Jeff Dike [Mon, 16 Jul 2007 19:24:47 +0000 (15:24 -0400)]
KVM: add hypercall nr to kvm_run
Add the hypercall number to kvm_run and initialize it. This changes the ABI,
but as this particular ABI was unusable before this no users are affected.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Yang, Sheng [Sun, 29 Jul 2007 08:07:42 +0000 (11:07 +0300)]
KVM: VMX: Improve the method of writing vmcs control
Put cpu feature detecting part in hardware_setup, and stored the vmcs
condition in global variable for further check.
[glommer: fix for some i386-only machines not supporting CR8 load/store
exiting]
Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Fri, 27 Jul 2007 07:16:56 +0000 (17:16 +1000)]
KVM: Dynamically allocate vcpus
This patch converts the vcpus array in "struct kvm" to a pointer
array, and changes the "vcpu_create" and "vcpu_setup" hooks into one
"vcpu_create" call which does the allocation and initialization of the
vcpu (calling back into the kvm_vcpu_init core helper).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Gregory Haskins [Fri, 27 Jul 2007 12:13:10 +0000 (08:13 -0400)]
KVM: Remove arch specific components from the general code
struct kvm_vcpu has vmx-specific members; remove them to a private structure.
Signed-off-by: Gregory Haskins <ghaskins@novell.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Wed, 25 Jul 2007 03:29:51 +0000 (13:29 +1000)]
KVM: load_pdptrs() cleanups
load_pdptrs can be handed an invalid cr3, and it should not oops.
This can happen because we injected #gp in set_cr3() after we set
vcpu->cr3 to the invalid value, or from kvm_vcpu_ioctl_set_sregs(), or
memory configuration changes after the guest did set_cr3().
We should also copy the pdpte array once, before checking and
assigning, otherwise an SMP guest can potentially alter the values
between the check and the set.
Finally one nitpick: ret = 1 should be done as late as possible: this
allows GCC to check for unset "ret" should the function change in
future.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Aurelien Jarno [Wed, 25 Jul 2007 09:41:57 +0000 (11:41 +0200)]
KVM: Remove dead code in the cmpxchg instruction emulation
The writeback fixes (
02c03a326a5df825cc01de426f72e160db2b9538) let
some dead code in the cmpxchg instruction emulation. Remove it.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Yang, Sheng [Wed, 25 Jul 2007 09:17:06 +0000 (12:17 +0300)]
KVM: VMX: Import some constants of vmcs from IA32 SDM
This patch mainly imports some constants and rename two exist constants
of vmcs according to IA32 SDM.
It also adds two constants to indicate Lock bit and Enable bit in
MSR_IA32_FEATURE_CONTROL, and replace the hardcode _5_ with these two
bits.
Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Shaohua Li [Mon, 23 Jul 2007 06:51:39 +0000 (14:51 +0800)]
KVM: Move gfn_to_page out of kmap/unmap pairs
gfn_to_page might sleep with swap support. Move it out of the kmap calls.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Shaohua Li [Mon, 23 Jul 2007 06:51:32 +0000 (14:51 +0800)]
KVM: Hoist kvm_mmu_reload() out of the critical section
vmx_cpu_run doesn't handle error correctly and kvm_mmu_reload might
sleep with mutex changes, so I move it above.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Mon, 23 Jul 2007 07:11:02 +0000 (17:11 +1000)]
KVM: Return if the pdptrs are invalid when the guest turns on PAE.
Don't fall through and turn on PAE in this case.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Sun, 22 Jul 2007 12:51:58 +0000 (15:51 +0300)]
KVM: x86 emulator: fix faulty check for two-byte opcode
Right now, the bug is harmless as we never emulate one-byte 0xb6 or 0xb7.
But things may change.
Noted by the mysterious Gabriel C.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Fri, 20 Jul 2007 09:30:58 +0000 (12:30 +0300)]
KVM: x86 emulator: fix cmov for writeback changes
The writeback fixes (
02c03a326a5df825cc01de426f72e160db2b9538) broke
cmov emulation. Fix.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Tue, 17 Jul 2007 13:37:17 +0000 (23:37 +1000)]
KVM: Use standard CR8 flags, and fix TPR definition
Intel manual (and KVM definition) say the TPR is 4 bits wide. Also fix
CR8_RESEVED_BITS typo.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Jeff Dike [Tue, 17 Jul 2007 16:26:59 +0000 (12:26 -0400)]
KVM: Set exit_reason to KVM_EXIT_MMIO where run->mmio is initialized.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Wed, 18 Jul 2007 03:05:58 +0000 (13:05 +1000)]
KVM: Trivial: Use standard BITMAP macros, open-code userspace-exposed header
Creating one's own BITMAP macro seems suboptimal: if we use manual
arithmetic in the one place exposed to userspace, we can use standard
macros elsewhere.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Tue, 17 Jul 2007 13:34:16 +0000 (23:34 +1000)]
KVM: Use standard CR4 flags, tighten checking
On this machine (Intel), writing to the CR4 bits 0x00000800 and
0x00001000 cause a GPF. The Intel manual is a little unclear, but
AFIACT they're reserved, too.
Also fix spelling of CR4_RESEVED_BITS.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Tue, 17 Jul 2007 13:32:55 +0000 (23:32 +1000)]
KVM: Use standard CR3 flags, tighten checking
The kernel now has asm/cpu-features.h: use those macros instead of inventing
our own.
Also spell out definition of CR3_RESEVED_BITS, fix spelling and
tighten it for the non-PAE case.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Tue, 17 Jul 2007 13:19:08 +0000 (23:19 +1000)]
KVM: Trivial: Use standard CR0 flags macros from asm/cpu-features.h
The kernel now has asm/cpu-features.h: use those macros instead of
inventing our own.
