arch/x86/ioapic: Promote ioapic_get_sci_pin()

Platform needs to implement this to provide information about SCI IRQ
pin and polarity, to be used for filling in ACPI FADT and MADT entries.

Change-Id: Icea7e9ca4abf3997c01617d2f78f25036d85a52f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74337
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

28 files changed, 56 insertions, 42 deletions

diff --git a/src/acpi/acpi.c b/src/acpi/acpi.c
index a2865cbf7e..c357e2bd23 100644
--- a/src/acpi/acpi.c
+++ b/src/acpi/acpi.c
@@ -226,7 +226,7 @@ int acpi_create_madt_ioapic_from_hw(acpi_madt_ioapic_t *ioapic, u32 addr)
 }
 #endif
 
-u16 acpi_sci_int(void)
+static u16 acpi_sci_int(void)
 {
 #if ENV_X86
 	u8 gsi, irq, flags;
@@ -1736,6 +1736,8 @@ static void acpi_create_fadt(acpi_fadt_t *fadt, acpi_facs_t *facs, void *dsdt)
 	if (CONFIG(USE_PC_CMOS_ALTCENTURY))
 		fadt->century = RTC_CLK_ALTCENTURY;
 
+	fadt->sci_int = acpi_sci_int();
+
 	arch_fill_fadt(fadt);
 
 	acpi_fill_fadt(fadt);
diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h
index 2c8f2efcc4..78a6005a7d 100644
--- a/src/include/acpi/acpi.h
+++ b/src/include/acpi/acpi.h
@@ -1345,8 +1345,6 @@ unsigned long acpi_create_madt_lapics_with_nmis(unsigned long current);
 
 unsigned long acpi_create_madt_lapic_nmis(unsigned long current);
 
-u16 acpi_sci_int(void);
-
 int acpi_create_srat_lapic(acpi_srat_lapic_t *lapic, u8 node, u8 apic);
 int acpi_create_srat_x2apic(acpi_srat_x2apic_t *x2apic, u32 node, u32 apic);
 int acpi_create_srat_mem(acpi_srat_mem_t *mem, u8 node, u32 basek, u32 sizek,
diff --git a/src/soc/amd/cezanne/acpi.c b/src/soc/amd/cezanne/acpi.c
index 0d2c517cc8..7a64c11c99 100644
--- a/src/soc/amd/cezanne/acpi.c
+++ b/src/soc/amd/cezanne/acpi.c
@@ -49,8 +49,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 
 	printk(BIOS_DEBUG, "pm_base: 0x%04x\n", ACPI_IO_BASE);
 
-	fadt->sci_int = ACPI_SCI_IRQ;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/soc/amd/common/block/lpc/lpc.c b/src/soc/amd/common/block/lpc/lpc.c
index 09c35db582..1fbff532fd 100644
--- a/src/soc/amd/common/block/lpc/lpc.c
+++ b/src/soc/amd/common/block/lpc/lpc.c
@@ -16,6 +16,7 @@
 #include <amdblocks/ioapic.h>
 #include <amdblocks/iomap.h>
 #include <amdblocks/lpc.h>
+#include <soc/acpi.h>
 #include <soc/iomap.h>
 #include <soc/lpc.h>
 #include <soc/southbridge.h>
@@ -34,6 +35,13 @@ static void setup_serirq(void)
 	pm_write8(PM_SERIRQ_CONF, byte);
 }
 
+void ioapic_get_sci_pin(u8 *gsi, u8 *irq, u8 *flags)
+{
+	*gsi = ACPI_SCI_IRQ;
+	*irq = ACPI_SCI_IRQ;
+	*flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW;
+}
+
 static void fch_ioapic_init(void)
 {
 	fch_enable_ioapic_decode();
diff --git a/src/soc/amd/glinda/acpi.c b/src/soc/amd/glinda/acpi.c
index 2943d7dcd0..d97dc0903f 100644
--- a/src/soc/amd/glinda/acpi.c
+++ b/src/soc/amd/glinda/acpi.c
@@ -52,8 +52,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 
 	printk(BIOS_DEBUG, "pm_base: 0x%04x\n", ACPI_IO_BASE);
 
-	fadt->sci_int = ACPI_SCI_IRQ;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/soc/amd/mendocino/acpi.c b/src/soc/amd/mendocino/acpi.c
index 8fb7237419..94cb246f81 100644
--- a/src/soc/amd/mendocino/acpi.c
+++ b/src/soc/amd/mendocino/acpi.c
@@ -51,8 +51,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 
 	printk(BIOS_DEBUG, "pm_base: 0x%04x\n", ACPI_IO_BASE);
 
