +186,10 @@ void
panfrost_flush_all_batches(struct panfrost_context *ctx, bool wait);
void
+panfrost_flush_batches_accessing_bo(struct panfrost_context *ctx,
+ struct panfrost_bo *bo, uint32_t flags);
+
+void
panfrost_batch_set_requirements(struct panfrost_batch *batch);
mali_ptr
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