AcoSail/kernel_optimize_test
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Merge master.kernel.org:/home/rmk/linux-2.6-arm

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This commit is contained in:
Linus Torvalds 2005-06-27 15:00:10 -07:00
commit 8b789b7d7e
10 changed files with 155 additions and 96 deletions
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5
arch/arm/kernel/process.c
View File

@ -32,6 +32,7 @@
#include <asm/leds.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
#include <asm/mach/time.h>
extern const char *processor_modes[];
extern void setup_mm_for_reboot(char mode);
@ -85,8 +86,10 @@ EXPORT_SYMBOL(pm_power_off);
void default_idle(void)
{
local_irq_disable();
if (!need_resched() && !hlt_counter)
if (!need_resched() && !hlt_counter) {
timer_dyn_reprogram();
arch_idle();
}
local_irq_enable();
}

10
arch/arm/kernel/time.c
View File

@ -424,15 +424,19 @@ static int timer_dyn_tick_disable(void)
return ret;
}
/*
* Reprogram the system timer for at least the calculated time interval.
* This function should be called from the idle thread with IRQs disabled,
* immediately before sleeping.
*/
void timer_dyn_reprogram(void)
{
struct dyn_tick_timer *dyn_tick = system_timer->dyn_tick;
unsigned long flags;
write_seqlock_irqsave(&xtime_lock, flags);
write_seqlock(&xtime_lock);
if (dyn_tick->state & DYN_TICK_ENABLED)
dyn_tick->reprogram(next_timer_interrupt() - jiffies);
write_sequnlock_irqrestore(&xtime_lock, flags);
write_sequnlock(&xtime_lock);
}
static ssize_t timer_show_dyn_tick(struct sys_device *dev, char *buf)

1
arch/arm/mach-aaec2000/Makefile.boot Normal file
View File

@ -0,0 +1 @@
zreladdr-y := 0xf0008000

71
arch/arm/mm/init.c
View File

@ -522,6 +522,69 @@ static inline void free_area(unsigned long addr, unsigned long end, char *s)
printk(KERN_INFO "Freeing %s memory: %dK\n", s, size);
}
static inline void
free_memmap(int node, unsigned long start_pfn, unsigned long end_pfn)
{
struct page *start_pg, *end_pg;
unsigned long pg, pgend;
/*
* Convert start_pfn/end_pfn to a struct page pointer.
*/
start_pg = pfn_to_page(start_pfn);
end_pg = pfn_to_page(end_pfn);
/*
* Convert to physical addresses, and
* round start upwards and end downwards.
*/
pg = PAGE_ALIGN(__pa(start_pg));
pgend = __pa(end_pg) & PAGE_MASK;
/*
* If there are free pages between these,
* free the section of the memmap array.
*/
if (pg < pgend)
free_bootmem_node(NODE_DATA(node), pg, pgend - pg);
}
/*
* The mem_map array can get very big. Free the unused area of the memory map.
*/
static void __init free_unused_memmap_node(int node, struct meminfo *mi)
{
unsigned long bank_start, prev_bank_end = 0;
unsigned int i;
/*
* [FIXME] This relies on each bank being in address order. This
* may not be the case, especially if the user has provided the
* information on the command line.
*/
for (i = 0; i < mi->nr_banks; i++) {
if (mi->bank[i].size == 0 || mi->bank[i].node != node)
continue;
bank_start = mi->bank[i].start >> PAGE_SHIFT;
if (bank_start < prev_bank_end) {
printk(KERN_ERR "MEM: unordered memory banks. "
"Not freeing memmap.\n");
break;
}
/*
* If we had a previous bank, and there is a space
* between the current bank and the previous, free it.
*/
if (prev_bank_end && prev_bank_end != bank_start)
free_memmap(node, prev_bank_end, bank_start);
prev_bank_end = (mi->bank[i].start +
mi->bank[i].size) >> PAGE_SHIFT;
}
}
/*
* mem_init() marks the free areas in the mem_map and tells us how much
* memory is free. This is done after various parts of the system have
@ -540,16 +603,12 @@ void __init mem_init(void)
max_mapnr = virt_to_page(high_memory) - mem_map;
#endif
/*
* We may have non-contiguous memory.
*/
if (meminfo.nr_banks != 1)
create_memmap_holes(&meminfo);
/* this will put all unused low memory onto the freelists */
for_each_online_node(node) {
pg_data_t *pgdat = NODE_DATA(node);
free_unused_memmap_node(node, &meminfo);
if (pgdat->node_spanned_pages != 0)
totalram_pages += free_all_bootmem_node(pgdat);
}

