soc/intel: Update API name `pmc_send_bios_reset_pci_enum_done`

This patch updates PMC API name from `pmc_send_pci_enum_done` to
`pmc_send_bios_reset_pci_enum_done` to inform PMC IPC about BIOS done
is also set along with PMC enumeration being done.

BUG=b:270942083
TEST=Able to build and boot google/rex.

Change-Id: I1cf8cb1ecadeb68c109be6b0e751a3f2c448ae4f
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73332
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sukumar Ghorai <sukumar.ghorai@intel.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>

src/soc/intel/alderlake/lockdown.c

@@ -38,8 +38,8 @@ static void pmc_lockdown_cfg(int chipset_lockdown)
 					 PM_CFG_XRAM_READ_DISABLE);
 	}
 
-	/* Send PMC IPC to inform about PCI enumeration done */
+	/* Send PMC IPC to inform about both BIOS Reset and PCI enumeration done */
-	pmc_send_pci_enum_done();
+	pmc_send_bios_reset_pci_enum_done();
 }
 
 static void pch_lockdown_cfg(void)

src/soc/intel/common/block/include/intelblocks/pmclib.h

@@ -28,8 +28,11 @@ enum pch_pmc_xtal {
  */
 enum pch_pmc_xtal pmc_get_xtal_freq(void);
 
-/* pmc_send_pci_enum_done() - send PMC IPC to inform PCI enumeration is done. */
+/*
-void pmc_send_pci_enum_done(void);
+ * pmc_send_pci_enum_done() - send PMC IPC to inform both BIOS Reset
+ * and PCI enumeration is done.
+ */
+void pmc_send_bios_reset_pci_enum_done(void);
 
 /* Forward declare the power state struct here */
 struct chipset_power_state;

src/soc/intel/common/block/pmc/pmclib.c

@@ -24,6 +24,7 @@
 
 #define PMC_IPC_BIOS_RST_COMPLETE		0xd0
 #define PMC_IPC_BIOS_RST_SUBID_PCI_ENUM_DONE	0
+#define PMC_IPC_BIOS_RST_CMPL_STS_PCI_ENUM	BIT(0)
 
 static struct chipset_power_state power_state;
 
@@ -854,12 +855,13 @@ enum pch_pmc_xtal pmc_get_xtal_freq(void)
 	}
 }
 
-void pmc_send_pci_enum_done(void)
+void pmc_send_bios_reset_pci_enum_done(void)
 {
 	struct pmc_ipc_buffer req = { 0 };
 	struct pmc_ipc_buffer rsp;
 	uint32_t cmd;
 
+	req.buf[0] = PMC_IPC_BIOS_RST_CMPL_STS_PCI_ENUM;
 	cmd = pmc_make_ipc_cmd(PMC_IPC_BIOS_RST_COMPLETE,
 			 PMC_IPC_BIOS_RST_SUBID_PCI_ENUM_DONE, 0);
 	if (pmc_send_ipc_cmd(cmd, &req, &rsp) != CB_SUCCESS)

src/soc/intel/meteorlake/lockdown.c

@@ -32,8 +32,8 @@ static void pmc_lockdown_cfg(int chipset_lockdown)
 					 PM_CFG_XRAM_READ_DISABLE);
 	}
 
-	/* Send PMC IPC to inform about PCI enumeration done */
+	/* Send PMC IPC to inform about both BIOS Reset and PCI enumeration done */
-	pmc_send_pci_enum_done();
+	pmc_send_bios_reset_pci_enum_done();
 }
 
 static void soc_die_lockdown_cfg(void)