gard: Update chip unit data

Source the list of units from the hostboot source rather than the
previous hard coded list. The list of path element types changes
between generations so we need to add a level of indirection to
accommodate P9. This also changes the names used to match those
printed by Hostboot at IPL time and paves the way to adding support
for manual GARD record creation.

Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>

5 files changed, 187 insertions, 121 deletions

diff --git a/external/gard/gard.c b/external/gard/gard.c
index 1624a32..5d4e382 100644
--- a/external/gard/gard.c
+++ b/external/gard/gard.c
@@ -134,83 +134,35 @@ static void show_flash_err(int rc)
 	}
 }
 
-static const char *target_type_to_str(enum target_type t)
+/* FIXME: is this the same on p9? I thought the path types came from the XML
+ * rather than this stuff, maybe it's redundant?
+ *
+ * I don't think it is though since the target types are a bitmask rather than
+ * a plain enum.
+ */
+const struct chip_unit_desc *chip_units;
+int chip_unit_count;
+
+static void set_chip_gen(const struct chip_unit_desc *c)
 {
-	switch (t) {
-		case TYPE_NA:
-			return "Not applicable";
-		case TYPE_SYS:
-			return "System";
-		case TYPE_NODE:
-			return "Node";
-		case TYPE_DIMM:
-			return "Dimm";
-		case TYPE_MEMBUF:
-			return "Memory Buffer";
-		case TYPE_PROC:
-			return "Processor";
-		case TYPE_EX:
-			return "EX";
-		case TYPE_CORE:
-			return "Core";
-		case TYPE_L2:
-			return "L2 cache";
-		case TYPE_L3:
-			return "L3 cache";
-		case TYPE_L4:
-			return "L4 cache";
-		case TYPE_MCS:
-			return "MSC";
-		case TYPE_MBA:
-			return "MBA";
-		case TYPE_XBUS:
-			return "XBUS";
-		case TYPE_ABUS:
-			return "ABUS";
-		case TYPE_PCI:
-			return "PCI";
-		case TYPE_DPSS:
-			return "DPSS";
-		case TYPE_APSS:
-			return "APSS";
-		case TYPE_OCC:
-			return "OCC";
-		case TYPE_PSI:
-			return "PSI";
-		case TYPE_FSP:
-			return "FSP";
-		case TYPE_PNOR:
-			return "PNOR";
-		case TYPE_OSC:
-			return "OSC";
-		case TYPE_TODCLK:
-			return "Time of day clock";
-		case TYPE_CONTROL_NODE:
-			return "Control Node";
-		case TYPE_OSCREFCLK:
-			return "OSC Ref Clock";
-		case TYPE_OSCPCICLK:
-			return "OSC PCI Clock";
-		case TYPE_REFCLKENDPT:
-			return "Ref Clock";
-		case TYPE_PCICLKENDPT:
-			return "PCI Clock";
-		case TYPE_NX:
-			return "NX";
-		case TYPE_PORE:
-			return "PORE";
-		case TYPE_PCIESWITCH:
-			return "PCIE Switch";
-		case TYPE_CAPP:
-			return "CAPP";
-		case TYPE_FSI:
-			return "FSI";
-		case TYPE_TEST_FAIL:
-			return "Test Fail";
-		case TYPE_LAST_IN_RANGE:
-			return "Last";
+	chip_units = c;
+	chip_unit_count = 0;
+
+	while (strcmp("LAST_IN_RANGE", c->desc)) {
+		chip_unit_count++;
+		c++;
 	}
-	return "Unknown";
+}
+
+static const char *target_type_to_str(int type)
+{
+	int i;
+
+	for (i = 0; i < chip_unit_count; i++)
+		if (chip_units[i].type == type)
+			return chip_units[i].desc;
+
+	return "UNKNOWN";
 }
 
 static const char *path_type_to_str(enum path_type t)
@@ -618,6 +570,7 @@ int main(int argc, char **argv)
 
 	ctx = &_ctx;
 	memset(ctx, 0, sizeof(*ctx));
+	set_chip_gen(p8_chip_units);
 
 	if (is_fsp()) {
 		fprintf(stderr, "This is the OpenPower gard tool which does "
diff --git a/external/gard/gard.h b/external/gard/gard.h
index 26997ca..9c814a7 100644
--- a/external/gard/gard.h
+++ b/external/gard/gard.h
@@ -20,46 +20,7 @@
 #define PATH_TYPE_SHIFT 4
 #define PATH_ELEMENTS_MASK (0x0F)
 
