summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/kernel/rtas.c
Commit message (Collapse)AuthorAgeFilesLines
* powerpc: Zero fill the return values of rtas argument bufferNathan Fontenot2008-08-111-2/+3
| | | | | | | | | | | | | | | | The kernel copy of the rtas args struct contains the return value(s) for the specified rtas call. These are copied back to user space with the assumption that every value has been set by the rtas call, which turns out to be not always true. Thus userspace can see random values and think the call failed when in fact it succeeded, but for some reason didn't set one of the return values. This fixes the problem by zeroing out the return value fields of the rtas args struct before processing the rtas call. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge commit 'origin/master'Benjamin Herrenschmidt2008-07-161-1/+1
|\ | | | | | | | | | | | | | | Manual merge of: arch/powerpc/Kconfig arch/powerpc/kernel/stacktrace.c arch/powerpc/mm/slice.c arch/ppc/kernel/smp.c
| * on_each_cpu(): kill unused 'retry' parameterJens Axboe2008-06-261-1/+1
| | | | | | | | | | | | | | | | | | It's not even passed on to smp_call_function() anymore, since that was removed. So kill it. Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | [POWERPC] Fix sparse warnings in arch/powerpc/kernelMichael Ellerman2008-05-141-3/+3
|/ | | | | | | | | | | | | | | | | | Make a few things static in lparcfg.c Make init and exit routines static in rtas_flash.c Make things static in rtas_pci.c Make some functions static in rtas.c Make fops static in rtas-proc.c Remove unneeded extern for do_gtod in smp.c Make clocksource_init() static in time.c Make last_tick_len and ticklen_to_xs static in time.c Move the declaration of the pvr per-cpu into smp.h Make kexec_smp_down() and kexec_stack static in machine_kexec_64.c Don't return void in arch_teardown_msi_irqs() in msi.c Move declaration of GregorianDay()into asm/time.h Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge branch 'master' of ↵Linus Torvalds2008-04-211-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (202 commits) [POWERPC] Fix compile breakage for 64-bit UP configs [POWERPC] Define copy_siginfo_from_user32 [POWERPC] Add compat handler for PTRACE_GETSIGINFO [POWERPC] i2c: Fix build breakage introduced by OF helpers [POWERPC] Optimize fls64() on 64-bit processors [POWERPC] irqtrace support for 64-bit powerpc [POWERPC] Stacktrace support for lockdep [POWERPC] Move stackframe definitions to common header [POWERPC] Fix device-tree locking vs. interrupts [POWERPC] Make pci_bus_to_host()'s struct pci_bus * argument const [POWERPC] Remove unused __max_memory variable [POWERPC] Simplify xics direct/lpar irq_host setup [POWERPC] Use pseries_setup_i8259_cascade() in pseries_mpic_init_IRQ() [POWERPC] Turn xics_setup_8259_cascade() into a generic pseries_setup_i8259_cascade() [POWERPC] Move xics_setup_8259_cascade() into platforms/pseries/setup.c [POWERPC] Use asm-generic/bitops/find.h in bitops.h [POWERPC] 83xx: mpc8315 - fix USB UTMI Host setup [POWERPC] 85xx: Fix the size of qe muram for MPC8568E [POWERPC] 86xx: mpc86xx_hpcn - Temporarily accept old dts node identifier. [POWERPC] 86xx: mark functions static, other minor cleanups ...
