Commit graph

1,234,844 commits

Author SHA1 Message Date
Brent Lu
d8fc817632
ASoC: Intel: sof_rt5682: use sof_hdmi_private to init HDMI
Use sof_hdmi_private structure instead of a link list of sof_hdmi_pcm
structure for HDMI dai link initialization since hdac-hdmi support is
removed.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-17-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:58 +01:00
Brent Lu
44267e97d0
ASoC: Intel: sof_nau8825: use sof_hdmi_private to init HDMI
Use sof_hdmi_private structure instead of a link list of sof_hdmi_pcm
structure for HDMI dai link initialization since hdac-hdmi support is
removed.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-16-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:57 +01:00
Brent Lu
fa76fcad1d
ASoC: Intel: sof_da7219: use sof_hdmi_private to init HDMI
Use sof_hdmi_private structure instead of a link list of sof_hdmi_pcm
structure for HDMI dai link initialization since hdac-hdmi support is
removed.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-15-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:56 +01:00
Brent Lu
9b61ac56dd
ASoC: Intel: sof_cs42l42: use sof_hdmi_private to init HDMI
Use sof_hdmi_private structure instead of a link list of sof_hdmi_pcm
structure for HDMI dai link initialization since hdac-hdmi support is
removed.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-14-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:55 +01:00
Brent Lu
3ceb66edd6
ASoC: Intel: sof_hdmi: add common header for HDMI
Add a common header for Intel HDMI dai link (idisp) initialization.
Declare the sof_hdmi_private structure in machine driver private data
and use it to initialize dai link.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-13-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:54 +01:00
Brent Lu
64b9f31186
ASoC: Intel: sof_ssp_amp: remove hdac-hdmi support
Remove hdac-hdmi support code since we are now using
snd-hda-codec-hdmi codec driver for hdmi.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-12-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:53 +01:00
Brent Lu
3de206a431
ASoC: Intel: sof_rt5682: remove hdac-hdmi support
Remove hdac-hdmi support code since we are now using
snd-hda-codec-hdmi codec driver for hdmi.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:52 +01:00
Brent Lu
3f95969ec4
ASoC: Intel: sof_nau8825: remove hdac-hdmi support
Remove hdac-hdmi support code since we are now using
snd-hda-codec-hdmi codec driver for hdmi.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-10-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:51 +01:00
Brent Lu
b6019b5830
ASoC: Intel: sof_da7219: remove hdac-hdmi support
Remove hdac-hdmi support code since we are now using
snd-hda-codec-hdmi codec driver for hdmi.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-9-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:50 +01:00
Brent Lu
8e7377d66e
ASoC: Intel: sof_cs42l42: remove hdac-hdmi support
Remove hdac-hdmi support code since we are now using
snd-hda-codec-hdmi codec driver for hdmi.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:49 +01:00
Bard Liao
5124d08d0e
ASoC: Intel: sof_sdw_rt712_sdca: construct cards->components by name_prefix
sof_sdw_rt712_sdca is used by rt712 and rt713. Using different
cards->components string allow UCM distinguish the two codecs.

Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:48 +01:00
Balamurugan C
e5bc0a5088
ASoC: Intel: MTL: Add entry for HDMI-In capture support to non-I2S codec boards.
Adding HDMI-In capture support for the MTL products which doesn't have
onboard I2S codec. But need to support HDMI-In capture via I2S and
audio playback through HDMI/DP monitor.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Balamurugan C <balamurugan.c@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:47 +01:00
Bard Liao
b6d6e5abf6
ASoC: Intel: sof_sdw_rt_sdca_jack_common: add rt713 support
Adding rt713 support to sof_sdw_rt_sdca_jack_common.c.

Fixes: fbaaf80d8c ("ASoC: Intel: sof_sdw: add rt713 support")
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:46 +01:00
Bard Liao
e70ca580e9
ASoC: Intel: soc-acpi-intel-mtl-match: add rt713 rt1316 config
Adding rt713 jack + rt1316 amp + rt1713 dmic configuration support.

Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:45 +01:00
Bard Liao
43e354dada
ASoC: Intel: soc-acpi-intel-rpl-match: add rt711-l0-rt1316-l12 support
Another configuration that doesn't support DMIC.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:45 +01:00
Pierre-Louis Bossart
a5172ef251
ASoC: Intel: sof_sdw: update HP Omen match
New platforms have a slightly different DMI product name, remove
trailing characters/digits to handle all cases.

Closes: https://github.com/thesofproject/linux/issues/4611
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20231012190826.142619-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-12 20:27:44 +01:00
Thomas Weißschuh
b8c60e8fc6 selftests/nolibc: add tests for multi-object linkage
While uncommon, nolibc executables can be linked together from multiple
compilation units.
Add some tests to make sure everything works in that case.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/lkml/20231012-nolibc-linkage-test-v1-1-315e682768b4@weissschuh.net/
Acked-by: Willy Tarreau <w@1wt.eu>
2023-10-12 21:14:20 +02:00
Thomas Weißschuh
17362f3d0b selftests/nolibc: use qemu-system-ppc64 for ppc64le
qemu-system-ppc64 can handle both big and little endian kernels.

