aboutsummaryrefslogtreecommitdiffstats
path: root/arch
Commit message (Collapse)AuthorAge
* [POWERPC] clk.h interface for platformsDomen Puncer2007-10-02
| | | | | | | | | | This provides an implementation of the <linux/clk.h> interface for arch/powerpc using a set of function pointers in clk_functions. Platforms that want to support this interface should fill clk_functions and select CONFIG_PPC_CLOCK in Kconfig. Signed-off-by: Domen Puncer <domen.puncer@telargo.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Inline u3msi_compose_msi_msg()Michael Ellerman2007-10-02
| | | | | | | | | | In the MPIC U3 MSI code, we call u3msi_compose_msi_msg() once for each MSI. This is overkill, as the address is per pci device, not per MSI. So setup the address once, and just set the data per MSI. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Simplify rtas_change_msi() error semanticsMichael Ellerman2007-10-02
| | | | | | | | | | | | | Currently rtas_change_msi() returns either the error code from RTAS, or if the RTAS call succeeded the number of irqs that were configured by RTAS. This makes checking the return value more complicated than it needs to be. Instead, have rtas_change_msi() check that the number of irqs configured by RTAS is equal to what we requested - and return an error otherwise. This makes the return semantics match the usual 0 for success, something else for error. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Simplify error logic in rtas_setup_msi_irqs()Michael Ellerman2007-10-02
| | | | | | | | | | rtas_setup_msi_irqs() doesn't need to call teardown() itself, the generic code will do this for us as long as we return a non-zero value. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Simplify error logic in u3msi_setup_msi_irqs()Michael Ellerman2007-10-02
| | | | | | | | | | u3msi_setup_msi_irqs() doesn't need to call teardown() itself, the generic code will do this for us as long as we return a non zero value. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Make sure to of_node_get() the result of pci_device_to_OF_node()Michael Ellerman2007-10-02
| | | | | | | | | pci_device_to_OF_node() returns the device node attached to a PCI device, but doesn't actually grab a reference - we need to do it ourselves. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Move embedded6xx into multiplatformArnd Bergmann2007-10-02
| | | | | | | | | The various embedded 6xx systems can easily coexist in one kernel together with the other 6xx based systems, so there is no strict reason to keep them separate. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] pseries: device node status can be "ok" or "okay"Linas Vepstas2007-10-02
| | | | | | | | | | | | | It seems that some versions of firmware will report a device node status as the string "okay". As we are not expecting this string, the device node will be ignored by the EEH subsystem. Which means EEH will not be enabled. When EEH is not enabled, PCI errors will be converted into Machine Check exceptions, and we'll have a very unhappy system. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix build errors when BLOCK=nEmil Medve2007-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These are the symptom error messages: CC arch/powerpc/kernel/setup_32.o In file included from include/linux/blkdev.h:17, from include/linux/ide.h:13, from arch/powerpc/kernel/setup_32.c:13: include/linux/bsg.h:67: warning: 'struct request_queue' declared inside parameter list include/linux/bsg.h:67: warning: its scope is only this definition or declaration, which is probably not what you want include/linux/bsg.h:71: warning: 'struct request_queue' declared inside parameter list In file included from arch/powerpc/kernel/setup_32.c:13: include/linux/ide.h:857: error: field 'wrq' has incomplete type CC arch/powerpc/kernel/ppc_ksyms.o In file included from include/linux/blkdev.h:17, from include/linux/ide.h:13, from arch/powerpc/kernel/ppc_ksyms.c:15: include/linux/bsg.h:67: warning: 'struct request_queue' declared inside parameter list include/linux/bsg.h:67: warning: its scope is only this definition or declaration, which is probably not what you want include/linux/bsg.h:71: warning: 'struct request_queue' declared inside parameter list In file included from arch/powerpc/kernel/ppc_ksyms.c:15: include/linux/ide.h:857: error: field 'wrq' has incomplete type The fix tries to use