| * [POWERPC] Replace remaining __FUNCTION__ occurrencesHarvey Harrison2008-04-011-1/+1
| | | | | | | | | | | | | | | | | | __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [LIB]: Make PowerPC LMB code generic so sparc64 can use it too.David S. Miller2008-02-131-1/+1
| | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | arch: Remove unnecessary inclusions of asm/semaphore.hMatthew Wilcox2008-04-181-1/+0
|/ | | | | | | | | None of these files use any of the functionality promised by asm/semaphore.h. It's possible that they rely on it dragging in some unrelated header file, but I can't build all these files, so we'll have fix any build failures as they come up. Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
* Revert "[POWERPC] Fix RTAS os-term usage on kernel panic"Paul Mackerras2007-12-031-6/+6
| | | | | | | | | | | | This reverts commit a2b51812a4dc5db09ab4d4638d4d8ed456e2457e. It turns out that this change caused some machines to fail to come back up when being rebooted, and generated an error in the hypervisor error log on some machines. The platform architecture (PAPR) is a little unclear on exactly when the RTAS ibm,os-term function should be called. Until that is clarified I'm reverting this commit. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix RTAS os-term usage on kernel panicLinas Vepstas2007-11-201-6/+6
| | | | | | | | | | | | | | | | | | | The rtas_os_term() routine was being called at the wrong time. The actual rtas call "os-term" will not ever return, and so calling it from the panic notifier is too early. Instead, call it from the machine_reset() call. This splits the rtas_os_term() routine into two: one part to capture the kernel panic message, invoked during the panic notifier, and another part that is invoked during machine_reset(). Prior to this patch, the os-term call was never being made, because panic_timeout was always non-zero. Calling os-term helps keep the hypervisor happy! We have to keep the hypervisor happy to avoid service, dump and error reporting problems. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix multiple bugs in rtas_ibm_suspend_me codeNathan Lynch2007-11-191-41/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are several issues with the rtas_ibm_suspend_me code, which enables platform-assisted suspension of an LPAR as covered in PAPR 2.2. 1.) rtas_ibm_suspend_me uses on_each_cpu() to invoke rtas_percpu_suspend_me on all cpus via IPI: if (on_each_cpu(rtas_percpu_suspend_me, &data, 1, 0)) ... 'data' is on the calling task's stack, but rtas_ibm_suspend_me takes no measures to ensure that all instances of rtas_percpu_suspend_me are finished accessing 'data' before returning. This can result in the IPI'd cpus accessing random stack data and getting stuck in H_JOIN. This is addressed by using an atomic count of workers and a completion on the stack. 2.) rtas_percpu_suspend_me is needlessly calling H_JOIN in a loop. The only event that can cause a cpu to return from H_JOIN is an H_PROD from another cpu or a NMI/system reset. Each cpu need call H_JOIN only once per suspend operation. Remove the loop and the now unnecessary 'waiting' state variable. 3.) H_JOIN must be called with MSR[EE] off, but lazy interrupt disabling may cause the caller of rtas_ibm_suspend_me to call H_JOIN with it on; the local_irq_disable() in on_each_cpu() is not sufficient. Fix this by explicitly saving the MSR and clearing the EE bit before calling H_JOIN. 4.) H_PROD is being called with the Linux logical cpu number as the parameter, not the platform interrupt server value. (It's also being called for all possible cpus, which is harmless, but unnecessary.) This is fixed by calling H_PROD for each online cpu using get_hard_smp_processor_id(cpu) for the argument. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove old interface find_path_deviceStephen Rothwell2007-04-241-1/+2
| | | | | | | Replaced by of_find_node_by_path. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Rename get_property to of_get_property: arch/powerpcStephen Rothwell2007-04-131-8/+8
| | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Storage class should be before const qualifierTobias Klauser2007-02-171-1/+1
| | | | | | | | | | | The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [POWERPC] Add rtas_service_present() helperNathan Lynch2006-12-081-0/+6
| | | | | | | | | | | | | | To test for the existence of an RTAS function, we typically do: foo_token = rtas_token("foo"); if (foo_token == RTAS_UNKNOWN_SERVICE) return; Add a rtas_service_present method, which provides a more conventional boolean interface for testing the existence of an RTAS method. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Move rtas_stop_self() into platforms/pseries/hotplug-cpu.cMichael Ellerman2006-12-081-29/+0
