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Bhumika Goyal [Fri, 11 Aug 2017 15:56:49 +0000 (21:26 +0530)]
ASoC: Intel: kbl: make snd_pcm_hw_constraint_list const
Make these const as they are only passed to the function
snd_pcm_hw_constraint_list having the corresponding argument as const.
Done using Coccinelle.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Arvind Yadav [Mon, 14 Aug 2017 05:56:27 +0000 (11:26 +0530)]
ASoC: intel: constify snd_pcm_ops structures
snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/soc.h> work with
const snd_pcm_ops. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Bhumika Goyal [Mon, 14 Aug 2017 11:38:41 +0000 (17:08 +0530)]
ASoC: Intel: make snd_soc_platform_driver const
Make these const as they are only passed as the 2nd argument to the
function snd_soc_register_platform, which is of type const.
Done using Coccinelle.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Arvind Yadav [Thu, 3 Aug 2017 17:50:01 +0000 (23:20 +0530)]
ASoC: Intel: constify pci_device_id.
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Guneshwor Singh [Wed, 2 Aug 2017 16:21:20 +0000 (21:51 +0530)]
ASoC: Intel: cnl: add pci id for cnl
Enable cnl by adding its pci id in skl_ids[].
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Guneshwor Singh [Wed, 2 Aug 2017 16:21:19 +0000 (21:51 +0530)]
ASoC: Intel: cnl: add dsp ops for cannonlake
Add cannonlake dsp support by adding its dsp_ops.
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Guneshwor Singh [Wed, 2 Aug 2017 16:21:18 +0000 (21:51 +0530)]
ASoC: Intel: cnl: Add sst library functions for cnl platform
This adds the necessary DSP functions specific for the Cannonlake platform
which includes firmware download using host DMA, DO/D3 handlers, irq_thread
handlers and sst ops.
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Guneshwor Singh [Wed, 2 Aug 2017 16:21:17 +0000 (21:51 +0530)]
ASoC: Intel: cnl: Unstatify common ipc functions
Common ipc functions can be reused for cnl, so make them non-static.
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Guneshwor Singh [Wed, 2 Aug 2017 16:21:16 +0000 (21:51 +0530)]
ASoC: Intel: Skylake: Move platform specific init to platform dsp_init()
Move ipc_init() from helper function to respective platform's dsp_init()
as ipc_init() per platform can be different.
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Guneshwor Singh [Wed, 2 Aug 2017 16:21:15 +0000 (21:51 +0530)]
ASoC: Intel: cnl: Add cnl dsp functions and registers
This adds Cannonlake specific registers and support for CNL dsp related
library functions for programming the registers to power up/down dsp cores,
set/unset reset states for each core, enable/disable ipc interrupts and few
wrappers to be called from elsewhere.
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Pardha Saradhi K [Wed, 2 Aug 2017 16:21:14 +0000 (21:51 +0530)]
ASoC: Intel: Skylake: Add dsp cores management
This patch adds support to manage additional cores on a demand basis.
For instance, if module is set to run on certain core, the particular
core is powered up in module init. The same is again powered down in
module unload.
Signed-off-by: Pardha Saradhi K <pardha.saradhi.kesapragada@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Guneshwor Singh [Wed, 2 Aug 2017 16:21:13 +0000 (21:51 +0530)]
ASoC: Intel: Skylake: Use num_core to allocate instead of macro
For different platforms, number of dsp cores can vary. So instead of
creating array of size SKL_DSP_CORES_MAX, use num_core in dsp_ops() of
the respective platform to allocate core usage counts and states.
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Dharageswari R [Wed, 2 Aug 2017 16:21:12 +0000 (21:51 +0530)]
ASoC: Intel: Skylake: Add num of cores in dsp ops
Number of dsp cores may differ for different platforms hence
adding it in dsp ops.
Signed-off-by: Dharageswari R <dharageswari.r@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Naveen Manohar [Wed, 2 Aug 2017 06:13:35 +0000 (11:43 +0530)]
ASoC: Intel: kbl: Add map for new DAIs for Multi-Playback & Echo Ref
Modified DAPM Machine map for machine to suit the toplogy change
required to enable features:
Multi-Endpoint Playback
Echo Reference Capture
Signed-off-by: Naveen M <naveen.m@intel.com>
Signed-off-by: Sathya Prakash M R <sathya.prakash.m.r@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Naveen Manohar [Wed, 2 Aug 2017 06:13:34 +0000 (11:43 +0530)]
ASoC: Intel: kbl: Add DAI links for Multi-Playback & Echo-reference
Add new FE DAI links to support:
1. Parallel playback on 2 ports simultaneously
2. Echo reference capture capability
Signed-off-by: Naveen M <naveen.m@intel.com>
Signed-off-by: Sathya Prakash M R <sathya.prakash.m.r@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Naveen Manohar [Wed, 2 Aug 2017 06:13:33 +0000 (11:43 +0530)]
ASoC: Intel: kbl: Add new FEs for Multi-Playback & Echo-Reference
Adding new frontends to support:
1. Parallel playback on 2 ports simultaneously
2. Echo reference capture capability
Signed-off-by: Naveen M <naveen.m@intel.com>
Signed-off-by: Sathya Prakash M R <sathya.prakash.m.r@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
guneshwor.o.singh@intel.com [Fri, 28 Jul 2017 10:42:16 +0000 (16:12 +0530)]
ASoC: Intel: Skylake: Fix potential null pointer dereference
Check if the next sink is not null to avoid potential null pointer
dereference in skl_tplg_bind_sinks().
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
guneshwor.o.singh@intel.com [Fri, 28 Jul 2017 10:42:15 +0000 (16:12 +0530)]
ASoC: Intel: Skylake: Remove return check for skl_codec_create()
Since skl_codec_create() always returns 0, make it return void and remove
return check.
