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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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5110e4de49
We can use raw_smp_processor_id() here because the processor ID is only used for debug output and therefore our use is preemption-unsafe. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
158 lines
5.2 KiB
C
158 lines
5.2 KiB
C
/*
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* IBM eServer eHCA Infiniband device driver for Linux on POWER
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*
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* auxiliary functions
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*
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* Authors: Christoph Raisch <raisch@de.ibm.com>
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* Hoang-Nam Nguyen <hnguyen@de.ibm.com>
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* Khadija Souissi <souissik@de.ibm.com>
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* Waleri Fomin <fomin@de.ibm.com>
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* Heiko J Schick <schickhj@de.ibm.com>
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*
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* Copyright (c) 2005 IBM Corporation
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*
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* This source code is distributed under a dual license of GPL v2.0 and OpenIB
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* BSD.
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*
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* OpenIB BSD License
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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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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef EHCA_TOOLS_H
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#define EHCA_TOOLS_H
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#include <linux/kernel.h>
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#include <linux/spinlock.h>
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#include <linux/delay.h>
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#include <linux/idr.h>
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#include <linux/kthread.h>
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#include <linux/mm.h>
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#include <linux/mman.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/vmalloc.h>
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#include <linux/version.h>
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#include <linux/notifier.h>
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#include <linux/cpu.h>
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#include <linux/device.h>
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#include <asm/atomic.h>
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#include <asm/abs_addr.h>
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#include <asm/ibmebus.h>
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#include <asm/io.h>
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#include <asm/pgtable.h>
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#include <asm/hvcall.h>
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extern int ehca_debug_level;
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#define ehca_dbg(ib_dev, format, arg...) \
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do { \
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if (unlikely(ehca_debug_level)) \
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dev_printk(KERN_DEBUG, (ib_dev)->dma_device, \
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"PU%04x EHCA_DBG:%s " format "\n", \
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raw_smp_processor_id(), __FUNCTION__, \
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## arg); \
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} while (0)
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#define ehca_info(ib_dev, format, arg...) \
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dev_info((ib_dev)->dma_device, "PU%04x EHCA_INFO:%s " format "\n", \
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raw_smp_processor_id(), __FUNCTION__, ## arg)
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#define ehca_warn(ib_dev, format, arg...) \
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dev_warn((ib_dev)->dma_device, "PU%04x EHCA_WARN:%s " format "\n", \
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raw_smp_processor_id(), __FUNCTION__, ## arg)
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#define ehca_err(ib_dev, format, arg...) \
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dev_err((ib_dev)->dma_device, "PU%04x EHCA_ERR:%s " format "\n", \
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raw_smp_processor_id(), __FUNCTION__, ## arg)
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/* use this one only if no ib_dev available */
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#define ehca_gen_dbg(format, arg...) \
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do { \
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if (unlikely(ehca_debug_level)) \
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printk(KERN_DEBUG "PU%04x EHCA_DBG:%s " format "\n", \
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raw_smp_processor_id(), __FUNCTION__, ## arg); \
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} while (0)
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#define ehca_gen_warn(format, arg...) \
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printk(KERN_INFO "PU%04x EHCA_WARN:%s " format "\n", \
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raw_smp_processor_id(), __FUNCTION__, ## arg)
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#define ehca_gen_err(format, arg...) \
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printk(KERN_ERR "PU%04x EHCA_ERR:%s " format "\n", \
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raw_smp_processor_id(), __FUNCTION__, ## arg)
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/**
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* ehca_dmp - printk a memory block, whose length is n*8 bytes.
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* Each line has the following layout:
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* <format string> adr=X ofs=Y <8 bytes hex> <8 bytes hex>
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*/
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#define ehca_dmp(adr, len, format, args...) \
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do { \
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unsigned int x; \
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unsigned int l = (unsigned int)(len); \
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unsigned char *deb = (unsigned char *)(adr); \
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for (x = 0; x < l; x += 16) { \
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printk(KERN_INFO "EHCA_DMP:%s " format \
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" adr=%p ofs=%04x %016lx %016lx\n", \
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__FUNCTION__, ##args, deb, x, \
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*((u64 *)&deb[0]), *((u64 *)&deb[8])); \
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deb += 16; \
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} \
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} while (0)
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/* define a bitmask, little endian version */
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#define EHCA_BMASK(pos, length) (((pos) << 16) + (length))
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/* define a bitmask, the ibm way... */
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#define EHCA_BMASK_IBM(from, to) (((63 - to) << 16) + ((to) - (from) + 1))
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/* internal function, don't use */
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#define EHCA_BMASK_SHIFTPOS(mask) (((mask) >> 16) & 0xffff)
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/* internal function, don't use */
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#define EHCA_BMASK_MASK(mask) (~0ULL >> ((64 - (mask)) & 0xffff))
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/**
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* EHCA_BMASK_SET - return value shifted and masked by mask
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* variable|=EHCA_BMASK_SET(MY_MASK,0x4711) ORs the bits in variable
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* variable&=~EHCA_BMASK_SET(MY_MASK,-1) clears the bits from the mask
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* in variable
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*/
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#define EHCA_BMASK_SET(mask, value) \
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((EHCA_BMASK_MASK(mask) & ((u64)(value))) << EHCA_BMASK_SHIFTPOS(mask))
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/**
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* EHCA_BMASK_GET - extract a parameter from value by mask
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*/
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#define EHCA_BMASK_GET(mask, value) \
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(EHCA_BMASK_MASK(mask) & (((u64)(value)) >> EHCA_BMASK_SHIFTPOS(mask)))
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/* Converts ehca to ib return code */
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int ehca2ib_return_code(u64 ehca_rc);
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#endif /* EHCA_TOOLS_H */
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