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* media: imx7-media-csi: Check the return value from clk_prepare_enable()Fabio Estevam2019-05-281-4/+10
| | | | | | | | | | | clk_prepare_enable() may fail, so we should better check its return value and propagate it in the case of error. Signed-off-by: Fabio Estevam <festevam@gmail.com> Tested-by: Rui Miguel Silva <rmfrfs@gmail.com> Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: imx7-media-csi: Remove unneeded breakFabio Estevam2019-05-281-1/+0
| | | | | | | | | | | Remove unneeded 'break' right after the 'return' statement as pointed out by checkpatch. Signed-off-by: Fabio Estevam <festevam@gmail.com> Tested-by: Rui Miguel Silva <rmfrfs@gmail.com> Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: imx7-media-csi: Propagate the correct error for devm_request_irq()Fabio Estevam2019-05-281-1/+0
| | | | | | | | | | | In the case of devm_request_irq() failure, let's propagate the real error code instead of a fake one. Signed-off-by: Fabio Estevam <festevam@gmail.com> Tested-by: Rui Miguel Silva <rmfrfs@gmail.com> Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: imx7-media-csi: Propagate the correct error for platform_get_irq()Fabio Estevam2019-05-281-1/+1
| | | | | | | | | | | In the case of platform_get_irq() failure, let's propagate the real error code instead of a fake one. Signed-off-by: Fabio Estevam <festevam@gmail.com> Tested-by: Rui Miguel Silva <rmfrfs@gmail.com> Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: imx7-media-csi: Use devm_platform_ioremap_resource()Fabio Estevam2019-05-281-5/+3
| | | | | | | | | | | | | Use devm_platform_ioremap_resource() to simplify the code a bit. While at it, propagate the real error value in case of devm_platform_ioremap_resource() failure. Signed-off-by: Fabio Estevam <festevam@gmail.com> Tested-by: Rui Miguel Silva <rmfrfs@gmail.com> Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: imx7-media-csi: Acquire a single clockFabio Estevam2019-05-281-43/+8
| | | | | | | | | | | As per the i.MX7D Reference Manual only the MCLK is used for the CSI block, so only handle this single clock. Signed-off-by: Fabio Estevam <festevam@gmail.com> Tested-by: Rui Miguel Silva <rmfrfs@gmail.com> Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: staging/imx: Don't set driver data for v4l2_devSteve Longerbeam2019-05-282-7/+5
| | | | | | | | | | | | | | The media device is already available via multiple methods, there is no need to set driver data for v4l2_dev to the media device. In imx_media_link_notify(), get media device from link->graph_obj.mdev. In imx_media_capture_device_register(), get media device from v4l2_dev->mdev. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: staging/imx: Improve pipeline searchingSteve Longerbeam2019-05-2810-93/+93
| | | | | | | | | | | | | | | | | | | | | | | | | | | Export find_pipeline_pad(), renaming to imx_media_pipeline_pad(), and extend its functionality to allow searching for video devices in the enabled pipeline in addition to sub-devices. As part of this: - Rename imx_media_find_mipi_csi2_channel() to imx_media_pipeline_csi2_channel(). - Remove imx_media_find_upstream_pad(), it is redundant now. - Rename imx_media_find_upstream_subdev() to imx_media_pipeline_subdev() with an additional boolean argument for searching upstream or downstream. - Add imx_media_pipeline_video_device() which is analogous to imx_media_pipeline_subdev() but searches for video devices. - Remove imxmd pointer arg from all of the functions above, it was never used in those functions. With that change the i.MX5/6 CSI, VDIC, and IC sub-devices no longer require the media_device. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: staging/imx: Re-organize modulesSteve Longerbeam2019-05-287-358/+369
| | | | | | | | | | | | | | | | | | | | | | Re-organize modules, and which objects are linked into those modules, so that: - imx6-media (renamed from imx-media) is the media driver module for imx5/6 only, and has no symbol exports. - imx6-media-csi (renamed from imx-media-csi) is the subdev driver module for imx5/6 CSI. It is now linked direcly with imx-media-fim, since only the imx5/6 CSI makes use of the frame interval monitor. - imx-media-common now only contains common code between imx5/6 and imx7 media drivers. It contains imx-media-utils, imx-media-of, imx-media-dev-common, and imx-media-capture. In order to acheive that, some functions common to imx5/6 and imx7 have been moved out of imx-media-dev.c and into imx-media-dev-common.c. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: staging/imx: Remove capture_device_set_formatSteve Longerbeam2019-05-285-67/+55
