Commit Graph

982974 Commits

Author SHA1 Message Date
Leo Yan
e66f6d7596 perf arm-spe: Add new function arm_spe_pkt_desc_event()
This patch moves out the event packet parsing from arm_spe_pkt_desc()
to the new function arm_spe_pkt_desc_event().

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wei Li <liwei391@huawei.com>
Link: https://lore.kernel.org/r/20201119152441.6972-10-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-26 09:31:45 -03:00
Leo Yan
d158aa408f perf arm-spe: Refactor counter packet handling
This patch defines macros for counter packet header, and uses macros to
replace hard code values in functions arm_spe_get_counter() and
arm_spe_pkt_desc().

In the function arm_spe_get_counter(), adds a new line for more
readable.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wei Li <liwei391@huawei.com>
Link: https://lore.kernel.org/r/20201119152441.6972-9-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-26 09:31:43 -03:00
Leo Yan
c52cfe9872 perf arm-spe: Add new function arm_spe_pkt_desc_counter()
This patch moves out the counter packet parsing code from
arm_spe_pkt_desc() to the new function arm_spe_pkt_desc_counter().

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wei Li <liwei391@huawei.com>
Link: https://lore.kernel.org/r/20201119152441.6972-8-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-26 09:31:42 -03:00
Leo Yan
6550149e80 perf arm-spe: Refactor context packet handling
Minor refactoring to use macro for index mask.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wei Li <liwei391@huawei.com>
Link: https://lore.kernel.org/r/20201119152441.6972-7-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-26 09:31:41 -03:00
Leo Yan
5513ddaf10 perf arm_spe: Fixup top byte for data virtual address
To establish a valid address from the address packet payload and finally
the address value can be used for parsing data symbol in DSO, current
code uses 0xff to replace the tag in the top byte of data virtual
address.

So far the code only fixups top byte for the memory layouts with 4KB
pages, it misses to support memory layouts with 64KB pages.

This patch adds the conditions for checking bits [55:52] are 0xf, if
detects the pattern it will fill 0xff into the top byte of the address,
also adds comment to explain the fixing up.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wei Li <liwei391@huawei.com>
Link: https://lore.kernel.org/r/20201119152441.6972-6-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-26 09:31:40 -03:00
Leo Yan
09935ca7b6 perf arm-spe: Refactor address packet handling
This patch is to refactor address packet handling, it defines macros for
address packet's header and payload, these macros are used by decoder
and the dump flow.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wei Li <liwei391@huawei.com>
Link: https://lore.kernel.org/r/20201119152441.6972-5-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-26 09:31:38 -03:00
Leo Yan
ab2aa439e4 perf arm-spe: Add new function arm_spe_pkt_desc_addr()
This patch moves out the address parsing code from arm_spe_pkt_desc()
and uses the new introduced function arm_spe_pkt_desc_addr() to process
address packet.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wei Li <liwei391@huawei.com>
Link: https://lore.kernel.org/r/20201119152441.6972-4-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-26 09:31:34 -03:00
Leo Yan
11695142e2 perf arm-spe: Refactor packet header parsing
The packet header parsing uses the hard coded values and it uses nested
if-else statements.

To improve the readability, this patch refactors the macros for packet
header format so it removes the hard coded values.  Furthermore, based
on the new mask macros it reduces the nested if-else statements and
changes to use the flat conditions checking, this is directive and can
easily map to the descriptions in ARMv8-a architecture reference manual
(ARM DDI 0487E.a), chapter 'D10.1.5 Statistical Profiling Extension
protocol packet headers'.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wei Li <liwei391@huawei.com>
Link: https://lore.kernel.org/r/20201119152441.6972-3-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-26 09:31:29 -03:00
Leo Yan
75eeaddd57 perf arm-spe: Refactor printing string to buffer
When outputs strings to the decoding buffer with function snprintf(),
SPE decoder needs to detects if any error returns from snprintf() and if
so needs to directly bail out.  If snprintf() returns success, it needs
to update buffer pointer and reduce the buffer length so can continue to
output the next string into the consequent memory space.

This complex logics are spreading in the function arm_spe_pkt_desc() so
there has many duplicate codes for handling error detecting, increment
buffer pointer and decrement buffer size.

To avoid the duplicate code, this patch introduces a new helper function
arm_spe_pkt_out_string() which is used to wrap up the complex logics,
and it's used by the caller arm_spe_pkt_desc().  This patch moves the
variable 'blen' as the function's local variable so allows to remove
the unnecessary braces and improve the readability.

