[GIT PULL] m32r updates for 2.6.32-rc7
From: Hirokazu Takata
Date: Wed Nov 04 2009 - 09:28:29 EST
Hi Linus,
Here is m32r updates for 2.6.32-rc7.
Please pull the following updates from:
git://www.linux-m32r.org/git/takata/linux-2.6_dev.git for-linus
Thanks,
-- Takata
The following changes since commit b419148e567728f6af0c3b01965c1cc141e3e13a:
Linus Torvalds (1):
Linux 2.6.32-rc6
are available in the git repository at:
git://www.linux-m32r.org/git/takata/linux-2.6_dev.git for-linus
Hirokazu Takata (2):
m32r: add NOTES to vmlinux.lds.S to remove .note.gnu.build-id section
m32r: bzip2/lzma kernel compression support
Julia Lawall (1):
arch/m32r: Use DIV_ROUND_CLOSEST
Roel Kluin (1):
m32r: Should index be positive?
arch/m32r/Kconfig | 3 +
arch/m32r/boot/compressed/Makefile | 16 +++-
arch/m32r/boot/compressed/misc.c | 143 +++++++-----------------------------
arch/m32r/kernel/smp.c | 2 +-
arch/m32r/kernel/time.c | 6 +-
arch/m32r/kernel/vmlinux.lds.S | 2 +
6 files changed, 48 insertions(+), 124 deletions(-)
---
commit 45cdd473301aae36e1f10664b9fe7ef5aad3f182
Author: Roel Kluin <roel.kluin@xxxxxxxxx>
Date: Sun Nov 1 15:33:06 2009 +0100
m32r: Should index be positive?
Index `ipi_num' is signed, test whether it is negative to
make sure we don't get a negative array element.
Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
Signed-off-by: Hirokazu Takata <takata@xxxxxxxxxxxxxx>
diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
index 8a88f1f..31cef20 100644
--- a/arch/m32r/kernel/smp.c
+++ b/arch/m32r/kernel/smp.c
@@ -806,7 +806,7 @@ unsigned long send_IPI_mask_phys(cpumask_t physid_mask, int ipi_num,
if (mask & ~physids_coerce(phys_cpu_present_map))
BUG();
- if (ipi_num >= NR_IPIS)
+ if (ipi_num >= NR_IPIS || ipi_num < 0)
BUG();
mask <<= IPI_SHIFT;
commit 337214e8c6b0c777713b2483749f9c03102a416c
Author: Hirokazu Takata <takata@xxxxxxxxxxxxxx>
Date: Thu Oct 15 09:21:56 2009 +0900
m32r: bzip2/lzma kernel compression support
- Support bzip2 and lzma kernel compression for m32r.
- Clean up arch/m32r/boot/compressed/misc.c.
Signed-off-by: Hirokazu Takata <takata@xxxxxxxxxxxxxx>
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index c41234f..3a9319f 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -11,6 +11,9 @@ config M32R
select HAVE_IDE
select HAVE_OPROFILE
select INIT_ALL_POSSIBLE
+ select HAVE_KERNEL_GZIP
+ select HAVE_KERNEL_BZIP2
+ select HAVE_KERNEL_LZMA
config SBUS
bool
diff --git a/arch/m32r/boot/compressed/Makefile b/arch/m32r/boot/compressed/Makefile
index 560484a..1003880 100644
--- a/arch/m32r/boot/compressed/Makefile
+++ b/arch/m32r/boot/compressed/Makefile
@@ -4,8 +4,8 @@
# create a compressed vmlinux image from the original vmlinux
#
-targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o \
- piggy.o vmlinux.lds
+targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
+ vmlinux.bin.lzma head.o misc.o piggy.o vmlinux.lds
OBJECTS = $(obj)/head.o $(obj)/misc.o
@@ -27,6 +27,12 @@ $(obj)/vmlinux.bin: vmlinux FORCE
$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
$(call if_changed,gzip)
+$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
+ $(call if_changed,bzip2)
+
+$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
+ $(call if_changed,lzma)
+
CFLAGS_misc.o += -fpic
ifdef CONFIG_MMU
@@ -37,5 +43,9 @@ endif
OBJCOPYFLAGS += -R .empty_zero_page
-$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
+suffix_$(CONFIG_KERNEL_GZIP) = gz
+suffix_$(CONFIG_KERNEL_BZIP2) = bz2
+suffix_$(CONFIG_KERNEL_LZMA) = lzma
+
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix_y) FORCE
$(call if_changed,ld)
diff --git a/arch/m32r/boot/compressed/misc.c b/arch/m32r/boot/compressed/misc.c
index d394292..370d608 100644
--- a/arch/m32r/boot/compressed/misc.c
+++ b/arch/m32r/boot/compressed/misc.c
@@ -9,140 +9,49 @@
* Adapted for SH by Stuart Menefy, Aug 1999
*
* 2003-02-12: Support M32R by Takeo Takahashi
- * This is based on arch/sh/boot/compressed/misc.c.