| | | | | | | | | | | | Don't propagate the source pad format to the connected capture device. It's now the responsibility of userspace to call VIDIOC_S_FMT on the capture device to ensure the capture format and compose rectangle are compatible with the connected source. To check this, validate the capture format with the source before streaming starts. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: Revert "media: imx: Set capture compose rectangle in ↵Steve Longerbeam2019-05-286-40/+25
| | | | | | | | | | | | | | | capture_device_set_format" Revert this commit, as imx_media_capture_device_set_format() will be removed. The arguments to mx_media_mbus_fmt_to_pix_fmt() and imx_media_capture_device_set_format() in imx7_csi_set_fmt() are also reverted. This reverts commit 5964cbd8692252615370b77eb96764dd70c2f837. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: staging/imx: Move add_video_device into capture_device_registerSteve Longerbeam2019-05-286-29/+11
| | | | | | | | | Move imx_media_add_video_device() into imx_media_capture_device_register(). Also the former has no error conditions to convert to void. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: staging/imx: Pass device to alloc/free_dma_bufSteve Longerbeam2019-05-285-23/+22
| | | | | | | | | | | Allocate and free a DMA coherent buffer in imx_media_alloc/free_dma_buf() from the given device. This allows DMA alloc and free using a device that is backed by real hardware, which for the imx5/6/7 CSI is the CSI unit, and for the internal IPU sub-devices, is the parent IPU. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: staging/imx: Switch to sync registration for IPU subdevsSteve Longerbeam2019-05-2813-539/+327
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because the IPU sub-devices VDIC and IC are not present in the device-tree, platform devices were created for them instead. This allowed these sub-devices to be added to the media device's async notifier and registered asynchronously along with the other sub-devices that do have a device-tree presence (CSI and devices external to the IPU and SoC). But that approach isn't really necessary. The IPU sub-devices don't actually require a backing device (sd->dev is allowed to be NULL). And that approach can't get around the fact that the IPU sub-devices are not part of a device hierarchy, which makes it awkward to retrieve the parent IPU of these devices. By registering them synchronously, they can be registered from the CSI async bound notifier, so the init function for them can be given the CSI subdev, who's dev->parent is the IPU. That is a somewhat cleaner way to retrieve the parent IPU. So convert to synchronous registration for the VDIC and IC task sub-devices, at the time a CSI sub-device is bound. There is no longer a backing device for them (sd->dev is NULL), but that's ok. Also set the VDIC/IC sub-device owner as the IPU, so that a reference can be taken on the IPU module. Since the VDIC and IC task drivers are no longer platform drivers, they are now statically linked to imx-media module. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: Revert "media: staging/imx: add media device to capture register"Steve Longerbeam2019-05-285-8/+7
| | | | | | | | | | | | The imx6-specific subdevs that register a capture device will no longer hold a reference to the media device, so this commit must be reverted. This reverts commit 16204b8a1c1af77725533b77936e6c73953486ae. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: v4l2-pci-skeleton.c: fix doc warningHans Verkuil2019-05-281-0/+1
| | | | | | | | | Document the 'field' field to fix this warning: samples/v4l/v4l2-pci-skeleton.c:80: warning: Function parameter or member 'field' not described in 'skeleton' Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: usb:zr364xx:Fix KASAN:null-ptr-deref Read in zr364xx_vidioc_querycapVandana BN2019-05-281-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SyzKaller hit the null pointer deref while reading from uninitialized udev->product in zr364xx_vidioc_querycap(). ================================================================== BUG: KASAN: null-ptr-deref in read_word_at_a_time+0xe/0x20 include/linux/compiler.h:274 Read of size 1 at addr 0000000000000000 by task v4l_id/5287 CPU: 1 PID: 5287 Comm: v4l_id Not tainted 5.1.0-rc3-319004-g43151d6 #6 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xe8/0x16e lib/dump_stack.c:113 kasan_report.cold+0x5/0x3c mm/kasan/report.c:321 read_word_at_a_time+0xe/0x20 include/linux/compiler.h:274 strscpy+0x8a/0x280 lib/string.c:207 zr364xx_vidioc_querycap+0xb5/0x210 drivers/media/usb/zr364xx/zr364xx.c:706 v4l_querycap+0x12b/0x340 drivers/media/v4l2-core/v4l2-ioctl.c:1062 __video_do_ioctl+0x5bb/0xb40 drivers/media/v4l2-core/v4l2-ioctl.c:2874 video_usercopy+0x44e/0xf00 drivers/media/v4l2-core/v4l2-ioctl.c:3056 v4l2_ioctl+0x14e/0x1a0 drivers/media/v4l2-core/v4l2-dev.c:364 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xced/0x12f0 