From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ... --- tools/perf/util/trace-event.c | 118 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 118 insertions(+) create mode 100644 tools/perf/util/trace-event.c (limited to 'tools/perf/util/trace-event.c') diff --git a/tools/perf/util/trace-event.c b/tools/perf/util/trace-event.c new file mode 100644 index 000000000..6a8c66c64 --- /dev/null +++ b/tools/perf/util/trace-event.c @@ -0,0 +1,118 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "trace-event.h" +#include "machine.h" + +/* + * global trace_event object used by trace_event__tp_format + * + * TODO There's no cleanup call for this. Add some sort of + * __exit function support and call trace_event__cleanup + * there. + */ +static struct trace_event tevent; +static bool tevent_initialized; + +int trace_event__init(struct trace_event *t) +{ + struct tep_handle *pevent = tep_alloc(); + + if (pevent) { + t->plugin_list = tep_load_plugins(pevent); + t->pevent = pevent; + } + + return pevent ? 0 : -1; +} + +static int trace_event__init2(void) +{ + int be = tep_is_bigendian(); + struct tep_handle *pevent; + + if (trace_event__init(&tevent)) + return -1; + + pevent = tevent.pevent; + tep_set_flag(pevent, TEP_NSEC_OUTPUT); + tep_set_file_bigendian(pevent, be); + tep_set_local_bigendian(pevent, be); + tevent_initialized = true; + return 0; +} + +int trace_event__register_resolver(struct machine *machine, + tep_func_resolver_t *func) +{ + if (!tevent_initialized && trace_event__init2()) + return -1; + + return tep_set_function_resolver(tevent.pevent, func, machine); +} + +void trace_event__cleanup(struct trace_event *t) +{ + tep_unload_plugins(t->plugin_list, t->pevent); + tep_free(t->pevent); +} + +/* + * Returns pointer with encoded error via interface. + */ +static struct tep_event* +tp_format(const char *sys, const char *name) +{ + char *tp_dir = get_events_file(sys); + struct tep_handle *pevent = tevent.pevent; + struct tep_event *event = NULL; + char path[PATH_MAX]; + size_t size; + char *data; + int err; + + if (!tp_dir) + return ERR_PTR(-errno); + + scnprintf(path, PATH_MAX, "%s/%s/format", tp_dir, name); + put_events_file(tp_dir); + + err = filename__read_str(path, &data, &size); + if (err) + return ERR_PTR(err); + + tep_parse_format(pevent, &event, data, size, sys); + + free(data); + return event; +} + +/* + * Returns pointer with encoded error via interface. + */ +struct tep_event* +trace_event__tp_format(const char *sys, const char *name) +{ + if (!tevent_initialized && trace_event__init2()) + return ERR_PTR(-ENOMEM); + + return tp_format(sys, name); +} + +struct tep_event *trace_event__tp_format_id(int id) +{ + if (!tevent_initialized && trace_event__init2()) + return ERR_PTR(-ENOMEM); + + return tep_find_event(tevent.pevent, id); +} -- cgit v1.3.1