[Skiboot] [PATCH v2 2/6] opal: Get chip location code
Mahesh J Salgaonkar
mahesh at linux.vnet.ibm.com
Wed Dec 13 16:24:10 AEDT 2017
From: Mahesh Salgaonkar <mahesh at linux.vnet.ibm.com>
and store it under proc_chip for quick reference during HMI handling
code.
Signed-off-by: Mahesh Salgaonkar <mahesh at linux.vnet.ibm.com>
---
core/chip.c | 10 ++++++++++
include/chip.h | 15 +++++++++++++++
2 files changed, 25 insertions(+)
diff --git a/core/chip.c b/core/chip.c
index d2ff3f4..6526325 100644
--- a/core/chip.c
+++ b/core/chip.c
@@ -76,6 +76,7 @@ static void init_chip(struct dt_node *dn)
{
struct proc_chip *chip;
uint32_t id;
+ const char *lc = NULL;
id = dt_get_chip_id(dn);
assert(id < MAX_CHIPS);
@@ -97,6 +98,15 @@ static void init_chip(struct dt_node *dn)
list_head_init(&chip->i2cms);
+ /* Update the location code for this chip. */
+ if (dt_has_node_property(dn, "ibm,loc-code", NULL))
+ lc = dt_prop_get(dn, "ibm,loc-code");
+ else if (dt_has_node_property(dn, "ibm,slot-location-code", NULL))
+ lc = dt_prop_get(dn, "ibm,slot-location-code");
+
+ if (lc)
+ chip->loc_code = strdup(lc);
+
prlog(PR_INFO, "CHIP: Initialised chip %d from %s\n", id, dn->name);
chips[id] = chip;
}
diff --git a/include/chip.h b/include/chip.h
index 566edc5..43b5ea5 100644
--- a/include/chip.h
+++ b/include/chip.h
@@ -215,6 +215,9 @@ struct proc_chip {
struct xive *xive;
struct vas *vas;
+
+ /* location code of this chip */
+ const uint8_t *loc_code;
};
extern uint32_t pir_to_chip_id(uint32_t pir);
@@ -241,5 +244,17 @@ static inline int nr_chips(void)
return nr_chips;
}
+/* helper to get location code of a chip */
+static inline const char *chip_loc_code(uint32_t chip_id)
+{
+ struct proc_chip *chip;
+
+ chip = get_chip(chip_id);
+ if (!chip)
+ return NULL;
+
+ return chip->loc_code;
+}
+
#endif /* __CHIP_H */
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