the smallest scope CONFIG_* symbols that will fix the build problem. In this case <linux/ide.h> needs to be included only if IDE=y or IDE=m were selected. Also, ppc_ide_md is needed only if BLK_DEV_IDE=y or BLK_DEV_IDE=m Moved the EXPORT_SYMBOL(ppc_ide_md) from ppc_ksysms.c next to its declaration in setup_32.c which made <linux/ide.h> not needed. With <linux/ide.h> gone from ppc_ksyms.c, <asm/cacheflush.h> is needed to address the following warnings and errors: CC arch/powerpc/kernel/ppc_ksyms.o arch/powerpc/kernel/ppc_ksyms.c:122: error: '__flush_icache_range' undeclared here (not in a function) arch/powerpc/kernel/ppc_ksyms.c:122: warning: type defaults to 'int' in declaration of '__flush_icache_range' arch/powerpc/kernel/ppc_ksyms.c:123: error: 'flush_dcache_range' undeclared here (not in a function) arch/powerpc/kernel/ppc_ksyms.c:123: warning: type defaults to 'int' in declaration of 'flush_dcache_range' Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Avoid pointless WARN_ON(irqs_disabled()) from panic codepathSatyam Sharma2007-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | > ------------[ cut here ]------------ > Badness at arch/powerpc/kernel/smp.c:202 comes when smp_call_function_map() has been called with irqs disabled, which is illegal. However, there is a special case, the panic() codepath, when we do not want to warn about this -- warning at that time is pointless anyway, and only serves to scroll away the *real* cause of the panic and distracts from the real bug. * So let's extract the WARN_ON() from smp_call_function_map() into all its callers -- smp_call_function() and smp_call_function_single() * Also, introduce another caller of smp_call_function_map(), namely __smp_call_function() (and make smp_call_function() a wrapper over this) which does *not* warn about disabled irqs * Use this __smp_call_function() from the panic codepath's smp_send_stop() We also end having to move code of smp_send_stop() below the definition of __smp_call_function(). Signed-off-by: Satyam Sharma <satyam@infradead.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Support setting affinity for U3/U4 MSI sourcesOlof Johansson2007-09-22
| | | | | | | | | | | Hook up affinity-setting for U3/U4 MSI interrupt sources. Tested on Quad G5 with myri10ge. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] add Kconfig option for optimizing for cellArnd Bergmann2007-09-22
| | | | | | | | | | Since the PPE on cell is an in-order core, it suffers significantly from wrong instruction scheduling. This adds a Kconfig option that enables passing -mtune=cell to gcc in order to generate object code that runs well on cell. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] cell: Don't cast the result of of_get_property()Jeremy Kerr2007-09-22
| | | | | | | The cast to u32 * isn't required, of_get_property returns a void *. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Convert define_machine(mpc885_ads) to C99 initializer syntaxTony Breeds2007-09-22
| | | | | | | | Make the define_machine() block for mpc885_ads more greppable and consistent with other examples in tree. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] mpc5200: Add cuimage support for mpc5200 boardsGrant Likely2007-09-22
| | | | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] mpc8349: Add linux,network-index to ethernet nodes in device treeGrant Likely2007-09-22
| | | | | | | | | | | | cuImage needs to know the logical index of the ethernet devices in order to assign mac addresses. This adds the needed properties. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David Gibson <david@gibson.dropbear.id.au> CC: Scott Wood <scottwood@freescale.com> CC: Kumar Gala <galak@kernel.crashing.org> CC: Timur Tabi <timur@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix ppc kernels after build-id additionMeelis Roos2007-09-22
| | | | | | | | | | | | This patch fixes arch/ppc kernels, at least for prep subarch, after build-id addition. Without this, kernels were 3 times the size and bootloader refused to load them. Now they are back to normal again. Tested only with Roland McGrath's "Use LDFLAGS_MODULE only for .ko links" patch applied - boots and works fine. Signed-off-by: Meelis Roos <mroos@linux.ee> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Prevent direct inclusion of <asm/rwsem.h>.Robert P. J. Day2007-09-22
| | | | | Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add Marvell mv64x60 udbg putc/getc functionsDale Farnsworth2007-09-22
| | | | | | | | | | | | | | | | | | Commit 69331af, "Fixes and cleanups for earlyprintk aka boot console", resulted in printk output prior to the initialization of the mpsc console driver not being printed. That commit causes the mpsc's CON_PRINTBUFFER flag to be cleared since udbg should have printed the previous output. I guess we can no longer ignore udbg. :) This patch provides udbg_putc() and udbg_getc() functions for the Marvell mv64x60 chips. These functions are enabled if an mv64x60 port is to be used as the console as determined from the device tree. Signed-off-by: Dale Farnsworth <dale@farnsworth.org> Acked-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] 4xx: Fix Sequoia MAL0 and EMAC dts entries.Valentine Barshak2007-09-20
| | | | | | | | | | | According to PowerPC 440EPx documentation, MAL0 is comprised of four channels (two transmit and two receive). Each channel is dedicated to one of two EMAC cores. This patch fixes Sequoia DTS MAL0 entry and EMAC entries, assigning correct channel numbers to EMACs. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* [POWERPC] 4xx: Fix Bamboo MAL0 dts entry.Valentine Barshak2007-09-20
| | | | | | | | | According to PowerPC 440EP documentation, MAL0 consists of 6 channels (4 transmit channels and 2 receive channels) This patch fixes Bamboo DTS MAL0 "num-rx-chans" entry. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* [POWERPC] Add 64-bit resources support to pci_iomapValentine Barshak2007-09-20
| | | | | | | | | The patch adds support for the 64-bit resources to the PCI iomap code. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* [POWERPC] 4xx: Implement udbg_getc() for 440Hollis Blanchard2007-09-19
| | | | | | | | Implement udbg_getc() for 440, which fixes xmon input. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* [POWERPC] 4xx: Convert Seqouia flash mappings to new bindingJosh Boyer2007-09-19
| | | | | | | | | A new binding for flash devices was recently introduced. This updates the Sequoia DTS to use the new binding and enabled MTD in the defconfig. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Stefan Roese <sr@denx.de>
* [POWERPC] 4xx: Convert Walnut flash mappings to new bindingJosh Boyer2007-09-19
| | | | | | | | A new binding for flash devices was recently introduced. This updates the Walnut DTS to use the new binding. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
* [POWERPC] cuimage for Bamboo boardJosh Boyer2007-09-19
| | | | | | | | | | | Add a cuboot wrapper for the Bamboo board. Additionally, we enable MAC address fixups for both cuboot and treeboot. This also removes some obsoleted linker declarations that have been moved into ops.h Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
* Merge branch 'linux-2.6'Paul Mackerras2007-09-19
|\
| * Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2007-09-19
| |\ | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] cpu-bugs64.c: GCC 3.3 constraint workaround [MIPS] DEC: Initialise ioasic_ssr_lock
| | * [MIPS] cpu-bugs64.c: GCC 3.3 constraint workaroundMaciej W. Rozycki2007-09-19
| | | | | | | | | | | | | | | | | | | | | | | | Add a workaround to address warnings generated on the "n" constraint by GCC 3.3 and below. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] DEC: Initialise ioasic_ssr_lockMaciej W. Rozycki2007-09-19
| | | | | | | | | | | | | | | | | | | | | | | | Fix the definition of the ioasic_ssr_lock spinlock to include a proper initialisation. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | Merge branch 'merge' of ↵Linus Torvalds2007-09-19
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Fix timekeeping on PowerPC 601 [POWERPC] Don't expose clock vDSO functions when CPU has no timebase [POWERPC] spusched: Fix null pointer dereference in find_victim
| | * | [POWERPC] Fix timekeeping on PowerPC 601Benjamin Herrenschmidt2007-09-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recent changes to the timekeeping code broke support for the PowerPC 601 processor which doesn't have the usual timebase facility but a slightly different thing called (yuck) the RTC. This fixes it, boot tested on an old 601 based PowerMac 7200. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * | [POWERPC] Don't expose clock vDSO functions when CPU has no timebaseBenjamin Herrenschmidt2007-09-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We forgot to remove the clock_gettime, clock_getres and get_tbfreq vDSO calls on CPUs that have no timebase such as 601 or 403 (old CPUs that have different mechanisms and for which the vDSO code will not work properly). This fixes it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * | [POWERPC] spusched: Fix null pointer dereference in find_victimChristoph Hellwig2007-09-19
