Commit graph android_kernel_sony_sdm845/arch/sparc64/kernel/unaligned.c
Message SHA1
sparc64: remove CVS keywords
This patch removes the CVS keywords that weren't updated for a long time
from comments.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Adrian Bunk   authored and   David S. Miller   commited 2008-05-20 00:33:43 -07:00
b00dc83764
[SPARC64] arch/sparc64/kernel/unaligned.c: Use time_* macros
The functions time_before, time_before_eq, time_after, and
time_after_eq are more robust for comparing jiffies against other
values.

So following patch implements usage of the time_after() macro, defined
at linux/jiffies.h, which deals with wrapping correctly

Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr>
Signed-off-by: David S. Miller <davem@davemloft.net>

S.Çağlar Onur   authored and   David S. Miller   commited 2008-02-17 23:24:10 -08:00
cbc9fc5dec
remove __attribute_used__
Remove the deprecated __attribute_used__.

[Introduce __section in a few places to silence checkpatch /sam]

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Adrian Bunk   authored and   Sam Ravnborg   commited 2008-01-28 23:21:18 +01:00
3ff6eecca4
header cleaning: don't include smp_lock.h when not used
Remove includes of <linux/smp_lock.h> where it is not used/needed.
Suggested by Al Viro.

Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,
sparc64, and arm (all 59 defconfigs).

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Randy Dunlap   authored and   Linus Torvalds   commited 2007-05-08 11:15:07 -07:00
e63340ae6b
[SPARC64]: Unaligned accesses to userspace are hard errors.
Userspace is forbidden from making unaligned loads and
stores.  So if we get an unaligned trap due to a
{get,put}_user(), signal a fault and run the exception
handler.

Signed-off-by: David S. Miller <davem@davemloft.net>

David S. Miller   commited 2006-12-10 02:39:39 -08:00
c449c38b5d
[SPARC64]: Print symbol name of regs->tpc on kernel unaligned accesses.
This makes things easier to track down, especially in modules.

Signed-off-by: David S. Miller <davem@davemloft.net>

David S. Miller   commited 2006-06-29 16:38:03 -07:00
675f740e55
[SPARC64]: Rate limited kernel unaligned trap logging, ala IA64.
Signed-off-by: David S. Miller <davem@davemloft.net>

David S. Miller   commited 2006-06-23 23:15:11 -07:00
27cc64c7cc
[SPARC64]: SUN4V memory exception trap handlers.
Signed-off-by: David S. Miller <davem@davemloft.net>

David S. Miller   commited 2006-03-20 01:12:07 -08:00
ed6b0b4543
[SPARC64]: Fix fault handling in unaligned trap handler.
We were not calling kernel_mna_trap_fault() correctly.
Instead of being fancy, just return 0 vs. -EFAULT from
the assembler stubs, and handle that return value as
appropriate.

Create an "__retl_efault" stub for assembler exception
table entries and use it where possible.

Signed-off-by: David S. Miller <davem@davemloft.net>

David S. Miller   commited 2005-09-28 20:41:45 -07:00
5fd29752f0
[SPARC64]: Convert to use generic exception table support.
The funny "range" exception table entries we had were only
used by the compat layer socketcall assembly, and it wasn't
even needed there.

For free we now get proper exception table sorting and fast
binary searching.

Signed-off-by: David S. Miller <davem@davemloft.net>

David S. Miller   commited 2005-09-28 20:21:11 -07:00
8cf14af0a7
[SPARC64]: Fix bug in unaligned load endianness swapping
The in-memory value was being swapped, not the value we
loaded into the register.

Signed-off-by: David S. Miller <davem@davemloft.net>

David S. Miller   commited 2005-09-28 16:48:40 -07:00
705747ab87
[SPARC64]: Handle little-endian unaligned loads/stores correctly.
Because we use byte loads/stores to cons up the value
in and out of registers, we can't expect the ASI endianness
setting to take care of this for us.  So do it by hand.

This case is triggered by drivers/block/aoe/aoecmd.c in the
ataid_complete() function where it goes:

		/* word 100: number lba48 sectors */
		ssize = le64_to_cpup((__le64 *) &id[100<<1]);

This &id[100<<1] address is 4 byte, rather than 8 byte aligned,
thus triggering the unaligned exception.

Signed-off-by: David S. Miller <davem@davemloft.net>

David S. Miller   commited 2005-09-19 19:56:06 -07:00
ff171d8f66
[SPARC64]: Revamp Spitfire error trap handling.
Current uncorrectable error handling was poor enough
that the processor could just loop taking the same
trap over and over again.  Fix things up so that we
at least get a log message and perhaps even some register
state.

In the process, much consolidation became possible,
particularly with the correctable error handler.

Prefix assembler and C function names with "spitfire"
to indicate that these are for Ultra-I/II/IIi/IIe only.

More work is needed to make these routines robust and
featureful to the level of the Ultra-III error handlers.

Signed-off-by: David S. Miller <davem@davemloft.net>

David S. Miller   commited 2005-08-29 12:45:11 -07:00
6c52a96e6c
[SPARC64]: Move kernel unaligned trap handlers into assembler file.
GCC 4.x really dislikes the games we are playing in
unaligned.c, and the cleanest way to fix this is to
move things into assembler.

Noted by Al Viro.

Signed-off-by: David S. Miller <davem@davemloft.net>

David S. Miller   commited 2005-08-19 15:55:33 -07:00
a3f9985843
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

Linus Torvalds   commited 2005-04-16 15:20:36 -07:00
1da177e4c3