From 7e75f33de5a80d7a30d341149cd2ca13f2fe5423 Mon Sep 17 00:00:00 2001 From: Kyösti Mälkki Date: Sun, 14 Jun 2020 12:23:04 +0300 Subject: sb/intel/common/pmutil: Add dump_all_status() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change-Id: I10582941afd68425603f6c4cadd228797cd098e9 Signed-off-by: Kyösti Mälkki Reviewed-on: https://review.coreboot.org/c/coreboot/+/42360 Tested-by: build bot (Jenkins) Reviewed-by: Angel Pons --- src/southbridge/intel/common/pmutil.c | 9 ++++++++ src/southbridge/intel/common/pmutil.h | 2 ++ src/southbridge/intel/common/smi.c | 41 +++++++++++++---------------------- 3 files changed, 26 insertions(+), 26 deletions(-) diff --git a/src/southbridge/intel/common/pmutil.c b/src/southbridge/intel/common/pmutil.c index d0eeb04c7c..d8196f8c72 100644 --- a/src/southbridge/intel/common/pmutil.c +++ b/src/southbridge/intel/common/pmutil.c @@ -215,3 +215,12 @@ u16 reset_alt_gp_smi_status(void) return reg16; } + +void dump_all_status(void) +{ + dump_smi_status(reset_smi_status()); + dump_pm1_status(reset_pm1_status()); + dump_gpe0_status(reset_gpe0_status()); + dump_alt_gp_smi_status(reset_alt_gp_smi_status()); + dump_tco_status(reset_tco_status()); +} diff --git a/src/southbridge/intel/common/pmutil.h b/src/southbridge/intel/common/pmutil.h index 3f43999689..52b83dd264 100644 --- a/src/southbridge/intel/common/pmutil.h +++ b/src/southbridge/intel/common/pmutil.h @@ -125,6 +125,8 @@ void alt_gpi_mask(u16 clr, u16 set); void smi_set_eos(void); void dump_alt_gp_smi_status(u16 alt_gp_smi_sts); u16 reset_alt_gp_smi_status(void); +void dump_all_status(void); + void southbridge_smm_xhci_sleep(u8 slp_type); void gpi_route_interrupt(u8 gpi, u8 mode); void southbridge_gate_memory_reset(void); diff --git a/src/southbridge/intel/common/smi.c b/src/southbridge/intel/common/smi.c index 9bf763d75b..913cce0cfa 100644 --- a/src/southbridge/intel/common/smi.c +++ b/src/southbridge/intel/common/smi.c @@ -17,31 +17,30 @@ u16 get_pmbase(void) return lpc_get_pmbase(); } -static void smm_southbridge_enable(uint16_t pm1_events) +static int smi_enabled(void) { u32 smi_en; - u32 gpe0_en; - if (CONFIG(ELOG)) /* Log events from chipset before clearing */ + if (CONFIG(ELOG)) pch_log_state(); printk(BIOS_DEBUG, "Initializing southbridge SMI..."); - printk(BIOS_SPEW, " ... pmbase = 0x%04x\n", lpc_get_pmbase()); smi_en = read_pmbase32(SMI_EN); if (smi_en & APMC_EN) { printk(BIOS_INFO, "SMI# handler already enabled?\n"); - return; + return 1; } - printk(BIOS_DEBUG, "\n"); - dump_smi_status(reset_smi_status()); - dump_pm1_status(reset_pm1_status()); - dump_gpe0_status(reset_gpe0_status()); - dump_alt_gp_smi_status(reset_alt_gp_smi_status()); - dump_tco_status(reset_tco_status()); + return 0; +} + +static void smm_southbridge_enable(uint16_t pm1_events) +{ + u32 smi_en; + u32 gpe0_en; /* Disable GPE0 PME_B0 */ gpe0_en = read_pmbase32(GPE0_EN); @@ -73,6 +72,10 @@ static void smm_southbridge_enable(uint16_t pm1_events) void global_smi_enable(void) { + if (smi_enabled()) + return; + + dump_all_status(); smm_southbridge_enable(PWRBTN_EN | GBL_EN); } @@ -97,22 +100,8 @@ void smm_setup_structures(void *gnvs, void *tcg, void *smi1) void smm_southbridge_clear_state(void) { - u32 smi_en; - - if (CONFIG(ELOG)) - /* Log events from chipset before clearing */ - pch_log_state(); - - printk(BIOS_DEBUG, "Initializing Southbridge SMI...\n"); - printk(BIOS_SPEW, " ... pmbase = 0x%04x\n", get_pmbase()); - - smi_en = inl(get_pmbase() + SMI_EN); - if (smi_en & APMC_EN) { - printk(BIOS_INFO, "SMI# handler already enabled?\n"); + if (smi_enabled()) return; - } - - printk(BIOS_DEBUG, "\n"); /* Dump and clear status registers */ reset_smi_status(); -- cgit v1.2.3