*/
-#include <linux/string.h>
-
/*
* gzip declarations
*/
-
-#define OF(args) args
#define STATIC static
#undef memset
#undef memcpy
#define memzero(s, n) memset ((s), 0, (n))
-typedef unsigned char uch;
-typedef unsigned short ush;
-typedef unsigned long ulg;
-
-#define WSIZE 0x8000 /* Window size must be at least 32k, */
- /* and a power of two */
-
-static uch *inbuf; /* input buffer */
-static uch window[WSIZE]; /* Sliding window buffer */
-
-static unsigned insize = 0; /* valid bytes in inbuf */
-static unsigned inptr = 0; /* index of next byte to be processed in inbuf */
-static unsigned outcnt = 0; /* bytes in output buffer */
-
-/* gzip flag byte */
-#define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */
-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
-#define COMMENT 0x10 /* bit 4 set: file comment present */
-#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
-#define RESERVED 0xC0 /* bit 6,7: reserved */
-
-#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf())
-
-/* Diagnostic functions */
-#ifdef DEBUG
-# define Assert(cond,msg) {if(!(cond)) error(msg);}
-# define Trace(x) fprintf x
-# define Tracev(x) {if (verbose) fprintf x ;}
-# define Tracevv(x) {if (verbose>1) fprintf x ;}
-# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
-#else
-# define Assert(cond,msg)
-# define Trace(x)
-# define Tracev(x)
-# define Tracevv(x)
-# define Tracec(c,x)
-# define Tracecv(c,x)
-#endif
-
-static int fill_inbuf(void);
-static void flush_window(void);
static void error(char *m);
-static unsigned char *input_data;
-static int input_len;
-
-static long bytes_out = 0;
-static uch *output_data;
-static unsigned long output_ptr = 0;
-
#include "m32r_sio.c"
static unsigned long free_mem_ptr;
static unsigned long free_mem_end_ptr;
-#define HEAP_SIZE 0x10000
-
-#include "../../../../lib/inflate.c"
-
-void* memset(void* s, int c, size_t n)
+#ifdef CONFIG_KERNEL_BZIP2
+static void *memset(void *s, int c, size_t n)
{
- int i;
- char *ss = (char*)s;
+ char *ss = s;
- for (i=0;i<n;i++) ss[i] = c;
+ while (n--)
+ *ss++ = c;
return s;
}
+#endif
-void* memcpy(void* __dest, __const void* __src,
- size_t __n)
-{
- int i;
- char *d = (char *)__dest, *s = (char *)__src;
-
- for (i=0;i<__n;i++) d[i] = s[i];
- return __dest;
-}
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty
- * and at least one byte is really needed.
- */
-static int fill_inbuf(void)
-{
- if (insize != 0) {
- error("ran out of input data");
- }
-
- inbuf = input_data;
- insize = input_len;
- inptr = 1;
- return inbuf[0];
-}
+#ifdef CONFIG_KERNEL_GZIP
+#define BOOT_HEAP_SIZE 0x10000
+#include "../../../../lib/decompress_inflate.c"
+#endif
-/* ===========================================================================
- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
- * (Used for the decompressed data only.)
