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134 lines
4.0 KiB
134 lines
4.0 KiB
/* 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/sched/signal.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.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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#include <linux/io.h> |
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#include <linux/delay.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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static inline void dpaa_flush(void *p) |
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{ |
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/* |
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* Only PPC needs to flush the cache currently - on ARM the mapping |
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* is non cacheable |
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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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#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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/* Initialize the devices private memory region */ |
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int qbman_init_private_mem(struct device *dev, int idx, dma_addr_t *addr, |
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size_t *size); |
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/* memremap() attributes for different platforms */ |
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#ifdef CONFIG_PPC |
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#define QBMAN_MEMREMAP_ATTR MEMREMAP_WB |
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#else |
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#define QBMAN_MEMREMAP_ATTR MEMREMAP_WC |
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#endif |
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static inline int dpaa_set_portal_irq_affinity(struct device *dev, |
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int irq, int cpu) |
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{ |
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int ret = 0; |
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if (!irq_can_set_affinity(irq)) { |
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dev_err(dev, "unable to set IRQ affinity\n"); |
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return -EINVAL; |
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} |
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if (cpu == -1 || !cpu_online(cpu)) |
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cpu = cpumask_any(cpu_online_mask); |
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ret = irq_set_affinity(irq, cpumask_of(cpu)); |
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if (ret) |
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dev_err(dev, "irq_set_affinity() on CPU %d failed\n", cpu); |
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return ret; |
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} |
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#endif /* __DPAA_SYS_H */
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