- 19 9月, 2007 30 次提交
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由 Stephen Rothwell 提交于
It is just a C char array, so declare it thusly. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Stephen Rothwell 提交于
Create a helper function (alloc_maybe_bootmem) that is marked __init_refok to limit the chances of mistakenly referring to other __init routines. WARNING: vmlinux.o(.text+0x2a9c4): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.update_dn_pci_info' and '.pci_dn_reconfig_notifier') WARNING: vmlinux.o(.text+0x36430): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.mpic_msi_init_allocator' and '.find_ht_magic_addr') WARNING: vmlinux.o(.text+0x5e804): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config') WARNING: vmlinux.o(.text+0x5e8e8): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config') WARNING: vmlinux.o(.text+0x5e968): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config') Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Domen Puncer 提交于
Low-power mode implementation for Lite5200b. Some I/O registers are also saved here. A recent U-Boot that supports this (lite5200b_PM_config) is needed. Signed-off-by: NDomen Puncer <domen.puncer@telargo.com> Signed-off-by: NSylvain Munaut <tnt@246tNt.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
This patch adds DEFINE_SPUFS_ATTRIBUTE(), a wrapper around DEFINE_SIMPLE_ATTRIBUTE which does the specified locking for the get routine for us. Unfortunately we need two get routines (a locked and unlocked version) to support the coredump code. This hides one of those (the locked version) inside the macro foo. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
Currently the spu coredump code doesn't respect the ulimit, it should. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
Rework spufs_coredump_extra_notes_write() to check for and return errors. If we're coredumping to a pipe we can't trust file->f_pos, we need to maintain the foffset value passed to us. The cleanest way to do this is to have the low level write routine increment foffset when we've successfully written. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
To start with, arch_notes_size() etc. is a little too ambiguous a name for my liking, so change the function names to be more explicit. Calling through macros is ugly, especially with hidden parameters, so don't do that, call the routines directly. Use ARCH_HAVE_EXTRA_ELF_NOTES as the only flag, and based on it decide whether we want the extern declarations or the empty versions. Since we have empty routines, actually use them in the coredump code to save a few #ifdefs. We want to change the handling of foffset so that the write routine updates foffset as it goes, instead of using file->f_pos (so that writing to a pipe works). So pass foffset to the write routine, and for now just set it to file->f_pos at the end of writing. It should also be possible for the write routine to fail, so change it to return int and treat a non-zero return as failure. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
Because spufs might be built as a module, we can't have other parts of the kernel calling directly into it, we need stub routines that check first if the module is loaded. Currently we have two structures which hold callbacks for these stubs, the syscalls are in spufs_calls and the coredump calls are in spufs_coredump_calls. In both cases the logic for registering/unregistering is essentially the same, so we can simplify things by combining the two. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Acked-by: NArnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Acked-by: NArnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
The SPUFS attribute get routines take a void * because the generic attribute code doesn't know what sort of data it's passing around. However our internal __spufs_get_foo() routines can take a spu_context * directly, which saves plonking it in and out of a void * again. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Acked-by: NArnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
The spufs_coredump_read array is NULL terminated, and we also store the size. We only need one or the other, and the other arrays in file.c are NULL terminated, so do that. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
Because the SPU coredump code might be built as part of a module (spufs), we have a stub which is called by the coredump code, this routine then calls into spufs if it's loaded. Unfortunately the stub returns -ENOSYS if spufs is not loaded, which is interpreted by the coredump code as an extra note size of -38 bytes. This leads to a corrupt core dump. If spufs is not loaded there will be no SPU ELF notes to write, and so the extra notes size will be == 0. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Acked-by: NArnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