Also spell out definition of CR0_RESEVED_BITS (no code change) and fix typo.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Tue, 17 Jul 2007 13:17:55 +0000 (23:17 +1000)]
KVM: Trivial: Avoid hardware_disable predeclaration
Don't pre-declare hardware_disable: shuffle the reboot hook down.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Tue, 17 Jul 2007 13:16:56 +0000 (23:16 +1000)]
KVM: Trivial: Comment spelling may escape grep
Speling error in comment.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Tue, 17 Jul 2007 13:16:11 +0000 (23:16 +1000)]
KVM: Trivial: Make decode_register() static
I have shied away from touching x86_emulate.c (it could definitely use
some love, but it is forked from the Xen code, and it would be more
productive to cross-merge fixes).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Tue, 17 Jul 2007 13:15:29 +0000 (23:15 +1000)]
KVM: Trivial: Remove unused struct cpu_user_regs declaration
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Rusty Russell [Tue, 17 Jul 2007 13:12:26 +0000 (23:12 +1000)]
KVM: Trivial: /dev/kvm interface is no longer experimental.
KVM interface is no longer experimental.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Eddie Dong [Tue, 17 Jul 2007 08:52:33 +0000 (11:52 +0300)]
KVM: In-kernel string pio write support
Add string pio write support to support some version of Windows.
Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Tue, 17 Jul 2007 08:45:55 +0000 (11:45 +0300)]
KVM: Future-proof the exit information union ABI
Note that as the size of struct kvm_run is not part of the ABI, we can add
things at the end.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Qing He [Thu, 12 Jul 2007 09:33:56 +0000 (12:33 +0300)]
KVM: SMP: Add vcpu_id field in struct vcpu
This patch adds a `vcpu_id' field in `struct vcpu', so we can
differentiate BSP and APs without pointer comparison or arithmetic.
Signed-off-by: Qing He <qing.he@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Nguyen Anh Quynh [Wed, 11 Jul 2007 11:30:54 +0000 (14:30 +0300)]
KVM: Fix *nopage() in kvm_main.c
*nopage() in kvm_main.c should only store the type of mmap() fault if
the pointers are not NULL. This patch fixes the problem.
Signed-off-by: Nguyen Anh Quynh <aquynh@gmail.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Thu, 27 Sep 2007 08:07:04 +0000 (10:07 +0200)]
i386: Expose IOAPIC register definitions even if CONFIG_X86_IO_APIC is not set
KVM reuses the IOAPIC register definitions, and needs them even if the
host is not compiled with IOAPIC support. Move the #ifdef below so that only
the IOAPIC variables and functions are protected, and the register definitions
are available to all.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Jeff Garzik [Sat, 13 Oct 2007 02:34:40 +0000 (22:34 -0400)]
x86/pci/acpi: fix DMI const-ification fallout
Fix DMI const-ification fallout that appeared when merging subsystem
trees.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nick Piggin [Sat, 13 Oct 2007 01:07:38 +0000 (03:07 +0200)]
x86: optimise barriers
According to latest memory ordering specification documents from Intel
and AMD, both manufacturers are committed to in-order loads from
cacheable memory for the x86 architecture. Hence, smp_rmb() may be a
simple barrier.
Also according to those documents, and according to existing practice in
Linux (eg. spin_unlock doesn't enforce ordering), stores to cacheable
memory are visible in program order too. Special string stores are safe
-- their constituent stores may be out of order, but they must complete
in order WRT surrounding stores. Nontemporal stores to WB memory can go
out of order, and so they should be fenced explicitly to make them
appear in-order WRT other stores. Hence, smp_wmb() may be a simple
barrier.
http://developer.intel.com/products/processor/manuals/318147.pdf
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/24593.pdf
In userspace microbenchmarks on a core2 system, fence instructions range
anywhere from around 15 cycles to 50, which may not be totally
insignificant in performance critical paths (code size will go down
too).
However the primary motivation for this is to have the canonical barrier
implementation for x86 architecture.
smp_rmb on buggy pentium pros remains a locked op, which is apparently
required.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nick Piggin [Sat, 13 Oct 2007 01:06:55 +0000 (03:06 +0200)]
x86: fix IO write barrier
wmb() on x86 must always include a barrier, because stores can go out of
order in many cases when dealing with devices (eg. WC memory).
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nick Piggin [Sat, 13 Oct 2007 01:06:00 +0000 (03:06 +0200)]
x86: fence oostores on 64-bit
movnt* instructions are not strongly ordered with respect to other stores,
so if we are to assume stores are strongly ordered in the rest of the 64
bit code, we must fence these off (see similar examples in 32 bit code).
[ The AMD memory ordering document seems to say that nontemporal stores can
also pass earlier regular stores, so maybe we need sfences _before_
movnt* everywhere too? ]
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 13 Oct 2007 00:58:36 +0000 (17:58 -0700)]
Only enable BLOCK_COMPAT if COMPAT is needed
IOW, it needs to depend on both CONFIG_BLOCK and CONFIG_COMPAT.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 12 Oct 2007 23:16:41 +0000 (16:16 -0700)]
Merge branch 'upstream' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (119 commits)
[libata] struct pci_dev related cleanups
libata: use ata_exec_internal() for PMP register access
libata: implement ATA_PFLAG_RESETTING
libata: add @timeout to ata_exec_internal[_sg]()
ahci: fix notification handling
ahci: clean up PORT_IRQ_BAD_PMP enabling
ahci: kill leftover from enabling NCQ over PMP
libata: wrap schedule_timeout_uninterruptible() in loop
libata: skip suppress reporting if ATA_EHI_QUIET
libata: clear ehi description after initial host report
pata_jmicron: match vendor and class code only
libata: add ST9160821AS / 3.ALD to NCQ blacklist
pata_acpi: ACPI driver support
libata-core: Expose gtm methods for driver use
libata: add HDT722516DLA380 to NCQ blacklist
libata: blacklist NCQ on Seagate Barracuda ST380817AS
[libata] Turn on ACPI by default
libata_scsi: Fix ATAPI transfer lengths
libata: correct handling of SRST reset sequences
libata: Integrate ACPI-based PATA/SATA hotplug - version 5
...
