summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2018-03-22net: Convert nf_ct_net_opsKirill Tkhai
These pernet_operations register and unregister sysctl. Also, there is inet_frags_exit_net() called in exit method, which has to be safe after a560002437d3 "net: Fix hlist corruptions in inet_evict_bucket()". Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-22net: Convert lowpan_frags_opsKirill Tkhai
These pernet_operations register and unregister sysctl. Also, there is inet_frags_exit_net() called in exit method, which has to be safe after a560002437d3 "net: Fix hlist corruptions in inet_evict_bucket()". Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-22net: Convert can_pernet_opsKirill Tkhai
These pernet_operations create and destroy /proc entries and cancel per-net timer. Also, there are unneed iterations over empty list of net devices, since all net devices must be already moved to init_net or unregistered by default_device_ops. This already was mentioned here: https://marc.info/?l=linux-can&m=150169589119335&w=2 So, it looks safe to make them async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-22drm/tegra: dc: Use correct format array for Tegra124Stefan Agner
Use tegra124_(primary|overlay)_formats for Tegra124, otherwise the count specified in the Tegra124 SoC info structure will be different from the array size and cause a crash. Fixes: 511c7023cf23 ("drm/tegra: dc: Support more formats") Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-03-22media: imx-media-utils: fix a warningMauro Carvalho Chehab
The logic at find_format() is a little bit confusing even for humans, and it tricks static code analyzers: drivers/staging/media/imx/imx-media-utils.c:259 find_format() error: buffer overflow 'array' 14 <= 20 Rewrite the logic in a way that it makes it clearer to understand, while prevent static analyzers to produce false positives. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: dvbdev: handle ENOMEM error at dvb_module_probe()Mauro Carvalho Chehab
If allocation of struct board_info fails, return NULL from dvb_module_probe(). Fix this warning: drivers/media/dvb-core/dvbdev.c:958 dvb_module_probe() error: potential null dereference 'board_info'. (kzalloc returns null) Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: debugfs-cec-error-inj: document CEC error inj debugfs ABIHans Verkuil
Document the core of the debugfs CEC error injection ABI. The driver specific commands are documented elsewhere and this file points to that documentation. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: cec-pin-error-inj.rst: document CEC Pin Error InjectionHans Verkuil
The CEC Pin framework adds support for Error Injection. Document all the error injections commands and how to use it. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22netfilter: nf_tables: do not hold reference on netdevice from preparation phasePablo Neira Ayuso
The netfilter netdevice event handler hold the nfnl_lock mutex, this avoids races with a device going away while such device is being attached to hooks from the netlink control plane. Therefore, either control plane bails out with ENOENT or netdevice event path waits until the hook that is attached to net_device is registered. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-03-22media: cec: improve CEC pin event handlingHans Verkuil
It turns out that the struct cec_fh event buffer size of 64 events (64 for CEC_EVENT_PIN_CEC_LOW and 64 for _HIGH) is too small. It's about 160 ms worth of events and if the Raspberry Pi is busy, then it might take too long for the application to be scheduled so that it can drain the pending events. Increase these buffers to 800 events which is at least 2 seconds worth of events. There is also a FIFO in between the interrupt and the cec-pin thread. The thread passes the events on to the CEC core. It is important that should this FIFO fill up the cec core will be informed that events have been lost so this can be communicated to the user by setting CEC_EVENT_FL_DROPPED_EVENTS. It is very hard to debug CEC problems if events were lost without informing the user of that fact. If events were dropped due to the FIFO filling up, then the debugfs status file will let you know how many events were dropped. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: cec-pin: improve status logHans Verkuil
Keep track of the number of short or long start bits, the number of short or long data bits and the number of initiated or detected low drive conditions. Show this information in the status debugfs log. Helpful when debugging, particularly when doing error injection as well. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: cec-pin: add error injection supportHans Verkuil
