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Commit a6bde3f2 authored by Jennifer L. Zenner's avatar Jennifer L. Zenner
Browse files

msm: ipa3: Add support for IPA/GSI register dump/collection 



Add functionality to the IPA/GSI driver in support of a register
dump/collection feature.  Register's values are collected upon system
crash.

Change-Id: I6ccc5a801fd2cf9cd8e92ad4e2c9244a88fae393
CRs-Fixed: 2342813
Acked-by: default avatarPerry Randise <prandise@qti.qualcomm.com>
Signed-off-by: default avatarJennifer L. Zenner <jzenner@codeaurora.org>
parent 9867d2cc

drivers/platform/msm/Kconfig

+28 −0
Original line number Diff line number Diff line
@@ -212,4 +212,32 @@ config IPA_EMULATION 
	help

	  This option is used only when building the X86 version of

	  the IPA/GSI driver. Never set this when building for ARM.



config IPA3_REGDUMP

	bool "Dump or collect IPA/GSI register values on Linux crash"

	depends on IPA3

	help

	  This option is to be used when the saving of IPA/GSI

	  register state is desired upon system crash.



choice

	prompt "Platform whose registers are to be dumped/collected"

	depends on IPA3_REGDUMP



config IPA3_REGDUMP_SM8150

	bool "The sm8150 platform"

	depends on IPA3_REGDUMP

	depends on ARCH_SM8150

	help

	  The sm8150 platform's registers will be dumped/collected.



endchoice



config IPA3_REGDUMP_NUM_EXTRA_ENDP_REGS

	int "The number of extra endp registers for remaining pipes"

	depends on IPA3_REGDUMP

	default 0

	help

	  If the platform has extra endpoint registers for remaining

	  pipes, please express how many here.

endmenu

drivers/platform/msm/gsi/gsi.c

+2 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.

/* Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -2503,6 +2503,7 @@ int gsi_write_channel_scratch3_reg(unsigned long chan_hdl, 
	mutex_unlock(&ctx->mlock);

	return GSI_STATUS_SUCCESS;

}

EXPORT_SYMBOL(gsi_write_channel_scratch3_reg);



static void __gsi_read_channel_scratch(unsigned long chan_hdl,

		union __packed gsi_channel_scratch * val)

drivers/platform/msm/ipa/ipa_v3/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -11,3 +11,7 @@ ipat-$(CONFIG_IPA_EMULATION) += ipa_dt_replacement.o 
obj-$(CONFIG_RMNET_IPA3) += rmnet_ipa.o ipa_qmi_service_v01.o ipa_qmi_service.o rmnet_ipa_fd_ioctl.o



obj-$(CONFIG_IPA3_MHI_PROXY) += ipa_mhi_proxy.o



ipat-$(CONFIG_IPA3_REGDUMP) += dump/ipa_reg_dump.o



ccflags-$(CONFIG_IPA3_REGDUMP_SM8150) += -Idrivers/platform/msm/ipa/ipa_v3/dump/sm8150

drivers/platform/msm/ipa/ipa_v3/dump/ipa_reg_dump.c

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+1429 −0

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drivers/platform/msm/ipa/ipa_v3/dump/ipa_reg_dump.h

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+1284 −0

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