Andi Kleen [Fri, 12 Oct 2007 23:01:08 +0000 (01:01 +0200)]
Update maintainers file
Since there is no x86-64 architecture anymore it cannot be maintained.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 12 Oct 2007 22:50:23 +0000 (15:50 -0700)]
Merge /pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (37 commits)
PCI: merge almost all of pci_32.h and pci_64.h together
PCI: X86: Introduce and enable PCI domain support
PCI: Add 'nodomains' boot option, and pci_domains_supported global
PCI: modify PCI bridge control ISA flag for clarity
PCI: use _CRS for PCI resource allocation
PCI: avoid P2P prefetch window for expansion ROMs
PCI: skip ISA ioresource alignment on some systems
PCI: remove transparent bridge sizing
pci: write file size to inode on proc bus file write
pci: use size stored in proc_dir_entry for proc bus files
pci: implement "pci=noaer"
PCI: fix IDE legacy mode resources
MSI: Use correct data offset for 32-bit MSI in read_msi_msg()
PCI: Fix incorrect argument order to list_add_tail() in PCI dynamic ID code
PCI: i386: Compaq EVO N800c needs PCI bus renumbering
PCI: Remove no longer correct documentation regarding MSI vector assignment
PCI: re-enable onboard sound on "MSI K8T Neo2-FIR"
PCI: quirk_vt82c586_acpi: Omit reading PCI revision ID
PCI: quirk amd_8131_mmrbc: Omit reading pci revision ID
cpqphp: Use PCI_CLASS_REVISION instead of PCI_REVISION_ID for read
...
Linus Torvalds [Fri, 12 Oct 2007 22:49:37 +0000 (15:49 -0700)]
Merge /pub/scm/linux/kernel/git/gregkh/driver-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (75 commits)
PM: merge device power-management source files
sysfs: add copyrights
kobject: update the copyrights
kset: add some kerneldoc to help describe what these strange things are
Driver core: rename ktype_edd and ktype_efivar
Driver core: rename ktype_driver
Driver core: rename ktype_device
Driver core: rename ktype_class
driver core: remove subsystem_init()
sysfs: move sysfs file poll implementation to sysfs_open_dirent
sysfs: implement sysfs_open_dirent
sysfs: move sysfs_dirent->s_children into sysfs_dirent->s_dir
sysfs: make sysfs_root a regular directory dirent
sysfs: open code sysfs_attach_dentry()
sysfs: make s_elem an anonymous union
sysfs: make bin attr open get active reference of parent too
sysfs: kill unnecessary NULL pointer check in sysfs_release()
sysfs: kill unnecessary sysfs_get() in open paths
sysfs: reposition sysfs_dirent->s_mode.
sysfs: kill sysfs_update_file()
...
Linus Torvalds [Fri, 12 Oct 2007 22:49:10 +0000 (15:49 -0700)]
Merge /pub/scm/linux/kernel/git/gregkh/usb-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (142 commits)
USB: fix race in autosuspend reschedule
atmel_usba_udc: Keep track of the device status
USB: Nikon D40X unusual_devs entry
USB: serial core should respect driver requirements
USB: documentation for USB power management
USB: skip autosuspended devices during system resume
USB: mutual exclusion for EHCI init and port resets
USB: allow usbstorage to have LUNS greater than 2Tb
USB: Adding support for SHARP WS011SH to ipaq.c
USB: add atmel_usba_udc driver
USB: ohci SSB bus glue
USB: ehci build fixes on au1xxx, ppc-soc
USB: add runtime frame_no quirk for big-endian OHCI
USB: funsoft: Fix termios
USB: visor: termios bits
USB: unusual_devs entry for Nikon DSC D2Xs
USB: re-remove <linux/usb_sl811.h>
USB: move <linux/usb_gadget.h> to <linux/usb/gadget.h>
USB: Export URB statistics for powertop
USB: serial gadget: Disable endpoints on unload
...
Linus Torvalds [Fri, 12 Oct 2007 22:42:01 +0000 (15:42 -0700)]
Merge /pub/scm/linux/kernel/git/davej/cpufreq
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Don't take semaphore in cpufreq_quick_get()
[CPUFREQ] Support different families in fid/did to frequency conversion
[CPUFREQ] cpufreq_stats: misc cpuinit section annotations
[CPUFREQ] implement !CONFIG_CPU_FREQ stub for cpufreq_unregister_notifier()
[CPUFREQ] mark hotplug notifier callback as __cpuinit
[CPUFREQ] Only check for transition latency on problematic governors (kconfig fix)
[CPUFREQ] allow ondemand and conservative cpufreq governors to be used as default
[CPUFREQ] move policy's governor initialisation out of low-level drivers into cpufreq core
[CPUFREQ] Longhaul - Add support for PM133 northbridge
[CPUFREQ] x86: use num_online_nodes to get physical cpus numbers for
Linus Torvalds [Fri, 12 Oct 2007 22:39:39 +0000 (15:39 -0700)]
Merge git://git./linux/kernel/git/tglx/linux-2.6-x86
* git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86: (40 commits)
x86: HPET add another ICH7 PCI id
x86: HPET force enable ICH5 suspend/resume fix
x86: HPET force enable for ICH5
x86: HPET try to activate force detected hpet
x86: HPET force enable o ICH7 and later
x86: HPET restructure hpet code for hpet force enable
clock events: allow replacement of broadcast timer
i386/x8664: cleanup the shared hpet code
i386: Remove the useless #ifdef in i8253.h
ACPI: remove the now unused ifdef code
jiffies: remove unused macros
x86_64: cleanup apic.c after clock events switch
x86_64: remove now unused code
x86: unify timex.h variants
x86: kill 8253pit.h
x86: disable apic timer for AMD C1E enabled CPUs
x86: Fix irq0 / local apic timer accounting
x86_64: convert to clock events
x86_64: Add (not yet used) clock event functions
x86_64: prepare idle loop for dynamic ticks
...
