- 09 12月, 2011 1 次提交
-
-
由 Tejun Heo 提交于
memblock_init() initializes arrays for regions and memblock itself; however, all these can be done with struct initializers and memblock_init() can be removed. This patch kills memblock_init() and initializes memblock with struct initializer. The only difference is that the first dummy entries don't have .nid set to MAX_NUMNODES initially. This doesn't cause any behavior difference. Signed-off-by: NTejun Heo <tj@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Michal Simek <monstr@monstr.eu> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: "H. Peter Anvin" <hpa@zytor.com>
-
- 01 11月, 2011 1 次提交
-
-
由 Paul Gortmaker 提交于
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
-
- 28 10月, 2011 1 次提交
-
-
由 Simon Horman 提交于
Add PHYSICAL_START kernel configuration parameter to set the address at which the kernel should be loaded. It has been observed on an sh7757lcr that simply modifying MEMORY_START does not achieve this goal for 32bit sh. This is due to MEMORY_OFFSET in arch/sh/kernel/vmlinux.lds.S bot being based on MEMORY_START on such systems. Signed-off-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 01 7月, 2011 1 次提交
-
-
由 Peter Zijlstra 提交于
The nmi parameter indicated if we could do wakeups from the current context, if not, we would set some state and self-IPI and let the resulting interrupt do the wakeup. For the various event classes: - hardware: nmi=0; PMI is in fact an NMI or we run irq_work_run from the PMI-tail (ARM etc.) - tracepoint: nmi=0; since tracepoint could be from NMI context. - software: nmi=[0,1]; some, like the schedule thing cannot perform wakeups, and hence need 0. As one can see, there is very little nmi=1 usage, and the down-side of not using it is that on some platforms some software events can have a jiffy delay in wakeup (when arch_irq_work_raise isn't implemented). The up-side however is that we can remove the nmi parameter and save a bunch of conditionals in fast paths. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Michael Cree <mcree@orcon.net.nz> Cc: Will Deacon <will.deacon@arm.com> Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com> Cc: Anton Blanchard <anton@samba.org> Cc: Eric B Munson <emunson@mgebm.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: David S. Miller <davem@davemloft.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Don Zickus <dzickus@redhat.com> Link: http://lkml.kernel.org/n/tip-agjev8eu666tvknpb3iaj0fg@git.kernel.orgSigned-off-by: NIngo Molnar <mingo@elte.hu>
-
- 30 6月, 2011 1 次提交
-
-
由 Paul Mundt 提交于
Follows the powerpc change, for much the same rationale. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 06 6月, 2011 1 次提交
-
-
由 Srinivas KANDAGATLA 提交于
This patch fixes a icache/dcache address-array start address while dumping its entires in debugfs. Perviously the code was attempting to remember the address in static variable, which is no more required for debugfs, as the function can be executed in one pass. Without this patch the start address ends up in wrong place and the /sys/kernel/debug/sh/icache or dcache debugfs contents may not be correct. Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com> Cc: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 31 5月, 2011 1 次提交
-
-
由 Paul Mundt 提交于
sh64 doesn't define a P1SEGADDR, resulting in a build failure. The proper mapping can be attained for both sh32 and 64 via the CAC_ADDR macro, so switch to that instead. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 25 5月, 2011 1 次提交
-
-
由 Peter Zijlstra 提交于
Fold all the mmu_gather rework patches into one for submission Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Reported-by: NHugh Dickins <hughd@google.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Miller <davem@davemloft.net> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Tony Luck <tony.luck@intel.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Namhyung Kim <namhyung@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 23 3月, 2011 1 次提交
-
-
由 Paul Mundt 提交于
This converts the PMB code over to use the new syscore_ops and kills off the old sysdev utilization, as per Rafael's example. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 15 2月, 2011 2 次提交
-
-
由 Chris Smith 提交于
This patch enables gcov kernel profiling over the whole kernel for sh. Profiling of specific files individually already worked. A handful of files have to be explicitly excluded from the profiling to avoid breaking things, notably pmb.c. Signed-off-by: NChris Smith <chris.smith@st.com> Signed-off-by: NStuart Menefy <stuart.menefy@st.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Stuart Menefy 提交于
This resolves a problem seen when using the Android dynamic linker. Sometimes the dynamic linker would seg-fault at start up and this was eventually traced to the handling of a COW fault for a page which was being modified by the linker. If there was no cache aliasing between the kernel and the user page, the page was not flushed, leaving the newly copied data in the D-cache. However when executing instructions from that page, the I-cache is filled directly from external memory, rather than the D-cache, and causing garbage to be executed. Signed-off-by: NStuart Menefy <stuart.menefy@st.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 14 1月, 2011 1 次提交
-
-
由 Andrea Arcangeli 提交于
