- 04 1月, 2009 5 次提交
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由 Rusty Russell 提交于
Impact: Reduce memory usage, use new API. This is part of an effort to reduce structure sizes for machines configured with large NR_CPUS. cpumask_t gets replaced by cpumask_var_t, which is either struct cpumask[1] (small NR_CPUS) or struct cpumask * (large NR_CPUS). (Changes to powernow-k* by <travis>.) Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NMike Travis <travis@sgi.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Rusty Russell 提交于
Impact: reduce stack size, use new API. Replace cpumask_t with cpumask_var_t. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NMike Travis <travis@sgi.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Mike Travis 提交于
Impact: Reduce future system panics due to cpumask operations using NR_CPUS Insure that code does not look at bits >= nr_cpu_ids as when cpumasks are allocated based on nr_cpu_ids, these extra bits will not be defined. Also some other minor updates: * change in to use cpu accessor function set_cpu_present() instead of directly accessing cpu_present_map w/cpu_clear() [arch/x86/kernel/reboot.c] * use cpumask_of() instead of &cpumask_of_cpu() [arch/x86/kernel/reboot.c] * optimize some cpu_mask_to_apicid_and functions. Signed-off-by: NMike Travis <travis@sgi.com> Acked-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Mike Travis 提交于
Impact: enables /sys/devices/system/cpu/{kernel_max,offline} user interface By setting total_cpus, the drivers/base/cpu.c will display the values of kernel_max (NR_CPUS-1) and the offlined cpu map. Signed-off-by: NMike Travis <travis@sgi.com> Acked-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Impact: build fix on ia64 ia64's default_affinity_write() still had old cpumask_t usage: /home/mingo/tip/kernel/irq/proc.c: In function `default_affinity_write': /home/mingo/tip/kernel/irq/proc.c:114: error: incompatible type for argument 1 of `is_affinity_mask_valid' make[3]: *** [kernel/irq/proc.o] Error 1 make[3]: *** Waiting for unfinished jobs.... update it to cpumask_var_t. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 03 1月, 2009 2 次提交
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由 Rusty Russell 提交于
Like fls, but can't be handed 0 and returns the bit number. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Rusty Russell 提交于
Like fls, but can't be handed 0 and returns the bit number. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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- 01 1月, 2009 11 次提交
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由 Rusty Russell 提交于
Impact: Reduce stack usage, use new cpumask API. ALPHA mod! Main change is that irq_default_affinity becomes a cpumask_var_t, so treat it as a pointer (this effects alpha). Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Rusty Russell 提交于
Impact: New API The old topology_core_siblings() and topology_thread_siblings() return a cpumask_t; these new ones return a (const) struct cpumask *. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NMike Travis <travis@sgi.com>
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由 Rusty Russell 提交于
Impact: New API The old topology_core_siblings() and topology_thread_siblings() return a cpumask_t; these new ones return a (const) struct cpumask *. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NMike Travis <travis@sgi.com>
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由 Rusty Russell 提交于
Impact: New API The old topology_core_siblings() and topology_thread_siblings() return a cpumask_t; these new ones return a (const) struct cpumask *. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NMike Travis <travis@sgi.com>
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由 Rusty Russell 提交于
Impact: New API The old topology_core_siblings() and topology_thread_siblings() return a cpumask_t; these new ones return a (const) struct cpumask *. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NMike Travis <travis@sgi.com>
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由 Rusty Russell 提交于
Like fls, but can't be handed 0 and returns the bit number. (I broke this arch in linux-next by using __fls in generic code). Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Rusty Russell 提交于
Like fls, but can't be handed 0 and returns the bit number. (I broke this arch in linux-next by using __fls in generic code). Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Acked-by: NMike Frysinger <vapier@gentoo.org>
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由 Rusty Russell 提交于
Like fls, but can't be handed 0 and returns the bit number. (I broke this arch in linux-next by using __fls in generic code). Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Rusty Russell 提交于
This is defined in linux/cpumask.h (included in this file already), and this is now defined differently. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Cc: linux-parisc@vger.kernel.org
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由 Rusty Russell 提交于
Impact: CPU iterator bugfixes Percpu areas are only allocated for possible cpus. In general, you shouldn't access random cpu's percpu areas. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NMike Travis <travis@sgi.com> Acked-by: NIngo Molnar <mingo@elte.hu> Acked-by: NHirokazu Takata <takata@linux-m32r.org>
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由 Rusty Russell 提交于
