1 files changed, 150 insertions, 0 deletions

diff --git a/drivers/video/tegra/host/nvhost_job.h b/drivers/video/tegra/host/nvhost_job.h
new file mode 100644
index 00000000000..ad9d1af60da
--- /dev/null
+++ b/drivers/video/tegra/host/nvhost_job.h
@@ -0,0 +1,150 @@
+/*
+ * drivers/video/tegra/host/nvhost_job.h
+ *
+ * Tegra Graphics Host Interrupt Management
+ *
+ * Copyright (c) 2011-2012, 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_JOB_H
+#define __NVHOST_JOB_H
+
+#include <linux/nvhost_ioctl.h>
+
+struct nvhost_channel;
+struct nvhost_hwctx;
+struct nvmap_client;
+struct nvhost_waitchk;
+struct nvmap_handle;
+
+/*
+ * Each submit is tracked as a nvhost_job.
+ */
+struct nvhost_job {
+        /* When refcount goes to zero, job can be freed */
+        struct kref ref;
+
+        /* List entry */
+        struct list_head list;
+
+        /* Channel where job is submitted to */
+        struct nvhost_channel *ch;
+
+        /* Hardware context valid for this client */
+        struct nvhost_hwctx *hwctx;
+        int clientid;
+
+        /* Nvmap to be used for pinning & unpinning memory */
+        struct nvmap_client *nvmap;
+
+        /* Gathers and their memory */
+        struct nvmap_handle_ref *gather_mem;
+        struct nvhost_channel_gather *gathers;
+        int num_gathers;
+        int gather_mem_size;
+
+        /* Wait checks to be processed at submit time */
+        struct nvhost_waitchk *waitchk;
+        int num_waitchk;
+        u32 waitchk_mask;
+
+        /* Array of handles to be pinned & unpinned */
+        struct nvmap_pinarray_elem *pinarray;
+        int num_pins;
+        struct nvmap_handle **unpins;
+        int num_unpins;
+
+        /* Sync point id, number of increments and end related to the submit */
+        u32 syncpt_id;
+        u32 syncpt_incrs;
+        u32 syncpt_end;
+
+        /* Priority of this submit. */
+        int priority;
+
+        /* Maximum time to wait for this job */
+        int timeout;
+
+        /* Null kickoff prevents submit from being sent to hardware */
+        bool null_kickoff;
+
+        /* Index and number of slots used in the push buffer */
+        int first_get;
+        int num_slots;
+
+        /* Context to be freed */
+        struct nvhost_hwctx *hwctxref;
+};
+
+/*
+ * Allocate memory for a job. Just enough memory will be allocated to
+ * accomodate the submit announced in submit header.
+ */
+struct nvhost_job *nvhost_job_alloc(struct nvhost_channel *ch,
+                struct nvhost_hwctx *hwctx,
+                struct nvhost_submit_hdr_ext *hdr,
+                struct nvmap_client *nvmap,
+                int priority, int clientid);
+
+/*
+ * Allocate memory for a job. Just enough memory will be allocated to
+ * accomodate the submit announced in submit header. Gather memory from
+ * oldjob will be reused, and nvhost_job_put() will be called to it.
+ */
+struct nvhost_job *nvhost_job_realloc(struct nvhost_job *oldjob,
+                struct nvhost_hwctx *hwctx,
+                struct nvhost_submit_hdr_ext *hdr,
+                struct nvmap_client *nvmap,
+                int priority, int clientid);
+
+/*
+ * Add a gather to a job.
+ */
+void nvhost_job_add_gather(struct nvhost_job *job,
+                u32 mem_id, u32 words, u32 offset);
+
+/*
+ * Increment reference going to nvhost_job.
+ */
+void nvhost_job_get(struct nvhost_job *job);
+
+/*
+ * Increment reference for a hardware context.
+ */
+void nvhost_job_get_hwctx(struct nvhost_job *job, struct nvhost_hwctx *hwctx);
+
+/*
+ * Decrement reference job, free if goes to zero.
+ */
+void nvhost_job_put(struct nvhost_job *job);
+
+/*
+ * Pin memory related to job. This handles relocation of addresses to the
+ * host1x address space. Handles both the gather memory and any other memory
+ * referred to from the gather buffers.
+ */
+int nvhost_job_pin(struct nvhost_job *job);
+
+/*
+ * Unpin memory related to job.
+ */
+void nvhost_job_unpin(struct nvhost_job *job);
+
+/*
+ * Dump contents of job to debug output.
+ */
+void nvhost_job_dump(struct device *dev, struct nvhost_job *job);
+
+#endif