lspci: Add support for Non-CXL Function Map DVSEC

Add Non-CXL Function Map DVSEC Registers 0-7 decoding according to
DVSEC Revision ID 0.

Signed-off-by: Jaxon Haws <jaxon.haws@amd.com>

2 files changed, 41 insertions, 1 deletions

diff --git a/lib/header.h b/lib/header.h
index 84600b5..63ee03c 100644
--- a/lib/header.h
+++ b/lib/header.h
@@ -1198,6 +1198,17 @@
 #define PCI_CXL_MLD_NUM_LD  0xa
 #define PCI_CXL_MLD_MAX_LD  0x10
 
+/* PCIe CXL Designated Vendor-Specific Capabilities for Non-CXL Function Map */
+#define PCI_CXL_FUN_MAP_LEN     0x2c
+#define PCI_CXL_FUN_MAP_REG_0   0x0c
+#define PCI_CXL_FUN_MAP_REG_1   0x10
+#define PCI_CXL_FUN_MAP_REG_2   0x14
+#define PCI_CXL_FUN_MAP_REG_3   0x18
+#define PCI_CXL_FUN_MAP_REG_4   0x1c
+#define PCI_CXL_FUN_MAP_REG_5   0x20
+#define PCI_CXL_FUN_MAP_REG_6   0x24
+#define PCI_CXL_FUN_MAP_REG_7   0x28
+
 /* Access Control Services */
 #define PCI_ACS_CAP		0x04	/* ACS Capability Register */
 #define PCI_ACS_CAP_VALID	0x0001	/* ACS Source Validation */
diff --git a/ls-ecaps.c b/ls-ecaps.c
index b4e6a63..df41626 100644
--- a/ls-ecaps.c
+++ b/ls-ecaps.c
@@ -1027,6 +1027,35 @@ dvsec_cxl_mld(struct device *d, int where)
 }
 
 static void
+dvsec_cxl_function_map(struct device *d, int where)
+{
+
+  printf("\t\tFuncMap 0: %08x\n",
+      (unsigned int)(get_conf_word(d, where + PCI_CXL_FUN_MAP_REG_0)));
+
+  printf("\t\tFuncMap 1: %08x\n",
+    (unsigned int)(get_conf_word(d, where + PCI_CXL_FUN_MAP_REG_1)));
+
+  printf("\t\tFuncMap 2: %08x\n",
+    (unsigned int)(get_conf_word(d, where + PCI_CXL_FUN_MAP_REG_2)));
+
+  printf("\t\tFuncMap 3: %08x\n",
+      (unsigned int)(get_conf_word(d, where + PCI_CXL_FUN_MAP_REG_3)));
+
+  printf("\t\tFuncMap 4: %08x\n",
+      (unsigned int)(get_conf_word(d, where + PCI_CXL_FUN_MAP_REG_4)));
+
+  printf("\t\tFuncMap 5: %08x\n",
+      (unsigned int)(get_conf_word(d, where + PCI_CXL_FUN_MAP_REG_5)));
+
+  printf("\t\tFuncMap 6: %08x\n",
+      (unsigned int)(get_conf_word(d, where + PCI_CXL_FUN_MAP_REG_6)));
+
+  printf("\t\tFuncMap 7: %08x\n",
+      (unsigned int)(get_conf_word(d, where + PCI_CXL_FUN_MAP_REG_7)));
+}
+
+static void
 cap_dvsec_cxl(struct device *d, int id, int rev, int where, int len)
 {
   printf(": CXL\n");
@@ -1042,7 +1071,7 @@ cap_dvsec_cxl(struct device *d, int id, int rev, int where, int len)
       dvsec_cxl_device(d, rev, where, len);
       break;
     case 2:
-      printf("\t\tNon-CXL Function Map DVSEC\n");
+      dvsec_cxl_function_map(d, where);
       break;
     case 3:
       dvsec_cxl_port(d, where, len);