Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / msm / msm_kms.h

diff --git a/kernel/drivers/gpu/drm/msm/msm_kms.h b/kernel/drivers/gpu/drm/msm/msm_kms.h
new file mode 100644 (file)
index 0000000..a9f17bd
--- /dev/null
+++ b/kernel/drivers/gpu/drm/msm/msm_kms.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2013 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 __MSM_KMS_H__
+#define __MSM_KMS_H__
+
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
+
+#include "msm_drv.h"
+
+#define MAX_PLANE      4
+
+/* As there are different display controller blocks depending on the
+ * snapdragon version, the kms support is split out and the appropriate
+ * implementation is loaded at runtime.  The kms module is responsible
+ * for constructing the appropriate planes/crtcs/encoders/connectors.
+ */
+struct msm_kms_funcs {
+       /* hw initialization: */
+       int (*hw_init)(struct msm_kms *kms);
+       /* irq handling: */
+       void (*irq_preinstall)(struct msm_kms *kms);
+       int (*irq_postinstall)(struct msm_kms *kms);
+       void (*irq_uninstall)(struct msm_kms *kms);
+       irqreturn_t (*irq)(struct msm_kms *kms);
+       int (*enable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc);
+       void (*disable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc);
+       /* modeset, bracketing atomic_commit(): */
+       void (*prepare_commit)(struct msm_kms *kms, struct drm_atomic_state *state);
+       void (*complete_commit)(struct msm_kms *kms, struct drm_atomic_state *state);
+       /* misc: */
+       const struct msm_format *(*get_format)(struct msm_kms *kms, uint32_t format);
+       long (*round_pixclk)(struct msm_kms *kms, unsigned long rate,
+                       struct drm_encoder *encoder);
+       int (*set_split_display)(struct msm_kms *kms,
+                       struct drm_encoder *encoder,
+                       struct drm_encoder *slave_encoder,
+                       bool is_cmd_mode);
+       /* cleanup: */
+       void (*preclose)(struct msm_kms *kms, struct drm_file *file);
+       void (*destroy)(struct msm_kms *kms);
+};
+
+struct msm_kms {
+       const struct msm_kms_funcs *funcs;
+
+       /* irq handling: */
+       bool in_irq;
+       struct list_head irq_list;    /* list of mdp4_irq */
+       uint32_t vblank_mask;         /* irq bits set for userspace vblank */
+};
+
+static inline void msm_kms_init(struct msm_kms *kms,
+               const struct msm_kms_funcs *funcs)
+{
+       kms->funcs = funcs;
+}
+
+struct msm_kms *mdp4_kms_init(struct drm_device *dev);
+struct msm_kms *mdp5_kms_init(struct drm_device *dev);
+
+#endif /* __MSM_KMS_H__ */