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Commit 13d9d336 authored by Channagoud Kadabi's avatar Channagoud Kadabi
Browse files

drivers: edac: Make ecc polling configurable 



ECC can work both in polling and interrupt mode. Add config option to
enable polling mode.

Change-Id: I99668a143ecbd70a3a4f713f89268df64bfca2da
Signed-off-by: default avatarChannagoud Kadabi <ckadabi@codeaurora.org>
parent fa403c81

drivers/edac/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -514,6 +514,17 @@ config EDAC_QCOM_LLCC 
	  For debugging issues having to do with stability and overall system

	  health, you should probably say 'Y' here.



config EDAC_LLCC_POLL

	depends on EDAC_QCOM_LLCC

	bool "Poll on LLCC ECC registers - LLCC"

	help

	   This option chooses whether or not you want to poll on the LLCC

	   ECC registers. When this is enabled, the polling rate can be set as

	   a module parameter. By default, it will call the polling function

	   every second.

	   This option should only be used if the associated interrupt lines

	   are not enabled.



config EDAC_QCOM_LLCC_PANIC_ON_CE

	depends on EDAC_QCOM_LLCC

	bool "panic on correctable errors - qcom llcc"

drivers/edac/qcom_llcc_edac.c

+7 −1
Original line number Diff line number Diff line
@@ -78,10 +78,12 @@ 
#define DRP_TRP_INT_CLEAR	0x3

#define DRP_TRP_CNT_CLEAR	0x3



#ifdef CONFIG_EDAC_LLCC_POLL

static int poll_msec = 5000;

module_param(poll_msec, int, 0444);

#endif



static int interrupt_mode;

static int interrupt_mode = 1;

module_param(interrupt_mode, int, 0444);

MODULE_PARM_DESC(interrupt_mode,

		 "Controls whether to use interrupt or poll mode");
@@ -331,10 +333,12 @@ static void qcom_llcc_check_cache_errors 
	}

}



#ifdef CONFIG_EDAC_LLCC_POLL

static void qcom_llcc_poll_cache_errors(struct edac_device_ctl_info *edev_ctl)

{

	qcom_llcc_check_cache_errors(edev_ctl);

}

#endif



static irqreturn_t llcc_ecc_irq_handler

			(int irq, void *edev_ctl)
@@ -360,9 +364,11 @@ static int qcom_llcc_erp_probe(struct platform_device *pdev) 
	edev_ctl->mod_name = dev_name(dev);

	edev_ctl->dev_name = dev_name(dev);

	edev_ctl->ctl_name = "llcc";

#ifdef CONFIG_EDAC_LLCC_POLL

	edev_ctl->poll_msec = poll_msec;

	edev_ctl->edac_check = qcom_llcc_poll_cache_errors;

	edev_ctl->defer_work = 1;

#endif

	edev_ctl->panic_on_ce = LLCC_ERP_PANIC_ON_CE;

	edev_ctl->panic_on_ue = LLCC_ERP_PANIC_ON_UE;