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This patch moves the char and block major number definitions
to major.h to be with the rest of the major numbers.
While doing this, include major.h in the files that need it.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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A new type of partition with magic FCTY was found on Huawei E970:
46 43 54 59 4b 51 37 4e 41 42 31 38 41 32 39 30 |FCTYKQ7NAB18A290|
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Most of the bcm47xx devices use TRX format for storing kernel and some
partition like Squashfs or JFFS2. This is pretty flexible solution, CFE
(the bootloader) just writes (and later boots) TRX at some hardcoded
place and paritions can vary in the size.
However some devices don't use TRX format. Very recently we have
discovered ZTE H218N that has kernel and rootfs partitions at some
"random" places.
This patch allows Linux find a rootfs partition after installing custom
image with a CFE bootloader.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Handle return NULL in malloc.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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devm_kzalloc is device managed and simplifies the code.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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module_platform_driver simplifies the code by removing boiler plate.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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module_platform_driver simplifies the code by removing boiler
plate.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Some bright specification writers decided to write this in the ONFI spec
(from ONFI 3.0, Section 3.1):
"The number of blocks and number of pages per block is not required to
be a power of two. In the case where one of these values is not a
power of two, the corresponding address shall be rounded to an
integral number of bits such that it addresses a range up to the
subsequent power of two value. The host shall not access upper
addresses in a range that is shown as not supported."
This breaks every assumption MTD makes about NAND block/chip-size
dimensions -- they *must* be a power of two!
And of course, an enterprising manufacturer has made use of this lovely
freedom. Exhibit A: Micron MT29F32G08CBADAWP
"- Plane size: 2 planes x 1064 blocks per plane
- Device size: 32Gb: 2128 blockss [sic]"
This quickly hits a BUG() in nand_base.c, since the extra dimensions
overflow so we think it's a second chip (on my single-chip setup):
ONFI param page 0 valid
ONFI flash detected
NAND device: Manufacturer ID: 0x2c, Chip ID: 0x44 (Micron MT29F32G08CBADAWP), 4256MiB, page size: 8192, OOB size: 744
------------[ cut here ]------------
kernel BUG at drivers/mtd/nand/nand_base.c:203!
Internal error: Oops - BUG: 0 [#1] SMP ARM
[... trim ...]
[<c02cf3e4>] (nand_select_chip+0x18/0x2c) from [<c02d25c0>] (nand_do_read_ops+0x90/0x424)
[<c02d25c0>] (nand_do_read_ops+0x90/0x424) from [<c02d2dd8>] (nand_read+0x54/0x78)
[<c02d2dd8>] (nand_read+0x54/0x78) from [<c02ad2c8>] (mtd_read+0x84/0xbc)
[<c02ad2c8>] (mtd_read+0x84/0xbc) from [<c02d4b28>] (scan_read.clone.4+0x4c/0x64)
[<c02d4b28>] (scan_read.clone.4+0x4c/0x64) from [<c02d4c88>] (search_bbt+0x148/0x290)
[<c02d4c88>] (search_bbt+0x148/0x290) from [<c02d4ea4>] (nand_scan_bbt+0xd4/0x5c0)
[... trim ...]
---[ end trace 0c9363860d865ff2 ]---
So to fix this, just truncate these dimensions down to the greatest
power-of-2 dimension that is less than or equal to the specified
dimension.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: <stable@vger.kernel.org>
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This commit replaces the currently hardcoded buffer size, by a
dynamic detection scheme. First a small 256 bytes buffer is allocated
so the device can be detected (using READID and friends commands).
After detection, this buffer is released and a new buffer is allocated
to acommodate the page size plus out-of-band size.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Instead of setting info->dma each time a command is prepared,
we can move it after the DMA buffers are allocated.
This is more clear and it's the proper place to enable this, given
DMA cannot be turned on and off during runtime.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Micron N25Q512A is a spi flash memory with following features:
-64MB size, 1.8V, Mulitple I/O, 4KB Sector erase memory.
-Memory is organised as 1024(64KB) main sectors.
-Each sector is divided into 256 pages.
-Register set/Opcodes are similar to other N25Q family products.
Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Use free_bch() instead of kfree() to free init_bch()
allocated data.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The loop that polls the status register waiting for an operation to complete
foolishly bases the timeout simply on the number of loop iterations that have
ocurred. When I increased the processor clock speed, timeouts started to appear
for long block erasure operations. This patch measures the timeout using
jiffies.
Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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dev_err is preferred to printk.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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devm_kzalloc is device managed and makes code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Driver core will set the driver data to NULL upon detach or
probe failure.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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module_platform_driver removes boiler plate code and makes it
simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Driver core will set the driver data to NULL upon detach or
probe failure.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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devm_kzalloc is device managed and makes code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Driver core will set the driver data to NULL upon detach
or probe failure.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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phram was 32-bit limited by design. Machines are growing up, but phram
module is still useful. Update it. The patch is bigger than minimum,
because simple_strtoul() is obsolete.
Tested on MIPS64 and compile-tested for PPC (32 bit).
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nsn.com>
Reviewed-by: Joern Engel <joern@logfs.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Just an unnecessary semicolon that should be removed...
Whitespace neatening of macro too.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use a more standard logging style.
Convert smsc_<level> macros to use netif_<level>.
Remove unused #define PFX
Add pr_fmt and neaten pr_<level> uses.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It's unused, remove it.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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BIOS on ASUS W5A laptop with ALC880 codec doesn't provide any pin
configurations, so we have to set up all pins manually.
Reported-and-tested-by: nb <nb@dagami.org>
Cc: <stable@vger.kernel.org> [v3.4+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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It's a superset of the existing CX2075x codecs, so we can reuse the
existing parser code.
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver update from Greg KH:
"Here's the big drivers/staging/ update for 3.13-rc1.
Nothing major here, just a _ton_ of fixes and cleanups, mostly driven
by the new round of OPW applicants, but also there are lots of other
people doing staging tree cleanups these days in order to help get the
drivers into mergable shape.
We also merge, and then revert, the ktap code, as Ingo and the other
perf/ftrace developers feel it should go into the "real" part of the
kernel with only a bit more work, so no need to put it in staging for
now.
All of this has been in linux-next for a while with no reported
issues"
* tag 'staging-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1045 commits)
staging: drm/imx: fix return value check in ipu_add_subdevice_pdata()
Staging: zram: Fix access of NULL pointer
Staging: zram: Fix variable dereferenced before check
Staging: rtl8187se: space prohibited before semicolon in r8185b_init.c
Staging: rtl8187se: fix space prohibited after that open parenthesis '(' in r8185b_init.c
Staging: rtl8187se: fix braces {} are not necessary for single statement blocks in r8185b_init.c
Staging: rtl8187se: fix trailing whitespace in r8185b_init.c
Staging: rtl8187se: fix please, no space before tabs in r8185b_init.c
drivers/staging/nvec/Kconfig: remove trailing whitespace
Staging: dwc2: Fix variable dereferenced before check
Staging: xgifb: fix braces {} are not necessary for any arm of this statement
staging: rtl8192e: remove unneeded semicolons
staging: rtl8192e: use true and false for bool variables
staging: ft1000: return values corrected in scram_start_dwnld
staging: ft1000: change values of status return variable in write_dpram32_and_check
staging: bcm: Remove unnecessary pointer casting
imx-drm: ipuv3-crtc: Invert IPU DI0 clock polarity
staging: r8188eu: Fix sparse warnings in rtl_p2p.c
staging: r8188eu: Fix sparse warnings in rtw_mlme_ext.c
staging: r8188eu: Fix sparse warnings in rtl8188e.cmd.c
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here's the big tty/serial driver update for 3.13-rc1.
There's some more minor n_tty work here, but nothing like previous
kernel releases. Also some new driver ids, driver updates for new
hardware, and other small things.
All of this has been in linux-next for a while with no issues"
* tag 'tty-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (84 commits)
serial: omap: fix missing comma
serial: sh-sci: Enable the driver on all ARM platforms
serial: mfd: Staticize local symbols
serial: omap: fix a few checkpatch warnings
serial: omap: improve RS-485 performance
mrst_max3110: fix unbalanced IRQ issue during resume
serial: omap: Add support for optional wake-up
serial: sirf: remove duplicate defines
tty: xuartps: Fix build error when COMMON_CLK is not set
tty: xuartps: Fix build error due to missing forward declaration
tty: xuartps: Fix "may be used uninitialized" build warning
serial: 8250_pci: add Pericom PCIe Serial board Support (12d8:7952/4/8) - Chip PI7C9X7952/4/8
tty: xuartps: Update copyright information
tty: xuartps: Implement suspend/resume callbacks
tty: xuartps: Dynamically adjust to input frequency changes
tty: xuartps: Updating set_baud_rate()
tty: xuartps: Force enable the UART in xuartps_console_write
tty: xuartps: support 64 byte FIFO size
tty: xuartps: Add polled mode support for xuartps
tty: xuartps: Implement BREAK detection, add SYSRQ support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core / sysfs patches from Greg KH:
"Here's the big driver core / sysfs update for 3.13-rc1.
