From 67e9c74b8a873408c27ac9a8e4c1d1c8d72c93ff Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 16 Nov 2015 11:13:34 -0500 Subject: cgroup: replace __DEVEL__sane_behavior with cgroup2 fs type With major controllers - cpu, memory and io - shaping up for the unified hierarchy, cgroup2 is about ready to be, gradually, released into the wild. Replace __DEVEL__sane_behavior flag which was used to select the unified hierarchy with a separate filesystem type "cgroup2" so that unified hierarchy can be mounted as follows. mount -t cgroup2 none $MOUNT_POINT The cgroup2 fs has its own magic number - 0x63677270 ("cgrp"). v2: Assign a different magic number to cgroup2 fs. Signed-off-by: Tejun Heo Acked-by: Li Zefan Cc: Johannes Weiner --- include/uapi/linux/magic.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h index accb036bbc9c..b283d56c1db9 100644 --- a/include/uapi/linux/magic.h +++ b/include/uapi/linux/magic.h @@ -54,6 +54,7 @@ #define SMB_SUPER_MAGIC 0x517B #define CGROUP_SUPER_MAGIC 0x27e0eb +#define CGROUP2_SUPER_MAGIC 0x63677270 #define STACK_END_MAGIC 0x57AC6E9D -- cgit v1.2.3 From b7be755733dc44c72956c91876e5d86c56052a54 Mon Sep 17 00:00:00 2001 From: Alec Leamas Date: Thu, 12 Nov 2015 16:03:00 -0200 Subject: [media] bz#75751: Move internal header file lirc.h to uapi/ The file include/media/lirc.h describes a public interface and should thus be a public header. See kernel bug https://bugzilla.kernel.org/show_bug.cgi?id=75751 which has a manpage describing the interface + an acknowledgment that this info belongs to uapi. Signed-off-by: Mauro Carvalho Chehab --- include/uapi/linux/lirc.h | 168 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 168 insertions(+) create mode 100644 include/uapi/linux/lirc.h (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/lirc.h b/include/uapi/linux/lirc.h new file mode 100644 index 000000000000..4b3ab2966b5a --- /dev/null +++ b/include/uapi/linux/lirc.h @@ -0,0 +1,168 @@ +/* + * lirc.h - linux infrared remote control header file + * last modified 2010/07/13 by Jarod Wilson + */ + +#ifndef _LINUX_LIRC_H +#define _LINUX_LIRC_H + +#include +#include + +#define PULSE_BIT 0x01000000 +#define PULSE_MASK 0x00FFFFFF + +#define LIRC_MODE2_SPACE 0x00000000 +#define LIRC_MODE2_PULSE 0x01000000 +#define LIRC_MODE2_FREQUENCY 0x02000000 +#define LIRC_MODE2_TIMEOUT 0x03000000 + +#define LIRC_VALUE_MASK 0x00FFFFFF +#define LIRC_MODE2_MASK 0xFF000000 + +#define LIRC_SPACE(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_SPACE) +#define LIRC_PULSE(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_PULSE) +#define LIRC_FREQUENCY(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_FREQUENCY) +#define LIRC_TIMEOUT(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_TIMEOUT) + +#define LIRC_VALUE(val) ((val)&LIRC_VALUE_MASK) +#define LIRC_MODE2(val) ((val)&LIRC_MODE2_MASK) + +#define LIRC_IS_SPACE(val) (LIRC_MODE2(val) == LIRC_MODE2_SPACE) +#define LIRC_IS_PULSE(val) (LIRC_MODE2(val) == LIRC_MODE2_PULSE) +#define LIRC_IS_FREQUENCY(val) (LIRC_MODE2(val) == LIRC_MODE2_FREQUENCY) +#define LIRC_IS_TIMEOUT(val) (LIRC_MODE2(val) == LIRC_MODE2_TIMEOUT) + +/* used heavily by lirc userspace */ +#define lirc_t int + +/*** lirc compatible hardware features ***/ + +#define LIRC_MODE2SEND(x) (x) +#define LIRC_SEND2MODE(x) (x) +#define LIRC_MODE2REC(x) ((x) << 16) +#define LIRC_REC2MODE(x) ((x) >> 16) + +#define LIRC_MODE_RAW 0x00000001 +#define LIRC_MODE_PULSE 0x00000002 +#define LIRC_MODE_MODE2 0x00000004 +#define LIRC_MODE_LIRCCODE 0x00000010 + + +#define LIRC_CAN_SEND_RAW LIRC_MODE2SEND(LIRC_MODE_RAW) +#define LIRC_CAN_SEND_PULSE LIRC_MODE2SEND(LIRC_MODE_PULSE) +#define LIRC_CAN_SEND_MODE2 LIRC_MODE2SEND(LIRC_MODE_MODE2) +#define LIRC_CAN_SEND_LIRCCODE LIRC_MODE2SEND(LIRC_MODE_LIRCCODE) + +#define LIRC_CAN_SEND_MASK 0x0000003f + +#define LIRC_CAN_SET_SEND_CARRIER 0x00000100 +#define LIRC_CAN_SET_SEND_DUTY_CYCLE 0x00000200 +#define LIRC_CAN_SET_TRANSMITTER_MASK 0x00000400 + +#define LIRC_CAN_REC_RAW LIRC_MODE2REC(LIRC_MODE_RAW) +#define LIRC_CAN_REC_PULSE LIRC_MODE2REC(LIRC_MODE_PULSE) +#define LIRC_CAN_REC_MODE2 LIRC_MODE2REC(LIRC_MODE_MODE2) +#define LIRC_CAN_REC_LIRCCODE LIRC_MODE2REC(LIRC_MODE_LIRCCODE) + +#define LIRC_CAN_REC_MASK LIRC_MODE2REC(LIRC_CAN_SEND_MASK) + +#define LIRC_CAN_SET_REC_CARRIER (LIRC_CAN_SET_SEND_CARRIER << 16) +#define LIRC_CAN_SET_REC_DUTY_CYCLE (LIRC_CAN_SET_SEND_DUTY_CYCLE << 16) + +#define LIRC_CAN_SET_REC_DUTY_CYCLE_RANGE 0x40000000 +#define LIRC_CAN_SET_REC_CARRIER_RANGE 0x80000000 +#define LIRC_CAN_GET_REC_RESOLUTION 0x20000000 +#define LIRC_CAN_SET_REC_TIMEOUT 0x10000000 +#define LIRC_CAN_SET_REC_FILTER 0x08000000 + +#define LIRC_CAN_MEASURE_CARRIER 0x02000000 +#define LIRC_CAN_USE_WIDEBAND_RECEIVER 0x04000000 + +#define LIRC_CAN_SEND(x) ((x)&LIRC_CAN_SEND_MASK) +#define LIRC_CAN_REC(x) ((x)&LIRC_CAN_REC_MASK) + +#define LIRC_CAN_NOTIFY_DECODE 0x01000000 + +/*** IOCTL commands for lirc driver ***/ + +#define LIRC_GET_FEATURES _IOR('i', 0x00000000, __u32) + +#define LIRC_GET_SEND_MODE _IOR('i', 0x00000001, __u32) +#define LIRC_GET_REC_MODE _IOR('i', 0x00000002, __u32) +#define LIRC_GET_SEND_CARRIER _IOR('i', 0x00000003, __u32) +#define LIRC_GET_REC_CARRIER _IOR('i', 0x00000004, __u32) +#define LIRC_GET_SEND_DUTY_CYCLE _IOR('i', 0x00000005, __u32) +#define LIRC_GET_REC_DUTY_CYCLE _IOR('i', 0x00000006, __u32) +#define LIRC_GET_REC_RESOLUTION _IOR('i', 0x00000007, __u32) + +#define LIRC_GET_MIN_TIMEOUT _IOR('i', 0x00000008, __u32) +#define LIRC_GET_MAX_TIMEOUT _IOR('i', 0x00000009, __u32) + +#define LIRC_GET_MIN_FILTER_PULSE _IOR('i', 0x0000000a, __u32) +#define LIRC_GET_MAX_FILTER_PULSE _IOR('i', 0x0000000b, __u32) +#define LIRC_GET_MIN_FILTER_SPACE _IOR('i', 0x0000000c, __u32) +#define LIRC_GET_MAX_FILTER_SPACE _IOR('i', 0x0000000d, __u32) + +/* code length in bits, currently only for LIRC_MODE_LIRCCODE */ +#define LIRC_GET_LENGTH _IOR('i', 0x0000000f, __u32) + +#define LIRC_SET_SEND_MODE _IOW('i', 0x00000011, __u32) +#define LIRC_SET_REC_MODE _IOW('i', 0x00000012, __u32) +/* Note: these can reset the according pulse_width */ +#define LIRC_SET_SEND_CARRIER _IOW('i', 0x00000013, __u32) +#define LIRC_SET_REC_CARRIER _IOW('i', 0x00000014, __u32) +#define LIRC_SET_SEND_DUTY_CYCLE _IOW('i', 0x00000015, __u32) +#define LIRC_SET_REC_DUTY_CYCLE _IOW('i', 0x00000016, __u32) +#define LIRC_SET_TRANSMITTER_MASK _IOW('i', 0x00000017, __u32) + +/* + * when a timeout != 0 is set the driver will send a + * LIRC_MODE2_TIMEOUT data packet, otherwise LIRC_MODE2_TIMEOUT is + * never sent, timeout is disabled by default + */ +#define LIRC_SET_REC_TIMEOUT _IOW('i', 0x00000018, __u32) + +/* 1 enables, 0 disables timeout reports in MODE2 */ +#define LIRC_SET_REC_TIMEOUT_REPORTS _IOW('i', 0x00000019, __u32) + +/* + * pulses shorter than this are filtered out by hardware (software + * emulation in lirc_dev?) + */ +#define LIRC_SET_REC_FILTER_PULSE _IOW('i', 0x0000001a, __u32) +/* + * spaces shorter than this are filtered out by hardware (software + * emulation in lirc_dev?) + */ +#define LIRC_SET_REC_FILTER_SPACE _IOW('i', 0x0000001b, __u32) +/* + * if filter cannot be set independently for pulse/space, this should + * be used + */ +#define LIRC_SET_REC_FILTER _IOW('i', 0x0000001c, __u32) + +/* + * if enabled from the next key press on the driver will send + * LIRC_MODE2_FREQUENCY packets + */ +#define LIRC_SET_MEASURE_CARRIER_MODE _IOW('i', 0x0000001d, __u32) + +/* + * to set a range use + * LIRC_SET_REC_DUTY_CYCLE_RANGE/LIRC_SET_REC_CARRIER_RANGE with the + * lower bound first and later + * LIRC_SET_REC_DUTY_CYCLE/LIRC_SET_REC_CARRIER with the upper bound + */ + +#define LIRC_SET_REC_DUTY_CYCLE_RANGE _IOW('i', 0x0000001e, __u32) +#define LIRC_SET_REC_CARRIER_RANGE _IOW('i', 0x0000001f, __u32) + +#define LIRC_NOTIFY_DECODE _IO('i', 0x00000020) + +#define LIRC_SETUP_START _IO('i', 0x00000021) +#define LIRC_SETUP_END _IO('i', 0x00000022) + +#define LIRC_SET_WIDEBAND_RECEIVER _IOW('i', 0x00000023, __u32) + +#endif -- cgit v1.2.3 From d647f0b70ce2b4aeb443639dc92b2d859da697a7 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 13 Nov 2015 19:40:07 -0200 Subject: [media] include/media: move driver interface headers to a separate dir Let's not mix headers used by the core with those headers that are needed by some driver-specific interface header. The headers used on drivers were manually moved using: mkdir include/media/drv-intf/ git mv include/media/cx2341x.h include/media/cx25840.h \ include/media/exynos-fimc.h include/media/msp3400.h \ include/media/s3c_camif.h include/media/saa7146.h \ include/media/saa7146_vv.h include/media/sh_mobile_ceu.h \ include/media/sh_mobile_csi2.h include/media/sh_vou.h \ include/media/si476x.h include/media/soc_mediabus.h \ include/media/tea575x.h include/media/drv-intf/ And the references for those headers were corrected using: MAIN_DIR="media/" PREV_DIR="media/" DIRS="drv-intf/" echo "Checking affected files" >&2 for i in $DIRS; do for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do n=`basename $j` git grep -l $n done done|sort|uniq >files && ( echo "Handling files..." >&2; echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done"; ); echo "Handling documentation..." >&2; echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo " perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done" ); ) >script && . ./script Signed-off-by: Mauro Carvalho Chehab Acked-by: Arnd Bergmann --- include/uapi/linux/v4l2-controls.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index 1bdce501ad6b..2d225bcdb831 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -158,8 +158,10 @@ enum v4l2_colorfx { * We reserve 16 controls for this driver. */ #define V4L2_CID_USER_S2255_BASE (V4L2_CID_USER_BASE + 0x1030) -/* The base for the si476x driver controls. See include/media/si476x.h for the list - * of controls. Total of 16 controls is reserved for this driver */ +/* + * The base for the si476x driver controls. See include/media/drv-intf/si476x.h + * for the list of controls. Total of 16 controls is reserved for this driver + */ #define V4L2_CID_USER_SI476X_BASE (V4L2_CID_USER_BASE + 0x1040) /* The base for the TI VPE driver controls. Total of 16 controls is reserved for -- cgit v1.2.3 From 35ec2a2fa5a362b07b590ae1568dc35e47a7b846 Mon Sep 17 00:00:00 2001 From: Ricardo Ribalda Date: Thu, 29 Oct 2015 08:10:27 -0200 Subject: [media] videodev2.h: Extend struct v4l2_ext_controls So it can be used to get the default value of a control. Without this change it is not possible to get the default value of array controls. Signed-off-by: Ricardo Ribalda Delgado Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/uapi/linux/videodev2.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index a0e87d16b726..4d88ee2d268e 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -1476,7 +1476,10 @@ struct v4l2_ext_control { } __attribute__ ((packed)); struct v4l2_ext_controls { - __u32 ctrl_class; + union { + __u32 ctrl_class; + __u32 which; + }; __u32 count; __u32 error_idx; __u32 reserved[2]; @@ -1487,6 +1490,8 @@ struct v4l2_ext_controls { #define V4L2_CTRL_ID2CLASS(id) ((id) & 0x0fff0000UL) #define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000) #define V4L2_CTRL_MAX_DIMS (4) +#define V4L2_CTRL_WHICH_CUR_VAL 0 +#define V4L2_CTRL_WHICH_DEF_VAL 0x0f000000 enum v4l2_ctrl_type { V4L2_CTRL_TYPE_INTEGER = 1, -- cgit v1.2.3 From 0f8017bebf3efd3dcb115bf8a3f883b3123019ee Mon Sep 17 00:00:00 2001 From: Ricardo Ribalda Date: Thu, 29 Oct 2015 08:10:28 -0200 Subject: [media] media/core: Replace ctrl_class with which Replace the obsolete field ctrl_class with "which". Make sure it not used in future modules by commenting out the field with ifndef __KERNEL_ . The field cannot be simply removed because that would be change on the kenel API to the userspace (and we don't like that). Signed-off-by: Ricardo Ribalda Delgado Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/uapi/linux/videodev2.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 4d88ee2d268e..bd2dc9431ac1 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -1477,7 +1477,9 @@ struct v4l2_ext_control { struct v4l2_ext_controls { union { +#ifndef __KERNEL__ __u32 ctrl_class; +#endif __u32 which; }; __u32 count; @@ -1487,7 +1489,10 @@ struct v4l2_ext_controls { }; #define V4L2_CTRL_ID_MASK (0x0fffffff) +#ifndef __KERNEL__ #define V4L2_CTRL_ID2CLASS(id) ((id) & 0x0fff0000UL) +#endif +#define V4L2_CTRL_ID2WHICH(id) ((id) & 0x0fff0000UL) #define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000) #define V4L2_CTRL_MAX_DIMS (4) #define V4L2_CTRL_WHICH_CUR_VAL 0 -- cgit v1.2.3 From 49dbb4894ae8e9247211a8bcb1fa731929738a54 Mon Sep 17 00:00:00 2001 From: Mikko Rapeli Date: Thu, 15 Oct 2015 02:56:47 -0300 Subject: [media] include/uapi/linux/dvb/video.h: remove stdint.h include Kernel headers should use linux/types.h instead. Signed-off-by: Mikko Rapeli Signed-off-by: Mauro Carvalho Chehab --- include/uapi/linux/dvb/video.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/dvb/video.h b/include/uapi/linux/dvb/video.h index d3d14a59d2d5..49392564f9d6 100644 --- a/include/uapi/linux/dvb/video.h +++ b/include/uapi/linux/dvb/video.h @@ -26,7 +26,6 @@ #include #ifndef __KERNEL__ -#include #include #endif -- cgit v1.2.3 From 8afe97be37fad85b1ad7d4ab5d6b06f6fc04a274 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 9 Nov 2015 15:33:58 -0200 Subject: [media] uvcvideo: Enable UVC 1.5 device detection UVC 1.5 devices report a bInterfaceProtocol value set to 1 in their interface descriptors. The uvcvideo driver only matches on bInterfaceProtocol 0, preventing those devices from being detected. More changes to the driver are needed for full UVC 1.5 compatibility. However, at least the UVC 1.5 Microsoft Surface Pro 3 cameras have been reported to work out of the box with the driver with an updated match table. Enable UVC 1.5 support in the match table to support the devices that can work with the current driver implementation. Devices that can't will fail, but that's hardly a regression as they're currently not detected at all anyway. Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- include/uapi/linux/usb/video.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/usb/video.h b/include/uapi/linux/usb/video.h index 3b3b95e01f71..69ab695fad2e 100644 --- a/include/uapi/linux/usb/video.h +++ b/include/uapi/linux/usb/video.h @@ -28,6 +28,7 @@ /* A.3. Video Interface Protocol Codes */ #define UVC_PC_PROTOCOL_UNDEFINED 0x00 +#define UVC_PC_PROTOCOL_15 0x01 /* A.5. Video Class-Specific VC Interface Descriptor Subtypes */ #define UVC_VC_DESCRIPTOR_UNDEFINED 0x00 -- cgit v1.2.3 From b16a5b52eb90d92b597257778e51e1fdc6423e64 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 20 Oct 2015 11:46:34 -0700 Subject: perf/x86: Add option to disable reading branch flags/cycles With LBRv5 reading the extra LBR flags like mispredict, TSX, cycles is not free anymore, as it has moved to a separate MSR. For callstack mode we don't need any of this information; so we can avoid the unnecessary MSR read. Add flags to the perf interface where perf record can request not collecting this information. Add branch_sample_type flags for CYCLES and FLAGS. It's a bit unusual for branch_sample_types to be negative (disable), not positive (enable), but since the legacy ABI reported the flags we need some form of explicit disabling to avoid breaking the ABI. After we have the flags the x86 perf code can keep track if any users need the flags. If noone needs it the information is not collected. This cuts down the cost of LBR callstack on Skylake significantly. Profiling a kernel build with LBR call stack the average run time of the PMI handler drops by 43%. Signed-off-by: Andi Kleen Signed-off-by: Peter Zijlstra (Intel) Cc: Arnaldo Carvalho de Melo Cc: Jiri Olsa Cc: Linus Torvalds Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Gleixner Cc: Vince Weaver Cc: acme@kernel.org Cc: jolsa@kernel.org Link: http://lkml.kernel.org/r/1445366797-30894-2-git-send-email-andi@firstfloor.org Signed-off-by: Ingo Molnar --- include/uapi/linux/perf_event.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index d801bb0d9f6d..1afe9623c1a7 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -171,6 +171,9 @@ enum perf_branch_sample_type_shift { PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT = 12, /* indirect jumps */ PERF_SAMPLE_BRANCH_CALL_SHIFT = 13, /* direct call */ + PERF_SAMPLE_BRANCH_NO_FLAGS_SHIFT = 14, /* no flags */ + PERF_SAMPLE_BRANCH_NO_CYCLES_SHIFT = 15, /* no cycles */ + PERF_SAMPLE_BRANCH_MAX_SHIFT /* non-ABI */ }; @@ -192,6 +195,9 @@ enum perf_branch_sample_type { PERF_SAMPLE_BRANCH_IND_JUMP = 1U << PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT, PERF_SAMPLE_BRANCH_CALL = 1U << PERF_SAMPLE_BRANCH_CALL_SHIFT, + PERF_SAMPLE_BRANCH_NO_FLAGS = 1U << PERF_SAMPLE_BRANCH_NO_FLAGS_SHIFT, + PERF_SAMPLE_BRANCH_NO_CYCLES = 1U << PERF_SAMPLE_BRANCH_NO_CYCLES_SHIFT, + PERF_SAMPLE_BRANCH_MAX = 1U << PERF_SAMPLE_BRANCH_MAX_SHIFT, }; -- cgit v1.2.3 From 5c919412fe61c35947816fdbd5f7bd09fe0dd073 Mon Sep 17 00:00:00 2001 From: Andrey Smetanin Date: Tue, 10 Nov 2015 15:36:34 +0300 Subject: kvm/x86: Hyper-V synthetic interrupt controller SynIC (synthetic interrupt controller) is a lapic extension, which