diff options
Diffstat (limited to 'usr/src')
| -rw-r--r-- | usr/src/uts/i86pc/io/cpudrv/cpudrv_mach.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/usr/src/uts/i86pc/io/cpudrv/cpudrv_mach.c b/usr/src/uts/i86pc/io/cpudrv/cpudrv_mach.c index 9c8d16f21a..74275dc83a 100644 --- a/usr/src/uts/i86pc/io/cpudrv/cpudrv_mach.c +++ b/usr/src/uts/i86pc/io/cpudrv/cpudrv_mach.c @@ -19,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -319,19 +319,29 @@ cpudrv_pm_get_topspeed(void *ctx) cpudrv_mach_state_t *mach_state; cpu_acpi_handle_t handle; cpudrv_devstate_t *cpudsp; + cpudrv_pm_t *cpupm; dev_info_t *dip; int instance; int plat_level; + int max_level; dip = ctx; instance = ddi_get_instance(dip); cpudsp = ddi_get_soft_state(cpudrv_state, instance); ASSERT(cpudsp != NULL); + cpupm = &(cpudsp->cpudrv_pm); mach_state = cpudsp->mach_state; handle = mach_state->acpi_handle; cpu_acpi_cache_ppc(handle); plat_level = CPU_ACPI_PPC(handle); + max_level = cpupm->num_spd - 1; + if ((plat_level < 0) || (plat_level > max_level)) { + cmn_err(CE_NOTE, "!cpudrv_pm_get_topspeed: instance %d: " + "_PPC out of range %d", instance, plat_level); + + plat_level = max_level; + } return (plat_level); } |