-	fadt->sci_int = ACPI_SCI_IRQ;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/soc/amd/phoenix/acpi.c b/src/soc/amd/phoenix/acpi.c
index ea2a997854..427fb74ee9 100644
--- a/src/soc/amd/phoenix/acpi.c
+++ b/src/soc/amd/phoenix/acpi.c
@@ -52,8 +52,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 
 	printk(BIOS_DEBUG, "pm_base: 0x%04x\n", ACPI_IO_BASE);
 
-	fadt->sci_int = ACPI_SCI_IRQ;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/soc/amd/picasso/acpi.c b/src/soc/amd/picasso/acpi.c
index 341d9e059e..5d34f47fd8 100644
--- a/src/soc/amd/picasso/acpi.c
+++ b/src/soc/amd/picasso/acpi.c
@@ -56,8 +56,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 
 	printk(BIOS_DEBUG, "pm_base: 0x%04x\n", ACPI_IO_BASE);
 
-	fadt->sci_int = ACPI_SCI_IRQ;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/soc/amd/stoneyridge/acpi.c b/src/soc/amd/stoneyridge/acpi.c
index 39f13b6f47..9aef6088a1 100644
--- a/src/soc/amd/stoneyridge/acpi.c
+++ b/src/soc/amd/stoneyridge/acpi.c
@@ -50,8 +50,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 {
 	printk(BIOS_DEBUG, "pm_base: 0x%04x\n", ACPI_IO_BASE);
 
-	fadt->sci_int = ACPI_SCI_IRQ;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/soc/intel/baytrail/fadt.c b/src/soc/intel/baytrail/fadt.c
index a76d161c8d..c01a79a346 100644
--- a/src/soc/intel/baytrail/fadt.c
+++ b/src/soc/intel/baytrail/fadt.c
@@ -2,7 +2,6 @@
 
 #include <acpi/acpi.h>
 #include <cpu/x86/smm.h>
-#include <soc/acpi.h>
 #include <soc/iomap.h>
 #include <soc/pm.h>
 #include "chip.h"
@@ -11,8 +10,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 {
 	const uint16_t pmbase = ACPI_BASE_ADDRESS;
 
-	fadt->sci_int = acpi_sci_int();
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/soc/intel/braswell/fadt.c b/src/soc/intel/braswell/fadt.c
index a76d161c8d..d071b92a8c 100644
--- a/src/soc/intel/braswell/fadt.c
+++ b/src/soc/intel/braswell/fadt.c
@@ -11,8 +11,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 {
 	const uint16_t pmbase = ACPI_BASE_ADDRESS;
 
-	fadt->sci_int = acpi_sci_int();
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/soc/intel/broadwell/pch/fadt.c b/src/soc/intel/broadwell/pch/fadt.c
index 9355670b83..2ffebc3309 100644
--- a/src/soc/intel/broadwell/pch/fadt.c
+++ b/src/soc/intel/broadwell/pch/fadt.c
@@ -10,8 +10,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 {
 	const uint16_t pmbase = ACPI_BASE_ADDRESS;
 
-	fadt->sci_int = 9;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/soc/intel/broadwell/pch/lpc.c b/src/soc/intel/broadwell/pch/lpc.c
index 1ddee34122..9aaca215b8 100644
--- a/src/soc/intel/broadwell/pch/lpc.c
+++ b/src/soc/intel/broadwell/pch/lpc.c
@@ -36,6 +36,15 @@ static void pch_enable_ioapic(struct device *dev)
 	register_new_ioapic_gsi0(VIO_APIC_VADDR);
 }
 
+#define ACPI_SCI_IRQ	9
+
+void ioapic_get_sci_pin(u8 *gsi, u8 *irq, u8 *flags)
+{
+	*gsi = ACPI_SCI_IRQ;
+	*irq = ACPI_SCI_IRQ;
+	*flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH;
+}
+
 static void enable_hpet(struct device *dev)
 {
 	size_t i;
diff --git a/src/soc/intel/common/block/acpi/acpi.c b/src/soc/intel/common/block/acpi/acpi.c
index 50854fa374..1b5538ff4e 100644
--- a/src/soc/intel/common/block/acpi/acpi.c
+++ b/src/soc/intel/common/block/acpi/acpi.c
@@ -94,8 +94,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 {
 	const uint16_t pmbase = ACPI_BASE_ADDRESS;
 