87
arch/arm/mm/mm-armv.c
View File

@ -169,7 +169,14 @@ pgd_t *get_pgd_slow(struct mm_struct *mm)
memzero(new_pgd, FIRST_KERNEL_PGD_NR * sizeof(pgd_t));
/*
* Copy over the kernel and IO PGD entries
*/
init_pgd = pgd_offset_k(0);
memcpy(new_pgd + FIRST_KERNEL_PGD_NR, init_pgd + FIRST_KERNEL_PGD_NR,
(PTRS_PER_PGD - FIRST_KERNEL_PGD_NR) * sizeof(pgd_t));
clean_dcache_area(new_pgd, PTRS_PER_PGD * sizeof(pgd_t));
if (!vectors_high()) {
/*
@ -198,14 +205,6 @@ pgd_t *get_pgd_slow(struct mm_struct *mm)
spin_unlock(&mm->page_table_lock);
}
/*
* Copy over the kernel and IO PGD entries
*/
memcpy(new_pgd + FIRST_KERNEL_PGD_NR, init_pgd + FIRST_KERNEL_PGD_NR,
(PTRS_PER_PGD - FIRST_KERNEL_PGD_NR) * sizeof(pgd_t));
clean_dcache_area(new_pgd, PTRS_PER_PGD * sizeof(pgd_t));
return new_pgd;
no_pte:
@ -698,75 +697,3 @@ void __init iotable_init(struct map_desc *io_desc, int nr)
for (i = 0; i < nr; i++)
create_mapping(io_desc + i);
}
static inline void
free_memmap(int node, unsigned long start_pfn, unsigned long end_pfn)
{
struct page *start_pg, *end_pg;
unsigned long pg, pgend;
/*
* Convert start_pfn/end_pfn to a struct page pointer.
*/
start_pg = pfn_to_page(start_pfn);
end_pg = pfn_to_page(end_pfn);
/*
* Convert to physical addresses, and
* round start upwards and end downwards.
*/
pg = PAGE_ALIGN(__pa(start_pg));
pgend = __pa(end_pg) & PAGE_MASK;
/*
* If there are free pages between these,
* free the section of the memmap array.
*/
if (pg < pgend)
free_bootmem_node(NODE_DATA(node), pg, pgend - pg);
}
static inline void free_unused_memmap_node(int node, struct meminfo *mi)
{
unsigned long bank_start, prev_bank_end = 0;
unsigned int i;
/*
* [FIXME] This relies on each bank being in address order. This
* may not be the case, especially if the user has provided the
* information on the command line.
*/
for (i = 0; i < mi->nr_banks; i++) {
if (mi->bank[i].size == 0 || mi->bank[i].node != node)
continue;
bank_start = mi->bank[i].start >> PAGE_SHIFT;
if (bank_start < prev_bank_end) {
printk(KERN_ERR "MEM: unordered memory banks. "
"Not freeing memmap.\n");
break;
}
/*
* If we had a previous bank, and there is a space
* between the current bank and the previous, free it.
*/
if (prev_bank_end && prev_bank_end != bank_start)
free_memmap(node, prev_bank_end, bank_start);
prev_bank_end = PAGE_ALIGN(mi->bank[i].start +
mi->bank[i].size) >> PAGE_SHIFT;
}
}
/*
* The mem_map array can get very big. Free
* the unused area of the memory map.
*/
void __init create_memmap_holes(struct meminfo *mi)
{
int node;
for_each_online_node(node)
free_unused_memmap_node(node, mi);
}

