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2021-06-08KVM: SVM: Fix SEV SEND_START session length & SEND_UPDATE_DATA query length ↵Ashish Kalra
after commit 238eca821cee Commit 238eca821cee ("KVM: SVM: Allocate SEV command structures on local stack") uses the local stack to allocate the structures used to communicate with the PSP, which were earlier being kzalloced. This breaks SEV live migration for computing the SEND_START session length and SEND_UPDATE_DATA query length as session_len and trans_len and hdr_len fields are not zeroed respectively for the above commands before issuing the SEV Firmware API call, hence the firmware returns incorrect session length and update data header or trans length. Also the SEV Firmware API returns SEV_RET_INVALID_LEN firmware error for these length query API calls, and the return value and the firmware error needs to be passed to the userspace as it is, so need to remove the return check in the KVM code. Signed-off-by: Ashish Kalra <ashish.kalra@amd.com> Message-Id: <20210607061532.27459-1-Ashish.Kalra@amd.com> Fixes: 238eca821cee ("KVM: SVM: Allocate SEV command structures on local stack") Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-08drm: Fix use-after-free read in drm_getunique()Desmond Cheong Zhi Xi
There is a time-of-check-to-time-of-use error in drm_getunique() due to retrieving file_priv->master prior to locking the device's master mutex. An example can be seen in the crash report of the use-after-free error found by Syzbot: https://syzkaller.appspot.com/bug?id=148d2f1dfac64af52ffd27b661981a540724f803 In the report, the master pointer was used after being freed. This is because another process had acquired the device's master mutex in drm_setmaster_ioctl(), then overwrote fpriv->master in drm_new_set_master(). The old value of fpriv->master was subsequently freed before the mutex was unlocked. To fix this, we lock the device's master mutex before retrieving the pointer from from fpriv->master. This patch passes the Syzbot reproducer test. Reported-by: syzbot+c3a706cec1ea99e1c693@syzkaller.appspotmail.com Signed-off-by: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210608110436.239583-1-desmondcheongzx@gmail.com
2021-06-08drm/vc4: fix vc4_atomic_commit_tail() logicMark Rutland
In vc4_atomic_commit_tail() we iterate of the set of old CRTCs, and attempt to wait on any channels which are still in use. When we iterate over the CRTCs, we have: * `i` - the index of the CRTC * `channel` - the channel a CRTC is using When we check the channel state, we consult: old_hvs_state->fifo_state[channel].in_use ... but when we wait for the channel, we erroneously wait on: old_hvs_state->fifo_state[i].pending_commit ... rather than: old_hvs_state->fifo_state[channel].pending_commit ... and this bogus access has been observed to result in boot-time hangs on some arm64 configurations, and can be detected using KASAN. FIx this by using the correct index. I've tested this on a Raspberry Pi 3 model B v1.2 with KASAN. Trimmed KASAN splat: | ================================================================== | BUG: KASAN: slab-out-of-bounds in vc4_atomic_commit_tail+0x1cc/0x910 | Read of size 8 at addr ffff000007360440 by task kworker/u8:0/7 | CPU: 2 PID: 7 Comm: kworker/u8:0 Not tainted 5.13.0-rc3-00009-g694c523e7267 #3 | | Hardware name: Raspberry Pi 3 Model B (DT) | Workqueue: events_unbound deferred_probe_work_func | Call trace: | dump_backtrace+0x0/0x2b4 | show_stack+0x1c/0x30 | dump_stack+0xfc/0x168 | print_address_description.constprop.0+0x2c/0x2c0 | kasan_report+0x1dc/0x240 | __asan_load8+0x98/0xd4 | vc4_atomic_commit_tail+0x1cc/0x910 | commit_tail+0x100/0x210 | ... | | Allocated by task 7: | kasan_save_stack+0x2c/0x60 | __kasan_kmalloc+0x90/0xb4 | vc4_hvs_channels_duplicate_state+0x60/0x1a0 | drm_atomic_get_private_obj_state+0x144/0x230 | vc4_atomic_check+0x40/0x73c | drm_atomic_check_only+0x998/0xe60 | drm_atomic_commit+0x34/0x94 | drm_client_modeset_commit_atomic+0x2f4/0x3a0 | drm_client_modeset_commit_locked+0x8c/0x230 | drm_client_modeset_commit+0x38/0x60 | drm_fb_helper_set_par+0x104/0x17c | fbcon_init+0x43c/0x970 | visual_init+0x14c/0x1e4 | ... | | The buggy address belongs to the object at ffff000007360400 | which belongs to the cache kmalloc-128 of size 128 | The buggy address is located 64 bytes inside of | 128-byte region [ffff000007360400, ffff000007360480) | The buggy address belongs to the page: | page:(____ptrval____) refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7360 | flags: 0x3fffc0000000200(slab|node=0|zone=0|lastcpupid=0xffff) | raw: 03fffc0000000200 dead000000000100 dead000000000122 ffff000004c02300 | raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 | page dumped because: kasan: bad access detected | | Memory state around the buggy address: | ffff000007360300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb | ffff000007360380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc | >ffff000007360400: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc | ^ | ffff000007360480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc | ffff000007360500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb | ================================================================== Link: https://lore.kernel.org/r/4d0c8318-bad8-2be7-e292-fc8f70c198de@samsung.com Link: https://lore.kernel.org/linux-arm-kernel/20210607151740.moncryl5zv3ahq4s@gilmour Signed-off-by: Mark Rutland <mark.rutland@arm.com> Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: Emma Anholt <emma@anholt.net> Cc: Maxime Ripard <maxime@cerno.tech> Cc: Will Deacon <will@kernel.org> Cc: dri-devel@lists.freedesktop.org Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20210608085513.2069-1-mark.rutland@arm.com
2021-06-08Merge tag 'asoc-fix-v5.13-rc4' of ↵Takashi Iwai
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v5.13 A collection of fixes and device ID updates that have come up in the past few -rcs, none of which stand out particularly.
2021-06-08x86/ioremap: Map EFI-reserved memory as encrypted for SEVTom Lendacky
Some drivers require memory that is marked as EFI boot services data. In order for this memory to not be re-used by the kernel after ExitBootServices(), efi_mem_reserve() is used to preserve it by inserting a new EFI memory descriptor and marking it with the EFI_MEMORY_RUNTIME attribute. Under SEV, memory marked with the EFI_MEMORY_RUNTIME attribute needs to be mapped encrypted by Linux, otherwise the kernel might crash at boot like below: EFI Variables Facility v0.08 2004-May-17 general protection fault, probably for non-canonical address 0x3597688770a868b2: 0000 [#1] SMP NOPTI CPU: 13 PID: 1 Comm: swapper/0 Not tainted 5.12.4-2-default #1 openSUSE Tumbleweed Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:efi_mokvar_entry_next [...] Call Trace: efi_mokvar_sysfs_init ? efi_mokvar_table_init do_one_initcall ? __kmalloc kernel_init_freeable ? rest_init kernel_init ret_from_fork Expand the __ioremap_check_other() function to additionally check for this other type of boot data reserved at runtime and indicate that it should be mapped encrypted for an SEV guest. [ bp: Massage commit message. ] Fixes: 58c909022a5a ("efi: Support for MOK variable config table") Reported-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Borislav Petkov <bp@suse.de> Tested-by: Joerg Roedel <jroedel@suse.de> Cc: <stable@vger.kernel.org> # 5.10+ Link: https://lkml.kernel.org/r/20210608095439.12668-2-joro@8bytes.org
2021-06-08media: hantro: IMX8M: add variant for G2/HEVC codecBenjamin Gaignard
Add variant to IMX8M to enable G2/HEVC codec. Define the capabilities for the hardware up to 3840x2160. G2 doesn't have a postprocessor, uses the same clocks and has it own interrupt. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: hantro: Introduce G2/HEVC decoderBenjamin Gaignard
Implement all the logic to get G2 hardware decoding HEVC frames. It supports up level 5.1 HEVC stream. It doesn't support yet 10 bits formats or the scaling feature. Add HANTRO HEVC dedicated control to skip some bits at the beginning of the slice header. That is very specific to this hardware so can't go into uapi structures. Computing the needed value is complex and requires information from the stream that only the userland knows so let it provide the correct value to the driver. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Co-developed-by: Adrian Ratiu <adrian.ratiu@collabora.com> Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com> Co-developed-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: hantro: handle V4L2_PIX_FMT_HEVC_SLICE controlBenjamin Gaignard
Make sure that V4L2_PIX_FMT_HEVC_SLICE is correctly handled by the driver. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: uapi: Add a control for HANTRO driverBenjamin Gaignard
The HEVC HANTRO driver needs to know the number of bits to skip at the beginning of the slice header. That is a hardware specific requirement so create a dedicated control for this purpose. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: hantro: Only use postproc when post processed formats are definedBenjamin Gaignard