-	fadt->sci_int = acpi_sci_int();
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/soc/intel/quark/lpc.c b/src/soc/intel/quark/lpc.c
index 92b7249293..115a7b9ace 100644
--- a/src/soc/intel/quark/lpc.c
+++ b/src/soc/intel/quark/lpc.c
@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include <arch/ioapic.h>
 #include <device/pci.h>
 #include <device/pci_ids.h>
 #include <soc/iomap.h>
@@ -34,6 +35,13 @@ static void pmc_read_resources(struct device *dev)
 	res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
 }
 
+/* Implemented just to fill FADT SCI_INT as 0. */
+void ioapic_get_sci_pin(u8 *gsi, u8 *irq, u8 *flags)
+{
+	*irq = 0;
+	*gsi = 0;
+}
+
 static struct device_operations device_ops = {
 	.read_resources		= pmc_read_resources,
 	.set_resources		= pci_dev_set_resources,
diff --git a/src/southbridge/amd/pi/hudson/fadt.c b/src/southbridge/amd/pi/hudson/fadt.c
index 1865d36b2c..fe65fb23da 100644
--- a/src/southbridge/amd/pi/hudson/fadt.c
+++ b/src/southbridge/amd/pi/hudson/fadt.c
@@ -25,8 +25,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 {
 	printk(BIOS_DEBUG, "pm_base: 0x%04x\n", HUDSON_ACPI_IO_BASE);
 
-	fadt->sci_int = 9;		/* HUDSON - IRQ 09 - ACPI SCI */
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = ACPI_SMI_CTL_PORT;
 		fadt->acpi_enable = ACPI_SMI_CMD_ENABLE;
diff --git a/src/southbridge/amd/pi/hudson/hudson.h b/src/southbridge/amd/pi/hudson/hudson.h
index e202824936..231766b472 100644
--- a/src/southbridge/amd/pi/hudson/hudson.h
+++ b/src/southbridge/amd/pi/hudson/hudson.h
@@ -42,6 +42,8 @@
 #define ACPI_GPE0_BLK		(HUDSON_ACPI_IO_BASE + 0x10) /* 8 bytes */
 #define ACPI_CPU_CONTROL	(HUDSON_ACPI_IO_BASE + 0x08) /* 6 bytes */
 
+#define ACPI_SCI_IRQ			9
+
 #define ACPI_SMI_CTL_PORT		0xb2
 #define ACPI_SMI_CMD_CST_CONTROL	0xde
 #define ACPI_SMI_CMD_PST_CONTROL	0xad
diff --git a/src/southbridge/amd/pi/hudson/sm.c b/src/southbridge/amd/pi/hudson/sm.c
index 2dc2ae3924..593f54805d 100644
--- a/src/southbridge/amd/pi/hudson/sm.c
+++ b/src/southbridge/amd/pi/hudson/sm.c
@@ -19,6 +19,13 @@
 * HUDSON enables SATA by default in SMBUS Control.
 */
 
+void ioapic_get_sci_pin(u8 *gsi, u8 *irq, u8 *flags)
+{
+	*gsi = ACPI_SCI_IRQ;
+	*irq = ACPI_SCI_IRQ;
+	*flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW;
+}
+
 static void sm_init(struct device *dev)
 {
 	register_new_ioapic_gsi0(VIO_APIC_VADDR);
diff --git a/src/southbridge/intel/bd82x6x/fadt.c b/src/southbridge/intel/bd82x6x/fadt.c
index 296ee2b878..31f2a068fa 100644
--- a/src/southbridge/intel/bd82x6x/fadt.c
+++ b/src/southbridge/intel/bd82x6x/fadt.c
@@ -12,8 +12,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	struct southbridge_intel_bd82x6x_config *chip = dev->chip_info;
 	u16 pmbase = pci_read_config16(dev, 0x40) & 0xfffe;
 
-	fadt->sci_int = 0x9;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/southbridge/intel/common/pmbase.c b/src/southbridge/intel/common/pmbase.c
index 2fddfc9f87..872d994210 100644
--- a/src/southbridge/intel/common/pmbase.c
+++ b/src/southbridge/intel/common/pmbase.c
@@ -2,6 +2,7 @@
 
 #include <acpi/acpi.h>
 #include <arch/io.h>
+#include <arch/ioapic.h>
 #include <assert.h>
 #include <bootmode.h>
 #include <device/pci_ops.h>
@@ -92,3 +93,12 @@ int platform_is_resuming(void)
 