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Dronamraju Santosh P K [Fri, 28 Jul 2017 10:42:14 +0000 (16:12 +0530)]
ASoC: Intel: bxtn: Remove code loader reference in cleanup
Since Broxton does not use code loader DMA, remove code loader cleanup
in its dsp cleanup routine. Remove the iounmap too as it is done in
skl_free_dsp().
Signed-off-by: Dronamraju Santosh P K <santosh.pavan.kumarx.dronamraju@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
guneshwor.o.singh@intel.com [Fri, 28 Jul 2017 10:42:13 +0000 (16:12 +0530)]
ASoC: Intel: Skylake: Reset the controller in probe
Controller can be in reset state by default. Capability structure
traversal requires the controller to be out of reset else it
results in broken capability parsing. Hence make sure that controller is
out of reset before parsing capabilities by doing a full reset.
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Harsha Priya N [Fri, 28 Jul 2017 00:41:27 +0000 (17:41 -0700)]
ASoC: Intel: Enabling 4 slot IV feedback for max98927 on Kabylake platform
This patch enables 4 slot IV feedback for max98927 speaker amp codec.
Signed-off-by: Harsha Priya <harshapriya.n@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Kevin Cheng [Thu, 27 Jul 2017 08:38:37 +0000 (16:38 +0800)]
ASoC: Intel: Add Kabylake RT5663 machine driver entry
Adds Kabylake rt5663 machine driver entry into machine table
Signed-off-by: Kevin Cheng <kevin.cheng@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Kevin Cheng [Thu, 27 Jul 2017 08:38:36 +0000 (16:38 +0800)]
ASoC: Intel: Add Kabylake machine driver for RT5663
This patch adds Kabylake I2S machine driver which uses
RT5663 as headset on ssp1.
Signed-off-by: Kevin Cheng <kevin.cheng@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Pradeep Tewani [Tue, 25 Jul 2017 06:29:46 +0000 (11:59 +0530)]
ASoC: Intel: board: Fix missing sentinel for bxt_board_id
Without a sentinel in the array of platform devices, we can get a panic
so add a sentinel. Full stack dump below:
[ 231.564705] BUG: KASAN: global-out-of-bounds in platform_match+0xb0/0x146
[ 231.565500] Read of size 1 at addr
ffffffff8380a1a0 by task swapper/0/1
[ 231.566280]
[ 231.566594] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
4.12.0-00289-g152771f #1
[ 231.567526] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 231.568730] Call Trace:
[ 231.569128] dump_stack+0xf8/0x14a
[ 231.569615] print_address_description+0x57/0x1e4
[ 231.570216] ? driver_probe_device+0x814/0x814
[ 231.570798] kasan_report+0x1cb/0x1eb
[ 231.571302] ? platform_match+0xb0/0x146
[ 231.571833] __asan_load1+0x45/0x47
[ 231.572324] platform_match+0xb0/0x146
[ 231.572843] ? platform_uevent+0x73/0x73
[ 231.573370] __driver_attach+0x47/0x16a
[ 231.573890] bus_for_each_dev+0x11a/0x15c
[ 231.574422] ? bus_remove_file+0x57/0x57
[ 231.574951] ? do_raw_spin_unlock+0xc3/0xe0
[ 231.575501] driver_attach+0x2b/0x2e
[ 231.576002] bus_add_driver+0x25e/0x3c5
[ 231.576520] ? set_debug_rodata+0x20/0x20
[ 231.584776] driver_register+0x13e/0x19d
[ 231.585305] __platform_driver_register+0x6c/0x71
[ 231.585908] ? skl_driver_init+0x20/0x20
[ 231.586436] broxton_audio_init+0x17/0x19
[ 231.586976] do_one_initcall+0x11a/0x221
[ 231.587499] ? start_kernel+0x525/0x525
[ 231.588020] ? lock_downgrade+0x281/0x2ec
[ 231.588557] ? trace_hardirqs_on_caller+0x223/0x267
[ 231.589169] ? _raw_spin_unlock_irqrestore+0x49/0x55
[ 231.589791] ? set_debug_rodata+0x20/0x20
[ 231.590324] kernel_init_freeable+0x1fd/0x2b0
[ 231.590891] ? rest_init+0x17c/0x17c
[ 231.591384] kernel_init+0x11/0x157
[ 231.591876] ? rest_init+0x17c/0x17c
[ 231.592371] ret_from_fork+0x2a/0x40
[ 231.592865]
[ 231.593166] The buggy address belongs to the variable:
[ 231.593806] bxt_board_ids+0x40/0x9e0
Fixes:
152771fbc3 ("ASoC: Intel: board: Add Geminilake platform support")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Pradeep Tewani <pradeep.d.tewani@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Pradeep Tewani [Thu, 20 Jul 2017 06:10:57 +0000 (11:40 +0530)]
ASoC: Intel: board: Add Geminilake platform support
Geminilake also features rt298 codec, so use the same machine driver
as Broxton. Geminilake uses SSP2 instead of SSP5.
Signed-off-by: Pradeep Tewani <pradeep.d.tewani@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Pradeep Tewani [Thu, 20 Jul 2017 06:10:56 +0000 (11:40 +0530)]
ASoC: hdac_hdmi: Add the vendor nid for Geminilake HDMI
Geminilake HDMI codec has the different vendor nid. This patch adds the
vendor nid as the part of driver data and uses it.
Signed-off-by: Pradeep Tewani <pradeep.d.tewani@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Pradeep Tewani [Thu, 20 Jul 2017 06:10:55 +0000 (11:40 +0530)]
ASoC: Intel: board: Remove .owner initialization in bxt_rt298 driver
The .owner field is not required to be initialized in the driver. So,
remove it.
