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As the end goal is to have platform drivers split by vendor,
rename davinci/ to ti/davinci/.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename am437x/ to ti/am437x/.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
move both stm32/ and sti/ for them to be inside st/ directory.
Acked-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename s5p-mfc/ to samsung/s5p-mfc/.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename s5p-jpeg/ to samsung/s5p-jpeg/.
Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename s5p-g2d/ to samsung/s5p-g2d/.
Acked-by: Łukasz Stelmach <l.stelmach@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename s3c-camif/ to samsung/s3c-camif/.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename exynos-gsc/ to samsung/exynos-gsc/.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename exynos4-is/ to samsung/exynos4-is/.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename tegra/vde/ to nvidia/tegra-vde/.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename mtk-vpu/ to mediatek/mtk-vpu/.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename mtk-vcodec/ to mediatek/mtk-vcodec/.
Acked-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename mtk-mdp/ to mediatek/mtk-mdp/.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename mtk-jpeg/ to mediatek/mtk-jpeg/.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename meson/ge2d/ to amlogic/meson-ge2d/.
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename marvell-ccic/ to marvell/.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As the end goal is to have platform drivers split by vendor,
rename coda/ to chips-media/.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Just like media bus drivers, place platform drivers on a
submenu, in order to better organize user-selection:
Media drivers --->
*** media drivers ***
[*] Media USB Adapters --->
[*] Media PCI Adapters --->
-*- Radio Adapters --->
[*] Media platform devices --->
*** MMC/SDIO DVB adapters ***
< > Siano SMS1xxx based MDTV via SDIO interface
[*] V4L test drivers --->
[*] DVB test drivers --->
*** FireWire (IEEE 1394) Adapters ***
<*> FireDTV and FloppyDTV
*** common driver options ***
[ ] Enable Remote Controller support for Siano devices
[ ] Enable debugfs for smsdvb
As this submenu depends on MEDIA_PLATFORM_DRIVERS and defaults to "y",
there's no need to change already-existing .config entries, nor touch
the several make *_defconfig.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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As there are 4 manufacturer's directories with multiple sources
(qcom, rockchip, sti and sunxi), move the sources from
platform/Kconfig to their specific Konfig files.
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Now that each non-generic driver has their own directory,
sort the entries.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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In order to better organize the platform/Kconfig, place
s5p-jpeg-specific config stuff on a separate Kconfig file.
Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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In order to better organize the platform/Kconfig, place
s5p-mfc-specific config stuff on a separate Kconfig file.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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In order to better organize the platform/Kconfig, place
bdisp-specific config stuff on a separate Kconfig file.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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In order to better organize the platform/Kconfig, place
delta-specific config stuff on a separate Kconfig file.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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In order to better organize the platform/Kconfig, place
rkisp1-specific config stuff on a separate Kconfig file.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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In order to better organize the platform/Kconfig, place
ti-vpe-specific config stuff on a separate Kconfig file.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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In order to better organize the platform/Kconfig, place
vde-specific config stuff on a separate Kconfig file.
Acked-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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In order to better organize the platform/Kconfig, place
sun8i-rotate-specific config stuff on a separate Kconfig file.
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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In order to better organize the platform/Kconfig, place
sun8i-di-specific config stuff on a separate Kconfig file.
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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In order to better organize the platform/Kconfig, place
stm32-specific config stuff on a separate Kconfig file.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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In order to better organize the platform/Kconfig, place
hva-specific config stuff on a separate Kconfig file.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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In order to better organize the platform/Kconfig, place
s5p-g2d-specific config stuff on a separate Kconfig file.
Acked-by: Łukasz Stelmach <l.stelmach@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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git://anongit.freedesktop.org/drm/drm-intel into drm-next
- Do not re-enable PSR after it was marked as not reliable (Jose)
- Add missing boundary check in vm_access to avoid out-of-bounds access (Mastan)
- Naming fix for HPD short pulse handling for eDP (Jose)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YjLnofpe5sMHX7Pt@jlahtine-mobl.ger.corp.intel.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
* drm/imx: Don't test bus flags in atomic check
* drm/mgag200: Fix PLL setup on some models
* drm/panel: Fix bpp settings on Innolux G070Y2-L01; Fix DRM_PANEL_EDP
Kconfig dependencies
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YjMNcqOuDFDoe+EN@linux-uq9g
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Jiri Olsa says:
====================
hi,
this patchset adds new link type BPF_TRACE_KPROBE_MULTI that attaches
kprobe program through fprobe API [1] instroduced by Masami.
