[S] Change in coreboot[master]: payloads/libpayload: Support sending EOP from payload

[Kapil Porwal (Code Review)]

Kapil Porwal has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74767 )

Change subject: payloads/libpayload: Support sending EOP from payload
......................................................................

payloads/libpayload: Support sending EOP from payload

Add support for sending EOP from payload

BUG=b:279184514
TEST=Verify sending EOP from depthcharge

Signed-off-by: Kapil Porwal 
Change-Id: I6e52434b178ba2963c756241e588cb075f71ffa4
---
M payloads/libpayload/include/coreboot_tables.h
M payloads/libpayload/include/sysinfo.h
M payloads/libpayload/libc/coreboot.c
3 files changed, 31 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/74767/1

diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h
index 5f6a223..53637fe 100644
--- a/payloads/libpayload/include/coreboot_tables.h
+++ b/payloads/libpayload/include/coreboot_tables.h
@@ -80,6 +80,7 @@
    CB_TAG_TCPA_LOG			= 0x0036,
    CB_TAG_FMAP			= 0x0037,
    CB_TAG_SMMSTOREV2		= 0x0039,
+	CB_TAG_CSE_EOP			= 0x003b,
    CB_TAG_BOARD_CONFIG		= 0x0040,
    CB_TAG_ACPI_CNVS		= 0x0041,
    CB_TAG_TYPE_C_INFO		= 0x0042,
@@ -419,6 +420,12 @@
    u32 type;
 };

+struct cb_cse_eop {
+	uint32_t tag;
+	uint32_t size;
+	void (*send)(void);
+};
+
 /*
  * Handoff the ACPI RSDP
  */
diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h
index 12d8a13..1bb64fe 100644
--- a/payloads/libpayload/include/sysinfo.h
+++ b/payloads/libpayload/include/sysinfo.h
@@ -159,6 +159,7 @@
    uint32_t cbfs_ro_mcache_size;
    uintptr_t cbfs_rw_mcache_offset;
    uint32_t cbfs_rw_mcache_size;
+	struct cb_cse_eop *cse_eop;
 };

extern struct sysinfo_t lib_sysinfo;
diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c
index bcc9530..d48c7cf 100644
--- a/payloads/libpayload/libc/coreboot.c
+++ b/payloads/libpayload/libc/coreboot.c
@@ -277,6 +277,11 @@
    info->acpi_rsdp = cb_acpi_rsdp->rsdp_pointer;
 }

+static void cb_parse_cse_eop(unsigned char *ptr, struct sysinfo_t *info)
+{
+	info->cse_eop = (struct cb_cse_eop*)ptr;
+}
+
 int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
 {
    struct cb_header *header;
@@ -423,6 +428,9 @@
    	case CB_TAG_PCIE:
    		cb_parse_pcie(ptr, info);
    		break;
+		case CB_TAG_CSE_EOP:
+			cb_parse_cse_eop(ptr, info);
+			break;
    	default:
    		cb_parse_arch_specific(rec, info);
    		break;