[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [kvm-unit-tests RFC 05/15] arm/arm64: GICv3: add cpu count
From: |
Eric Auger |
Subject: |
[Qemu-devel] [kvm-unit-tests RFC 05/15] arm/arm64: GICv3: add cpu count |
Date: |
Mon, 5 Dec 2016 22:46:36 +0100 |
Add a new cpu_count field in gicv3_data indicating the
number of redistributors. This will be useful for enumeration
of their resources such as LPI pending tables.
Signed-off-by: Eric Auger <address@hidden>
---
lib/arm/asm/gic-v3.h | 1 +
lib/arm/gic-v3.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/lib/arm/asm/gic-v3.h b/lib/arm/asm/gic-v3.h
index ed330af..039b7c2 100644
--- a/lib/arm/asm/gic-v3.h
+++ b/lib/arm/asm/gic-v3.h
@@ -58,6 +58,7 @@ struct gicv3_data {
void *dist_base;
void *redist_base[NR_CPUS];
unsigned int irq_nr;
+ unsigned int cpu_count;
};
extern struct gicv3_data gicv3_data;
diff --git a/lib/arm/gic-v3.c b/lib/arm/gic-v3.c
index 6246221..9921f4d 100644
--- a/lib/arm/gic-v3.c
+++ b/lib/arm/gic-v3.c
@@ -12,12 +12,14 @@ void gicv3_set_redist_base(size_t stride)
void *ptr = gicv3_data.redist_base[0];
u64 typer;
+ gicv3_data.cpu_count = 0;
do {
typer = gicv3_read_typer(ptr + GICR_TYPER);
if ((typer >> 32) == aff) {
gicv3_redist_base() = ptr;
return;
}
+ gicv3_data.cpu_count++;
ptr += stride; /* skip RD_base, SGI_base, etc. */
} while (!(typer & GICR_TYPER_LAST));
--
2.5.5
- [Qemu-devel] [kvm-unit-tests RFC 00/15] arm/arm64: add ITS framework, Eric Auger, 2016/12/05
- [Qemu-devel] [kvm-unit-tests RFC 06/15] arm/arm64: ITS: Set the LPI config and pending tables, Eric Auger, 2016/12/05
- [Qemu-devel] [kvm-unit-tests RFC 07/15] arm/arm64: ITS: Init the command queue, Eric Auger, 2016/12/05
- [Qemu-devel] [kvm-unit-tests RFC 10/15] arm/arm64: ITS: its_enable_defaults, Eric Auger, 2016/12/05
- [Qemu-devel] [kvm-unit-tests RFC 09/15] arm/arm64: ITS: Parse the typer register, Eric Auger, 2016/12/05
- [Qemu-devel] [kvm-unit-tests RFC 08/15] arm/arm64: ITS: enable LPIs at re-distributor level, Eric Auger, 2016/12/05
- [Qemu-devel] [kvm-unit-tests RFC 11/15] arm/arm64: ITS: create device, Eric Auger, 2016/12/05
- [Qemu-devel] [kvm-unit-tests RFC 12/15] arm/arm64: ITS: create collection, Eric Auger, 2016/12/05