- 31 8月, 2005 2 次提交
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由 Peter Chubb 提交于
Not all of the PAL VM calls are implemented for the SKI simulator. Don't just give up if one fails, print information from the calls that succeed. Signed-off-by: NPeter Chubb <peterc@gelato.unsw.edu.au> Signed-off-by: NTony Luck <tony.luck@intel.com>
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由 Peter Chubb 提交于
This patch implements PAL_VM_SUMMARY (and PAL_MEM_ATTRIB for good measure) and pretends that the simulated machine is a McKinley. Some extra comments and clean-up by Tony Luck. Signed-off-by: NPeter Chubb <peterc@gelato.unsw.edu.au> Signed-off-by: NTony Luck <tony.luck@intel.com>
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- 30 8月, 2005 21 次提交
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由 David Gibson 提交于
The {BEGIN,END}_FTR_SECTION asm macros used in ppc64 to nop out sections of code at runtime cannot be nested. However, we do nest them in hash_low.S. We get away with it there, because there is nothing between the BEGIN markers for each section. However, that's confusing to someone reading the code. This patch removes the nested ifset and ifclr feature sections, replacing them with a single feature section in the full mask/value form. Signed-off-by: NDavid Gibson <dwg@au1.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Joel Schopp 提交于
This patch fixes a rare memory leak found by Coverity. Signed-off-by: NJoel Schopp <jschopp@austin.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Joel Schopp 提交于
Coverity found more unused code. Signed-off-by: NJoel Schopp <jschopp@austin.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Anton Blanchard 提交于
While ppc64 has the CONFIG_HZ Kconfig option, it wasnt actually being used. Connect it up and set all platforms to 250Hz. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Jake Moilanen 提交于
Here's the 970MP's PVR (processor version register) entry for oprofile. Signed-off-by: NJake Moilanen <moilanen@austin.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Olof Johansson 提交于
Some RS64-based machines (p620, F80, others) have problems with firmware returning 0xdeadbeef instead of failure to allocations that end at the 1GB mark. We have two options: 1. Detect the undocumented 0xdeadbeef return value and interpret it as a failure. 2. Avoid allocating that high. (2) is really the cleaner solution here. 768MB is plenty of room so use that as the max alloc_top instead of 1GB. Signed-off-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Stephen Rothwell 提交于
The ppc and ppc64 trees are hopefully going to merge over time, so this patch begins the process by creating a place for the merging of the header files. Create include/asm-powerpc (and move linkage.h into it from asm-{ppc,ppc64} since we don't like empty directories). Modify the ppc and ppc64 Makefiles to cope. 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
Make MODULE_DEVICE_TABLE work for vio devices. 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 vio_bus_ops so that we just pass a structure to vio_bus_init instead of three separate function pointers. Rearrange vio.h to avoid forward references. vio.h only needs struct device_node from prom.h so remove the include and just declare it. 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
Take some assignments out of vio_register_device_common and rename it to vio_register_device. 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
Formatting changes to vio.c to bring it closer to the kernel coding standard. 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
gcc 3.4 (at least the build we are using) puts the gcc generated .ident string into a .note section at the end of the files it compiles (gcc 3.3.3-hammer and gcc 4.0.2 Debian puts it in the .text section). This means that the lparmap.s file we produce in the iSeries build may end with a .note section. When we include it into head.S, the assembler can no longer resolve some of the conditional branches since the target label ends up too far away. This patch just forces us back to the .text section after including lparmap.s. The breakage was caused by my patch "iSeries build with newer assemblers and compilers" (sha1-id: 2ad56496). Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 David Gibson 提交于
A mistake rebasing the series of ppc64 head.S cleanup patches meant the #include of lparmap.s, needed for iSeries was lost. This patch puts it back again. Signed-off-by: NDavid Gibson <dwg@au1.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 David S. Miller 提交于
It appears that a memory barrier soon after a mispredicted branch, not just in the delay slot, can cause the hang condition of this cpu errata. So move them out-of-line, and explicitly put them into a "branch always, predict taken" delay slot which should fully kill this problem. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
When the spinlock routines were moved out of line into kernel/spinlock.c this made it so that the debugging spinlocks record lock acquisition program counts in the kernel/spinlock.c functions not in their callers. This makes the debugging info kind of useless. So record the correct caller's program counter and now this feature is useful once more. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Kumar Gala 提交于