Linus Torvalds [Fri, 12 Oct 2007 22:04:00 +0000 (15:04 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: (23 commits)
ocfs2: Optionally return filldir errors
ocfs2: Write support for directories with inline data
ocfs2: Read support for directories with inline data
ocfs2: Write support for inline data
ocfs2: Read support for inline data
ocfs2: Structure updates for inline data
ocfs2: Cleanup dirent size check
ocfs2: Rename cleanups
ocfs2: Provide convenience function for ino lookup
ocfs2: Implement ocfs2_empty_dir() as a caller of ocfs2_dir_foreach()
ocfs2: Remove open coded readdir()
ocfs2: Pass raw u64 to filldir
ocfs2: Abstract out core dir listing functionality
ocfs2: Move directory manipulation code into dir.c
ocfs2: Small refactor of truncate zeroing code
ocfs2: move nonsparse hole-filling into ocfs2_write_begin()
ocfs2: Sync ocfs2_fs.h with ocfs2-tools
[PATCH] fs/ocfs2/: removed unneeded initial value and function's return value
ocfs2: Implement show_options()
ocfs2: Clear slot map when umounting a local volume
...
Linus Torvalds [Fri, 12 Oct 2007 22:03:35 +0000 (15:03 -0700)]
Merge branch 'isdn-cleanups' of /linux/kernel/git/jgarzik/misc-2.6
* 'isdn-cleanups' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
[ISDN] HiSax diva: split setup into three smaller functions
[ISDN] HiSax sedlbauer: move ISAPNP and PCI code into functions of their own
[ISDN] HiSax elsa: split huge setup function into four smaller functions
[ISDN] HiSax avm_pci: split setup into three smaller functions
[ISDN] Remove CONFIG_PCI ifdefs from 100% PCI source code
Greg Kroah-Hartman [Fri, 12 Oct 2007 21:07:23 +0000 (14:07 -0700)]
PCI: merge almost all of pci_32.h and pci_64.h together
It was just duplicated code...
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jeff Garzik [Thu, 11 Oct 2007 20:58:30 +0000 (16:58 -0400)]
PCI: X86: Introduce and enable PCI domain support
* fix bug in pci_read() and pci_write() which prevented PCI domain
support from working (hardcoded domain 0).
* unconditionally enable CONFIG_PCI_DOMAINS
* implement pci_domain_nr() and pci_proc_domain(), as required of
all arches when CONFIG_PCI_DOMAINS is enabled.
* store domain in struct pci_sysdata, as assigned by ACPI
* support "pci=nodomains"
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jeff Garzik [Thu, 11 Oct 2007 20:57:27 +0000 (16:57 -0400)]
PCI: Add 'nodomains' boot option, and pci_domains_supported global
* Introduce pci_domains_supported global, hardcoded to zero if
!CONFIG_PCI_DOMAINS.
* Introduce 'nodomains' boot option, which clears pci_domains_supported
on platforms that enable it by default (x86, x86-64, and others when
they are converted to use this).
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Gary Hade [Mon, 8 Oct 2007 23:24:16 +0000 (16:24 -0700)]
PCI: modify PCI bridge control ISA flag for clarity
Modify PCI Bridge Control ISA flag for clarity
This patch changes PCI_BRIDGE_CTL_NO_ISA to PCI_BRIDGE_CTL_ISA
and modifies it's clarifying comment and locations where used.
The change reduces the chance of future confusion since it makes
the set/unset meaning of the bit the same in both the bridge
control register and bridge_ctl field of the pci_bus struct.
Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Acked-by: Linas Vepstas <linas@austin.ibm.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Gary Hade [Wed, 3 Oct 2007 22:56:51 +0000 (15:56 -0700)]
PCI: use _CRS for PCI resource allocation
Use _CRS for PCI resource allocation
This patch resolves an issue where incorrect PCI memory and i/o ranges
are being assigned to hotplugged PCI devices on some IBM systems. The
resource mis-allocation not only makes the PCI device unuseable but
often makes the entire system unuseable due to resulting machine checks.
The hotplug capable PCI slots on the affected systems are not located
under a standard P2P bridge but are instead located under PCI root
bridges or subtractive decode P2P bridges. For example, the IBM x3850
contains 2 hotplug capable PCI-X slots and 4 hotplug capable PCIe slots
with the PCI-X slots each located under a PCI root bridge and the PCIe
slots each located under a subtractive decode P2P bridge.
The current i386/x86_64 PCI resource allocation code does not use _CRS
returned resource information. No other resource information source is
available for slots that are not below a standard P2P bridge so
incorrect ranges are being allocated from e820 hole causing the bad
result.
This patch causes the kernel to use _CRS returned resource info. It is
roughly based on a change provided by Matthew Wilcox for the ia64 kernel
in 2005. Due to possible buggy BIOS factor and possible yet to be
discovered kernel issues the function is disabled by default and can be
enabled with pci=use_crs.