Signed-off-by: Pradeep Tewani <pradeep.d.tewani@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Gustavo A. R. Silva [Thu, 13 Jul 2017 06:26:06 +0000 (01:26 -0500)]
ASoC: Intel: Atom: constify snd_soc_dai_ops structures
These structures are only stored in the ops field of a snd_soc_dai_driver
structure. That field is declared const, so snd_soc_dai_ops structures
that have this property can be declared as const also.
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Gustavo A. R. Silva [Thu, 13 Jul 2017 06:16:46 +0000 (01:16 -0500)]
ASoC: Intel: Skylake: constify snd_soc_dai_ops structures
These structures are only stored in the ops field of a snd_soc_dai_driver
structure. That field is declared const, so snd_soc_dai_ops structures
that have this property can be declared as const also.
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Colin Ian King [Thu, 13 Jul 2017 23:04:06 +0000 (00:04 +0100)]
ASoC: Intel: Skylake: fix type in debug message
Trivial fix to typo in debug message, dst_instacne should be
dst_instance
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Subhransu S. Prusty [Fri, 30 Jun 2017 13:08:44 +0000 (18:38 +0530)]
ASoC: Intel: Skylake: Fix default dma_buffer_size
If the dma_buffer_size is not defined in topology, fix it to 2ms default
value to make backward compatible.
Fixes:
f6e6ab1d16ec ("ASoC: Intel: Skylake: Fix dma buffer size calculation")
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Mark Brown [Mon, 3 Jul 2017 15:51:38 +0000 (16:51 +0100)]
Merge remote-tracking branch 'asoc/topic/inte' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:51:36 +0000 (16:51 +0100)]
Merge remote-tracking branches 'asoc/topic/davinci', 'asoc/topic/drm', 'asoc/topic/dwc' and 'asoc/topic/es8316' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:51:34 +0000 (16:51 +0100)]
Merge remote-tracking branches 'asoc/topic/cs4271', 'asoc/topic/cs53l30', 'asoc/topic/da7213' and 'asoc/topic/da7218' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:51:31 +0000 (16:51 +0100)]
Merge remote-tracking branches 'asoc/topic/ak4613', 'asoc/topic/ak4642', 'asoc/topic/atmel', 'asoc/topic/cs35l34' and 'asoc/topic/cs35l35' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:51:30 +0000 (16:51 +0100)]
Merge remote-tracking branch 'asoc/topic/rcar' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:51:30 +0000 (16:51 +0100)]
Merge remote-tracking branch 'asoc/topic/intel' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:51:29 +0000 (16:51 +0100)]
Merge remote-tracking branch 'asoc/topic/dapm' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:51:26 +0000 (16:51 +0100)]
Merge remote-tracking branches 'asoc/fix/rockchip', 'asoc/fix/rt5645', 'asoc/fix/rt5663', 'asoc/fix/rt5670' and 'asoc/fix/zte' into asoc-linus
Mark Brown [Mon, 3 Jul 2017 15:51:23 +0000 (16:51 +0100)]
Merge remote-tracking branches 'asoc/fix/ak4613', 'asoc/fix/atmel', 'asoc/fix/compress', 'asoc/fix/cs35l35' and 'asoc/fix/da7219' into asoc-linus
Mark Brown [Mon, 3 Jul 2017 15:51:22 +0000 (16:51 +0100)]
Merge remote-tracking branch 'asoc/fix/rcar' into asoc-linus
Mark Brown [Mon, 3 Jul 2017 15:51:22 +0000 (16:51 +0100)]
Merge remote-tracking branch 'asoc/fix/intel' into asoc-linus
Vinod Koul [Mon, 3 Jul 2017 08:24:47 +0000 (13:54 +0530)]
ASoC: Intel: Skylake: Remove driver debugfs exit
For driver debugfs, debugfs_remove_recursive() is called which is not
needed as it is already done in ASoC core debugfs. And a device managed
memory need not be freed explicitly as device core frees it up. So
remove unnecessary skl_debugfs_exit().
Fixes:
5cdf6c09ca9d ASoC: ("Intel: Skylake: Add debugfs support")
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Vinod Koul [Mon, 3 Jul 2017 08:24:46 +0000 (13:54 +0530)]
ASoC: Intel: Skylake: explicitly add the headers sst-dsp.h
Commit
bdd0384a5ada ("ASoC: Intel: Skylake: Add support to read firmware
registers") introduced firmware register read so added sst-dsp-priv.h but
missed adding sst-dsp.h as that leads to below compiler warning:
In file included from sound/soc/intel/skylake/skl-debug.c:23:0:
>> sound/soc/intel/skylake/../common/sst-dsp-priv.h:63:42: warning:
'struct sst_pdata' declared inside parameter list [enabled by default]
int (*init)(struct sst_dsp *sst, struct sst_pdata *pdata);
^
>> sound/soc/intel/skylake/../common/sst-dsp-priv.h:63:42: warning:
its scope is only this definition or declaration, which is probably
not what you want [enabled by default]
So add the missing header.
