diff options
| author | Jeenu Viswambharan <jeenu.viswambharan@arm.com> | 2017-09-22 08:32:09 +0100 |
|---|---|---|
| committer | Jeenu Viswambharan <jeenu.viswambharan@arm.com> | 2017-10-16 16:50:01 +0100 |
| commit | eb68ea9b10c190c237216dee92166f9e7b2ce3d4 (patch) | |
| tree | a33f06ca92514ec2ccfd96b1f3b8449dd0244fc5 /drivers | |
| parent | 8ac544e44b9747c1c59b42e4708607f2e8077c6f (diff) | |
GIC: Add API to get running priority
Document the API in separate platform interrupt controller API document.
Change-Id: If18f208e10a8a243f5c59d226fcf48e985941949
Co-authored-by: Yousuf A <yousuf.sait@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/arm/gic/v2/gicv2_main.c | 12 | ||||
| -rw-r--r-- | drivers/arm/gic/v2/gicv2_private.h | 7 | ||||
| -rw-r--r-- | drivers/arm/gic/v3/gicv3_main.c | 9 |
3 files changed, 27 insertions, 1 deletions
diff --git a/drivers/arm/gic/v2/gicv2_main.c b/drivers/arm/gic/v2/gicv2_main.c index deac927c..7759a551 100644 --- a/drivers/arm/gic/v2/gicv2_main.c +++ b/drivers/arm/gic/v2/gicv2_main.c @@ -240,3 +240,15 @@ unsigned int gicv2_get_interrupt_group(unsigned int id) return gicd_get_igroupr(driver_data->gicd_base, id); } + +/******************************************************************************* + * This function returns the priority of the interrupt the processor is + * currently servicing. + ******************************************************************************/ +unsigned int gicv2_get_running_priority(void) +{ + assert(driver_data); + assert(driver_data->gicc_base); + + return gicc_read_rpr(driver_data->gicc_base); +} diff --git a/drivers/arm/gic/v2/gicv2_private.h b/drivers/arm/gic/v2/gicv2_private.h index 91ab43a2..7703cbe5 100644 --- a/drivers/arm/gic/v2/gicv2_private.h +++ b/drivers/arm/gic/v2/gicv2_private.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -80,6 +80,11 @@ static inline unsigned int gicc_read_iidr(uintptr_t base) return mmio_read_32(base + GICC_IIDR); } +static inline unsigned int gicc_read_rpr(uintptr_t base) +{ + return mmio_read_32(base + GICC_RPR); +} + /******************************************************************************* * GIC CPU interface accessors for writing entire registers ******************************************************************************/ diff --git a/drivers/arm/gic/v3/gicv3_main.c b/drivers/arm/gic/v3/gicv3_main.c index 1a018d80..7e757430 100644 --- a/drivers/arm/gic/v3/gicv3_main.c +++ b/drivers/arm/gic/v3/gicv3_main.c @@ -769,3 +769,12 @@ void gicv3_distif_init_restore(const gicv3_dist_ctx_t * const dist_ctx) gicd_wait_for_pending_write(gicd_base); } + +/******************************************************************************* + * This function gets the priority of the interrupt the processor is currently + * servicing. + ******************************************************************************/ +unsigned int gicv3_get_running_priority(void) +{ + return read_icc_rpr_el1(); +} |