- 12 Sep, 2005 33 commits
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Paul Jackson authored
Optimize the deadlock avoidance check on the global cpuset semaphore cpuset_sem. Instead of adding a depth counter to the task struct of each task, rather just two words are enough, one to store the depth and the other the current cpuset_sem holder. Thanks to Nikita Danilov for the idea. Signed-off-by:
Paul Jackson <pj@sgi.com> [ We may want to change this further, but at least it's now a totally internal decision to the cpusets code ] Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Evgeniy Polyakov authored
Remove w1 comments from crc16.h and move specific constants into w1_ds2433.c where they are used. Replace %d with %zd. Signed-off-by:
Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by:
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Linus Torvalds authored
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Linus Torvalds authored
..and only enable them for ia64. The functions are only valid when the whole system has been totally stopped and no scheduler activity is ongoing on any CPU, and interrupts are globally disabled. In other words, they aren't useful for anything else. So make sure that nobody can use them by mistake. Signed-off-by: -
Roland McGrath authored
Signed-off-by:
Roland McGrath <roland@redhat.com> Acked-by:
Atsushi Nemoto <anemo@mba.ocn.ne.jp> Acked-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Anton Blanchard authored
ppc64_attention_msg and ppc64_dump_msg are not used so remove them. Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
Paul Mackerras <paulus@samba.org>
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Anton Blanchard authored
If the rtas start-cpu token doesnt exist then presume the cpu is already spinning. If it isnt we will catch it later on when the cpu doesnt respond. Signed-off-by:
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Anton Blanchard authored
Fix up some badly indented code. Signed-off-by:
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Anton Blanchard authored
A few xics cleanups: - Make some things static. - Be more consistent with error printing - interrupts are unsigned, error values are signed. Signed-off-by:
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Anton Blanchard authored
Add hardware data breakpoint support. Signed-off-by:
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Anton Blanchard authored
- Add PTRACE_GET_DEBUGREG/PTRACE_SET_DEBUGREG. The definition is as follows: /* * Get or set a debug register. The first 16 are DABR registers and the * second 16 are IABR registers. */ #define PTRACE_GET_DEBUGREG 25 #define PTRACE_SET_DEBUGREG 26 DABR == data breakpoint and IABR = instruction breakpoint in IBM speak. We could split out the IABR into 2 more ptrace calls but I figured there was no need and 16 DABR registers should be more than enough (POWER4/POWER5 have one). - Add 2 new SIGTRAP si_codes: TRAP_HWBKPT and TRAP_BRANCH. I couldnt find any standards on either of these so I copied what ia64 is doing. Again this might be better placed in include/asm-generic/siginfo.h Signed-off-by:
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Anton Blanchard authored
Fix up some whitespace issues in ptrace32.c Signed-off-by:
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Anton Blanchard authored
- Remove the PPC_REG* defines - Wrap some more stuff with ifdef __KERNEL__ - Add missing PT_TRAP, PT_DAR, PT_DSISR defines - Add PTRACE_GETEVRREGS/PTRACE_SETEVRREGS, even though we dont use it on ppc64 we dont want to allocate them for something else. Signed-off-by:
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Robert Jennings authored
The ptrace get and set methods for VMX/Altivec registers present in the ppc tree were missing for ppc64. This patch adds the 32-bit and 64-bit methods. Updated with the suggestions from Anton following the lines of his code snippet. Added: - flush_altivec_to_thread calls as suggested by Anton - piecewise copy of structure to preserve 32-bit vrsave data as per Anton (I consolidated the 32 and 64bit versions with 2 helper macros - Anton) Signed-off-by:
Robert C Jennings <rcjenn@austin.ibm.com> Signed-off-by:
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Paul Mackerras authored
This adds code which gives us the option on ppc64 of instantiating the PCI tree (the tree of pci_bus and pci_dev structs) from the Open Firmware device tree rather than by probing PCI configuration space. The OF device tree has a node for each PCI device and bridge in the system, with properties that tell us what addresses the firmware has configured for them and other details. There are a couple of reasons why this is needed. First, on systems with a hypervisor, there is a PCI-PCI bridge per slot under the PCI host bridges. These PCI-PCI bridges have special isolation features for virtualization. We can't write to their config space, and we are not supposed to be reading their config space either. The firmware tells us about the address ranges that they pass in the OF device tree. Secondly, on powermacs, the interrupt controller is in a PCI device that may be behind a PCI-PCI bridge. If we happened to take an interrupt just at the point when the device or a bridge on the path to it was disabled for probing, we would crash when we try to access the interrupt controller. I have implemented a platform-specific function which is called for each PCI bridge (host or PCI-PCI) to say whether the code should look in the device tree or use normal PCI probing for the devices under that bridge. On pSeries machines we use the device tree if we're running under a hypervisor, otherwise we use normal probing. On powermacs we use normal probing for the AGP bridge, since the device for the AGP bridge itself isn't shown in the device tree (at least on my G5), and the device tree for everything else. This has been tested on a dual G5 powermac, a partition on a POWER5 machine (running under the hypervisor), and a legacy iSeries partition. Signed-off-by: -
Antonino A. Daplas authored
Update i810fb documentation to describe new features and configuration changes. Signed-off-by:
Antonino Daplas <adaplas@pol.net> Signed-off-by:
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Antonino A. Daplas authored
Reported by: Manuel Lauss <mano@roarinelk.homelinux.net> He was getting random initial video modes depending on the kernel configuration. His option line includes 'extvga'. The i810fb documentation describes the option 'extvga', however the driver accepts 'ext_vga'. Besides 'extvga' being ignored by i810fb, it also confuses the option parser of i810fb and assigns 'extvga' to 'mode_option'. This leads to an incorrect video mode at boot time. Signed-off-by:
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Antonino A. Daplas authored
