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6579324a41
Add support for host1x client modules, and host1x channels to submit work to the clients. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
162 lines
3.7 KiB
C
162 lines
3.7 KiB
C
/*
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* Tegra host1x Job
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*
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* Copyright (c) 2011-2013, NVIDIA Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __HOST1X_JOB_H
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#define __HOST1X_JOB_H
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struct host1x_job_gather {
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u32 words;
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dma_addr_t base;
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struct host1x_bo *bo;
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int offset;
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bool handled;
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};
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struct host1x_cmdbuf {
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u32 handle;
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u32 offset;
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u32 words;
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u32 pad;
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};
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struct host1x_reloc {
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struct host1x_bo *cmdbuf;
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u32 cmdbuf_offset;
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struct host1x_bo *target;
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u32 target_offset;
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u32 shift;
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u32 pad;
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};
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struct host1x_waitchk {
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struct host1x_bo *bo;
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u32 offset;
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u32 syncpt_id;
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u32 thresh;
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};
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struct host1x_job_unpin_data {
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struct host1x_bo *bo;
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struct sg_table *sgt;
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};
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/*
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* Each submit is tracked as a host1x_job.
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*/
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struct host1x_job {
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/* When refcount goes to zero, job can be freed */
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struct kref ref;
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/* List entry */
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struct list_head list;
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/* Channel where job is submitted to */
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struct host1x_channel *channel;
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u32 client;
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/* Gathers and their memory */
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struct host1x_job_gather *gathers;
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unsigned int num_gathers;
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/* Wait checks to be processed at submit time */
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struct host1x_waitchk *waitchk;
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unsigned int num_waitchk;
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u32 waitchk_mask;
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/* Array of handles to be pinned & unpinned */
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struct host1x_reloc *relocarray;
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unsigned int num_relocs;
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struct host1x_job_unpin_data *unpins;
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unsigned int num_unpins;
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dma_addr_t *addr_phys;
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dma_addr_t *gather_addr_phys;
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dma_addr_t *reloc_addr_phys;
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/* Sync point id, number of increments and end related to the submit */
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u32 syncpt_id;
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u32 syncpt_incrs;
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u32 syncpt_end;
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/* Maximum time to wait for this job */
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unsigned int timeout;
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/* Index and number of slots used in the push buffer */
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unsigned int first_get;
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unsigned int num_slots;
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/* Copy of gathers */
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size_t gather_copy_size;
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dma_addr_t gather_copy;
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u8 *gather_copy_mapped;
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/* Check if register is marked as an address reg */
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int (*is_addr_reg)(struct device *dev, u32 reg, u32 class);
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/* Request a SETCLASS to this class */
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u32 class;
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/* Add a channel wait for previous ops to complete */
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bool serialize;
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};
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/*
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* Allocate memory for a job. Just enough memory will be allocated to
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* accomodate the submit.
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*/
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struct host1x_job *host1x_job_alloc(struct host1x_channel *ch,
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u32 num_cmdbufs, u32 num_relocs,
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u32 num_waitchks);
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/*
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* Add a gather to a job.
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*/
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void host1x_job_add_gather(struct host1x_job *job, struct host1x_bo *mem_id,
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u32 words, u32 offset);
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/*
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* Increment reference going to host1x_job.
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*/
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struct host1x_job *host1x_job_get(struct host1x_job *job);
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/*
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* Decrement reference job, free if goes to zero.
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*/
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void host1x_job_put(struct host1x_job *job);
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/*
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* Pin memory related to job. This handles relocation of addresses to the
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* host1x address space. Handles both the gather memory and any other memory
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* referred to from the gather buffers.
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*
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* Handles also patching out host waits that would wait for an expired sync
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* point value.
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*/
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int host1x_job_pin(struct host1x_job *job, struct device *dev);
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/*
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* Unpin memory related to job.
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*/
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void host1x_job_unpin(struct host1x_job *job);
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/*
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* Dump contents of job to debug output.
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*/
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void host1x_job_dump(struct device *dev, struct host1x_job *job);
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#endif
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