Signed-off-by: Gary Hade <gary.hade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Gary Hade [Wed, 3 Oct 2007 22:56:30 +0000 (15:56 -0700)]
PCI: avoid P2P prefetch window for expansion ROMs
Avoid creating P2P prefetch window for expansion ROMs
Because of the future possibility that P2P prefetch windows will contain
address ranges above 4GB some BIOSes are providing space in the P2P
non-prefetch windows for expansion ROMs. This is due to expansion ROM
BAR 32-bit limitation. When expansion ROM BARs without BIOS assigned
address(es) are currently found behind a P2P bridge, the kernel attempts
to create a P2P prefetch window for them even though space for them has
already been provided in the non-prefetch window. _CRS on some systems
with certain resource conservation conscious BIOSes may not provide the
extra 1MB or more memory resource needed for the expansion ROM motivated
prefetch window causing resource allocation errors.
This change corrects the problem by removing IORESOURCE_PREFETCH from
the expansion ROM flags initialization. It also removes
IORESOURCE_CACHEABLE which seems inappropriate if only non-cacheable
memory is available.
Signed-off-by: Gary Hade <gary.hade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Gary Hade [Wed, 3 Oct 2007 22:56:14 +0000 (15:56 -0700)]
PCI: skip ISA ioresource alignment on some systems
Skip ISA ioresource alignment on some systems
To conserve limited PCI i/o resource on some IBM multi-node systems, the
BIOS allocates (via _CRS) and expects the kernel to use addresses in
ranges currently excluded by pcibios_align_resource() [i386/pci/i386.c].
This change allows the kernel to use the currently excluded address
ranges on the IBM x3800, x3850, and x3950.
Signed-off-by: Gary Hade <gary.hade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Gary Hade [Wed, 3 Oct 2007 22:55:51 +0000 (15:55 -0700)]
PCI: remove transparent bridge sizing
Remove transparent bridge sizing.
Due to code in pci_read_bridge_bases() [drivers/pci/probe.c] the child
bus of a transparent bridge already has access to the parent bus
resources so transparent bridge sizing appears unnecessary. The bridge
sizing includes alignment and granularity adjustments that can cause
significantly more memory to be reserved from the parant bus than
required by devices on the child bus and allotted by _CRS.
Signed-off-by: Gary Hade <gary.hade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Rientjes [Thu, 27 Sep 2007 20:41:17 +0000 (13:41 -0700)]
pci: write file size to inode on proc bus file write
When a /proc/bus/pci file is written to, the size of that PCI device's
configuration space must be written to the inode. Otherwise, it is
possible for the file to specify a size of 0 on stat if a task is holding
the same file open.
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Rientjes [Thu, 27 Sep 2007 20:41:16 +0000 (13:41 -0700)]
pci: use size stored in proc_dir_entry for proc bus files
On pci_proc_attach_device(), the size of the PCI configuration space is
stored in the proc_dir_entry as the size of the file. Thus, the procfs
interface to PCI devices should use it instead of the device directly.
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Randy Dunlap [Fri, 5 Oct 2007 20:17:58 +0000 (13:17 -0700)]
pci: implement "pci=noaer"
For cases in which CONFIG_PCIEAER=y (such as distro kernels), allow users
to disable PCIE Advanced Error Reporting by using "pci=noaer" on the
kernel command line.
This can be used to work around hardware or (kernel) software problems.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Yoichi Yuasa [Tue, 2 Oct 2007 21:19:23 +0000 (14:19 -0700)]
PCI: fix IDE legacy mode resources
I got the following error on MIPS Cobalt.
PCI: Unable to reserve I/O region #1:8@
f00001f0 for device 0000:00:09.1
pata_via 0000:00:09.1: failed to request/iomap BARs for port 0 (errno=-16)
PCI: Unable to reserve I/O region #3:8@
f0000170 for device 0000:00:09.1
pata_via 0000:00:09.1: failed to request/iomap BARs for port 1 (errno=-16)
pata_via 0000:00:09.1: no available native port
The legacy mode IDE resources set the following order.
pci_setup_device()
Legacy mode ATA controllers have fixed addresses.
IDE resources: 0x1F0-0x1F7, 0x3F6, 0x170-0x177, 0x376
|
V
pcibios_fixup_bus()
MIPS Cobalt PCI bus regions have the -0x10000000 offset from PCI resources.
pcibios_fixup_bus() fix PCI bus regions.
0x1F0 - 0x10000000 = 0xF00001F0
|
V
ata_pci_init_one()
PCI: Unable to reserve I/O region #1:8@
f00001f0 for device 0000:00:09.1
In some architectures, PCI bus regions have the offset from PCI resources.
For this reason, pci_setup_device() should set PCI bus regions to
dev->resource[].
[akpm@linux-foundation.org: use struct initialiser]
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Greg KH <greg@kroah.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Roland Dreier [Wed, 3 Oct 2007 18:15:11 +0000 (11:15 -0700)]
MSI: Use correct data offset for 32-bit MSI in read_msi_msg()
While reading the MSI code trying to find a reason why MSI wouldn't
work for devices that have a 32-bit MSI address capability, I noticed
that read_msi_msg() seems to read the message data from the wrong
offset in this case.
Signed-off-by: Roland Dreier <roland@digitalvampire.org>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michael Ellerman [Fri, 14 Sep 2007 05:33:13 +0000 (15:33 +1000)]
PCI: Fix incorrect argument order to list_add_tail() in PCI dynamic ID code
The code for dynamically assigning new ids to PCI drivers,
store_new_id(), calls list_add_tail() with the list head and new node
arguments in reversed order.
