- 12 12月, 2009 1 次提交
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由 Sam Ravnborg 提交于
The simplest method was to add an extra asm-offsets.h file in arch/$ARCH/include/asm that references the generated file. We can now migrate the architectures one-by-one to reference the generated file direct - and when done we can delete the temporary arch/$ARCH/include/asm/asm-offsets.h file. Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: NMichal Marek <mmarek@suse.cz>
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- 11 12月, 2009 2 次提交
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由 Al Viro 提交于
We want addr - (pgoff << PAGE_SHIFT) consistently coloured... Acked-by: NPaul Mundt <lethal@linux-sh.org> Acked-by: NHugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
New helper - sys_mmap_pgoff(); switch syscalls to using it. Acked-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 05 12月, 2009 1 次提交
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由 Adam Buchbinder 提交于
"Definition" is misspelled "defintion" in several comments; this patch fixes them. No code changes. Signed-off-by: NAdam Buchbinder <adam.buchbinder@gmail.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 04 12月, 2009 9 次提交
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由 Magnus Damm 提交于
This patch updates the romImage code to include the empty_zero_page contents from vmlinux. Without this patch the empty zero page is lef uninitialized. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Now that associative cache writes are no longer needed by the SH-4/SH-4A cache flush code, associative write support can be explicitly disabled for all SH-4A parts. This makes any associative write throw an exception, as this behaviour can not be assumed to exist on future parts. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
When flushing/invalidating the icache/dcache via the memory-mapped IC/OC address arrays, the associative bit should only be used in conjunction with virtual addresses. However, we currently flush cache lines based on physical address, so stop using the associative bit. It is a better strategy to use non-associative writes (and physical tags) for flushing the caches anyway, because flushing by virtual address (as with the A-bit set) requires a valid TLB entry for that virtual address. If one does not exist in the TLB no exception is generated and the flush is silently ignored. This is also future-proofing for SH-4A parts which are gradually phasing out associative writes to the cache array due to the aforementioned case of certain flushes silently turning in to nops. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
These still require more testing, so revert them for now. We keep the off-by-1 in the fixmap colouring and drop the rest. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch updates the Runtime PM code for SuperH Mobile to allow drivers to have NULL as pm or callback value. With this in place there is no need for no-op functions. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Kuninori Morimoto 提交于
The setting of VPU need not be changed from default. And current setting value is not defined on SH7724 Reported-by: NGoda Yusuke <goda.yusuke@renesas.com> Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Kuninori Morimoto 提交于
Drive ability for LCDC become high for safety, became there is strange individual specificity board in mass production Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
Fix one-off VEU3F size error for sh7724. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 30 11月, 2009 8 次提交
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由 Kuninori Morimoto 提交于
Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com> Acked-by: NPaul Mundt <lethal@linux-sh.org> Acked-by: NLiam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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由 Magnus Damm 提交于
This patch improves the serial port communication quality of port YC401 on the KFR2R09 board. With this fix serial console is fine at 115200 - up and down keys now work as expected. Thanks to Hirohide Yamasaki for this fix. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This file breaks out the SuperH PFC code from arch/sh/kernel/gpio.c + arch/sh/include/asm/gpio.h to drivers/sh/pfc.c + include/linux/sh_pfc.h. Similar to the INTC stuff. The non-SuperH specific file location makes it possible to share the code between multiple architectures. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch moves the KEYSC header file from the SuperH specific asm directory to a place where it can be shared by multiple architectures. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Alexey Dobriyan 提交于
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
Add sh7724 code to save and restore CPG state during R-standby. Only CPG registers IRDACLKCR and SPUCLKCR require software save and restore. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch adds support for SDHI power control to the Ecovec board. Platform data and power control callbacks for SDHI0 and SDHI1 are added. Power is by default off. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Kuninori Morimoto 提交于
ecovec24 board expect address map 2 instead of map 1 Signed-off-by: NMizukawa Tatsuo <mizukawa.tatsuo@renesas.com> Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 26 11月, 2009 1 次提交
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由 Ilya Loginov 提交于
Mtdblock driver doesn't call flush_dcache_page for pages in request. So, this causes problems on architectures where the icache doesn't fill from the dcache or with dcache aliases. The patch fixes this. The ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE symbol was introduced to avoid pointless empty cache-thrashing loops on architectures for which flush_dcache_page() is a no-op. Every architecture was provided with this flush pages on architectires where ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE is equal 1 or do nothing otherwise. See "fix mtd_blkdevs problem with caches on some architectures" discussion on LKML for more information. Signed-off-by: NIlya Loginov <isloginov@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Peter Horton <phorton@bitbox.co.uk> Cc: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 25 11月, 2009 1 次提交
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由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 24 11月, 2009 5 次提交
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由 Paul Mundt 提交于
This plugs in the fpu_counter manipulation for the SH-2A side also. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Stuart Menefy 提交于
