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drivers: loapic: add device tree support for loapic

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As per #26393, Local APIC is using Kconfig based option for
the base address. This patch adds DTS binding support in the driver,
just like its conunter part I/O APIC.

Signed-off-by: Umar Nisar <umar.nisar@intel.com>
This commit is contained in:
Umar Nisar 2023-07-06 22:27:04 +02:00 • committed by Carles Cufí
commit 31a6594212
14 changed files with 101 additions and 37 deletions
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21
drivers/interrupt_controller/intc_loapic.c
View file

@ -3,6 +3,9 @@
* SPDX-License-Identifier: Apache-2.0
*/
#define DT_DRV_COMPAT intel_loapic
/*
* driver for x86 CPU local APIC (as an interrupt controller)
*/
@ -59,18 +62,15 @@
#define LOAPIC_SPURIOUS_VECTOR_ID CONFIG_LOAPIC_SPURIOUS_VECTOR_ID
#endif
#define LOPIC_SSPND_BITS_PER_IRQ 1 /* Just the one for enable disable*/
#define LOPIC_SUSPEND_BITS_REQD (ROUND_UP((LOAPIC_IRQ_COUNT * LOPIC_SSPND_BITS_PER_IRQ), 32))
#define LOAPIC_SSPND_BITS_PER_IRQ 1 /* Just the one for enable disable*/
#define LOAPIC_SUSPEND_BITS_REQD (ROUND_UP((LOAPIC_IRQ_COUNT * LOAPIC_SSPND_BITS_PER_IRQ), 32))
#ifdef CONFIG_PM_DEVICE
#include <zephyr/pm/device.h>
__pinned_bss
uint32_t loapic_suspend_buf[LOPIC_SUSPEND_BITS_REQD / 32] = {0};
uint32_t loapic_suspend_buf[LOAPIC_SUSPEND_BITS_REQD / 32] = {0};
#endif
#ifdef DEVICE_MMIO_IS_IN_RAM
__pinned_bss
mm_reg_t z_loapic_regs;
#endif
DEVICE_MMIO_TOPLEVEL(LOAPIC_REGS_STR, DT_DRV_INST(0));
__pinned_func
void send_eoi(void)
@ -87,11 +87,8 @@ __pinned_func
void z_loapic_enable(unsigned char cpu_number)
{
int32_t loApicMaxLvt; /* local APIC Max LVT */
DEVICE_MMIO_TOPLEVEL_MAP(LOAPIC_REGS_STR, K_MEM_CACHE_NONE);
#ifdef DEVICE_MMIO_IS_IN_RAM
device_map(&z_loapic_regs, CONFIG_LOAPIC_BASE_ADDRESS, 0x1000,
K_MEM_CACHE_NONE);
#endif /* DEVICE_MMIO_IS_IN_RAM */
#ifndef CONFIG_X2APIC
/*
* in xAPIC and flat model, bits 24-31 in LDR (Logical APIC ID) are
@ -340,7 +337,7 @@ static int loapic_suspend(const struct device *port)
ARG_UNUSED(port);
(void)memset(loapic_suspend_buf, 0, (LOPIC_SUSPEND_BITS_REQD >> 3));
(void)memset(loapic_suspend_buf, 0, (LOAPIC_SUSPEND_BITS_REQD >> 3));
for (loapic_irq = 0; loapic_irq < LOAPIC_IRQ_COUNT; loapic_irq++) {