fs/ioctl.c:696 ksys_ioctl+0xa0/0xc0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x74/0xb0 fs/ioctl.c:718 do_syscall_64+0xcf/0x4f0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f3b56d8b347 Code: 90 90 90 48 8b 05 f1 fa 2a 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 90 90 90 90 90 90 90 90 90 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 fa 2a 00 31 d2 48 29 c2 64 RSP: 002b:00007ffe005d5d68 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3b56d8b347 RDX: 00007ffe005d5d70 RSI: 0000000080685600 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000400884 R13: 00007ffe005d5ec0 R14: 0000000000000000 R15: 0000000000000000 ================================================================== For this device udev->product is not initialized and accessing it causes a NULL pointer deref. The fix is to check for NULL before strscpy() and copy empty string, if product is NULL Reported-by: syzbot+66010012fd4c531a1a96@syzkaller.appspotmail.com Signed-off-by: Vandana BN <bnvandana@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: staging: media: imx: fix Unneeded variable: "ret". Return "0"Hariprasad Kelam2019-05-281-2/+1
| | | | | | | | | | | | fix below warning reported by coccichec drivers/staging/media/imx/imx-media-capture.c:617:5-8: Unneeded variable: "ret". Return "0" on line 630 Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: vimc: Remove unneeded return statement in vimc_sen_s_stream()Niklas Söderlund2019-05-281-1/+0
| | | | | | | | | | | The other subdevice implementations in vimc (debayer and scaler) which share their code structure with the sensor do not have an explicit return statement at the end of the s_stream(0) code path. Align the sensor subdevice by dropping the return statement. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: vimc: fix component match compareHelen Koike2019-05-281-5/+2
| | | | | | | | | | | | | | | | | | | | | | If the system has other devices being registered in the component framework, the compare function will be called with a device that doesn't belong to vimc. This device is not necessarily a platform_device, nor have a platform_data (which causes a NULL pointer dereference error) and if it does have a pdata, it is not necessarily type of struct vimc_platform_data. So casting to any of these types is wrong. Instead of expecting a given pdev with a given pdata, just expect for the device it self. vimc-core is the one who creates them, we know in advance exactly which object to expect in the match. Fixes: 4a29b7090749 ("[media] vimc: Subdevices as modules") Signed-off-by: Helen Koike <helen.koike@collabora.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Tested-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: v4l2-core: fix use-after-free errorsumitg2019-05-281-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixing use-after-free within __v4l2_ctrl_handler_setup(). Memory is being freed with kfree(new_ref) for duplicate control reference entry but ctrl->cluster pointer is still referring to freed duplicate entry resulting in error on access. Change done to update cluster pointer only when new control reference is added. ================================================================== BUG: KASAN: use-after-free in __v4l2_ctrl_handler_setup+0x388/0x428 Read of size 8 at addr ffffffc324e78618 by task systemd-udevd/312 Allocated by task 312: Freed by task 312: The buggy address belongs to the object at ffffffc324e78600 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 24 bytes inside of 64-byte region [ffffffc324e78600, ffffffc324e78640) The buggy address belongs to the page: page:ffffffbf0c939e00 count:1 mapcount:0 mapping: (null) index:0xffffffc324e78f80 flags: 0x4000000000000100(slab) raw: 4000000000000100 0000000000000000 ffffffc324e78f80 000000018020001a raw: 0000000000000000 0000000100000001 ffffffc37040fb80 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffffffc324e78500: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffffffc324e78580: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc >ffffffc324e78600: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ^ ffffffc324e78680: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc ffffffc324e78700: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc ================================================================== Suggested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Sumit Gupta <sumitg@nvidia.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: rcar-csi2: Fix coccinelle warning for PTR_ERR_OR_ZERO()Niklas Söderlund2019-05-281-3/+1
| | | | | | | | | | | | | | | | | | | Use the PTR_ERR_OR_ZERO() macro instead of construct: if (IS_ERR(foo)) return PTR_ERR(foo); return 0; Fixes: 3ae854cafd76 ("rcar-csi2: Use standby mode instead of resetting") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: vim2m: fix two double-free issuesKefeng Wang2019-05-281-3/+3
