156 lines
4.2 KiB
C
156 lines
4.2 KiB
C
/* Copyright (c) 2002,2007-2013, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __ADRENO_RINGBUFFER_H
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#define __ADRENO_RINGBUFFER_H
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/*
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* Adreno ringbuffer sizes in bytes - these are converted to
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* the appropriate log2 values in the code
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*/
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#define KGSL_RB_SIZE (32 * 1024)
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#define KGSL_RB_BLKSIZE 16
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/* CP timestamp register */
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#define REG_CP_TIMESTAMP REG_SCRATCH_REG0
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struct kgsl_device;
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struct kgsl_device_private;
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struct adreno_ft_data;
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#define GSL_RB_MEMPTRS_SCRATCH_COUNT 8
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struct kgsl_rbmemptrs {
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int rptr;
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int wptr_poll;
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};
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#define GSL_RB_MEMPTRS_RPTR_OFFSET \
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(offsetof(struct kgsl_rbmemptrs, rptr))
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#define GSL_RB_MEMPTRS_WPTRPOLL_OFFSET \
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(offsetof(struct kgsl_rbmemptrs, wptr_poll))
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struct adreno_ringbuffer {
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struct kgsl_device *device;
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uint32_t flags;
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struct kgsl_memdesc buffer_desc;
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struct kgsl_memdesc memptrs_desc;
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struct kgsl_rbmemptrs *memptrs;
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/*ringbuffer size */
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unsigned int sizedwords;
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unsigned int wptr; /* write pointer offset in dwords from baseaddr */
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unsigned int rptr; /* read pointer offset in dwords from baseaddr */
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unsigned int timestamp[KGSL_MEMSTORE_MAX];
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};
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#define GSL_RB_WRITE(device, ring, gpuaddr, data) \
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do { \
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*ring = data; \
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wmb(); \
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kgsl_cffdump_setmem(device, gpuaddr, data, 4); \
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ring++; \
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gpuaddr += sizeof(uint); \
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} while (0)
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/* enable timestamp (...scratch0) memory shadowing */
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#define GSL_RB_MEMPTRS_SCRATCH_MASK 0x1
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/* mem rptr */
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#define GSL_RB_CNTL_NO_UPDATE 0x0 /* enable */
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#define GSL_RB_GET_READPTR(rb, data) \
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do { \
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*(data) = rb->memptrs->rptr; \
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} while (0)
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#define GSL_RB_CNTL_POLL_EN 0x0 /* disable */
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/*
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* protected mode error checking below register address 0x800
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* note: if CP_INTERRUPT packet is used then checking needs
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* to change to below register address 0x7C8
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*/
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#define GSL_RB_PROTECTED_MODE_CONTROL 0x200001F2
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int adreno_ringbuffer_issueibcmds(struct kgsl_device_private *dev_priv,
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struct kgsl_context *context,
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struct kgsl_ibdesc *ibdesc,
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unsigned int numibs,
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uint32_t *timestamp,
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unsigned int flags);
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int adreno_ringbuffer_init(struct kgsl_device *device);
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int adreno_ringbuffer_warm_start(struct adreno_ringbuffer *rb);
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int adreno_ringbuffer_start(struct adreno_ringbuffer *rb);
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void adreno_ringbuffer_stop(struct adreno_ringbuffer *rb);
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void adreno_ringbuffer_close(struct adreno_ringbuffer *rb);
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unsigned int adreno_ringbuffer_issuecmds(struct kgsl_device *device,
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struct adreno_context *drawctxt,
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unsigned int flags,
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unsigned int *cmdaddr,
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int sizedwords);
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void adreno_ringbuffer_submit(struct adreno_ringbuffer *rb);
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void kgsl_cp_intrcallback(struct kgsl_device *device);
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void adreno_ringbuffer_extract(struct adreno_ringbuffer *rb,
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struct adreno_ft_data *ft_data);
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void
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adreno_ringbuffer_restore(struct adreno_ringbuffer *rb, unsigned int *rb_buff,
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int num_rb_contents);
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unsigned int *adreno_ringbuffer_allocspace(struct adreno_ringbuffer *rb,
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struct adreno_context *context,
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unsigned int numcmds);
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int adreno_ringbuffer_read_pfp_ucode(struct kgsl_device *device);
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int adreno_ringbuffer_read_pm4_ucode(struct kgsl_device *device);
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static inline int adreno_ringbuffer_count(struct adreno_ringbuffer *rb,
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unsigned int rptr)
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{
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if (rb->wptr >= rptr)
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return rb->wptr - rptr;
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return rb->wptr + rb->sizedwords - rptr;
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}
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/* Increment a value by 4 bytes with wrap-around based on size */
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static inline unsigned int adreno_ringbuffer_inc_wrapped(unsigned int val,
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unsigned int size)
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{
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return (val + sizeof(unsigned int)) % size;
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}
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/* Decrement a value by 4 bytes with wrap-around based on size */
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static inline unsigned int adreno_ringbuffer_dec_wrapped(unsigned int val,
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unsigned int size)
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{
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return (val + size - sizeof(unsigned int)) % size;
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}
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#endif /* __ADRENO_RINGBUFFER_H */
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