Removed sparc architecture specific users of asm/segment.h and asm-sparc/segment.h itself Signed-off-by: NKumar Gala <kumar.gala@freescale.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Kumar Gala 提交于
Removed sparc64 architecture specific users of asm/segment.h and asm-sparc64/segment.h itself Signed-off-by: NKumar Gala <kumar.gala@freescale.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Current uncorrectable error handling was poor enough that the processor could just loop taking the same trap over and over again. Fix things up so that we at least get a log message and perhaps even some register state. In the process, much consolidation became possible, particularly with the correctable error handler. Prefix assembler and C function names with "spitfire" to indicate that these are for Ultra-I/II/IIi/IIe only. More work is needed to make these routines robust and featureful to the level of the Ultra-III error handlers. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Verify we really are taking a data access exception trap, at TL1, from one of the window spill/fill handlers. Else call a new function, data_access_exception_tl1, to log the error. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
1) Read ASI_IMMU SFSR not ASI_DMMU. 2) IMMU has no SFAR, read TPC instead 3) Delete old and incorrect comment about the DTLB protection trap having a dependency on the SFSR contents in order to function correctly Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Steven Rostedt 提交于
It has been reported that the way Linux handles NODEFER for signals is not consistent with the way other Unix boxes handle it. I've written a program to test the behavior of how this flag affects signals and had several reports from people who ran this on various Unix boxes, confirming that Linux seems to be unique on the way this is handled. The way NODEFER affects signals on other Unix boxes is as follows: 1) If NODEFER is set, other signals in sa_mask are still blocked. 2) If NODEFER is set and the signal is in sa_mask, then the signal is still blocked. (Note: this is the behavior of all tested but Linux _and_ NetBSD 2.0 *). The way NODEFER affects signals on Linux: 1) If NODEFER is set, other signals are _not_ blocked regardless of sa_mask (Even NetBSD doesn't do this). 2) If NODEFER is set and the signal is in sa_mask, then the signal being handled is not blocked. The patch converts signal handling in all current Linux architectures to the way most Unix boxes work. Unix boxes that were tested: DU4, AIX 5.2, Irix 6.5, NetBSD 2.0, SFU 3.5 on WinXP, AIX 5.3, Mac OSX, and of course Linux 2.6.13-rcX. * NetBSD was the only other Unix to behave like Linux on point #2. The main concern was brought up by point #1 which even NetBSD isn't like Linux. So with this patch, we leave NetBSD as the lonely one that behaves differently here with #2. Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 29 8月, 2005 17 次提交
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由 David Gibson 提交于
Paulus, I think this is now a reasonable candidate for the post-2.6.13 queue. Relax address restrictions for hugepages on ppc64 Presently, 64-bit applications on ppc64 may only use hugepages in the address region from 1-1.5T. Furthermore, if hugepages are enabled in the kernel config, they may only use hugepages and never normal pages in this area. This patch relaxes this restriction, allowing any address to be used with hugepages, but with a 1TB granularity. That is if you map a hugepage anywhere in the region 1TB-2TB, that entire area will be reserved exclusively for hugepages for the remainder of the process's lifetime. This works analagously to hugepages in 32-bit applications, where hugepages can be mapped anywhere, but with 256MB (mmu segment) granularity. This patch applies on top of the four level pagetable patch (http://patchwork.ozlabs.org/linuxppc64/patch?id=1936). Signed-off-by: NDavid Gibson <dwg@au1.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
You can't call get_property() on a NULL node, so check if of_chosen is set in check_for_initrd(). Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> arch/ppc64/kernel/setup.c | 20 ++++++++++++-------- 1 files changed, 12 insertions(+), 8 deletions(-) Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
unflatten_device_tree() doesn't check if lmb_alloc() succeeds or not, it should. All it can do is panic, but at least there's an error message (assuming you have some sort of console at that point). Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> arch/ppc64/kernel/prom.c | 9 +++++++-- 1 files changed, 7 insertions(+), 2 deletions(-) Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
When unflatten_dt_node() fails to find an OF_DT_END_NODE tag it prints "Weird tag at start of node", this should be "Weird tag at end of node". Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> arch/ppc64/kernel/prom.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
This patch moves power4_enable_pmcs() to arch/ppc64/kernel/pmc.c. I've tested it on P5 LPAR and P4. It does what it used to. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Olaf Hering 提交于