While some setups, like Debian, provide a symlink to execute
qemu-system-ppc64 as qemu-system-ppc64le, others, like ArchLinux, do not.

So always use qemu-system-ppc64 directly.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/lkml/20231008-nolibc-qemu-ppc64-v1-1-29e2326e0420@weissschuh.net/
Acked-by: Willy Tarreau <w@1wt.eu>
2023-10-12 21:14:19 +02:00
Thomas Weißschuh
63aa531716 tools/nolibc: add support for constructors and destructors
With the startup code moved to C, implementing support for
constructors and deconstructors is fairly easy to implement.

Examples for code size impact:

   text	   data	    bss	    dec	    hex	filename
  21837	    104	     88	  22029	   560d	nolibc-test.before
  22135	    120	     88	  22343	   5747	nolibc-test.after
  21970	    104	     88	  22162	   5692 nolibc-test.after-only-crt.h-changes

The sections are defined by [0].

[0] https://refspecs.linuxfoundation.org/elf/gabi4+/ch5.dynamic.html

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/lkml/20231007-nolibc-constructors-v2-1-ef84693efbc1@weissschuh.net/
2023-10-12 21:14:16 +02:00
Thomas Weißschuh
eddfc3c742 tools/nolibc: drop test for getauxval(AT_PAGESZ)
Other testcases are already testing the same functionality:
* auxv_AT_UID tests getauxval() in general.
* test_getpagesize() tests pagesize() which directly calls
  getauxval(AT_PAGESZ).

Link: https://lore.kernel.org/r/20231007-nolibc-auxval-pagesz-v1-1-af00804edead@weissschuh.net
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2023-10-12 21:14:15 +02:00
Thomas Weißschuh
eaa8c9a8b4 tools/nolibc: automatically detect necessity to use pselect6
We can automatically detect if pselect6 is needed or not from the kernel
headers. This removes the need to manually specify it.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20230917-nolibc-syscall-nr-v2-4-03863d509b9a@weissschuh.net
2023-10-12 21:14:13 +02:00
Thomas Weißschuh
e7b28f2516 tools/nolibc: don't define new syscall number
All symbols created by nolibc are also visible to user code.
Syscall constants are expected to come from the kernel headers and
should not be made up by nolibc.

Refactor the logic to avoid defining syscall numbers.
Also the new code is easier to understand.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20230917-nolibc-syscall-nr-v2-3-03863d509b9a@weissschuh.net
2023-10-12 21:14:12 +02:00
Thomas Weißschuh
535b70c143 tools/nolibc: avoid unused parameter warnings for ENOSYS fallbacks
The ENOSYS fallback code does not use its functions parameters.
This can lead to compiler warnings about unused parameters.

Explicitly avoid these warnings.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20230917-nolibc-syscall-nr-v2-2-03863d509b9a@weissschuh.net
2023-10-12 21:14:10 +02:00
Thomas Weißschuh
9531548675 selftests/nolibc: allow building i386 with multiarch compiler
When building with a multiarch-capable compiler, like those provided by
common distributions the -m32 argument is required to build 32bit code.

Wrap it in cc-option in case the compiler is not multiarch-capable.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20230917-nolibc-syscall-nr-v2-1-03863d509b9a@weissschuh.net
2023-10-12 21:14:09 +02:00
Thomas Weißschuh
45839d0991 selftests/nolibc: don't embed initramfs into kernel image
When the initramfs is embedded into the kernel each rebuild of it will
trigger a full kernel relink and all the expensive postprocessing steps.

Currently nolibc-test and therefore the initramfs are always rebuild,
even without source changes, leading to lots of slow kernel relinks.

Instead of linking the initramfs into the kernel assemble it manually
and pass it explicitly to qemu.
This avoids all of the kernel relinks.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Link: https://lore.kernel.org/r/20230917-nolibc-initramfs-v2-1-f0f293a8b198@weissschuh.net
2023-10-12 21:14:07 +02:00
Thomas Weißschuh
4ed03f639e selftests/nolibc: libc-test: avoid -Wstringop-overflow warnings
Newer versions of glibc annotate the poll() function with
__attribute__(access) which triggers a compiler warning inside the
testcase poll_fault.
Avoid this by using a plain NULL which is enough for the testcase.
To avoid potential future warnings also adapt the other EFAULT
testcases, except select_fault as NULL is a valid value for its
argument.

nolibc-test.c: In function ‘run_syscall’:
nolibc-test.c:338:62: warning: ‘poll’ writing 8 bytes into a region of size 0 overflows the destination [-Wstringop-overflow=]
  338 |         do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syserr2(expr, expret, experr1, experr2, llen); } while (0)
      |                                                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
nolibc-test.c:341:9: note: in expansion of macro ‘EXPECT_SYSER2’
  341 |         EXPECT_SYSER2(cond, expr, expret, experr, 0)
      |         ^~~~~~~~~~~~~
nolibc-test.c:905:47: note: in expansion of macro ‘EXPECT_SYSER’
  905 |                 CASE_TEST(poll_fault);        EXPECT_SYSER(1, poll((void *)1, 1, 0), -1, EFAULT); break;
      |                                               ^~~~~~~~~~~~
cc1: note: destination object is likely at address zero
In file included from /usr/include/poll.h:1,
                 from nolibc-test.c:33:
/usr/include/sys/poll.h:54:12: note: in a call to function ‘poll’ declared with attribute ‘access (write_only, 1, 2)’
   54 | extern int poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
      |            ^~~~