-
-enum target_type {
-	TYPE_NA			= 0x00000000,
-	TYPE_SYS		= 0x00000001,
-	TYPE_NODE		= 0x00000002,
-	TYPE_DIMM		= 0x00000003,
-	TYPE_MEMBUF		= 0x00000004,
-	TYPE_PROC		= 0x00000005,
-	TYPE_EX			= 0x00000006,
-	TYPE_CORE		= 0x00000007,
-	TYPE_L2			= 0x00000008,
-	TYPE_L3			= 0x00000009,
-	TYPE_L4			= 0x0000000A,
-	TYPE_MCS		= 0x0000000B,
-	TYPE_MBA		= 0x0000000D,
-	TYPE_XBUS		= 0x0000000E,
-	TYPE_ABUS		= 0x0000000F,
-	TYPE_PCI		= 0x00000010,
-	TYPE_DPSS		= 0x00000011,
-	TYPE_APSS		= 0x00000012,
-	TYPE_OCC		= 0x00000013,
-	TYPE_PSI		= 0x00000014,
-	TYPE_FSP		= 0x00000015,
-	TYPE_PNOR		= 0x00000016,
-	TYPE_OSC		= 0x00000017,
-	TYPE_TODCLK		= 0x00000018,
-	TYPE_CONTROL_NODE	= 0x00000019,
-	TYPE_OSCREFCLK		= 0x0000001A,
-	TYPE_OSCPCICLK		= 0x0000001B,
-	TYPE_REFCLKENDPT	= 0x0000001C,
-	TYPE_PCICLKENDPT	= 0x0000001D,
-	TYPE_NX			= 0x0000001E,
-	TYPE_PORE		= 0x0000001F,
-	TYPE_PCIESWITCH		= 0x00000020,
-	TYPE_CAPP		= 0x00000021,
-	TYPE_FSI		= 0x00000022,
-	TYPE_TEST_FAIL		= 0x00000023,
-	TYPE_LAST_IN_RANGE	= 0x00000024,
-};
-
+/* see src/include/usr/targeting/common/entitypath.H */
 enum path_type {
 	PATH_NA			= 0x00,
 	PATH_AFFINITY		= 0x01,
@@ -81,15 +42,24 @@ struct entity_path {
 
 } __attribute__((packed));
 
-
-/* defined by hostboot */
+/* From hostboot: src/include/usr/hwas/common/deconfigGard.H:GardRecord */
 struct gard_record {
 	uint32_t		record_id;
 	struct entity_path	target_id;
-	uint8_t			pad0[3];
+	uint8_t			pad0[3]; /* compiler dependent padding */
 	uint32_t		errlog_eid;
 	uint8_t			error_type;
 	uint8_t			resource_recovery;
 	uint8_t			pad1[6];
 } __attribute__((packed));
 
+#define MAX_PATH_SIZE 420
+
+struct chip_unit_desc {
+	int type;
+	const char *desc;
+};
+
+extern const struct chip_unit_desc *chip_units;
+extern const struct chip_unit_desc p8_chip_units[];
+extern const struct chip_unit_desc p9_chip_units[];
diff --git a/external/gard/rules.mk b/external/gard/rules.mk
index a7b967a..a0bcfdc 100644
--- a/external/gard/rules.mk
+++ b/external/gard/rules.mk
@@ -1,7 +1,7 @@
 .DEFAULT_GOAL := all
 
