linux.git/arch/alpha/kernel, branch v3.17

alpha: Wire up sched_setattr, sched_getattr, and renameat2 syscalls.

2014-08-29T18:18:45+00:00

Signed-off-by: Michael Cree 
Signed-off-by: Matt Turner 
Signed-off-by: Linus Torvalds

alpha/PCI: Use default pcibios_enable_device()

2014-03-19T21:00:14+00:00

We don't need anything arch-specific in pcibios_enable_device(), so drop
the arch implementation and use the default generic one.

Signed-off-by: Bjorn Helgaas 
CC: linux-alpha@vger.kernel.org

alpha: Enable system-call auditing support.

2014-01-31T17:21:55+00:00

Signed-off-by: Zhenglong.cai 
Signed-off-by: Matt Turner

Merge branch 'pci/resource' into next

2014-01-10T21:23:15+00:00

* pci/resource:
  PCI: Allocate 64-bit BARs above 4G when possible
  PCI: Enforce bus address limits in resource allocation
  PCI: Split out bridge window override of minimum allocation address
  agp/ati: Use PCI_COMMAND instead of hard-coded 4
  agp/intel: Use CPU physical address, not bus address, for ioremap()
  agp/intel: Use pci_bus_address() to get GTTADR bus address
  agp/intel: Use pci_bus_address() to get MMADR bus address
  agp/intel: Support 64-bit GMADR
  agp/intel: Rename gtt_bus_addr to gtt_phys_addr
  drm/i915: Rename gtt_bus_addr to gtt_phys_addr
  agp: Use pci_resource_start() to get CPU physical address for BAR
  agp: Support 64-bit APBASE
  PCI: Add pci_bus_address() to get bus address of a BAR
  PCI: Convert pcibios_resource_to_bus() to take a pci_bus, not a pci_dev
  PCI: Change pci_bus_region addresses to dma_addr_t

PCI: Convert pcibios_resource_to_bus() to take a pci_bus, not a pci_dev

2013-12-21T17:06:10+00:00

These interfaces:

  pcibios_resource_to_bus(struct pci_dev *dev, *bus_region, *resource)
  pcibios_bus_to_resource(struct pci_dev *dev, *resource, *bus_region)

took a pci_dev, but they really depend only on the pci_bus.  And we want to
use them in resource allocation paths where we have the bus but not a
device, so this patch converts them to take the pci_bus instead of the
pci_dev:

  pcibios_resource_to_bus(struct pci_bus *bus, *bus_region, *resource)
  pcibios_bus_to_resource(struct pci_bus *bus, *resource, *bus_region)

In fact, with standard PCI-PCI bridges, they only depend on the host
bridge, because that's the only place address translation occurs, but
we aren't going that far yet.

[bhelgaas: changelog]
Signed-off-by: Yinghai Lu 
Signed-off-by: Bjorn Helgaas

alpha/PCI: Use dev_is_pci() to identify PCI devices

2013-12-11T23:53:19+00:00

Use dev_is_pci() instead of checking bus type directly.

Signed-off-by: Yijing Wang 
Signed-off-by: Bjorn Helgaas

alpha: perf: fix out-of-bounds array access triggered from raw event

2013-11-17T00:37:10+00:00

Vince's perf fuzzer uncovered the following issue on Alpha:

Unable to handle kernel paging request at virtual address fffffbfe4e46a0e8
CPU 0 perf_fuzzer(1278): Oops 0
pc = []  ra = []  ps = 0007    Not tainted
pc is at alpha_perf_event_set_period+0x60/0xf0
ra is at alpha_pmu_enable+0x1a4/0x1c0
v0 = 0000000000000000  t0 = 00000000000fffff  t1 = fffffc007b3f5800
t2 = fffffbff275faa94  t3 = ffffffffc9b9bd89  t4 = fffffbfe4e46a098
t5 = 0000000000000020  t6 = fffffbfe4e46a0b8  t7 = fffffc007f4c8000
s0 = 0000000000000000  s1 = fffffc0001b0c018  s2 = fffffc0001b0c020
s3 = fffffc007b3f5800  s4 = 0000000000000001  s5 = ffffffffc9b9bd85
s6 = 0000000000000001
a0 = 0000000000000006  a1 = fffffc007b3f5908  a2 = fffffbfe4e46a098
a3 = 00000005000108c0  a4 = 0000000000000000  a5 = 0000000000000000
t8 = 0000000000000001  t9 = 0000000000000001  t10= 0000000027829f6f
t11= 0000000000000020  pv = fffffc000031fb60  at = fffffc0000950900
gp = fffffc0000940900  sp = fffffc007f4cbca8
Disabling lock debugging due to kernel taint
Trace:
[] alpha_pmu_enable+0x1a4/0x1c0
[] perf_pmu_enable+0x48/0x60
[] __perf_install_in_context+0x15c/0x230
[] remote_function+0x80/0xa0
[] __perf_install_in_context+0x0/0x230
[] smp_call_function_single+0x1b4/0x1d0
[] task_function_call+0x60/0x80
[] __perf_install_in_context+0x0/0x230
[] task_function_call+0x34/0x80
[] perf_install_in_context+0x9c/0x150
[] __perf_install_in_context+0x0/0x230
[] SYSC_perf_event_open+0x360/0xac0
[] entSys+0xa4/0xc0

This is due to the raw event encoding being used as an index directly
into the ev67_mapping array, rather than being validated against the
ev67_pmc_event_type enumeration instead. Unlike other architectures,
which allow raw events to propagate into the hardware counters with
little interference, the limited number of events on Alpha and the
strict event <-> counter relationships mean that raw events actually
correspond to the Linux-specific Alpha events, rather than anything
defined by the architecture.

This patch adds a new callback to alpha_pmu_t for validating the raw
event encoding with the Linux event types for the PMU, preventing the
out-of-bounds array access.

Cc: Peter Zijlstra 
Acked-by: Michael Cree 
Acked-by: Matt Turner 
Signed-off-by: Will Deacon

alpha: Use qemu+cserve provided high-res clock and alarm.

2013-11-17T00:33:21+00:00

QEMU provides a high-resolution timer and alarm; use this for
a clock source and clock event source when available.

Signed-off-by: Richard Henderson

alpha: Switch to GENERIC_CLOCKEVENTS

2013-11-17T00:33:19+00:00

This allows us to get rid of some hacky code for SMP.  Get rid of
some cycle counter hackery that's now handled by generic code via
clocksource + clock_event_device objects.

Signed-off-by: Richard Henderson

alpha: Enable the rpcc clocksource for single processor

2013-11-17T00:33:18+00:00

Don't depend on SMP, just check the number of processors online.
This allows a single distribution kernel to use the clocksource
when run on a single processor machine.  Do depend on whether or
not we're using WTINT.

Signed-off-by: Richard Henderson