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2023-10-12 21:14:05 +02:00
Ammar Faizi
bc61614de0 tools/nolibc: string: Remove the _nolibc_memcpy_up() function
This function is only called by memcpy(), there is no real reason to
have this wrapper. Delete this function and move the code to memcpy()
directly.

Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Reviewed-by: Alviro Iskandar Setiawan <alviro.iskandar@gnuweeb.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2023-10-12 21:14:03 +02:00
Ammar Faizi
5dfc79b20e tools/nolibc: string: Remove the _nolibc_memcpy_down() function
This nolibc internal function is not used. Delete it. It was probably
supposed to handle memmove(), but today the memmove() has its own
implementation.

Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Reviewed-by: Alviro Iskandar Setiawan <alviro.iskandar@gnuweeb.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2023-10-12 21:14:02 +02:00
Ammar Faizi
12108aa8c1 tools/nolibc: x86-64: Use rep stosb for memset()
Simplify memset() on the x86-64 arch.

The x86-64 arch has a 'rep stosb' instruction, which can perform
memset() using only a single instruction, given:

    %al  = value (just like the second argument of memset())
    %rdi = destination
    %rcx = length

Before this patch:
```
  00000000000010c9 <memset>:
    10c9: 48 89 f8              mov    %rdi,%rax
    10cc: 48 85 d2              test   %rdx,%rdx
    10cf: 74 0e                 je     10df <memset+0x16>
    10d1: 31 c9                 xor    %ecx,%ecx
    10d3: 40 88 34 08           mov    %sil,(%rax,%rcx,1)
    10d7: 48 ff c1              inc    %rcx
    10da: 48 39 ca              cmp    %rcx,%rdx
    10dd: 75 f4                 jne    10d3 <memset+0xa>
    10df: c3                    ret
```

After this patch:
```
  0000000000001511 <memset>:
    1511: 96                    xchg   %eax,%esi
    1512: 48 89 d1              mov    %rdx,%rcx
    1515: 57                    push   %rdi
    1516: f3 aa                 rep stos %al,%es:(%rdi)
    1518: 58                    pop    %rax
    1519: c3                    ret
```

v2:
  - Use pushq %rdi / popq %rax (Alviro).
  - Use xchg %eax, %esi (Willy).

Link: https://lore.kernel.org/lkml/ZO9e6h2jjVIMpBJP@1wt.eu
Suggested-by: Alviro Iskandar Setiawan <alviro.iskandar@gnuweeb.org>
Suggested-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Reviewed-by: Alviro Iskandar Setiawan <alviro.iskandar@gnuweeb.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2023-10-12 21:14:00 +02:00
Ammar Faizi
553845eebd tools/nolibc: x86-64: Use rep movsb for memcpy() and memmove()
Simplify memcpy() and memmove() on the x86-64 arch.

The x86-64 arch has a 'rep movsb' instruction, which can perform
memcpy() using only a single instruction, given:

    %rdi = destination
    %rsi = source
    %rcx = length

Additionally, it can also handle the overlapping case by setting DF=1
(backward copy), which can be used as the memmove() implementation.

Before this patch:
```
  00000000000010ab <memmove>:
    10ab: 48 89 f8              mov    %rdi,%rax
    10ae: 31 c9                 xor    %ecx,%ecx
    10b0: 48 39 f7              cmp    %rsi,%rdi
    10b3: 48 83 d1 ff           adc    $0xffffffffffffffff,%rcx
    10b7: 48 85 d2              test   %rdx,%rdx
    10ba: 74 25                 je     10e1 <memmove+0x36>
    10bc: 48 83 c9 01           or     $0x1,%rcx
    10c0: 48 39 f0              cmp    %rsi,%rax
    10c3: 48 c7 c7 ff ff ff ff  mov    $0xffffffffffffffff,%rdi
    10ca: 48 0f 43 fa           cmovae %rdx,%rdi
    10ce: 48 01 cf              add    %rcx,%rdi
    10d1: 44 8a 04 3e           mov    (%rsi,%rdi,1),%r8b
    10d5: 44 88 04 38           mov    %r8b,(%rax,%rdi,1)
    10d9: 48 01 cf              add    %rcx,%rdi
    10dc: 48 ff ca              dec    %rdx
    10df: 75 f0                 jne    10d1 <memmove+0x26>
    10e1: c3                    ret

  00000000000010e2 <memcpy>:
    10e2: 48 89 f8              mov    %rdi,%rax
    10e5: 48 85 d2              test   %rdx,%rdx
    10e8: 74 12                 je     10fc <memcpy+0x1a>
    10ea: 31 c9                 xor    %ecx,%ecx
    10ec: 40 8a 3c 0e           mov    (%rsi,%rcx,1),%dil
    10f0: 40 88 3c 08           mov    %dil,(%rax,%rcx,1)
    10f4: 48 ff c1              inc    %rcx
    10f7: 48 39 ca              cmp    %rcx,%rdx
    10fa: 75 f0                 jne    10ec <memcpy+0xa>
    10fc: c3                    ret
```