If the variant doesn't support postprocessed formats make sure it will be ok. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: hantro: Define HEVC codec profiles and supported featuresBenjamin Gaignard
Define which HEVC profiles (up to level 5.1) and features (no scaling, no 10 bits) are supported by the driver. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: hantro: change hantro_codec_ops run prototype to return errorsBenjamin Gaignard
Change hantro_codec_ops run prototype from 'void' to 'int'. This allows the driver to cancel the job if an error occurs while configuring the hardware. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: hevc: Add decode params controlBenjamin Gaignard
Add decode params control and the associated structure to group all the information that are needed to decode a reference frame as is described in ITU-T Rec. H.265 section "8.3.2 Decoding process for reference picture set". Adapt Cedrus driver to these changes. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: hevc: Add fields and flags for hevc PPSBenjamin Gaignard
Add fields and flags as they are defined in 7.4.3.3.1 "General picture parameter set RBSP semantics of the H.265 ITU specification. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: imon: use DEVICE_ATTR_RW() helper macroZhen Lei
Use DEVICE_ATTR_RW() helper macro instead of DEVICE_ATTR(), which is simpler and more readable. Due to the names of the read and write functions of the sysfs attribute is normalized, there is a natural association. Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: rc: add keymap for Toshiba CT-90405 remoteAlexander Voronov
This is an NEC remote control device shipped with some Toshiba TVs. Signed-off-by: Alexander Voronov <avv.0@ya.ru> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: st_rc: Handle errors of clk_prepare_enable()Evgeny Novikov
Hadle errors of clk_prepare_enable() in st_rc_hardware_init() and its callers. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Evgeny Novikov <novikov@ispras.ru> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: cinergyt2: make properties constSean Young
The dvb_usb_device_properties can be const. This makes it clear that the static can be shared across threads. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: dvd_usb: memory leak in cinergyt2_fe_attachDongliang Mu
When the driver fails to talk with the hardware with dvb_usb_generic_rw, it will return an error to dvb_usb_adapter_frontend_init. However, the driver forgets to free the resource (e.g., struct cinergyt2_fe_state), which leads to a memory leak. Fix this by freeing struct cinergyt2_fe_state when dvb_usb_generic_rw fails in cinergyt2_frontend_attach. backtrace: [<0000000056e17b1a>] kmalloc include/linux/slab.h:552 [inline] [<0000000056e17b1a>] kzalloc include/linux/slab.h:682 [inline] [<0000000056e17b1a>] cinergyt2_fe_attach+0x21/0x80 drivers/media/usb/dvb-usb/cinergyT2-fe.c:271 [<00000000ae0b1711>] cinergyt2_frontend_attach+0x21/0x70 drivers/media/usb/dvb-usb/cinergyT2-core.c:74 [<00000000d0254861>] dvb_usb_adapter_frontend_init+0x11b/0x1b0 drivers/media/usb/dvb-usb/dvb-usb-dvb.c:290 [<0000000002e08ac6>] dvb_usb_adapter_init drivers/media/usb/dvb-usb/dvb-usb-init.c:84 [inline] [<0000000002e08ac6>] dvb_usb_init drivers/media/usb/dvb-usb/dvb-usb-init.c:173 [inline] [<0000000002e08ac6>] dvb_usb_device_init.cold+0x4d0/0x6ae drivers/media/usb/dvb-usb/dvb-usb-init.c:287 Reported-by: syzbot+e1de8986786b3722050e@syzkaller.appspotmail.com Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: cxd2880-spi: Fix some error messagesChristophe JAILLET
Fix some erroneous function names in some error messages. Remove some spurious or useless trailing and leading character in some messages. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: mxl692: make a const array static, makes object smallerColin Ian King
Don't populate the const array fw_hdr on the stack but instead it static. Makes the object code smaller by 5 bytes: Before: text data bss dec hex filename 31948 12072 64 44084 ac34 drivers/media/dvb-frontends/mxl692.o After: text data bss dec hex filename 31879 12136 64 44079 ac2f drivers/media/dvb-frontends/mxl692.o (gcc version 10.3.0) Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: MAINTAINERS: add xisc files to isc driver entryEugen Hristev
