diff options
| author | Sunil V L <sunilvl@ventanamicro.com> | 2024-08-12 06:29:27 +0530 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-08-27 15:48:36 +0200 |
| commit | fbe826b1c10699a70b81a441fe47b817d1019f37 (patch) | |
| tree | 49f907e1bbefb94b85415c18a636e5a5784b9807 /include/linux/irqchip | |
| parent | aa143df8fd754e80aa801f7805b50bd496ddb2aa (diff) | |
irqchip/riscv-imsic: Add ACPI support
RISC-V IMSIC interrupt controller provides IPI and MSI support.
Currently, DT based drivers setup the IPI feature early during boot but
defer setting up the MSI functionality. However, in ACPI systems, PCI
subsystem is probed early and assume MSI controller is already setup.
Hence, both IPI and MSI features need to be initialized early itself.
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Tested-by: Björn Töpel <bjorn@rivosinc.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://patch.msgid.link/20240812005929.113499-16-sunilvl@ventanamicro.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/irqchip')
| -rw-r--r-- | include/linux/irqchip/riscv-imsic.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/irqchip/riscv-imsic.h b/include/linux/irqchip/riscv-imsic.h index faf0b800b1b0..7494952c5518 100644 --- a/include/linux/irqchip/riscv-imsic.h +++ b/include/linux/irqchip/riscv-imsic.h @@ -8,6 +8,8 @@ #include <linux/types.h> #include <linux/bitops.h> +#include <linux/device.h> +#include <linux/fwnode.h> #include <asm/csr.h> #define IMSIC_MMIO_PAGE_SHIFT 12 @@ -84,4 +86,11 @@ static inline const struct imsic_global_config *imsic_get_global_config(void) #endif +#ifdef CONFIG_ACPI +int imsic_platform_acpi_probe(struct fwnode_handle *fwnode); +struct fwnode_handle *imsic_acpi_get_fwnode(struct device *dev); +#else +static inline struct fwnode_handle *imsic_acpi_get_fwnode(struct device *dev) { return NULL; } +#endif + #endif |