After this patch:
```
  // memmove is an alias for memcpy
  000000000040133b <memcpy>:
    40133b: 48 89 d1              mov    %rdx,%rcx
    40133e: 48 89 f8              mov    %rdi,%rax
    401341: 48 89 fa              mov    %rdi,%rdx
    401344: 48 29 f2              sub    %rsi,%rdx
    401347: 48 39 ca              cmp    %rcx,%rdx
    40134a: 72 03                 jb     40134f <memcpy+0x14>
    40134c: f3 a4                 rep movsb %ds:(%rsi),%es:(%rdi)
    40134e: c3                    ret
    40134f: 48 8d 7c 0f ff        lea    -0x1(%rdi,%rcx,1),%rdi
    401354: 48 8d 74 0e ff        lea    -0x1(%rsi,%rcx,1),%rsi
    401359: fd                    std
    40135a: f3 a4                 rep movsb %ds:(%rsi),%es:(%rdi)
    40135c: fc                    cld
    40135d: c3                    ret
```

v3:
  - Make memmove as an alias for memcpy (Willy).
  - Make the forward copy the likely case (Alviro).

v2:
  - Fix the broken memmove implementation (David).

Link: https://lore.kernel.org/lkml/20230902062237.GA23141@1wt.eu
Link: https://lore.kernel.org/lkml/5a821292d96a4dbc84c96ccdc6b5b666@AcuMS.aculab.com
Suggested-by: David Laight <David.Laight@aculab.com>
Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2023-10-12 21:13:56 +02:00
Thomas Weißschuh
265fbb4be0 selftests/nolibc: use -nostdinc for nolibc-test
Avoid any accidental reliance on system includes.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Willy Tarreau <w@1wt.eu>
2023-10-12 21:13:55 +02:00
Thomas Weißschuh
b56a9492d0 tools/nolibc: add stdarg.h header
This allows nolic to work with `-nostdinc` avoiding any reliance on
system headers.

The implementation has been lifted from musl libc 1.2.4.
There is already an implementation of stdarg.h in include/linux/stdarg.h
but that is GPL licensed and therefore not suitable for nolibc.

The used compiler builtins have been validated to be at least available
since GCC 4.1.2 and clang 3.0.0.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Willy Tarreau <w@1wt.eu>
2023-10-12 21:13:52 +02:00
Thomas Weißschuh
921992229b tools/nolibc: mark start_c as weak
Otherwise the different instances of _start_c from each compilation unit
will lead to linker errors:

/usr/bin/ld: /tmp/ccSNvRqs.o: in function `_start_c':
nolibc-test-foo.c:(.text.nolibc_memset+0x9): multiple definition of `_start_c'; /tmp/ccG25101.o:nolibc-test.c:(.text+0x1ea3): first defined here

Fixes: 1733675515 ("tools/nolibc: add new crt.h with _start_c")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/lkml/20231012-nolibc-start_c-multiple-v1-1-fbfc73e0283f@weissschuh.net/
Link: https://lore.kernel.org/lkml/20231012-nolibc-linkage-test-v1-1-315e682768b4@weissschuh.net/
Acked-by: Willy Tarreau <w@1wt.eu>
2023-10-12 21:13:51 +02:00
Thomas Weißschuh
513bd2788e MAINTAINERS: nolibc: update tree location
The nolibc tree moved out of Willys user namespace into its own.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20230916-nolibc-tree-v1-1-06c9b59a5035@weissschuh.net
2023-10-12 21:13:50 +02:00
Ammar Faizi
d873a364ef tools/nolibc: i386: Fix a stack misalign bug on _start
The ABI mandates that the %esp register must be a multiple of 16 when
executing a 'call' instruction.

Commit 2ab446336b ("tools/nolibc: i386: shrink _start with _start_c")
simplified the _start function, but it didn't take care of the %esp
alignment, causing SIGSEGV on SSE and AVX programs that use aligned move
instruction (e.g., movdqa, movaps, and vmovdqa).

The 'and $-16, %esp' aligns the %esp at a multiple of 16. Then 'push
%eax' will subtract the %esp by 4; thus, it breaks the 16-byte
alignment. Make sure the %esp is correctly aligned after the push by
subtracting 12 before the push.

Extra:
Add 'add $12, %esp' before the 'and $-16, %esp' to avoid over-estimating
for particular cases as suggested by Willy.

