mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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041f777c93
Convert the SMP msm platforms to be using the gic_handle_irq function as their primary interrupt handler. Tested-by: David Brown <davidb@codeaurora.org> Acked-by: David Brown <davidb@codeaurora.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
116 lines
3.1 KiB
C
116 lines
3.1 KiB
C
/* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/irq.h>
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#include <linux/clkdev.h>
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#include <linux/memblock.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/hardware/gic.h>
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#include <asm/setup.h>
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#include <mach/board.h>
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#include <mach/msm_iomap.h>
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#include "devices.h"
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static void __init msm8960_fixup(struct tag *tag, char **cmdline,
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struct meminfo *mi)
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{
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for (; tag->hdr.size; tag = tag_next(tag))
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if (tag->hdr.tag == ATAG_MEM &&
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tag->u.mem.start == 0x40200000) {
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tag->u.mem.start = 0x40000000;
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tag->u.mem.size += SZ_2M;
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}
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}
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static void __init msm8960_reserve(void)
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{
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memblock_remove(0x40000000, SZ_2M);
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}
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static void __init msm8960_map_io(void)
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{
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msm_map_msm8960_io();
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}
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static void __init msm8960_init_irq(void)
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{
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unsigned int i;
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gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE,
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(void *)MSM_QGIC_CPU_BASE);
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/* Edge trigger PPIs except AVS_SVICINT and AVS_SVICINTSWDONE */
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writel(0xFFFFD7FF, MSM_QGIC_DIST_BASE + GIC_DIST_CONFIG + 4);
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if (machine_is_msm8960_rumi3())
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writel(0x0000FFFF, MSM_QGIC_DIST_BASE + GIC_DIST_ENABLE_SET);
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/* FIXME: Not installing AVS_SVICINT and AVS_SVICINTSWDONE yet
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* as they are configured as level, which does not play nice with
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* handle_percpu_irq.
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*/
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for (i = GIC_PPI_START; i < GIC_SPI_START; i++) {
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if (i != AVS_SVICINT && i != AVS_SVICINTSWDONE)
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irq_set_handler(i, handle_percpu_irq);
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}
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}
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static struct platform_device *sim_devices[] __initdata = {
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&msm8960_device_uart_gsbi2,
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};
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static struct platform_device *rumi3_devices[] __initdata = {
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&msm8960_device_uart_gsbi5,
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};
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static void __init msm8960_sim_init(void)
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{
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platform_add_devices(sim_devices, ARRAY_SIZE(sim_devices));
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}
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static void __init msm8960_rumi3_init(void)
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{
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platform_add_devices(rumi3_devices, ARRAY_SIZE(rumi3_devices));
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}
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MACHINE_START(MSM8960_SIM, "QCT MSM8960 SIMULATOR")
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.fixup = msm8960_fixup,
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.reserve = msm8960_reserve,
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.map_io = msm8960_map_io,
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.init_irq = msm8960_init_irq,
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.timer = &msm_timer,
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.handle_irq = gic_handle_irq,
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.init_machine = msm8960_sim_init,
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MACHINE_END
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MACHINE_START(MSM8960_RUMI3, "QCT MSM8960 RUMI3")
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.fixup = msm8960_fixup,
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.reserve = msm8960_reserve,
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.map_io = msm8960_map_io,
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.init_irq = msm8960_init_irq,
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.timer = &msm_timer,
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.handle_irq = gic_handle_irq,
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.init_machine = msm8960_rumi3_init,
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MACHINE_END
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