pte alloc routines must wait for split_huge_page if the pmd is not present and not null (i.e. pmd_trans_splitting). The additional branches are optimized away at compile time by pmd_trans_splitting if the config option is off. However we must pass the vma down in order to know the anon_vma lock to wait for. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: NAndrea Arcangeli <aarcange@redhat.com> Acked-by: NRik van Riel <riel@redhat.com> Acked-by: NMel Gorman <mel@csn.ul.ie> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 11 1月, 2011 1 次提交
-
-
由 Paul Mundt 提交于
This adds in a callback to the machvec to allow platforms to do early reservations through memblock. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 01 12月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
This follows the ARM change c0177800 ("ARM: 6379/1: Assume new page cache pages have dirty D-cache") for the same rationale: There are places in Linux where writes to newly allocated page cache pages happen without a subsequent call to flush_dcache_page() (several PIO drivers including USB HCD). This patch changes the meaning of PG_arch_1 to be PG_dcache_clean and always flush the D-cache for a newly mapped page in update_mmu_cache(). This addresses issues seen with executing binaries from MMC, in addition to some of the other HCDs that don't explicitly do cache management for their pipe-in buffers. Requested-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 04 11月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
The nommu code has regressed somewhat in that 29BIT gets set for the SH-2/2A configs regardless of the fact that they are really 32BIT sans MMU or PMB. This does a bit of tidying to get nommu properly selecting 32BIT as it was before. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 02 11月, 2010 1 次提交
-
-
由 Uwe Kleine-König 提交于
"gadget", "through", "command", "maintain", "maintain", "controller", "address", "between", "initiali[zs]e", "instead", "function", "select", "already", "equal", "access", "management", "hierarchy", "registration", "interest", "relative", "memory", "offset", "already", Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
-
- 27 10月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
Implement get_user_pages_fast without locking in the fastpath on sh. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 15 10月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
This sets up a generic SRAM pool for CPUs and platform code to insert their otherwise unused memories into. A simple alloc/free interface is provided (lifed from avr32) for generic code. This only applies to tiny SRAMs that are otherwise unmanaged, and does not take in to account the more complex SRAMs sitting behind transfer engines, or that employ an I/D split. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 14 10月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
This first converts the PMB locking over to raw spinlocks, and secondly fixes up a nested locking issue that was triggering lockdep early on: swapper/0 is trying to acquire lock: (&pmbe->lock){......}, at: [<806be9bc>] pmb_init+0xf4/0x4dc but task is already holding lock: (&pmbe->lock){......}, at: [<806be98e>] pmb_init+0xc6/0x4dc other info that might help us debug this: 1 lock held by swapper/0: #0: (&pmbe->lock){......}, at: [<806be98e>] pmb_init+0xc6/0x4dc Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 13 10月, 2010 1 次提交
-
-
由 Yinghai Lu 提交于
We need to round memory regions correctly -- specifically, we need to round reserved region in the more expansive direction (lower limit down, upper limit up) whereas usable memory regions need to be rounded in the more restrictive direction (lower limit up, upper limit down). This introduces two set of inlines: memblock_region_memory_base_pfn() memblock_region_memory_end_pfn() memblock_region_reserved_base_pfn() memblock_region_reserved_end_pfn() Although they are antisymmetric (and therefore are technically duplicates) the use of the different inlines explicitly documents the programmer's intention. The lack of proper rounding caused a bug on ARM, which was then found to also affect other architectures. Reported-by: NRussell King <rmk@arm.linux.org.uk> Signed-off-by: NYinghai Lu <yinghai@kernel.org> LKML-Reference: <4CB4CDFD.4020105@kernel.org> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>
-
- 24 9月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
While sh previously had its own debugfs root, there now exists a common arch_debugfs_dir prototype, so we switch everything over to that. Presumably once more architectures start making use of this we'll be able to just kill off the stub kdebugfs wrapper. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 23 9月, 2010 1 次提交
-
-
由 matt mooney 提交于
Replace EXTRA_CFLAGS with ccflags-y. Signed-off-by: Nmatt mooney <mfm@muteddisk.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 16 8月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
This fixes up the nommu build with a stub definition for __flush_tlb_global(), now used by the reboot code. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 04 8月, 2010 2 次提交
-
-
由 Andrew Murray 提交于
This follows the x86 change off of memset() and on to an unconditional __GFP_ZERO for wrapping in to optimized page clearing by way of clear_highpage(). Signed-off-by: NAndrew Murray <amurray@mpc-data.co.uk> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Benjamin Herrenschmidt 提交于
CC: Paul Mundt <lethal@linux-sh.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
-
- 14 7月, 2010 1 次提交
-
-
由 Yinghai Lu 提交于
