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[PATCH 5/5] hw/intc/arm_gicv3: Provide ich_num_aprs()
From: |
Peter Maydell |
Subject: |
[PATCH 5/5] hw/intc/arm_gicv3: Provide ich_num_aprs() |
Date: |
Fri, 6 May 2022 17:21:29 +0100 |
We previously open-coded the expression for the number of virtual APR
registers and the assertion that it was not going to cause us to
overflow the cs->ich_apr[] array. Factor this out into a new
ich_num_aprs() function, for consistency with the icc_num_aprs()
function we just added for the physical APR handling.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
hw/intc/arm_gicv3_cpuif.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/hw/intc/arm_gicv3_cpuif.c b/hw/intc/arm_gicv3_cpuif.c
index e277a807bd5..5418ad9bbc5 100644
--- a/hw/intc/arm_gicv3_cpuif.c
+++ b/hw/intc/arm_gicv3_cpuif.c
@@ -49,6 +49,14 @@ static inline int icv_min_vbpr(GICv3CPUState *cs)
return 7 - cs->vprebits;
}
+static inline int ich_num_aprs(GICv3CPUState *cs)
+{
+ /* Return the number of virtual APR registers (1, 2, or 4) */
+ int aprmax = 1 << (cs->vprebits - 5);
+ assert(aprmax <= ARRAY_SIZE(cs->ich_apr[0]));
+ return aprmax;
+}
+
/* Simple accessor functions for LR fields */
static uint32_t ich_lr_vintid(uint64_t lr)
{
@@ -145,11 +153,8 @@ static int ich_highest_active_virt_prio(GICv3CPUState *cs)
* in the ICH Active Priority Registers.
*/
int i;
- int aprmax = 1 << (cs->vprebits - 5);
- assert(aprmax <= ARRAY_SIZE(cs->ich_apr[0]));
-
- for (i = 0; i < aprmax; i++) {
+ for (i = 0; i < ich_num_aprs(cs); i++) {
uint32_t apr = cs->ich_apr[GICV3_G0][i] |
cs->ich_apr[GICV3_G1NS][i];
@@ -1333,11 +1338,8 @@ static int icv_drop_prio(GICv3CPUState *cs)
* 32 bits are actually relevant.
*/
int i;
- int aprmax = 1 << (cs->vprebits - 5);
- assert(aprmax <= ARRAY_SIZE(cs->ich_apr[0]));
-
- for (i = 0; i < aprmax; i++) {
+ for (i = 0; i < ich_num_aprs(cs); i++) {
uint64_t *papr0 = &cs->ich_apr[GICV3_G0][i];
uint64_t *papr1 = &cs->ich_apr[GICV3_G1NS][i];
int apr0count, apr1count;
--
2.25.1