This patch simplifies the return value for arm_spe_pkt_desc(): '0' means
success and other values mean an error has occurred.  To realize this,
it relies on arm_spe_pkt_out_string()'s parameter 'err', the 'err' is a
cumulative value, returns its final value if printing buffer is called
for one time or multiple times.  Finally, the error is handled in a
central place, rather than directly bailing out in switch-cases, it
returns error at the end of arm_spe_pkt_desc().

This patch changes the caller arm_spe_dump() to respect the updated
return value semantics of arm_spe_pkt_desc().

Suggested-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wei Li <liwei391@huawei.com>
Link: https://lore.kernel.org/r/20201119152441.6972-2-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-26 09:31:23 -03:00
Daniel Abrecht
c70582bbf2 drm: mxsfb: Implement .format_mod_supported
This will make sure applications which use the IN_FORMATS blob
to figure out which modifiers they can use will pick up the
linear modifier which is needed by mxsfb. Such applications
will not work otherwise if an incompatible implicit modifier
ends up being selected.

Before commit ae1ed00932 ("drm: mxsfb: Stop using DRM simple
display pipeline helper"), the DRM simple display pipeline
helper took care of this.

Signed-off-by: Daniel Abrecht <public@danielabrecht.ch>
Fixes: ae1ed00932 ("drm: mxsfb: Stop using DRM simple display pipeline helper")
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/2a99ffffc2378209307e0992a6e97e70@nodmarc.danielabrecht.ch
2020-11-26 13:30:57 +01:00
Lucas Stach
777ee15e88 drm: mxsfb: fix fence synchronization
The conversion away from the simple display pipeline helper missed
to convert the prepare_fb plane callback, so no fences are attached to
the atomic state, breaking synchronization with other devices. Fix
this by plugging in the drm_gem_fb_prepare_fb helper function.

Fixes: ae1ed00932 ("drm: mxsfb: Stop using DRM simple display pipeline helper")
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20201120211306.325841-1-l.stach@pengutronix.de
2020-11-26 13:30:18 +01:00
Peter Zijlstra
20c7775aec Merge remote-tracking branch 'origin/master' into perf/core
Further perf/core patches will depend on:

  d3f7b1bb20 ("mm/gup: fix gup_fast with dynamic page table folding")

which is already in Linus' tree.
2020-11-26 13:16:55 +01:00
Sean Christopherson
8539d3f067 x86/asm: Drop unused RDPID macro
Drop the GAS-compatible RDPID macro. RDPID is unsafe in the kernel
because KVM loads guest's TSC_AUX on VM-entry and may not restore the
host's value until the CPU returns to userspace.

See

  6a3ea3e68b ("x86/entry/64: Do not use RDPID in paranoid entry to accomodate KVM")

for details.

It can always be resurrected from git history, if needed.

 [ bp: Massage commit message. ]

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20201027214532.1792-1-sean.j.christopherson@intel.com
2020-11-26 12:58:56 +01:00
Justin Ernst
9a3c425cfd x86/platform/uv: Add and export uv_bios_* functions
Add additional uv_bios_call() variant functions to expose information
needed by the new uv_sysfs driver. This includes the addition of several
new data types defined by UV BIOS and used in the new functions.

Signed-off-by: Justin Ernst <justin.ernst@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lkml.kernel.org/r/20201125175444.279074-3-justin.ernst@hpe.com
2020-11-26 12:50:44 +01:00
Justin Ernst
8f061abbf5 x86/platform/uv: Remove existing /sys/firmware/sgi_uv/ interface
Remove existing interface at /sys/firmware/sgi_uv/, created by
arch/x86/platform/uv/uv_sysfs.c

This interface includes:
/sys/firmware/sgi_uv/coherence_id
/sys/firmware/sgi_uv/partition_id

Both coherence_id and partition_id will be re-introduced via a
new uv_sysfs driver.

Signed-off-by: Justin Ernst <justin.ernst@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lkml.kernel.org/r/20201125175444.279074-2-justin.ernst@hpe.com
2020-11-26 12:08:17 +01:00
Bill Wendling
f47462c9d8 powerpc: Work around inline asm issues in alternate feature sections
The clang toolchain treats inline assembly a bit differently than
straight assembly code. In particular, inline assembly doesn't have
the complete context available to resolve expressions. This is
intentional to avoid divergence in the resulting assembly code.

We can work around this issue by borrowing a workaround done for ARM,
i.e. not directly testing the labels themselves, but by moving the
current output pointer by a value that should always be zero. If this
value is not null, then we will trigger a backward move, which is
explicitly forbidden.

