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/*
* Tegra host1x Job
*
* Copyright (c) 2011-2013, 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 __HOST1X_JOB_H
#define __HOST1X_JOB_H
struct host1x_job_gather {
u32 words;
dma_addr_t base;
struct host1x_bo *bo;
int offset;
bool handled;
};
struct host1x_cmdbuf {
u32 handle;
u32 offset;
u32 words;
u32 pad;
};
struct host1x_reloc {
struct host1x_bo *cmdbuf;
u32 cmdbuf_offset;
struct host1x_bo *target;
u32 target_offset;
u32 shift;
u32 pad;
};
struct host1x_waitchk {
struct host1x_bo *bo;
u32 offset;
u32 syncpt_id;
u32 thresh;
};
struct host1x_job_unpin_data {
struct host1x_bo *bo;
struct sg_table *sgt;
};
/*
* Each submit is tracked as a host1x_job.
*/
struct host1x_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 host1x_channel *channel;
u32 client;
/* Gathers and their memory */
struct host1x_job_gather *gathers;
unsigned int num_gathers;
/* Wait checks to be processed at submit time */
struct host1x_waitchk *waitchk;
unsigned int num_waitchk;
u32 waitchk_mask;
/* Array of handles to be pinned & unpinned */
struct host1x_reloc *relocarray;
unsigned int num_relocs;
struct host1x_job_unpin_data *unpins;
unsigned int num_unpins;
dma_addr_t *addr_phys;
dma_addr_t *gather_addr_phys;
dma_addr_t *reloc_addr_phys;
/* Sync point id, number of increments and end related to the submit */
u32 syncpt_id;
u32 syncpt_incrs;
u32 syncpt_end;
/* Maximum time to wait for this job */
unsigned int timeout;
/* Index and number of slots used in the push buffer */
unsigned int first_get;
unsigned int num_slots;
/* Copy of gathers */
size_t gather_copy_size;
dma_addr_t gather_copy;
u8 *gather_copy_mapped;
/* Check if register is marked as an address reg */
int (*is_addr_reg)(struct device *dev, u32 reg, u32 class);
/* Request a SETCLASS to this class */
u32 class;
/* Add a channel wait for previous ops to complete */
bool serialize;
};
/*
* Allocate memory for a job. Just enough memory will be allocated to
* accomodate the submit.
*/
struct host1x_job *host1x_job_alloc(struct host1x_channel *ch,
u32 num_cmdbufs, u32 num_relocs,
u32 num_waitchks);
/*
* Add a gather to a job.
*/
void host1x_job_add_gather(struct host1x_job *job, struct host1x_bo *mem_id,
u32 words, u32 offset);
/*
* Increment reference going to host1x_job.
*/
struct host1x_job *host1x_job_get(struct host1x_job *job);
/*
* Decrement reference job, free if goes to zero.
*/
void host1x_job_put(struct host1x_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.
*
* Handles also patching out host waits that would wait for an expired sync
* point value.
*/
int host1x_job_pin(struct host1x_job *job, struct device *dev);
/*
* Unpin memory related to job.
*/
void host1x_job_unpin(struct host1x_job *job);
/*
* Dump contents of job to debug output.
*/
void host1x_job_dump(struct device *dev, struct host1x_job *job);
#endif
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