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hw/arm/musicpal: Only use qdev_get_gpio_in() when necessary 

We don't need to fill the full pic[] array if we only use
few of the interrupt lines. Directly call qdev_get_gpio_in()
when necessary.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20201107193403.436146-6-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2020-11-07 20:34:03 +01:00 committed by Peter Maydell
parent 498661dd22
commit 44cbf34975
1 changed files with 13 additions and 12 deletions
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25
hw/arm/musicpal.c
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@ -1587,8 +1587,8 @@ static struct arm_boot_info musicpal_binfo = {
static void musicpal_init(MachineState *machine)
{
ARMCPU *cpu;
qemu_irq pic[32];
DeviceState *dev;
DeviceState *pic;
DeviceState *uart_orgate;
DeviceState *i2c_dev;
DeviceState *lcd_dev;
@ -1619,20 +1619,20 @@ static void musicpal_init(MachineState *machine)
&error_fatal);
memory_region_add_subregion(address_space_mem, MP_SRAM_BASE, sram);
dev = sysbus_create_simple(TYPE_MV88W8618_PIC, MP_PIC_BASE,
pic = sysbus_create_simple(TYPE_MV88W8618_PIC, MP_PIC_BASE,
qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ));
for (i = 0; i < 32; i++) {
pic[i] = qdev_get_gpio_in(dev, i);
}
sysbus_create_varargs(TYPE_MV88W8618_PIT, MP_PIT_BASE, pic[MP_TIMER1_IRQ],
pic[MP_TIMER2_IRQ], pic[MP_TIMER3_IRQ],
pic[MP_TIMER4_IRQ], NULL);
sysbus_create_varargs(TYPE_MV88W8618_PIT, MP_PIT_BASE,
qdev_get_gpio_in(pic, MP_TIMER1_IRQ),
qdev_get_gpio_in(pic, MP_TIMER2_IRQ),
qdev_get_gpio_in(pic, MP_TIMER3_IRQ),
qdev_get_gpio_in(pic, MP_TIMER4_IRQ), NULL);
/* Logically OR both UART IRQs together */
uart_orgate = DEVICE(object_new(TYPE_OR_IRQ));
object_property_set_int(OBJECT(uart_orgate), "num-lines", 2, &error_fatal);
qdev_realize_and_unref(uart_orgate, NULL, &error_fatal);
qdev_connect_gpio_out(DEVICE(uart_orgate), 0, pic[MP_UART_SHARED_IRQ]);
qdev_connect_gpio_out(DEVICE(uart_orgate), 0,
qdev_get_gpio_in(pic, MP_UART_SHARED_IRQ));
serial_mm_init(address_space_mem, MP_UART1_BASE, 2,
qdev_get_gpio_in(uart_orgate, 0),
@ -1674,14 +1674,15 @@ static void musicpal_init(MachineState *machine)
OBJECT(get_system_memory()), &error_fatal);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, MP_ETH_BASE);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[MP_ETH_IRQ]);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
qdev_get_gpio_in(pic, MP_ETH_IRQ));
sysbus_create_simple("mv88w8618_wlan", MP_WLAN_BASE, NULL);
sysbus_create_simple(TYPE_MUSICPAL_MISC, MP_MISC_BASE, NULL);
dev = sysbus_create_simple(TYPE_MUSICPAL_GPIO, MP_GPIO_BASE,
pic[MP_GPIO_IRQ]);
qdev_get_gpio_in(pic, MP_GPIO_IRQ));
i2c_dev = sysbus_create_simple("gpio_i2c", -1, NULL);
i2c = (I2CBus *)qdev_get_child_bus(i2c_dev, "i2c");
@ -1713,7 +1714,7 @@ static void musicpal_init(MachineState *machine)
NULL);
sysbus_realize_and_unref(s, &error_fatal);
sysbus_mmio_map(s, 0, MP_AUDIO_BASE);
sysbus_connect_irq(s, 0, pic[MP_AUDIO_IRQ]);
sysbus_connect_irq(s, 0, qdev_get_gpio_in(pic, MP_AUDIO_IRQ));
musicpal_binfo.ram_size = MP_RAM_DEFAULT_SIZE;
arm_load_kernel(cpu, machine, &musicpal_binfo);