via following scripts FILES=$(find * -type f | grep -vE 'oprofile|[^K]config') sed -i \ -e 's/lmb/memblock/g' \ -e 's/LMB/MEMBLOCK/g' \ $FILES for N in $(find . -name lmb.[ch]); do M=$(echo $N | sed 's/lmb/memblock/g') mv $N $M done and remove some wrong change like lmbench and dlmb etc. also move memblock.c from lib/ to mm/ Suggested-by: NIngo Molnar <mingo@elte.hu> Acked-by: N"H. Peter Anvin" <hpa@zytor.com> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Signed-off-by: NYinghai Lu <yinghai@kernel.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
-
- 02 7月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
This provides a sledgehammer approach for clearing the TLBs, only to be used in cases where we know we will never want to use the mappings again and have no interest in preserving state. This also destroys wired entries. The primary use for this is when we are either entering or exiting the kernel completely, in the latter case as a precursor for CPU reset by MMU. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 21 6月, 2010 2 次提交
-
-
由 Paul Mundt 提交于
page_table_range_init() presently allocates a PUD page for the 3-level page table case on X2 TLB configurations on each successive call. This results in the previous PUD page being trampled when PMDs with an overlapping PUD are initialized. This case was triggered by putting persistent kmaps immediately below the fixmap range for highmem. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Julia Lawall 提交于
The function begins and ends with a read_lock. The latter is changed to a read_unlock. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @locked@ expression E1; position p; @@ read_lock(E1@p,...); @r exists@ expression x <= locked.E1; expression locked.E1; expression E2; identifier lock; position locked.p,p1,p2; @@ *lock@p1 (E1@p,...); ... when != E1 when != \(x = E2\|&x\) *lock@p2 (E1,...); // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Acked-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 18 5月, 2010 2 次提交
-
-
由 Paul Mundt 提交于
Now that the node 0 initialization code has been overhauled, kill off the now obsolete setup_memory() bits. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Paul Mundt 提交于
The reserve_crashkernel() definition is in asm/kexec.h which is only dragged in via linux/kexec.h if CONFIG_KEXEC is set. Just switch over to asm/kexec.h unconditionally to fix up the build. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 11 5月, 2010 2 次提交
-
-
由 Paul Mundt 提交于
The minimum section size for the PMB is 16M, so just always error out early if the specified size is too small. This permits us to unconditionally call in to pmb_bolt_mapping() with variable sizes without wasting a TLB and cache flush for the range. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Paul Mundt 提交于
This reworks much of the bootmem setup and initialization code allowing us to get rid of duplicate work between the NUMA and non-NUMA cases. The end result is that we end up with a much more flexible interface for supporting more complex topologies (fake NUMA, highmem, etc, etc.) which is entirely LMB backed. This is an incremental step for more NUMA work as well as gradually enabling migration off of bootmem entirely. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 10 5月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
This plugs in a memory init callback in the machvec to permit boards to wire up various bits of memory directly in to LMB. A generic machvec implementation is provided that simply wraps around the normal Kconfig-derived memory start/size. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 26 4月, 2010 3 次提交
-
-
由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Nick Piggin 提交于
As explained in commit 1c0fe6e3, we want to call the architecture independent oom killer when getting an unexplained OOM from handle_mm_fault, rather than simply killing current. Cc: linux-sh@vger.kernel.org Cc: linux-arch@vger.kernel.org Signed-off-by: NNick Piggin <npiggin@suse.de> Acked-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
由 Matt Fleming 提交于
There is a logic error in pmb_merge() that means we will incorrectly try to merge two 128MB PMB mappings into one mapping. However, 256MB isn't a valid PMB map size and pmb_merge() will actually drop the second 128MB mapping. This patch allows my SDK7786 board to boot when configured with CONFIG_MEMORY_SIZE=0x10000000. Signed-off-by: NMatt Fleming <matt@console-pimps.org>
-
- 20 4月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
This zeroes out the number of cache aliases in the cache info descriptors when hardware alias avoidance is enabled. This cuts down on the amount of flushing taken care of by common code, and also permits coherency control to be disabled for the single CPU and 4k page size case. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 19 4月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
This enables support for the hardware synonym avoidance handling on SH-X3 CPUs for the case where dcache aliases are possible. icache handling is retained, but we flip on broadcasting of the block invalidations due to the lack of coherency otherwise on SMP. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-
- 02 4月, 2010 1 次提交
-
-
由 Paul Mundt 提交于
While the MMUCR.URB and ITLB/UTLB differentiation works fine for all SH-4 and later TLBs, these features are absent on SH-3. This splits out local_flush_tlb_all() in to SH-4 and PTEAEX copies while restoring the old SH-3 one, subsequently fixing up the build. This will probably want some further reordering and tidying in the future, but that's out of scope at present. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
-