There's lots of dev_groups updates for different subsystems, as they
all get slowly migrated over to the safe versions of the attribute
groups (removing userspace races with the creation of the sysfs
files.) Also in here are some kobject updates, devres expansions, and
the first round of Tejun's sysfs reworking to enable it to be used by
other subsystems as a backend for an in-kernel filesystem.
All of these have been in linux-next for a while with no reported
issues"
* tag 'driver-core-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (83 commits)
sysfs: rename sysfs_assoc_lock and explain what it's about
sysfs: use generic_file_llseek() for sysfs_file_operations
sysfs: return correct error code on unimplemented mmap()
mdio_bus: convert bus code to use dev_groups
device: Make dev_WARN/dev_WARN_ONCE print device as well as driver name
sysfs: separate out dup filename warning into a separate function
sysfs: move sysfs_hash_and_remove() to fs/sysfs/dir.c
sysfs: remove unused sysfs_get_dentry() prototype
sysfs: honor bin_attr.attr.ignore_lockdep
sysfs: merge sysfs_elem_bin_attr into sysfs_elem_attr
devres: restore zeroing behavior of devres_alloc()
sysfs: fix sysfs_write_file for bin file
input: gameport: convert bus code to use dev_groups
input: serio: remove bus usage of dev_attrs
input: serio: use DEVICE_ATTR_RO()
i2o: convert bus code to use dev_groups
memstick: convert bus code to use dev_groups
tifm: convert bus code to use dev_groups
virtio: convert bus code to use dev_groups
ipack: convert bus code to use dev_groups
...
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into drm-next
- A couple of fixes that never made it into fixes-3.12
- Make NO_EVICT bo's available for shrinkers when on delayed-delete list
- Allow retrying page-faults that need to wait for GPU.
* 'ttm-next-3.13' of git://people.freedesktop.org/~thomash/linux:
drm/ttm: Fix memory type compatibility check
drm/ttm: Fix ttm_bo_move_memcpy
drm/ttm: Handle in-memory region copies
drm/ttm: Make NO_EVICT bos available to shrinkers pending destruction
drm/ttm: Allow vm fault retries
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git://people.freedesktop.org/~thomash/linux into drm-next
Pull request for vmwgfx. Currently just the DMA address stuff.
* 'vmwgfx-next-3.13' of git://people.freedesktop.org/~thomash/linux:
drm/vmwgfx: Use the linux DMA api to get valid device addresses of pages
drm/ttm: Enable the dma page pool also for intel IOMMUs
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Tell the compiler that the inline assembler statement
references lguest_entry.
This fixes compile problems with LTO where the variable
and the assembler code may end up in different files.
Cc: x86@kernel.org
Cc: rusty@rustcorp.com.au
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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As virtio-mmio config registers are specified to be little-endian,
using readl() to read the magic value and then memcmp() to check it
fails on BE (as readl() has an implicit swab).
Fix it by encoding the magic value as an integer instead of a string.
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Andi's change in e0f244c63fc9 ("asmlinkage, module: Make ksymtab and
kcrctab symbols and __this_module __visible") make the crc appear
first in the symbol table.
modpost creates an entry when it sees the CRC, then when it sees the
actual symbol, it complains that it's seen it before. The preloaded
flag already exists for the equivalent case where we loaded from
Module.symvers, so use that.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Tested-by: The Awesome Power Of linux-next
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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This reverts commit e37f14a5fb85522f3bbf88ece6134c4e610ed598.
It turned out other systems also share the same problem with bug 63111
so I made a patch to catch initial brightness level 0 problem. With that
patch applied, we do not need to place HP 250 G1 in DMI table.
