The patch titled
x86-64: reduce boot fixmap space
has been added to the -mm tree. Its filename is
x86-64-reduce-boot-fixmap-space.patch
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------------------------------------------------------
Subject: x86-64: reduce boot fixmap space
From: Jan Beulich <jbeulich@xxxxxxxxxx>
Just like for 32-bit - as 256 entries are needed, aligning to a 256-entry
boundary is sufficient and still guarantees the single pte table
requirement.
Likewise move up __end_of_permanent_fixed_addresses, to match 32-bit.
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/asm-x86/fixmap_64.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff -puN include/asm-x86/fixmap_64.h~x86-64-reduce-boot-fixmap-space include/asm-x86/fixmap_64.h
--- a/include/asm-x86/fixmap_64.h~x86-64-reduce-boot-fixmap-space
+++ a/include/asm-x86/fixmap_64.h
@@ -49,6 +49,7 @@ enum fixed_addresses {
#ifdef CONFIG_PARAVIRT
FIX_PARAVIRT_BOOTMAP,
#endif
+ __end_of_permanent_fixed_addresses,
#ifdef CONFIG_ACPI
FIX_ACPI_BEGIN,
FIX_ACPI_END = FIX_ACPI_BEGIN + FIX_ACPI_PAGES - 1,
@@ -56,18 +57,17 @@ enum fixed_addresses {
#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
FIX_OHCI1394_BASE,
#endif
- __end_of_permanent_fixed_addresses,
/*
* 256 temporary boot-time mappings, used by early_ioremap(),
* before ioremap() is functional.
*
- * We round it up to the next 512 pages boundary so that we
+ * We round it up to the next 256 pages boundary so that we
* can have a single pgd entry and a single pte table:
*/
#define NR_FIX_BTMAPS 64
#define FIX_BTMAPS_NESTING 4
- FIX_BTMAP_END = __end_of_permanent_fixed_addresses + 512 -
- (__end_of_permanent_fixed_addresses & 511),
+ FIX_BTMAP_END = __end_of_permanent_fixed_addresses + 256 -
+ (__end_of_permanent_fixed_addresses & 255),
FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS*FIX_BTMAPS_NESTING - 1,
__end_of_fixed_addresses
};
_
Patches currently in -mm which might be from jbeulich@xxxxxxxxxx are
linux-next.patch
x86-init-annotations-in-early_printk-setup.patch
x86-adjust-dependencies-for-config_x86_cmov.patch
x86-pgd_cdtor-cleanup.patch
x86-x86_physvirt_bits-field-also-for-i386.patch
x86-adjust-vmalloc_sync_all-for-xen-2nd-try.patch
x86-fix-ticket-spin-lock-asm-constraints.patch
x86-64-reduce-boot-fixmap-space.patch
x86-64-add-two-__cpuinit-annotations.patch
x86-64-eliminate-dead-code.patch
x86-64-slightly-streamline-32-bit-syscall-entry-code.patch
adjust-init-section-definitions.patch
kconfig-eliminate-def_bool-n-constructs.patch
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