69
arch/arm/tools/mach-types
View File

@ -6,7 +6,7 @@
# To add an entry into this database, please see Documentation/arm/README,
# or contact rmk@arm.linux.org.uk
#
# Last update: Thu Mar 24 14:34:50 2005
# Last update: Thu Jun 23 20:19:33 2005
#
# machine_is_xxx CONFIG_xxxx MACH_TYPE_xxx number
#
@ -243,7 +243,7 @@ yoho ARCH_YOHO YOHO 231
jasper ARCH_JASPER JASPER 232
dsc25 ARCH_DSC25 DSC25 233
omap_innovator MACH_OMAP_INNOVATOR OMAP_INNOVATOR 234
ramses ARCH_RAMSES RAMSES 235
mnci ARCH_RAMSES RAMSES 235
s28x ARCH_S28X S28X 236
mport3 ARCH_MPORT3 MPORT3 237
pxa_eagle250 ARCH_PXA_EAGLE250 PXA_EAGLE250 238
@ -323,7 +323,7 @@ nimbra29x ARCH_NIMBRA29X NIMBRA29X 311
nimbra210 ARCH_NIMBRA210 NIMBRA210 312
hhp_d95xx ARCH_HHP_D95XX HHP_D95XX 313
labarm ARCH_LABARM LABARM 314
m825xx ARCH_M825XX M825XX 315
comcerto ARCH_M825XX M825XX 315
m7100 SA1100_M7100 M7100 316
nipc2 ARCH_NIPC2 NIPC2 317
fu7202 ARCH_FU7202 FU7202 318
@ -724,3 +724,66 @@ lpc22xx MACH_LPC22XX LPC22XX 715
omap_comet3 MACH_COMET3 COMET3 716
omap_comet4 MACH_COMET4 COMET4 717
csb625 MACH_CSB625 CSB625 718
fortunet2 MACH_FORTUNET2 FORTUNET2 719
s5h2200 MACH_S5H2200 S5H2200 720
optorm920 MACH_OPTORM920 OPTORM920 721
adsbitsyxb MACH_ADSBITSYXB ADSBITSYXB 722
adssphere MACH_ADSSPHERE ADSSPHERE 723
adsportal MACH_ADSPORTAL ADSPORTAL 724
ln2410sbc MACH_LN2410SBC LN2410SBC 725
cb3rufc MACH_CB3RUFC CB3RUFC 726
mp2usb MACH_MP2USB MP2USB 727
ntnp425c MACH_NTNP425C NTNP425C 728
colibri MACH_COLIBRI COLIBRI 729
pcm7220 MACH_PCM7220 PCM7220 730
gateway7001 MACH_GATEWAY7001 GATEWAY7001 731
pcm027 MACH_PCM027 PCM027 732
cmpxa MACH_CMPXA CMPXA 733
anubis MACH_ANUBIS ANUBIS 734
ite8152 MACH_ITE8152 ITE8152 735
lpc3xxx MACH_LPC3XXX LPC3XXX 736
puppeteer MACH_PUPPETEER PUPPETEER 737
vt001 MACH_MACH_VADATECH MACH_VADATECH 738
e570 MACH_E570 E570 739
x50 MACH_X50 X50 740
recon MACH_RECON RECON 741
xboardgp8 MACH_XBOARDGP8 XBOARDGP8 742
fpic2 MACH_FPIC2 FPIC2 743
akita MACH_AKITA AKITA 744
a81 MACH_A81 A81 745
svm_sc25x MACH_SVM_SC25X SVM_SC25X 746
vt020 MACH_VADATECH020 VADATECH020 747
tli MACH_TLI TLI 748
edb9315lc MACH_EDB9315LC EDB9315LC 749
passec MACH_PASSEC PASSEC 750
ds_tiger MACH_DS_TIGER DS_TIGER 751
e310 MACH_E310 E310 752
e330 MACH_E330 E330 753
rt3000 MACH_RT3000 RT3000 754
nokia770 MACH_NOKIA770 NOKIA770 755
pnx0106 MACH_PNX0106 PNX0106 756
hx21xx MACH_HX21XX HX21XX 757
faraday MACH_FARADAY FARADAY 758
sbc9312 MACH_SBC9312 SBC9312 759
batman MACH_BATMAN BATMAN 760
jpd201 MACH_JPD201 JPD201 761
mipsa MACH_MIPSA MIPSA 762
kacom MACH_KACOM KACOM 763
swarcocpu MACH_SWARCOCPU SWARCOCPU 764
swarcodsl MACH_SWARCODSL SWARCODSL 765
blueangel MACH_BLUEANGEL BLUEANGEL 766
hairygrama MACH_HAIRYGRAMA HAIRYGRAMA 767
banff MACH_BANFF BANFF 768
carmeva MACH_CARMEVA CARMEVA 769
sam255 MACH_SAM255 SAM255 770
ppm10 MACH_PPM10 PPM10 771
edb9315a MACH_EDB9315A EDB9315A 772
sunset MACH_SUNSET SUNSET 773
stargate2 MACH_STARGATE2 STARGATE2 774
intelmote2 MACH_INTELMOTE2 INTELMOTE2 775
trizeps4 MACH_TRIZEPS4 TRIZEPS4 776
mainstone2 MACH_MAINSTONE2 MAINSTONE2 777
ez_ixp42x MACH_EZ_IXP42X EZ_IXP42X 778
tapwave_zodiac MACH_TAPWAVE_ZODIAC TAPWAVE_ZODIAC 779
universalmeter MACH_UNIVERSALMETER UNIVERSALMETER 780
hicoarm9 MACH_HICOARM9 HICOARM9 781

2
include/asm-arm/arch-ixp4xx/debug-macro.S
View File

@ -14,8 +14,8 @@
mrc p15, 0, \rx, c1, c0
tst \rx, #1 @ MMU enabled?
moveq \rx, #0xc8000000
orrne \rx, \rx, #0x00b00000
movne \rx, #0xff000000
orrne \rx, \rx, #0x00b00000
add \rx,\rx,#3 @ Uart regs are at off set of 3 if
@ byte writes used - Big Endian.
.endm

2
include/asm-arm/ide.h
View File

@ -5,7 +5,7 @@
*/
/*
* This file contains the i386 architecture specific IDE code.
* This file contains the ARM architecture specific IDE code.
*/
#ifndef __ASMARM_IDE_H

2
include/asm-arm/io.h
View File

@ -82,7 +82,7 @@ extern void __readwrite_bug(const char *fn);
* only. Their primary purpose is to access PCI and ISA peripherals.
*
* Note that for a big endian machine, this implies that the following
* big endian mode connectivity is in place, as described by numerious
* big endian mode connectivity is in place, as described by numerous
* ARM documents:
*
* PCI: D0-D7 D8-D15 D16-D23 D24-D31

2
include/asm-arm/mach/time.h
View File

@ -60,6 +60,8 @@ struct dyn_tick_timer {
};
void timer_dyn_reprogram(void);
#else
#define timer_dyn_reprogram() do { } while (0)
#endif
extern struct sys_timer *system_timer;