aboutsummaryrefslogtreecommitdiffstats
path: root/arch/powerpc
Commit message (Collapse)AuthorAge
* powerpc/mm: Fix _PAGE_COHERENT support on classic ppc32 HWKumar Gala2009-02-11
| | | | | | | | | | | | | | | | | | The following commit: commit 64b3d0e8122b422e879b23d42f9e0e8efbbf9744 Author: Benjamin Herrenschmidt <benh@kernel.crashing.org> Date: Thu Dec 18 19:13:51 2008 +0000 powerpc/mm: Rework usage of _PAGE_COHERENT/NO_CACHE/GUARDED broke setting of the _PAGE_COHERENT bit in the PPC HW PTE. Since we now actually set _PAGE_COHERENT in the Linux PTE we shouldn't be clearing it out before we propogate it to the PPC HW PTE. Reported-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Add missing sparsemem.h includeMichael Neuling2009-02-09
| | | | | | | | | arch/powerpc/platforms/pseries/hotplug-memory.c uses remove_section_mapping() but doesn't include sparsemem.h which defines it. This can cause compilation fails for some configs. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: mmap anonymous memory when legacy_mem doesn't existBenjamin Herrenschmidt2009-02-09
| | | | | | | | | | | | | | | The new legacy_mem file in sysfs is causing problems with X on machines that don't support legacy memory access. The way I initially implemented it, we would fail with -ENXIO when trying to mmap it, thus exposing to X that we do support the API but there is no legacy memory. Unfortunately, X poor error handling is causing it to fail to start when it gets this error. This implements a workaround hack that instead maps anonymous memory instead (using shmem if VM_SHARED is set, just like /dev/zero does). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/cell: Add missing #include for oprofileMichael Neuling2009-02-09
| | | | | | | | | | arch/powerpc/oprofile/cell/spu_profiler.c is missing a asm/time.h include which is required for ppc_proc_freq. This can cause compile failures for some config combinations. Signed-off-by: Michael Neuling <mikey@neuling.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/ftrace: Fix math to calculate offset in TOCSteven Rostedt2009-02-09
| | | | | | | | | | | | | Impact: fix dynamic ftrace with large modules in PPC64 The math to calculate the offset into the TOC that is taken from reading the trampoline is incorrect. The bottom half of the offset is a signed extended short. The current code was using an OR to create the offset when it should have been using an addition. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Don't emulate mr. instructionsAnanth N Mavinakayanahalli2009-02-09
| | | | | | | | | | | Currently emulate_step() emulates mr. instructions without updating cr0 and this can be disastrous. Don't emulate mr. This bug has been around for a while, but I am not sure if its a worthy -stable candidate. I'll leave it to Ben do decide. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/fsl-booke: Fix mapping functions to use phys_addr_tKumar Gala2009-02-09
| | | | | | | | | Fixed v_mapped_by_tlbcam() and p_mapped_by_tlbcam() to use phys_addr_t instead of unsigned long. In 36-bit physical mode we really need these functions to deal with phys_addr_t when trying to match a physical address or when returning one. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* arch/powerpc: Eliminate double sizeofJulia Lawall2009-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Taking sizeof the result of sizeof is quite strange and does not seem to be what is wanted here. This was fixed using the following semantic patch. (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ expression E; @@ - sizeof ( sizeof (E) - ) @@ type T; @@ - sizeof ( sizeof (T) - ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/cpm2: Fix set interrupt typepaulfax2009-02-06
| | | | | | | | | | | | | This is a simple change to correct problems when using set_irq_type on platforms using CPM2. This code corrects the problem on most platform but may have issues on 8272 derived platforms for some interrupts. On 8272 PC2 & 3 are missing and PC 23 & 29 are added, which this patch does not address. Signed-off-by: Paul Bilke <paul@conspiracy.net> Reviewed-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/83xx: Fix TSEC0 workability on MPC8313E-RDB boardsAnton Vorontsov2009-02-06
| | | | | | | | | | | | | | | TSEC0 is connected to Vitesse 7385 5-port switch. The switch isn't connected to any mdio bus, the link to the switch is fixed to Full-duplex 1000 Mb/s (no pause). This patch fixes following failure during bootup: mdio@24520:01 not found eth0: Could not attach to PHY IP-Config: Failed to open eth0 Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/83xx: Fix missing #{address,size}-cells in mpc8313erdb.dtsAnton Vorontsov2009-02-06