Add XISC driver and binding files to the ISC driver entry. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: MAINTAINERS: update ISC driver bindings fileEugen Hristev
ISC driver was converted to yaml. Update maintainers file. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: atmel: atmel-isc: add microchip-xisc driverEugen Hristev
Add driver for the extended variant of the isc, the microchip XISC present on sama7g5 product. [hverkuil: drop MODULE_SUPPORTED_DEVICE, no longer exists] [hverkuil: made isc_sama7g5_config_csc et al static] [hverkuil: made sama7g5_controller_formats et al static] Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: dt-bindings: media: add microchip,xisc device bindingsEugen Hristev
Add bindings for the Microchip eXtended Image Sensor Controller. Based on the atmel,isc.yaml binding. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: dt-bindings: media: atmel-isc: convert to yamlEugen Hristev
Convert the Atmel ISC to yaml binding format. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: atmel: atmel-isc-sama5d2: remove duplicate defineEugen Hristev
Remove a duplicate definition of clock max divider Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: atmel: atmel-isc-base: add support for more formats and additional ↵Eugen Hristev
pipeline modules Add support for additional formats supported by newer pipelines, and for additional pipeline modules. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: atmel: atmel-isc-regs: add additional fields for sama7g5 type pipelineEugen Hristev
Add additional fields for registers present in sama7g5 type pipeline. Extend register masks for additional bits in sama7g5 type pipeline registers. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: atmel: atmel-isc: create an adapt pipeline callback for product specificEugen Hristev
Once the pipeline is set in the base code, create a callback that will adapt the ISC pipeline to each product. Create the adapt_pipeline callback that will be used in this fashion. [hverkuil: made isc_sama5d2_adapt_pipeline static] Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: atmel: atmel-isc: move the formats list into product specific codeEugen Hristev
The list of input and output formats has to be product specific. Move this list into the product specific code. Have pointers to these arrays inside the device struct. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: atmel: atmel-isc: create callback for RLP submodule product specificEugen Hristev
The RLP submodule is a part of the atmel-isc pipeline, and stands for Rounding,Limiting and Packaging. It used to extract specific data from the ISC pipeline. For example if we want to output greyscale 8 bit, we would use limiting to 8 bits, and packaging to Luma component only. Create a product specific callback for initializing the RLP submodule of the pipeline [hverkuil: made isc_sama5d2_config_rlp static] Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08arm64: smccc: Support SMCCC v1.3 SVE register saving hintMark Brown
SMCCC v1.2 requires that all SVE state be preserved over SMC calls which introduces substantial overhead in the common case where there is no SVE state in the registers. To avoid this SMCCC v1.3 introduces a flag which allows the caller to say that there is no state that needs to be preserved in the registers. Make use of this flag, setting it if the SMCCC version indicates support for it and the TIF_ flags indicate that there is no live SVE state in the registers, this avoids placing any constraints on when SMCCC calls can be done or triggering extra saving and reloading of SVE register state in the kernel. This would be straightforward enough except for the rather entertaining inline assembly we use to do SMCCC v1.1 calls to allow us to take advantage of the limited number of registers it clobbers. Deal with this by having a function which we call immediately before issuing the SMCCC call to make our checks and set the flag. Using alternatives the overhead if SVE is supported but not detected at runtime can be reduced to a single NOP. Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210603184118.15090-1-broonie@kernel.org Signed-off-by: Will Deacon <will@kernel.org>
2021-06-08mmc: renesas_sdhi: Fix HS400 on R-Car M3-W+Geert Uytterhoeven