References: https://bugzilla.kernel.org/show_bug.cgi?id=63111
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Some firmware doesn't initialize initial backlight level to a proper
value and _BQC will return 0 on first time evaluation. We used to be
able to detect such incorrect value with our code logic, as value 0
normally isn't a valid value in _BCL. But with the introduction of Win8,
firmware begins to fill _BCL with values from 0 to 100, now 0 becomes
a valid value but that value will make user's screen black. This patch
test initial _BQC for value 0, if such a value is returned, do not use
it.
References: https://bugzilla.kernel.org/show_bug.cgi?id=64031
References: https://bugzilla.kernel.org/show_bug.cgi?id=61231
References: https://bugzilla.kernel.org/show_bug.cgi?id=63111
Reported-by: Qingshuai Tian <qingshuai.tian@intel.com>
Tested-by: Aaron Lu <aaron.lu@intel.com> # on "Idealpad u330p"
Reported-and-tested-by: <erno@iki.fi> # on "Acer Aspire V5-573G"
Reported-and-tested-by: Kirill Tkhai <tkhai@yandex.ru> # on "HP 250 G1"
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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When testing if the firmware's initial value is valid, we should use
the corrected level value instead of the raw value returned from
firmware.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Do not load the Intel pstate driver if the platform firmware
(ACPI BIOS) supports the power management alternatives.
The ACPI BIOS indicates that the OS control mode can be used
if the _PSS (Performance Supported States) is defined in ACPI
table. For the OS control mode, the Intel pstate driver will be
loaded.
HP BIOS has several power management modes (firmware, OS-control and
so on). For the OS control mode in HP BIOS, the Intel p-state driver
will be loaded. When the customer chooses the firmware power
management in HP BIOS, the Intel p-state driver will be ignored.
I put hw_vendor_info vendor_info in case other vendors (Dell, Lenovo...)
have their firmware power management. Vendors should make sure their
firmware power management works properly, and they can go for adding
their vendor info to the variable.
I have verified the patch on HP ProLiant servers. The patch worked
correctly.
Signed-off-by: Adrian Huang <adrianhuang0701@gmail.com>
[rjw: Fixed up !CONFIG_ACPI build]
[Linda Knippers: As Adrian has recently left HP, I retested the
updated patch on an HP ProLiant server and verified that it is
behaving correctly. When the BIOS is configured for OS control for
power management, the intel_pstate driver loads as expected. When
the BIOS is configured to provide the power management, the
intel_pstate driver does not load and we get the pcc_cpufreq driver
instead.]
Signed-off-by: Linda Knippers <linda.knippers@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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When system has a lot of highmem (e.g. 16GiB using a 32 bits kernel),
the code to calculate how much memory we need to preallocate in
normal zone may cause overflow. As Leon has analysed:
It looks that during computing 'alloc' variable there is overflow:
alloc = (3943404 - 1970542) - 1978280 = -5418 (signed)
And this function goes to err_out.
Fix this by avoiding that overflow.
References: https://bugzilla.kernel.org/show_bug.cgi?id=60817
Reported-and-tested-by: Leon Drugi <eyak@wp.pl>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Increasingly, Linux is running on thermally constrained devices. The simple
thermal relationship between processor and fan has become past for modern
computers.
As hardware vendors cope with the thermal constraints on their products,
more sensors are added, new cooling capabilities are introduced. The
complexity of the thermal relationship can grow exponentially among cooling
devices, zones, sensors, and trip points. They can also change dynamically.
To expose such relationship to the userspace, Linux generic thermal layer
introduced sysfs entry at /sys/class/thermal with a matrix of symbolic
links, trip point bindings, and device instances. To traverse such
matrix by hand is not a trivial task. Testing is also difficult in that
thermal conditions are often exception cases that hard to reach in
normal operations.
TMON is conceived as a tool to help visualize, tune, and test the
complex thermal subsystem.
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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According to the ACPI spec (5.0, Section 6.3.5), the "Device
insertion in progress (pending)" (0x80) _OST status code is
reserved for the "Insertion Processing" (0x200) source event
which is "a result of an OSPM action". Specifically, it is not
a notification, so that status code should not be used during
notification processing, which unfortunately is done by
acpi_scan_bus_device_check().
For this reason, drop the ACPI_OST_SC_INSERT_IN_PROGRESS _OST
status evaluation from there (it was a mistake to put it in there
in the first place).
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: All applicable <stable@vger.kernel.org>
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