| | | | | | | | | | | | | | | commit b31a1d8b41513b96e9c7ec2f68c5734cef0b26a4 ("gianfar: Convert gianfar to an of_platform_driver") introduced a child node for the ethernet@25000 controller, but no address and size cells specifiers were added, and that makes dtc unhappy: DTC: dts->dtb on file "arch/powerpc/boot/dts/mpc8313erdb.dts" Warning (reg_format): "reg" property in /soc8313@e0000000/ethernet@25000/mdio@25520 has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1) Warning (avoid_default_addr_size): Relying on default #address-cells value for /soc8313@e0000000/ethernet@25000/mdio@25520 Warning (avoid_default_addr_size): Relying on default #size-cells value for /soc8313@e0000000/ethernet@25000/mdio@25520 Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/83xx: Build breakage for CONFIG_PM but no CONFIG_SUSPENDMichael Neuling2009-02-06
| | | | | | | | | | | | | | | | | | | | I noticed this doing some randconfig testing (.config below). I have CONFIG_PM but no CONFIG_SUSPEND. Bug is against mainline. arch/powerpc/sysdev/built-in.o: In function `ipic_suspend': ipic.c:(.text+0x6b34): undefined reference to `fsl_deep_sleep' make[1]: *** [.tmp_vmlinux1] Error 1 make: *** [sub-make] Error 2 Looks like #ifdef CONFIG_PM in arch/powerpc/sysdev/ipic.c should be CONFIG_SUSPEND. d49747bdfb2ddebea24d1580da55b79d093d48a9 introduced this. Fix build when we have CONFIG_PM but no CONFIG_SUSPEND. Signed-off-by: Michael Neuling <mikey@neuling.org> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc: Fix oops on some machines due to incorrect pr_debug()Benjamin Herrenschmidt2009-02-02
| | | | | | | | | | | Recently, a patch left DEBUG enabled in the powerpc common PCI code, resulting in an old bug in a pr_debug() statement to show up and cause a NULL dereference on some machines. This fixes the pr_debug() statement and reverts to DEBUG not being force-enabled in that file. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/5200: Bugfix for PCI mapping of memory and IMMRGrant Likely2009-01-29
| | | | | | | | | | | | | | | | | | This patch ensures that memory gets properly mapped into the PCI address space. Without this patch, the memory window BAR is left at whatever value happened to be loaded into the BAR when Linux was booted. Without this patch, memory could end up getting mapped at any of the 1G address boundaries instead of at '0' where Linux expects it. Similarly, this patch also ensures that the internally memory mapped registers (IMMR) are mapped to the correct PCI address range. Without this patch, PCI appears to work correctly until a PCI device is inserted which DMAs into memory. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Tested-by: Wolfram Sang <w.sang@pengutronix.de>
* powerpc/5200: update defconfigsGrant Likely2009-01-29
| | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* powerpc/mm: Fix handling of _PAGE_COHERENT in BAT setup codeGerhard Pircher2009-01-28
| | | | | | | | | | | | _PAGE_COHERENT is now always set in _PAGE_RAM resp. PAGE_KERNEL. Thus it has to be masked out, if the BAT mapping should be non cacheable or CPU_FTR_NEED_COHERENT is not set. This will work on normal SMP setups because we force-set CPU_FTR_NEED_COHERENT as part of CPU_FTR_COMMON on SMP. Signed-off-by: Gerhard Pircher <gerhard_pircher@gmx.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries: Correct VIO bus accounting problem in CMO env.Robert Jennings2009-01-28
| | | | | | | | | | | | | | | | | In the VIO bus code the wrappers for dma alloc_coherent and free_coherent calls are rounding to IOMMU_PAGE_SIZE. Taking a look at the underlying calls, the actual mapping is promoted to PAGE_SIZE. Changing the rounding in these two functions fixes under-reporting the entitlement used by the system. Without this change, the system could run out of entitlement before it believes it has and incur mapping failures at the firmware level. Also in the VIO bus code, the wrapper for dma map_sg is not exiting in an error path where it should. Rather than fall through to code for the success case, this patch adds the return that is needed in the error path. Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Remove arch/ppc cruft from KconfigJosh Boyer2009-01-28
| | | | | | | | Remove some leftover cruft from the arch/ppc days Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Printing fix for l64 to ll64 conversion: phyp_dump.cStephen Rothwell2009-01-28
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge commit 'jwb/jwb-merge' into mergeBenjamin Herrenschmidt2009-01-28
|\ | | | | | | | | Manual merge of: arch/powerpc/configs/44x/warp_defconfig
| * powerpc/4xx: Update multi-board PowerPC 4xx defconfigsJosh Boyer2009-01-23
| | | | | | | | | | | | Update the multi-board configs for 2.6.29-rc2 Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
| * powerpc/44x: Update PowerPC 44x defconfigsJosh Boyer2009-01-23
| | | | | | | | | | | | Update the 44x defconfigs for 2.6.29-rc2 Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
| * powerpc/40x: Update PowerPC 40x defconfigsJosh Boyer2009-01-20
| | | | | | | | | | | | Update the 40x defconfigs for 2.6.29-rc2 Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
| * powerpc/44x: Warp patches for the new NDFC driverSean MacLennan2009-01-20
