Added missing tegra files.HEADmaster

1 files changed, 155 insertions, 0 deletions

diff --git a/drivers/video/tegra/host/nvhost_syncpt.h b/drivers/video/tegra/host/nvhost_syncpt.h
new file mode 100644
index 00000000000..5b339178d1e
--- /dev/null
+++ b/drivers/video/tegra/host/nvhost_syncpt.h
@@ -0,0 +1,155 @@
+/*
+ * drivers/video/tegra/host/nvhost_syncpt.h
+ *
+ * Tegra Graphics Host Syncpoints
+ *
+ * Copyright (c) 2010-2012, NVIDIA Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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 __NVHOST_SYNCPT_H
+#define __NVHOST_SYNCPT_H
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/nvhost.h>
+#include <mach/nvmap.h>
+#include <linux/atomic.h>
+
+struct nvhost_syncpt;
+struct nvhost_waitchk;
+
+/* host managed and invalid syncpt id */
+#define NVSYNCPT_GRAPHICS_HOST               (0)
+#define NVSYNCPT_INVALID                     (-1)
+
+struct nvhost_syncpt {
+        atomic_t *min_val;
+        atomic_t *max_val;
+        u32 *base_val;
+        u32 nb_pts;
+        u32 nb_bases;
+        u32 client_managed;
+        atomic_t *lock_counts;
+        u32 nb_mlocks;
+};
+
+int nvhost_syncpt_init(struct nvhost_syncpt *);
+#define client_managed(id) (BIT(id) & sp->client_managed)
+#define syncpt_to_dev(sp) container_of(sp, struct nvhost_master, syncpt)
+#define syncpt_op(sp) (syncpt_to_dev(sp)->op.syncpt)
+#define SYNCPT_CHECK_PERIOD (2*HZ)
+
+
+/**
+ * Updates the value sent to hardware.
+ */
+static inline u32 nvhost_syncpt_incr_max(struct nvhost_syncpt *sp,
+                                        u32 id, u32 incrs)
+{
+        return (u32)atomic_add_return(incrs, &sp->max_val[id]);
+}
+
+/**
+ * Updated the value sent to hardware.
+ */
+static inline u32 nvhost_syncpt_set_max(struct nvhost_syncpt *sp,
+                                        u32 id, u32 val)
+{
+        atomic_set(&sp->max_val[id], val);
+        smp_wmb();
+        return val;
+}
+
+static inline u32 nvhost_syncpt_read_max(struct nvhost_syncpt *sp, u32 id)
+{
+        smp_rmb();
+        return (u32)atomic_read(&sp->max_val[id]);
+}
+
+static inline u32 nvhost_syncpt_read_min(struct nvhost_syncpt *sp, u32 id)
+{
+        smp_rmb();
+        return (u32)atomic_read(&sp->min_val[id]);
+}
+
+static inline bool nvhost_syncpt_check_max(struct nvhost_syncpt *sp,
+                u32 id, u32 real)
+{
+        u32 max;
+        if (client_managed(id))
+                return true;
+        max = nvhost_syncpt_read_max(sp, id);
+        return (s32)(max - real) >= 0;
+}
+
+/**
+ * Returns true if syncpoint min == max
+ */
+static inline bool nvhost_syncpt_min_eq_max(struct nvhost_syncpt *sp, u32 id)
+{
+        int min, max;
+        smp_rmb();
+        min = atomic_read(&sp->min_val[id]);
+        max = atomic_read(&sp->max_val[id]);
+        return (min == max);
+}
+
+void nvhost_syncpt_cpu_incr(struct nvhost_syncpt *sp, u32 id);
+
+u32 nvhost_syncpt_update_min(struct nvhost_syncpt *sp, u32 id);
+bool nvhost_syncpt_is_expired(struct nvhost_syncpt *sp, u32 id, u32 thresh);
+
+void nvhost_syncpt_save(struct nvhost_syncpt *sp);
+
+void nvhost_syncpt_reset(struct nvhost_syncpt *sp);
+
+u32 nvhost_syncpt_read(struct nvhost_syncpt *sp, u32 id);
+u32 nvhost_syncpt_read_wait_base(struct nvhost_syncpt *sp, u32 id);
+
+void nvhost_syncpt_incr(struct nvhost_syncpt *sp, u32 id);
+
+int nvhost_syncpt_wait_timeout(struct nvhost_syncpt *sp, u32 id, u32 thresh,
+                        u32 timeout, u32 *value);
+
+static inline int nvhost_syncpt_wait(struct nvhost_syncpt *sp, u32 id, u32 thresh)
+{
+        return nvhost_syncpt_wait_timeout(sp, id, thresh,
+                                          MAX_SCHEDULE_TIMEOUT, NULL);
+}
+
+/*
+ * Check driver supplied waitchk structs for syncpt thresholds
+ * that have already been satisfied and NULL the comparison (to
+ * avoid a wrap condition in the HW).
+ *
+ * @param: sp - global shadowed syncpt struct
+ * @param: nvmap - needed to access command buffer
+ * @param: mask - bit mask of syncpt IDs referenced in WAITs
+ * @param: wait - start of filled in array of waitchk structs
+ * @param: waitend - end ptr (one beyond last valid waitchk)
+ */
+int nvhost_syncpt_wait_check(struct nvhost_syncpt *sp,
+                        struct nvmap_client *nvmap,
+                        u32 mask,
+                        struct nvhost_waitchk *wait,
+                        int num_waitchk);
+
+void nvhost_syncpt_debug(struct nvhost_syncpt *sp);
+
+int nvhost_mutex_try_lock(struct nvhost_syncpt *sp, int idx);
+
+void nvhost_mutex_unlock(struct nvhost_syncpt *sp, int idx);
+
+#endif