From 0d974d4592708f85044751817da4b7016e1b0602 Mon Sep 17 00:00:00 2001
From: Brian Gerst <brgerst@gmail.com>
Date: Sun, 18 Jan 2009 19:52:25 -0500
Subject: x86: remove pda.h
Impact: cleanup
Signed-off-by: Brian Gerst <brgerst@gmail.com>
---
arch/x86/kernel/traps.c | 1 -
1 file changed, 1 deletion(-)
(limited to 'arch/x86/kernel/traps.c')
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 98c2d055284..ed5aee5f3fc 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -59,7 +59,6 @@
#ifdef CONFIG_X86_64
#include <asm/pgalloc.h>
#include <asm/proto.h>
-#include <asm/pda.h>
#else
#include <asm/processor-flags.h>
#include <asm/arch_hooks.h>
--
cgit v1.2.3-70-g09d2
From 1164dd0099c0d79146a55319670f57ab7ad1d352 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 28 Jan 2009 19:34:09 +0100
Subject: x86: move mach-default/*.h files to asm/
We are getting rid of subarchitecture support - move the hook files
to asm/. (These are now stale and should be replaced with more explicit
runtime mechanisms - but the transition is simpler this way.)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/include/asm/apm.h | 73 +++++++++++++++++++++++
arch/x86/include/asm/do_timer.h | 16 +++++
arch/x86/include/asm/entry_arch.h | 57 ++++++++++++++++++
arch/x86/include/asm/mach-default/apm.h | 73 -----------------------
arch/x86/include/asm/mach-default/do_timer.h | 16 -----
arch/x86/include/asm/mach-default/entry_arch.h | 52 ----------------
arch/x86/include/asm/mach-default/mach_timer.h | 48 ---------------
arch/x86/include/asm/mach-default/mach_traps.h | 33 ----------
arch/x86/include/asm/mach-default/pci-functions.h | 19 ------
arch/x86/include/asm/mach-default/setup_arch.h | 3 -
arch/x86/include/asm/mach-default/smpboot_hooks.h | 61 -------------------
arch/x86/include/asm/mach_timer.h | 48 +++++++++++++++
arch/x86/include/asm/mach_traps.h | 33 ++++++++++
arch/x86/include/asm/pci-functions.h | 19 ++++++
arch/x86/include/asm/setup_arch.h | 3 +
arch/x86/include/asm/smpboot_hooks.h | 61 +++++++++++++++++++
arch/x86/kernel/apm_32.c | 2 +-
arch/x86/kernel/entry_32.S | 2 +-
arch/x86/kernel/nmi.c | 2 +-
arch/x86/kernel/probe_roms_32.c | 2 +-
arch/x86/kernel/setup.c | 2 +-
arch/x86/kernel/smpboot.c | 2 +-
arch/x86/kernel/time_32.c | 2 +-
arch/x86/kernel/traps.c | 2 +-
arch/x86/pci/pcbios.c | 2 +-
drivers/clocksource/acpi_pm.c | 2 +-
drivers/clocksource/cyclone.c | 2 +-
27 files changed, 321 insertions(+), 316 deletions(-)
create mode 100644 arch/x86/include/asm/apm.h
create mode 100644 arch/x86/include/asm/do_timer.h
create mode 100644 arch/x86/include/asm/entry_arch.h
delete mode 100644 arch/x86/include/asm/mach-default/apm.h
delete mode 100644 arch/x86/include/asm/mach-default/do_timer.h
delete mode 100644 arch/x86/include/asm/mach-default/entry_arch.h
delete mode 100644 arch/x86/include/asm/mach-default/mach_timer.h
delete mode 100644 arch/x86/include/asm/mach-default/mach_traps.h
delete mode 100644 arch/x86/include/asm/mach-default/pci-functions.h
delete mode 100644 arch/x86/include/asm/mach-default/setup_arch.h
delete mode 100644 arch/x86/include/asm/mach-default/smpboot_hooks.h
create mode 100644 arch/x86/include/asm/mach_timer.h
create mode 100644 arch/x86/include/asm/mach_traps.h
create mode 100644 arch/x86/include/asm/pci-functions.h
create mode 100644 arch/x86/include/asm/setup_arch.h
create mode 100644 arch/x86/include/asm/smpboot_hooks.h
(limited to 'arch/x86/kernel/traps.c')
diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h
new file mode 100644
index 00000000000..20370c6db74
--- /dev/null
+++ b/arch/x86/include/asm/apm.h
@@ -0,0 +1,73 @@
+/*
+ * Machine specific APM BIOS functions for generic.
+ * Split out from apm.c by Osamu Tomita <tomita@cinet.co.jp>
+ */
+
+#ifndef _ASM_X86_MACH_DEFAULT_APM_H
+#define _ASM_X86_MACH_DEFAULT_APM_H
+
+#ifdef APM_ZERO_SEGS
+# define APM_DO_ZERO_SEGS \
+ "pushl %%ds\n\t" \
+ "pushl %%es\n\t" \
+ "xorl %%edx, %%edx\n\t" \
+ "mov %%dx, %%ds\n\t" \
+ "mov %%dx, %%es\n\t" \
+ "mov %%dx, %%fs\n\t" \
+ "mov %%dx, %%gs\n\t"
+# define APM_DO_POP_SEGS \
+ "popl %%es\n\t" \
+ "popl %%ds\n\t"
+#else
+# define APM_DO_ZERO_SEGS
+# define APM_DO_POP_SEGS
+#endif
+
+static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
+ u32 *eax, u32 *ebx, u32 *ecx,
+ u32 *edx, u32 *esi)
+{
+ /*
+ * N.B. We do NOT need a cld after the BIOS call
+ * because we always save and restore the flags.
+ */
+ __asm__ __volatile__(APM_DO_ZERO_SEGS
+ "pushl %%edi\n\t"
+ "pushl %%ebp\n\t"
+ "lcall *%%cs:apm_bios_entry\n\t"
+ "setc %%al\n\t"
+ "popl %%ebp\n\t"
+ "popl %%edi\n\t"
+ APM_DO_POP_SEGS
+ : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx),
+ "=S" (*esi)
+ : "a" (func), "b" (ebx_in), "c" (ecx_in)
+ : "memory", "cc");
+}
+
+static inline u8 apm_bios_call_simple_asm(u32 func, u32 ebx_in,
+ u32 ecx_in, u32 *eax)
+{
+ int cx, dx, si;
+ u8 error;
+
+ /*
+ * N.B. We do NOT need a cld after the BIOS call
+ * because we always save and restore the flags.
+ */
+ __asm__ __volatile__(APM_DO_ZERO_SEGS
+ "pushl %%edi\n\t"
+ "pushl %%ebp\n\t"
+ "lcall *%%cs:apm_bios_entry\n\t"
+ "setc %%bl\n\t"
+ "popl %%ebp\n\t"
+ "popl %%edi\n\t"
+ APM_DO_POP_SEGS
+ : "=a" (*eax), "=b" (error), "=c" (cx), "=d" (dx),
+ "=S" (si)
+ : "a" (func), "b" (ebx_in), "c" (ecx_in)
+ : "memory", "cc");
+ return error;
+}
+
+#endif /* _ASM_X86_MACH_DEFAULT_APM_H */
diff --git a/arch/x86/include/asm/do_timer.h b/arch/x86/include/asm/do_timer.h
new file mode 100644
index 00000000000..23ecda0b28a
--- /dev/null
+++ b/arch/x86/include/asm/do_timer.h
@@ -0,0 +1,16 @@
+/* defines for inline arch setup functions */
+#include <linux/clockchips.h>
+
+#include <asm/i8259.h>
+#include <asm/i8253.h>
+
+/**
+ * do_timer_interrupt_hook - hook into timer tick
+ *
+ * Call the pit clock event handler. see asm/i8253.h
+ **/
+
+static inline void do_timer_interrupt_hook(void)
+{
+ global_clock_event->event_handler(global_clock_event);
+}
diff --git a/arch/x86/include/asm/entry_arch.h b/arch/x86/include/asm/entry_arch.h
new file mode 100644
index 00000000000..b87b077cc23
--- /dev/null
+++ b/arch/x86/include/asm/entry_arch.h
@@ -0,0 +1,57 @@
+/*
+ * This file is designed to contain the BUILD_INTERRUPT specifications for
+ * all of the extra named interrupt vectors used by the architecture.
+ * Usually this is the Inter Process Interrupts (IPIs)
+ */
+
+/*
+ * The following vectors are part of the Linux architecture, there
+ * is no hardware IRQ pin equivalent for them, they are triggered
+ * through the ICC by us (IPIs)
+ */
+#ifdef CONFIG_X86_SMP
+BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR)
+BUILD_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR)
+BUILD_INTERRUPT(call_function_single_interrupt,CALL_FUNCTION_SINGLE_VECTOR)
+BUILD_INTERRUPT(irq_move_cleanup_interrupt,IRQ_MOVE_CLEANUP_VECTOR)
+
+BUILD_INTERRUPT3(invalidate_interrupt0,INVALIDATE_TLB_VECTOR_START+0,
+ smp_invalidate_interrupt)
+BUILD_INTERRUPT3(invalidate_interrupt1,INVALIDATE_TLB_VECTOR_START+1,
+ smp_invalidate_interrupt)
+BUILD_INTERRUPT3(invalidate_interrupt2,INVALIDATE_TLB_VECTOR_START+2,
+ smp_invalidate_interrupt)
+BUILD_INTERRUPT3(invalidate_interrupt3,INVALIDATE_TLB_VECTOR_START+3,
+ smp_invalidate_interrupt)
+BUILD_INTERRUPT3(invalidate_interrupt4,INVALIDATE_TLB_VECTOR_START+4,
+ smp_invalidate_interrupt)
+BUILD_INTERRUPT3(invalidate_interrupt5,INVALIDATE_TLB_VECTOR_START+5,
+ smp_invalidate_interrupt)
+BUILD_INTERRUPT3(invalidate_interrupt6,INVALIDATE_TLB_VECTOR_START+6,
+ smp_invalidate_interrupt)
+BUILD_INTERRUPT3(invalidate_interrupt7,INVALIDATE_TLB_VECTOR_START+7,
+ smp_invalidate_interrupt)
+#endif
+
+/*
+ * every pentium local APIC has two 'local interrupts', with a
+ * soft-definable vector attached to both interrupts, one of
+ * which is a timer interrupt, the other one is error counter
+ * overflow. Linux uses the local APIC timer interrupt to get
+ * a much simpler SMP time architecture:
+ */
+#ifdef CONFIG_X86_LOCAL_APIC
+
+BUILD_INTERRUPT(apic_timer_interrupt,LOCAL_TIMER_VECTOR)
+BUILD_INTERRUPT(error_interrupt,ERROR_APIC_VECTOR)
+BUILD_INTERRUPT(spurious_interrupt,SPURIOUS_APIC_VECTOR)
+
+#ifdef CONFIG_PERF_COUNTERS
+BUILD_INTERRUPT(perf_counter_interrupt, LOCAL_PERF_VECTOR)
+#endif
+
+#ifdef CONFIG_X86_MCE_P4THERMAL
+BUILD_INTERRUPT(thermal_interrupt,THERMAL_APIC_VECTOR)
+#endif
+
+#endif
diff --git a/arch/x86/include/asm/mach-default/apm.h b/arch/x86/include/asm/mach-default/apm.h
deleted file mode 100644
index 20370c6db74..00000000000
--- a/arch/x86/include/asm/mach-default/apm.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Machine specific APM BIOS functions for generic.
- * Split out from apm.c by Osamu Tomita <tomita@cinet.co.jp>
- */
-
-#ifndef _ASM_X86_MACH_DEFAULT_APM_H
-#define _ASM_X86_MACH_DEFAULT_APM_H
-
-#ifdef APM_ZERO_SEGS
-# define APM_DO_ZERO_SEGS \
- "pushl %%ds\n\t" \
- "pushl %%es\n\t" \
- "xorl %%edx, %%edx\n\t" \
- "mov %%dx, %%ds\n\t" \
- "mov %%dx, %%es\n\t" \
- "mov %%dx, %%fs\n\t" \
- "mov %%dx, %%gs\n\t"
-# define APM_DO_POP_SEGS \
- "popl %%es\n\t" \
- "popl %%ds\n\t"
-#else
-# define APM_DO_ZERO_SEGS
-# define APM_DO_POP_SEGS
-#endif
-
-static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
- u32 *eax, u32 *ebx, u32 *ecx,
- u32 *edx, u32 *esi)
-{
- /*
- * N.B. We do NOT need a cld after the BIOS call
- * because we always save and restore the flags.
- */
- __asm__ __volatile__(APM_DO_ZERO_SEGS
- "pushl %%edi\n\t"
- "pushl %%ebp\n\t"
- "lcall *%%cs:apm_bios_entry\n\t"
- "setc %%al\n\t"
- "popl %%ebp\n\t"
- "popl %%edi\n\t"
- APM_DO_POP_SEGS
- : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx),
- "=S" (*esi)
- : "a" (func), "b" (ebx_in), "c" (ecx_in)
- : "memory", "cc");
-}
-
-static inline u8 apm_bios_call_simple_asm(u32 func, u32 ebx_in,
- u32 ecx_in, u32 *eax)
-{
- int cx, dx, si;
- u8 error;
-
- /*
- * N.B. We do NOT need a cld after the BIOS call
- * because we always save and restore the flags.
- */
- __asm__ __volatile__(APM_DO_ZERO_SEGS
- "pushl %%edi\n\t"
- "pushl %%ebp\n\t"
- "lcall *%%cs:apm_bios_entry\n\t"
- "setc %%bl\n\t"
- "popl %%ebp\n\t"
- "popl %%edi\n\t"
- APM_DO_POP_SEGS
- : "=a" (*eax), "=b" (error), "=c" (cx), "=d" (dx),
- "=S" (si)
- : "a" (func), "b" (ebx_in), "c" (ecx_in)
- : "memory", "cc");
- return error;
-}
-
-#endif /* _ASM_X86_MACH_DEFAULT_APM_H */
diff --git a/arch/x86/include/asm/mach-default/do_timer.h b/arch/x86/include/asm/mach-default/do_timer.h
deleted file mode 100644
index 23ecda0b28a..00000000000
--- a/arch/x86/include/asm/mach-default/do_timer.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* defines for inline arch setup functions */
-#include <linux/clockchips.h>
-
-#include <asm/i8259.h>
-#include <asm/i8253.h>
-
-/**
- * do_timer_interrupt_hook - hook into timer tick
- *
- * Call the pit clock event handler. see asm/i8253.h
- **/
-
-static inline void do_timer_interrupt_hook(void)
-{
- global_clock_event->event_handler(global_clock_event);
-}
diff --git a/arch/x86/include/asm/mach-default/entry_arch.h b/arch/x86/include/asm/mach-default/entry_arch.h
deleted file mode 100644
index 6fa399ad1de..00000000000
--- a/arch/x86/include/asm/mach-default/entry_arch.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * This file is designed to contain the BUILD_INTERRUPT specifications for
- * all of the extra named interrupt vectors used by the architecture.
- * Usually this is the Inter Process Interrupts (IPIs)
- */
-
-/*
- * The following vectors are part of the Linux architecture, there
- * is no hardware IRQ pin equivalent for them, they are triggered
- * through the ICC by us (IPIs)
- */
-#ifdef CONFIG_X86_SMP
-BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR)
-BUILD_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR)
-BUILD_INTERRUPT(call_function_single_interrupt,CALL_FUNCTION_SINGLE_VECTOR)
-BUILD_INTERRUPT(irq_move_cleanup_interrupt,IRQ_MOVE_CLEANUP_VECTOR)
-
-BUILD_INTERRUPT3(invalidate_interrupt0,INVALIDATE_TLB_VECTOR_START+0,
- smp_invalidate_interrupt)
-BUILD_INTERRUPT3(invalidate_interrupt1,INVALIDATE_TLB_VECTOR_START+1,
- smp_invalidate_interrupt)
-BUILD_INTERRUPT3(invalidate_interrupt2,INVALIDATE_TLB_VECTOR_START+2,
- smp_invalidate_interrupt)
-BUILD_INTERRUPT3(invalidate_interrupt3,INVALIDATE_TLB_VECTOR_START+3,
- smp_invalidate_interrupt)
-BUILD_INTERRUPT3(invalidate_interrupt4,INVALIDATE_TLB_VECTOR_START+4,
- smp_invalidate_interrupt)
-BUILD_INTERRUPT3(invalidate_interrupt5,INVALIDATE_TLB_VECTOR_START+5,
- smp_invalidate_interrupt)
-BUILD_INTERRUPT3(invalidate_interrupt6,INVALIDATE_TLB_VECTOR_START+6,
- smp_invalidate_interrupt)
-BUILD_INTERRUPT3(invalidate_interrupt7,INVALIDATE_TLB_VECTOR_START+7,
- smp_invalidate_interrupt)
-#endif
-
-/*
- * every pentium local APIC has two 'local interrupts', with a
- * soft-definable vector attached to both interrupts, one of
- * which is a timer interrupt, the other one is error counter
- * overflow. Linux uses the local APIC timer interrupt to get
- * a much simpler SMP time architecture:
- */
-#ifdef CONFIG_X86_LOCAL_APIC
-BUILD_INTERRUPT(apic_timer_interrupt,LOCAL_TIMER_VECTOR)
-BUILD_INTERRUPT(error_interrupt,ERROR_APIC_VECTOR)
-BUILD_INTERRUPT(spurious_interrupt,SPURIOUS_APIC_VECTOR)
-
-#ifdef CONFIG_X86_MCE_P4THERMAL
-BUILD_INTERRUPT(thermal_interrupt,THERMAL_APIC_VECTOR)
-#endif
-
-#endif
diff --git a/arch/x86/include/asm/mach-default/mach_timer.h b/arch/x86/include/asm/mach-default/mach_timer.h
deleted file mode 100644
index 853728519ae..00000000000
--- a/arch/x86/include/asm/mach-default/mach_timer.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Machine specific calibrate_tsc() for generic.
- * Split out from timer_tsc.c by Osamu Tomita <tomita@cinet.co.jp>
- */
-/* ------ Calibrate the TSC -------
- * Return 2^32 * (1 / (TSC clocks per usec)) for do_fast_gettimeoffset().
- * Too much 64-bit arithmetic here to do this cleanly in C, and for
- * accuracy's sake we want to keep the overhead on the CTC speaker (channel 2)
- * output busy loop as low as possible. We avoid reading the CTC registers
- * directly because of the awkward 8-bit access mechanism of the 82C54
- * device.
- */
-#ifndef _ASM_X86_MACH_DEFAULT_MACH_TIMER_H
-#define _ASM_X86_MACH_DEFAULT_MACH_TIMER_H
-
-#define CALIBRATE_TIME_MSEC 30 /* 30 msecs */
-#define CALIBRATE_LATCH \
- ((CLOCK_TICK_RATE * CALIBRATE_TIME_MSEC + 1000/2)/1000)
-
-static inline void mach_prepare_counter(void)
-{
- /* Set the Gate high, disable speaker */
- outb((inb(0x61) & ~0x02) | 0x01, 0x61);
-
- /*
- * Now let's take care of CTC channel 2
- *
- * Set the Gate high, program CTC channel 2 for mode 0,
- * (interrupt on terminal count mode), binary count,
- * load 5 * LATCH count, (LSB and MSB) to begin countdown.
- *
- * Some devices need a delay here.
- */
- outb(0xb0, 0x43); /* binary, mode 0, LSB/MSB, Ch 2 */
- outb_p(CALIBRATE_LATCH & 0xff, 0x42); /* LSB of count */
- outb_p(CALIBRATE_LATCH >> 8, 0x42); /* MSB of count */
-}
-
-static inline void mach_countup(unsigned long *count_p)
-{
- unsigned long count = 0;
- do {
- count++;
- } while ((inb_p(0x61) & 0x20) == 0);
- *count_p = count;
-}
-
-#endif /* _ASM_X86_MACH_DEFAULT_MACH_TIMER_H */
diff --git a/arch/x86/include/asm/mach-default/mach_traps.h b/arch/x86/include/asm/mach-default/mach_traps.h
deleted file mode 100644
index f7920601e47..00000000000
--- a/arch/x86/include/asm/mach-default/mach_traps.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Machine specific NMI handling for generic.
- * Split out from traps.c by Osamu Tomita <tomita@cinet.co.jp>
- */
-#ifndef _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H
-#define _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H
-
-#include <asm/mc146818rtc.h>
-
-static inline unsigned char get_nmi_reason(void)
-{
- return inb(0x61);
-}
-
-static inline void reassert_nmi(void)
-{
- int old_reg = -1;
-
- if (do_i_have_lock_cmos())
- old_reg = current_lock_cmos_reg();
- else
- lock_cmos(0); /* register doesn't matter here */
- outb(0x8f, 0x70);
- inb(0x71); /* dummy */
- outb(0x0f, 0x70);
- inb(0x71); /* dummy */
- if (old_reg >= 0)
- outb(old_reg, 0x70);
- else
- unlock_cmos();
-}
-
-#endif /* _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H */
diff --git a/arch/x86/include/asm/mach-default/pci-functions.h b/arch/x86/include/asm/mach-default/pci-functions.h
deleted file mode 100644
index ed0bab42735..00000000000
--- a/arch/x86/include/asm/mach-default/pci-functions.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * PCI BIOS function numbering for conventional PCI BIOS
- * systems
- */
-
-#define PCIBIOS_PCI_FUNCTION_ID 0xb1XX
-#define PCIBIOS_PCI_BIOS_PRESENT 0xb101
-#define PCIBIOS_FIND_PCI_DEVICE 0xb102
-#define PCIBIOS_FIND_PCI_CLASS_CODE 0xb103
-#define PCIBIOS_GENERATE_SPECIAL_CYCLE 0xb106
-#define PCIBIOS_READ_CONFIG_BYTE 0xb108
-#define PCIBIOS_READ_CONFIG_WORD 0xb109
-#define PCIBIOS_READ_CONFIG_DWORD 0xb10a
-#define PCIBIOS_WRITE_CONFIG_BYTE 0xb10b
-#define PCIBIOS_WRITE_CONFIG_WORD 0xb10c
-#define PCIBIOS_WRITE_CONFIG_DWORD 0xb10d
-#define PCIBIOS_GET_ROUTING_OPTIONS 0xb10e
-#define PCIBIOS_SET_PCI_HW_INT 0xb10f
-
diff --git a/arch/x86/include/asm/mach-default/setup_arch.h b/arch/x86/include/asm/mach-default/setup_arch.h
deleted file mode 100644
index 38846208b54..00000000000
--- a/arch/x86/include/asm/mach-default/setup_arch.h
+++ /dev/null
@@ -1,3 +0,0 @@
-/* Hook to call BIOS initialisation function */
-
-/* no action for generic */
diff --git a/arch/x86/include/asm/mach-default/smpboot_hooks.h b/arch/x86/include/asm/mach-default/smpboot_hooks.h
deleted file mode 100644
index 1def6011490..00000000000
--- a/arch/x86/include/asm/mach-default/smpboot_hooks.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/* two abstractions specific to kernel/smpboot.c, mainly to cater to visws
- * which needs to alter them. */
-
-static inline void smpboot_clear_io_apic_irqs(void)
-{
-#ifdef CONFIG_X86_IO_APIC
- io_apic_irqs = 0;
-#endif
-}
-
-static inline void smpboot_setup_warm_reset_vector(unsigned long start_eip)
-{
- CMOS_WRITE(0xa, 0xf);
- local_flush_tlb();
- pr_debug("1.\n");
- *((volatile unsigned short *)phys_to_virt(apic->trampoline_phys_high)) =
- start_eip >> 4;
- pr_debug("2.\n");
- *((volatile unsigned short *)phys_to_virt(apic->trampoline_phys_low)) =
- start_eip & 0xf;
- pr_debug("3.\n");
-}
-
-static inline void smpboot_restore_warm_reset_vector(void)
-{
- /*
- * Install writable page 0 entry to set BIOS data area.
- */
- local_flush_tlb();
-
- /*
- * Paranoid: Set warm reset code and vector here back
- * to default values.
- */
- CMOS_WRITE(0, 0xf);
-
- *((volatile long *)phys_to_virt(apic->trampoline_phys_low)) = 0;
-}
-
-static inline void __init smpboot_setup_io_apic(void)
-{
-#ifdef CONFIG_X86_IO_APIC
- /*
- * Here we can be sure that there is an IO-APIC in the system. Let's
- * go and set it up:
- */
- if (!skip_ioapic_setup && nr_ioapics)
- setup_IO_APIC();
- else {
- nr_ioapics = 0;
- localise_nmi_watchdog();
- }
-#endif
-}
-
-static inline void smpboot_clear_io_apic(void)
-{
-#ifdef CONFIG_X86_IO_APIC
- nr_ioapics = 0;
-#endif
-}
diff --git a/arch/x86/include/asm/mach_timer.h b/arch/x86/include/asm/mach_timer.h
new file mode 100644
index 00000000000..853728519ae
--- /dev/null
+++ b/arch/x86/include/asm/mach_timer.h
@@ -0,0 +1,48 @@
+/*
+ * Machine specific calibrate_tsc() for generic.
+ * Split out from timer_tsc.c by Osamu Tomita <tomita@cinet.co.jp>
+ */
+/* ------ Calibrate the TSC -------
+ * Return 2^32 * (1 / (TSC clocks per usec)) for do_fast_gettimeoffset().
+ * Too much 64-bit arithmetic here to do this cleanly in C, and for
+ * accuracy's sake we want to keep the overhead on the CTC speaker (channel 2)
+ * output busy loop as low as possible. We avoid reading the CTC registers
+ * directly because of the awkward 8-bit access mechanism of the 82C54
+ * device.
+ */
+#ifndef _ASM_X86_MACH_DEFAULT_MACH_TIMER_H
+#define _ASM_X86_MACH_DEFAULT_MACH_TIMER_H
+
+#define CALIBRATE_TIME_MSEC 30 /* 30 msecs */
+#define CALIBRATE_LATCH \
+ ((CLOCK_TICK_RATE * CALIBRATE_TIME_MSEC + 1000/2)/1000)
+
+static inline void mach_prepare_counter(void)
+{
+ /* Set the Gate high, disable speaker */
+ outb((inb(0x61) & ~0x02) | 0x01, 0x61);
+
+ /*
+ * Now let's take care of CTC channel 2
+ *
+ * Set the Gate high, program CTC channel 2 for mode 0,
+ * (interrupt on terminal count mode), binary count,
+ * load 5 * LATCH count, (LSB and MSB) to begin countdown.
+ *
+ * Some devices need a delay here.
+ */
+ outb(0xb0, 0x43); /* binary, mode 0, LSB/MSB, Ch 2 */
+ outb_p(CALIBRATE_LATCH & 0xff, 0x42); /* LSB of count */
+ outb_p(CALIBRATE_LATCH >> 8, 0x42); /* MSB of count */
+}
+
+static inline void mach_countup(unsigned long *count_p)
+{
+ unsigned long count = 0;
+ do {
+ count++;
+ } while ((inb_p(0x61) & 0x20) == 0);
+ *count_p = count;
+}
+
+#endif /* _ASM_X86_MACH_DEFAULT_MACH_TIMER_H */
diff --git a/arch/x86/include/asm/mach_traps.h b/arch/x86/include/asm/mach_traps.h
new file mode 100644
index 00000000000..f7920601e47
--- /dev/null
+++ b/arch/x86/include/asm/mach_traps.h
@@ -0,0 +1,33 @@
+/*
+ * Machine specific NMI handling for generic.
+ * Split out from traps.c by Osamu Tomita <tomita@cinet.co.jp>
+ */
+#ifndef _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H
+#define _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H
+
+#include <asm/mc146818rtc.h>
+
+static inline unsigned char get_nmi_reason(void)
+{
+ return inb(0x61);
+}
+
+static inline void reassert_nmi(void)
+{
+ int old_reg = -1;
+
+ if (do_i_have_lock_cmos())
+ old_reg = current_lock_cmos_reg();
+ else
+ lock_cmos(0); /* register doesn't matter here */
+ outb(0x8f, 0x70);
+ inb(0x71); /* dummy */
+ outb(0x0f, 0x70);
+ inb(0x71); /* dummy */
+ if (old_reg >= 0)
+ outb(old_reg, 0x70);
+ else
+ unlock_cmos();
+}
+
+#endif /* _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H */
diff --git a/arch/x86/include/asm/pci-functions.h b/arch/x86/include/asm/pci-functions.h
new file mode 100644
index 00000000000..ed0bab42735
--- /dev/null
+++ b/arch/x86/include/asm/pci-functions.h
@@ -0,0 +1,19 @@
+/*
+ * PCI BIOS function numbering for conventional PCI BIOS
+ * systems
+ */
+
+#define PCIBIOS_PCI_FUNCTION_ID 0xb1XX
+#define PCIBIOS_PCI_BIOS_PRESENT 0xb101
+#define PCIBIOS_FIND_PCI_DEVICE 0xb102
+#define PCIBIOS_FIND_PCI_CLASS_CODE 0xb103
+#define PCIBIOS_GENERATE_SPECIAL_CYCLE 0xb106
+#define PCIBIOS_READ_CONFIG_BYTE 0xb108
+#define PCIBIOS_READ_CONFIG_WORD 0xb109
+#define PCIBIOS_READ_CONFIG_DWORD 0xb10a
+#define PCIBIOS_WRITE_CONFIG_BYTE 0xb10b
+#define PCIBIOS_WRITE_CONFIG_WORD 0xb10c
+#define PCIBIOS_WRITE_CONFIG_DWORD 0xb10d
+#define PCIBIOS_GET_ROUTING_OPTIONS 0xb10e
+#define PCIBIOS_SET_PCI_HW_INT 0xb10f
+
diff --git a/arch/x86/include/asm/setup_arch.h b/arch/x86/include/asm/setup_arch.h
new file mode 100644
index 00000000000..38846208b54
--- /dev/null
+++ b/arch/x86/include/asm/setup_arch.h
@@ -0,0 +1,3 @@
+/* Hook to call BIOS initialisation function */
+
+/* no action for generic */
diff --git a/arch/x86/include/asm/smpboot_hooks.h b/arch/x86/include/asm/smpboot_hooks.h
new file mode 100644
index 00000000000..1def6011490
--- /dev/null
+++ b/arch/x86/include/asm/smpboot_hooks.h
@@ -0,0 +1,61 @@
+/* two abstractions specific to kernel/smpboot.c, mainly to cater to visws
+ * which needs to alter them. */
+
+static inline void smpboot_clear_io_apic_irqs(void)
+{
+#ifdef CONFIG_X86_IO_APIC
+ io_apic_irqs = 0;
+#endif
+}
+
+static inline void smpboot_setup_warm_reset_vector(unsigned long start_eip)
+{
+ CMOS_WRITE(0xa, 0xf);
+ local_flush_tlb();
+ pr_debug("1.\n");
+ *((volatile unsigned short *)phys_to_virt(apic->trampoline_phys_high)) =
+ start_eip >> 4;
+ pr_debug("2.\n");
+ *((volatile unsigned short *)phys_to_virt(apic->trampoline_phys_low)) =
+ start_eip & 0xf;
+ pr_debug("3.\n");
+}
+
+static inline void smpboot_restore_warm_reset_vector(void)
+{
+ /*
+ * Install writable page 0 entry to set BIOS data area.