| | | | | | | | | | | | | | | | | | | | | | Convert the Warp platform to use the newly merged NDFC driver - warp.dts changed to work with ndfc - warp-nand.c no longer needed - removed obsolete rev A support from cuboot-warp.c Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
| * powerpc/4xx: DTS: Add Add'l SDRAM0 Compatible and Interrupt InfoGrant Erickson2009-01-20
| | | | | | | | | | | | | | | | | | | | | | Added additional information for type and compatibility strings and interrupt information to the SDRAM0 memory-controller device tree nodes for AMCC PowerPC 405EX[r]-based boards to facilitate binding with the new "ibm,sdram-4xx-ddr2" EDAC memory controller adapter driver. Signed-off-by: Grant Erickson <gerickson@nuovations.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | Merge commit 'kumar/kumar-merge' into mergeBenjamin Herrenschmidt2009-01-28
|\ \
| * | powerpc/embedded6xx: Update defconfigsKumar Gala2009-01-26
| | | | | | | | | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | powerpc/8xx: Update defconfigsKumar Gala2009-01-26
| | | | | | | | | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | powerpc/86xx: Update defconfigsKumar Gala2009-01-26
| | | | | | | | | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | powerpc/83xx: Update defconfigsKumar Gala2009-01-26
| | | | | | | | | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | powerpc/85xx: Update defconfigsKumar Gala2009-01-26
| | | | | | | | | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | powerpc/mpc8313erdb: fix kernel panic because mdio device is not probedLi Yang2009-01-26
| | | | | | | | | | | | | | | | | | | | | | | | Probe the new mdio node added by b31a1d8b. Fix kernel panic problem when gianfar driver wants to get the of_platform_device of that mdio. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | powerpc/85xx: Fix typo in mpc8572ds dtsKumar Gala2009-01-20
| |/ | | | | | | | | | | The localbus node flash had a minor typo for a read-only property. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* / eeprom: More consistent symbol namesJean Delvare2009-01-26
|/ | | | | | | | | | | | Now that all EEPROM drivers live in the same place, let's harmonize their symbol names. Also fix eeprom's dependencies, it definitely needs sysfs, and is no longer experimental after many years in the kernel tree. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Cc: David Brownell <dbrownell@users.sourceforge.net>
* powerpc: Get the number of SLBs from "slb-size" propertyMichael Neuling2009-01-16
| | | | | | | | | | | | | The PAPR says that the property for specifying the number of SLBs should be called "slb-size". We currently only look for "ibm,slb-size" because this is what firmware actually presents. This patch makes us look for the "slb-size" property as well and in preference to the "ibm,slb-size". This should future proof us if firmware changes to match PAPR. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: is_hugepage_only_range() must account for both 4kB and 64kB slicesDave Kleikamp2009-01-16
| | | | | | | | | | | powerpc: is_hugepage_only_range() must account for both 4kB and 64kB slices The subpage_prot syscall fails on second and subsequent calls for a given region, because is_hugepage_only_range() is mis-identifying the 4 kB slices when the process has a 64 kB page size. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/ps3: Printing fixups for l64 to ll64 conversion arch/powerpcStephen Rothwell2009-01-16
| | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/ps3: ps3_repository_read_mm_info() takes u64 * argumentsStephen Rothwell2009-01-16
| | | | | | | | | | | Fixes compiler warnings: arch/powerpc/platforms/ps3/mm.c:1205: warning: passing argument 2 of 'ps3_repository_read_mm_info' from incompatible pointer type arch/powerpc/platforms/ps3/mm.c:1205: warning: passing argument 3 of 'ps3_repository_read_mm_info' from incompatible pointer type Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/ps3: clear_bit()/set_bit() operate on unsigned longsStephen Rothwell2009-01-16
| | | | | | | | | | | This fixes these compiler warning: arch/powerpc/platforms/ps3/interrupt.c:109: warning: passing argument 2 of 'clear_bit' from incompatible pointer type arch/powerpc/platforms/ps3/interrupt.c:130: warning: passing argument 2 of 'set_bit' from incompatible pointer type Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/ps3: The lv1_ routines have u64 parametersStephen Rothwell2009-01-16
| | | | | | | | | | | | | | | | | | We just fix up the reference parameters as the others are dealt with by arithmetic promotion rules and don't cause warnings. This removes warnings like this: arch/powerpc/platforms/ps3/interrupt.c:327: warning: passing argument 1 of 'lv1_construct_event_receive_port' from incompatible pointer type Also, these: drivers/ps3/ps3-vuart.c:462: warning: passing argument 4 of 'ps3_vuart_raw_read' from incompatible pointer type drivers/ps3/ps3-vuart.c:592: warning: passing argument 4 of 'ps3_vuart_raw_read' from incompatible pointer type Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/ps3: Use dma_addr_t down through the stackStephen Rothwell2009-01-16