If both CONFIG_XMON and CONFIG_XMON_DEFAULT is enabled in the .config, there is no way to disable xmon again. setup_system calls first xmon_init, later parse_early_param. So a new 'xmon=off' cmdline option will do the right thing. Signed-off-by: NOlaf Hering <olh@suse.de> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
We can now remove CONFIG_MSCHUNKS as it doesn't do anything interesting anymore. The only macro in abs_addr.h which is called by non-iSeries code is phys_to_abs(), so remove the other dummy implementations, and we add a firmware feature check to phys_to_abs(). Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
lmb_phys_mem_size() can always return lmb.memory.size, as long as it's called after lmb_analyze(), which it is. There's no need to recalculate the size on every call. lmb_analyze() was calculating a few things we then threw away, so just don't calculate them to start with. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
We no longer need the lmb code to know about abs and phys addresses, so remove the physbase variable from the lmb_property struct. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
abs_to_phys() is a macro that turns out to do nothing, and also has the unfortunate property that it's not the inverse of phys_to_abs() on iSeries. The following is for my benefit as much as everyone else. With CONFIG_MSCHUNKS enabled, the lmb code is changed such that it keeps a physbase variable for each lmb region. This is used to take the possibly discontiguous lmb regions and present them as a contiguous address space beginning from zero. In this context each lmb region's base address is its "absolute" base address, and its physbase is it's "physical" address (from Linux's point of view). The abs_to_phys() macro does the mapping from "absolute" to "physical". Note: This is not related to the iSeries mapping of physical to absolute (ie. Hypervisor) addresses which is maintained with the msChunks structure. And the msChunks structure is not controlled via CONFIG_MSCHUNKS. Once upon a time you could compile for non-iSeries with CONFIG_MSCHUNKS enabled. But these days CONFIG_MSCHUNKS depends on CONFIG_PPC_ISERIES, so for non-iSeries code abs_to_phys() is a no-op. On iSeries we always have one lmb region which spans from 0 to systemcfg->physicalMemorySize (arch/ppc64/kernel/iSeries_setup.c line 383). This region has a base (ie. absolute) address of 0, and a physbase address of 0 (as calculated in lmb_analyze() (arch/ppc64/kernel/lmb.c line 144)). On iSeries, abs_to_phys(aa) is defined as lmb_abs_to_phys(aa), which finds the lmb region containing aa (and there's only one, ie. 0), and then does: return lmb.memory.region[0].physbase + (aa - lmb.memory.region[0].base) physbase == base == 0, so you're left with "return aa". So remove abs_to_phys(), and lmb_abs_to_phys() which is the implementation of abs_to_phys() for iSeries. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
The lmb code is all written to use a pointer to an lmb struct. But it's always the same lmb struct, called "lmb". So we take the address of lmb, call it _lmb and then start using _lmb->foo everywhere, which is silly. This patch removes the _lmb pointers and replaces them with direct references to the one "lmb" struct. We do the same for some _mem and _rsv pointers which point to lmb.memory and lmb.reserved respectively. This patch looks quite busy, but it's basically just: s/_lmb->/lmb./g s/_mem->/lmb.memory./g s/_rsv->/lmb.reserved./g s/_rsv/&lmb.reserved/g s/mem->/lmb.memory./g Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
physRpn_to_absRpn is a no-op on non-iSeries platforms, remove the two redundant calls. There's only one caller on iSeries so fold the logic in there so we can get rid of it completely. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
Rename the msChunks struct to get rid of the StUdlY caps and make it a bit clearer what it's for. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
Chunks are 256KB, so use constants for the size/shift/mask, rather than getting them from the msChunks struct. The iSeries debugger (??) might still need access to the values in the msChunks struct, so we keep them around for now, but set them from the constant values. Replace msChunks_entry typedef with regular u32. Simplify msChunks_alloc() to manipulate klimit directly, rather than via a parameter. Move msChunks_alloc() and msChunks into iSeries_setup.c, as that's where they're used. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
The msChunks code was written to work on pSeries, but now it's only used on iSeries. This means there's no need to do PTRRELOC anymore, so remove it all. A few places were getting "extern reloc_offset()" from abs_addr.h, move it into system.h instead. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Stephen Rothwell 提交于
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
Make firmware_has_feature() evaluate at compile time for the non pSeries case and tidy up code where possible. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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