Fixes:
bdd0384a5ada ("ASoC: Intel: Skylake: Add support to read firmware registers")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Mark Brown [Mon, 3 Jul 2017 15:15:23 +0000 (16:15 +0100)]
Merge remote-tracking branch 'asoc/topic/zx-aud96p22' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:20 +0000 (16:15 +0100)]
Merge remote-tracking branches 'asoc/topic/stm32', 'asoc/topic/sunxi', 'asoc/topic/tlv320dac31xx', 'asoc/topic/topology' and 'asoc/topic/wm-adsp' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:19 +0000 (16:15 +0100)]
Merge remote-tracking branches 'asoc/topic/samsung', 'asoc/topic/sgtl5000' and 'asoc/topic/sh' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:17 +0000 (16:15 +0100)]
Merge remote-tracking branches 'asoc/topic/rt5614', 'asoc/topic/rt5645', 'asoc/topic/rt5651', 'asoc/topic/rt5665' and 'asoc/topic/rt5670' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:15 +0000 (16:15 +0100)]
Merge remote-tracking branches 'asoc/topic/omap', 'asoc/topic/pxa', 'asoc/topic/rockchip' and 'asoc/topic/rt5514' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:12 +0000 (16:15 +0100)]
Merge remote-tracking branches 'asoc/topic/msm8916', 'asoc/topic/mtk', 'asoc/topic/nau8824', 'asoc/topic/nau8825' and 'asoc/topic/of-graph' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:11 +0000 (16:15 +0100)]
Merge remote-tracking branches 'asoc/topic/fsl', 'asoc/topic/hdmi', 'asoc/topic/hisi' and 'asoc/topic/max9867' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:09 +0000 (16:15 +0100)]
Merge remote-tracking branches 'asoc/topic/davinci', 'asoc/topic/drm', 'asoc/topic/dwc' and 'asoc/topic/es8316' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:07 +0000 (16:15 +0100)]
Merge remote-tracking branches 'asoc/topic/cs4271', 'asoc/topic/cs53l30', 'asoc/topic/da7213' and 'asoc/topic/da7218' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:05 +0000 (16:15 +0100)]
Merge remote-tracking branches 'asoc/topic/ak4613', 'asoc/topic/ak4642', 'asoc/topic/atmel', 'asoc/topic/cs35l34' and 'asoc/topic/cs35l35' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:04 +0000 (16:15 +0100)]
Merge remote-tracking branch 'asoc/topic/rcar' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:04 +0000 (16:15 +0100)]
Merge remote-tracking branch 'asoc/topic/intel' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:03 +0000 (16:15 +0100)]
Merge remote-tracking branch 'asoc/topic/dapm' into asoc-next
Mark Brown [Mon, 3 Jul 2017 15:15:00 +0000 (16:15 +0100)]
Merge remote-tracking branches 'asoc/fix/rockchip', 'asoc/fix/rt5645', 'asoc/fix/rt5663', 'asoc/fix/rt5670' and 'asoc/fix/zte' into asoc-linus
Mark Brown [Mon, 3 Jul 2017 15:14:58 +0000 (16:14 +0100)]
Merge remote-tracking branches 'asoc/fix/ak4613', 'asoc/fix/atmel', 'asoc/fix/compress', 'asoc/fix/cs35l35' and 'asoc/fix/da7219' into asoc-linus
Mark Brown [Mon, 3 Jul 2017 15:14:57 +0000 (16:14 +0100)]
Merge remote-tracking branch 'asoc/fix/rcar' into asoc-linus
Mark Brown [Mon, 3 Jul 2017 15:14:57 +0000 (16:14 +0100)]
Merge remote-tracking branch 'asoc/fix/intel' into asoc-linus
Linus Torvalds [Sun, 2 Jul 2017 23:07:02 +0000 (16:07 -0700)]
Linux 4.12
Sylvain 'ythier' Hitier [Sun, 2 Jul 2017 13:21:56 +0000 (15:21 +0200)]
moduleparam: fix doc: hwparam_irq configures an IRQ
Signed-off-by: Sylvain 'ythier' Hitier <sylvain.hitier@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 2 Jul 2017 18:53:44 +0000 (11:53 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
"Here's a final round of fixes for 4.12:
- Fix misordered instructions in assembly code making kenel startup
via UHB unreliable.
- Fix special case of MADDF and MADDF emulation.
- Fix alignment issue in address calculation in pm-cps on 64 bit.
- Fix IRQ tracing & lockdep when rescheduling
- Systems with MAARs require post-DMA cache flushes.
The reordering fix and the MADDF/MSUBF fix have sat in linux-next for
a number of days. The others haven't propagated from my pull tree to
linux-next yet but all have survived manual testing and Imagination's
automated test system and there are no pending bug reports"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Avoid accidental raw backtrace
MIPS: Perform post-DMA cache flushes on systems with MAARs
MIPS: Fix IRQ tracing & lockdep when rescheduling
MIPS: pm-cps: Drop manual cache-line alignment of ready_count
MIPS: math-emu: Handle zero accumulator case in MADDF and MSUBF separately
MIPS: head: Reorder instructions missing a delay slot
Linus Torvalds [Sun, 2 Jul 2017 17:09:40 +0000 (10:09 -0700)]
Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fix from Russell King:
"One final fix for 4.12 - Doug found a boot failure case triggered by
requesting a non-even MB vmalloc size"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8685/1: ensure memblock-limit is pmd-aligned
Linus Torvalds [Sat, 1 Jul 2017 16:10:17 +0000 (09:10 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Fixlets for x86:
- Prevent kexec crash when KASLR is enabled, which was caused by an
address calculation bug
- Restore the freeing of PUDs on memory hot remove
- Correct a negated pointer check in the intel uncore performance
monitoring driver
- Plug a memory leak in an error exit path in the RDT code"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/intel_rdt: Fix memory leak on mount failure
x86/boot/KASLR: Fix kexec crash due to 'virt_addr' calculation bug
x86/boot/KASLR: Add checking for the offset of kernel virtual address randomization
perf/x86/intel/uncore: Fix wrong box pointer check
x86/mm/hotplug: Fix BUG_ON() after hot-remove by not freeing PUD
Linus Torvalds [Sat, 1 Jul 2017 15:46:52 +0000 (08:46 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fix from Thomas Gleixner:
"The last fix for perf for this cycles:
- Prevent a segfault when kernel.kptr_restrict=2 is set by avoiding a
null pointer dereference"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf machine: Fix segfault for kernel.kptr_restrict=2
Linus Torvalds [Sat, 1 Jul 2017 15:39:13 +0000 (08:39 -0700)]
Merge tag 'pinctrl-v4.12-4' of git://git./linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fix from Linus Walleij:
"Brian noticed that this regression has not got a proper fix for the
entire merge window and consequently we need to revert the offending
commit.