If i810fb successfully probed for the EDID, it will disregard the boot option parameters 'xres' and 'yres'. Fix this regression. Excellent testing done by Manuel Lauss <mano@roarinelk.homelinux.net>. Signed-off-by:
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Antonino A. Daplas authored
Reported by: Manuel Lauss <mano@roarinelk.homelinux.net> compiled with CONFIG_FB_I810_I2C = n and CONFIG_FB_I810 = y it oopses at boot in file drivers/video/i810/i810_main.c:1884 ... Unable to handle kernel NULL pointer dereference at virtual address 00000054 printing eip: c02543c0 *pde = 00000000 Oops: 0000 [#1] last sysfs file: Modules linked in: CPU: 0 EIP: 0060:[<c02543c0>] Not tainted VLI EFLAGS: 00010286 (2.6.13-mm2) EIP is at i810fb_find_init_mode+0x53/0x93 eax: c113ddd4 ebx: c1194000 ecx: c04be2dd edx: c1194000 esi: c1194008 edi: c113ddd4 ebp: c1194240 esp: c113ddcc ds: 007b es: 007b ss: 0068 struct fb_monspecs *specs is initialized to NULL causing the oops. Signed-off-by:
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Greg Ungerer authored
Create common start code for all 68360 based platforms that are loaded and run directly from RAM (as opposed to running from flash/ROM). This replaces the old specific startup code for each board. Signed-off-by:
Greg Ungerer <gerg@uclinux.com> Signed-off-by:
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Greg Ungerer authored
Allow for differences in the SDRAM controller setup and GPIO pin setup of the 5270/1 and 5274/5 parts. With separate config options for each now this no longer needs to be board specific. Signed-off-by:
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Greg Ungerer authored
Add support for the FEC ethernet driver of the Freescale 523x processor family to the FEC header definitions. Signed-off-by:
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Greg Ungerer authored
Add QSPI register definitions of ColdFIre 528x processor SPI controller. Patch originally submitted by Derek Cheung <derek.cheung@sympatico.ca> Signed-off-by:
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Greg Ungerer authored
Move call to get_mm_counter() in update_mem_hiwater() to be inside the check for tsk->mm being null. Otherwise you can be following a null pointer here. This patch submitted by Javier Herrero <jherrero@hvsistemas.es>. Modify the end check for munmap regions to allow for the legacy behavior of 0 being valid. Pretty much all current uClinux system libc malloc's pass in 0 as the end point. A hard check will fail on these, so change the check so that if it is non-zero it must be valid otherwise it fails. A passed in value will always succeed (as it used too). Also export a few more mm system functions - to be consistent with the VM code exports. Signed-off-by:
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Greg Ungerer authored
Support the DMA unit of the ColdFire 523x processor family. Signed-off-by:
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Greg Ungerer authored
We should not call mtd_put_device() in the uclinux MTD map driver. Also consistently use phys/virt fields of maps map_info struct, instead of mixing it with map_priv_1. Signed-off-by:
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Greg Ungerer authored
Add support for the new Freescale 523x processor family to ColdFire serial driver. Also set different default baud rate for MOD5272 board. Signed-off-by:
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Greg Ungerer authored
Change addr arg to find_next_zero_bit to be a const. Cleans up compiler warning. Signed-off-by:
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Greg Ungerer authored
Bring arg types for csum_partial_copy and csum_paritial_copy_from_user prototypes into line with their actual implementation. Signed-off-by:
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Greg Ungerer authored
Create common start code for all 68360 based platforms that are loaded and run directly from ROM/flash (as opposed to running from RAM). This replaces the old specific startup code for each board. Signed-off-by:
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Greg Ungerer authored
Add support for the cache of the ColdFIre 523x family of processors. Enable the 528x cache by default now, all final shipping silicon has the cache bug fixed. Signed-off-by:
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Greg Ungerer authored
A few improvements to the Freescale/ColdFire FEC driver: . some formatting cleanups . add support for the FEC device in the ColdFire 523x processor family . add support for MAC address setting on MOD5272 and M5272C3 boards . don't re-read the PHY status register many times . ack status interrupt before reading status register . move printing init message to after full init (so that the ethX name is filled out for printing) Some parts of this patch submitted by Philippe De Muyter <phdm@macqel.be> Signed-off-by:
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Greg Ungerer authored
Add configuration support for the FEC ethernet controller in the Freescale 523x processor family. Also add and option to configure the second FEC controller on some Freescale processors. Signed-off-by:
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- 11 Sep, 2005 7 commits
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Linus Torvalds authored
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Tony Luck authored
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Tony Luck authored
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Keith Owens authored
Delete the special case unwind code that was only used by the old MCA/INIT handler. Signed-off-by:
Keith Owens <kaos@sgi.com> Signed-off-by:
Tony Luck <tony.luck@intel.com>
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Keith Owens authored
Remove the physical mode path from minstate.h. Signed-off-by:
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Keith Owens authored
The bulk of the change. Use per cpu MCA/INIT stacks. Change the SAL to OS state (sos) to be per process. Do all the assembler work on the MCA/INIT stacks, leaving the original stack alone. Pass per cpu state data to the C handlers for MCA and INIT, which also means changing the mca_drv interfaces slightly. Lots of verification on whether the original stack is usable before converting it to a sleeping process. Signed-off-by:
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Keith Owens authored
Reading the INIT record from SAL during the INIT event has proved to be unreliable, and a source of hangs during INIT processing. The new MCA/INIT handlers remove the need to get the INIT record from SAL. Change salinfo.c so mca.c can just flag that a new record is available, without having to read the record during INIT processing. This patch can be applied without the new MCA/INIT handlers. Also clean up some usage of NR_CPUS which should have been using cpu_online(). Signed-off-by:
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