| | | | | | | | | | | As the first step in consolidating the pseries hotplug cpu code, create platforms/pseries/hotplug-cpu.c and move rtas_stop_self() into it. Do the rtas token initialisation in a new initcall, rather than rtas_initialize(). Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Wrap cpu_die() with CONFIG_HOTPLUG_CPULinas Vepstas2006-12-041-2/+3
| | | | | | | | | | Per email discussion, it appears that rtas_stop_self() and pSeries_mach_cpu_die() should not be compiled if CONFIG_HOTPLUG_CPU is not defined. This patch adds #ifdefs around these bits of code. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] reboot when panic_timout is setOlaf Hering2006-08-251-0/+3
| | | | | | | | | | Only call into RTAS when booted with panic=0 because the RTAS call does not return. The system has to be rebooted via the HMC or via the management console right now. This is cumbersome and not what the default panic=180 is supposed to do. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] powerpc: Make RTAS console init genericMichael Neuling2006-08-251-0/+5
| | | | | | | | The rtas console doesn't have to be Cell specific. If we get both RTAS tokens, we should just enabled the console then and there. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge branch 'merge'Paul Mackerras2006-08-081-0/+21
|\
| * [POWERPC] Fix might-sleep warning on removing cpusHaren Myneni2006-08-081-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Noticing the following might_sleep warning (dump_stack()) during kdump testing when CONFIG_DEBUG_SPINLOCK_SLEEP is enabled. All secondary CPUs will be calling rtas_set_indicator with interrupts disabled to remove them from global interrupt queue. BUG: sleeping function called from invalid context at arch/powerpc/kernel/rtas.c:463 in_atomic():1, irqs_disabled():1 Call Trace: [C00000000FFFB970] [C000000000010234] .show_stack+0x68/0x1b0 (unreliable) [C00000000FFFBA10] [C000000000059354] .__might_sleep+0xd8/0xf4 [C00000000FFFBA90] [C00000000001D1BC] .rtas_busy_delay+0x20/0x5c [C00000000FFFBB20] [C00000000001D8A8] .rtas_set_indicator+0x6c/0xcc [C00000000FFFBBC0] [C000000000048BF4] .xics_teardown_cpu+0x118/0x134 [C00000000FFFBC40] [C00000000004539C] .pseries_kexec_cpu_down_xics+0x74/0x8c [C00000000FFFBCC0] [C00000000002DF08] .crash_ipi_callback+0x15c/0x188 [C00000000FFFBD50] [C0000000000296EC] .smp_message_recv+0x84/0xdc [C00000000FFFBDC0] [C000000000048E08] .xics_ipi_dispatch+0xf0/0x130 [C00000000FFFBE50] [C00000000009EF10] .handle_IRQ_event+0x7c/0xf8 [C00000000FFFBF00] [C0000000000A0A14] .handle_percpu_irq+0x90/0x10c [C00000000FFFBF90] [C00000000002659C] .call_handle_irq+0x1c/0x2c [C00000000058B9C0] [C00000000000CA10] .do_IRQ+0xf4/0x1a4 [C00000000058BA50] [C0000000000044EC] hardware_interrupt_entry+0xc/0x10 --- Exception: 501 at .plpar_hcall_norets+0x14/0x1c LR = .pseries_dedicated_idle_sleep+0x190/0x1d4 [C00000000058BD40] [C00000000058BDE0] 0xc00000000058bde0 (unreliable) [C00000000058BDF0] [C00000000001270C] .cpu_idle+0x10c/0x1e0 [C00000000058BE70] [C000000000009274] .rest_init+0x44/0x5c To fix this issue, rtas_set_indicator_fast() is added so that will not wait for RTAS 'busy' delay and this new function is used for kdump (in xics_teardown_cpu()) and for CPU hotplug ( xics_migrate_irqs_away() and xics_setup_cpu()). Note that the platform architecture spec says that set-indicator on the indicator we're using here is not permitted to return the busy or extended busy status codes. Signed-off-by: Haren Myneni <haren@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] clean up pseries hcall interfacesAnton Blanchard2006-08-011-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Our pseries hcall interfaces are out of control: plpar_hcall_norets plpar_hcall plpar_hcall_8arg_2ret plpar_hcall_4out plpar_hcall_7arg_7ret plpar_hcall_9arg_9ret Create 3 interfaces to cover all cases: plpar_hcall_norets: 7 arguments no returns plpar_hcall: 6 arguments 4 returns plpar_hcall9: 9 arguments 9 returns There are only 2 cases in the kernel that need plpar_hcall9, hopefully we can keep it that way. Pass in a buffer to stash return parameters so we avoid the &dummy1, &dummy2 madness. Signed-off-by: Anton Blanchard <anton@samba.org> -- Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Constify & voidify get_property()Jeremy Kerr2006-07-311-13/+15
|/ | | | | | | | | | | Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. powerpc core changes. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add udbg support for RTAS consoleMichael Ellerman2006-06-281-1/+71
| | | | | | | | | Add udbg hooks for the RTAS console, based on the RTAS put-term-char and get-term-char calls. Along with my previous patches, this should enable debugging as soon as early_init_dt_scan_rtas() is called. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Setup RTAS values earlier, to enable rtas_call() earlierMichael Ellerman2006-06-281-0/+22