is controlled via MSRs and maintains for each vCPU - 16 synthetic interrupt "lines" (SINT's); each can be configured to trigger a specific interrupt vector optionally with auto-EOI semantics - a message page in the guest memory with 16 256-byte per-SINT message slots - an event flag page in the guest memory with 16 2048-bit per-SINT event flag areas The host triggers a SINT whenever it delivers a new message to the corresponding slot or flips an event flag bit in the corresponding area. The guest informs the host that it can try delivering a message by explicitly asserting EOI in lapic or writing to End-Of-Message (EOM) MSR. The userspace (qemu) triggers interrupts and receives EOM notifications via irqfd with resampler; for that, a GSI is allocated for each configured SINT, and irq_routing api is extended to support GSI-SINT mapping. Changes v4: * added activation of SynIC by vcpu KVM_ENABLE_CAP * added per SynIC active flag * added deactivation of APICv upon SynIC activation Changes v3: * added KVM_CAP_HYPERV_SYNIC and KVM_IRQ_ROUTING_HV_SINT notes into docs Changes v2: * do not use posted interrupts for Hyper-V SynIC AutoEOI vectors * add Hyper-V SynIC vectors into EOI exit bitmap * Hyper-V SyniIC SINT msr write logic simplified Signed-off-by: Andrey Smetanin Reviewed-by: Roman Kagan Signed-off-by: Denis V. Lunev CC: Gleb Natapov CC: Paolo Bonzini CC: Roman Kagan CC: Denis V. Lunev CC: qemu-devel@nongnu.org Signed-off-by: Paolo Bonzini --- include/uapi/linux/kvm.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 03f3618612aa..27ce4602a072 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -831,6 +831,7 @@ struct kvm_ppc_smmu_info { #define KVM_CAP_GUEST_DEBUG_HW_WPS 120 #define KVM_CAP_SPLIT_IRQCHIP 121 #define KVM_CAP_IOEVENTFD_ANY_LENGTH 122 +#define KVM_CAP_HYPERV_SYNIC 123 #ifdef KVM_CAP_IRQ_ROUTING @@ -854,10 +855,16 @@ struct kvm_irq_routing_s390_adapter { __u32 adapter_id; }; +struct kvm_irq_routing_hv_sint { + __u32 vcpu; + __u32 sint; +}; + /* gsi routing entry types */ #define KVM_IRQ_ROUTING_IRQCHIP 1 #define KVM_IRQ_ROUTING_MSI 2 #define KVM_IRQ_ROUTING_S390_ADAPTER 3 +#define KVM_IRQ_ROUTING_HV_SINT 4 struct kvm_irq_routing_entry { __u32 gsi; @@ -868,6 +875,7 @@ struct kvm_irq_routing_entry { struct kvm_irq_routing_irqchip irqchip; struct kvm_irq_routing_msi msi; struct kvm_irq_routing_s390_adapter adapter; + struct kvm_irq_routing_hv_sint hv_sint; __u32 pad[8]; } u; }; -- cgit v1.2.3 From db3975717ac5e2c2761bae7b90c4f2e0abb5ef22 Mon Sep 17 00:00:00 2001 From: Andrey Smetanin Date: Tue, 10 Nov 2015 15:36:35 +0300 Subject: kvm/x86: Hyper-V kvm exit A new vcpu exit is introduced to notify the userspace of the changes in Hyper-V SynIC configuration triggered by guest writing to the corresponding MSRs. Changes v4: * exit into userspace only if guest writes into SynIC MSR's Changes v3: * added KVM_EXIT_HYPERV types and structs notes into docs Signed-off-by: Andrey Smetanin Reviewed-by: Roman Kagan Signed-off-by: Denis V. Lunev CC: Gleb Natapov CC: Paolo Bonzini CC: Roman Kagan CC: Denis V. Lunev CC: qemu-devel@nongnu.org Signed-off-by: Paolo Bonzini --- include/uapi/linux/kvm.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 27ce4602a072..6e32f7599081 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -154,6 +154,20 @@ struct kvm_s390_skeys { __u32 flags; __u32 reserved[9]; }; + +struct kvm_hyperv_exit { +#define KVM_EXIT_HYPERV_SYNIC 1 + __u32 type; + union { + struct { + __u32 msr; + __u64 control; + __u64 evt_page; + __u64 msg_page; + } synic; + } u; +}; + #define KVM_S390_GET_SKEYS_NONE 1 #define KVM_S390_SKEYS_MAX 1048576 @@ -184,6 +198,7 @@ struct kvm_s390_skeys { #define KVM_EXIT_SYSTEM_EVENT 24 #define KVM_EXIT_S390_STSI 25 #define KVM_EXIT_IOAPIC_EOI 26 +#define KVM_EXIT_HYPERV 27 /* For KVM_EXIT_INTERNAL_ERROR */ /* Emulate instruction failed. */ @@ -338,6 +353,8 @@ struct kvm_run { struct { __u8 vector; } eoi; + /* KVM_EXIT_HYPERV */ + struct kvm_hyperv_exit hyperv; /* Fix the size of the union. */ char padding[256]; }; -- cgit v1.2.3 From 120c41d3477a23c6941059401db63677736f1935 Mon Sep 17 00:00:00 2001 From: Aviv Greenberg Date: Fri, 16 Oct 2015 08:48:51 -0300 Subject: [media] UVC: Add support for ds4 depth camera Add support for Intel DS4 depth camera in uvc driver. This includes adding new uvc GUIDs for the new pixel formats, adding new V4L pixel format definition to user api headers, and updating the uvc driver GUID-to-4cc tables with the new formats. Change-Id: If240d95a7d4edc8dcc3e02d58cd8267a6bbf6fcb Tested-by: Greenberg, Aviv D Signed-off-by: Aviv Greenberg Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- include/uapi/linux/videodev2.