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Commit ab083043 authored by Prakash Gupta's avatar Prakash Gupta
Browse files

mem-offline: add a knob to allow to skip sending RPM/AOP msg 



Many a times RPM/AOP dependencies are not available. This limits the abiity
to verify mem-offline features. Allow an module param to dynamically
enable/disable sending rpm/aop messages for mem offline/online requests.

Add mem_offline.bypass_send_msg=1 to kernel bootargs to enable bypass.

Change-Id: I1489bb0454164015e749459866982a608c211f63
Signed-off-by: default avatarPrakash Gupta <guptap@codeaurora.org>
parent 38b1718d

drivers/soc/qcom/mem-offline.c

+14 −0
Original line number Diff line number Diff line
@@ -30,6 +30,14 @@ 
#define AOP_MSG_ADDR_HIGH_SHIFT		32

#define MAX_LEN				96



/**

 * bypass_send_msg - skip mem offline/online mesg sent to rpm/aop

 */

static bool bypass_send_msg;

module_param(bypass_send_msg, bool, 0644);

MODULE_PARM_DESC(bypass_send_msg,

	"skip mem offline/online mesg sent to rpm/aop.");



static unsigned long start_section_nr, end_section_nr;

static struct kobject *kobj;

static unsigned int sections_per_block;
@@ -242,6 +250,9 @@ static int send_msg(struct memory_notify *mn, bool online, int count) 
	unsigned long start, base_sec_nr, sec_nr, sections_per_segment;

	int ret, idx, i;



	if (bypass_send_msg)

		return 0;



	sections_per_segment = get_rounded_sections_per_segment();

	sec_nr = pfn_to_section_nr(SECTION_ALIGN_DOWN(mn->start_pfn));

	idx = (sec_nr - start_section_nr) / sections_per_segment;
@@ -1073,6 +1084,9 @@ static int mem_offline_driver_probe(struct platform_device *pdev) 
	pr_info("mem-offline: Added memory blocks ranging from mem%lu - mem%lu\n",

			start_section_nr, end_section_nr);



	if (bypass_send_msg)

		pr_info("mem-offline: bypass mode\n");



	return 0;



err_sysfs_remove_group: