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-rw-r--r--arch/x86/kernel/apic/apic.c31
-rw-r--r--arch/x86/kernel/apic/io_apic.c4
-rw-r--r--arch/x86/kernel/apic/probe_64.c15
-rw-r--r--arch/x86/kernel/apic/x2apic_uv_x.c11
-rw-r--r--arch/x86/kernel/cpu/common.c1
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce_amd.c3
-rw-r--r--arch/x86/kernel/cpu/mtrr/if.c12
-rw-r--r--arch/x86/kernel/early_printk.c2
-rw-r--r--arch/x86/kernel/setup.c30
-rw-r--r--arch/x86/kernel/trampoline.c4
-rw-r--r--arch/x86/kernel/trampoline_32.S8
-rw-r--r--arch/x86/kernel/trampoline_64.S5
-rw-r--r--arch/x86/kernel/tsc.c2
-rw-r--r--arch/x86/kernel/vmlinux.lds.S4
14 files changed, 68 insertions, 64 deletions
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index a34601f5298..a58ef98be15 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -62,7 +62,7 @@ unsigned int boot_cpu_physical_apicid = -1U;
/*
* The highest APIC ID seen during enumeration.
*
- * This determines the messaging protocol we can use: if all APIC IDs
+ * On AMD, this determines the messaging protocol we can use: if all APIC IDs
* are in the 0 ... 7 range, then we can use logical addressing which
* has some performance advantages (better broadcasting).
*
@@ -979,7 +979,7 @@ void lapic_shutdown(void)
{
unsigned long flags;
- if (!cpu_has_apic)
+ if (!cpu_has_apic && !apic_from_smp_config())
return;
local_irq_save(flags);
@@ -1197,8 +1197,7 @@ void __cpuinit setup_local_APIC(void)
* Double-check whether this APIC is really registered.
* This is meaningless in clustered apic mode, so we skip it.
*/
- if (!apic->apic_id_registered())
- BUG();
+ BUG_ON(!apic->apic_id_registered());
/*
* Intel recommends to set DFR, LDR and TPR before enabling
@@ -1917,24 +1916,14 @@ void __cpuinit generic_processor_info(int apicid, int version)
max_physical_apicid = apicid;
#ifdef CONFIG_X86_32
- /*
- * Would be preferable to switch to bigsmp when CONFIG_HOTPLUG_CPU=y
- * but we need to work other dependencies like SMP_SUSPEND etc
- * before this can be done without some confusion.
- * if (CPU_HOTPLUG_ENABLED || num_processors > 8)
- * - Ashok Raj <ashok.raj@intel.com>
- */
- if (max_physical_apicid >= 8) {
- switch (boot_cpu_data.x86_vendor) {
- case X86_VENDOR_INTEL:
- if (!APIC_XAPIC(version)) {
- def_to_bigsmp = 0;
- break;
- }
- /* If P4 and above fall through */
- case X86_VENDOR_AMD:
+ switch (boot_cpu_data.x86_vendor) {
+ case X86_VENDOR_INTEL:
+ if (num_processors > 8)
+ def_to_bigsmp = 1;
+ break;
+ case X86_VENDOR_AMD:
+ if (max_physical_apicid >= 8)
def_to_bigsmp = 1;
- }
}
#endif
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 809e1cf86d6..64970b9885f 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1874,7 +1874,7 @@ __apicdebuginit(int) print_all_ICs(void)
print_PIC();
/* don't print out if apic is not there */
- if (!cpu_has_apic || disable_apic)
+ if (!cpu_has_apic && !apic_from_smp_config())
return 0;
print_all_local_APICs();
@@ -1999,7 +1999,7 @@ void disable_IO_APIC(void)
/*
* Use virtual wire A mode when interrupt remapping is enabled.