A test program to validate the %esp alignment on _start can be found at:

   https://lore.kernel.org/lkml/ZOoindMFj1UKqo+s@biznet-home.integral.gnuweeb.org

[ Thomas: trim Fixes tag commit id ]

Cc: Zhangjin Wu <falcon@tinylab.org>
Fixes: 2ab446336b ("tools/nolibc: i386: shrink _start with _start_c")
Reported-by: Nicholas Rosenberg <inori@vnlx.org>
Acked-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Reviewed-by: Alviro Iskandar Setiawan <alviro.iskandar@gnuweeb.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
2023-10-12 21:10:37 +02:00
Srinivas Pandruvada
d4d27e5a1a selftests/thermel/intel: Add test to read power floor status
Some SoCs have firmware support to notify, if the system can't lower
power limit to a value requested from user space via RAPL constraints.

This test program waits for notification of power floor and prints. This
program can be used to test this feature and also allows other user space
programs to use as a reference.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-10-12 21:09:48 +02:00
Srinivas Pandruvada
0e50925392 thermal: int340x: processor_thermal: Enable power floor support
Enable power floor feature support for Meteor Lake processors.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-10-12 21:09:48 +02:00
Srinivas Pandruvada
8cd5ad18dd thermal: int340x: processor_thermal: Handle power floor interrupts
On thermal device interrupt, if the interrupt is generated for passing
power floor status, call the callback to pass notification to the user
space.

First call proc_thermal_check_power_floor_intr() to check interrupt, if
this callback returns true, wake the IRQ thread to call
proc_thermal_power_floor_intr_callback() to notify user space.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-10-12 21:09:48 +02:00
Srinivas Pandruvada
b473d6a9d6 thermal: int340x: processor_thermal: Support power floor notifications
When the hardware reduces the power to the minimum possible, the power
floor is notified via an interrupt.

This can happen when user space requests a power limit via powercap RAPL
interface, which forces the system to enter to the lowest power. This
power floor indication can be used as a hint to resort to other methods
of reducing power than via RAPL power limit.

Before power floor status can be read or the firmware can trigger
notifications regarding it, it needs to be configured via a mailbox
command. The actual power floor status is read via bit 39 of MMIO
offset 0x5B18 of the processor thermal PCI device.

To show the current power floor status and get notification
on a sysfs attribute, add 2 new attributes to
/sys/bus/pci/devices/0000\:00\:04.0/power_limits/

power_floor_enable : This attribute is present when power floor
 notifications are supported. This attribute allows to enable/disable
 power floor notifications.

power_floor_status : This attribute is present when power floor
 notifications are supported. When enabled via power_floor_enable, this
 attribute shows the current power floor status.

The power floor implementation provides interfaces which are called
from the sysfs callbacks to enable/disable and read power floor
status. It also provides two additional interfaces to check if the
current processor thermal device interrupt is for power floor status
and to send notifications to user space.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Changelog and documentation changes edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-10-12 21:09:48 +02:00
Srinivas Pandruvada
6ebc25d8b0 thermal: int340x: processor_thermal: Set feature mask before proc_thermal_add
The function proc_thermal_add() adds sysfs entries for power limits.

The feature mask of available features is not present at that time, so
it cannot be used by proc_thermal_add() to selectively create sysfs
attributes.

The feature mask is set by proc_thermal_mmio_add(), so modify the code
to call it before proc_thermal_add() so as to allow the latter to use
the feature mask.

There is no functional impact with this change.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-10-12 21:09:48 +02:00
Srinivas Pandruvada
088f16f352 thermal: int340x: processor_thermal: Common function to clear SOC interrupt
The SOC interrupt status register contains multiple interrupt sources
(workload hint interrupt and power floor interrupt). It is not possible
to clear individual interrupt source with read-modify-write, as it may
clear the new interrupt from the firmware after a read operation. It is
also not possible to set the interrupt status bit to 1 for the other
interrupt source, which is not part of clearing.

Hence, create a common function, to clear all status bits at once.

Call this function after processing all interrupt sources.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-10-12 21:09:48 +02:00
Srinivas Pandruvada
24e4c26202 thermal: int340x: processor_thermal: Move interrupt status MMIO offset to common header
Move define SOC_WT_RES_INT_STATUS_OFFSET to processor_thermal_device.h.

This way it can be reused in other modules.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-10-12 21:09:48 +02:00
Linus Torvalds
9a5a149485 ARM: SoC fixes for 6.6, part 2
AngeloGioacchino Del Regno is stepping in as co-maintainer for the
 MediaTek SoC platform and starts by sending some dts fixes for
 the mt8195 platform that had been pending for a while.
 
 On the ixp4xx platform, Krzysztof Halasa steps down as co-maintainer,
 reflecting that Linus Walleij has been handling this on his own
 for the past few years.
 
 Generic RISC-V kernels are now marked as incompatible with the
 RZ/Five platform that requires custom hacks both for managing
 its DMA bounce buffers and for addressing low virtual memory.
 
