[PATCH i-g-t v4 14/40] lib/intel_bufops: Add init with handle and size function

[Zbigniew Kempczyński]

For some cases (fb with compression) fb size is bigger than calculated
intel_buf what lead to execbuf failure when allocator is used
along with EXEC_OBJECT_PINNED flag set for all objects.

We need to create intel_buf with size equal to fb so new function
in which we pass handle and size is required.

Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
Cc: Dominik Grzegorzek <dominik.grzegorzek at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 lib/intel_bufops.c | 33 ++++++++++++++++++++++++++++-----
 lib/intel_bufops.h |  7 +++++++
 2 files changed, 35 insertions(+), 5 deletions(-)

diff --git a/lib/intel_bufops.c b/lib/intel_bufops.c
index 31564c5fd..627b4a2bb 100644
--- a/lib/intel_bufops.c
+++ b/lib/intel_bufops.c
@@ -708,7 +708,8 @@ static void __intel_buf_init(struct buf_ops *bops,
 			     uint32_t handle,
 			     struct intel_buf *buf,
 			     int width, int height, int bpp, int alignment,
-			     uint32_t req_tiling, uint32_t compression)
+			     uint32_t req_tiling, uint32_t compression,
+			     uint64_t bo_size)
 {
 	uint32_t tiling = req_tiling;
 	uint64_t size;
@@ -758,7 +759,7 @@ static void __intel_buf_init(struct buf_ops *bops,
 		buf->ccs[0].offset = buf->surface[0].stride * ALIGN(height, 32);
 		buf->ccs[0].stride = aux_width;
 
-		size = buf->ccs[0].offset + aux_width * aux_height;
+		size = max(bo_size, buf->ccs[0].offset + aux_width * aux_height);
 	} else {
 		if (tiling) {
 			devid =  intel_get_drm_devid(bops->fd);
@@ -773,7 +774,7 @@ static void __intel_buf_init(struct buf_ops *bops,
 		buf->tiling = tiling;
 		buf->bpp = bpp;
 
-		size = buf->surface[0].stride * ALIGN(height, align_h);
+		size = max(bo_size, buf->surface[0].stride * ALIGN(height, align_h));
 	}
 
 	/* Store real bo size to avoid mistakes in calculating it again */
@@ -809,7 +810,7 @@ void intel_buf_init(struct buf_ops *bops,
 		    uint32_t tiling, uint32_t compression)
 {
 	__intel_buf_init(bops, 0, buf, width, height, bpp, alignment,
-			 tiling, compression);
+			 tiling, compression, 0);
 
 	intel_buf_set_ownership(buf, true);
 }
@@ -860,7 +861,7 @@ void intel_buf_init_using_handle(struct buf_ops *bops,
 				 uint32_t req_tiling, uint32_t compression)
 {
 	__intel_buf_init(bops, handle, buf, width, height, bpp, alignment,
-			 req_tiling, compression);
+			 req_tiling, compression, 0);
 }
 
 /**
@@ -929,6 +930,28 @@ struct intel_buf *intel_buf_create_using_handle(struct buf_ops *bops,
 	return buf;
 }
 
+struct intel_buf *intel_buf_create_using_handle_and_size(struct buf_ops *bops,
+							 uint32_t handle,
+							 int width, int height,
+							 int bpp, int alignment,
+							 uint32_t req_tiling,
+							 uint32_t compression,
+							 uint64_t size)
+{
+	struct intel_buf *buf;
+
+	igt_assert(bops);
+
+	buf = calloc(1, sizeof(*buf));
+	igt_assert(buf);
+
+	__intel_buf_init(bops, handle, buf, width, height, bpp, alignment,
+			 req_tiling, compression, size);
+
+	return buf;
+}
+
+
 /**
  * intel_buf_destroy
  * @buf: intel_buf
diff --git a/lib/intel_bufops.h b/lib/intel_bufops.h
index 5619fc6fa..54480bff6 100644
--- a/lib/intel_bufops.h
+++ b/lib/intel_bufops.h
@@ -139,6 +139,13 @@ struct intel_buf *intel_buf_create_using_handle(struct buf_ops *bops,
 						uint32_t req_tiling,
 						uint32_t compression);
 
+struct intel_buf *intel_buf_create_using_handle_and_size(struct buf_ops *bops,
+							 uint32_t handle,
+							 int width, int height,
+							 int bpp, int alignment,
+							 uint32_t req_tiling,
+							 uint32_t compression,
+							 uint64_t size);
 void intel_buf_destroy(struct intel_buf *buf);
 
 void *intel_buf_cpu_map(struct intel_buf *buf, bool write);
-- 
2.26.0