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