Signed-off-by: Bill Wendling <morbo@google.com>
[mpe: Put it in a macro and only do the workaround for clang]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201120224034.191382-4-morbo@google.com
2020-11-26 22:05:43 +11:00
Bill Wendling
215fadfe87 powerpc/boot: Use clang when CC is clang
The gcc compiler may not be available if CC is clang.

Signed-off-by: Bill Wendling <morbo@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201120224034.191382-3-morbo@google.com
2020-11-26 22:05:43 +11:00
Bill Wendling
4c078c86b4 powerpc/boot/wrapper: Add "-z notext" flag to disable diagnostic
The "-z notext" flag disables reporting an error if DT_TEXTREL is set.

  ld.lld: error: can't create dynamic relocation R_PPC64_ADDR64 against
    symbol: _start in readonly segment; recompile object files with
    -fPIC or pass '-Wl,-z,notext' to allow text relocations in the
    output
  >>> defined in
  >>> referenced by crt0.o:(.text+0x8) in archive arch/powerpc/boot/wrapper.a

The BFD linker disables this by default (though it's configurable in
current versions). LLD enables this by default. So we add the flag to
keep LLD from emitting the error.

Signed-off-by: Bill Wendling <morbo@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201120224034.191382-2-morbo@google.com
2020-11-26 22:05:43 +11:00
Bill Wendling
26ba9f9651 powerpc/boot/wrapper: Add "-z rodynamic" when using LLD
Normally all read-only sections precede SHF_WRITE sections. .dynamic
and .got have the SHF_WRITE flag; .dynamic probably because of
DT_DEBUG. LLD emits an error when this happens, so use "-z rodynamic"
to mark .dynamic as read-only.

Signed-off-by: Bill Wendling <morbo@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201118223910.2711337-1-morbo@google.com
2020-11-26 22:05:43 +11:00
Bill Wendling
a538d184e3 powerpc/boot: Move the .got section to after the .dynamic section
Both .dynamic and .got are RELRO sections and should be placed
together, and LLD emits an error:

  ld.lld: error: section: .got is not contiguous with other relro sections

Place them together to avoid this.

Signed-off-by: Bill Wendling <morbo@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201017000151.150788-1-morbo@google.com
2020-11-26 22:05:42 +11:00
Oleg Nesterov
324a69467f powerpc/ptrace: Hard wire PT_SOFTE value to 1 in gpr_get() too
The commit a8a4b03ab9 ("powerpc: Hard wire PT_SOFTE value to 1 in
ptrace & signals") changed ptrace_get_reg(PT_SOFTE) to report 0x1,
but PTRACE_GETREGS still copies pt_regs->softe as is.

This is not consistent and this breaks the user-regs-peekpoke test
from https://sourceware.org/systemtap/wiki/utrace/tests/

Reported-by: Jan Kratochvil <jan.kratochvil@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201119160247.GB5188@redhat.com
2020-11-26 22:05:42 +11:00
Oleg Nesterov
640586f8af powerpc/ptrace: Simplify gpr_get()/tm_cgpr_get()
gpr_get() does membuf_write() twice to override pt_regs->msr in
between. We can call membuf_write() once and change ->msr in the
kernel buffer, this simplifies the code and the next fix.

The patch adds a new simple helper, membuf_at(offs), it returns the
new membuf which can be safely used after membuf_write().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
[mpe: Fixup some minor whitespace issues noticed by Christophe]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201119160221.GA5188@redhat.com
2020-11-26 22:05:42 +11:00
Chris Wilson
b3bf99daae drm/i915/display: Defer initial modeset until after GGTT is initialised
Prior to sanitizing the GGTT, the only operations allowed in
intel_display_init_nogem() are those to reserve the preallocated (and
active) regions in the GGTT leftover from the BIOS. Trying to allocate a
GGTT vma (such as intel_pin_and_fence_fb_obj during the initial modeset)
may then conflict with other preallocated regions that have not yet been
protected.

Move the initial modesetting from the end of init_nogem to the beginning
of init so that any vma pinning (either framebuffers or DSB, for example),
is after the GGTT is ready to handle it.