A number of small optimisations to FPU handling, in particular: - move the task USEDFPU flag from the thread_info flags field (which is accessed asynchronously to the thread) to a new status field, which is only accessed by the thread itself. This allows locking to be removed in most cases, or can be reduced to a preempt_lock(). This mimics the i386 behaviour. - move the modification of regs->sr and thread_info->status flags out of save_fpu() to __unlazy_fpu(). This gives the compiler a better chance to optimise things, as well as making save_fpu() symmetrical with restore_fpu() and init_fpu(). - implement prepare_to_copy(), so that when creating a thread, we can unlazy the FPU prior to copying the thread data structures. Also make sure that the FPU is disabled while in the kernel, in particular while booting, and for newly created kernel threads, In a very artificial benchmark, the execution time for 2500000 context switches was reduced from 50 to 45 seconds. Signed-off-by: NStuart Menefy <stuart.menefy@st.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Stuart Menefy 提交于
The previous implementation of clear_user_highpage and copy_user_highpage checked to see if there was a D-cache aliasing issue between the user and kernel mappings of a page, but if there was they always did a flush with writeback on the dirtied kernel alias. However as we now have the ability to map a page into kernel space with the same cache colour as the user mapping, there is no need to write back this data. Currently we also invalidate the kernel alias as a precaution, however I'm not sure if this is actually required. Also correct the definition of FIX_CMAP_END so that the mappings created by kmap_coherent() are actually at the correct colour. Signed-off-by: NStuart Menefy <stuart.menefy@st.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Stuart Menefy 提交于
Optimised version of memset for the SH4 which uses movca.l. Signed-off-by: NStuart Menefy <stuart.menefy@st.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Giuseppe CAVALLARO 提交于
sh port of the sLeAZY-fpu feature currently implemented for some architectures such us i386. Right now the SH kernel has a 100% lazy fpu behaviour. This is of course great for applications that have very sporadic or no FPU use. However for very frequent FPU users... you take an extra trap every context switch. The patch below adds a simple heuristic to this code: after 5 consecutive context switches of FPU use, the lazy behavior is disabled and the context gets restored every context switch. After 256 switches, this is reset and the 100% lazy behavior is returned. Tests with LMbench showed no regression. I saw a little improvement due to the prefetching (~2%). The tests below also show that, with this sLeazy patch, indeed, the number of FPU exceptions is reduced. To test this. I hacked the lat_ctx LMBench to use the FPU a little more. sLeasy implementation =========================================== switch_to calls | 79326 sleasy calls | 42577 do_fpu_state_restore calls| 59232 restore_fpu calls | 59032 Exceptions: 0x800 (FPU disabled ): 16604 100% Leazy (default implementation) =========================================== switch_to calls | 79690 do_fpu_state_restore calls | 53299 restore_fpu calls | 53101 Exceptions: 0x800 (FPU disabled ): 53273 Signed-off-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: NStuart Menefy <stuart.menefy@st.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 19 11月, 2009 1 次提交
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由 Eric W. Biederman 提交于
For consistency drop & in front of every proc_handler. Explicity taking the address is unnecessary and it prevents optimizations like stubbing the proc_handlers to NULL. Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Joe Perches <joe@perches.com> Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
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- 18 11月, 2009 1 次提交
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由 Thomas Gleixner 提交于
The typename member of struct irq_chip was kept for migration purposes and is obsolete since more than 2 years. Fix up the leftovers. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: linux-sh@vger.kernel.org Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 13 11月, 2009 1 次提交
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由 Paul Mundt 提交于
This is a static symbol, so the export is wholly superfluous. Recent kbuild updates flagged this as an error, resulting in build failure, so this tidies that up. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 12 11月, 2009 5 次提交
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由 Eric W. Biederman 提交于
Now that sys_sysctl is a generic wrapper around /proc/sys .ctl_name and .strategy members of sysctl tables are dead code. Remove them. Also add an C99 named initializer to the child member of unaligned_root to prevent chaos as the ctl_table definition changes over time. Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
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由 Paul Mundt 提交于
This gets the build fixed up for the sh64 cache enabled case. Disabling still needs further abstraction for independent I/D-cache disabling. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
sh64 doesn't use GENERIC_BUG, which presently causes the handle_BUG() code to blow up. Fix up the dependencies and get it all building again. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This fixes up the build and behaviour for various configurations. Namely the CONFIG_32BIT cases where legacy mappings do not exist, as well as the sh64 build. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 11 11月, 2009 1 次提交
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由 Paul Mundt 提交于
Presently the PMB options were limited to a number of CPUs they were tested with, but it is generally available on all SH-4A CPUs, so just drop the subtype conditionals. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 09 11月, 2009 3 次提交
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由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Thomas Gleixner 提交于
SPIN_LOCK_UNLOCKED is deprecated. Use __SPIN_LOCK_UNLOCKED instead. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: linux-sh@vger.kernel.org Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
The icache may also contain aliases so we must account for them just like we do when manipulating the dcache. We usually get away with aliases in the icache because the instructions that are read from memory are read-only, i.e. they never change. However, the place where this bites us is when the code has been modified. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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