| | | | | | | | | | | | | | Push the dma_addr_t type usage all the way down to where the actual values are manipulated. Now that u64 is "unsigned long long", this removes warnings like: arch/powerpc/platforms/ps3/system-bus.c:532: warning: passing argument 4 of 'ps3_dma_map' from incompatible pointer type arch/powerpc/platforms/ps3/system-bus.c:649: warning: passing argument 4 of 'ps3_dma_map' from incompatible pointer type Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/ps3: set_dabr() takes an unsigned longStephen Rothwell2009-01-16
| | | | | | | | | | Also silences this warning: arch/powerpc/platforms/ps3/setup.c:275: warning: initialization from incompatible pointer type Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge branch 'merge' of ↵Linus Torvalds2009-01-14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (29 commits) powerpc/83xx: Move mcu_mpc8349emitx driver out of drivers/i2c/chips/ powerpc/83xx: Make serial ports work on MPC8315E-RDB w/ FSL U-Boots powerpc/e500mc: Doorbells need to be taken w/exceptions disabled powerpc: Enable PS3 options and QPACE in ppc64_defconfig powerpc/powermac: Fix occasional SMP boot failure powerpc/cacheinfo: Rename cache_dir per-cpu variable hvc_console: Use kzalloc() instead of kmalloc() + memset() hvc_console: Do not set low_latency when using interrupts hvc_console: Call free_irq() only if request_irq() was successful hvc_console: Change an mb() to smp_mb() and add some comments powerpc: Cleanup from l64 to ll64 change: drivers/net powerpc: Cleanup from l64 to ll64 change: drivers/char powerpc: Cleanup from l64 to ll64 change: arch code powerpc: Change u64/s64 to a long long integer type powerpc/kexec: Check crash_base for relocatable kernel powerpc: Make dummy section a valid note header Xilinx: SPI: updated driver for device tree drivers/of: Add the of_find_i2c_device_by_node function. powerpc/xsysace: add compatible string for non-ipcore instance powerpc/mpc52xx: remove dead code from GPIO driver ...
| * powerpc/83xx: Move mcu_mpc8349emitx driver out of drivers/i2c/chips/Anton Vorontsov2009-01-13
| | | | | | | | | | | | | | | | | | | | This patch is used to help Jean Delvare to get rid of drivers/i2c/chips/ directory. The new location suggested by Kumar Gala: as the driver is 83xx specific it's placed into arch/powerpc/platforms/83xx/. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/83xx: Make serial ports work on MPC8315E-RDB w/ FSL U-BootsAnton Vorontsov2009-01-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | FSL U-Boots use /soc8315@e0000000 node to search and fixup serial nodes' clock-frequency properties. Though in upstream kernels we use new naming convention -- for IMMR address space dts files specify /immr@e0000000 nodes. This makes FSL U-Boots fail to fixup the clock frequencies, and that leads to serial ports misbehaviour. We can workaround the issue by filling the clock frequency values manually. p.s. For the same reason FSL U-Boots fail to fixup MAC addresses for ethernet nodes, so users should either change the .dts file locally or set MAC address via `ifconfig hw ether' command. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/e500mc: Doorbells need to be taken w/exceptions disabledKumar Gala2009-01-13
| | | | | | | | | | | | | | | | We use Doorbell interrupts for IPIs and thus we need to make sure we aren't interrupted in the process of processing the IPI. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Dave Liu <daveliu@freescale.com>
| * powerpc: Enable PS3 options and QPACE in ppc64_defconfigMichael Ellerman2009-01-12
| | | | | | | | | | | | | | To increase the amount of code that's built for a defconfig build. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc/powermac: Fix occasional SMP boot failureBenjamin Herrenschmidt2009-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PowerMac kernel occasionally fails to bring up the secondary CPUs on SMP, the trigger factor seem to be fairly random and related to location of code and data. This appears to be due to the initial loading of the TOC value by the secondary processor which now happens before we clear HID4:RM_CI (Real Mode Cache Invalidate). This bit should really be cleared before we do any load or store other than fetching code. This fix works based on the assumption that all SMP 64-bit PowerMacs use variants of the 970, which fortunately is true, by explicitely clearing that bit, adding an slbia for good measure as RM_CI mode is known to create bogus ERAT entries. I also removed some spurrious debug output that was left enabled by mistake while at it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc/cacheinfo: Rename cache_dir per-cpu variableNathan Lynch2009-01-12
| | | | | | | | | | | | | | | | The per_cpu__ prefix on DECLARE_PER_CPU'd variables is going away; rename cache_dir to cache_dir_pcpu. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc: Cleanup from l64 to ll64 change: arch codeStephen Rothwell2009-01-12
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-25 13:36:21 -0500