This will prevent the DSB object from being destroyed too early:

[   53.449241] BUG: KASAN: use-after-free in i915_init_ggtt+0x324/0x9e0 [i915]
[   53.449309] Read of size 8 at addr ffff88811b1e8070 by task systemd-udevd/345

[   53.449399] CPU: 1 PID: 345 Comm: systemd-udevd Tainted: G        W         5.10.0-rc5+ #12
[   53.449409] Call Trace:
[   53.449418]  dump_stack+0x9a/0xcc
[   53.449558]  ? i915_init_ggtt+0x324/0x9e0 [i915]
[   53.449565]  print_address_description.constprop.0+0x3e/0x60
[   53.449577]  ? _raw_spin_lock_irqsave+0x4e/0x50
[   53.449718]  ? i915_init_ggtt+0x324/0x9e0 [i915]
[   53.449849]  ? i915_init_ggtt+0x324/0x9e0 [i915]
[   53.449857]  kasan_report.cold+0x1f/0x37
[   53.449993]  ? i915_init_ggtt+0x324/0x9e0 [i915]
[   53.450130]  i915_init_ggtt+0x324/0x9e0 [i915]
[   53.450273]  ? i915_ggtt_suspend+0x1f0/0x1f0 [i915]
[   53.450281]  ? static_obj+0x69/0x80
[   53.450289]  ? lockdep_init_map_waits+0xa9/0x310
[   53.450431]  ? intel_wopcm_init+0x96/0x3d0 [i915]
[   53.450581]  ? i915_gem_init+0x75/0x2d0 [i915]
[   53.450720]  i915_gem_init+0x75/0x2d0 [i915]
[   53.450852]  i915_driver_probe+0x8c2/0x1210 [i915]
[   53.450993]  ? i915_pm_prepare+0x630/0x630 [i915]
[   53.451006]  ? check_chain_key+0x1e7/0x2e0
[   53.451025]  ? __pm_runtime_resume+0x58/0xb0
[   53.451157]  i915_pci_probe+0xa6/0x2b0 [i915]
[   53.451285]  ? i915_pci_remove+0x40/0x40 [i915]
[   53.451295]  ? lockdep_hardirqs_on_prepare+0x124/0x230
[   53.451302]  ? _raw_spin_unlock_irqrestore+0x42/0x50
[   53.451309]  ? lockdep_hardirqs_on+0xbf/0x130
[   53.451315]  ? preempt_count_sub+0xf/0xb0
[   53.451321]  ? _raw_spin_unlock_irqrestore+0x2f/0x50
[   53.451335]  pci_device_probe+0xf9/0x190
[   53.451350]  really_probe+0x17f/0x5b0
[   53.451365]  driver_probe_device+0x13a/0x1c0
[   53.451376]  device_driver_attach+0x82/0x90
[   53.451386]  ? device_driver_attach+0x90/0x90
[   53.451391]  __driver_attach+0xab/0x190
[   53.451401]  ? device_driver_attach+0x90/0x90
[   53.451407]  bus_for_each_dev+0xe4/0x140
[   53.451414]  ? subsys_dev_iter_exit+0x10/0x10
[   53.451423]  ? __list_add_valid+0x2b/0xa0
[   53.451440]  bus_add_driver+0x227/0x2e0
[   53.451454]  driver_register+0xd3/0x150
[   53.451585]  i915_init+0x92/0xac [i915]
[   53.451592]  ? 0xffffffffa0a20000
[   53.451598]  do_one_initcall+0xb6/0x3b0
[   53.451606]  ? trace_event_raw_event_initcall_finish+0x150/0x150
[   53.451614]  ? __kasan_kmalloc.constprop.0+0xc2/0xd0
[   53.451627]  ? kmem_cache_alloc_trace+0x4a4/0x8e0
[   53.451634]  ? kasan_unpoison_shadow+0x33/0x40
[   53.451649]  do_init_module+0xf8/0x350
[   53.451662]  load_module+0x43de/0x47f0
[   53.451716]  ? module_frob_arch_sections+0x20/0x20
[   53.451731]  ? rw_verify_area+0x5f/0x130
[   53.451780]  ? __do_sys_finit_module+0x10d/0x1a0
[   53.451785]  __do_sys_finit_module+0x10d/0x1a0
[   53.451792]  ? __ia32_sys_init_module+0x40/0x40
[   53.451800]  ? seccomp_do_user_notification.isra.0+0x5c0/0x5c0
[   53.451829]  ? rcu_read_lock_bh_held+0xb0/0xb0
[   53.451835]  ? mark_held_locks+0x24/0x90
[   53.451856]  do_syscall_64+0x33/0x80
[   53.451863]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   53.451868] RIP: 0033:0x7fde09b4470d
[   53.451875] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 53 f7 0c 00 f7 d8 64 89 01 48
[   53.451880] RSP: 002b:00007ffd6abc1718 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   53.451890] RAX: ffffffffffffffda RBX: 000056444e528150 RCX: 00007fde09b4470d
[   53.451895] RDX: 0000000000000000 RSI: 00007fde09a21ded RDI: 000000000000000f
[   53.451899] RBP: 0000000000020000 R08: 0000000000000000 R09: 0000000000000000
[   53.451904] R10: 000000000000000f R11: 0000000000000246 R12: 00007fde09a21ded
[   53.451909] R13: 0000000000000000 R14: 000056444e329200 R15: 000056444e528150