R-Car M3-W ES3.0 is marketed as R-Car M3-W+ (R8A77961), and has its own compatible value "renesas,r8a77961". Hence using soc_device_match() with soc_id = "r8a7796" and revision = "ES3.*" does not actually match running on an R-Car M3-W+ SoC. Fix this by matching with soc_id = "r8a77961" instead. Fixes: a38c078fea0b1393 ("mmc: renesas_sdhi: Avoid bad TAP in HS400") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/ee8af5d631f5331139ffea714539030d97352e93.1622811525.git.geert+renesas@glider.be Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2021-06-08spi: tegra20-slink: Ensure SPI controller reset is deassertedJon Hunter
Commit 4782c0a5dd88 ("clk: tegra: Don't deassert reset on enabling clocks") removed some legacy code for handling resets on Tegra from within the Tegra clock code. This exposed an issue in the Tegra20 slink driver where the SPI controller reset was not being deasserted as needed during probe. This is causing the Tegra30 Cardhu platform to hang on boot. Fix this by ensuring the SPI controller reset is deasserted during probe. Fixes: 4782c0a5dd88 ("clk: tegra: Don't deassert reset on enabling clocks") Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Link: https://lore.kernel.org/r/20210608071518.93037-1-jonathanh@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-08regulator: fan53880: Fix vsel_mask setting for FAN53880_BUCKAxel Lin
According to the datasheet: REGISTER DETAILS − 0x02 BUCK, BUCK_OUT is BIT0 ~ BIT7. So vsel_mask for FAN53880_BUCK should be 0xFF. Fixes: e6dea51e2d41 ("regulator: fan53880: Add initial support") Signed-off-by: Axel Lin <axel.lin@ingics.com> Link: https://lore.kernel.org/r/20210607142907.1599905-1-axel.lin@ingics.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-08regulator: bd71815: Get rid of struct bd71815_pmicAxel Lin
The content of bd71815_regulators is never changed, no need to duplicate it, thus remove descs[BD71815_REGULATOR_CNT]. The *regmap, *dev and *rdev[BD71815_REGULATOR_CNT] are not really needed. The *gps is unused. Thus the struct bd71815_pmic can be removed. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Link: https://lore.kernel.org/r/20210607143002.1600017-1-axel.lin@ingics.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-08regulator: ltc3589: Convert to use regulator_set_ramp_delay_regmapAxel Lin
Use regulator_set_ramp_delay_regmap instead of open-coded LTC3589_LINEAR_REG() no longer call LTC3589_REG() now. Only LTC3589_LINEAR_REG() needs to set go_bit, thus remove go_bit parameter from LTC3589_REG() macro. Signed-off-by: Axel Lin <axel.lin@ingics.com> Link: https://lore.kernel.org/r/20210604115803.1260976-1-axel.lin@ingics.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-08regmap: mdio: Add clause-45 supportSander Vanheule
Modern ethernet phys support the so-called clause-45 register access mode, which allows for register address widths of 16 bit. Also allow for 16-bit register address widths, and return a regmap for clause-45 access in that case. Signed-off-by: Sander Vanheule <sander@svanheule.net> Link: https://lore.kernel.org/r/9cc263e3e7d5865edd90453b4183f1cf363cb636.1622743333.git.sander@svanheule.net Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-08regmap: mdio: Clean up invalid clause-22 addressesSander Vanheule
Currently a regmap configuration for regmap-mdio must have a register address width of 5 bits (cf. clause-22 register access). This is not enforced on the provided register addresses, which would enable clause-45 MDIO bus access, if the right bit packing is used. Prevent clause-45 access, and other invalid addresses, by masking the provided register address. Signed-off-by: Sander Vanheule <sander@svanheule.net> Link: https://lore.kernel.org/r/f7013f67e6d6ff56ec98660f18320f6ffcc1a777.1622743333.git.sander@svanheule.net Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-08mmc: renesas_sdhi: abort tuning when timeout detectedWolfram Sang
We have to bring the eMMC from sending-data state back to transfer state once we detected a CRC error (timeout) during tuning. So, send a stop command via mmc_abort_tuning(). Fixes: 4f11997773b6 ("mmc: tmio: Add tuning support") Reported-by Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/20210602073435.5955-1-wsa+renesas@sang-engineering.com Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2021-06-08media: atmel: atmel-isc: create callback for GAM submodule product specificEugen Hristev
The GAM submodule is a part of the atmel-isc pipeline, and stands for Gamma Correction. It is used to apply the gamma curve to the incoming pixels. Create a product specific callback for initializing the GAM submodule of the pipeline. For sama5d2 product, there is no special configuration at this moment, thus this function is a noop. [hverkuil: made isc_sama5d2_config_gam static] Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: atmel: atmel-isc: create callback for DPC submodule product specificEugen Hristev