Implement all the error injection commands. The state machine gets new states for the various error situations, helper functions are added to detect whether an error injection is active and the actual error injections are implemented. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: cec-pin-error-inj: parse/show error injectionHans Verkuil
Add support to the CEC Pin framework to parse error injection commands and to show them. The next patch will do the actual implementation of this. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: cec-pin: create cec_pin_start_timer() functionHans Verkuil
This function will be needed for injecting a custom pulse. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: cec-core.rst: document the error injection opsHans Verkuil
Document the new core error injection callbacks. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: cec: add core error injection supportHans Verkuil
Add two new ops (error_inj_show and error_inj_parse_line) to support error injection functionality for CEC adapters. If both are present, then the core will add a new error-inj debugfs file that can be used to see the current error injection commands and to set error injection commands. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: rc docs: fix warning for RC_PROTO_IMONSean Young
This protocol was recently added and causes warnings. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22netfilter: nf_tables: cache device name in flowtable objectPablo Neira Ayuso
Devices going away have to grab the nfnl_lock from the netdev event path to avoid races with control plane updates. However, netlink dumps in netfilter do not hold nfnl_lock mutex. Cache the device name into the objects to avoid an use-after-free situation for a device that is going away. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-03-22netfilter: drop template ct when conntrack is skipped.Paolo Abeni
The ipv4 nf_ct code currently skips the nf_conntrak_in() call for fragmented packets. As a results later matches/target can end up manipulating template ct entry instead of 'real' ones. Exploiting the above, syzbot found a way to trigger the following splat: WARNING: CPU: 1 PID: 4242 at net/netfilter/xt_cluster.c:55 xt_cluster_mt+0x6c1/0x840 net/netfilter/xt_cluster.c:127 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 4242 Comm: syzkaller027971 Not tainted 4.16.0-rc2+ #243 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x24d lib/dump_stack.c:53 panic+0x1e4/0x41c kernel/panic.c:183 __warn+0x1dc/0x200 kernel/panic.c:547 report_bug+0x211/0x2d0 lib/bug.c:184 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178 fixup_bug arch/x86/kernel/traps.c:247 [inline] do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x58/0x80 arch/x86/entry/entry_64.S:957 RIP: 0010:xt_cluster_hash net/netfilter/xt_cluster.c:55 [inline] RIP: 0010:xt_cluster_mt+0x6c1/0x840 net/netfilter/xt_cluster.c:127 RSP: 0018:ffff8801d2f6f2d0 EFLAGS: 00010293 RAX: ffff8801af700540 RBX: 0000000000000000 RCX: ffffffff84a2d1e1 RDX: 0000000000000000 RSI: ffff8801d2f6f478 RDI: ffff8801cafd336a RBP: ffff8801d2f6f2e8 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801b03b3d18 R13: ffff8801cafd3300 R14: dffffc0000000000 R15: ffff8801d2f6f478 ipt_do_table+0xa91/0x19b0 net/ipv4/netfilter/ip_tables.c:296 iptable_filter_hook+0x65/0x80 net/ipv4/netfilter/iptable_filter.c:41 nf_hook_entry_hookfn include/linux/netfilter.h:120 [inline] nf_hook_slow+0xba/0x1a0 net/netfilter/core.c:483 nf_hook include/linux/netfilter.h:243 [inline] NF_HOOK include/linux/netfilter.h:286 [inline] raw_send_hdrinc.isra.17+0xf39/0x1880 net/ipv4/raw.c:432 raw_sendmsg+0x14cd/0x26b0 net/ipv4/raw.c:669 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:763 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xca/0x110 net/socket.c:639 SYSC_sendto+0x361/0x5c0 net/socket.c:1748 SyS_sendto+0x40/0x50 net/socket.c:1716 do_syscall_64+0x280/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x441b49 RSP: 002b:00007ffff5ca8b18 EFLAGS: 00000216 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000441b49 RDX: 0000000000000030 RSI: 0000000020ff7000 RDI: 0000000000000003 RBP: 00000000006cc018 R08: 000000002066354c R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000216 R12: 0000000000403470 R13: 0000000000403500 R14: 0000000000000000 R15: 0000000000000000 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds.. Instead of adding checks for template ct on every target/match manipulating skb->_nfct, simply drop the template ct when skipping nf_conntrack_in(). Fixes: 7b4fdf77a450ec ("netfilter: don't track fragmented packets") Reported-and-tested-by: syzbot+0346441ae0545cfcea3a@syzkaller.appspotmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2018-03-22posix-timers: Protect posix clock array access against speculationThomas Gleixner
