diff options
| -rw-r--r-- | hdata/spira.c | 47 | ||||
| -rw-r--r-- | hdata/spira.h | 7 |
2 files changed, 54 insertions, 0 deletions
diff --git a/hdata/spira.c b/hdata/spira.c index 592197e..428b3e0 100644 --- a/hdata/spira.c +++ b/hdata/spira.c @@ -14,6 +14,7 @@ * limitations under the License. */ +#include <inttypes.h> #include <device.h> #include "spira.h" #include <cpu.h> @@ -916,6 +917,51 @@ static void add_iplparams_platform_dump(const void *iplp, struct dt_node *node) } } +static void add_iplparams_features(const struct HDIF_common_hdr *iplp) +{ + const struct iplparams_feature *feature; + const struct HDIF_array_hdr *array; + struct dt_node *fw_features; + unsigned int count, i; + char name[65]; + + array = HDIF_get_iarray(iplp, IPLPARAMS_FEATURES, &count); + if (!array || !count) + return; + + opal_node = dt_new_check(dt_root, "ibm,opal"); + fw_features = dt_new(opal_node, "fw-features"); + if (!fw_features) + return; + + HDIF_iarray_for_each(array, i, feature) { + struct dt_node *n; + uint64_t flags; + + /* the name field isn't necessarily null terminated */ + strncpy(name, feature->name, sizeof(feature->name)); + flags = be64_to_cpu(feature->flags); + + prlog(PR_DEBUG, "IPLPARAMS: FW feature %s = %016"PRIx64"\n", + name, flags); + + /* get rid of tm-suspend-mode-enabled being disabled */ + if (strcmp(name, "tm-suspend-mode-enabled") == 0) + strcpy(name, "tm-suspend-mode"); + + n = dt_new(fw_features, name); + + /* + * This is a bit overkill, but we'll want seperate properties + * for each flag bit(s). + */ + if (flags & PPC_BIT(0)) + dt_add_property(n, "enabled", NULL, 0); + else + dt_add_property(n, "disabled", NULL, 0); + } +} + static void add_iplparams(void) { struct dt_node *iplp_node; @@ -936,6 +982,7 @@ static void add_iplparams(void) add_iplparams_ipl_params(ipl_parms, iplp_node); add_iplparams_serials(ipl_parms, iplp_node); add_iplparams_platform_dump(ipl_parms, iplp_node); + add_iplparams_features(ipl_parms); } /* Various structure contain a "proc_chip_id" which is an arbitrary diff --git a/hdata/spira.h b/hdata/spira.h index eabf7f9..7fdc2d0 100644 --- a/hdata/spira.h +++ b/hdata/spira.h @@ -380,6 +380,13 @@ struct iplparms_serial { #define PLPARMS_SERIAL_FLAGS_CALLHOME 0x8000 } __packed; +/* Idata index 9: FW features */ +#define IPLPARAMS_FEATURES 9 +struct iplparams_feature { + char name[64]; + __be64 flags; +} __packed; + /* * Chip TOD structure * |