The DPC submodule is a part of the atmel-isc pipeline, and stands for Defective Pixel Correction. Its purpose is to detect defective pixels and correct them if possible with the help of adjacent pixels. Create a product specific callback for initializing the DPC submodule of the pipeline. For sama5d2 product, this module does not exist, thus this function is a noop. [hverkuil: made isc_sama5d2_config_dpc static] Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: atmel: atmel-isc: create product specific v4l2 controls configEugen Hristev
Create product specific callback for initializing v4l2 controls. Call this from v4l2 controls init function. [hverkuil: made isc_sama5d2_config_ctrls static] Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: atmel: atmel-isc: add CC initialization functionEugen Hristev
The CC submodule is a part of the atmel-isc pipeline, and stands for Color Correction. It is used to apply gains and offsets to the chroma (U, V) components of the YUV elements. Implement the CC submodule initialization, as a product specific function, which currently configures the neutral point in color correction. [hverkuil: made isc_sama5d2_config_cc static] Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: atmel: atmel-isc: extend pipeline with extra modulesEugen Hristev
Newer ISC pipelines have the additional modules of Defective Pixel Correction -> DPC itself, Defective Pixel Correction -> Green Disparity Correction (DPC_GDC) Defective Pixel Correction -> Black Level Correction (DPC_BLC) Vertical and Horizontal Scaler -> VHXS Some products have this full pipeline (sama7g5), other products do not (sama5d2) Add the modules to the isc base, and also extend the register range to include the modules. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08media: atmel: atmel-isc: add register description for additional modulesEugen Hristev
Add register description for additional pipeline modules: the Defective Pixel Correction (DPC) and the Vertical and Horizontal Scaler(VHXS) Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-06-08Makefile: fix GDB warning with CONFIG_RELRNick Desaulniers
GDB produces the following warning when debugging kernels built with CONFIG_RELR: BFD: /android0/linux-next/vmlinux: unknown type [0x13] section `.relr.dyn' when loading a kernel built with CONFIG_RELR into GDB. It can also prevent debugging symbols using such relocations. Peter sugguests: [That flag] means that lld will use dynamic tags and section type numbers in the OS-specific range rather than the generic range. The kernel itself doesn't care about these numbers; it determines the location of the RELR section using symbols defined by a linker script. Link: https://github.com/ClangBuiltLinux/linux/issues/1057 Suggested-by: Peter Collingbourne <pcc@google.com> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Link: https://lore.kernel.org/r/20210522012626.2811297-1-ndesaulniers@google.com Signed-off-by: Will Deacon <will@kernel.org>
2021-06-08ALSA: hda/realtek: fix mute/micmute LEDs for HP ZBook Power G8Jeremy Szu
The HP ZBook Power G8 using ALC236 codec which using 0x02 to control mute LED and 0x01 to control micmute LED. Therefore, add a quirk to make it works. Signed-off-by: Jeremy Szu <jeremy.szu@canonical.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210608114750.32009-1-jeremy.szu@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-06-08ALSA: hda/realtek: headphone and mic don't work on an Acer laptopHui Wang
There are 2 issues on this machine, the 1st one is mic's plug/unplug can't be detected, that is because the mic is set to manual detecting mode, need to apply ALC255_FIXUP_XIAOMI_HEADSET_MIC to set it to auto detecting mode. The other one is headphone's plug/unplug can't be detected by pulseaudio, that is because the pulseaudio will use ucm2/sof-hda-dsp on this machine, and the ucm2 only handle 'Headphone Jack', but on this machine the headphone's pincfg sets the location to Front, then the alsa mixer name is "Front Headphone Jack" instead of "Headphone Jack", so override the pincfg to change location to Left. BugLink: http://bugs.launchpad.net/bugs/1930188 Cc: <stable@vger.kernel.org> Signed-off-by: Hui Wang <hui.wang@canonical.com> Link: https://lore.kernel.org/r/20210608024600.6198-1-hui.wang@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de>