The clockid argument of clockid_to_kclock() comes straight from user space via various syscalls and is used as index into the posix_clocks array. Protect it against spectre v1 array out of bounds speculation. Remove the redundant check for !posix_clock[id] as this is another source for speculation and does not provide any advantage over the return posix_clock[id] path which returns NULL in that case anyway. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Dan Williams <dan.j.williams@intel.com> Cc: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: stable@vger.kernel.org Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: David Woodhouse <dwmw@amazon.co.uk> Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1802151718320.1296@nanos.tec.linutronix.de
2018-03-22media: s5p_mfc_enc: get rid of new warningsMauro Carvalho Chehab
The values of enc_y_addr and enc_c_addr are initialized by s5p_mfc_hw_call(), but, in thesis, this macro might be doing nothing, if the get_enc_frame_buffer() is not declared. That causes those GCC warnings: drivers/media/platform/s5p-mfc/s5p_mfc_enc.c:1242 enc_post_frame_start() error: uninitialized symbol 'enc_y_addr'. drivers/media/platform/s5p-mfc/s5p_mfc_enc.c:1243 enc_post_frame_start() error: uninitialized symbol 'enc_c_addr'. drivers/media/platform/s5p-mfc/s5p_mfc_enc.c:1256 enc_post_frame_start() error: uninitialized symbol 'enc_y_addr'. drivers/media/platform/s5p-mfc/s5p_mfc_enc.c:1257 enc_post_frame_start() error: uninitialized symbol 'enc_c_addr'. Change the logic by initializing those constants to zero, with should hopefully do the right thing. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: s5p-mfc: Amend initial min, max values of HEVC hierarchical coding QP ↵Sylwester Nawrocki
controls Valid range for those controls is specified in documentation as [0, 51], so initialize the controls to such range rather than [INT_MIN, INT_MAX]. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: s5p-mfc: Ensure HEVC QP controls range is properly updatedSylwester Nawrocki
When value of V4L2_CID_MPEG_VIDEO_HEVC_MIN_QP or V4L2_CID_MPEG_VIDEO_HEVC_MAX_QP controls is changed we should update range of a set of HEVC quantization parameter v4l2 controls as specified in the HEVC controls documentation. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: s5p-mfc: Use real device for request_firmware() callMarek Szyprowski
Provide proper (real) struct device to request_firmware() call. This fixes following error messages: (NULL device *): Direct firmware load for s5p-mfc-v6-v2.fw failed with error -2 (NULL device *): Direct firmware load for s5p-mfc-v6.fw failed with error -2 into a bit more meaningful ones: s5p-mfc 11000000.codec: Direct firmware load for s5p-mfc-v6-v2.fw failed with error -2 s5p-mfc 11000000.codec: Direct firmware load for s5p-mfc-v6.fw failed with error -2 Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: s5p-mfc: Add support for HEVC encoderSmitha T Murthy
Add HEVC encoder support and necessary registers, V4L2 CIDs, and hevc encoder parameters Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: s5p-mfc: Add VP9 decoder supportSmitha T Murthy
Add support for codec definition and corresponding buffer requirements for VP9 decoder. Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: s5p-mfc: Add support for HEVC decoderSmitha T Murthy
Add support for codec definition and corresponding buffer requirements for HEVC decoder. Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: s5p-mfc: Support MFCv10.10 buffer requirementsSmitha T Murthy
Aligning the luma_dpb_size, chroma_dpb_size, mv_size and me_buffer_size for MFCv10.10. Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Kamil Debski <kamil@wypas.org> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: s5p-mfc: Use min scratch buffer size as provided by F/WSmitha T Murthy
After MFC v8.0, mfc f/w lets the driver know how much scratch buffer size is required for decoder. If mfc f/w has the functionality, E_MIN_SCRATCH_BUFFER_SIZE, driver can know how much scratch buffer size is required for encoder too. Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22drm/vmwgfx: Bump version patchlevel and dateThomas Hellstrom
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
2018-03-22drm/vmwgfx: use monotonic event timestampsArnd Bergmann
