104 lines
3.3 KiB
C
104 lines
3.3 KiB
C
/* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Freescale Semiconductor nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* ALTERNATIVELY, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") as published by the Free Software
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* Foundation, either version 2 of that License or (at your option) any
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* later version.
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*
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* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __DPAA_SYS_H
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#define __DPAA_SYS_H
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#include <linux/cpu.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/kthread.h>
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#include <linux/vmalloc.h>
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#include <linux/platform_device.h>
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#include <linux/of_reserved_mem.h>
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#include <linux/prefetch.h>
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#include <linux/genalloc.h>
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#include <asm/cacheflush.h>
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/* For 2-element tables related to cache-inhibited and cache-enabled mappings */
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#define DPAA_PORTAL_CE 0
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#define DPAA_PORTAL_CI 1
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#if (L1_CACHE_BYTES != 32) && (L1_CACHE_BYTES != 64)
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#error "Unsupported Cacheline Size"
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#endif
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static inline void dpaa_flush(void *p)
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{
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#ifdef CONFIG_PPC
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flush_dcache_range((unsigned long)p, (unsigned long)p+64);
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#elif defined(CONFIG_ARM32)
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__cpuc_flush_dcache_area(p, 64);
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#elif defined(CONFIG_ARM64)
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__flush_dcache_area(p, 64);
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#endif
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}
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#define dpaa_invalidate(p) dpaa_flush(p)
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#define dpaa_zero(p) memset(p, 0, 64)
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static inline void dpaa_touch_ro(void *p)
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{
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#if (L1_CACHE_BYTES == 32)
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prefetch(p+32);
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#endif
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prefetch(p);
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}
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/* Commonly used combo */
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static inline void dpaa_invalidate_touch_ro(void *p)
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{
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dpaa_invalidate(p);
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dpaa_touch_ro(p);
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}
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#ifdef CONFIG_FSL_DPAA_CHECKING
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#define DPAA_ASSERT(x) WARN_ON(!(x))
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#else
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#define DPAA_ASSERT(x)
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#endif
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/* cyclic helper for rings */
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static inline u8 dpaa_cyc_diff(u8 ringsize, u8 first, u8 last)
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{
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/* 'first' is included, 'last' is excluded */
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if (first <= last)
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return last - first;
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return ringsize + last - first;
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}
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/* Offset applied to genalloc pools due to zero being an error return */
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#define DPAA_GENALLOC_OFF 0x80000000
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#endif /* __DPAA_SYS_H */
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