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-rw-r--r--arch/x86/include/asm/amd_iommu.h2
-rw-r--r--arch/x86/include/asm/gart.h4
-rw-r--r--arch/x86/include/asm/iommu.h2
-rw-r--r--arch/x86/include/asm/x86_init.h1
-rw-r--r--arch/x86/kernel/amd_iommu_init.c6
-rw-r--r--arch/x86/kernel/crash.c5
-rw-r--r--arch/x86/kernel/pci-dma.c7
-rw-r--r--arch/x86/kernel/pci-gart_64.c6
-rw-r--r--arch/x86/kernel/reboot.c4
-rw-r--r--arch/x86/kernel/x86_init.c2
10 files changed, 13 insertions, 26 deletions
diff --git a/arch/x86/include/asm/amd_iommu.h b/arch/x86/include/asm/amd_iommu.h
index 4b180897e6b5..3604669f7b15 100644
--- a/arch/x86/include/asm/amd_iommu.h
+++ b/arch/x86/include/asm/amd_iommu.h
@@ -30,12 +30,10 @@ extern void amd_iommu_detect(void);
extern irqreturn_t amd_iommu_int_handler(int irq, void *data);
extern void amd_iommu_flush_all_domains(void);
extern void amd_iommu_flush_all_devices(void);
-extern void amd_iommu_shutdown(void);
extern void amd_iommu_apply_erratum_63(u16 devid);
#else
static inline int amd_iommu_init(void) { return -ENODEV; }
static inline void amd_iommu_detect(void) { }
-static inline void amd_iommu_shutdown(void) { }
#endif
#endif /* _ASM_X86_AMD_IOMMU_H */
diff --git a/arch/x86/include/asm/gart.h b/arch/x86/include/asm/gart.h
index 6cfdafa409d8..4fdd5b3f87b1 100644
--- a/arch/x86/include/asm/gart.h
+++ b/arch/x86/include/asm/gart.h
@@ -36,7 +36,6 @@ extern int gart_iommu_aperture_disabled;
extern void early_gart_iommu_check(void);
extern void gart_iommu_init(void);
-extern void gart_iommu_shutdown(void);
extern void __init gart_parse_options(char *);
extern void gart_iommu_hole_init(void);
@@ -51,9 +50,6 @@ static inline void early_gart_iommu_check(void)
static inline void gart_iommu_init(void)
{
}
-static inline void gart_iommu_shutdown(void)
-{
-}
static inline void gart_parse_options(char *options)
{
}
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index fd6d21bbee6c..878b30715766 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -1,7 +1,7 @@
#ifndef _ASM_X86_IOMMU_H
#define _ASM_X86_IOMMU_H
-extern void pci_iommu_shutdown(void);
+static inline void iommu_shutdown_noop(void) {}
extern void no_iommu_init(void);
extern struct dma_map_ops nommu_dma_ops;
extern int force_iommu, no_iommu;
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 2c756fd4ab0e..66008ed80b7a 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -121,6 +121,7 @@ struct x86_platform_ops {
unsigned long (*calibrate_tsc)(void);
unsigned long (*get_wallclock)(void);
int (*set_wallclock)(unsigned long nowtime);
+ void (*iommu_shutdown)(void);
};
extern struct x86_init_ops x86_init;
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index c20001e4f556..6acd43e9afd7 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -1297,6 +1297,7 @@ int __init amd_iommu_init(void)
else
printk(KERN_INFO "AMD-Vi: Lazy IO/TLB flushing enabled\n");
+ x86_platform.iommu_shutdown = disable_iommus;
out:
return ret;
@@ -1323,11 +1324,6 @@ free:
goto out;
}
-void amd_iommu_shutdown(void)
-{
- disable_iommus();
-}
-
/****************************************************************************
*
* Early detect code. This code runs at IOMMU detection time in the DMA
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 5e409dc298a4..a4849c10a77e 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -27,8 +27,7 @@
#include <asm/cpu.h>
#include <asm/reboot.h>
#include <asm/virtext.h>
-#include <asm/iommu.h>
-
+#include <asm/x86_init.h>
#if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC)
@@ -106,7 +105,7 @@ void native_machine_crash_shutdown(struct pt_regs *regs)
#endif
#ifdef CONFIG_X86_64
- pci_iommu_shutdown();
+ x86_platform.iommu_shutdown();
#endif
crash_save_cpu(regs, safe_smp_processor_id());
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index b2a71dca5642..ce2fb91bbed1 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -303,13 +303,6 @@ static int __init pci_iommu_init(void)
no_iommu_init();
return 0;
}
-
-void pci_iommu_shutdown(void)
-{
- gart_iommu_shutdown();
-
- amd_iommu_shutdown();
-}
/* Must execute after PCI subsystem */
rootfs_initcall(pci_iommu_init);
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index a7f1b64f86e0..a9bcdf7c8801 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -39,6 +39,7 @@
#include <asm/swiotlb.h>
#include <asm/dma.h>
#include <asm/k8.h>
+#include <asm/x86_init.h>
static unsigned long iommu_bus_base; /* GART remapping area (physical) */
static unsigned long iommu_size; /* size of remapping area bytes */
@@ -688,12 +689,12 @@ static struct dma_map_ops gart_dma_ops = {
.free_coherent = gart_free_coherent,
};
-void gart_iommu_shutdown(void)
+static void gart_iommu_shutdown(void)
{
struct pci_dev *dev;
int i;
- if (no_agp && (dma_ops != &gart_dma_ops))
+ if (no_agp)
return;
for (i = 0; i < num_k8_northbridges; i++) {
@@ -838,6 +839,7 @@ void __init gart_iommu_init(void)
flush_gart();
dma_ops = &gart_dma_ops;
+ x86_platform.iommu_shutdown = gart_iommu_shutdown;
}
void __init gart_parse_options(char *p)
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index f93078746e00..2b97fc5b124e 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -23,7 +23,7 @@
# include <linux/ctype.h>
# include <linux/mc146818rtc.h>
#else
-# include <asm/iommu.h>
+# include <asm/x86_init.h>
#endif
/*
@@ -622,7 +622,7 @@ void native_machine_shutdown(void)
#endif
#ifdef CONFIG_X86_64
- pci_iommu_shutdown();
+ x86_platform.iommu_shutdown();
#endif
}
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 4449a4a2c2ed..bc9b230ef402 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -14,6 +14,7 @@
#include <asm/time.h>
#include <asm/irq.h>
#include <asm/tsc.h>
+#include <asm/iommu.h>
void __cpuinit x86_init_noop(void) { }
void __init x86_init_uint_noop(unsigned int unused) { }
@@ -72,4 +73,5 @@ struct x86_platform_ops x86_platform = {
.calibrate_tsc = native_calibrate_tsc,
.get_wallclock = mach_get_cmos_time,
.set_wallclock = mach_set_rtc_mmss,
+ .iommu_shutdown = iommu_shutdown_noop,
};
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-26 04:44:58 +0000