- */
-static void flush_window(void)
-{
- ulg c = crc; /* temporary variable */
- unsigned n;
- uch *in, *out, ch;
+#ifdef CONFIG_KERNEL_BZIP2
+#define BOOT_HEAP_SIZE 0x400000
+#include "../../../../lib/decompress_bunzip2.c"
+#endif
- in = window;
- out = &output_data[output_ptr];
- for (n = 0; n < outcnt; n++) {
- ch = *out++ = *in++;
- c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
- }
- crc = c;
- bytes_out += (ulg)outcnt;
- output_ptr += (ulg)outcnt;
- outcnt = 0;
-}
+#ifdef CONFIG_KERNEL_LZMA
+#define BOOT_HEAP_SIZE 0x10000
+#include "../../../../lib/decompress_unlzma.c"
+#endif
static void error(char *x)
{
@@ -153,20 +62,20 @@ static void error(char *x)
while(1); /* Halt */
}
-/* return decompressed size */
void
decompress_kernel(int mmu_on, unsigned char *zimage_data,
unsigned int zimage_len, unsigned long heap)
{
+ unsigned char *input_data = zimage_data;
+ int input_len = zimage_len;
+ unsigned char *output_data;
+
output_data = (unsigned char *)CONFIG_MEMORY_START + 0x2000
+ (mmu_on ? 0x80000000 : 0);
free_mem_ptr = heap;
- free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
- input_data = zimage_data;
- input_len = zimage_len;
+ free_mem_end_ptr = free_mem_ptr + BOOT_HEAP_SIZE;
- makecrc();
- puts("Uncompressing Linux... ");
- gunzip();
- puts("Ok, booting the kernel.\n");
+ puts("\nDecompressing Linux... ");
+ decompress(input_data, input_len, NULL, NULL, output_data, NULL, error);
+ puts("done.\nBooting the kernel.\n");
}
commit e968b8d404ae8ab4ef218cd145f6dcb71e65154b
Author: Hirokazu Takata <takata@xxxxxxxxxxxxxx>
Date: Mon Oct 5 00:10:55 2009 +0900
m32r: add NOTES to vmlinux.lds.S to remove .note.gnu.build-id section
Building with --build-id option, .note.gnu.build-id section is added
to vmlinux.bin. But some old buggy binutils creates a huge vmlinux.bin,
and a bootloader fails to boot its zImage as well.
This patch adds a NOTES macro to a linker script vmlinux.ld.S to put
.note.gnu.build-id section into .note section.
Then, the .note section will be removed, because "-R .note" option is
specified in OBJCOPYFLAGS to make a vmlinux.bin binary.
Signed-off-by: Hirokazu Takata <takata@xxxxxxxxxxxxxx>
diff --git a/arch/m32r/kernel/vmlinux.lds.S b/arch/m32r/kernel/vmlinux.lds.S
index 8ceb618..7da94ea 100644
--- a/arch/m32r/kernel/vmlinux.lds.S
+++ b/arch/m32r/kernel/vmlinux.lds.S
@@ -42,6 +42,8 @@ SECTIONS
_etext = .; /* End of text section */
EXCEPTION_TABLE(16)
+ NOTES
+
RODATA
RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
_edata = .; /* End of data section */
commit 560235857fb79da48d36e8f866a0ee3b10a232bf
Author: Julia Lawall <julia@xxxxxxx>
Date: Sun Aug 2 10:47:27 2009 +0200
arch/m32r: Use DIV_ROUND_CLOSEST
The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d
but is perhaps more readable.
The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@haskernel@
@@
@depends on haskernel@
expression x,__divisor;
@@
- (((x) + ((__divisor) / 2)) / (__divisor))
+ DIV_ROUND_CLOSEST(x,__divisor)
// </smpl>
Signed-off-by: Julia Lawall <julia@xxxxxxx>
Signed-off-by: Hirokazu Takata <takata@xxxxxxxxxxxxxx>
diff --git a/arch/m32r/kernel/time.c b/arch/m32r/kernel/time.c
index e7fee0f..9cedcef 100644
--- a/arch/m32r/kernel/time.c
+++ b/arch/m32r/kernel/time.c
@@ -75,7 +75,7 @@ u32 arch_gettimeoffset(void)
count = 0;
count = (latch - count) * TICK_SIZE;
- elapsed_time = (count + latch / 2) / latch;
+ elapsed_time = DIV_ROUND_CLOSEST(count, latch);
/* NOTE: LATCH is equal to the "interval" value (= reload count). */
#else /* CONFIG_SMP */
@@ -93,7 +93,7 @@ u32 arch_gettimeoffset(void)
p_count = count;
count = (latch - count) * TICK_SIZE;
- elapsed_time = (count + latch / 2) / latch;
+ elapsed_time = DIV_ROUND_CLOSEST(count, latch);
/* NOTE: LATCH is equal to the "interval" value (= reload count). */
#endif /* CONFIG_SMP */
#elif defined(CONFIG_CHIP_M32310)
@@ -211,7 +211,7 @@ void __init time_init(void)
bus_clock = boot_cpu_data.bus_clock;
divide = boot_cpu_data.timer_divide;
- latch = (bus_clock/divide + HZ / 2) / HZ;
+ latch = DIV_ROUND_CLOSEST(bus_clock/divide, HZ);
printk("Timer start : latch = %ld\n", latch);
--
Hirokazu Takata <takata@xxxxxxxxxxxxxx>
Linux/M32R Project: http://www.linux-m32r.org/
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/