0084bbdb7d
This is a snapshot of the msm_rtb driver from kernel/trace taken as of msm-4.4 commit <9d9cf7636c0d82> (Merge "clk: msm: clock-gpu-cobalt: Update the GPU PLL FMAXes") CRs-Fixed: 1055807 Change-Id: I8caff1efbebe1de0cd02c6d7ee7721ebec2d1de1 Signed-off-by: Bruce Levy <blevy@codeaurora.org> Signed-off-by: Bhargav Gurappadi <bhargavg1@codeaurora.org>
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
/*
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* Copyright (c) 2012-2014, 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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#ifndef __MSM_RTB_H__
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#define __MSM_RTB_H__
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/*
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* These numbers are used from the kernel command line and sysfs
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* to control filtering. Remove items from here with extreme caution.
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*/
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enum logk_event_type {
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LOGK_NONE = 0,
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LOGK_READL = 1,
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LOGK_WRITEL = 2,
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LOGK_LOGBUF = 3,
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LOGK_HOTPLUG = 4,
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LOGK_CTXID = 5,
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LOGK_TIMESTAMP = 6,
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LOGK_L2CPREAD = 7,
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LOGK_L2CPWRITE = 8,
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LOGK_IRQ = 9,
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};
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#define LOGTYPE_NOPC 0x80
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struct msm_rtb_platform_data {
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unsigned int size;
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};
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#if defined(CONFIG_QCOM_RTB)
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/*
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* returns 1 if data was logged, 0 otherwise
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*/
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int uncached_logk_pc(enum logk_event_type log_type, void *caller,
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void *data);
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/*
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* returns 1 if data was logged, 0 otherwise
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*/
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int uncached_logk(enum logk_event_type log_type, void *data);
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#define ETB_WAYPOINT do { \
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BRANCH_TO_NEXT_ISTR; \
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nop(); \
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BRANCH_TO_NEXT_ISTR; \
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nop(); \
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} while (0)
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#define BRANCH_TO_NEXT_ISTR asm volatile("b .+4\n" : : : "memory")
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/*
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* both the mb and the isb are needed to ensure enough waypoints for
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* etb tracing
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*/
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#define LOG_BARRIER do { \
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mb(); \
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isb();\
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} while (0)
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#else
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static inline int uncached_logk_pc(enum logk_event_type log_type,
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void *caller,
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void *data) { return 0; }
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static inline int uncached_logk(enum logk_event_type log_type,
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void *data) { return 0; }
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#define ETB_WAYPOINT
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#define BRANCH_TO_NEXT_ISTR
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/*
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* Due to a GCC bug, we need to have a nop here in order to prevent an extra
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* read from being generated after the write.
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*/
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#define LOG_BARRIER nop()
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#endif
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#endif
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