It's part of the RT-mainstream work, the dance goes like this, two
steps forward, one step back.
Summary:
- A last fix for v4.12, an IRQ problem reported early in the merge
window appears not to have been properly fixed, so the offending
commit will be reverted and we will find the proper fix for v4.13.
Hopefully"
* tag 'pinctrl-v4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
Revert "pinctrl: rockchip: avoid hardirq-unsafe functions in irq_chip"
Linus Torvalds [Sat, 1 Jul 2017 15:24:54 +0000 (08:24 -0700)]
Merge tag 'gpio-v4.12-4' of git://git./linux/kernel/git/linusw/linux-gpio
Pull last minute fixes for GPIO from Linus Walleij:
- Fix another ACPI problem with broken BIOSes.
- Filter out the right GPIO events, making a very user-visible bug go
away.
* tag 'gpio-v4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: acpi: Skip _AEI entries without a handler rather then aborting the scan
gpiolib: fix filtering out unwanted events
Linus Torvalds [Sat, 1 Jul 2017 00:18:57 +0000 (17:18 -0700)]
Merge tag 'trace-v4.12-rc5' of git://git./linux/kernel/git/rostedt/linux-trace
Pull last-minute tracing fixes from Steven Rostedt:
"Two fixes:
One is for a crash when using the :mod: trace probe command into
stack_trace_filter. This bug was introduced during the last merge
window.
The other was there forever. It's a small bug that makes it impossible
to name a module function for kprobes when the module starts with a
digit"
* tag 'trace-v4.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing/kprobes: Allow to create probe with a module name starting with a digit
ftrace: Fix regression with module command in stack_trace_filter
Zack Weinberg [Wed, 14 Jun 2017 15:14:28 +0000 (08:14 -0700)]
uapi/linux/a.out.h: don't use deprecated system-specific predefines.
uapi/linux/a.out.h uses a number of predefined macros that are
deprecated because they're in the application namespace
(e.g. '#ifdef linux' instead of '#ifdef __linux__').
This patch either corrects or just removes them if they are not
applicable to Linux.
The primary reason this is worth bothering to fix, considering how
obsolete a.out binary support is, is that the GCC build process
considers this such a severe error that it will copy the header into a
private directory and change the macro names, which causes future
updates to the header to be masked. This header probably doesn't get
updated very often anymore, but it is the _only_ uapi header that gets
this treatment, so IMHO it is worth patching just to drive that number
all the way to zero.
Signed-off-by: Zack Weinberg <zackw@panix.com>
[hch: removed dead conditionals]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jakub Kicinski [Thu, 29 Jun 2017 04:25:48 +0000 (21:25 -0700)]
hashtable: remove repeated phrase from a comment
"in a rcu enabled hashtable" is repeated twice in a comment.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Vikas Shivappa [Mon, 26 Jun 2017 18:55:49 +0000 (11:55 -0700)]
x86/intel_rdt: Fix memory leak on mount failure
If mount fails, the kn_info directory is not freed causing memory leak.
Add the missing error handling path.
Fixes:
4e978d06dedb ("x86/intel_rdt: Add "info" files to resctrl file system")
Signed-off-by: Vikas Shivappa <vikas.shivappa@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: ravi.v.shankar@intel.com
Cc: tony.luck@intel.com
Cc: fenghua.yu@intel.com
Cc: peterz@infradead.org
Cc: vikas.shivappa@intel.com
Cc: andi.kleen@intel.com
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1498503368-20173-3-git-send-email-vikas.shivappa@linux.intel.com
Linus Torvalds [Fri, 30 Jun 2017 17:55:34 +0000 (10:55 -0700)]
Merge tag 'powerpc-4.12-8' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Hopefully the last two powerpc fixes for 4.12.
The CXL one is larger than I'd usually send at rc7, but it fixes new
code this cycle, so better to have it working for the release. It was
actually sent a few weeks back but got blocked in testing behind
another fix that was causing issues.
We are still tracking one crash in v4.12-rc7, but only one person has
reproduced it and the commit identified by bisect doesn't touch any of
the relevant code, so I think it's 50/50 whether that commit is
actually the problem or it's some code layout / toolchain issue.
Two fixes for code we merged this cycle:
- cxl: Fixes for Coherent Accelerator Interface Architecture 2.0
- Avoid miscompilation w/GCC 4.6.3 on 32-bit - don't inline
copy_to/from_user()
Thanks to Al Viro, Larry Finger, Christophe Lombard"
* tag 'powerpc-4.12-8' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/32: Avoid miscompilation w/GCC 4.6.3 - don't inline copy_to/from_user()
cxl: Fixes for Coherent Accelerator Interface Architecture 2.0
Linus Torvalds [Fri, 30 Jun 2017 17:37:48 +0000 (10:37 -0700)]
Merge tag 'iommu-fixes-v4.12-rc7' of git://git./linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
"Two fixes:
- A fix for AMD IOMMU interrupt remapping code when IRQs are
forwarded directly to KVM guests
- Fixed check in the recently merged code to allow tboot with
Intel VT-d disabled"
* tag 'iommu-fixes-v4.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Fix interrupt remapping when disable guest_mode
iommu/vt-d: Correctly disable Intel IOMMU force on
Linus Torvalds [Fri, 30 Jun 2017 17:30:26 +0000 (10:30 -0700)]
Merge tag 'sound-4.12' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Two last-minute HD-audio fixes"
* tag 'sound-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix endless loop of codec configure
ALSA: hda - set input_path bitmap to zero after moving it to new place
Linus Torvalds [Fri, 30 Jun 2017 17:22:59 +0000 (10:22 -0700)]
Merge branch 'overlayfs-linus' of git://git./linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi:
"Fix two bugs in copy-up code. One introduced in 4.11 and one in
4.12-rc"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: don't set origin on broken lower hardlink
ovl: copy-up: don't unlock between lookup and link
Vunny Sodhi [Fri, 30 Jun 2017 03:36:08 +0000 (09:06 +0530)]
ASoC: Intel: Skylake: Add support to read firmware registers
This patch adds debugfs support to read fw registers, mailbox
offsets and sram address.