The result is that every new id written essentially overwrites the
previous list of ids.
Caught with the help of Rusty's "horribly bad" list_node patch:
http://lkml.org/lkml/2007/6/10/10
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Juha Laiho [Thu, 13 Sep 2007 18:21:34 +0000 (21:21 +0300)]
PCI: i386: Compaq EVO N800c needs PCI bus renumbering
Force PCI bus renumbering for Compaq EVO N800c laptop, in order to get
the cardbus slot recognised.
Signed-off-by: Juha Laiho <Juha.Laiho@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michael Ellerman [Thu, 20 Sep 2007 02:48:23 +0000 (12:48 +1000)]
PCI: Remove no longer correct documentation regarding MSI vector assignment
The MSI vector reservation system described in Documentation/MSI-HOWTO.txt
was removed by Eric in
92db6d10bc1bc43330a4c540fa5b64c83d9d865f. Remove
the references to it in the documentation.
While we're here § 5.5.1 refers to x86 hardware requirements, so make that
clear.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Johannes Goecke [Mon, 10 Sep 2007 08:46:52 +0000 (10:46 +0200)]
PCI: re-enable onboard sound on "MSI K8T Neo2-FIR"
On the "MSI K8T Neo2-FIR" board the BIOS disables the onboard
soundcard, if a second PCI soundcard is present.
This patch sets the korrect register bit to enable the onboard sound.
Removed old code in /drivers/pci/quirks.c that only checks for the
PCI-ID and fires on any Board with VIA 8237.
New code in /arch/i386/pci/fixup.c checks the DMI-tables and only runs
on the specific board.
Signed-off-by: Johannes Goecke <goecke@upb.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Auke Kok [Mon, 27 Aug 2007 23:18:10 +0000 (16:18 -0700)]
PCI: quirk_vt82c586_acpi: Omit reading PCI revision ID
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Auke Kok [Mon, 27 Aug 2007 23:17:47 +0000 (16:17 -0700)]
PCI: quirk amd_8131_mmrbc: Omit reading pci revision ID
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Cc: Peter Oruba <peter.oruba@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Auke Kok [Mon, 27 Aug 2007 23:17:38 +0000 (16:17 -0700)]
cpqphp: Use PCI_CLASS_REVISION instead of PCI_REVISION_ID for read
While PCI_CLASS_REVISION and PCI_REVISION_ID are identical, the
code here discards the revision content and is only interested in
the class number.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Cc: Krosten Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alex Chiang [Tue, 21 Aug 2007 23:49:07 +0000 (17:49 -0600)]
PCI: Add missing PCI capability IDs
These IDs are in pciutils, but haven't been added to the kernel
yet.
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Thomas Backlund [Fri, 10 Aug 2007 21:42:15 +0000 (14:42 -0700)]
i386: add support for picopower irq router
Add support for PicoPower PT86C523 IRQ router to be used with the in-kernel
yenta driver for CardBus. With this patch cardbus works on e.g. Dell
Latitude XPi P150CD.
Initial patch for kernel 2.4 series by Sune Mølgaard
http://molgaard.org/code/linux-2.4.31-picopower.patch
Ported to 2.6.20 by Chmouel Boudjnah (http://www.chmouel.com)
Testing and confirmation that it works by Austin Acton
Cleaned up a little for inclusion in a 2.6.21-rc7 based kernel.
Added some more cleanups according to CodingStyle, as noted by
Randy Dunlap on LKML.
[akpm@linux-foundation.org: build fixes]
Signed-off-by: Thomas Backlund <tmb@mandriva.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Denis V. Lunev [Tue, 7 Aug 2007 09:13:18 +0000 (13:13 +0400)]
PCI: pci_get_device call from interrupt in reboot fixups
The following calltrace is possible now:
handle_sysrq
machine_emergency_restart
mach_reboot_fixups
pci_get_device
pci_get_subsys
down_read
The patch skips reboot fixup if called from sysrq-B code.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Fri, 10 Aug 2007 20:10:27 +0000 (13:10 -0700)]
dma_free_coherent() needs irqs enabled (sigh)
On at least ARM (and I'm told MIPS too) dma_free_coherent() has a newish
call context requirement: unlike its dma_alloc_coherent() sibling, it may
not be called with IRQs disabled. (This was new behavior on ARM as of late
2005, caused by ARM SMP updates.) This little surprise can be annoyingly
driver-visible.
