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arch: riscv64: smp: get msip base address from dts

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In most implements, the msip base address is 0x2000000. But the address
is not fixed in all boards.

Signed-off-by: Yang Jialong <yangjialong@vcore.com>
This commit is contained in:
Yang Jialong 2024-11-26 14:37:31 +08:00 • committed by Anas Nashif
commit 5a3f0b9506
2 changed files with 6 additions and 2 deletions
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6
arch/riscv/core/ipi_clint.c
View file

@ -9,7 +9,11 @@
#include <zephyr/kernel.h>
#define MSIP_BASE 0x2000000UL
#define CLINT_NODE DT_NODELABEL(clint)
#if !DT_NODE_EXISTS(CLINT_NODE)
#error "Label 'clint' is not defined in the devicetree."
#endif
#define MSIP_BASE DT_REG_ADDR_RAW(CLINT_NODE)
#define MSIP(hartid) ((volatile uint32_t *)MSIP_BASE)[hartid]
static atomic_val_t cpu_pending_ipi[CONFIG_MP_MAX_NUM_CPUS];

2
dts/riscv/qemu/virt-riscv.dtsi
View file

@ -181,7 +181,7 @@
#interrupt-cells = < 0x02 >;
};
clint@2000000 {
clint: clint@2000000 {
compatible = "sifive,clint0";
reg = <0x2000000 0x10000>;
interrupts-extended = <&hlic0 0x03 &hlic0 0x07