*/
- if (cpu_has_apic)
+ if (cpu_has_apic || apic_from_smp_config())
disconnect_bsp_APIC(!intr_remapping_enabled &&
ioapic_i8259.pin != -1);
}
diff --git a/arch/x86/kernel/apic/probe_64.c b/arch/x86/kernel/apic/probe_64.c
index 65edc180fc8..c4cbd3080c1 100644
--- a/arch/x86/kernel/apic/probe_64.c
+++ b/arch/x86/kernel/apic/probe_64.c
@@ -64,16 +64,23 @@ void __init default_setup_apic_routing(void)
apic = &apic_x2apic_phys;
else
apic = &apic_x2apic_cluster;
- printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
}
#endif
if (apic == &apic_flat) {
- if (max_physical_apicid >= 8)
- apic = &apic_physflat;
- printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
+ switch (boot_cpu_data.x86_vendor) {
+ case X86_VENDOR_INTEL:
+ if (num_processors > 8)
+ apic = &apic_physflat;
+ break;
+ case X86_VENDOR_AMD:
+ if (max_physical_apicid >= 8)
+ apic = &apic_physflat;
+ }
}
+ printk(KERN_INFO "Setting APIC routing to %s\n", apic->name);
+
if (is_vsmp_box()) {
/* need to update phys_pkg_id */
apic->phys_pkg_id = apicid_phys_pkg_id;
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 601159374e8..f5f5886a6b5 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -389,6 +389,16 @@ static __init void map_gru_high(int max_pnode)
map_high("GRU", gru.s.base, shift, max_pnode, map_wb);
}
+static __init void map_mmr_high(int max_pnode)
+{
+ union uvh_rh_gam_mmr_overlay_config_mmr_u mmr;
+ int shift = UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_BASE_SHFT;
+
+ mmr.v = uv_read_local_mmr(UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR);
+ if (mmr.s.enable)
+ map_high("MMR", mmr.s.base, shift, max_pnode, map_uc);
+}
+
static __init void map_mmioh_high(int max_pnode)
{
union uvh_rh_gam_mmioh_overlay_config_mmr_u mmioh;
@@ -643,6 +653,7 @@ void __init uv_system_init(void)
}
map_gru_high(max_pnode);
+ map_mmr_high(max_pnode);
map_mmioh_high(max_pnode);
uv_cpu_init();
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 2055fc2b2e6..2fea97eccf7 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -34,7 +34,6 @@
#include <asm/mce.h>
#include <asm/msr.h>
#include <asm/pat.h>
-#include <linux/smp.h>
#ifdef CONFIG_X86_LOCAL_APIC
#include <asm/uv/uv.h>
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index 8cd5224943b..83a3d1f4efc 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -489,8 +489,9 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
int i, err = 0;
struct threshold_bank *b = NULL;
char name[32];
+#ifdef CONFIG_SMP
struct cpuinfo_x86 *c = &cpu_data(cpu);
-
+#endif
sprintf(name, "threshold_bank%i", bank);
diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c
index 08b6ea4c62b..f04e7252760 100644
--- a/arch/x86/kernel/cpu/mtrr/if.c
+++ b/arch/x86/kernel/cpu/mtrr/if.c
@@ -126,8 +126,8 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
return -EINVAL;
base = simple_strtoull(line + 5, &ptr, 0);
- for (; isspace(*ptr); ++ptr)
- ;
+ while (isspace(*ptr))
+ ptr++;
if (strncmp(ptr, "size=", 5))
return -EINVAL;
@@ -135,14 +135,14 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
size = simple_strtoull(ptr + 5, &ptr, 0);
if ((base & 0xfff) || (size & 0xfff))
return -EINVAL;
- for (; isspace(*ptr); ++ptr)
- ;
+ while (isspace(*ptr))
+ ptr++;
if (strncmp(ptr, "type=", 5))
return -EINVAL;
ptr += 5;
- for (; isspace(*ptr); ++ptr)
- ;
+ while (isspace(*ptr))
+ ptr++;
for (i = 0; i < MTRR_NUM_TYPES; ++i) {
if (strcmp(ptr, mtrr_strings[i]))
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index 335f049d110..b11cab3c323 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -624,7 +624,7 @@ try_next_port:
return -1;
}
- loop = 10;
+ loop = 100000;
/* Reset the EHCI controller */
cmd = readl(&ehci_regs->command);
cmd |= CMD_RESET;
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index a55f6609fe1..f327bccf508 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -697,21 +697,6 @@ void __init setup_arch(char **cmdline_p)
printk(KERN_INFO "Command line: %s\n", boot_command_line);
#endif
- strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
- *cmdline_p = command_line;
-
-#ifdef CONFIG_X86_64
- /*
- * Must call this twice: Once just to detect whether hardware doesn't
- * support NX (so that the early EHCI debug console setup can safely
- * call set_fixmap(), and then again after parsing early parameters to
- * honor the respective command line option.