Signed-off-by: Mousumi Jana <mousumix.jana@intel.com>
Signed-off-by: Ramesh Babu <ramesh.babu@intel.com>
Signed-off-by: Jayachandran B <jayachandran.b@intel.com>
Signed-off-by: Pardha Saradhi K <pardha.saradhi.kesapragada@intel.com>
Signed-off-by: Vunny Sodhi <vunnyx.sodhi@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Guneshwor Singh [Fri, 30 Jun 2017 03:36:07 +0000 (09:06 +0530)]
ASoC: Intel: Skylake: Add sram address to sst_addr structure
SRAM address and memory window size differ for different platforms.
So add members to sst_addr structure and initialize them in the
respective dsp_init().
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Vinod Koul [Fri, 30 Jun 2017 03:36:06 +0000 (09:06 +0530)]
ASoC: Intel: Skylake: Debugfs facility to dump module config
Driver modules have lot of information represented in struct
skl_module_cfg. Knowing this is useful for debug, so enable
debugfs for this structure.
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Vunny Sodhi <vunnyx.sodhi@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Vinod Koul [Fri, 30 Jun 2017 03:36:05 +0000 (09:06 +0530)]
ASoC: Intel: Skylake: Add debugfs support
For debug, the kernel debugfs mechanism is available. We can add various
debug options for driver like module configuration read, firmware register
read etc.
This patch adds debugfs as a child to asoc plaform component and caller is
added for skylake driver to do init and cleanup of debugfs.
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Vunny Sodhi <vunnyx.sodhi@intel.com>
Signed-off-by: Guneshwor Singh <guneshwor.o.singh@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Wu Fengguang [Thu, 29 Jun 2017 16:27:13 +0000 (00:27 +0800)]
ASoC: fix semicolon.cocci warnings
sound/soc/soc-core.c:1961:2-3: Unneeded semicolon
Remove unneeded semicolon.
Generated by: scripts/coccinelle/misc/semicolon.cocci
Fixes:
98faf436ee05 ("ASoC: Drop invalid DMI fields when setting card long name from DMI info")
CC: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Takashi Iwai [Thu, 29 Jun 2017 16:08:33 +0000 (18:08 +0200)]
ASoC: rt5645: Add quirk override by module option
For making the development easier, add quirk module option to override
the platform data setup. For example, a platform with inverted jack
detection with jd_mode=2, pass the value 0x21 (0x1 = inv_jd1_1, 0x20 =
jd_mode=2). It overrides the whole pdata fields, so pass it
carefully.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Tested-by: James Cameron <quozl@laptop.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Colin Ian King [Fri, 30 Jun 2017 09:50:59 +0000 (10:50 +0100)]
ASoC: rsnd: make arrays path and cmd_case static const
Don't populate the arrays path and cmd_case on the stack but make
them static const. Makes the object code smaller:
Before:
text data bss dec hex filename
2673 624 0 3297 ce1 sound/soc/sh/rcar/cmd.o
After:
text data bss dec hex filename
2398 768 0 3166 c5e sound/soc/sh/rcar/cmd.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Shawn Guo [Thu, 29 Jun 2017 13:26:38 +0000 (21:26 +0800)]
ASoC: audio-graph-card: add widgets and routing for external amplifier support
It's very common that audio card has a machine level amplifier which is
controlled by GPIO. The patch adds DAPM widgets and routing support
into audio-graph-card driver, and creates an output driver widget with
event to control the amplifier via GPIO.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Shawn Guo [Thu, 29 Jun 2017 13:26:37 +0000 (21:26 +0800)]
ASoC: audio-graph-card: update bindings for amplifier support
The audio-graph-card should be able to support widgets and routing in
the same way as what simple-audio-card does. The patch adds the
properties into audio-graph-card bindings. Then an optional property
'pa-gpios' for controlling external amplifier, which depends on DAPM
widgets and routing, is added.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Bard Liao [Thu, 29 Jun 2017 12:07:50 +0000 (20:07 +0800)]
ASoC: rt5665: calibration should be done before jack detection
We will set some volatile registers in jack detection function. But
those volatile registers will be clear in rt5665_calibrate function
because we set cache bypass and reset codec in rt5665_calibrate function.
This patch add a flag to make sure that rt5665_calibrate is done
before starting jack detection.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Arvind Yadav [Thu, 29 Jun 2017 05:10:50 +0000 (10:40 +0530)]
ASoC: rsnd: constify dev_pm_ops structures.
dev_pm_ops are not supposed to change at runtime. All functions
working with dev_pm_ops provided by <linux/device.h> work with const
dev_pm_ops. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
8172 920 0 9092 2384 sound/soc/sh/rcar/core.o
File size After adding 'const':
text data bss dec hex filename
8364 728 0 9092 2384 sound/soc/sh/rcar/core.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
John Hsu [Thu, 29 Jun 2017 03:41:30 +0000 (11:41 +0800)]
ASoC: nau8825: change crosstalk-bypass property to bool type
The property type of "nuvoton,crosstalk-bypass" changes to boolean.
The document is updated as well.