| | | | | | | | | | | | | | | | | | vim2m_device_release() will be called by video_unregister_device() to release various objects. There are two double-free issue, 1. dev->m2m_dev will be freed twice in error_m2m path/vim2m_device_release 2. the error_v4l2 and error_free path in vim2m_probe() will release same objects, since vim2m_device_release has done. Fixes: ea6c7e34f3b2 ("media: vim2m: replace devm_kzalloc by kzalloc") Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: pwc: convert to BIT macroOliver Neukum2019-05-281-9/+9
| | | | | | | | This converts the driver to using the BIT macro to increase readability Signed-off-by: Oliver Neukum <oneukum@suse.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: cpia2_usb: first wake up, then free in disconnectOliver Neukum2019-05-281-1/+2
| | | | | | | | | | | | | Kasan reported a use after free in cpia2_usb_disconnect() It first freed everything and then woke up those waiting. The reverse order is correct. Fixes: 6c493f8b28c67 ("[media] cpia2: major overhaul to get it in a working state again") Signed-off-by: Oliver Neukum <oneukum@suse.com> Reported-by: syzbot+0c90fc937c84f97d0aa6@syzkaller.appspotmail.com Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: docs-rst: Clarify older field vs. first transmitted fieldSteve Longerbeam2019-05-281-6/+11
| | | | | | | | | | | Add a paragraph to make it more clear that video equipment will transmit fields in the same order the fields were captured, and replace some of the "is transmitted first" language with "is the older field", since the latter is the important info for motion compensation applications. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: vicodec: correctly support unbinding of the driverHans Verkuil2019-05-281-5/+18
| | | | | | | | | | Unbinding the driver while streaming caused the driver to hang. The cause of this was failing to use the v4l2_device release function and the use of devm_kmalloc for the state structure. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: v4l2: Initialize mpeg slice controlsBoris Brezillon2019-05-281-1/+19
| | | | | | | | Make sure the default value at least passes the std_validate() tests. Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: coda: Clear the interrupt reasonEzequiel Garcia2019-05-281-0/+1
| | | | | | | | | | | | | | | | | | | | This commit clears the interrupt reason (INT_REASON) register on the interrupt handler. Without this clearing, the CODA hardware has been observed to get completely stalled on CODA980 variants, requiring a pretty deep hardware reset. The datasheet specifies that the INT_REASON register is set by the CODA hardware, and should be cleared by the host. While the CODA versions that are currently supported by this driver don't seem to need this change, it's a really small change, so it seems a wise thing to do to avoid hitting some rare race-condition in the hardware. Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: coda: Replace the threaded interrupt with a hard interruptEzequiel Garcia2019-05-281-2/+2
| | | | | | | | | | | | | | | The current interrupt handler is doing very little, and not doing any non-atomic operations. Pretty much all it does is accessing a couple registers, taking a couple spinlocks and then signalling a completion. There is no reason this should be a threaded interrupt handler, so move the handler to regular hard interrupt context. Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: coda: Remove unbalanced and unneeded mutex unlockEzequiel Garcia2019-05-281-1/+0
| | | | | | | | | | | | | | The mutex unlock in the threaded interrupt handler is not paired with any mutex lock. Remove it. This bug has been here for a really long time, so it applies to any stable repo. Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Cc: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: coda: Print a nicer device registered messageEzequiel Garcia2019-05-281-4/+9
| | | | | | | | | | | | | | | | | | | This is just a cosmetic change to print a more descriptive message, to distinguish decoder from encoder: So, instead of printing coda 2040000.vpu: codec registered as /dev/video[4-5] With this change, the driver now prints coda 2040000.vpu: encoder registered as /dev/video4 coda 2040000.vpu: decoder registered as /dev/video5 Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: pvrusb2: use a different format for warningsAndrey Konovalov2019-05-283-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | When the pvrusb2 driver detects that there's something wrong with the device, it prints a warning message. Right now those message are printed in two different formats: 1. ***WARNING*** message here 2. WARNING: message here There's an issue with the second format. Syzkaller recognizes it as a message produced by a WARN_ON(), which is used to indicate a bug in the kernel. However pvrusb2 prints those warnings to indicate an issue with the device, not the bug in the kernel. This patch changes the pvrusb2 driver to consistently use the first warning message format. This will unblock syzkaller testing of this driver. Reported-by: syzbot+af8f8d2ac0d39b0ed3a0@syzkaller.appspotmail.com Reported-by: syzbot+170a86bf206dd2c6217e@syzkaller.appspotmail.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: move drivers/media/media-* to drivers/media/mc/mc-*Hans Verkuil2019-05-289-44/+46
