drm/msm/mdp5: introduce mdp5_hw_pipe

Split out the hardware pipe specifics from mdp5_plane.  To start, the hw
pipes are statically assigned to planes, but next step is to assign the
hw pipes during plane->atomic_check() based on requested caps (scaling,
YUV, etc).  And then hw pipe re-assignment if required if required SMP
blocks changes.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.h b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.h
new file mode 100644
index 000000000000..c9e3f71d6c5a
--- /dev/null
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2016 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __MDP5_PIPE_H__
+#define __MDP5_PIPE_H__
+
+#define SSPP_MAX	(SSPP_RGB3 + 1) /* TODO: Add SSPP_MAX in mdp5.xml.h */
+
+/* represents a hw pipe, which is dynamically assigned to a plane */
+struct mdp5_hw_pipe {
+	int idx;
+
+	const char *name;
+	enum mdp5_pipe pipe;
+
+	spinlock_t pipe_lock;     /* protect REG_MDP5_PIPE_* registers */
+	uint32_t reg_offset;
+	uint32_t caps;
+
+	uint32_t flush_mask;      /* used to commit pipe registers */
+};
+
+struct mdp5_hw_pipe *mdp5_pipe_init(enum mdp5_pipe pipe,
+		uint32_t reg_offset, uint32_t caps);
+void mdp5_pipe_destroy(struct mdp5_hw_pipe *hwpipe);
+
+#endif /* __MDP5_PIPE_H__ */