 	return acpi_get_sleep_type() == ACPI_S3;
 }
+
+#define ACPI_SCI_IRQ	9
+
+void ioapic_get_sci_pin(u8 *gsi, u8 *irq, u8 *flags)
+{
+	*gsi = ACPI_SCI_IRQ;
+	*irq = ACPI_SCI_IRQ;
+	*flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH;
+}
diff --git a/src/southbridge/intel/i82371eb/fadt.c b/src/southbridge/intel/i82371eb/fadt.c
index d83925da74..66ae2bb5bc 100644
--- a/src/southbridge/intel/i82371eb/fadt.c
+++ b/src/southbridge/intel/i82371eb/fadt.c
@@ -16,8 +16,6 @@
  */
 void acpi_fill_fadt(acpi_fadt_t *fadt)
 {
-	fadt->sci_int = 9;
-
 	if (permanent_smi_handler()) {
 		/* TODO: SMI handler is not implemented. */
 		fadt->smi_cmd = 0x00;
diff --git a/src/southbridge/intel/i82371eb/isa.c b/src/southbridge/intel/i82371eb/isa.c
index c5329f4313..7d86e8a7ab 100644
--- a/src/southbridge/intel/i82371eb/isa.c
+++ b/src/southbridge/intel/i82371eb/isa.c
@@ -67,6 +67,15 @@ static void isa_init(struct device *dev)
 	}
 }
 
+#define ACPI_SCI_IRQ	9
+
+void ioapic_get_sci_pin(u8 *gsi, u8 *irq, u8 *flags)
+{
+	*gsi = ACPI_SCI_IRQ;
+	*irq = ACPI_SCI_IRQ;
+	*flags = MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH;
+}
+
 static void sb_read_resources(struct device *dev)
 {
 	struct resource *res;
diff --git a/src/southbridge/intel/i82801dx/fadt.c b/src/southbridge/intel/i82801dx/fadt.c
index 5b0194854a..5015659c32 100644
--- a/src/southbridge/intel/i82801dx/fadt.c
+++ b/src/southbridge/intel/i82801dx/fadt.c
@@ -8,8 +8,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 {
 	u16 pmbase = pci_read_config16(pcidev_on_root(0x1f, 0), 0x40) & 0xfffe;
 
-	fadt->sci_int = 0x9;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/southbridge/intel/i82801gx/fadt.c b/src/southbridge/intel/i82801gx/fadt.c
index 3f97145281..7cdd631ee0 100644
--- a/src/southbridge/intel/i82801gx/fadt.c
+++ b/src/southbridge/intel/i82801gx/fadt.c
@@ -13,8 +13,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	struct southbridge_intel_i82801gx_config *chip = dev->chip_info;
 	u16 pmbase = lpc_get_pmbase();
 
-	fadt->sci_int = 0x9;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/southbridge/intel/i82801ix/fadt.c b/src/southbridge/intel/i82801ix/fadt.c
index 78443ea053..92fece2e41 100644
--- a/src/southbridge/intel/i82801ix/fadt.c
+++ b/src/southbridge/intel/i82801ix/fadt.c
@@ -9,8 +9,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 {
 	u16 pmbase = pci_read_config16(pcidev_on_root(0x1f, 0), 0x40) & 0xfffe;
 
-	fadt->sci_int = 0x9;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/southbridge/intel/i82801jx/fadt.c b/src/southbridge/intel/i82801jx/fadt.c
index f0f4ca16e1..a2defd2fc8 100644
--- a/src/southbridge/intel/i82801jx/fadt.c
+++ b/src/southbridge/intel/i82801jx/fadt.c
@@ -9,8 +9,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 {
 	u16 pmbase = pci_read_config16(pcidev_on_root(0x1f, 0), 0x40) & 0xfffe;
 
-	fadt->sci_int = 0x9;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/southbridge/intel/ibexpeak/fadt.c b/src/southbridge/intel/ibexpeak/fadt.c
index dfb9774fad..a917fb8458 100644
--- a/src/southbridge/intel/ibexpeak/fadt.c
+++ b/src/southbridge/intel/ibexpeak/fadt.c
@@ -12,8 +12,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	struct southbridge_intel_ibexpeak_config *chip = dev->chip_info;
 	u16 pmbase = pci_read_config16(dev, 0x40) & 0xfffe;
 
-	fadt->sci_int = 0x9;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;
diff --git a/src/southbridge/intel/lynxpoint/fadt.c b/src/southbridge/intel/lynxpoint/fadt.c
index a90d0a857b..ee7b309d29 100644
--- a/src/southbridge/intel/lynxpoint/fadt.c
+++ b/src/southbridge/intel/lynxpoint/fadt.c
@@ -12,8 +12,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	struct southbridge_intel_lynxpoint_config *cfg = dev->chip_info;
 	u16 pmbase = get_pmbase();
 
-	fadt->sci_int = 0x9;
-
 	if (permanent_smi_handler()) {
 		fadt->smi_cmd = APM_CNT;
 		fadt->acpi_enable = APM_CNT_ACPI_ENABLE;