Signed-off-by: John Hsu <KCHSU0@nuvoton.com>
Signed-off-by: John Hsu <supercraig0719@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Bard Liao [Thu, 29 Jun 2017 01:47:55 +0000 (09:47 +0800)]
ASoC: rt5670: fix incompatible pointer type of set_sysclk
The first parameter is codec not dai.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Liam Girdwood [Thu, 29 Jun 2017 13:22:24 +0000 (14:22 +0100)]
ASoC: dapm: Add new widget type for constructing DAPM graphs on DSPs.
Add some DAPM widget types to better support the construction of DAPM
graphs within DSPs.
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Liam Girdwood [Thu, 29 Jun 2017 13:22:26 +0000 (14:22 +0100)]
ASoC: topology: show index in debug when adding DAPM routes
Makes the debug output much more useful.
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Liam Girdwood [Thu, 29 Jun 2017 13:22:25 +0000 (14:22 +0100)]
ASoC: topology: Fix usage of SND_SOC_TPLG_INDEX_ALL during load
SND_SOC_TPLG_INDEX_ALL is used by drivers to tell the core to load
all topology component indexes, not just the index in the header.
Fix this so that SND_SOC_TPLG_INDEX_ALL will load all components no matter
their index.
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Colin Ian King [Fri, 30 Jun 2017 09:16:36 +0000 (10:16 +0100)]
ASoC: ak4642: make arrays fs_list and ps_list static const
Don't populate the arrays fs_list and ps_list on the stack but make
them static const. Makes the object code smaller:
Before:
text data bss dec hex filename
12084 4888 64 17036 428c sound/soc/codecs/ak4642.o
After:
text data bss dec hex filename
11883 5032 64 16979 4253 sound/soc/codecs/ak4642.o
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Baoquan He [Tue, 27 Jun 2017 12:39:06 +0000 (20:39 +0800)]
x86/boot/KASLR: Fix kexec crash due to 'virt_addr' calculation bug
Kernel text KASLR is separated into physical address and virtual
address randomization. And for virtual address randomization, we
only randomiza to get an offset between 16M and KERNEL_IMAGE_SIZE.
So the initial value of 'virt_addr' should be LOAD_PHYSICAL_ADDR,
but not the original kernel loading address 'output'.
The bug will cause kernel boot failure if kernel is loaded at a different
position than the address, 16M, which is decided at compiled time.
Kexec/kdump is such practical case.
To fix it, just assign LOAD_PHYSICAL_ADDR to virt_addr as initial
value.
Tested-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes:
8391c73 ("x86/KASLR: Randomize virtual address separately")
Link: http://lkml.kernel.org/r/1498567146-11990-3-git-send-email-bhe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Baoquan He [Tue, 27 Jun 2017 12:39:05 +0000 (20:39 +0800)]
x86/boot/KASLR: Add checking for the offset of kernel virtual address randomization
For kernel text KASLR, the virtual address is confined to area of 1G,
[0xffffffff80000000, 0xffffffffc0000000). For the implemenataion of
virtual address randomization, we only randomize to get an offset
between 16M and 1G, then add this offset to the starting address,
0xffffffff80000000. Here 16M is the offset which is decided at linking
stage. So the amount of the local variable 'virt_addr' which respresents
the offset plus the kernel output size can not exceed KERNEL_IMAGE_SIZE.
Add a debug check for the offset. If out of bounds, print error
message and hang there.
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1498567146-11990-2-git-send-email-bhe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Sabrina Dubroca [Thu, 22 Jun 2017 09:24:42 +0000 (11:24 +0200)]
tracing/kprobes: Allow to create probe with a module name starting with a digit
Always try to parse an address, since kstrtoul() will safely fail when
given a symbol as input. If that fails (which will be the case for a
symbol), try to parse a symbol instead.
This allows creating a probe such as:
p:probe/vlan_gro_receive 8021q:vlan_gro_receive+0
Which is necessary for this command to work:
perf probe -m 8021q -a vlan_gro_receive
Link: http://lkml.kernel.org/r/fd72d666f45b114e2c5b9cf7e27b91de1ec966f1.1498122881.git.sd@queasysnail.net
Cc: stable@vger.kernel.org
Fixes:
413d37d1e ("tracing: Add kprobe-based event tracer")
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
James Hogan [Thu, 29 Jun 2017 14:05:04 +0000 (15:05 +0100)]
MIPS: Avoid accidental raw backtrace
Since commit
81a76d7119f6 ("MIPS: Avoid using unwind_stack() with
usermode") show_backtrace() invokes the raw backtracer when
cp0_status & ST0_KSU indicates user mode to fix issues on EVA kernels
where user and kernel address spaces overlap.
However this is used by show_stack() which creates its own pt_regs on
the stack and leaves cp0_status uninitialised in most of the code paths.
This results in the non deterministic use of the raw back tracer
depending on the previous stack content.
show_stack() deals exclusively with kernel mode stacks anyway, so
explicitly initialise regs.cp0_status to KSU_KERNEL (i.e. 0) to ensure
we get a useful backtrace.
Fixes:
81a76d7119f6 ("MIPS: Avoid using unwind_stack() with usermode")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: <stable@vger.kernel.org> # 3.15+
Patchwork: https://patchwork.linux-mips.org/patch/16656/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Tue, 13 Jun 2017 17:01:08 +0000 (10:01 -0700)]
MIPS: Perform post-DMA cache flushes on systems with MAARs
Recent CPUs from Imagination Technologies such as the I6400 or P6600 are
able to speculatively fetch data from memory into caches. This means
that if used in a system with non-coherent DMA they require that caches
be invalidated after a device performs DMA, and before the CPU reads the
DMA'd data, in order to ensure that stale values weren't speculatively
prefetched.
Such CPUs also introduced Memory Accessibility Attribute Registers
(MAARs) in order to control the regions in which they are allowed to
speculate. Thus we can use the presence of MAARs as a good indication
that the CPU requires the above cache maintenance. Use the presence of
MAARs to determine the result of cpu_needs_post_dma_flush() in the
default case, in order to handle these recent CPUs correctly.