| | | | | | | | | | | | | | It is really weird that the media controller sources are all top-level in drivers/media. It is a bit of a left-over from long ago when most media sources were all at the top-level. At some point we reorganized the directory structure, but the media-*.c sources where never moved to their own directory. So create a new mc directory and move all sources there. Also rename the prefix from media- to mc-. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: imx7_mipi_csis: fix racy entity pads initRui Miguel Silva2019-05-281-8/+16
| | | | | | | | | | | | | Setting the media entity pads after the async register subdev can be racy with probe complete callback. So, make sure that the media pads are initialized before the probe complete is called. For that move the media entity pads initialization to the registered subdev internal operation. Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: rockchip/vpu: Remove a useless testBoris Brezillon2019-05-281-4/+2
| | | | | | | | | vdev is guaranteed to be equal to vpu->vfd_enc thanks a test done a few lines above. Remove this useless test. Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: rockchip/vpu: Cleanup JPEG bounce buffer managementEzequiel Garcia2019-05-289-29/+84
| | | | | | | | | | | In order to make the code more generic, introduce a pair of start/stop codec operations, and use them to allocate and release the JPEG bounce buffer. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: rockchip/vpu: Cleanup macroblock alignmentEzequiel Garcia2019-05-281-12/+8
| | | | | | | | | | We need to make the macrobock alignment generic, in order to support multiple codecs. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: rockchip/vpu: Use v4l2_m2m_buf_copy_metadataEzequiel Garcia2019-05-281-8/+1
| | | | | | | | | | Use the recently introduced v4l2_m2m_buf_copy_metadata helper and get rid of some code. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: rockchip/vpu: Use pixel format helpersEzequiel Garcia2019-05-281-89/+2
| | | | | | | | | | Now that we've introduced the pixel format helpers, use them in vpu driver, and get rid of the internal helpers. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: coda/venus/s5p_mfc: fix control typoHans Verkuil2019-05-287-11/+16
| | | | | | | | | | | | | | | | These two slice modes used by the V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE control had a silly typo: V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES SICE should be SLICE. Rename these enum values, keeping the old ones (under #ifndef __KERNEL__) for backwards compatibility reasons. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* Merge tag 'v5.2-rc2' into patchworkMauro Carvalho Chehab2019-05-285301-25865/+8155
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge back from upstream into media tree, as there are some patches merged upstream that has pontential of causing conflicts (one actually rised a conflict already). Linux 5.2-rc2 * tag 'v5.2-rc2': (377 commits) Linux 5.2-rc2 random: fix soft lockup when trying to read from an uninitialized blocking pool tracing: Silence GCC 9 array bounds warning ext4: fix dcache lookup of !casefolded directories locking/lock_events: Use this_cpu_add() when necessary KVM: x86: fix return value for reserved EFER tools/kvm_stat: fix fields filter for child events KVM: selftests: Wrap vcpu_nested_state_get/set functions with x86 guard kvm: selftests: aarch64: compile with warnings on kvm: selftests: aarch64: fix default vm mode kvm: selftests: aarch64: dirty_log_test: fix unaligned memslot size KVM: s390: fix memory slot handling for KVM_SET_USER_MEMORY_REGION KVM: x86/pmu: do not mask the value that is written to fixed PMUs KVM: x86/pmu: mask the result of rdpmc according to the width of the counters x86/kvm/pmu: Set AMD's virt PMU version to 1 KVM: x86: do not spam dmesg with VMCS/VMCB dumps kvm: Check irqchip mode before assign irqfd kvm: svm/avic: fix off-by-one in checking host APIC ID KVM: selftests: do not blindly clobber registers in guest asm KVM: selftests: Remove duplicated TEST_ASSERT in hyperv_cpuid.c ...