+ */
+ local_flush_tlb();
+
+ /*
+ * Paranoid: Set warm reset code and vector here back
+ * to default values.
+ */
+ CMOS_WRITE(0, 0xf);
+
+ *((volatile long *)phys_to_virt(apic->trampoline_phys_low)) = 0;
+}
+
+static inline void __init smpboot_setup_io_apic(void)
+{
+#ifdef CONFIG_X86_IO_APIC
+ /*
+ * Here we can be sure that there is an IO-APIC in the system. Let's
+ * go and set it up:
+ */
+ if (!skip_ioapic_setup && nr_ioapics)
+ setup_IO_APIC();
+ else {
+ nr_ioapics = 0;
+ localise_nmi_watchdog();
+ }
+#endif
+}
+
+static inline void smpboot_clear_io_apic(void)
+{
+#ifdef CONFIG_X86_IO_APIC
+ nr_ioapics = 0;
+#endif
+}
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 98807bb095a..37ba5f85b71 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -301,7 +301,7 @@ extern int (*console_blank_hook)(int);
*/
#define APM_ZERO_SEGS
-#include "apm.h"
+#include <asm/apm.h>
/*
* Define to re-initialize the interrupt 0 timer to 100 Hz after a suspend.
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index a0b91aac72a..65efd42454b 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -688,7 +688,7 @@ ENDPROC(name)
#define BUILD_INTERRUPT(name, nr) BUILD_INTERRUPT3(name, nr, smp_##name)
/* The include is where all of the SMP etc. interrupts come from */
-#include "entry_arch.h"
+#include <asm/entry_arch.h>
ENTRY(coprocessor_error)
RING0_INT_FRAME
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index 23b6d9e6e4f..bdfad80c3cf 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -34,7 +34,7 @@
#include <asm/mce.h>
-#include <mach_traps.h>
+#include <asm/mach_traps.h>
int unknown_nmi_panic;
int nmi_watchdog_enabled;
diff --git a/arch/x86/kernel/probe_roms_32.c b/arch/x86/kernel/probe_roms_32.c
index 675a48c404a..071e7fea42e 100644
--- a/arch/x86/kernel/probe_roms_32.c
+++ b/arch/x86/kernel/probe_roms_32.c
@@ -18,7 +18,7 @@
#include <asm/setup.h>
#include <asm/sections.h>
#include <asm/io.h>
-#include <setup_arch.h>
+#include <asm/setup_arch.h>
static struct resource system_rom_resource = {
.name = "System ROM",
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 92e42939fb0..e645d4793e4 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -81,7 +81,7 @@
#include <asm/io_apic.h>
#include <asm/ist.h>
#include <asm/vmi.h>
-#include <setup_arch.h>
+#include <asm/setup_arch.h>
#include <asm/bios_ebda.h>
#include <asm/cacheflush.h>
#include <asm/processor.h>
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 489fde9d947..e90b3e50b54 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -66,7 +66,7 @@
#include <linux/mc146818rtc.h>
#include <asm/genapic.h>
-#include <smpboot_hooks.h>
+#include <asm/smpboot_hooks.h>
#ifdef CONFIG_X86_32
u8 apicid_2_node[MAX_APICID];
diff --git a/arch/x86/kernel/time_32.c b/arch/x86/kernel/time_32.c
index 3985cac0ed4..764c74e871f 100644
--- a/arch/x86/kernel/time_32.c
+++ b/arch/x86/kernel/time_32.c
@@ -38,7 +38,7 @@
#include <asm/time.h>
#include <asm/timer.h>
-#include "do_timer.h"
+#include <asm/do_timer.h>
int timer_ack;
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index ed5aee5f3fc..214bc327a0c 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -54,7 +54,7 @@
#include <asm/desc.h>
#include <asm/i387.h>
-#include <mach_traps.h>
+#include <asm/mach_traps.h>
#ifdef CONFIG_X86_64
#include <asm/pgalloc.h>
diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c
index b82cae970df..1c975cc9839 100644
--- a/arch/x86/pci/pcbios.c
+++ b/arch/x86/pci/pcbios.c
@@ -7,7 +7,7 @@
#include <linux/module.h>
#include <linux/uaccess.h>
#include <asm/pci_x86.h>
-#include <asm/mach-default/pci-functions.h>
+#include <asm/pci-functions.h>
/* BIOS32 signature: "_32_" */
#define BIOS32_SIGNATURE (('_' << 0) + ('3' << 8) + ('2' << 16) + ('_' << 24))
diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index e1129fad96d..ee19b6e8fcb 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -143,7 +143,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_LE,
#endif
#ifndef CONFIG_X86_64
-#include "mach_timer.h"
+#include <asm/mach_timer.h>
#define PMTMR_EXPECTED_RATE \
((CALIBRATE_LATCH * (PMTMR_TICKS_PER_SEC >> 10)) / (CLOCK_TICK_RATE>>10))
/*
diff --git a/drivers/clocksource/cyclone.c b/drivers/clocksource/cyclone.c
index 1bde303b970..8615059a872 100644
--- a/drivers/clocksource/cyclone.c
+++ b/drivers/clocksource/cyclone.c
@@ -7,7 +7,7 @@
#include <asm/pgtable.h>
#include <asm/io.h>
-#include "mach_timer.h"
+#include <asm/mach_timer.h>
#define CYCLONE_CBAR_ADDR 0xFEB00CD0 /* base address ptr */
#define CYCLONE_PMCC_OFFSET 0x51A0 /* offset to control register */
--
cgit v1.2.3-70-g09d2
From aa78bcfa01dec3cdbde3cda098ce32abbd9c3bf6 Mon Sep 17 00:00:00 2001
From: Brian Gerst <brgerst@gmail.com>
Date: Tue, 10 Feb 2009 09:51:45 -0500
Subject: x86: use pt_regs pointer in do_device_not_available()
The generic exception handler (error_code) passes in the pt_regs
pointer and the error code (unused in this case). The commit
"x86: fix math_emu register frame access" changed this to pass by
value, which doesn't work correctly with stack protector enabled.
Change it back to use the pt_regs pointer.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/include/asm/traps.h | 2 +-
arch/x86/kernel/traps.c | 9 +++++----
2 files changed, 6 insertions(+), 5 deletions(-)
(limited to 'arch/x86/kernel/traps.c')
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index cf3bb053da0..0d5342515b8 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -41,7 +41,7 @@ dotraplinkage void do_int3(struct pt_regs *, long);
dotraplinkage void do_overflow(struct pt_regs *, long);
dotraplinkage void do_bounds(struct pt_regs *, long);
dotraplinkage void do_invalid_op(struct pt_regs *, long);
-dotraplinkage void do_device_not_available(struct pt_regs);
+dotraplinkage void do_device_not_available(struct pt_regs *, long);
dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
dotraplinkage void do_segment_not_present(struct pt_regs *, long);
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 3b7b2e19020..71a8f871331 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -905,19 +905,20 @@ void math_emulate(struct math_emu_info *info)
}
#endif /* CONFIG_MATH_EMULATION */
-dotraplinkage void __kprobes do_device_not_available(struct pt_regs regs)
+dotraplinkage void __kprobes
+do_device_not_available(struct pt_regs *regs, long error_code)
{
#ifdef CONFIG_X86_32
if (read_cr0() & X86_CR0_EM) {
struct math_emu_info info = { };
- conditional_sti(®s);
+ conditional_sti(regs);
- info.regs = ®s;
+ info.regs = regs;
math_emulate(&info);
} else {
math_state_restore(); /* interrupts still off */
- conditional_sti(®s);
+ conditional_sti(regs);
}
#else
math_state_restore();
--
cgit v1.2.3-70-g09d2
From fc6fcdfbb8f1b2553255170f221cd57a4108591f Mon Sep 17 00:00:00 2001
From: Hannes Eder <hannes@hanneseder.net>
Date: Sun, 22 Feb 2009 01:00:57 +0100
Subject: x86: kexec/i386: fix sparse warnings: Using plain integer as NULL
pointer
Fix these sparse warnings:
arch/x86/kernel/machine_kexec_32.c:124:22: warning: Using plain integer as NULL pointer
arch/x86/kernel/traps.c:950:24: warning: Using plain integer as NULL pointer
Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Cc: trivial@kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/kernel/machine_kexec_32.c | 2 +-
arch/x86/kernel/traps.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
(limited to 'arch/x86/kernel/traps.c')
diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
index 37f420018a4..f5fc8c781a6 100644
--- a/arch/x86/kernel/machine_kexec_32.c
+++ b/arch/x86/kernel/machine_kexec_32.c
@@ -121,7 +121,7 @@ static void machine_kexec_page_table_set_one(
static void machine_kexec_prepare_page_tables(struct kimage *image)
{
void *control_page;
- pmd_t *pmd = 0;
+ pmd_t *pmd = NULL;
control_page = page_address(image->control_code_page);
#ifdef CONFIG_X86_PAE
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index acb8c0585ab..2df927b5003 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -942,7 +942,7 @@ dotraplinkage void do_iret_error(struct pt_regs *regs, long error_code)
info.si_signo = SIGILL;
info.si_errno = 0;
info.si_code = ILL_BADSTK;
- info.si_addr = 0;
+ info.si_addr = NULL;
if (notify_die(DIE_TRAP, "iret exception",
regs, error_code, 32, SIGILL) == NOTIFY_STOP)
return;
--
cgit v1.2.3-70-g09d2
From 8e6dafd6c741cd4679b4de3c5d9698851e4fa59c Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Mon, 23 Feb 2009 00:34:39 +0100
Subject: x86: refactor x86_quirks support
Impact: cleanup
Make x86_quirks support more transparent. The highlevel
methods are now named:
extern void x86_quirk_pre_intr_init(void);
extern void x86_quirk_intr_init(void);
extern void x86_quirk_trap_init(void);
extern void x86_quirk_pre_time_init(void);
extern void x86_quirk_time_init(void);
This makes it clear that if some platform extension has to
do something here that it is considered ... weird, and is
discouraged.
Also remove arch_hooks.h and move it into setup.h (and other
header files where appropriate).
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/include/asm/arch_hooks.h | 26 --------------------------
arch/x86/include/asm/i8259.h | 4 ++++
arch/x86/include/asm/setup.h | 9 +++++++++
arch/x86/include/asm/timer.h | 2 ++
arch/x86/kernel/apic/apic.c | 1 -
arch/x86/kernel/apic/probe_32.c | 1 -
arch/x86/kernel/i8259.c | 1 -
arch/x86/kernel/irqinit_32.c | 13 +++++++------
arch/x86/kernel/kvmclock.c | 1 -
arch/x86/kernel/mca_32.c | 1 -
arch/x86/kernel/paravirt.c | 1 -
arch/x86/kernel/setup.c | 23 ++++++++++++-----------
arch/x86/kernel/time_32.c | 6 +++---
arch/x86/kernel/traps.c | 4 ++--
arch/x86/kernel/visws_quirks.c | 1 -
arch/x86/kernel/vmiclock_32.c | 1 -
16 files changed, 39 insertions(+), 56 deletions(-)
delete mode 100644 arch/x86/include/asm/arch_hooks.h
(limited to 'arch/x86/kernel/traps.c')
diff --git a/arch/x86/include/asm/arch_hooks.h b/arch/x86/include/asm/arch_hooks.h
deleted file mode 100644
index 54248172be1..00000000000
--- a/arch/x86/include/asm/arch_hooks.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef _ASM_X86_ARCH_HOOKS_H
-#define _ASM_X86_ARCH_HOOKS_H
-
-#include <linux/interrupt.h>
-
-/*
- * linux/include/asm/arch_hooks.h
- *
- * define the architecture specific hooks
- */
-
-/* these aren't arch hooks, they are generic routines
- * that can be used by the hooks */
-extern void init_ISA_irqs(void);
-extern irqreturn_t timer_interrupt(int irq, void *dev_id);
-
-/* these are the defined hooks */
-extern void pre_intr_init_hook(void);
-extern void intr_init_hook(void);
-
-extern void trap_init_hook(void);
-
-extern void pre_time_init_hook(void);
-extern void time_init_hook(void);
-
-#endif /* _ASM_X86_ARCH_HOOKS_H */
diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h
index 58d7091eeb1..1a99e6c092a 100644
--- a/arch/x86/include/asm/i8259.h
+++ b/arch/x86/include/asm/i8259.h
@@ -60,4 +60,8 @@ extern struct irq_chip i8259A_chip;
extern void mask_8259A(void);
extern void unmask_8259A(void);
+#ifdef CONFIG_X86_32
+extern void init_ISA_irqs(void);
+#endif
+
#endif /* _ASM_X86_I8259_H */
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index 8029369cd6f..66801cb72f6 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -13,6 +13,7 @@
struct mpc_cpu;
struct mpc_bus;
struct mpc_oemtable;
+
struct x86_quirks {
int (*arch_pre_time_init)(void);
int (*arch_time_init)(void);
@@ -33,6 +34,14 @@ struct x86_quirks {
int (*update_apic)(void);
};
+extern void x86_quirk_pre_intr_init(void);
+extern void x86_quirk_intr_init(void);
+
+extern void x86_quirk_trap_init(void);
+
+extern void x86_quirk_pre_time_init(void);
+extern void x86_quirk_time_init(void);
+
#endif /* __ASSEMBLY__ */
#ifdef __i386__
diff --git a/arch/x86/include/asm/timer.h b/arch/x86/include/asm/timer.h
index 2bb6a835c45..a81195eaa2b 100644
--- a/arch/x86/include/asm/timer.h
+++ b/arch/x86/include/asm/timer.h
@@ -3,6 +3,7 @@
#include <linux/init.h>
#include <linux/pm.h>
#include <linux/percpu.h>
+#include <linux/interrupt.h>
#define TICK_SIZE (tick_nsec / 1000)
@@ -12,6 +13,7 @@ unsigned long native_calibrate_tsc(void);
#ifdef CONFIG_X86_32
extern int timer_ack;
extern int recalibrate_cpu_khz(void);
+extern irqreturn_t timer_interrupt(int irq, void *dev_id);
#endif /* CONFIG_X86_32 */
extern int no_timer_check;
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index c6bd7710585..f9cecdfd05c 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -34,7 +34,6 @@
#include <linux/smp.h>
#include <linux/mm.h>
-#include <asm/arch_hooks.h>
#include <asm/pgalloc.h>
#include <asm/atomic.h>
#include <asm/mpspec.h>
diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
index c9ec90742e9..3a730fa574b 100644
--- a/arch/x86/kernel/apic/probe_32.c
+++ b/arch/x86/kernel/apic/probe_32.c
@@ -35,7 +35,6 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/acpi.h>
-#include <asm/arch_hooks.h>
#include <asm/e820.h>
#include <asm/setup.h>
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index 11d5093eb28..df89102bef8 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -22,7 +22,6 @@
#include <asm/pgtable.h>
#include <asm/desc.h>
#include <asm/apic.h>
-#include <asm/arch_hooks.h>
#include <asm/i8259.h>
/*
diff --git a/arch/x86/kernel/irqinit_32.c b/arch/x86/kernel/irqinit_32.c
index bf629cadec1..50b8c3a3006 100644
--- a/arch/x86/kernel/irqinit_32.c
+++ b/arch/x86/kernel/irqinit_32.c
@@ -18,7 +18,7 @@
#include <asm/pgtable.h>
#include <asm/desc.h>
#include <asm/apic.h>
-#include <asm/arch_hooks.h>
+#include <asm/setup.h>
#include <asm/i8259.h>
#include <asm/traps.h>
@@ -127,8 +127,8 @@ void __init native_init_IRQ(void)
{
int i;
- /* all the set up before the call gates are initialised */
- pre_intr_init_hook();
+ /* Execute any quirks before the call gates are initialised: */
+ x86_quirk_pre_intr_init();
/*
* Cover the whole vector space, no vector can escape
@@ -188,10 +188,11 @@ void __init native_init_IRQ(void)
if (!acpi_ioapic)
setup_irq(2, &irq2);
- /* setup after call gates are initialised (usually add in
- * the architecture specific gates)
+ /*
+ * Call quirks after call gates are initialised (usually add in
+ * the architecture specific gates):
*/
- intr_init_hook();
+ x86_quirk_intr_init();
/*
* External FPU? Set up irq13 if so, for
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 652fce6d2cc..137f2e8132d 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -19,7 +19,6 @@
#include <linux/clocksource.h>
#include <linux/kvm_para.h>
#include <asm/pvclock.h>
-#include <asm/arch_hooks.h>
#include <asm/msr.h>
#include <asm/apic.h>
#include <linux/percpu.h>
diff --git a/arch/x86/kernel/mca_32.c b/arch/x86/kernel/mca_32.c
index f74eef52ab5..845d80ce1ef 100644
--- a/arch/x86/kernel/mca_32.c
+++ b/arch/x86/kernel/mca_32.c
@@ -51,7 +51,6 @@
#include <linux/ioport.h>
#include <asm/uaccess.h>
#include <linux/init.h>
-#include <asm/arch_hooks.h>
static unsigned char which_scsi;
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 6dc4dca255e..63dd358d8ee 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -28,7 +28,6 @@
#include <asm/paravirt.h>
#include <asm/desc.h>
#include <asm/setup.h>
-#include <asm/arch_hooks.h>
#include <asm/pgtable.h>
#include <asm/time.h>
#include <asm/pgalloc.h>
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index d4de1e4c204..5b85759e797 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -74,8 +74,9 @@
#include <asm/e820.h>
#include <asm/mpspec.h>
#include <asm/setup.h>
-#include <asm/arch_hooks.h>
#include <asm/efi.h>
+#include <asm/timer.h>
+#include <asm/i8259.h>
#include <asm/sections.h>
#include <asm/dmi.h>
#include <asm/io_apic.h>
@@ -987,7 +988,7 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_X86_32
/**
- * pre_intr_init_hook - initialisation prior to setting up interrupt vectors
+ * x86_quirk_pre_intr_init - initialisation prior to setting up interrupt vectors
*
* Description:
* Perform any necessary interrupt initialisation prior to setting up
@@ -995,7 +996,7 @@ void __init setup_arch(char **cmdline_p)
* interrupts should be initialised here if the machine emulates a PC
* in any way.
**/
-void __init pre_intr_init_hook(void)
+void __init x86_quirk_pre_intr_init(void)
{
if (x86_quirks->arch_pre_intr_init) {
if (x86_quirks->arch_pre_intr_init())
@@ -1005,7 +1006,7 @@ void __init pre_intr_init_hook(void)
}
/**
- * intr_init_hook - post gate setup interrupt initialisation
+ * x86_quirk_intr_init - post gate setup interrupt initialisation
*
* Description:
* Fill in any interrupts that may have been left out by the general
@@ -1013,7 +1014,7 @@ void __init pre_intr_init_hook(void)
* than the devices on the I/O bus (like APIC interrupts in intel MP
* systems) are started here.
**/
-void __init intr_init_hook(void)
+void __init x86_quirk_intr_init(void)
{
if (x86_quirks->arch_intr_init) {
if (x86_quirks->arch_intr_init())
@@ -1022,13 +1023,13 @@ void __init intr_init_hook(void)
}
/**
- * trap_init_hook - initialise system specific traps
+ * x86_quirk_trap_init - initialise system specific traps
*
* Description:
* Called as the final act of trap_init(). Used in VISWS to initialise
* the various board specific APIC traps.
**/
-void __init trap_init_hook(void)
+void __init x86_quirk_trap_init(void)
{
if (x86_quirks->arch_trap_init) {
if (x86_quirks->arch_trap_init())
@@ -1044,23 +1045,23 @@ static struct irqaction irq0 = {
};
/**
- * pre_time_init_hook - do any specific initialisations before.
+ * x86_quirk_pre_time_init - do any specific initialisations before.
*
**/
-void __init pre_time_init_hook(void)
+void __init x86_quirk_pre_time_init(void)
{
if (x86_quirks->arch_pre_time_init)
x86_quirks->arch_pre_time_init();
}
/**
- * time_init_hook - do any specific initialisations for the system timer.
+ * x86_quirk_time_init - do any specific initialisations for the system timer.
*
* Description:
* Must plug the system timer interrupt source at HZ into the IRQ listed
* in irq_vectors.h:TIMER_IRQ
**/
-void __init time_init_hook(void)
+void __init x86_quirk_time_init(void)
{
if (x86_quirks->arch_time_init) {
/*
diff --git a/arch/x86/kernel/time_32.c b/arch/x86/kernel/time_32.c
index 764c74e871f..5c5d87f0b2e 100644
--- a/arch/x86/kernel/time_32.c
+++ b/arch/x86/kernel/time_32.c
@@ -33,7 +33,7 @@
#include <linux/time.h>
#include <linux/mca.h>
-#include <asm/arch_hooks.h>
+#include <asm/setup.h>
#include <asm/hpet.h>
#include <asm/time.h>
#include <asm/timer.h>
@@ -118,7 +118,7 @@ void __init hpet_time_init(void)
{
if (!hpet_enable())
setup_pit_timer();
- time_init_hook();
+ x86_quirk_time_init();
}
/*
@@ -131,7 +131,7 @@ void __init hpet_time_init(void)
*/
void __init time_init(void)
{
- pre_time_init_hook();
+ x86_quirk_pre_time_init();
tsc_init();
late_time_init = choose_time_init();
}
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index acb8c0585ab..c8c0a7e530b 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -61,7 +61,7 @@
#include <asm/proto.h>
#else
#include <asm/processor-flags.h>
-#include <asm/arch_hooks.h>
+#include <asm/setup.h>
#include <asm/traps.h>
#include "cpu/mcheck/mce.h"
@@ -1026,6 +1026,6 @@ void __init trap_init(void)
cpu_init();
#ifdef CONFIG_X86_32
- trap_init_hook();
+ x86_quirk_trap_init();
#endif
}
diff --git a/arch/x86/kernel/visws_quirks.c b/arch/x86/kernel/visws_quirks.c
index 34199d30ff4..191a876e9e8 100644
--- a/arch/x86/kernel/visws_quirks.c
+++ b/arch/x86/kernel/visws_quirks.c
@@ -24,7 +24,6 @@
#include <asm/visws/cobalt.h>
#include <asm/visws/piix4.h>
-#include <asm/arch_hooks.h>
#include <asm/io_apic.h>
#include <asm/fixmap.h>
#include <asm/reboot.h>
diff --git a/arch/x86/kernel/vmiclock_32.c b/arch/x86/kernel/vmiclock_32.c
index 8c48b465059..49b4cd6707f 100644
--- a/arch/x86/kernel/vmiclock_32.c
+++ b/arch/x86/kernel/vmiclock_32.c
@@ -28,7 +28,6 @@
#include <asm/vmi.h>
#include <asm/vmi_time.h>
-#include <asm/arch_hooks.h>
#include <asm/apicdef.h>
#include <asm/apic.h>
#include <asm/timer.h>
--
cgit v1.2.3-70-g09d2
From db949bba3c7cf2e664ac12e237c6d4c914f0c69d Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Fri, 27 Feb 2009 13:25:21 -0800
Subject: x86-32: use non-lazy io bitmap context switching
Impact: remove 32-bit optimization to prepare unification
x86-32 and -64 differ in the way they context-switch tasks
with io permission bitmaps. x86-64 simply copies the next
tasks io bitmap into place (if any) on context switch. x86-32
invalidates the bitmap on context switch, so that the next
IO instruction will fault; at that point it installs the
appropriate IO bitmap.
This makes context switching IO-bitmap-using tasks a bit more
less expensive, at the cost of making the next IO instruction
slower due to the extra fault. This tradeoff only makes sense
if IO-bitmap-using processes are relatively common, but they
don't actually use IO instructions very often.
However, in a typical desktop system, the only process likely
to be using IO bitmaps is the X server, and nothing at all on
a server. Therefore the lazy context switch doesn't really win
all that much, and its just a gratuitious difference from
64-bit code.
This patch removes the lazy context switch, with a view to
unifying this code in a later change.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/include/asm/processor.h | 6 ------
arch/x86/kernel/ioport.c | 11 ----------
arch/x86/kernel/process_32.c | 36 ++++++++-----------------------
arch/x86/kernel/traps.c | 46 ----------------------------------------
4 files changed, 9 insertions(+), 90 deletions(-)
(limited to 'arch/x86/kernel/traps.c')
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index c7a98f73821..76139506c3e 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -248,7 +248,6 @@ struct x86_hw_tss {
#define IO_BITMAP_LONGS (IO_BITMAP_BYTES/sizeof(long))
#define IO_BITMAP_OFFSET offsetof(struct tss_struct, io_bitmap)
#define INVALID_IO_BITMAP_OFFSET 0x8000
-#define INVALID_IO_BITMAP_OFFSET_LAZY 0x9000
struct tss_struct {
/*
@@ -263,11 +262,6 @@ struct tss_struct {
* be within the limit.
*/
unsigned long io_bitmap[IO_BITMAP_LONGS + 1];
- /*
- * Cache the current maximum and the last task that used the bitmap:
- */
- unsigned long io_bitmap_max;
- struct thread_struct *io_bitmap_owner;
/*
* .. and then another 0x100 bytes for the emergency kernel stack:
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index e41980a373a..99c4d308f16 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -85,19 +85,8 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
t->io_bitmap_max = bytes;
-#ifdef CONFIG_X86_32
- /*
- * Sets the lazy trigger so that the next I/O operation will
- * reload the correct bitmap.
- * Reset the owner so that a process switch will not set
- * tss->io_bitmap_base to IO_BITMAP_OFFSET.
- */
- tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY;
- tss->io_bitmap_owner = NULL;
-#else
/* Update the TSS: */
memcpy(tss->io_bitmap, t->io_bitmap_ptr, bytes_updated);
-#endif
put_cpu();
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 646da41a620..a59314e877f 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -248,11 +248,8 @@ void exit_thread(void)
/*
* Careful, clear this in the TSS too:
*/
- memset(tss->io_bitmap, 0xff, tss->io_bitmap_max);
+ memset(tss->io_bitmap, 0xff, t->io_bitmap_max);
t->io_bitmap_max = 0;
- tss->io_bitmap_owner = NULL;
- tss->io_bitmap_max = 0;
- tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET;
put_cpu();
}
@@ -458,34 +455,19 @@ __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
hard_enable_TSC();
}
- if (!test_tsk_thread_flag(next_p, TIF_IO_BITMAP)) {
+ if (test_tsk_thread_flag(next_p, TIF_IO_BITMAP)) {
/*
- * Disable the bitmap via an invalid offset. We still cache
- * the previous bitmap owner and the IO bitmap contents:
+ * Copy the relevant range of the IO bitmap.
+ * Normally this is 128 bytes or less:
*/
- tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET;
- return;
- }
-
- if (likely(next == tss->io_bitmap_owner)) {
+ memcpy(tss->io_bitmap, next->io_bitmap_ptr,
+ max(prev->io_bitmap_max, next->io_bitmap_max));
+ } else if (test_tsk_thread_flag(prev_p, TIF_IO_BITMAP)) {
/*
- * Previous owner of the bitmap (hence the bitmap content)
- * matches the next task, we dont have to do anything but
- * to set a valid offset in the TSS:
+ * Clear any possible leftover bits:
*/
- tss->x86_tss.io_bitmap_base = IO_BITMAP_OFFSET;
- return;
+ memset(tss->io_bitmap, 0xff, prev->io_bitmap_max);
}
- /*
- * Lazy TSS's I/O bitmap copy. We set an invalid offset here
- * and we let the task to get a GPF in case an I/O instruction
- * is performed. The handler of the GPF will verify that the
- * faulting task has a valid I/O bitmap and, it true, does the
- * real copy and restart the instruction. This will save us
- * redundant copies when the currently switched task does not
- * perform any I/O during its timeslice.
- */
- tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY;
}
/*
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index c05430ac1b4..a1d288327ff 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -118,47 +118,6 @@ die_if_kernel(const char *str, struct pt_regs *regs, long err)
if (!user_mode_vm(regs))
die(str, regs, err);
}
-
-/*
- * Perform the lazy TSS's I/O bitmap copy. If the TSS has an
- * invalid offset set (the LAZY one) and the faulting thread has
- * a valid I/O bitmap pointer, we copy the I/O bitmap in the TSS,
- * we set the offset field correctly and return 1.
- */
-static int lazy_iobitmap_copy(void)
-{
- struct thread_struct *thread;
- struct tss_struct *tss;
- int cpu;
-
- cpu = get_cpu();
- tss = &per_cpu(init_tss, cpu);
- thread = ¤t->thread;
-
- if (tss->x86_tss.io_bitmap_base == INVALID_IO_BITMAP_OFFSET_LAZY &&
- thread->io_bitmap_ptr) {
- memcpy(tss->io_bitmap, thread->io_bitmap_ptr,
- thread->io_bitmap_max);
- /*
- * If the previously set map was extending to higher ports
- * than the current one, pad extra space with 0xff (no access).
- */
- if (thread->io_bitmap_max < tss->io_bitmap_max) {
- memset((char *) tss->io_bitmap +
- thread->io_bitmap_max, 0xff,
- tss->io_bitmap_max - thread->io_bitmap_max);
- }
- tss->io_bitmap_max = thread->io_bitmap_max;
- tss->x86_tss.io_bitmap_base = IO_BITMAP_OFFSET;
- tss->io_bitmap_owner = thread;
- put_cpu();
-
- return 1;
- }
- put_cpu();
-
- return 0;
-}
#endif
static void __kprobes
@@ -309,11 +268,6 @@ do_general_protection(struct pt_regs *regs, long error_code)
conditional_sti(regs);
#ifdef CONFIG_X86_32
- if (lazy_iobitmap_copy()) {
- /* restart the faulting instruction */
- return;
- }
-
if (regs->flags & X86_VM_MASK)
goto gp_in_vm86;
#endif
--
cgit v1.2.3-70-g09d2