[   53.451957] Allocated by task 345:
[   53.451995]  kasan_save_stack+0x1b/0x40
[   53.452001]  __kasan_kmalloc.constprop.0+0xc2/0xd0
[   53.452006]  kmem_cache_alloc+0x1cd/0x8d0
[   53.452146]  i915_vma_instance+0x126/0xb70 [i915]
[   53.452304]  i915_gem_object_ggtt_pin_ww+0x222/0x3f0 [i915]
[   53.452446]  intel_dsb_prepare+0x14f/0x230 [i915]
[   53.452588]  intel_atomic_commit+0x183/0x690 [i915]
[   53.452730]  intel_initial_commit+0x2bc/0x2f0 [i915]
[   53.452871]  intel_modeset_init_nogem+0xa02/0x2af0 [i915]
[   53.452995]  i915_driver_probe+0x8af/0x1210 [i915]
[   53.453120]  i915_pci_probe+0xa6/0x2b0 [i915]
[   53.453125]  pci_device_probe+0xf9/0x190
[   53.453131]  really_probe+0x17f/0x5b0
[   53.453136]  driver_probe_device+0x13a/0x1c0
[   53.453142]  device_driver_attach+0x82/0x90
[   53.453148]  __driver_attach+0xab/0x190
[   53.453153]  bus_for_each_dev+0xe4/0x140
[   53.453158]  bus_add_driver+0x227/0x2e0
[   53.453164]  driver_register+0xd3/0x150
[   53.453286]  i915_init+0x92/0xac [i915]
[   53.453292]  do_one_initcall+0xb6/0x3b0
[   53.453297]  do_init_module+0xf8/0x350
[   53.453302]  load_module+0x43de/0x47f0
[   53.453307]  __do_sys_finit_module+0x10d/0x1a0
[   53.453312]  do_syscall_64+0x33/0x80
[   53.453318]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

[   53.453345] Freed by task 82:
[   53.453379]  kasan_save_stack+0x1b/0x40
[   53.453384]  kasan_set_track+0x1c/0x30
[   53.453389]  kasan_set_free_info+0x1b/0x30
[   53.453394]  __kasan_slab_free+0x112/0x160
[   53.453399]  kmem_cache_free+0xb2/0x3f0
[   53.453536]  i915_gem_flush_free_objects+0x31a/0x3b0 [i915]
[   53.453542]  process_one_work+0x519/0x9f0
[   53.453547]  worker_thread+0x75/0x5c0
[   53.453552]  kthread+0x1da/0x230
[   53.453557]  ret_from_fork+0x22/0x30

[   53.453584] The buggy address belongs to the object at ffff88811b1e8040
                which belongs to the cache i915_vma of size 968
[   53.453692] The buggy address is located 48 bytes inside of
                968-byte region [ffff88811b1e8040, ffff88811b1e8408)
[   53.453792] The buggy address belongs to the page:
[   53.453842] page:00000000b35f7048 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88811b1ef940 pfn:0x11b1e8
[   53.453847] head:00000000b35f7048 order:3 compound_mapcount:0 compound_pincount:0
[   53.453853] flags: 0x8000000000010200(slab|head)
[   53.453860] raw: 8000000000010200 ffff888115596248 ffff888115596248 ffff8881155b6340
[   53.453866] raw: ffff88811b1ef940 0000000000170001 00000001ffffffff 0000000000000000
[   53.453870] page dumped because: kasan: bad access detected