The routine to dump the local store, __spufs_mem_read(), does not take the spu_lslr_RW value into account - so we shouldn't check it when we're calculating the size either. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Acked-by: NArnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
Unfortunately GDB expects some of the SPU coredump values to be identical in format to what is found in spufs. This means we need to dump some of the values as ASCII strings, not the actual values. Because we don't know what the values will be, we always print the values with the format "0x%.16lx", that way we know the result will be 19 bytes. do_coredump_read() doesn't take a __user buffer, so remove the annotation, and because we know that it's safe to just snprintf() directly to it. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
The spufs_coredump_reader array contains the size of the data that will be returned by the read routine. Currently these are specified as literals, and though some are obvious, sizeof(u32) == 4, others are not, 69 * 8 == ??? Instead, use sizeof() whatever type is returned by each routine, or in the case of spufs_mem_read() the #define LS_SIZE. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
It makes sense to stop the SPU processes as soon as possible. Also if we dont acquire_saved() I think there's a possibility that the value in csa.priv2.spu_lslr_RW won't be accurate. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
Remove the ctx_info struct entirely, and also the ctx_info_list. This fixes a race where two processes can clobber each other's ctx_info structs. Instead of using the list, we just repeat the search through the file descriptor table. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
Extract the logic for searching through the file descriptors for spu contexts into a separate routine, coredump_next_context(), so we can use it elsewhere in future. In the process we flatten the for loop, and move the NOSCHED test into coredump_next_context(). Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Jeremy Kerr 提交于
We don't want SPE programs to be able to flood the kernel log by invoking the SPE callback handler, so don't enable DEBUG for spu_callbacks.c by default. Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Jeremy Kerr 提交于
Based on an original patch from Masato Noguchi <Masato.Noguchi@jp.sony.com>. We're currently not restoring the SPE decrementer as specified by the CBE handbook. This change fixes our implementation to match, and makes the function read more like the docs. Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Jeremy Kerr 提交于
spu_create and spu_run are wrapped by the cell syscall layer, so we don't need the asmlinkage. Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Jeremy Kerr 提交于
At present, a built-in spufs will not use the spufs_calls callbacks, but directly call sys_spu_create. This saves us an indirect branch, but means we have duplicated functions - one for CONFIG_SPU_FS=y and one for =m. This change unifies the spufs syscall path, and provides access to the spufs_calls structure through a get/put pair. At present, the only user of the spufs_calls structure is spu_syscalls.c, but this will facilitate adding the coredump calls later. Everyone likes numbers, right? Here's a before/after comparison with CONFIG_SPU_FS=y, doing spu_create(); close(); 64k times. Before: [jk@cell ~]$ time ./spu_create performing 65536 spu_create calls real 0m24.075s user 0m0.146s sys 0m23.925s After: [jk@cell ~]$ time ./spu_create performing 65536 spu_create calls real 0m24.777s user 0m0.141s sys 0m24.631s So, we're adding around 11us per syscall, at the benefit of having only one syscall path. Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Andre Detsch 提交于
Affinity reference point location (gang->aff_ref_spu) is reset when the whole gang is descheduled. However, the last member of a gang can be descheduled while we are trying to schedule another member of the gang. This was leading to a race condition, and the code was using gang->aff_ref_spu in an unsafe manner. By holding the gang->aff_mutex a little bit longer, and increment gang->aff_sched_count (which controls when gang->aff_ref_spu should be reset) a little bit earlier, the problem is fixed. Signed-off-by: NAndre Detsch <adetsch@br.ibm.com> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Sebastian Siewior 提交于
According to the comment in spufs_init_isolated_loader(), the isolated loader should be aligned on a 16 byte boundary. ARCH_{KMALLOC,SLAB}_MINALIGN is not defined so only 8 byte alignment is guaranteed. This enforces alignment via __get_free_pages. Signed-off-by: NSebastian Siewior <sebastian@breakpoint.cc> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Jeremy Kerr 提交于
