4f3d8b67ad
Convert these calls too: * Disable of remapping hardware * Reenable of remapping hardware * Enable fault handling With that all of arch/x86/kernel/apic/apic.c is converted to use the generic intr-remapping interface. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Acked-by: Yinghai Lu <yinghai@kernel.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
101 lines
1.8 KiB
C
101 lines
1.8 KiB
C
#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include "intr_remapping.h"
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int intr_remapping_enabled;
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int disable_intremap;
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int disable_sourceid_checking;
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int no_x2apic_optout;
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static struct irq_remap_ops *remap_ops;
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static __init int setup_nointremap(char *str)
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{
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disable_intremap = 1;
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return 0;
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}
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early_param("nointremap", setup_nointremap);
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static __init int setup_intremap(char *str)
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{
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if (!str)
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return -EINVAL;
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while (*str) {
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if (!strncmp(str, "on", 2))
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disable_intremap = 0;
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else if (!strncmp(str, "off", 3))
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disable_intremap = 1;
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else if (!strncmp(str, "nosid", 5))
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disable_sourceid_checking = 1;
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else if (!strncmp(str, "no_x2apic_optout", 16))
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no_x2apic_optout = 1;
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str += strcspn(str, ",");
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while (*str == ',')
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str++;
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}
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return 0;
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}
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early_param("intremap", setup_intremap);
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void __init setup_intr_remapping(void)
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{
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remap_ops = &intel_irq_remap_ops;
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}
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int intr_remapping_supported(void)
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{
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if (disable_intremap)
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return 0;
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if (!remap_ops || !remap_ops->supported)
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return 0;
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return remap_ops->supported();
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}
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int __init intr_hardware_init(void)
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{
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if (!remap_ops || !remap_ops->hardware_init)
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return -ENODEV;
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return remap_ops->hardware_init();
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}
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int __init intr_hardware_enable(void)
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{
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if (!remap_ops || !remap_ops->hardware_enable)
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return -ENODEV;
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return remap_ops->hardware_enable();
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}
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void intr_hardware_disable(void)
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{
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if (!remap_ops || !remap_ops->hardware_disable)
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return;
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remap_ops->hardware_disable();
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}
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int intr_hardware_reenable(int mode)
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{
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if (!remap_ops || !remap_ops->hardware_reenable)
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return 0;
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return remap_ops->hardware_reenable(mode);
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}
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int __init intr_enable_fault_handling(void)
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{
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if (!remap_ops || !remap_ops->enable_faulting)
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return -ENODEV;
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return remap_ops->enable_faulting();
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}
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