| | | | | | | | | | | | | | Althought RTAS is instantiated when we enter the kernel, we can't actually call into it until we know its entry point address. Currently we grab that in rtas_initialize(), however that's quite late in the boot sequence. To enable rtas_call() earlier, we can grab the RTAS entry etc. values while we're scanning the flattened device tree. There's existing code to retrieve the values from /chosen, however we don't store them there anymore, so remove that code. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Move RTAS exports next to their declarationsMichael Ellerman2006-06-281-14/+13
| | | | | | | Move RTAS exports next to their declarations. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Make rtas_call() safe if RTAS hasn't been initialisedMichael Ellerman2006-06-281-1/+1
| | | | | | | | | | | | | Currently it's unsafe to call rtas_call() prior to rtas_initialize(). This is because the rtas.entry value hasn't been setup and so we don't know where to enter, but we just try anyway. We can't do anything intelligent without rtas.entry, so if it's not set, just return. Code that calls rtas_call() early needs to be aware that the call might fail. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] RTAS delay, fix module build breaksJohn Rose2006-06-211-0/+1
| | | | | | | | Export both news RTAS delay functions, and change the scanlog module to use the new delay functions. Signed-off-by: John Rose <johnrose@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] check firmware state before suspendingDave C Boutcher2006-06-151-0/+22
| | | | | | | | | | Currently the kernel blindly halts all the processors and calls the ibm,suspend-me rtas call. If the firmware is not in the correct state, we then re-start all the processors and return. It is much smarter to first check the firmware state, and only if it is waiting, call the ibm,suspend-me call. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: reorg RTAS delay codeJohn Rose2006-06-091-50/+35
| | | | | | | | | | | | | This patch attempts to handle RTAS "busy" return codes in a more simple and consistent manner. Typical callers of RTAS shouldn't have to manage wait times and delay calls. This patch also changes the kernel to use msleep() rather than udelay() when a runtime delay is necessary. This will avoid CPU soft lockups for extended delay conditions. Signed-off-by: John Rose <johnrose@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc/pseries: Change H_StudlyCaps to H_SHOUTING_CAPSSegher Boessenkool2006-04-011-6/+6
| | | | | | | Also cleans up some nearby whitespace problems. Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] for_each_possible_cpu: powerpcKAMEZAWA Hiroyuki2006-03-291-2/+2
| | | | | | | | | | | | | | | | for_each_cpu() actually iterates across all possible CPUs. We've had mistakes in the past where people were using for_each_cpu() where they should have been iterating across only online or present CPUs. This is inefficient and possibly buggy. We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the future. This patch replaces for_each_cpu with for_each_possible_cpu. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Kill _machine and hard-coded platform numbersBenjamin Herrenschmidt2006-03-281-1/+2
| | | | | | | | | | | | | | | | This removes statically assigned platform numbers and reworks the powerpc platform probe code to use a better mechanism. With this, board support files can simply declare a new machine type with a macro, and implement a probe() function that uses the flattened device-tree to detect if they apply for a given machine. We now have a machine_is() macro that replaces the comparisons of _machine with the various PLATFORM_* constants. This commit also changes various drivers to use the new macro instead of looking at _machine. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: declare arch syscalls in <asm/syscalls.h>Arnd Bergmann2006-03-271-0/+1
| | | | | | | | | | | | | | | | | | | powerpc currently declares some of its own system calls in <asm/unistd.h>, but not all of them. That place also contains remainders of the now almost unused kernel syscall hack. - Add a new <asm/syscalls.h> with clean declarations - Include that file from every source that implements one of these - Get rid of old declarations in <asm/unistd.h> This patch is required as a base for implementing system calls from an SPU, but also makes sense as a general cleanup. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: remove useless call to touch_softlockup_watchdogDave C Boutcher2006-02-071-4/+0