Note that the return type of cpu_needs_post_dma_flush() is changed to
bool, such that it's clearer what's happening when cpu_has_maar is cast
to bool for the return value. If this patch were backported to a
pre-v4.7 kernel then MIPS_CPU_MAAR was 1ull<<34, so when cast to an int
we would incorrectly return 0. It so happens that MIPS_CPU_MAAR is
currently 1ull<<30, so when truncated to an int gives a non-zero value
anyway, but even so the implicit conversion from long long int to bool
makes it clearer to understand what will happen than the implicit
conversion from long long int to int would. The bool return type also
fits this usage better semantically, so seems like an all-round win.
Thanks to Ed for spotting the issue for pre-v4.7 kernels & suggesting
the return type change.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Tested-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Cc: Ed Blake <ed.blake@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16363/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Paul Burton [Fri, 3 Mar 2017 23:26:05 +0000 (15:26 -0800)]
MIPS: Fix IRQ tracing & lockdep when rescheduling
When the scheduler sets TIF_NEED_RESCHED & we call into the scheduler
from arch/mips/kernel/entry.S we disable interrupts. This is true
regardless of whether we reach work_resched from syscall_exit_work,
resume_userspace or by looping after calling schedule(). Although we
disable interrupts in these paths we don't call trace_hardirqs_off()
before calling into C code which may acquire locks, and we therefore
leave lockdep with an inconsistent view of whether interrupts are
disabled or not when CONFIG_PROVE_LOCKING & CONFIG_DEBUG_LOCKDEP are
both enabled.
Without tracing this interrupt state lockdep will print warnings such
as the following once a task returns from a syscall via
syscall_exit_partial with TIF_NEED_RESCHED set:
[ 49.927678] ------------[ cut here ]------------
[ 49.934445] WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:3687 check_flags.part.41+0x1dc/0x1e8
[ 49.946031] DEBUG_LOCKS_WARN_ON(current->hardirqs_enabled)
[ 49.946355] CPU: 0 PID: 1 Comm: init Not tainted
4.10.0-00439-gc9fd5d362289-dirty #197
[ 49.963505] Stack :
0000000000000000 ffffffff81bb5d6a 0000000000000006 ffffffff801ce9c4
[ 49.974431]
0000000000000000 0000000000000000 0000000000000000 000000000000004a
[ 49.985300]
ffffffff80b7e487 ffffffff80a24498 a8000000ff160000 ffffffff80ede8b8
[ 49.996194]
0000000000000001 0000000000000000 0000000000000000 0000000077c8030c
[ 50.007063]
000000007fd8a510 ffffffff801cd45c 0000000000000000 a8000000ff127c88
[ 50.017945]
0000000000000000 ffffffff801cf928 0000000000000001 ffffffff80a24498
[ 50.028827]
0000000000000000 0000000000000001 0000000000000000 0000000000000000
[ 50.039688]
0000000000000000 a8000000ff127bd0 0000000000000000 ffffffff805509bc
[ 50.050575]
00000000140084e0 0000000000000000 0000000000000000 0000000000040a00
[ 50.061448]
0000000000000000 ffffffff8010e1b0 0000000000000000 ffffffff805509bc
[ 50.072327] ...
[ 50.076087] Call Trace:
[ 50.079869] [<
ffffffff8010e1b0>] show_stack+0x80/0xa8
[ 50.086577] [<
ffffffff805509bc>] dump_stack+0x10c/0x190
[ 50.093498] [<
ffffffff8015dde0>] __warn+0xf0/0x108
[ 50.099889] [<
ffffffff8015de34>] warn_slowpath_fmt+0x3c/0x48
[ 50.107241] [<
ffffffff801c15b4>] check_flags.part.41+0x1dc/0x1e8
[ 50.114961] [<
ffffffff801c239c>] lock_is_held_type+0x8c/0xb0
[ 50.122291] [<
ffffffff809461b8>] __schedule+0x8c0/0x10f8
[ 50.129221] [<
ffffffff80946a60>] schedule+0x30/0x98
[ 50.135659] [<
ffffffff80106278>] work_resched+0x8/0x34
[ 50.142397] ---[ end trace
0cb4f6ef5b99fe21 ]---
[ 50.148405] possible reason: unannotated irqs-off.
[ 50.154600] irq event stamp: 400463
[ 50.159566] hardirqs last enabled at (400463): [<
ffffffff8094edc8>] _raw_spin_unlock_irqrestore+0x40/0xa8
[ 50.171981] hardirqs last disabled at (400462): [<
ffffffff8094eb98>] _raw_spin_lock_irqsave+0x30/0xb0
[ 50.183897] softirqs last enabled at (400450): [<
ffffffff8016580c>] __do_softirq+0x4ac/0x6a8
[ 50.195015] softirqs last disabled at (400425): [<
ffffffff80165e78>] irq_exit+0x110/0x128
Fix this by using the TRACE_IRQS_OFF macro to call trace_hardirqs_off()
when CONFIG_TRACE_IRQFLAGS is enabled. This is done before invoking
schedule() following the work_resched label because:
1) Interrupts are disabled regardless of the path we take to reach
work_resched() & schedule().
2) Performing the tracing here avoids the need to do it in paths which
disable interrupts but don't call out to C code before hitting a
path which uses the RESTORE_SOME macro that will call
trace_hardirqs_on() or trace_hardirqs_off() as appropriate.
We call trace_hardirqs_on() using the TRACE_IRQS_ON macro before calling
syscall_trace_leave() for similar reasons, ensuring that lockdep has a
consistent view of state after we re-enable interrupts.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Fixes:
1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: linux-mips@linux-mips.org
Cc: stable <stable@vger.kernel.org>
Patchwork: https://patchwork.linux-mips.org/patch/15385/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>