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| author | Andre Przywara <andre.przywara@arm.com> | 2014-11-12 13:46:06 (GMT) |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2015-01-20 17:25:31 (GMT) |
| commit | 7e5802781c3e109558ddfd8b02155ad24d872ee7 (patch) | |
| tree | 0a8a126d4b380e41ab9f0bb4c2064563af6c7321 | |
| parent | a0675c25d6392c2197b796a60c4a2a0138c86355 (diff) | |
| download | linux-7e5802781c3e109558ddfd8b02155ad24d872ee7.tar.xz | |
arm64: GICv3: introduce symbolic names for GICv3 ICC_SGI1R_EL1 fields
The gic_send_sgi() function used hardcoded bit shift values to
generate the ICC_SGI1R_EL1 register value.
Replace this with symbolic names to allow reusing them later.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
| -rw-r--r-- | drivers/irqchip/irq-gic-v3.c | 14 | ||||
| -rw-r--r-- | include/linux/irqchip/arm-gic-v3.h | 12 |
2 files changed, 21 insertions, 5 deletions
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index 1a146cc..2ab290b 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -481,15 +481,19 @@ out: return tlist; } +#define MPIDR_TO_SGI_AFFINITY(cluster_id, level) \ + (MPIDR_AFFINITY_LEVEL(cluster_id, level) \ + << ICC_SGI1R_AFFINITY_## level ##_SHIFT) + static void gic_send_sgi(u64 cluster_id, u16 tlist, unsigned int irq) { u64 val; - val = (MPIDR_AFFINITY_LEVEL(cluster_id, 3) << 48 | - MPIDR_AFFINITY_LEVEL(cluster_id, 2) << 32 | - irq << 24 | - MPIDR_AFFINITY_LEVEL(cluster_id, 1) << 16 | - tlist); + val = (MPIDR_TO_SGI_AFFINITY(cluster_id, 3) | + MPIDR_TO_SGI_AFFINITY(cluster_id, 2) | + irq << ICC_SGI1R_SGI_ID_SHIFT | + MPIDR_TO_SGI_AFFINITY(cluster_id, 1) | + tlist << ICC_SGI1R_TARGET_LIST_SHIFT); pr_debug("CPU%d: ICC_SGI1R_EL1 %llx\n", smp_processor_id(), val); gic_write_sgi1r(val); diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h index 3fb4d85..800544b 100644 --- a/include/linux/irqchip/arm-gic-v3.h +++ b/include/linux/irqchip/arm-gic-v3.h @@ -280,6 +280,18 @@ #define ICC_SRE_EL2_SRE (1 << 0) #define ICC_SRE_EL2_ENABLE (1 << 3) +#define ICC_SGI1R_TARGET_LIST_SHIFT 0 +#define ICC_SGI1R_TARGET_LIST_MASK (0xffff << ICC_SGI1R_TARGET_LIST_SHIFT) +#define ICC_SGI1R_AFFINITY_1_SHIFT 16 +#define ICC_SGI1R_AFFINITY_1_MASK (0xff << ICC_SGI1R_AFFINITY_1_SHIFT) +#define ICC_SGI1R_SGI_ID_SHIFT 24 +#define ICC_SGI1R_SGI_ID_MASK (0xff << ICC_SGI1R_SGI_ID_SHIFT) +#define ICC_SGI1R_AFFINITY_2_SHIFT 32 +#define ICC_SGI1R_AFFINITY_2_MASK (0xffULL << ICC_SGI1R_AFFINITY_1_SHIFT) +#define ICC_SGI1R_IRQ_ROUTING_MODE_BIT 40 +#define ICC_SGI1R_AFFINITY_3_SHIFT 48 +#define ICC_SGI1R_AFFINITY_3_MASK (0xffULL << ICC_SGI1R_AFFINITY_1_SHIFT) + /* * System register definitions */ |