 Finally, there is one bugfix for the AMDTEE firmware driver
 to prevent a use-after-free bug.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEiK/NIGsWEZVxh/FrYKtH/8kJUicFAmUn5QgACgkQYKtH/8kJ
 UicWRw/+J+gYuPbjAO5A34KjcvE0/oHoX0CartiJLjGMSboXqjvlJOL2V37q9cTO
 kt/all/wWYnyvr3L09jPKZY8J9stw6wgMpkPZpcAORkF/Vc8KNEvBBVVnTIZSlie
 G6HSNW1S3qMPdt2mxjPWeO7aoKqq/lIuQoJDDAh3XQWYowy7++o6TreLs14UsGfv
 +PRNm5dR+SGe5QC/vIJIn0U7bTD7PRQ7xEdv2LC+ANto+mbtdyVOKh16kcTnzO+2
 NUHmBQvHqGS0Q1uN1hiXQocL9WA7vreVLk7ARbq/SLr1ccOsxJrxKj9LYPhoLq68
 8oJCHR8RBAXxYInhiw2xR62KczTEVickNWlHR7aiWlQ+Bxha/YhpmUAzh/hrlvWg
 edCBUSIxQW1CyLmbMxAqyHQn72F+sMM/LulhmftHuBcbF1YwNseAV67MKjoMSTr0
 rjSiXpzdomCvgZxhJYujHLjugKh6jfLMRwPx+0P6qKebdm/y1a17kGtUf/NQ24bn
 nDAeOAKWRRdEu4CjcoYkzVLgE6MlXUiSbSmpsPpDevge1qbcrfHgIATHech4oyDd
 h2o8xIO37H4QB3s9w18g05OQRToRlBHPMxQhD+vlRy77Zd9BE7wZqKcwR9XjkyyX
 +qPcNHVN0khxf+/NYiIE/Wn5Z57PL2vvgYoSp2L2Wi+UiYEZ0Ek=
 =Ukoh
 -----END PGP SIGNATURE-----

Merge tag 'soc-fixes-6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "AngeloGioacchino Del Regno is stepping in as co-maintainer for the
  MediaTek SoC platform and starts by sending some dts fixes for the
  mt8195 platform that had been pending for a while.

  On the ixp4xx platform, Krzysztof Halasa steps down as co-maintainer,
  reflecting that Linus Walleij has been handling this on his own for
  the past few years.

  Generic RISC-V kernels are now marked as incompatible with the RZ/Five
  platform that requires custom hacks both for managing its DMA bounce
  buffers and for addressing low virtual memory.

 Finally, there is one bugfix for the AMDTEE firmware driver to prevent
 a use-after-free bug"

* tag 'soc-fixes-6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  IXP4xx MAINTAINERS entries
  arm64: dts: mediatek: mt8195: Set DSU PMU status to fail
  arm64: dts: mediatek: fix t-phy unit name
  arm64: dts: mediatek: mt8195-demo: update and reorder reserved memory regions
  arm64: dts: mediatek: mt8195-demo: fix the memory size to 8GB
  MAINTAINERS: Add Angelo as MediaTek SoC co-maintainer
  soc: renesas: Make ARCH_R9A07G043 (riscv version) depend on NONPORTABLE
  tee: amdtee: fix use-after-free vulnerability in amdtee_close_session
2023-10-12 11:52:23 -07:00
Alexandre Ghiti
3fec323339
drivers: perf: Fix panic in riscv SBI mmap support
The following panic can happen when mmap is called before the pmu add
callback which sets the hardware counter index: this happens for example
with the following command `perf record --no-bpf-event -n kill`.

[   99.461486] CPU: 1 PID: 1259 Comm: perf Tainted: G            E      6.6.0-rc4ubuntu-defconfig #2
[   99.461669] Hardware name: riscv-virtio,qemu (DT)
[   99.461748] epc : pmu_sbi_set_scounteren+0x42/0x44
[   99.462337]  ra : smp_call_function_many_cond+0x126/0x5b0
[   99.462369] epc : ffffffff809f9d24 ra : ffffffff800f93e0 sp : ff60000082153aa0
[   99.462407]  gp : ffffffff82395c98 tp : ff6000009a218040 t0 : ff6000009ab3a4f0
[   99.462425]  t1 : 0000000000000004 t2 : 0000000000000100 s0 : ff60000082153ab0
[   99.462459]  s1 : 0000000000000000 a0 : ff60000098869528 a1 : 0000000000000000
[   99.462473]  a2 : 000000000000001f a3 : 0000000000f00000 a4 : fffffffffffffff8
[   99.462488]  a5 : 00000000000000cc a6 : 0000000000000000 a7 : 0000000000735049
[   99.462502]  s2 : 0000000000000001 s3 : ffffffff809f9ce2 s4 : ff60000098869528
[   99.462516]  s5 : 0000000000000002 s6 : 0000000000000004 s7 : 0000000000000001
[   99.462530]  s8 : ff600003fec98bc0 s9 : ffffffff826c5890 s10: ff600003fecfcde0
[   99.462544]  s11: ff600003fec98bc0 t3 : ffffffff819e2558 t4 : ff1c000004623840
[   99.462557]  t5 : 0000000000000901 t6 : ff6000008feeb890
[   99.462570] status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003
[   99.462658] [<ffffffff809f9d24>] pmu_sbi_set_scounteren+0x42/0x44
[   99.462979] Code: 1060 4785 97bb 00d7 8fd9 9073 1067 6422 0141 8082 (9002) 0013
[   99.463335] Kernel BUG [#2]

To circumvent this, try to enable userspace access to the hardware counter
when it is selected in addition to when the event is mapped. And vice-versa
when the event is stopped/unmapped.