| * Linux 5.2-rc2v5.2-rc2Linus Torvalds2019-05-261-2/+2
| |
| * Merge tag 'trace-v5.2-rc1-2' of ↵Linus Torvalds2019-05-263-10/+20
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing warning fix from Steven Rostedt: "Make the GCC 9 warning for sub struct memset go away. GCC 9 now warns about calling memset() on partial structures when it goes across multiple fields. This adds a helper for the place in tracing that does this type of clearing of a structure" * tag 'trace-v5.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Silence GCC 9 array bounds warning
| | * tracing: Silence GCC 9 array bounds warningMiguel Ojeda2019-05-253-10/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Starting with GCC 9, -Warray-bounds detects cases when memset is called starting on a member of a struct but the size to be cleared ends up writing over further members. Such a call happens in the trace code to clear, at once, all members after and including `seq` on struct trace_iterator: In function 'memset', inlined from 'ftrace_dump' at kernel/trace/trace.c:8914:3: ./include/linux/string.h:344:9: warning: '__builtin_memset' offset [8505, 8560] from the object at 'iter' is out of the bounds of referenced subobject 'seq' with type 'struct trace_seq' at offset 4368 [-Warray-bounds] 344 | return __builtin_memset(p, c, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In order to avoid GCC complaining about it, we compute the address ourselves by adding the offsetof distance instead of referring directly to the member. Since there are two places doing this clear (trace.c and trace_kdb.c), take the chance to move the workaround into a single place in the internal header. Link: http://lkml.kernel.org/r/20190523124535.GA12931@gmail.com Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> [ Removed unnecessary parenthesis around "iter" ] Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
| * | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2019-05-2644-303/+399
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull KVM fixes from Paolo Bonzini: "The usual smattering of fixes and tunings that came in too late for the merge window, but should not wait four months before they appear in a release. I also travelled a bit more than usual in the first part of May, which didn't help with picking up patches and reports promptly" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (33 commits) KVM: x86: fix return value for reserved EFER tools/kvm_stat: fix fields filter for child events KVM: selftests: Wrap vcpu_nested_state_get/set functions with x86 guard kvm: selftests: aarch64: compile with warnings on kvm: selftests: aarch64: fix default vm mode kvm: selftests: aarch64: dirty_log_test: fix unaligned memslot size KVM: s390: fix memory slot handling for KVM_SET_USER_MEMORY_REGION KVM: x86/pmu: do not mask the value that is written to fixed PMUs KVM: x86/pmu: mask the result of rdpmc according to the width of the counters x86/kvm/pmu: Set AMD's virt PMU version to 1 KVM: x86: do not spam dmesg with VMCS/VMCB dumps kvm: Check irqchip mode before assign irqfd kvm: svm/avic: fix off-by-one in checking host APIC ID KVM: selftests: do not blindly clobber registers in guest asm KVM: selftests: Remove duplicated TEST_ASSERT in hyperv_cpuid.c KVM: LAPIC: Expose per-vCPU timer_advance_ns to userspace KVM: LAPIC: Fix lapic_timer_advance_ns parameter overflow kvm: vmx: Fix -Wmissing-prototypes warnings KVM: nVMX: Fix using __this_cpu_read() in preemptible context kvm: fix compilation on s390 ...
| | * | KVM: x86: fix return value for reserved EFERPaolo Bonzini2019-05-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 11988499e62b ("KVM: x86: Skip EFER vs. guest CPUID checks for host-initiated writes", 2019-04-02) introduced a "return false" in a function returning int, and anyway set_efer has a "nonzero on error" conventon so it should be returning 1. Reported-by: Pavel Machek <pavel@denx.de> Fixes: 11988499e62b ("KVM: x86: Skip EFER vs. guest CPUID checks for host-initiated writes") Cc: Sean Christopherson <sean.j.christopherson@intel.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| | * | tools/kvm_stat: fix fields filter for child eventsStefan Raspl2019-05-242-4/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The fields filter would not work with child fields, as the respective parents would not be included. No parents displayed == no childs displayed. To reproduce, run on s390 (would work on other platforms, too, but would require a different filter name): - Run 'kvm_stat -d' - Press 'f' - Enter 'instruct' Notice that events like instruction_diag_44 or instruction_diag_500 are not displayed - the output remains empty. With this patch, we will filter by matching events and their parents. However, consider the following example where we filter by instruction_diag_44: kvm statistics - summary regex filter: instruction_diag_44 Event Total %Total CurAvg/s exit_instruction 276 100.0 12 instruction_diag_44 256 92.8 11 Total 276 12 Note that the parent ('exit_instruction') displays the total events, but the childs listed do not match its total (256 instead of 276). This is intended (since we're filtering all but one child), but might be confusing on first sight. Signed-off-by: Stefan Raspl <raspl@linux.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| | * | KVM: selftests: Wrap vcpu_nested_state_get/set functions with x86 guardThomas Huth2019-05-242-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | struct kvm_nested_state is only available on x86 so far. To be able to compile the code on other architectures as well, we need to wrap the related code with #ifdefs. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| | * | kvm: selftests: aarch64: compile with warnings onAndrew Jones2019-05-241-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | aarch64 fixups needed to compile with warnings as errors. Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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