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | find_victim can dereference a NULL pointer when iterating over the list of victim spus because list_mutex only guarantees spu->ct to be stable, but of course not to be non-NULL. Also fix find_victim to not call spu_unbind_context without list_mutex because that violates the above guarantee. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | x86-64: page faults from user mode are always user faultsLinus Torvalds2007-09-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Randy Dunlap noticed an interesting "crashme" behaviour on his dual Prescott Xeon setup, where he gets page faults with the error code having a zero "user" bit, but the register state points back to user mode. This may be a CPU microcode buglet triggered by some strange instruction pattern that crashme generates, and loading a microcode update seems to possibly have fixed it. Regardless, we really should trust the register state more than the error code, since it's really the register state that determines whether we can actually send a signal, or whether we're in kernel mode and need to oops/kill the process in the case of a page fault. Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | uml: fix irqstack crashJeff Dike2007-09-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a crash caused by an interrupt coming in when an IRQ stack is being torn down. When this happens, handle_signal will loop, setting up the IRQ stack again because the tearing down had finished, and handling whatever signals had come in. However, to_irq_stack returns a mask of pending signals to be handled, plus bit zero is set if the IRQ stack was already active, and thus shouldn't be torn down. This causes a problem because when handle_signal goes around the loop, sig will be zero, and to_irq_stack will duly set bit zero in the returned mask, faking handle_signal into believing that it shouldn't tear down the IRQ stack and return thread_info pointers back to their original values. This will eventually cause a crash, as the IRQ stack thread_info will continue pointing to the original task_struct and an interrupt will look into it after it has been freed. The fix is to stop passing a signal number into to_irq_stack. Rather, the pending signals mask is initialized beforehand with the bit for sig already set. References to sig in to_irq_stack can be replaced with references to the mask. [akpm@linux-foundation.org: use UL] Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | xen: don't bother trying to set cr4Jeremy Fitzhardinge2007-09-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Xen ignores all updates to cr4, and some versions will kill the domain if you try to change its value. Just ignore all changes. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | uml: use correct type in BLKGETSIZE ioctlNicolas George2007-09-19
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I found a type mismatch in UML that makes host block devices unusable as ubd devices on x86_64 and other 64 bits systems (segfault of the mm subsystem): In block/ioctl.c, the following lines show that the BLKGETSIZE ioctl expects a pointer to a long: case BLKGETSIZE: if ((bdev->bd_inode->i_size >> 9) > ~0UL) return -EFBIG; return put_ulong(arg, bdev->bd_inode->i_size >> 9); In arch/um/os-Linux/file.c, os_file_size calls it with an int. The ioctl_list man page should be fixed as well. Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * [SPARC64]: Warn user if cpu is ignored.David S. Miller2007-09-16