The fprobe API allows to attach probe on multiple functions at once very
fast, because it works on top of ftrace. On the other hand this limits
the probe point to the function entry or return.
With bpftrace support I see following attach speed:
# perf stat --null -r 5 ./src/bpftrace -e 'kprobe:x* { } i:ms:1 { exit(); } '
Attaching 2 probes...
Attaching 3342 functions
...
1.4960 +- 0.0285 seconds time elapsed ( +- 1.91% )
v3 changes:
- based on latest fprobe post from Masami [2]
- add acks
- add extra comment to kprobe_multi_link_handler wrt entry ip setup [Masami]
- keep swap_words_64 static and swap values directly in
bpf_kprobe_multi_cookie_swap [Andrii]
- rearrange locking/migrate setup in kprobe_multi_link_prog_run [Andrii]
- move uapi fields [Andrii]
- add bpf_program__attach_kprobe_multi_opts function [Andrii]
- many small test changes [Andrii]
- added tests for bpf_program__attach_kprobe_multi_opts
- make kallsyms_lookup_name check for empty string [Andrii]
v2 changes:
- based on latest fprobe changes [1]
- renaming the uapi interface to kprobe multi
- adding support for sort_r to pass user pointer for swap functions
and using that in cookie support to keep just single functions array
- moving new link to kernel/trace/bpf_trace.c file
- using single fprobe callback function for entry and exit
- using kvzalloc, libbpf_ensure_mem functions
- adding new k[ret]probe.multi sections instead of using current kprobe
- used glob_match from test_progs.c, added '?' matching
- move bpf_get_func_ip verifier inline change to seprate change
- couple of other minor fixes
Also available at:
https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
bpf/kprobe_multi
thanks,
jirka
[1] https://lore.kernel.org/bpf/164458044634.586276.3261555265565111183.stgit@devnote2/
[2] https://lore.kernel.org/bpf/164735281449.1084943.12438881786173547153.stgit@devnote2/
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Adding bpf_cookie test for programs attached by
bpf_program__attach_kprobe_multi_opts API.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-14-jolsa@kernel.org
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Adding tests for bpf_program__attach_kprobe_multi_opts function,
that test attach with pattern, symbols and addrs.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-13-jolsa@kernel.org
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Adding bpf_cookie test for programs attached by kprobe_multi links.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-12-jolsa@kernel.org
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Adding kprobe_multi attach test that uses new fprobe interface to
attach kprobe program to multiple functions.
The test is attaching programs to bpf_fentry_test* functions and
uses single trampoline program bpf_prog_test_run to trigger
bpf_fentry_test* functions.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-11-jolsa@kernel.org
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Adding bpf_program__attach_kprobe_multi_opts function for attaching
kprobe program to multiple functions.
struct bpf_link *
bpf_program__attach_kprobe_multi_opts(const struct bpf_program *prog,
const char *pattern,
const struct bpf_kprobe_multi_opts *opts);
User can specify functions to attach with 'pattern' argument that
allows wildcards (*?' supported) or provide symbols or addresses
directly through opts argument. These 3 options are mutually
exclusive.
When using symbols or addresses, user can also provide cookie value
for each symbol/address that can be retrieved later in bpf program
with bpf_get_attach_cookie helper.
struct bpf_kprobe_multi_opts {
size_t sz;
const char **syms;
const unsigned long *addrs;
const __u64 *cookies;
size_t cnt;
bool retprobe;
size_t :0;
};
Symbols, addresses and cookies are provided through opts object
(syms/addrs/cookies) as array pointers with specified count (cnt).
Each cookie value is paired with provided function address or symbol
with the same array index.
The program can be also attached as return probe if 'retprobe' is set.