Fixes: cc4c07c89a ("drivers: perf: Implement perf event mmap support in the SBI backend")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20231006082010.11963-1-alexghiti@rivosinc.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-10-12 11:46:35 -07:00
Lucy Mielke
ac8b60be07 locking/lockdep: Fix string sizing bug that triggers a format-truncation compiler-warning
On an allyesconfig, with "treat warnings as errors" unset, GCC emits
these warnings:

	kernel/locking/lockdep_proc.c:438:32: Warning: Format specifier '%lld' may
		be truncated when writing 1 to 17 bytes into a region
		of size 15 [-Wformat-truncation=]

	kernel/locking/lockdep_proc.c:438:31: Note: Format directive argument is
		in the range [-9223372036854775, 9223372036854775]

	kernel/locking/lockdep_proc.c:438:9: Note: 'snprintf' has output
		between 5 and 22 bytes into a target of size 15

In seq_time(), the longest s64 is "-9223372036854775808"-ish, which
converted to the fixed-point float format is "-9223372036854775.80": 21 bytes,
plus termination is another byte: 22. Therefore, a larger buffer size
of 22 is needed here - not 15. The code was safe due to the snprintf().

Fix it.

Signed-off-by: Lucy Mielke <lucymielke@icloud.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/ZSfOEHRkZAWaQr3U@fedora.fritz.box
2023-10-12 20:37:59 +02:00
Alexandre Ghiti
a87e7d3e88
riscv: Fix ftrace syscall handling which are now prefixed with __riscv_
ftrace creates entries for each syscall in the tracefs but has failed
since commit 08d0ce30e0 ("riscv: Implement syscall wrappers") which
prefixes all riscv syscalls with __riscv_.

So fix this by implementing arch_syscall_match_sym_name() which allows us
to ignore this prefix.

And also ignore compat syscalls like x86/arm64 by implementing
arch_trace_is_compat_syscall().

Fixes: 08d0ce30e0 ("riscv: Implement syscall wrappers")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Tested-by: Björn Töpel <bjorn@rivosinc.com>
Link: https://lore.kernel.org/r/20231003182407.32198-1-alexghiti@rivosinc.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-10-12 11:35:48 -07:00
Linus Torvalds
9b1ad4ba57 pmdomain:
- imx: scu-pd: Correct the DMA2 channel
 -----BEGIN PGP SIGNATURE-----
 
 iQJLBAABCgA1FiEEugLDXPmKSktSkQsV/iaEJXNYjCkFAmUn+YMXHHVsZi5oYW5z
 c29uQGxpbmFyby5vcmcACgkQ/iaEJXNYjCleKw/+IEWKHZTwRingMZ9MPHFSqPfI
 Nl/Vl1XEO721kFII/RCFqdGzAVcGg4reAEtKN/2vTahmw6b31VtqsdktchZp3ubt
 cf7yZFu5Bk66KmgiBUZD3i8pVxE4+0IOj7AFjfmwRBw913w2Dy6pgJqLEEI/Wx+h
 vvTTd7VTzrmYxmpf94aXVyvYhHNX3VZmMWRKAE8nHI/6JUCxw2GWZhcjR7HcKJLw
 +2WBqEIQO11RXOb9wAaKVfyig+kGzUF2Di/9ye5TbstSFvjD5lixrDV3ipmUjSSb
 WMgNPCsB84X/5/phDr237eGcpJBvHk7AHAax5aSL87cHwe+qlrB6U2v88OKjTSxe
 zOBQ1ubi9ea/KTeuUZ4btwg/7JBJYPehOF9MV6D8q3/jEeu6a9UWsdlRvLqxEzT+
 maSu7x1iDjK6eEo8z5K1BA4IgrEvWUfnDz7ONIrHzh7QD6BrsJGWpexf7YCUxHDf
 mqJRdAElCD6+pARSUjazTkIje0ksFYSj0dklmNgJtTtFHuUs8qrwGXvD1fiRtaXH
 9aSt9akAaSq3mujLPUnzvTGBpS0IREjMFOtQVNeCOqMJ0E+jDQ45+vkEDFjvZAL+
 gt5e2QQ5gq8ZBeG11Wz92F+88VlctfMIjiZw13rA+GPolBTmLbBwcUdTkv0VV/35
 sg9mojnK5AmIIKffPQo=
 =4vKF
 -----END PGP SIGNATURE-----

Merge tag 'pmdomain-v6.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain fix from Ulf Hansson:

 - imx: scu-pd: Correct the DMA2 channel

* tag 'pmdomain-v6.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
  pmdomain: imx: scu-pd: correct DMA2 channel
2023-10-12 11:34:23 -07:00
Rob Herring
a09c3e105a arm64: dts: renesas: Apply overlays to base dtbs
DT overlays in tree need to be applied to a base DTB to validate they
apply, to run schema checks on them, and to catch any errors at compile
time.

