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hw/sparc: Make grlib-irqmp device handle its own inbound IRQ lines

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Currently the GRLIB_IRQMP device is used in one place (the leon3 board),
but instead of the device providing inbound gpio lines for the board
to wire up, the board code itself calls qemu_allocate_irqs() with
the handler function being a set_irq function defined in the code
for the device.

Refactor this into the standard setup of a device having input
gpio lines.

This fixes a trivial Coverity memory leak report (the leon3
board code leaks the IRQ array returned from qemu_allocate_irqs()).

Fixes: Coverity CID 1421922
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20201212144134.29594-2-peter.maydell@linaro.org>
Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This commit is contained in:
Peter Maydell 2020-12-12 14:41:33 +00:00 committed by Mark Cave-Ayland
parent 62a9b228b5
commit 3391953660
3 changed files with 13 additions and 15 deletions
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5
hw/intc/grlib_irqmp.c
View File

@ -51,6 +51,8 @@
#define FORCE_OFFSET 0x80
#define EXTENDED_OFFSET 0xC0
#define MAX_PILS 16
OBJECT_DECLARE_SIMPLE_TYPE(IRQMP, GRLIB_IRQMP)
typedef struct IRQMPState IRQMPState;
@ -126,7 +128,7 @@ void grlib_irqmp_ack(DeviceState *dev, int intno)
grlib_irqmp_ack_mask(state, mask);
}
void grlib_irqmp_set_irq(void *opaque, int irq, int level)
static void grlib_irqmp_set_irq(void *opaque, int irq, int level)
{
IRQMP *irqmp = GRLIB_IRQMP(opaque);
IRQMPState *s;
@ -328,6 +330,7 @@ static void grlib_irqmp_init(Object *obj)
IRQMP *irqmp = GRLIB_IRQMP(obj);
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
qdev_init_gpio_in(DEVICE(obj), grlib_irqmp_set_irq, MAX_PILS);
qdev_init_gpio_out_named(DEVICE(obj), &irqmp->irq, "grlib-irq", 1);
memory_region_init_io(&irqmp->iomem, obj, &grlib_irqmp_ops, irqmp,
"irqmp", IRQMP_REG_SIZE);

21
hw/sparc/leon3.c
View File

@ -52,8 +52,6 @@
#define LEON3_PROM_OFFSET (0x00000000)
#define LEON3_RAM_OFFSET (0x40000000)
#define MAX_PILS 16
#define LEON3_UART_OFFSET (0x80000100)
#define LEON3_UART_IRQ (3)
@ -194,11 +192,10 @@ static void leon3_generic_hw_init(MachineState *machine)
MemoryRegion *prom = g_new(MemoryRegion, 1);
int ret;
char *filename;
qemu_irq *cpu_irqs = NULL;
int bios_size;
int prom_size;
ResetData *reset_info;
DeviceState *dev;
DeviceState *dev, *irqmpdev;
int i;
AHBPnp *ahb_pnp;
APBPnp *apb_pnp;
@ -230,16 +227,15 @@ static void leon3_generic_hw_init(MachineState *machine)
GRLIB_AHB_SLAVE, GRLIB_AHBMEM_AREA);
/* Allocate IRQ manager */
dev = qdev_new(TYPE_GRLIB_IRQMP);
irqmpdev = qdev_new(TYPE_GRLIB_IRQMP);
qdev_init_gpio_in_named_with_opaque(DEVICE(cpu), leon3_set_pil_in,
env, "pil", 1);
qdev_connect_gpio_out_named(dev, "grlib-irq", 0,
qdev_connect_gpio_out_named(irqmpdev, "grlib-irq", 0,
qdev_get_gpio_in_named(DEVICE(cpu), "pil", 0));
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, LEON3_IRQMP_OFFSET);
env->irq_manager = dev;
sysbus_realize_and_unref(SYS_BUS_DEVICE(irqmpdev), &error_fatal);
sysbus_mmio_map(SYS_BUS_DEVICE(irqmpdev), 0, LEON3_IRQMP_OFFSET);
env->irq_manager = irqmpdev;
env->qemu_irq_ack = leon3_irq_manager;
cpu_irqs = qemu_allocate_irqs(grlib_irqmp_set_irq, dev, MAX_PILS);
grlib_apb_pnp_add_entry(apb_pnp, LEON3_IRQMP_OFFSET, 0xFFF,
GRLIB_VENDOR_GAISLER, GRLIB_IRQMP_DEV,
2, 0, GRLIB_APBIO_AREA);
@ -330,7 +326,7 @@ static void leon3_generic_hw_init(MachineState *machine)
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, LEON3_TIMER_OFFSET);
for (i = 0; i < LEON3_TIMER_COUNT; i++) {
sysbus_connect_irq(SYS_BUS_DEVICE(dev), i,
cpu_irqs[LEON3_TIMER_IRQ + i]);
qdev_get_gpio_in(irqmpdev, LEON3_TIMER_IRQ + i));
}
grlib_apb_pnp_add_entry(apb_pnp, LEON3_TIMER_OFFSET, 0xFFF,
@ -342,7 +338,8 @@ static void leon3_generic_hw_init(MachineState *machine)
qdev_prop_set_chr(dev, "chrdev", serial_hd(0));
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, LEON3_UART_OFFSET);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, cpu_irqs[LEON3_UART_IRQ]);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
qdev_get_gpio_in(irqmpdev, LEON3_UART_IRQ));
grlib_apb_pnp_add_entry(apb_pnp, LEON3_UART_OFFSET, 0xFFF,
GRLIB_VENDOR_GAISLER, GRLIB_APBUART_DEV, 1,
LEON3_UART_IRQ, GRLIB_APBIO_AREA);

2
include/hw/sparc/grlib.h
View File

@ -36,8 +36,6 @@
typedef void (*set_pil_in_fn) (void *opaque, uint32_t pil_in);
void grlib_irqmp_set_irq(void *opaque, int irq, int level);
void grlib_irqmp_ack(DeviceState *dev, int intno);
/* GPTimer */