linux.git/arch/mips, branch v2.6.30 Linux kernel source tree MIPS: Outline udelay and fix a few issues. 2009-06-08T15:57:51+00:00 Ralf Baechle ralf@linux-mips.org 2009-02-28T09:44:28+00:00 5636919b5c909fee54a6ef5226475ecae012ad02 Outlining fixes the issue were on certain CPUs such as the R10000 family the delay loop would need an extra cycle if it overlaps a cacheline boundary. The rewrite also fixes build errors with GCC 4.4 which was changed in way incompatible with the kernel's inline assembly. Relying on pure C for computation of the delay value removes the need for explicit. The price we pay is a slight slowdown of the computation - to be fixed on another day. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Outlining fixes the issue were on certain CPUs such as the R10000 family
the delay loop would need an extra cycle if it overlaps a cacheline
boundary.

The rewrite also fixes build errors with GCC 4.4 which was changed in
way incompatible with the kernel's inline assembly.

Relying on pure C for computation of the delay value removes the need for
explicit.  The price we pay is a slight slowdown of the computation - to
be fixed on another day.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: ioctl.h: Fix headers_check warnings 2009-06-08T15:57:51+00:00 Jaswinder Singh Rajput jaswinder@kernel.org 2009-06-04T12:35:49+00:00 3a553147eaad5d4de90ab1f695aa13ddbea684ec Make ioctl.h compatible with asm-generic/ioctl.h and userspace fix the following 'make headers_check' warning: usr/include/asm-mips/ioctl.h:64: extern's make no sense in userspace Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Make ioctl.h compatible with asm-generic/ioctl.h and userspace

fix the following 'make headers_check' warning:

  usr/include/asm-mips/ioctl.h:64: extern's make no sense in userspace

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Cobalt: PCI bus is always required to obtain the board ID 2009-06-08T15:57:50+00:00 Yoichi Yuasa yoichi_yuasa@tripeaks.co.jp 2009-06-02T14:17:07+00:00 e25bfc9243f2eab12a2ce92b7f4b8a2e3e6949a6 Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Kconfig: Remove "Support for" from Cavium system type 2009-06-08T15:57:50+00:00 Yoichi Yuasa yoichi_yuasa@tripeaks.co.jp 2009-06-02T14:15:10+00:00 c9d89d97f0d174b9154820dd5c6726d1c794cd99 Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Sibyte: Honor CONFIG_CMDLINE 2009-06-08T15:57:50+00:00 Ralf Baechle ralf@linux-mips.org 2009-06-02T18:05:28+00:00 e082f188f774544bc2c2edf51176157503c98fe4 Original patch by Imre Kaloz <kaloz@openwrt.org>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Original patch by Imre Kaloz <kaloz@openwrt.org>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: IP32: Remove unnecessary if not even harmful volatile keywords. 2009-05-22T12:52:06+00:00 Ralf Baechle ralf@linux-mips.org 2009-05-22T09:58:43+00:00 d2f82c2f70d56ba4623de25edb383fec01f43b89 They are unneeded and as the issue fixed in lmo commit 63f7ec59053e3f850ab67a9938e631bcba64c6ce shows even harmful. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
They are unneeded and as the issue fixed in lmo commit
63f7ec59053e3f850ab67a9938e631bcba64c6ce shows even harmful.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: IP32: Fix build error due to uninitialized variable. 2009-05-22T12:52:06+00:00 Ralf Baechle ralf@linux-mips.org 2009-05-22T09:48:17+00:00 63c901c7e6fb878805cd2f8f14fa3eee8c03ee84 CC arch/mips/sgi-ip32/ip32-reset.o cc1: warnings being treated as errors arch/mips/sgi-ip32/ip32-reset.c: In function 'debounce': arch/mips/sgi-ip32/ip32-reset.c:97: error: 'reg_a' is used uninitialized in this function The issues is old but due to the volatile keyword gcc older than 4.4 did not warn about this obvious bug. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
  CC      arch/mips/sgi-ip32/ip32-reset.o
cc1: warnings being treated as errors
arch/mips/sgi-ip32/ip32-reset.c: In function 'debounce':
arch/mips/sgi-ip32/ip32-reset.c:97: error: 'reg_a' is used uninitialized in this function

The issues is old but due to the volatile keyword gcc older than 4.4 did
not warn about this obvious bug.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Fix sparse warning in incompatiable argument type of clear_user. 2009-05-22T12:52:05+00:00 Wu Zhangjin wuzhangjin@gmail.com 2009-05-20T21:50:01+00:00 63d3892379f93b73ef905fb3449f4e4438a53b40 The type of the second argument of access_ok should be (void __user *). The unnecessary conversion of the clear_user address argument was causing sparse to emit warnings on the __chk_user_ptr check. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
The type of the second argument of access_ok should be (void __user *).
The unnecessary conversion of the clear_user address argument was causing
sparse to emit warnings on the __chk_user_ptr check.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: 64-bit: Fix system lockup. 2009-05-20T17:53:14+00:00 Greg Ungerer gerg@snapgear.com 2009-05-20T06:12:32+00:00 a5e696e5d0f1377ff6beb10d2f40edb6a3d1de18 The address range size calculation inside local_flush_tlb_kernel_range() is being truncated by a too small size variable holder on 64-bit systems. The truncated size can result in an erroneous tlbsize check that means we sit spinning inside a loop trying to flush a hige number of TLB entries. This is for all intents and purposes a system hang. Fix by using an appropriately sized valiable to hold the size. [Ralf: Greg's original patch submission identified the issue and fixed one instance in tlb-r4k.c but there there were several more. For consistency I also modified tlb-r3k.c even though that file is only used on 32-bit.] Signed-off-by: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
The address range size calculation inside local_flush_tlb_kernel_range()
is being truncated by a too small size variable holder on 64-bit systems.
The truncated size can result in an erroneous tlbsize check that means we
sit spinning inside a loop trying to flush a hige number of TLB entries.
This is for all intents and purposes a system hang. Fix by using an
appropriately sized valiable to hold the size.

[Ralf: Greg's original patch submission identified the issue and fixed one
instance in tlb-r4k.c but there there were several more.  For consistency
I also modified tlb-r3k.c even though that file is only used on 32-bit.]

Signed-off-by: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: IP28: Change to build with -mr10k-cache-barrier=store 2009-05-20T17:53:13+00:00 peter fuerst post@pfrst.de 2009-05-17T21:49:45+00:00 195d1a96ae5fdfbedb8dc4b97afee578921fa99e Richard Sandiford's new code for inserting the cache-barriers, for GCC 4.3 and above and already incorporated in the current GCC-release, uses a slightly different option-syntax. Signed-off-by: peter fuerst <post@pfrst.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Richard Sandiford's new code for inserting the cache-barriers, for GCC
4.3 and above and already incorporated in the current GCC-release, uses
a slightly different option-syntax.

Signed-off-by: peter fuerst <post@pfrst.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>