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index bd2dc9431ac1..0014529606e2 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -621,6 +621,9 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_JPGL v4l2_fourcc('J', 'P', 'G', 'L') /* JPEG-Lite */ #define V4L2_PIX_FMT_SE401 v4l2_fourcc('S', '4', '0', '1') /* se401 janggu compressed rgb */ #define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */ +#define V4L2_PIX_FMT_Y8I v4l2_fourcc('Y', '8', 'I', ' ') /* Greyscale 8-bit L/R interleaved */ +#define V4L2_PIX_FMT_Y12I v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 12-bit L/R interleaved */ +#define V4L2_PIX_FMT_Z16 v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 16-bit */ /* SDR formats - used only for Software Defined Radio devices */ #define V4L2_SDR_FMT_CU8 v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */ -- cgit v1.2.3 From 991ce92f8de24cde063d531246602b6e14d3fef2 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 4 Dec 2015 10:38:59 -0200 Subject: [media] use https://linuxtv.org for LinuxTV URLs While https was always supported on linuxtv.org, only in Dec 3 2015 the website is using valid certificates. As we're planning to drop pure http support on some future, change all references at the media subsystem to point to the https URL instead. Signed-off-by: Mauro Carvalho Chehab --- include/uapi/linux/videodev2.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 0014529606e2..65f4449dd56e 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -46,7 +46,7 @@ * All kernel-specific stuff were moved to media/v4l2-dev.h, so * no #if __KERNEL tests are allowed here * - * See http://linuxtv.org for more info + * See https://linuxtv.org for more info * * Author: Bill Dirks * Justin Schoeman -- cgit v1.2.3 From 04b38d601239b4d9be641b412cf4b7456a041c67 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 3 Dec 2015 12:59:50 +0100 Subject: vfs: pull btrfs clone API to vfs layer The btrfs clone ioctls are now adopted by other file systems, with NFS and CIFS already having support for them, and XFS being under active development. To avoid growth of various slightly incompatible implementations, add one to the VFS. Note that clones are different from file copies in several ways: - they are atomic vs other writers - they support whole file clones - they support 64-bit legth clones - they do not allow partial success (aka short writes) - clones are expected to be a fast metadata operation Because of that it would be rather cumbersome to try to piggyback them on top of the recent clone_file_range infrastructure. The converse isn't true and the clone_file_range system call could try clone file range as a first attempt to copy, something that further patches will enable. Based on earlier work from Peng Tao. Signed-off-by: Christoph Hellwig Signed-off-by: Al Viro --- include/uapi/linux/fs.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index f15d980249b5..cd5db7fb3cb7 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -39,6 +39,13 @@ #define RENAME_EXCHANGE (1 << 1) /* Exchange source and dest */ #define RENAME_WHITEOUT (1 << 2) /* Whiteout source */ +struct file_clone_range { + __s64 src_fd; + __u64 src_offset; + __u64 src_length; + __u64 dest_offset; +}; + struct fstrim_range { __u64 start; __u64 len; @@ -159,6 +166,8 @@ struct inodes_stat_t { #define FIFREEZE _IOWR('X', 119, int) /* Freeze */ #define FITHAW _IOWR('X', 120, int) /* Thaw */ #define FITRIM _IOWR('X', 121, struct fstrim_range) /* Trim */ +#define FICLONE _IOW(0x94, 9, int) +#define FICLONERANGE _IOW(0x94, 13, struct file_clone_range) #define FS_IOC_GETFLAGS _IOR('f', 1, long) #define FS_IOC_SETFLAGS _IOW('f', 2, long) -- cgit v1.2.3 From 52d60eb7e6d6429a766ea1b8f67e01c3b2dcd3c5 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sat, 12 Dec 2015 08:10:40 -0200 Subject: Revert "[media] UVC: Add support for ds4 depth camera" This reverts commit 120c41d3477a23c6941059401db63677736f1935. The patch doesn't add the corresponding documentation bits to the media infrastructure uAPI DocBook. Also, they're for 3D formats, with requre further discussions. Requested-by: Hans Verkuil Requested-by: Laurent Pinchart --- include/uapi/linux/videodev2.