diff options
Diffstat (limited to 'drivers/arm/gic/v2/gicv2_main.c')
| -rw-r--r-- | drivers/arm/gic/v2/gicv2_main.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/arm/gic/v2/gicv2_main.c b/drivers/arm/gic/v2/gicv2_main.c index 7759a551..28266807 100644 --- a/drivers/arm/gic/v2/gicv2_main.c +++ b/drivers/arm/gic/v2/gicv2_main.c @@ -252,3 +252,26 @@ unsigned int gicv2_get_running_priority(void) return gicc_read_rpr(driver_data->gicc_base); } + +/******************************************************************************* + * This function sets the GICv2 target mask pattern for the current PE. The PE + * target mask is used to translate linear PE index (returned by platform core + * position) to a bit mask used when targeting interrupts to a PE, viz. when + * raising SGIs and routing SPIs. + ******************************************************************************/ +void gicv2_set_pe_target_mask(unsigned int proc_num) +{ + assert(driver_data); + assert(driver_data->gicd_base); + assert(driver_data->target_masks); + assert(proc_num < GICV2_MAX_TARGET_PE); + assert(proc_num < driver_data->target_masks_num); + + /* Return if the target mask is already populated */ + if (driver_data->target_masks[proc_num]) + return; + + /* Read target register corresponding to this CPU */ + driver_data->target_masks[proc_num] = + gicv2_get_cpuif_id(driver_data->gicd_base); +} |