Impact: fix IA64 compile Fortunately, they have exactly the same semantics. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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- 30 12月, 2008 2 次提交
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由 Matias Zabaljauregui 提交于
This patch moves the initial guest page table creation code to the host, so the launcher keeps working with PAE enabled configs. Signed-off-by: NMatias Zabaljauregui <zabaljauregui@gmail.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Rusty Russell 提交于
This doesn't really matter, since s390 pagesize is 4k anyway. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Acked-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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- 29 12月, 2008 17 次提交
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由 Sergio Luis 提交于
Impact: fix section mismatch warning Commit b2bb8554 ("x86: Remove cpumask games in x86/kernel/cpu/intel_cacheinfo.c") introduced get_cpu_leaves(), which references __cpuinit cpuid4_cache_lookup(). Mark get_cpu_leaves() with a __cpuinit annotation. Signed-off-by: NSergio Luis <sergio@larces.uece.br> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Eric Miao 提交于
PXA27x and later processors support overlay1 and overlay2 on-top of the base framebuffer (although under-neath the base is also possible). They support palette and no-palette RGB formats, as well as YUV formats (only available on overlay2). These overlays have dedicated DMA channels and behave in a similar way as a framebuffer. This heavily simplified and re-structured work is based on the original pxafb_overlay.c (which is pending for mainline merge for a long time). The major problems with this pxafb_overlay.c are (if you are interested in the history): 1. heavily redundant (the control logics for overlay1 and overlay2 are actually identical except for some small operations, which are now abstracted into a 'pxafb_layer_ops' structure) 2. a lot of useless and un-tested code (two workarounds which are now fixed on mature silicons) 3. cursorfb is actually useless, hardware cursor should not be used this way, and the code was actually un-tested for a long time. The code in this patch should be self-explanatory, I tried to add minimum comments. As said, this is basically simplified, there are several things still on the pending list: 1. palette mode is un-supported and un-tested (although re-using the palette code of the base framebuffer is actually very easy now with previous clean-up patches) 2. fb_pan_display for overlay(s) is un-supported 3. the base framebuffer can actually be abstracted by 'pxafb_layer' as well, which will help further re-use of the code and keep a better and consistent structure. (This is the reason I named it 'pxafb_layer' instead of 'pxafb_overlay' or something alike) See Documentation/fb/pxafb.txt for additional usage information. Signed-off-by: NEric Miao <eric.miao@marvell.com> Cc: Rodolfo Giometti <giometti@linux.it> Signed-off-by: NEric Miao <ycmiao@ycmiao-hp520.(none)>
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由 Eric Miao 提交于
1. introduce var_to_depth() to calculate the color depth including the transparency bit 2. the conversion from 'fb_var_screeninfo' to LCCR3 BPP bits can be re- used by overlays (in OVLxC1), thus an individual pxafb_var_to_bpp() has been separated out. 3. pxafb_setmode() should really set the color bitfields correctly at begining, introduce a pxafb_set_pixfmt() for this 4. allow user apps to specify color formats within fb_var_screeninfo, and checking of this in pxafb_check_var() has been simplified as below: a) pxafb_var_to_bpp() should pass - which means a basically correct bits_per_pixel and color depth setting b) the RGBT bitfields are then forced into supported values by pxafb_set_pixfmt() Signed-off-by: NEric Miao <eric.miao@marvell.com> Signed-off-by: NEric Miao <ycmiao@ycmiao-hp520.(none)>
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由 Eric Miao 提交于
Add the palette format support for LCCR4_PAL_FOR_3, and fix the issue of LCCR4 being never assigned. Also remove the useless pxafb_set_truecolor(). Signed-off-by: NEric Miao <eric.miao@marvell.com> Signed-off-by: NEric Miao <ycmiao@ycmiao-hp520.(none)>
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由 Eric Miao 提交于
dma branching is enabled by extending the current setup_frame_dma() function to allow a 2nd set of frame/palette dma descriptors to be used. As a result, pxafb_dma_buff.dma_desc[], pxafb_dma_buff.pal_desc[] and pxafb_info.fdadr[] are doubled. This allows maximum re-use of the current dma setup code, although the pxafb_info.fdadr[xx] for FBRx register values looks a bit odd. Signed-off-by: NEric Miao <eric.miao@marvell.com> Signed-off-by: NEric Miao <ycmiao@ycmiao-hp520.(none)>
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由 Eric Miao 提交于
The amount of video memory size is decided according to the following order: 1. <xres> x <yres> x <bits_per_pixel> by default, which is the backward compatible way 2. size specified in platform data 3. size specified in module parameter 'options' string or specified in kernel boot command line (see updated Documentation/fb/pxafb.txt) And now since the memory is allocated from system memory, the pxafb_mmap can be removed and the default fb_mmap() should be working all right. Also, since we now have introduced the 'struct pxafb_dma_buff' for DMA descriptors and palettes, the allocation can be separated cleanly. NOTE: the LCD DMA actually supports chained transfer (i.e. page-based transfers), to simplify the logic and keep the performance (with less TLB misses when accessing from memory mapped user space), the memory is allocated by alloc_pages_*() to ensures it's physical contiguous. Signed-off-by: NEric Miao <eric.miao@marvell.com> Signed-off-by: NEric Miao <ycmiao@ycmiao-hp520.(none)>