For quick usage with NULL opts argument, like:
bpf_program__attach_kprobe_multi_opts(prog, "ksys_*", NULL)
the 'prog' will be attached as kprobe to 'ksys_*' functions.
Also adding new program sections for automatic attachment:
kprobe.multi/<symbol_pattern>
kretprobe.multi/<symbol_pattern>
The symbol_pattern is used as 'pattern' argument in
bpf_program__attach_kprobe_multi_opts function.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-10-jolsa@kernel.org
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Adding new kprobe_multi struct to bpf_link_create_opts object
to pass multiple kprobe data to link_create attr uapi.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-9-jolsa@kernel.org
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Move the kallsyms parsing in internal libbpf_kallsyms_parse
function, so it can be used from other places.
It will be used in following changes.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-8-jolsa@kernel.org
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Adding support to call bpf_get_attach_cookie helper from
kprobe programs attached with kprobe multi link.
The cookie is provided by array of u64 values, where each
value is paired with provided function address or symbol
with the same array index.
When cookie array is provided it's sorted together with
addresses (check bpf_kprobe_multi_cookie_swap). This way
we can find cookie based on the address in
bpf_get_attach_cookie helper.
Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-7-jolsa@kernel.org
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Adding support to inline it on x86, because it's single
load instruction.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-6-jolsa@kernel.org
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Adding support to call bpf_get_func_ip helper from kprobe
programs attached by multi kprobe link.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-5-jolsa@kernel.org
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Masami Hiramatsu says:
====================
Hi,
Here is the 12th version of fprobe. This version fixes a possible gcc-11 issue which
was reported as kretprobes on arm issue, and also I updated the fprobe document.
The previous version (v11) is here[1];
[1] https://lore.kernel.org/all/164701432038.268462.3329725152949938527.stgit@devnote2/T/#u
This series introduces the fprobe, the function entry/exit probe
with multiple probe point support for x86, arm64 and powerpc64le.
This also introduces the rethook for hooking function return as same as
the kretprobe does. This abstraction will help us to generalize the fgraph
tracer, because we can just switch to it from the rethook in fprobe,
depending on the kernel configuration.
The patch [1/12] is from Jiri's series[2].
[2] https://lore.kernel.org/all/20220104080943.113249-1-jolsa@kernel.org/T/#u
And the patch [9/10] adds the FPROBE_FL_KPROBE_SHARED flag for the case
if user wants to share the same code (or share a same resource) on the
fprobe and the kprobes.
I forcibly updated my kprobes/fprobe branch, you can pull this series
from:
https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git kprobes/fprobe
Thank you,
---
Jiri Olsa (1):
ftrace: Add ftrace_set_filter_ips function
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Adding new link type BPF_LINK_TYPE_KPROBE_MULTI that attaches kprobe
program through fprobe API.
The fprobe API allows to attach probe on multiple functions at once
very fast, because it works on top of ftrace. On the other hand this
limits the probe point to the function entry or return.
The kprobe program gets the same pt_regs input ctx as when it's attached
through the perf API.
Adding new attach type BPF_TRACE_KPROBE_MULTI that allows attachment
kprobe to multiple function with new link.
User provides array of addresses or symbols with count to attach the
kprobe program to. The new link_create uapi interface looks like:
struct {
__u32 flags;
__u32 cnt;
__aligned_u64 syms;
__aligned_u64 addrs;
} kprobe_multi;
The flags field allows single BPF_TRACE_KPROBE_MULTI bit to create
return multi kprobe.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-4-jolsa@kernel.org
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When kallsyms_lookup_name is called with empty string,
it will do futile search for it through all the symbols.
Skipping the search for empty string.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-3-jolsa@kernel.org
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Adding support to have priv pointer in swap callback function.
Following the initial change on cmp callback functions [1]
and adding SWAP_WRAPPER macro to identify sort call of sort_r.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lore.kernel.org/bpf/20220316122419.933957-2-jolsa@kernel.org
[1] 4333fb96ca10 ("media: lib/sort.c: implement sort() variant taking context argument")
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Add a KUnit based selftest for fprobe interface.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Tested-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/164735295554.1084943.18347620679928750960.stgit@devnote2
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