Signed-off-by: Rob Herring <robh@kernel.org>
[geert: Add missing base/overlay combinations]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/44e5c1781b012a38d07a8d2fc68b26b33c3558b6.1696945404.git.geert+renesas@glider.be
2023-10-12 20:34:21 +02:00
Jiexun Wang
07a2766575
RISC-V: Fix wrong use of CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK
If configuration options SOFTIRQ_ON_OWN_STACK and PREEMPT_RT
are enabled simultaneously under RISC-V architecture,
it will result in a compilation failure:

arch/riscv/kernel/irq.c:64:6: error: redefinition of 'do_softirq_own_stack'
   64 | void do_softirq_own_stack(void)
      |      ^~~~~~~~~~~~~~~~~~~~
In file included from ./arch/riscv/include/generated/asm/softirq_stack.h:1,
                 from arch/riscv/kernel/irq.c:15:
./include/asm-generic/softirq_stack.h:8:20: note: previous definition of 'do_softirq_own_stack' was here
    8 | static inline void do_softirq_own_stack(void)
      |                    ^~~~~~~~~~~~~~~~~~~~

After changing CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK to CONFIG_SOFTIRQ_ON_OWN_STACK,
compilation can be successful.

Fixes: dd69d07a5a ("riscv: stack: Support HAVE_SOFTIRQ_ON_OWN_STACK")
Reviewed-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Jiexun Wang <wangjiexun@tinylab.org>
Reviewed-by: Samuel Holland <samuel@sholland.org>
Link: https://lore.kernel.org/r/20230913052940.374686-1-wangjiexun@tinylab.org
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-10-12 11:34:16 -07:00
Chen Jiahao
1d6cd2146c
riscv: kdump: fix crashkernel reserving problem on RISC-V
When testing on risc-v QEMU environment with "crashkernel="
parameter enabled, a problem occurred with the following
message:

[    0.000000] crashkernel low memory reserved: 0xf8000000 - 0x100000000 (128 MB)
[    0.000000] crashkernel reserved: 0x0000000177e00000 - 0x0000000277e00000 (4096 MB)
[    0.000000] ------------[ cut here ]------------
[    0.000000] WARNING: CPU: 0 PID: 0 at kernel/resource.c:779 __insert_resource+0x8e/0xd0
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 6.6.0-rc2-next-20230920 #1
[    0.000000] Hardware name: riscv-virtio,qemu (DT)
[    0.000000] epc : __insert_resource+0x8e/0xd0
[    0.000000]  ra : insert_resource+0x28/0x4e
[    0.000000] epc : ffffffff80017344 ra : ffffffff8001742e sp : ffffffff81203db0
[    0.000000]  gp : ffffffff812ece98 tp : ffffffff8120dac0 t0 : ff600001f7ff2b00
[    0.000000]  t1 : 0000000000000000 t2 : 3428203030303030 s0 : ffffffff81203dc0
[    0.000000]  s1 : ffffffff81211e18 a0 : ffffffff81211e18 a1 : ffffffff81289380
[    0.000000]  a2 : 0000000277dfffff a3 : 0000000177e00000 a4 : 0000000177e00000
[    0.000000]  a5 : ffffffff81289380 a6 : 0000000277dfffff a7 : 0000000000000078
[    0.000000]  s2 : ffffffff81289380 s3 : ffffffff80a0bac8 s4 : ff600001f7ff2880
[    0.000000]  s5 : 0000000000000280 s6 : 8000000a00006800 s7 : 000000000000007f
[    0.000000]  s8 : 0000000080017038 s9 : 0000000080038ea0 s10: 0000000000000000
[    0.000000]  s11: 0000000000000000 t3 : ffffffff80a0bc00 t4 : ffffffff80a0bc00
[    0.000000]  t5 : ffffffff80a0bbd0 t6 : ffffffff80a0bc00
[    0.000000] status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000003
[    0.000000] [<ffffffff80017344>] __insert_resource+0x8e/0xd0
[    0.000000] ---[ end trace 0000000000000000 ]---
[    0.000000] Failed to add a Crash kernel resource at 177e00000

The crashkernel memory has been allocated successfully, whereas
it failed to insert into iomem_resource. This is due to the
unique reserving logic in risc-v arch specific code, i.e.
crashk_res/crashk_low_res will be added into iomem_resource
later in init_resources(), which is not aligned with current
unified reserving logic in reserve_crashkernel_{generic,low}()
and therefore leads to the failure of crashkernel reservation.

Removing the arch specific code within #ifdef CONFIG_KEXEC_CORE
in init_resources() to fix above problem.

Fixes: 31549153088e ("riscv: kdump: use generic interface to simplify crashkernel reservation")
Signed-off-by: Chen Jiahao <chenjiahao16@huawei.com>
Link: https://lore.kernel.org/r/20230925024333.730964-1-chenjiahao16@huawei.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-10-12 11:34:09 -07:00