Since it looks like that restriction won't be removed, this patch changes
the definition of the API to include that requirement. Also, to help catch
nonportable drivers, it updates the x86 and swiotlb versions to include the
relevant warnings. (I already observed that it trips on the
bus_reset_tasklet of the new firewire_ohci driver.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Miller <davem@davemloft.net>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Christoph Hellwig [Tue, 14 Aug 2007 23:17:15 +0000 (16:17 -0700)]
pci: hotplug: cpqphp: convert to kthread infrastructure
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kristen Carlson Accardi [Tue, 14 Aug 2007 23:07:00 +0000 (16:07 -0700)]
pci: hotplug: ibmphp: convert to kthread
Convert ibmphp to new kthread api
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
vignesh babu [Mon, 13 Aug 2007 12:53:14 +0000 (18:23 +0530)]
PCI: is_power_of_2 in drivers/pci/pci.c
Replacing n & (n - 1) for power of 2 check by is_power_of_2(n)
Signed-off-by: vignesh babu <vignesh.babu@wipro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kenji Kaneshige [Thu, 9 Aug 2007 23:09:38 +0000 (16:09 -0700)]
pciehp: minor cleanups for pciehp_hpc.c
Minor cleanups for pciehp_hpc.c. The 80 column rules, removing
unnecessary lines, and so on.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kenji Kaneshige [Thu, 9 Aug 2007 23:09:37 +0000 (16:09 -0700)]
pciehp: remove trailing whitespace form pciehp_pci.c
Remove trailing whitespaces from pciehp_pci.c.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kenji Kaneshige [Thu, 9 Aug 2007 23:09:36 +0000 (16:09 -0700)]
pciehp: remove trailing whitespace from pciehp_ctrl.c
Remove trailing whitespaces from pciehp_ctrl.c.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kenji Kaneshige [Thu, 9 Aug 2007 23:09:35 +0000 (16:09 -0700)]
pciehp: remove trailing whitespace from pciehp_core.c
Remove trailing whitespaces from pciehp_core.c.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kenji Kaneshige [Thu, 9 Aug 2007 23:09:34 +0000 (16:09 -0700)]
pciehp: remove trailing whitespace from pciehp_hpc.c
Remove trailing whitespaces from pciehp_hpc.c.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kenji Kaneshige [Thu, 9 Aug 2007 23:09:33 +0000 (16:09 -0700)]
pciehp: remove DBG_XXX_ROUTINE
This patch removes DBG_ENTER_ROUTIN, DBG_LEAVE_ROUTINE and related
code, which seem no longer needed.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kristen Carlson Accardi [Thu, 9 Aug 2007 23:09:32 +0000 (16:09 -0700)]
PCI Hotplug: pciehp: Request control over PCI Express Capability as well as Native hotplug
According to the PCI firmware spec (3.0), the OS must claim control
over the PCI Express Capability bits in addition to the PCI Express
Native Hot Plug feature when executing _OSC.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kristen Carlson Accardi [Thu, 9 Aug 2007 23:09:31 +0000 (16:09 -0700)]
PCI Hotplug: pciehp: Dont check bridge control on remove
When removing a device with a bridge on it, only read the
bridge control register if the adapter is actually present.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kenji Kaneshige [Thu, 9 Aug 2007 23:09:30 +0000 (16:09 -0700)]
pciehp: remove CONFIG_HOTPLUG_PCI_PCIE_POLL_EVENT_MODE
Remove unnecessary CONFIG_HOTPLUG_PCI_PCIE_EVENT_MODE.
The CONFIG_HOTPLUG_PCI_PCIE_POLL_EVENT_MODE option is not needed
because polling mechanism can be enabled through 'pciehp_poll_mode'
module option.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mariusz Kozlowski [Tue, 31 Jul 2007 17:14:28 +0000 (19:14 +0200)]
PCI Hotplug: cpqphp_ctrl.c: kmalloc + memset conversion to kzalloc
drivers/pci/hotplug/cpqphp_ctrl.c | 79698 -> 79638 (-60 bytes)
drivers/pci/hotplug/cpqphp_ctrl.o | 192896 -> 192736 (-160 bytes)
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Linus Torvalds [Fri, 12 Oct 2007 22:02:45 +0000 (15:02 -0700)]
Merge branch 'hysdn' of /linux/kernel/git/jgarzik/misc-2.6
* 'hysdn' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
[ISDN] hysdn: convert to PCI hotplug API
Linus Torvalds [Fri, 12 Oct 2007 22:01:16 +0000 (15:01 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
mmc: use correct unregister function for led trigger
Alan Stern [Thu, 11 Oct 2007 20:47:36 +0000 (16:47 -0400)]
USB: fix race in autosuspend reschedule
This patch (as1002) fixes a small race which can occur when a driver
expects usbcore to reschedule an autosuspend request. If the request
arrives too late, it won't be rescheduled. The patch adds an extra
argument to autosuspend_check(), indicating that a reschedule is
needed no matter how much time has elapsed.
It also tries to avoid letting asynchronous changes to the value of
jiffies cause a delay to become negative, by caching a local copy of
the current time.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Haavard Skinnemoen [Thu, 11 Oct 2007 20:40:30 +0000 (13:40 -0700)]
atmel_usba_udc: Keep track of the device status
Keep track of the device status (as returned by the GET_STATUS
request) and allow it to be manipulated by set_selfpowered() as
well as SET_FEATURE/CLEAR_FEATURE (for remote wakeup)
Implement the wakeup() op, which refuses to do anything if the
DEVICE_REMOTE_WAKEUP feature wasn't set by the host. Now this
driver passes USBCV (at least, with gadget zero).
Fix one more locking bug; lockdep is every developer's friend.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ortwin Glück [Thu, 11 Oct 2007 15:29:43 +0000 (17:29 +0200)]
USB: Nikon D40X unusual_devs entry
Not surprisingly the Nikon D40X DSC needs the same quirks as the D40,
but it has a separate ID.
See http://bugs.gentoo.org/show_bug.cgi?id=191431
From: Ortwin Glück <odi@odi.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 10 Oct 2007 20:24:06 +0000 (16:24 -0400)]
USB: serial core should respect driver requirements
This patch (as997) fixes a bug in the USB serial core. The core needs
to pay attention to drivers' requirements regarding the number and
type of endpoints a device has.
At the same time, the patch changes the NUM_DONT_CARE constant (which
is stored in a single-byte field) from -1 to a safer, unsigned value.
It also improves the kerneldoc for several fields in the
usb_serial_driver structure.
Finally, the patch replaces a list_for_each() with list_for_each_entry().
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 10 Oct 2007 20:24:56 +0000 (16:24 -0400)]
USB: documentation for USB power management
This patch (as998) adds documentation on how USB power management
works and how to use it.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 10 Oct 2007 20:30:12 +0000 (16:30 -0400)]
USB: skip autosuspended devices during system resume
System suspends and hibernation are supposed to be as transparent as
possible. By this reasoning, if a USB device is already autosuspended
before the system sleep begins then it should remain autosuspended
after the system wakes up.