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 65f4449dd56e..14cd5ebfee6d 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -621,9 +621,6 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_JPGL v4l2_fourcc('J', 'P', 'G', 'L') /* JPEG-Lite */ #define V4L2_PIX_FMT_SE401 v4l2_fourcc('S', '4', '0', '1') /* se401 janggu compressed rgb */ #define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */ -#define V4L2_PIX_FMT_Y8I v4l2_fourcc('Y', '8', 'I', ' ') /* Greyscale 8-bit L/R interleaved */ -#define V4L2_PIX_FMT_Y12I v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 12-bit L/R interleaved */ -#define V4L2_PIX_FMT_Z16 v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 16-bit */ /* SDR formats - used only for Software Defined Radio devices */ #define V4L2_SDR_FMT_CU8 v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */ -- cgit v1.2.3 From 471f3db2786bc32011d6693413eb93b0c3da2579 Mon Sep 17 00:00:00 2001 From: Benjamin Marzinski Date: Tue, 1 Dec 2015 08:46:55 -0600 Subject: gfs2: change gfs2 readdir cookie gfs2 currently returns 31 bits of filename hash as a cookie that readdir uses for an offset into the directory. When there are a large number of directory entries, the likelihood of a collision goes up way too quickly. GFS2 will now return cookies that are guaranteed unique for a while, and then fail back to using 30 bits of filename hash. Specifically, the directory leaf blocks are divided up into chunks based on the minimum size of a gfs2 directory entry (48 bytes). Each entry's cookie is based off the chunk where it starts, in the linked list of leaf blocks that it hashes to (there are 131072 hash buckets). Directory entries will have unique names until they take reach chunk 8192. Assuming the largest filenames possible, and the least efficient spacing possible, this new method will still be able to return unique names when the previous method has statistically more than a 99% chance of a collision. The non-unique names it fails back to are guaranteed to not collide with the unique names. unique cookies will be in this format: - 1 bit "0" to make sure the the returned cookie is positive - 17 bits for the hash table index - 1 bit for the mode "0" - 13 bits for the offset non-unique cookies will be in this format: - 1 bit "0" to make sure the the returned cookie is positive - 17 bits for the hash table index - 1 bit for the mode "1" - 13 more bits of the name hash Another benefit of location based cookies, is that once a directory's exhash table is fully extended (so that multiple hash table indexs do not use the same leaf blocks), gfs2 can skip sorting the directory entries until it reaches the non-unique ones, and then it only needs to sort these. This provides a significant speed up for directory reads of very large directories. The only issue is that for these cookies to continue to point to the correct entry as files are added and removed from the directory, gfs2 must keep the entries at the same offset in the leaf block when they are split (see my previous patch). This means that until all the nodes in a cluster are running with code that will split the directory leaf blocks this way, none of the nodes can use the new cookie code. To deal with this, gfs2 now has the mount option loccookie, which, if set, will make it return these new location based cookies. This option must not be set until all nodes in the cluster are at least running this version of the kernel code, and you have guaranteed that there are no outstanding cookies required by other software, such as NFS. gfs2 uses some of the extra space at the end of the gfs2_dirent structure to store the calculated readdir cookies. This keeps us from needing to allocate a seperate array to hold these values. gfs2 recomputes the cookie stored in de_cookie for every readdir call. The time it takes to do so is small, and if gfs2 expected this value to be saved on disk, the new code wouldn't work correctly on filesystems created with an earlier version of gfs2. One issue with adding de_cookie to the union in the gfs2_dirent structure is that it caused the union to align itself to a 4 byte boundary, instead of its previous 2 byte boundary. This changed the offset of de_rahead. To solve that, I pulled de_rahead out of the union, since it does not need to be there. Signed-off-by: Benjamin Marzinski Signed-off-by: Bob Peterson --- include/uapi/linux/gfs2_ondisk.