| | | | | | | | | | | | | It turns out that we can't stop the watchdog from triggering here. If we touch the timer (which just uses the current jiffie value) before we enable interrupts, it does nothing because jiffies are not mass-updated until after we enable interrupts. If we touch the timer after we enable interrupts, its too late because the softlockup watchdog will already have triggered. The touch_softlockup_watchdog call removed below does nothing. Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: prod all processors after ibm,suspend-meDave C Boutcher2006-02-071-0/+3
| | | | | | | | We need to prod everyone here since this is the only CPU that is guaranteed to be running after the ibm,suspend-me RTAS call returns. Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: return correct rtas status from ibm,suspend-meDave C Boutcher2006-02-071-2/+2
| | | | | | | | Correctly return the status from the RTAS call. rtas_call expects to return the status as a return value. Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Fix !SMP build of rtas.cMichael Ellerman2006-02-071-0/+1
| | | | | | | | arch/powerpc/kernel/rtas.c is getting hvcall.h via spinlock.h, but when we're building for UP we don't include spinlock.h. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: special-case ibm,suspend-me RTAS callDave C Boutcher2006-01-141-1/+95
| | | | | | | | | | | | | | Handle the ibm,suspend-me RTAS call specially. It needs to be wrapped in a set of synchronization hypervisor calls (H_Join). When the H_Join calls are made on all CPUs, the intent is that only one will return with H_Continue, meaning that he is the "last man standing". That CPU then issues the ibm,suspend-me call. What is interesting, of course, is that the CPU running when the rtas syscall is made, may NOT be the CPU that ultimately executes the ibm,suspend-me rtas call. Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] capable/capability.h (arch/)Randy Dunlap2006-01-111-0/+1
| | | | | | | | arch: Use <linux/capability.h> where capable() is used. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] powerpc: Make early debugging configurable via KconfigMichael Ellerman2006-01-111-3/+9
| | | | | | | | | | | | | | | | | This patch adds Kconfig entries to control the early debugging options, currently in setup_64.c. Doing this via Kconfig rather than #defines means you can have one source tree, which is buildable for multiple platforms - and you can enable the correct early debug option for each platform via .config. I made udbg_early_init() a static inline because otherwise GCC is to daft to optimise it away when debugging is off. Now that we have udbg_init_rtas() we can make call_rtas_display_status* static. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* spelling: s/retreive/retrieve/Adrian Bunk2006-01-101-1/+1
| | | | Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] powerpc: merge code values for identifying platformsPaul Mackerras2005-11-101-4/+1
| | | | | | | | | | | | This patch merges platform codes. systemcfg->platform is no longer used, systemcfg use in general is deprecated as much as possible (and renamed _systemcfg before it gets completely moved elsewhere in a future patch), _machine is now used on ppc64 along as ppc32. Platform codes aren't gone yet but we are getting a step closer. A bunch of asm code in head[_64].S is also turned into C code. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] ppc: fix a bunch of warningsBenjamin Herrenschmidt2005-11-081-1/+2
| | | | | | | | Building a PowerMac kernel with ARCH=powerpc causes a bunch of warnings, this fixes some of them Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Various UP build fixesPaul Mackerras2005-11-071-2/+0
| | | | | | | | | Mostly this involves adding #include <asm/smp.h>, since that defines things like boot_cpuid[_phys] and [gs]et_hard_smp_processor_id, which are SMP-related but still needed on UP. This incorporates fixes posted by Olof Johansson and Heikki Lindholm. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Merge remaining RTAS codePaul Mackerras2005-11-031-1/+18
| | | | | | | | | This moves rtas-proc.c and rtas_flash.c into arch/powerpc/kernel, since cell wants them as well as pseries (and chrp can use rtas-proc.c too, at least in principle). rtas_fw.c is gone, with its bits moved into rtas_flash.c and rtas.c. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Merge rtas.c into arch/powerpc/kernelPaul Mackerras2005-10-261-0/+680
This splits arch/ppc64/kernel/rtas.c into arch/powerpc/kernel/rtas.c, which contains generic RTAS functions useful on any CHRP platform, and arch/powerpc/platforms/pseries/rtas-fw.[ch], which contain some pSeries-specific firmware flashing bits. The parts of rtas.c that are to do with pSeries-specific error logging are protected by a new CONFIG_RTAS_ERROR_LOGGING symbol. The inclusion of rtas.o is controlled by the CONFIG_PPC_RTAS symbol, and the relevant platforms select that. Signed-off-by: Paul Mackerras <paulus@samba.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-11 08:42:23 +0000