From 2dc5eadccc29795a5923afaf2c7406ec98df482e Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Sat, 14 Oct 2017 18:12:25 -0700 Subject: elog: Support logging S0ix sleep/wake info in elog 1. Add support for new GSMI commands to log S0ix entry/exit information in elog. 2. In case of resume, provide callbacks to allow platform and mainboard to log any wake source information. BUG=b:67874513 Change-Id: I593e8a9e31cad720ac1f77aab447a0dbdbe9a28b Signed-off-by: Furquan Shaikh Reviewed-on: https://review.coreboot.org/22079 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel Reviewed-by: Aaron Durbin --- src/drivers/elog/gsmi.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'src/drivers') diff --git a/src/drivers/elog/gsmi.c b/src/drivers/elog/gsmi.c index cd94cf61b6..42bfd0f183 100644 --- a/src/drivers/elog/gsmi.c +++ b/src/drivers/elog/gsmi.c @@ -25,6 +25,8 @@ #define GSMI_CMD_SET_EVENT_LOG 0x08 #define GSMI_CMD_CLEAR_EVENT_LOG 0x09 +#define GSMI_CMD_LOG_S0IX_SUSPEND 0x0a +#define GSMI_CMD_LOG_S0IX_RESUME 0x0b #define GSMI_CMD_HANDSHAKE_TYPE 0xc1 #define GSMI_HANDSHAKE_NONE 0x7f @@ -46,6 +48,16 @@ struct gsmi_clear_eventlog_param { u32 data_type; } __packed; +void __attribute__((weak)) elog_gsmi_cb_platform_log_wake_source(void) +{ + /* Default weak implementation, does nothing. */ +} + +void __attribute__((weak)) elog_gsmi_cb_mainboard_log_wake_source(void) +{ + /* Default weak implementation, does nothing. */ +} + /* Param is usually EBX, ret in EAX */ u32 gsmi_exec(u8 command, u32 *param) { @@ -105,6 +117,19 @@ u32 gsmi_exec(u8 command, u32 *param) ret = GSMI_RET_SUCCESS; break; + case GSMI_CMD_LOG_S0IX_SUSPEND: + case GSMI_CMD_LOG_S0IX_RESUME: + ret = GSMI_RET_SUCCESS; + + if (command == GSMI_CMD_LOG_S0IX_SUSPEND) + elog_add_event(ELOG_TYPE_S0IX_ENTER); + else { + elog_add_event(ELOG_TYPE_S0IX_EXIT); + elog_gsmi_cb_platform_log_wake_source(); + elog_gsmi_cb_mainboard_log_wake_source(); + } + break; + default: printk(BIOS_DEBUG, "GSMI Unknown: 0x%02x\n", command); break; -- cgit v1.2.3