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/gfs2_ondisk.h b/include/uapi/linux/gfs2_ondisk.h index 1a763eaae0bb..7c4be7711c81 100644 --- a/include/uapi/linux/gfs2_ondisk.h +++ b/include/uapi/linux/gfs2_ondisk.h @@ -297,6 +297,8 @@ struct gfs2_dinode { #define GFS2_FNAMESIZE 255 #define GFS2_DIRENT_SIZE(name_len) ((sizeof(struct gfs2_dirent) + (name_len) + 7) & ~7) +#define GFS2_MIN_DIRENT_SIZE (GFS2_DIRENT_SIZE(1)) + struct gfs2_dirent { struct gfs2_inum de_inum; @@ -304,11 +306,12 @@ struct gfs2_dirent { __be16 de_rec_len; __be16 de_name_len; __be16 de_type; + __be16 de_rahead; union { - __u8 __pad[14]; + __u8 __pad[12]; struct { - __be16 de_rahead; - __u8 pad2[12]; + __u32 de_cookie; /* ondisk value not used */ + __u8 pad3[8]; }; }; }; -- cgit v1.2.3 From 54dbc15172375641ef03399e8f911d7165eb90fb Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Sat, 19 Dec 2015 00:55:59 -0800 Subject: vfs: hoist the btrfs deduplication ioctl to the vfs Hoist the btrfs EXTENT_SAME ioctl up to the VFS and make the name more systematic (FIDEDUPERANGE). Signed-off-by: Darrick J. Wong Signed-off-by: Al Viro --- include/uapi/linux/fs.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index cd5db7fb3cb7..b38e647664a0 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -52,6 +52,35 @@ struct fstrim_range { __u64 minlen; }; +/* extent-same (dedupe) ioctls; these MUST match the btrfs ioctl definitions */ +#define FILE_DEDUPE_RANGE_SAME 0 +#define FILE_DEDUPE_RANGE_DIFFERS 1 + +/* from struct btrfs_ioctl_file_extent_same_info */ +struct file_dedupe_range_info { + __s64 dest_fd; /* in - destination file */ + __u64 dest_offset; /* in - start of extent in destination */ + __u64 bytes_deduped; /* out - total # of bytes we were able + * to dedupe from this file. */ + /* status of this dedupe operation: + * < 0 for error + * == FILE_DEDUPE_RANGE_SAME if dedupe succeeds + * == FILE_DEDUPE_RANGE_DIFFERS if data differs + */ + __s32 status; /* out - see above description */ + __u32 reserved; /* must be zero */ +}; + +/* from struct btrfs_ioctl_file_extent_same_args */ +struct file_dedupe_range { + __u64 src_offset; /* in - start of extent in source */ + __u64 src_length; /* in - length of extent */ + __u16 dest_count; /* in - total elements in info array */ + __u16 reserved1; /* must be zero */ + __u32 reserved2; /* must be zero */ + struct file_dedupe_range_info info[0]; +}; + /* And dynamically-tunable limits and defaults: */ struct files_stat_struct { unsigned long nr_files; /* read only */ @@ -168,6 +197,7 @@ struct inodes_stat_t { #define FITRIM _IOWR('X', 121, struct fstrim_range) /* Trim */ #define FICLONE _IOW(0x94, 9, int) #define FICLONERANGE _IOW(0x94, 13, struct file_clone_range) +#define FIDEDUPERANGE _IOWR(0x94, 54, struct file_dedupe_range) #define FS_IOC_GETFLAGS _IOR('f', 1, long) #define FS_IOC_SETFLAGS _IOW('f', 2, long) -- cgit v1.2.3 From c6e5f166373a20a433c38a34bd16f2b62bd0864c Mon Sep 17 00:00:00 2001 From: Fan Zhang Date: Thu, 7 Jan 2016 18:24:29 +0800 Subject: KVM: s390: implement the RI support of guest This patch adds runtime instrumentation support for KVM guest. We need to setup a save area for the runtime instrumentation-controls control block(RICCB) and implement the necessary interfaces to live migrate the guest settings. We setup the sie control block in a way, that the runtime instrumentation instructions of a guest are handled by hardware. We also add a capability KVM_CAP_S390_RI to make this feature opt-in as it needs migration support. Signed-off-by: Fan Zhang Acked-by: Cornelia Huck Signed-off-by: Christian Borntraeger --- include/uapi/linux/kvm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 6e32f7599081..9da905157cee 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -849,6 +849,7 @@ struct kvm_ppc_smmu_info { #define KVM_CAP_SPLIT_IRQCHIP 121 #define KVM_CAP_IOEVENTFD_ANY_LENGTH 122 #define KVM_CAP_HYPERV_SYNIC 123 +#define KVM_CAP_S390_RI 124 #ifdef KVM_CAP_IRQ_ROUTING -- cgit v1.2.3