DRM_VMW_EVENT_FENCE_SIGNALED (struct drm_vmw_event_fence) and DRM_EVENT_VBLANK (struct drm_event_vblank) pass timestamps in 32-bit seconds/microseconds format. As of commit c61eef726a78 ("drm: add support for monotonic vblank timestamps"), other DRM drivers use monotonic times for drm_event_vblank, but vmwgfx still uses CLOCK_REALTIME for both events, which suffers from the y2038/y2106 overflow as well as time jumps. For consistency, this changes vmwgfx to use ktime_get_ts64 as well, which solves those problems and avoids the deprecated do_gettimeofday() function. This should be transparent to to user space, as long as it doesn't compare the time against the result of gettimeofday(). Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
2018-03-22drm/vmwgfx: Unpin the screen object backup buffer when not usedThomas Hellstrom
We were relying on the pinned screen object backup buffer to be destroyed when not used. But if we hold a copy of the atomic state, like when hibernating, the backup buffer might not be destroyed since it's refcounted by the atomic state. This causes us to hibernate with a buffer pinned in VRAM. Fix this by only having the buffer pinned when it is actually used by a screen object. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com>
2018-03-22drm/vmwgfx: Stricter count of legacy surface device resourcesThomas Hellstrom
For legacy surfaces, they were previously registered as device resources when the driver resources were created. Since they are evictable we instead register them as device resources once they are created on the device, just like for guest-backed surfaces. This has implications during hibernation where we can't hibernate with device resources active. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Deepak Rawat <drawat@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com>
2018-03-22drm/vmwgfx: Use kasprintfHimanshu Jha
Use kasprintf instead of combination of kmalloc and sprintf. Also, remove the local variables used for storing the string length as they are not required now. Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
2018-03-22drm/vmwgfx: Get rid of the device-private suspended memberThomas Hellstrom
It was used to early block fbdev dirty processing. Replace it with an unprotected check of the par->dirty.active field. While this might race with the vmw_fb_off() function, we do a protected check later so the race will at worst lead to grabbing and releasing a couple of locks. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com>
2018-03-22drm/vmwgfx: Improve on hibernationThomas Hellstrom
Make it possible to hibernate also with masters that don't switch VT at hibernation time. We save and restore modesetting state unless fbdev is active and enabled at hibernation time. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com>
2018-03-22drm/vmwgfx: Avoid pinning fbdev framebuffersThomas Hellstrom
fbdev framebuffers were previously pinned to be able to keep them mapped across updates. This commit introduces a mechanism that instead revalidates the map on each update, keeping the map cached across updates. The cached map is torn down if the underlying pages change. Typically on buffer object moves and swapouts. This should be nicer to the system when we have resource contention. Testing done: Basic fbdev functionality under Fedora 27. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Sinclair Yeh <syeh@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Deepak Rawat <drawat@vmware.com>
2018-03-22drm/vmwgfx: Fix multiple command buffer context useThomas Hellstrom
The start / stop and preempt commands don't honor the context argument but rather acts on all available contexts. Also add detection for context 1 availability. Note that currently there's no driver interface for submitting buffers using the high-priority command queue (context 1). Testing done: Change the default context for command submission to 1 instead of 0, verify basic desktop functionality including faulty command injection and recovery. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Deepak Rawat <drawat@vmware.com>
2018-03-22drm/vmwgfx: Use the cpu blit utility for framebuffer to screen target blitsThomas Hellstrom
This blit was previously performed using two large vmaps, one of which was teared down and remapped on each blit. Use the more resource- conserving TTM cpu blit instead. The blit is used in boundary-box computing mode which makes it possible to minimize the bounding box used in host operations. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com>