Based on an initial patch from Sebastian Siewior <sebastian@breakpoint.cc> spu_harvest isn't used, remove it. Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Jeremy Kerr 提交于
do_spu_create doesn't need the asmlinkage qualifier; remove it. Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Sebastian Siewior 提交于
There are a few symbols used only in one file within spufs; this change makes them static where suitable. Signed-off-by: NSebastian Siewior <sebastian@breakpoint.cc> Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Olaf Hering 提交于
drivers/serial/pmac_zilog.c:1590: warning: format '%d' expects type 'int', but argument 3 has type 'pm_message_t' Signed-off-by: NOlaf Hering <olaf@aepfle.de> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Neuling 提交于
After talking to an IBM POWER hypervisor (PHYP) design and development guy, there seems to be no need for memory barriers when updating the SLB shadow buffer provided we only update it from the current CPU, which we do. Also, these guys see no need in the future for these barriers. Signed-off-by: NMichael Neuling <mikey@neuling.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Jesper Juhl 提交于
kmalloc() returns a void pointer so there is absolutely no need to cast it in ibmebus_chomp(). Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 17 9月, 2007 1 次提交
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由 Adrian Bunk 提交于
Current status of APUS: - arch/powerpc/: removed in 2.6.23 - arch/ppc/: marked BROKEN since 2 years This therefore removes the remaining parts of APUS support from arch/ppc, include/asm-ppc, arch/powerpc and include/asm-powerpc. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 14 9月, 2007 9 次提交
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由 Anton Vorontsov 提交于
Enabled using SPI controller on the MPC832x RDB board. We currently use a modalias of "spidev" as a place holder (replace with "mmc_spie") until the mmc_spi driver support is merged in. This gets us the ability to test SPI until then. Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Anton Vorontsov 提交于
Add helper function to setup SPI bus/device information Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 John Rigby 提交于
Use idx as index into mpc52xx_uart_nodes instead of i Signed-off-by: NJohn Rigby <jrigby@freescale.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Timur Tabi 提交于
The current definition of struct ccsr_guts in immap_86xx.h was for 85xx. This patch fixes that and replaces the vague integer types with sized types of the correct endianness. The unused struct ccsr_pci is also deleted. Signed-off-by: NTimur Tabi <timur@freescale.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Timur Tabi 提交于
This patch adds the clrsetbits_xxx() macros, which are used to set and clear multiple bits in a single read-modify-write operation. Specify the bits to clear in the 'clear' parameter and the bits to set in the 'set' parameter. These macros can also be used to set a multiple-bit bit pattern using a mask, by specifying the mask in the 'clear' parameter and the new bit pattern in the 'set' parameter. There are big-endian and little-endian versions for 8, 16, 32, and 64 bits. Signed-off-by: NTimur Tabi <timur@freescale.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Anton Vorontsov 提交于
This is needed to configure and control QE pario pins from the kernel. Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Scott Wood 提交于
These I/O accessors will be used in code under drivers/, which is expected to still work in arch/ppc. Signed-off-by: NScott Wood <scottwood@freescale.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Kumar Gala 提交于
We get warnings like the following from the various ppc32 head*.S files: WARNING: vmlinux.o(.text+0x358): Section mismatch: reference to .init.text:early_init (between 'skpinv' and 'interrupt_base') WARNING: vmlinux.o(.text+0x380): Section mismatch: reference to .init.text:machine_init (between 'skpinv' and 'interrupt_base') WARNING: vmlinux.o(.text+0x384): Section mismatch: reference to .init.text:MMU_init (between 'skpinv' and 'interrupt_base') WARNING: vmlinux.o(.text+0x3aa): Section mismatch: reference to .init.text:start_kernel (between 'skpinv' and 'interrupt_base') WARNING: vmlinux.o(.text+0x3ae): Section mismatch: reference to .init.text:start_kernel (between 'skpinv' and 'interrupt_base') Added a .text.head section simliar to what other architectures do since modpost already excludes this from its warnings. Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Kumar Gala 提交于
Make it so that SPE support can be determined at runtime. This is similiar to how we handle AltiVec. This allows us to have SPE support built in and work on processors with and without SPE. Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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