[   53.453895] Memory state around the buggy address:
[   53.453944]  ffff88811b1e7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   53.454011]  ffff88811b1e7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   53.454079] >ffff88811b1e8000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[   53.454146]                                                              ^
[   53.454211]  ffff88811b1e8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   53.454279]  ffff88811b1e8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   53.454347] ==================================================================
[   53.454414] Disabling lock debugging due to kernel taint
[   53.454434] general protection fault, probably for non-canonical address 0xdead0000000000d0: 0000 [#1] PREEMPT SMP KASAN PTI
[   53.454446] CPU: 1 PID: 345 Comm: systemd-udevd Tainted: G    B   W         5.10.0-rc5+ #12
[   53.454592] RIP: 0010:i915_init_ggtt+0x26f/0x9e0 [i915]
[   53.454602] Code: 89 8d 48 ff ff ff 4c 8d 60 d0 49 39 c7 0f 84 37 02 00 00 4c 89 b5 40 ff ff ff 4d 8d bc 24 90 00 00 00 4c 89 ff e8 c1 97 f8 e0 <49> 83 bc 24 90 00 00 00 00 0f 84 0f 02 00 00 49 8d 7c 24 08 e8 a8
[   53.454618] RSP: 0018:ffff88812247f430 EFLAGS: 00010286
[   53.454625] RAX: 0000000000000000 RBX: ffff888136440000 RCX: ffffffffa03fb78f
[   53.454633] RDX: 0000000000000000 RSI: 0000000000000008 RDI: dead000000000160
[   53.454641] RBP: ffff88812247f500 R08: ffffffff8113589f R09: 0000000000000000
[   53.454648] R10: ffffffff83063843 R11: fffffbfff060c708 R12: dead0000000000d0
[   53.454656] R13: ffff888136449ba0 R14: 0000000000002000 R15: dead000000000160
[   53.454664] FS:  00007fde095c4880(0000) GS:ffff88840c880000(0000) knlGS:0000000000000000
[   53.454672] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   53.454679] CR2: 00007fef132b4f28 CR3: 000000012245c002 CR4: 00000000003706e0
[   53.454686] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   53.454693] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   53.454700] Call Trace:
[   53.454833]  ? i915_ggtt_suspend+0x1f0/0x1f0 [i915]

Reported-by: Matthew Auld <matthew.auld@intel.com>
Fixes: afeda4f3b1 ("drm/i915/dsb: Pre allocate and late cleanup of cmd buffer")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Tested-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201125193032.29282-1-chris@chris-wilson.co.uk
2020-11-26 11:01:52 +00:00
Marc Kleine-Budde
1a1c436bad can: mcp251xfd: mcp251xfd_probe(): bail out if no IRQ was given
This patch add a check to the mcp251xfd_probe() function to bail out and give
the user a proper error message if no IRQ is specified. Otherwise the driver
will probe just fine but ifup will fail with a meaningless "RTNETLINK answers:
Invalid argument" error message.

Link: https://lore.kernel.org/r/20201123113522.3820052-1-mkl@pengutronix.de
Reported-by: Niels Petter <petter@ka-long.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2020-11-26 11:50:32 +01:00
Marc Kleine-Budde
4ba1cb39fc can: gs_usb: fix endianess problem with candleLight firmware
The firmware on the original USB2CAN by Geschwister Schneider Technologie
Entwicklungs- und Vertriebs UG exchanges all data between the host and the
device in host byte order. This is done with the struct
gs_host_config::byte_order member, which is sent first to indicate the desired
byte order.

The widely used open source firmware candleLight doesn't support this feature
and exchanges the data in little endian byte order. This breaks if a device
with candleLight firmware is used on big endianess systems.

To fix this problem, all u32 (but not the struct gs_host_frame::echo_id, which
is a transparent cookie) are converted to __le32.

Cc: Maximilian Schneider <max@schneidersoft.net>
Cc: Hubert Denkmair <hubert@denkmair.de>
Reported-by: Michael Rausch <mr@netadair.de>
Link: https://lore.kernel.org/r/b58aace7-61f3-6df7-c6df-69fee2c66906@netadair.de
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Fixes: d08e973a77 ("can: gs_usb: Added support for the GS_USB CAN devices")
Link: https://lore.kernel.org/r/20201120103818.3386964-1-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2020-11-26 11:50:32 +01:00
Laurentiu Palcu
05faf1559d drm/imx/dcss: allow using nearest neighbor interpolation scaling
This patch adds support for using NN interpolation scaling by setting the
SCALING_FILTER plane property to 1. Otherwise, the default method is used.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105145018.27255-1-laurentiu.palcu@oss.nxp.com
2020-11-26 11:29:44 +01:00
Laurentiu Palcu
594486b52c drm/imx/dcss: fix coccinelle warning
This small patch fixes a warning that I got while running coccinelle:

  CHECK   drivers/gpu/drm/imx/dcss/dcss-plane.c
  drivers/gpu/drm/imx/dcss/dcss-plane.c:107:21-23: WARNING !A || A && B is equivalent to !A || B

Fixes: 9021c317b7 ("drm/imx: Add initial support for DCSS on iMX8MQ")
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105140127.25249-3-laurentiu.palcu@oss.nxp.com
2020-11-26 11:29:40 +01:00
Laurentiu Palcu
59cb403f38 drm/imx/dcss: fix rotations for Vivante tiled formats
DCSS supports 90/180/270 degree rotations for Vivante tiled and super-tiled
formats. Unfortunately, with the current code, they didn't work properly.

This simple patch makes the rotations work by fixing the way the scaler is set
up for 90/270 degree rotations. In this particular case, the source width and
height need to be swapped since DPR is sending the buffer to scaler already
rotated.

Also, make sure to allow full rotations for DRM_FORMAT_MOD_VIVANTE_SUPER_TILED.

Fixes: 9021c317b7 ("drm/imx: Add initial support for DCSS on iMX8MQ")
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105140127.25249-2-laurentiu.palcu@oss.nxp.com
2020-11-26 11:29:18 +01:00
Lu Baolu
62c9917d9c iommu: Fix htmldocs warnings in sysfs-kernel-iommu_groups
Below warnings are fixed:

Documentation/ABI/testing/sysfs-kernel-iommu_groups:38: WARNING: Unexpected indentation.
Documentation/ABI/testing/sysfs-kernel-iommu_groups:38: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/ABI/testing/sysfs-kernel-iommu_groups:38: WARNING: Enumerated list ends without a blank line; unexpected unindent.
Documentation/ABI/testing/sysfs-kernel-iommu_groups:38: WARNING: Unexpected indentation.
Documentation/ABI/testing/sysfs-kernel-iommu_groups:38: WARNING: Block quote ends without a blank line; unexpected unindent.

Fixes: 63a816749d ("iommu: Document usage of "/sys/kernel/iommu_groups/<grp_id>/type" file")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://lore.kernel.org/linux-next/20201126174851.200e0e58@canb.auug.org.au/
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20201126090603.1511589-1-baolu.lu@linux.intel.com
Signed-off-by: Will Deacon <will@kernel.org>
2020-11-26 09:48:50 +00:00
Prashant Malani
2e70c495ca usb: typec: Expose Product Type VDOs via sysfs
A PD-capable device can return up to 3 Product Type VDOs as part of its
DiscoverIdentity Response (USB PD Spec, Rev 3.0, Version 2.0, Section
6.4.4.3.1). Add sysfs attributes to expose these to userspace.

Cc: Benson Leung <bleung@chromium.org>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20201125084911.1077462-2-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:21:13 +01:00
Prashant Malani
fd2c35b2f5 usb: typec: Consolidate sysfs ABI documentation
Both partner and cable have identity VDOs. These are listed separately
in the Documentation/ABI/testing/sysfs-class-typec. Factor these out
into a common location to avoid the duplication.

Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20201125084911.1077462-1-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:21:13 +01:00
Heikki Krogerus
7656ca71b0 usb: pd: DFP product types
USB Power Delivery Specification R3.0 introduced separate
field for the DFP product type to the ID Header VDO.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201125120642.37156-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:18:56 +01:00
Linus Walleij
f3ef38160e usb: isp1301-omap: Convert to use GPIO descriptors
This modernized the ISP1301 a bit by switching it to provide
a GPIO descriptor from the H2 board if used.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20201123102346.48284-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:15:31 +01:00
Sergio Paracuellos
1de16e38f1 staging: mt7621-pci: remove 'RALINK_PCI_IMBASEBAR0_ADDR' register
Register 'RALINK_PCI_IMBASEBAR0_ADDR' contains internal memory
base address for BAR0. We don't really need to write anything
there at all since its initial value contains always a desired
valid value. Hence remove register definition and related code.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20201123093637.8300-8-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:12:18 +01:00
Sergio Paracuellos
108b2f2a97 staging: mt7621-pci: convert to use 'devm_platform_ioremap_resource'
Instead of getting resources parsing from DT first and remaping
afterwards, this can be done in one step using the kernel function
'devm_platform_ioremap_resource'. Hence, update to use it.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20201123093637.8300-7-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:12:18 +01:00
Sergio Paracuellos
2fc0898bf3 staging: mt7621-pci: parse and prepare resources in 'mt7621_pci_parse_request_of_pci_ranges'
Remove 'mt7621_pcie_add_resources' where resources are added to the host
windows moving this code into the function where all the parsing and
preparing code is being done: 'mt7621_pci_parse_request_of_pci_ranges'.
The memory resource has been properly parsed for the PCI APIs so we
only need to retrieve it and use it in those places we need.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20201123093637.8300-6-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:12:18 +01:00
Sergio Paracuellos
8713094e5b staging: mt7621-pci: review 'pci_host_bridge' assigned variables
PCI kernel apis now set some variables related with pci_host_bridge
by default and it is not necessary to setup them in driver code.
Host bridge parent device is set by default to the platform device
and 'swizzle_irq' is also set to its default function. These two
are not necessary to be set here. Hence remove them.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20201123093637.8300-5-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:12:18 +01:00
Sergio Paracuellos
301c7ed522 staging: mt7621-pci: add comment to clarify IO resource in this driver
Because IO_SPACE_LIMIT for mips is 0xFFFF but this platform uses
PĈI IO resource at 0x001e160000. Hence instead of directly use
some more accurate functions from the PCI kernel for this driver
some things must be done in a different way to make things work.
Add this explanation as a comment where the IO resource is parsed
and virtually mapped into memory.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20201123093637.8300-4-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:12:18 +01:00
Sergio Paracuellos
d7dcee38cb staging: mt7621-pci: remove 'offset' with mem and io resource sizes
Offset contains resources size for both io and memory resources.
Those fields are directly initialized to zero and set up using
'pci_add_resource_offset' function. Instead of doing that remove
them and use directly function 'pci_add_resource' where zero is
passed directly to its internal call to 'pci_add_resource_offset'.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20201123093637.8300-3-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:12:18 +01:00
Sergio Paracuellos
0438fb0982 staging: mt7621-pci: remove bus ranges related code
Bus ranges are now discovered by default. Hence remove
its related code from the driver.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20201123093637.8300-2-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:12:18 +01:00
Mathieu Poirier
c7acb6b9c0 MAINTAINERS: Adding help for coresight subsystem
With the steady stream of new features coming into the subsystem
it has been clear for some time now that help is needed.