| | | | | | | | | | | | | | | | | | When NR_CPUS is smaller than the cpu probed, let the user know that the cpu won't be used. Suggested by Al Viro. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Fix lockdep, particularly on SMP.David S. Miller2007-09-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As noted by Al Viro, when we try to call prom_set_trap_table() in the SMP trampoline code we try to take the PROM call spinlock which doesn't work because the current thread pointer isn't valid yet and lockdep depends upon that being correct. Furthermore, we cannot set the current thread pointer register because it can't be properly dereferenced until we return from prom_set_trap_table(). Kernel TLB misses only work after that call. So do the PROM call to set the trap table directly instead of going through the OBP library C code, and thus avoid the lock altogether. These calls are guarenteed to be serialized fully. Since there are now no calls to the prom_set_trap_table{_sun4v}() library functions, they can be deleted. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [SPARC64]: Update defconfig.David S. Miller2007-09-16
| | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge git://git.linux-xtensa.org/kernel/xtensa-feedLinus Torvalds2007-09-14
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.linux-xtensa.org/kernel/xtensa-feed: [patch 1/2] Xtensa: enable arbitary tty speed setting ioctls [patch 2/2] xtensa console.c: remove duplicate #include [XTENSA] Add support for cache-aliasing [XTENSA] Add kernel module support [XTENSA] Add support for executable/non-executable feature in the mmu [XTENSA] Use the generic version of get_order [XTENSA] Initialize semaphore_wake_lock [XTENSA] Add typecast macro for constants [XTENSA] Fix timer instabilities. [XTENSA] Fix fadvise64_64 [XTENSA] Remove extraneous include statement [XTENSA] Move string-io functions to io.c from pci.c [XTENSA] Move pre-initialized structures to init_task.c [XTENSA] Add freestanding option to CFLAGS [XTENSA] Add getpgrp system-call to unistd.h [XTENSA] add missing system calls [XTENSA] fix wrong usage of __init and __initdata in traps.c
| | * [patch 2/2] xtensa console.c: remove duplicate #includeFrederik Deweerdt2007-08-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes one of the two linux/console.h included in arch/xtensa/platform-iss/console.c Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Zankel <chris@zankel.net>
| | * [XTENSA] Add support for cache-aliasingChris Zankel2007-08-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for processors that have cache-aliasing issues, such as the Stretch S5000 processor. Cache-aliasing means that the size of the cache (for one way) is larger than the page size, thus, a page can end up in several places in cache depending on the virtual to physical translation. The method used here is to map a user page temporarily through the auto-refill way 0 and of of the DTLB. We probably will want to revisit this issue and use a better approach with kmap/kunmap. Signed-off-by: Chris Zankel <chris@zankel.net>
| | * [XTENSA] Add kernel module supportChris Zankel2007-08-27
| | | | | | | | | | | | | | | | | | Add kernel module support. Signed-off-by: Chris Zankel <chris@zankel.net>
| | * [XTENSA] Add support for executable/non-executable feature in the mmuChris Zankel2007-08-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | Newer processor versions starting with Xtensa6/LX2 support an 'executable' bit for memory pages. This bit replaces the 'valid' bit, so it must be always set to one for older processor versions. To mark a page invalid, we now set the cache-attributes to b11, which is backward compatible. Signed-off-by: Chris Zankel <chris@zankel.net>
| | * [XTENSA] Initialize semaphore_wake_lockChris Zankel2007-08-27
| | | | | | | | | | | | | | | | | | Initialize semaphore_wake_lock. Signed-off-by: Chris Zankel <chris@zankel.net>
| | * [XTENSA] Fix timer instabilities.Chris Zankel2007-08-27
| | | | | | | | | | | | | | | | | | The timer code could have missed a tick. Signed-off-by: Chris Zankel <chris@zankel.net>
| | * [XTENSA] Fix fadvise64_64Chris Zankel2007-08-27
| | | | | | | | | | | | | | | | | | | | | | | | Xtensa passes long long arguments in a even/odd register pair, so we also need to shuffle the arguments when passed through the system call to avoid an empty argument register. Signed-off-by: Chris Zankel <chris@zankel.net>
| | * [XTENSA] Move string-io functions to io.c from pci.cChris Zankel2007-08-27
| | | | | | | | | | | | | | | | | | | | | The string-io functions (outs{bwl}, ins{bwl}) are independent from the PCI option and should be in a separate file. Signed-off-by: Chris Zankel <chris@zankel.net>
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-13 14:47:34 -0500