This patch (as1001) adds a skip_sys_resume flag to the usb_device
structure and uses it to avoid waking up devices which were suspended
when a system sleep began.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 10 Oct 2007 20:27:07 +0000 (16:27 -0400)]
USB: mutual exclusion for EHCI init and port resets
This patch (as999) fixes a problem that sometimes shows up when host
controller driver modules are loaded in the wrong order. If ehci-hcd
happens to initialize an EHCI controller while the companion OHCI or
UHCI controller is in the middle of a port reset, the reset can fail
and the companion may get very confused. The patch adds an
rw-semaphore and uses it to keep EHCI initialization and port resets
mutually exclusive.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <david-b@pacbell.net>
Cc: David Miller <davem@davemloft.net>
Cc: Dely L Sy <dely.l.sy@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Richard Sharpe [Wed, 10 Oct 2007 17:56:28 +0000 (10:56 -0700)]
USB: allow usbstorage to have LUNS greater than 2Tb
Attached is a very small patch (several comment lines) and a one-line
coded change) that allows for USB storage devices that are larger than
2TB.
At the company where I work we need such support, and one of my
co-workers, Jane Liu, pointed out that SCSI low-layer drivers need to
specify what size CDBs they accept. After looking through the code it
became obvious that the current USB Storage code accepted the default of
12-byte CDBs, so I changed it to accept 16-byte CDBs. This allows our
device to work.
Signed-off-by: Richard Sharpe <rsharpe@richardsharpe.com>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Nobuhiro Iwamatsu [Wed, 10 Oct 2007 15:37:50 +0000 (00:37 +0900)]
USB: Adding support for SHARP WS011SH to ipaq.c
This patch supports for SHARP WS011SH[0] to ipaq.c
[0]: http://www.willcom-inc.com/ja/lineup/ws/011sh/index.html
(Sorry , Japanese only.)
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Haavard Skinnemoen [Wed, 10 Oct 2007 09:29:43 +0000 (02:29 -0700)]
USB: add atmel_usba_udc driver
This is a driver for the Atmel USBA UDC which can be found integrated
on AT32AP700x AVR32 processors. For hardware documentation, please see
the AT32AP7000 data sheet:
http://www.atmel.com/dyn/resources/prod_documents/doc32003.pdf
This is a dual speed controller (connects at high or full speed).
The driver supports up to 7 control, bulk, interrupt and isochronous
endpoints with some constraints. Bulk, interrupt and isochronous
transfers are driven by DMA.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michael Buesch [Wed, 10 Oct 2007 06:47:17 +0000 (23:47 -0700)]
USB: ohci SSB bus glue
This adds SSB bus glue for the USB OHCI HCD.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Wed, 10 Oct 2007 05:04:16 +0000 (22:04 -0700)]
USB: ehci build fixes on au1xxx, ppc-soc
Cleanup: references to two PM routines (and HCD entry points)
that no longer exist are swapped with their replacements.
Evidently au1xxx and ppc-soc EHCI support doesn't get compiled
with power management very much, or these build bugs would have
been patched long ago.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Valentine Barshak [Tue, 9 Oct 2007 22:00:05 +0000 (15:00 -0700)]
USB: add runtime frame_no quirk for big-endian OHCI
Add OHCI big endian frame_no quirk. The frame_no value stored in the
HCCA is a 16 bit field at a specific offset, but since not all CPUs can
do 16-bit memory accesses it's used as a 32 bit field. And that's why
big-endian OHCI must shift 16 bits ... unless the spec is not followed.
Currently there's one MPC52xx platform that doesn't need the shift. This
patch adds a new "big endian frame_no" quirk to control that at runtime.
Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Acked-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Wed, 26 Sep 2007 22:22:36 +0000 (23:22 +0100)]
USB: funsoft: Fix termios
Funsoft has a bogus ioctl handler doing bogus termios handling in a bogus
manner. Fortunately we can simply delete all the bogus bits and get the
right default behaviour !
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Wed, 26 Sep 2007 22:34:18 +0000 (23:34 +0100)]
USB: visor: termios bits
Visor has a huge complex routine which displays termios bits for debug
but doesn't do anything. Get the correct behaviour by removing it all
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Fri, 5 Oct 2007 18:43:00 +0000 (14:43 -0400)]
USB: unusual_devs entry for Nikon DSC D2Xs
This patch (as996) adds an unusual_devs entry for the Nikon DSC D2Xs
camera.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Phil Dibowitz <phil@ipom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Fri, 5 Oct 2007 01:06:16 +0000 (18:06 -0700)]
USB: re-remove <linux/usb_sl811.h>
Remove <linux/usb_sl811.h> ... somehow this was recreated when
the Blackfin arch was merged, instead of using <linux/usb/sl811.h>
which is the correct header.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Fri, 5 Oct 2007 01:05:17 +0000 (18:05 -0700)]
USB: move <linux/usb_gadget.h> to <linux/usb/gadget.h>
Move <linux/usb_gadget.h> to <linux/usb/gadget.h>, reducing
some of the clutter in the main include directory.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sarah Sharp [Wed, 3 Oct 2007 21:56:03 +0000 (14:56 -0700)]
USB: Export URB statistics for powertop
powertop currently tracks interrupts generated by uhci, ehci, and ohci,
but it has no way of telling which USB device to blame USB bus activity on.
This patch exports the number of URBs that are submitted for a given device.
Cat the file 'urbnum' in /sys/bus/usb/devices/.../
Signed-off-by: Sarah Sharp <sarah.a.sharp@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / log