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We had been doing an automatic full eviction of the L1 I$
everywhere whenever we did a kernel-space TLB flush. It turns
out this isn't necessary, since all the callers already handle
doing a flush if necessary.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This enables support for "kexec --initrd" for tile.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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With this change, tile Linux now supports address-space layout
randomization for shared objects, stack, heap and vdso.
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Tony Lu <zlu@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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The r1 value is set based on the r0 value as we return to user space.
So tracing tools won't automatically see the right value. Fix this by
generating the correct r1 value in do_syscall_trace_exit() rather
than trying to tamper with the hot path in syscall return.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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The "available_irqs" value needs to actually reflect the IRQs
available, not just start as an all-ones mask, since we only
have 32 IRQs available even on a 64-bit platform.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This may fix a reported bug where an R_TILEGX_64 in a module was not
pointing to an aligned address.
Reported-by: Simon Marchi <simon.marchi@polymtl.ca>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This change includes support for Kprobes, Jprobes and Return Probes.
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Tony Lu <zlu@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Signed-off-by: Bard Liao <bardliao@realtek.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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We need to make sure that the control's cached value is initialized to the same
value as the control's widget->on_val. Otherwise updates might be lost.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
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lp872x regulator driver can be built a module after commit 631a1fc
"regulator: build: Allow most regulators to be built as modules".
Make REGULATOR_LP872X depend on I2C to allow building lp872x module when I2C=m.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Below is the equation in original code:
tps65217_uv1_ranges:
0 ... 24: uV = vsel * 25000 + 900000;
25 ... 52: uV = (vsel - 24) * 50000 + 1500000;
= (vsel - 25) * 50000 + 1550000;
53 ... 55: uV = (vsel - 52) * 100000 + 2900000;
= (vsel - 53) * 100000 + 3000000;
56 ... 62: uV = 3300000;
tps65217_uv2_ranges:
0 ... 8: uV = vsel * 50000 + 1500000;
9 ... 13: uV = (vsel - 8) * 100000 + 1900000;
= (vsel - 9) * 100000 + 2000000;
14 ... 31: uV = (vsel - 13) * 50000 + 2400000;
= (vsel - 14) * 50000 + 2450000;
The voltage tables are composed of linear ranges.
This patch converts this driver to use multiple linear ranges APIs.
In original code, voltage range for DCDC1 is 900000 ~ 1800000 and voltage range
for DCDC3 is 900000 ~ 1500000. This patch separates the range 25~52 in
tps65217_uv1_ranges table to two linear ranges: 25~30 and 31~52.
This change makes it possible to reuse the same linear_ranges table for DCDCx.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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regulator_register() does not return NULL, it returns ERR_PTR on error.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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All the current limit tables have the values in ascend order.
So we can slightly optimize the for loop iteration because the first match
is the minimal value.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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This commit adds support for static ftrace, graph function support,
and dynamic tracer support.
Signed-off-by: Tony Lu <zlu@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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The Versatile Express TC2 board, which we use as our main emulated
platform in QEMU, defines 160+32 == 192 interrupts, so limiting the
number of interrupts to 128 is not quite going to cut it for real board
emulation.
Note that this didn't use to be a problem because QEMU was buggy and
only defined 128 interrupts until recently.
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
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For bytemaps each IRQ field is 1 byte wide, so we pack 4 irq fields in
one word and since there are 32 private (per cpu) irqs, we have 8
private u32 fields on the vgic_bytemap struct. We shift the offset from
the base of the register group right by 2, giving us the word index
instead of the field index. But then there are 8 private words, not 4,
which is also why we subtract 8 words from the offset of the shared
words.
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
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All the code in handle_mmio_cfg_reg() assumes the offset has
been shifted right to accomodate for the 2:1 bit compression,
but this is only done when getting the register address.
Shift the offset early so the code works mostly unchanged.
Reported-by: Zhaobo (Bob, ERC) <zhaobo@huawei.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
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vgic_get_target_reg is quite complicated, for no good reason.
Actually, it is fairly easy to write it in a much more efficient
way by using the target CPU array instead of the bitmap.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
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The call to del_evtchn() frees "evtchn".
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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When a foreign mapper attempts to map guest frames that are paged out,
the mapper receives an ENOENT response and will have to try again
while a helper process pages the target frame back in.
Gating checks on PRIVCMD_MMAPBATCH* ioctl args were preventing retries
of mapping calls.
Permit subsequent calls to update a sub-range of the VMA, iff nothing
is yet mapped in that range.
Since it is now valid to call PRIVCMD_MMAPBATCH* multiple times, only
set vma->vm_private_data if the parameters are valid and (if
necessary) the pages for the auto_translated_physmap case have been
allocated. This prevents subsequent calls from incorrectly entering
the 'retry' path when there are no pages allocated etc.
Signed-off-by: Andres Lagar-Cavilla <andres@lagarcavilla.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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* 'kvm-ppc-next' of git://github.com/agraf/linux-2.6:
KVM: PPC: Book3S PR: Rework kvmppc_mmu_book3s_64_xlate()
KVM: PPC: Book3S PR: Make instruction fetch fallback work for system calls
KVM: PPC: Book3S PR: Don't corrupt guest state when kernel uses VMX
KVM: PPC: Book3S: Fix compile error in XICS emulation
KVM: PPC: Book3S PR: return appropriate error when allocation fails
arch: powerpc: kvm: add signed type cast for comparation
powerpc/kvm: Copy the pvr value after memset
KVM: PPC: Book3S PR: Load up SPRG3 register with guest value on guest entry
kvm/ppc/booke: Don't call kvm_guest_enter twice
kvm/ppc: Call trace_hardirqs_on before entry
KVM: PPC: Book3S HV: Allow negative offsets to real-mode hcall handlers
KVM: PPC: Book3S HV: Correct tlbie usage
powerpc/kvm: Use 256K chunk to track both RMA and hash page table allocation.
powerpc/kvm: Contiguous memory allocator based RMA allocation
powerpc/kvm: Contiguous memory allocator based hash page table allocation
KVM: PPC: Book3S: Ignore DABR register
mm/cma: Move dma contiguous changes into a seperate config
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* pm-cpufreq:
cpufreq: Don't use smp_processor_id() in preemptible context
cpufreq: governor: Fix typos in comments
cpufreq: governors: Remove duplicate check of target freq in supported range
cpufreq: Fix timer/workqueue corruption due to double queueing
cpufreq: imx6q: Fix clock enable balance
cpufreq: tegra: fix the wrong clock name
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* pm-cpuidle:
cpuidle: coupled: fix race condition between pokes and safe state
cpuidle: coupled: abort idle if pokes are pending
cpuidle: coupled: disable interrupts after entering safe state
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* acpi-hotplug:
ACPI / hotplug: Remove containers synchronously
driver core / ACPI: Avoid device hot remove locking issues
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* acpi-assorted:
ACPI / EC: Add ASUSTEK L4R to quirk list in order to validate ECDT
ACPI / thermal: Add check of "_TZD" availability and evaluating result
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The polarities were being set to active low when fbdev was requesting active
high. This patch reverses it so that what is set into the LCD controller is
correct.
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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TI LCD controller version 2 adds some extra bits in a register to
increase the available size to represent horizontal timings. This
patch allows the fbdev driver to utilize those extra bits.
This will become important for driving an HDMI encoder from the lcd
controller where some of the VESA/CEA modes require quite large porches.
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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The LCD controller represents some of the timing fields with a 0
in the register representing 1. This was not taken into account
when these registers were being set. Interestingly enough not
all of the LCDC controller timing registers implement this representation
so carefully went through the technical reference manual to only "fix"
the correct timings.
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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The driver was mapping the wrong fbdev margins to the
front porch / back porch for both vertical and horizontal
timings.
This patch corrects it so that:
hfp = right margin
hbp = left margin
vbp = upper margin
vfp = lower margin
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v3.12
A few more updates for v3.12, mostly small cleanups plus the addition of
the DT bindings for kirkwood and the new i.MX S/PDIF driver.
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SND_SOC_FSL_UTILS is only used by PowerPC machines, so let's drop it in the
i.mx case.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Use devm_ioremap_resource instead of devm_request_and_ioremap.
This was done using the semantic patch
scripts/coccinelle/api/devm_ioremap_resource.cocci
The initialization of drvdata->regs_phys was manually moved lower, to take
advantage of the NULL test on res performed by devm_ioremap_resource.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Just a cosmetic thing to bring that file in line with others in the
tree.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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fb_set_cmap() already checks the parameters, so need remove the
redundancy checking.
This redundancy checking is also incorrect, the related warning:
drivers/video/fbcmap.c:288:2: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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The valid offset range should be 0 ... chip->ngpio - 1.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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I forgot to drop the lock for the return inside the loop
protected by the spinlock in the pin config routine when
merging in -rc7 in commit 6ad30ce046aefbdc3848232c665a728860d7bb68
Reported-by: Sherman Yin <syin@broadcom.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.
Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@
- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
e = devm_ioremap_resource(e1, res);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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This was found by Alexandra Kossovsky, who noted this traceback from
kmemleak:
> unreferenced object 0xffff880216fcfe00 (size 512):
> comm "swapper/0", pid 1, jiffies 4294895429 (age 1415.320s)
> hex dump (first 32 bytes):
> 00 00 00 00 00 00 00 00 aa aa aa aa aa aa aa aa ................
> 55 55 55 55 55 55 55 55 ff ff ff ff ff ff ff ff UUUUUUUU........
> backtrace:
> [<ffffffff813e415c>] kmemleak_alloc+0x21/0x3e
> [<ffffffff8111c17f>]
> kmemleak_alloc_recursive.constprop.57+0x16/0x18
> [<ffffffff8111e63b>] __kmalloc+0xf9/0x144
> [<ffffffff8123d9cf>] fb_alloc_cmap_gfp+0x47/0xe1
> [<ffffffff8123da77>] fb_alloc_cmap+0xe/0x10
> [<ffffffff81aff40a>] efifb_probe+0x3e9/0x48f
> [<ffffffff812c566f>] platform_drv_probe+0x34/0x5e
> [<ffffffff812c3e6d>] driver_probe_device+0x98/0x1b4
> [<ffffffff812c3fd7>] __driver_attach+0x4e/0x6f
> [<ffffffff812c25bf>] bus_for_each_dev+0x57/0x8a
> [<ffffffff812c3984>] driver_attach+0x19/0x1b
> [<ffffffff812c362b>] bus_add_driver+0xde/0x201
> [<ffffffff812c453f>] driver_register+0x8c/0x110
> [<ffffffff812c510d>] platform_driver_register+0x41/0x43
> [<ffffffff812c5127>] platform_driver_probe+0x18/0x8a
> [<ffffffff81aff002>] efifb_init+0x276/0x295
Signed-off-by: Peter Jones <pjones@redhat.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to
avoid common clk framework warnings.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Ensure that the definitions of functions match the prototypes used by
other modules by including the header with the prototypes in the files
with the definitions.
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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The bitmap used to mark dma mappings can be quite large on systems
with huge amounts of memory. Use virtual memory for this bitmap.
Suggested-by: Alexander Schmidt <alexschm@de.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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