- */
- check_efer();
-#endif
-
- parse_early_param();
-
/* VMI may relocate the fixmap; do this before touching ioremap area */
vmi_init();
@@ -794,6 +779,21 @@ void __init setup_arch(char **cmdline_p)
#endif
#endif
+ strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
+ *cmdline_p = command_line;
+
+#ifdef CONFIG_X86_64
+ /*
+ * Must call this twice: Once just to detect whether hardware doesn't
+ * support NX (so that the early EHCI debug console setup can safely
+ * call set_fixmap(), and then again after parsing early parameters to
+ * honor the respective command line option.
+ */
+ check_efer();
+#endif
+
+ parse_early_param();
+
#ifdef CONFIG_X86_64
check_efer();
#endif
diff --git a/arch/x86/kernel/trampoline.c b/arch/x86/kernel/trampoline.c
index 808031a5ba1..699f7eeb896 100644
--- a/arch/x86/kernel/trampoline.c
+++ b/arch/x86/kernel/trampoline.c
@@ -4,7 +4,7 @@
#include <asm/e820.h>
/* ready for x86_64 and x86 */
-unsigned char *trampoline_base = __va(TRAMPOLINE_BASE);
+unsigned char *__cpuinitdata trampoline_base = __va(TRAMPOLINE_BASE);
void __init reserve_trampoline_memory(void)
{
@@ -26,7 +26,7 @@ void __init reserve_trampoline_memory(void)
* bootstrap into the page concerned. The caller
* has made sure it's suitably aligned.
*/
-unsigned long setup_trampoline(void)
+unsigned long __cpuinit setup_trampoline(void)
{
memcpy(trampoline_base, trampoline_data, TRAMPOLINE_SIZE);
return virt_to_phys(trampoline_base);
diff --git a/arch/x86/kernel/trampoline_32.S b/arch/x86/kernel/trampoline_32.S
index 66d874e5404..8508237e8e4 100644
--- a/arch/x86/kernel/trampoline_32.S
+++ b/arch/x86/kernel/trampoline_32.S
@@ -28,16 +28,12 @@
*/
#include <linux/linkage.h>
+#include <linux/init.h>
#include <asm/segment.h>
#include <asm/page_types.h>
/* We can free up trampoline after bootup if cpu hotplug is not supported. */
-#ifndef CONFIG_HOTPLUG_CPU
-.section ".cpuinit.data","aw",@progbits
-#else
-.section .rodata,"a",@progbits
-#endif
-
+__CPUINITRODATA
.code16
ENTRY(trampoline_data)
diff --git a/arch/x86/kernel/trampoline_64.S b/arch/x86/kernel/trampoline_64.S
index cddfb8d386b..596d54c660a 100644
--- a/arch/x86/kernel/trampoline_64.S
+++ b/arch/x86/kernel/trampoline_64.S
@@ -25,14 +25,15 @@
*/
#include <linux/linkage.h>
+#include <linux/init.h>
#include <asm/pgtable_types.h>
#include <asm/page_types.h>
#include <asm/msr.h>
#include <asm/segment.h>
#include <asm/processor-flags.h>
-.section .rodata, "a", @progbits
-
+/* We can free up the trampoline after bootup if cpu hotplug is not supported. */
+__CPUINITRODATA
.code16
ENTRY(trampoline_data)
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 17409e8d109..cd982f48e23 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -666,7 +666,7 @@ static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) ||
(val == CPUFREQ_POSTCHANGE && freq->old > freq->new) ||
(val == CPUFREQ_RESUMECHANGE)) {
- *lpj = cpufreq_scale(loops_per_jiffy_ref, ref_freq, freq->new);
+ *lpj = cpufreq_scale(loops_per_jiffy_ref, ref_freq, freq->new);
tsc_khz = cpufreq_scale(tsc_khz_ref, ref_freq, freq->new);
if (!(freq->flags & CPUFREQ_CONST_LOOPS))
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 0ccb57d5ee3..a46acccec38 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -45,9 +45,9 @@ PHDRS {
text PT_LOAD FLAGS(5); /* R_E */
data PT_LOAD FLAGS(7); /* RWE */
#ifdef CONFIG_X86_64
- user PT_LOAD FLAGS(7); /* RWE */
+ user PT_LOAD FLAGS(5); /* R_E */
#ifdef CONFIG_SMP
- percpu PT_LOAD FLAGS(7); /* RWE */
+ percpu PT_LOAD FLAGS(6); /* RW_ */
#endif
init PT_LOAD FLAGS(7); /* RWE */
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 11:05:41 +0000