 override CFLAGS += -O2 -Wall -Werror -I.
-OBJS      = version.o gard.o
+OBJS      = version.o gard.o units.o
 LIBFLASH_FILES    := libflash.c libffs.c ecc.c blocklevel.c file.c
 LIBFLASH_OBJS     := $(addprefix libflash-, $(LIBFLASH_FILES:.c=.o))
 LIBFLASH_SRC      := $(addprefix libflash/,$(LIBFLASH_FILES))
diff --git a/external/gard/test/results/01-show_1.out b/external/gard/test/results/01-show_1.out
index be2d3a5..e48d89b 100644
--- a/external/gard/test/results/01-show_1.out
+++ b/external/gard/test/results/01-show_1.out
@@ -3,6 +3,6 @@ Record ID:    0x00000001
 Error ID:     0x90000015
 Error Type:         0xe6
 Path Type: physical
->System, Instance #0
+>Sys, Instance #0
  >Node, Instance #0
-  >Processor, Instance #0
+  >Proc, Instance #0
diff --git a/external/gard/units.c b/external/gard/units.c
new file mode 100644
index 0000000..554d85c
--- /dev/null
+++ b/external/gard/units.c
@@ -0,0 +1,143 @@
+#include "gard.h"
+
+/*
+ * Each chip has a set of "units" that are detailed by the System MRW. Granted
+ * they're pretty much fixed for a given chip generation so hardcoding them here
+ * isn't a big deal.
+ *
+ * These tables we generated from obj/genfiles/errl/errludtarget.H. Which is
+ * generated as a part of the hostboot build process. Yeah that's about as
+ * dumb as it sounds, but whatever.
+ */
+
+
+/*
+ * Notes:
+ *
+ * When formatting these as strings we print them into a buffer of MAX_PATH_SIZE
+ * Given there is a max path length of ten units MAX_PATH_SIZE might need a
+ * bump is we start using very detailed unit description strings.
+ */
+
+const struct chip_unit_desc p8_chip_units[] = {
+	{0x00, "NA"},
+	{0x01, "Sys"},
+	{0x02, "Node"},
+	{0x03, "DIMM"},
+	{0x04, "Membuf"},
+	{0x05, "Proc"},
+	{0x06, "EX"},
+	{0x07, "Core"},
+	{0x08, "L2"},
+	{0x09, "L3"},
+	{0x0A, "L4"},
+	{0x0B, "MCS"},
+	{0x0D, "MBA"},
+	{0x0E, "XBUS"},
+	{0x0F, "ABUS"},
+	{0x10, "PCI"},
+	{0x11, "DPSS"},
+	{0x12, "APSS"},
+	{0x13, "OCC"},
+	{0x14, "PSI"},
+	{0x15, "FSP"},
+	{0x16, "PNOR"},
+	{0x17, "OSC"},
+	{0x18, "TODCLK"},
+	{0x19, "CONTROL_NODE"},
+	{0x1A, "OSCREFCLK"},
+	{0x1B, "OSCPCICLK"},
+	{0x1C, "REFCLKENDPT"},
+	{0x1D, "PCICLKENDPT"},
+	{0x1E, "NX"},
+	{0x1F, "PORE"},
+	{0x20, "PCIESWITCH"},
+	{0x21, "CAPP"},
+	{0x22, "FSI"},
+	{0x23, "TPM"},
+	{0x24, "SP"},
+	{0x25, "UART"},
+	{0x26, "PS"},
+	{0x27, "FAN"},
+	{0x28, "VRM"},
+	{0x29, "USB"},
+	{0x2A, "ETH"},
+	{0x2B, "PANEL"},
+	{0x2C, "TEST_FAIL"},
+	{0x2D, "LAST_IN_RANGE"}
+};
+
+const struct chip_unit_desc p9_chip_units[] = {
+	{0x00, "NA"},
+	{0x01, "Sys"},
+	{0x02, "Node"},
+	{0x03, "DIMM"},
+	{0x04, "Membuf"},
+	{0x05, "Proc"},
+	{0x06, "EX"},
+	{0x07, "Core"},
+	{0x08, "L2"},
+	{0x09, "L3"},
+	{0x0A, "L4"},
+	{0x0B, "MCS"},
+	/* a hole! */
+	{0x0D, "MBA"},
+	{0x0E, "XBUS"},
+	{0x0F, "ABUS"},
+	{0x10, "PCI"},
+	{0x11, "DPSS"},
+	{0x12, "APSS"},
+	{0x13, "OCC"},
+	{0x14, "PSI"},
+	{0x15, "FSP"},
+	{0x16, "PNOR"},
+	{0x17, "OSC"},
+	{0x18, "TODCLK"},
+	{0x19, "CONTROL_NODE"},
+	{0x1A, "OSCREFCLK"},
+	{0x1B, "OSCPCICLK"},
+	{0x1C, "REFCLKENDPT"},
+	{0x1D, "PCICLKENDPT"},
+	{0x1E, "NX"},
+	{0x1F, "PORE"},
+	{0x20, "PCIESWITCH"},
+	{0x21, "CAPP"},
+	{0x22, "FSI"},
+	{0x23, "EQ"},
+	{0x24, "MCA"},
+	{0x25, "MCBIST"},
+	{0x26, "MI"},
+	{0x27, "DMI"},
+	{0x28, "OBUS"},
+	{0x2A, "SBE"},
+	{0x2B, "PPE"},
+	{0x2C, "PERV"},
+	{0x2D, "PEC"},
+	{0x2E, "PHB"},
+	{0x2F, "SYSREFCLKENDPT"},
+	{0x30, "MFREFCLKENDPT"},
+	{0x31, "TPM"},
+	{0x32, "SP"},
+	{0x33, "UART"},
+	{0x34, "PS"},
+	{0x35, "FAN"},
+	{0x36, "VRM"},
+	{0x37, "USB"},
+	{0x38, "ETH"},
+	{0x39, "PANEL"},
+	{0x3A, "BMC"},
+	{0x3B, "FLASH"},
+	{0x3C, "SEEPROM"},
+	{0x3D, "TMP"},
+	{0x3E, "GPIO_EXPANDER"},
+	{0x3F, "POWER_SEQUENCER"},
+	{0x40, "RTC"},
+	{0x41, "FANCTLR"},
+	{0x42, "OBUS_BRICK"},
+	{0x43, "NPU"},
+	{0x44, "MC"},
+	{0x45, "TEST_FAIL"},
+	{0x46, "MFREFCLK"},
+	{0x47, "LAST_IN_RANGE"},
+};
+