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由 Eric Miao 提交于
As Nicolas and Russell pointed out, CLOCK_TICK_RATE is no more a constant on PXA when multiple processors and platforms are selected, change TIMER_FREQ in rtc-sa1100.c into a variable. Since the code to decide the clock tick rate is re-used from timer.c, introduce a common get_clock_tick_rate() for this. Signed-off-by: NEric Miao <eric.miao@marvell.com> Acked-by: NNicolas Pitre <nico@marvell.com>
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由 Eric Miao 提交于
Signed-off-by: NEric Miao <eric.miao@marvell.com>
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由 FUJITA Tomonori 提交于
The block layer dropped the virtual merge feature (b8b3e16c). BIO_VMERGE_BOUNDARY definition is meaningless now. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Jens Axboe 提交于
The mm->ioctx_list is currently protected by a reader-writer lock, so we always grab that lock on the read side for doing ioctx lookups. As the workload is extremely reader biased, turn this into an rcu hlist so we can make lookup_ioctx() lockless. Get rid of the rwlock and use a spinlock for providing update side exclusion. There's usually only 1 entry on this list, so it doesn't make sense to look into fancier data structures. Reviewed-by: NJeff Moyer <jmoyer@redhat.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Ilya Yanok 提交于
This adds support for 16k and 64k page sizes on PowerPC 44x processors. The PGDIR table is much smaller than a page when using 16k or 64k pages (512 and 32 bytes respectively) so we allocate the PGDIR with kzalloc() instead of __get_free_pages(). One PTE table covers rather a large memory area when using 16k or 64k pages (32MB or 512MB respectively), so we can easily put FIXMAP and PKMAP in the area covered by one PTE table. Signed-off-by: NYuri Tikhonov <yur@emcraft.com> Signed-off-by: NVladimir Panfilov <pvr@emcraft.com> Signed-off-by: NIlya Yanok <yanok@emcraft.com> Acked-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Hollis Blanchard 提交于
Ensure that total memory size is page-aligned, because otherwise mark_bootmem() gets upset. This error case was triggered by using 64 KiB pages in the kernel while arch/powerpc/boot/4xx.c arbitrarily reduced the amount of memory by 4096 (to work around a chip bug that affects the last 256 bytes of physical memory). Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Finn Thain 提交于
Fix the warning: trigraph ??/ ignored, use -trigraphs to enable caused by the recent removal of -traditional option. Signed-off-by: NFinn Thain <fthain@telegraphics.com.au> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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由 Finn Thain 提交于
No-one seems to know how to mask individual baboon interrupts, so we just mask the umbrella IRQ. This will work as long as only the IDE driver uses the baboon chip (it can't deadlock). Use mac_enable_irq/mac_disable_irq rather than enable_irq/disable_irq because the latter routines count the depth of nested calls which triggers a warning and call trace because IRQ_NUBUS_C is enabled twice in a row (once when the baboon handler is registered, and once when the IDE IRQ is registered). Signed-off-by: NFinn Thain <fthain@telegraphics.com.au> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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由 Finn Thain 提交于
Remove some more cruft from machw.h and drop the #include where it isn't needed. Signed-off-by: NFinn Thain <fthain@telegraphics.com.au> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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由 Finn Thain 提交于
No behavioural changes, just cleanups and better documentation. Signed-off-by: NFinn Thain <fthain@telegraphics.com.au> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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由 Finn Thain 提交于
Reinstate the Mac hardware clock for CUDA ADB and Mac II ADB models. It doesn't work properly on Mac IIsi ADB and PMU ADB yet, so leave them out. Signed-off-by: NFinn Thain <fthain@telegraphics.com.au> Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
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- 27 12月, 2008 3 次提交
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由 Sam Ravnborg 提交于
It is counter intuitive to have the select listed as part of the PCI option. Move the select to the SPARC64 specific part of the config. PCI_MSI has a dependency on PCI so it does not harm to have it always selected. Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Sam Ravnborg 提交于
SUN_IO is always 'y' so drop it and thus killing an ifdef/endif pair Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Sam Ravnborg 提交于
While doing this use standard names for start/end so we could use definitions straight from asm-generic for all the typical symbols. This also allowed us to drop the use of PROVIDE in the linker script so sprc is less non-standard on this area. Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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