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Commit 3b4df3c4 authored by Dhaval Patel's avatar Dhaval Patel
Browse files

msm: mdss: dump vbif debug bus information in ram 



New test points in vbif debug bus floods the log buffer
with print messages. This overwrites the necessary logs from
ring  buffer. This change dumps vbif debug bus information only
in ram by default. User can update the setting from debugfs
if print messages are intended.

Change-Id: I745c8e9c67a946f73a012095cf080d1161e453e7
Signed-off-by: default avatarDhaval Patel <pdhaval@codeaurora.org>
parent 47d114be

drivers/video/msm/mdss/mdss_debug_xlog.c

+7 −2
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ 
#define XLOG_DEFAULT_PANIC 1

#define XLOG_DEFAULT_REGDUMP 0x2 /* dump in RAM */

#define XLOG_DEFAULT_DBGBUSDUMP 0x3 /* dump in LOG & RAM */

#define XLOG_DEFAULT_VBIF_DBGBUSDUMP 0x2 /* dump in RAM */



#define MDSS_XLOG_ENTRY	256

#define MDSS_XLOG_MAX_DATA 6
@@ -57,6 +58,7 @@ struct mdss_dbg_xlog { 
	u32 panic_on_err;

	u32 enable_reg_dump;

	u32 enable_dbgbus_dump;

	u32 enable_vbif_dbgbus_dump;

	struct work_struct xlog_dump_work;

	struct mdss_debug_base *blk_arr[MDSS_DEBUG_BASE_MAX];

	bool work_panic;
@@ -565,10 +567,10 @@ static void mdss_xlog_dump_array(struct mdss_debug_base *blk_arr[], 
			&mdss_dbg_xlog.dbgbus_dump);



	if (dump_vbif_dbgbus) {

		mdss_dump_vbif_debug_bus(mdss_dbg_xlog.enable_dbgbus_dump,

		mdss_dump_vbif_debug_bus(mdss_dbg_xlog.enable_vbif_dbgbus_dump,

			&mdss_dbg_xlog.vbif_dbgbus_dump, true);



		mdss_dump_vbif_debug_bus(mdss_dbg_xlog.enable_dbgbus_dump,

		mdss_dump_vbif_debug_bus(mdss_dbg_xlog.enable_vbif_dbgbus_dump,

			&mdss_dbg_xlog.nrt_vbif_dbgbus_dump, false);

	}
@@ -710,11 +712,14 @@ int mdss_create_xlog_debug(struct mdss_debug_data *mdd) 
			    &mdss_dbg_xlog.enable_reg_dump);

	debugfs_create_u32("dbgbus_dump", 0644, mdss_dbg_xlog.xlog,

			    &mdss_dbg_xlog.enable_dbgbus_dump);

	debugfs_create_u32("vbif_dbgbus_dump", 0644, mdss_dbg_xlog.xlog,

			    &mdss_dbg_xlog.enable_vbif_dbgbus_dump);



	mdss_dbg_xlog.xlog_enable = XLOG_DEFAULT_ENABLE;

	mdss_dbg_xlog.panic_on_err = XLOG_DEFAULT_PANIC;

	mdss_dbg_xlog.enable_reg_dump = XLOG_DEFAULT_REGDUMP;

	mdss_dbg_xlog.enable_dbgbus_dump = XLOG_DEFAULT_DBGBUSDUMP;

	mdss_dbg_xlog.enable_vbif_dbgbus_dump = XLOG_DEFAULT_VBIF_DBGBUSDUMP;



	pr_info("xlog_status: enable:%d, panic:%d, dump:%d\n",

		mdss_dbg_xlog.xlog_enable, mdss_dbg_xlog.panic_on_err,