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hw/riscv: virt: Make few IMSIC macros and functions public

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Some macros and static function related to IMSIC are defined in virt.c.
They are required in virt-acpi-build.c. So, make them public.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20231218150247.466427-5-sunilvl@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Sunil V L 2023-12-18 20:32:38 +05:30 • committed by Alistair Francis
parent 8199bf48ea
commit 68c8b403c7
2 changed files with 26 additions and 24 deletions
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25
include/hw/riscv/virt.h
View file

@ -23,6 +23,7 @@
#include "hw/riscv/riscv_hart.h"
#include "hw/sysbus.h"
#include "hw/block/flash.h"
#include "hw/intc/riscv_imsic.h"
#define VIRT_CPUS_MAX_BITS 9
#define VIRT_CPUS_MAX (1 << VIRT_CPUS_MAX_BITS)
@ -127,4 +128,28 @@ enum {
bool virt_is_acpi_enabled(RISCVVirtState *s);
void virt_acpi_setup(RISCVVirtState *vms);
uint32_t imsic_num_bits(uint32_t count);
/*
* The virt machine physical address space used by some of the devices
* namely ACLINT, PLIC, APLIC, and IMSIC depend on number of Sockets,
* number of CPUs, and number of IMSIC guest files.
*
* Various limits defined by VIRT_SOCKETS_MAX_BITS, VIRT_CPUS_MAX_BITS,
* and VIRT_IRQCHIP_MAX_GUESTS_BITS are tuned for maximum utilization
* of virt machine physical address space.
*/
#define VIRT_IMSIC_GROUP_MAX_SIZE (1U << IMSIC_MMIO_GROUP_MIN_SHIFT)
#if VIRT_IMSIC_GROUP_MAX_SIZE < \
IMSIC_GROUP_SIZE(VIRT_CPUS_MAX_BITS, VIRT_IRQCHIP_MAX_GUESTS_BITS)
#error "Can't accomodate single IMSIC group in address space"
#endif
#define VIRT_IMSIC_MAX_SIZE (VIRT_SOCKETS_MAX * \
VIRT_IMSIC_GROUP_MAX_SIZE)
#if 0x4000000 < VIRT_IMSIC_MAX_SIZE
#error "Can't accomodate all IMSIC groups in address space"
#endif
#endif