2018-03-22drm/vmwgfx: Add a cpu blit utility that can be used for page-backed bosThomas Hellstrom
The utility uses kmap_atomic() instead of vmapping the whole buffer object. As a result there will be more book-keeping but on some architectures this will help avoid exhausting vmalloc space and also avoid expensive TLB flushes. The blit utility also adds a provision to compute a bounding box of changed content, which is very useful to optimize presentation speed of ill-behaved applications that don't supply proper damage regions, and for page-flips. The cost of computing the bounding box is not that expensive when done in a cpu-blit utility like this. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com>
2018-03-22media: s5p-mfc: Adding initial support for MFC v10.10Smitha T Murthy
Adding the support for MFC v10.10, with new register file and necessary hw control, decoder, encoder and structural changes. Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: s5p-mfc: Rename IS_MFCV8 macroSmitha T Murthy
This patch renames macro IS_MFCV8 to IS_MFCV8_PLUS so that the MFCv8 code can be resued for MFCv10.10 support. Since the MFCv8 specific code holds good for MFC v10.10 also. Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Acked-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: extended-controls.rst: don't use adjustboxMauro Carvalho Chehab
LaTeX adjustbox is known to cause pdf documentation build breakages with some newer Sphinx versions. So, don't use it. While here, adjust table sizes in order to better produce the pdf output. Fixes: c0da55b95bd9 ("media: v4l2: Documentation for HEVC CIDs") Cc: Smitha T Murthy <smitha.t@samsung.com> Cc: Hans Verkuil <hans.verkuil@cisco.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: v4l2: Documentation for HEVC CIDsSmitha T Murthy
Added V4L2 controls for HEVC encoder. with V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_10 to match the code. [s.nawrocki@samsung.com]: Replaced V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN10 Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: v4l2: Add v4l2 control IDs for HEVC encoderSmitha T Murthy
Add v4l2 controls for HEVC encoder Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: v4l2: Documentation of HEVC compressed formatSmitha T Murthy
Add V4L2 definition for HEVC compressed format which is also known as H.265. Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: v4l2-ioctl: add HEVC format descriptionSmitha T Murthy
HEVC is a video coding format Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Reviewed-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: videodev2.h: Add v4l2 definition for HEVCSmitha T Murthy
Add V4L2 definition for HEVC compressed format Signed-off-by: Smitha T Murthy <smitha.t@samsung.com> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: rcar-vin: use scratch buffer and always run in continuous modeNiklas Söderlund
Instead of switching capture mode depending on how many buffers are available use a scratch buffer and always run in continuous mode. By using a scratch buffer the responsiveness of the capture loop is increased as it can keep running even if there are no buffers available from userspace. As soon as a userspace queues a buffer it is inserted into the capture loop and returned as soon as it is filled. This is a improvement on the previous logic where the whole capture loop was stopped and switched to single capture mode if userspace did not feed the VIN driver buffers at the same time it consumed them. To make matters worse it was difficult for the driver to reenter continuous mode if it entered single mode even if userspace started to queue buffers faster. This resulted in suboptimal performance where if userspace where delayed for a short period the ongoing capture would be slowed down and run in single mode until the capturing process where restarted. An additional effect of this change is that the capture logic can be made much simple as we know that continuous mode will always be used. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: rcar-vin: allocate a scratch buffer at stream startNiklas Söderlund
Before starting a capture, allocate a scratch buffer which can be used by the driver to give to the hardware if no buffers are available from userspace. The buffer is not used in this patch but prepares for future refactoring where the scratch buffer can be used to avoid the need to fallback on single capture mode if userspace can't queue buffers as fast as the VIN driver consumes them. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
generated by cgit (git 2.34.1) at 2025-09-18 21:26:26 +0000