Suzuki and Leo have worked extensively on various parts of the
project and have agreed to help.

While at it add the new location for the coresight git tree.

Acked-by: Leo Yan <leo.yan@linaro.org>
Acked-by : Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201125223519.734388-1-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-26 09:09:18 +01:00
Dave Airlie
b51c2c67ce - Fix Perf/OA workaround register corruption (Lionel)
- Correct a comment statement in GVT (Yan)
 - Fix GT enable/disable iterrupts, including a race condition that prevented GPU to go idle (Chris)
 - Free stale request on destroying the virtual engine (Chris)
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Merge tag 'drm-intel-fixes-2020-11-25' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix Perf/OA workaround register corruption (Lionel)
- Correct a comment statement in GVT (Yan)
- Fix GT enable/disable iterrupts, including a race condition that prevented GPU to go idle (Chris)
- Free stale request on destroying the virtual engine (Chris)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201126010623.GA827684@intel.com
2020-11-26 17:58:14 +10:00
Dave Airlie
5ead67bd54 Merge tag 'amd-drm-fixes-5.10-2020-11-25' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.10-2020-11-25:

amdgpu:
- Runtime pm fix
- SI UVD suspend/resume fix
- HDCP fix for headless cards
- Sienna Cichlid golden register update

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201125151145.4263-1-alexander.deucher@amd.com
2020-11-26 17:31:48 +10:00
Mauro Carvalho Chehab
44f28934af media: vidtv.rst: add kernel-doc markups
Fix existing issues at the kernel-doc markups and add them to
the vidtv.rst file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-11-26 08:05:24 +01:00
Mauro Carvalho Chehab
020120af21 media: vidtv.rst: update vidtv documentation
Update the vidtv documentation with the relevant changes
after the last patches.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-11-26 08:05:24 +01:00
Mauro Carvalho Chehab
b087982886 media: vidtv: simplify EIT write function
- pass struct vidtv_psi_eit_write_args as a pointer;
- avoid initializing struct fields multiple times.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-11-26 08:05:24 +01:00
Mauro Carvalho Chehab
5a5b9fb1a1 media: vidtv: simplify NIT write function
- pass struct vidtv_psi_nit_write_args as a pointer;
- avoid initializing struct fields multiple times.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-11-26 08:05:24 +01:00
Mauro Carvalho Chehab
6286a4b79b media: vidtv: simplify SDT write function
- pass struct vidtv_psi_sdt_write_args as a pointer;
- avoid initializing struct fields multiple times.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-11-26 08:05:24 +01:00
Mauro Carvalho Chehab
db9569f67e media: vidtv: cleanup PMT write table function
- Pass struct vidtv_psi_pmt_write_args as a pointer;
- Avoid initializing structs multiple times.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-11-26 08:05:24 +01:00
Mauro Carvalho Chehab
7f95751519 media: vidtv: cleanup PAT write function
Avoid initializing the structs multiple times and pass the
PAT struct as a pointer, instead of a var.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-11-26 08:05:24 +01:00