4373261be0
Instead of using __KVM_NVHE_HYPERVISOR__ flag from NVHE, add generic flag(__DISABLE_TRACE_MMIO__) for disabling register read/write tracing. This helps to disable the tracing for a specific driver to avoid flooding of register read/write operation logging. For example - CFLAGS_msm_geni_serial.o := -D__DISABLE_TRACE_MMIO__ Bug: 190629271 Change-Id: Ic8e84eb84a485058d6a37cc2b495f5584c7d2b43 Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2021, The Linux Foundation. All rights reserved.
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*/
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#ifndef __LOG_MMIORW_H__
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#define __LOG_MMIORW_H__
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#include <linux/types.h>
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#include <linux/atomic.h>
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#include <linux/tracepoint-defs.h>
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/*
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* TODO - io.h is included in NVHE files and these tracepoints are getting
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* enabled for NVHE too. To avoid these tracepoints enabling in NHVE below
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* condition is introduced.
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* !(defined(__DISABLE_TRACE_MMIO__))
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*/
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#if IS_ENABLED(CONFIG_TRACE_MMIO_ACCESS) && !(defined(__DISABLE_TRACE_MMIO__))
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DECLARE_TRACEPOINT(rwmmio_write);
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DECLARE_TRACEPOINT(rwmmio_read);
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DECLARE_TRACEPOINT(rwmmio_post_read);
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void __log_write_mmio(u64 val, u8 width, volatile void __iomem *addr);
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void __log_read_mmio(u8 width, const volatile void __iomem *addr);
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void __log_post_read_mmio(u64 val, u8 width, const volatile void __iomem *addr);
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#define log_write_mmio(val, width, addr) \
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do { \
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if (tracepoint_enabled(rwmmio_write)) \
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__log_write_mmio(val, width, addr); \
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} while (0)
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#define log_read_mmio(width, addr) \
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do { \
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if (tracepoint_enabled(rwmmio_read)) \
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__log_read_mmio(width, addr); \
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} while (0)
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#define log_post_read_mmio(val, width, addr) \
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do { \
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if (tracepoint_enabled(rwmmio_post_read)) \
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__log_post_read_mmio(val, width, addr); \
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} while (0)
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#else
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static inline void log_write_mmio(u64 val, u8 width, volatile void __iomem *addr)
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{ }
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static inline void log_read_mmio(u8 width, const volatile void __iomem *addr)
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{ }
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static inline void log_post_read_mmio(u64 val, u8 width, const volatile void __iomem *addr)
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{ }
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#endif /* CONFIG_TRACE_MMIO_ACCESS */
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#endif /* __LOG_MMIORW_H__ */
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