soc/amd/picasso,stoneyridge: Unify set_nvs_sws()

Change-Id: I673f038b4ce3c4141db128a65be71e7a242dfd28
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48856
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

4 files changed, 65 insertions, 43 deletions

diff --git a/src/soc/amd/common/block/acpi/Makefile.inc b/src/soc/amd/common/block/acpi/Makefile.inc
index 10e522f064..c6a4725b85 100644
--- a/src/soc/amd/common/block/acpi/Makefile.inc
+++ b/src/soc/amd/common/block/acpi/Makefile.inc
@@ -7,4 +7,6 @@ ramstage-y += acpi.c
 postcar-y += acpi.c
 smm-y += acpi.c
 
+ramstage-y += pm_state.c
+
 endif # CONFIG_SOC_AMD_COMMON_BLOCK_ACPI
diff --git a/src/soc/amd/common/block/acpi/acpi.c b/src/soc/amd/common/block/acpi/acpi.c
index 572faa51a1..43cc49ccb0 100644
--- a/src/soc/amd/common/block/acpi/acpi.c
+++ b/src/soc/amd/common/block/acpi/acpi.c
@@ -119,47 +119,6 @@ void acpi_clear_pm_gpe_status(void)
 	acpi_write32(MMIO_ACPI_GPE0_STS, acpi_read32(MMIO_ACPI_GPE0_STS));
 }
 
-static int get_index_bit(uint32_t value, uint16_t limit)
-{
-	uint16_t i;
-	uint32_t t;
-
-	if (limit >= TOTAL_BITS(uint32_t))
-		return -1;
-
-	/* get a mask of valid bits. Ex limit = 3, set bits 0-2 */
-	t = (1 << limit) - 1;
-	if ((value & t) == 0)
-		return -1;
-	t = 1;
-	for (i = 0; i < limit; i++) {
-		if (value & t)
-			break;
-		t <<= 1;
-	}
-	return i;
-}
-
-void pm_fill_gnvs(const struct acpi_pm_gpe_state *state)
-{
-	int index;
-	struct global_nvs *gnvs = acpi_get_gnvs();
-	if (gnvs == NULL)
-		return;
-
-	index = get_index_bit(state->pm1_sts & state->pm1_en, PM1_LIMIT);
-	if (index < 0)
-		gnvs->pm1i = ~0ULL;
-	else
-		gnvs->pm1i = index;
-
-	index = get_index_bit(state->gpe0_sts & state->gpe0_en, GPE0_LIMIT);
-	if (index < 0)
-		gnvs->gpei = ~0ULL;
-	else
-		gnvs->gpei = index;
-}
-
 int acpi_get_sleep_type(void)
 {
 	return acpi_sleep_from_pm1(acpi_read16(MMIO_ACPI_PM1_CNT_BLK));
diff --git a/src/soc/amd/common/block/acpi/pm_state.c b/src/soc/amd/common/block/acpi/pm_state.c
new file mode 100644
index 0000000000..5b7567549a
--- /dev/null
+++ b/src/soc/amd/common/block/acpi/pm_state.c
@@ -0,0 +1,63 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <acpi/acpi_gnvs.h>
+#include <bootstate.h>
+#include <cbmem.h>
+#include <soc/acpi.h>
+#include <soc/nvs.h>
+#include <soc/southbridge.h>
+#include <types.h>
+
+static int get_index_bit(uint32_t value, uint16_t limit)
+{
+	uint16_t i;
+	uint32_t t;
+
+	if (limit >= TOTAL_BITS(uint32_t))
+		return -1;
+
+	/* get a mask of valid bits. Ex limit = 3, set bits 0-2 */
+	t = (1 << limit) - 1;
+	if ((value & t) == 0)
+		return -1;
+	t = 1;
+	for (i = 0; i < limit; i++) {
+		if (value & t)
+			break;
+		t <<= 1;
+	}
+	return i;
+}
+
+static void pm_fill_gnvs(const struct acpi_pm_gpe_state *state)
+{
+	int index;
+	struct global_nvs *gnvs = acpi_get_gnvs();
+	if (gnvs == NULL)
+		return;
+
+	index = get_index_bit(state->pm1_sts & state->pm1_en, PM1_LIMIT);
+	if (index < 0)
+		gnvs->pm1i = ~0ULL;
+	else
+		gnvs->pm1i = index;
+
+	index = get_index_bit(state->gpe0_sts & state->gpe0_en, GPE0_LIMIT);
+	if (index < 0)
+		gnvs->gpei = ~0ULL;
+	else
+		gnvs->gpei = index;
+}
+
+static void set_nvs_sws(void *unused)
+{
+	struct chipset_state *state;
+
+	state = cbmem_find(CBMEM_ID_POWER_STATE);
+	if (state == NULL)
+		return;
+
+	pm_fill_gnvs(&state->gpe_state);
+}
+
+BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, set_nvs_sws, NULL);
diff --git a/src/soc/amd/common/block/include/amdblocks/acpi.h b/src/soc/amd/common/block/include/amdblocks/acpi.h
index 0512ad69ff..74b8408488 100644
--- a/src/soc/amd/common/block/include/amdblocks/acpi.h
+++ b/src/soc/amd/common/block/include/amdblocks/acpi.h
@@ -32,8 +32,6 @@ void acpi_fill_pm_gpe_state(struct acpi_pm_gpe_state *state);
 void acpi_pm_gpe_add_events_print_events(const struct acpi_pm_gpe_state *state);
 /* Clear PM and GPE status registers. */
 void acpi_clear_pm_gpe_status(void);
-/* Fill GNVS object from PM GPE object. */
-void pm_fill_gnvs(const struct acpi_pm_gpe_state *state);
 
 /*
  * If a system reset is about to be requested, modify the PM1 register so it