Commit graph

1,188,286 commits

Author SHA1 Message Date
Neil Armstrong
8b034e6771 drm/msm/dsi: add support for DSI-PHY on SM8550
SM8550 use a 4nm DSI PHYs, which share register definitions
with 7nm DSI PHYs. Rather than duplicating the driver, handle
4nm variant inside the common 5+7nm driver.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/517515/
Link: https://lore.kernel.org/r/20230103-topic-sm8550-upstream-mdss-dsi-v3-6-660c3bcb127f@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2023-01-22 22:42:57 +02:00
Neil Armstrong
93f0ca6fd6 dt-bindings: display/msm: document the SM8550 DSI PHY
Document the SM8550 DSI PHY which is very close from the 7nm
and 5nm DSI PHYs found in earlier platforms.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/517509/
Link: https://lore.kernel.org/r/20230103-topic-sm8550-upstream-mdss-dsi-v3-1-660c3bcb127f@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2023-01-22 22:42:57 +02:00
Adam Skladowski
f47ec1bcb9 dt-bindings: msm: dsi-phy-28nm: Document fam-b compatible
Document omitted 28nm compatible which will be used on MSM8976 SoC.

Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/516427/
Link: https://lore.kernel.org/r/20221231170532.77000-1-a39.skl@gmail.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2023-01-22 22:42:57 +02:00
Dmitry Baryshkov
c332881cb6 drm/msm/dsi: add support for DSI 2.6.0
Add support for DSI 2.6.0 (block used on sm8450).

Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/514237/
Link: https://lore.kernel.org/r/20221207012231.112059-8-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2023-01-22 22:42:57 +02:00
Dmitry Baryshkov
2f9ae4e395 drm/msm/dsi: add support for DSI-PHY on SM8350 and SM8450
SM8350 and SM8450 use 5nm DSI PHYs, which share register definitions
with 7nm DSI PHYs. Rather than duplicating the driver, handle 5nm
variants inside the common 5+7nm driver.

Co-developed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/514230/
Link: https://lore.kernel.org/r/20221207012231.112059-7-dmitry.baryshkov@linaro.org
[DB: changed compatibles per Krzysztof's request]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
2023-01-22 22:42:46 +02:00
Linus Torvalds
2475bf0250 - Make sure the scheduler doesn't use stale frequency scaling values when latter
get disabled due to a value error
 
 - Fix a NULL pointer access on UP configs
 
 - Use the proper locking when updating CPU capacity
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmPNKRsACgkQEsHwGGHe
 VUr8NA/9GTqGUpOq0iRQkEOE1oAdT4ZxJ9dQpaWjwWSNv40HT7XJBzjtvzAyiOBF
 LTUVClBct5i1/j0tVcNq1zXEj3im2e24Ki6A1TWukejgGAMT/7siSkuChEDAMg2M
 b79nKCMpuIZMzkJND3qTkW/aMPpAyU82G8BeLCjw7vgPBsbVkjgbxGFKYdHgpLZa
 kdX/GhOufu40jcGeUxA4zWTpXfuXT3OG7JYLrlHeJ/HEdzy9kLCkWH4jHHllzPQw
 c4JwG7UnNkDKD6zkG0Guzi1zQy39egh/kaj7FQmVap9sneq+x69T4ta0BfXdBXnQ
 Vsqc/nnOybUzr9Gjg5W6KRZWk0k6hK9n3+cye88BfRvzMY0KAgxeCiZEn7cuKqZp
 15Agzz77vcwt32QsxjSp+hKQxJtePcBCurDhkfuAZyPELNIBeCW6inrXArprfTIg
 IfEF068GKsvDGu3I/z49VXFZ9YBoerQREHbN/xL1VNeB8VoAxAE227OMUvhMcIu1
 jxVvkESwc9BIybTcJbUjgg2i9t+Fv3gtZBQ6GFfDboHneia4U5a9aTyN6QGjX+5P
 SIXPhePbFCNrhW7JbSGqKBd96MczbFNQinRhgX1lBU0241cAnchY4nH9fUvv7Zrt
 b/QDg58tb2bJkm1Z08L256ZETELOU9nLJVxUbtBNSSO9dfkvoBs=
 =aNSK
 -----END PGP SIGNATURE-----

Merge tag 'sched_urgent_for_v6.2_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Borislav Petkov:

 - Make sure the scheduler doesn't use stale frequency scaling values
   when latter get disabled due to a value error

 - Fix a NULL pointer access on UP configs

 - Use the proper locking when updating CPU capacity

* tag 'sched_urgent_for_v6.2_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/aperfmperf: Erase stale arch_freq_scale values when disabling frequency invariance readings
  sched/core: Fix NULL pointer access fault in sched_setaffinity() with non-SMP configs
  sched/fair: Fixes for capacity inversion detection
  sched/uclamp: Fix a uninitialized variable warnings
2023-01-22 12:14:58 -08:00
Linus Torvalds
ab2f408731 - Respect user-supplied polling value in the EDAC device code
- Fix a use-after-free issue in qcom_edac
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmPNJhsACgkQEsHwGGHe
 VUp5Rg//SAJS9LKvjRYKqA3ruJoSqdyb9wdp4EwvZNM9aScF5hbxcng3QT4KQbzX
 EQgn9FvSa3YurAEMj7q8I4B0qby+xuR2lcbWSwg2jkXgu6cPviJOw4o3lqaSJqxS
 yjfuaPpOCChmgOSfl9Yuk6Nj+mSD0nYZtK0i2qf03MGNXDWfNGokHQ1OCdrVONm7
 ySBIPD2zamso8YYLcr/PjGEECw9DfNl6CwB97RfogUXfotCp0zNekCWTZNaIp/js
 rETcf5FDjKsCHrL4y9fy8CJ7Bb3BGcMA7p/Vtj62CT2rhBXLKKAKU/JFnQLUBFN1
 vzdhC5P46BR+e+Iy90aUYuOFvuwyIjF/wySD/DcGcXZMbeeEKvRJMECWGzZ8otQm
 qyFgRoWAoIDXqxfUSS8XYAFoLoXq2KPdav2I4qt7ApW+6yovFiBRnNsbrI9fvjSo
 DH2mcgmjkSY3frbxhcI6XeS+oLXDiRKwlHOFV/8GWmrbm7TKXqOgXNLLUdaqFkAH
 vBTkMvxfHh4SMd6O/8KiH9dvhXgGWvJoapZpFQkVa3/c+5l0Sb1mi3YmXdaTDvtK
 s7PKsUpFwDGD+98+II4pRupHkCnXMcvQVlnn/lADiX8LD9N8VudFWEhX9Bou7/gV
 yVYm1sIp1t6cdKzznuaQh8rUNtwCbXOwePPua31A6V1OeieNvE4=
 =P94r
 -----END PGP SIGNATURE-----

Merge tag 'edac_urgent_for_v6.2_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC fixes from Borislav Petkov:

 - Respect user-supplied polling value in the EDAC device code

 - Fix a use-after-free issue in qcom_edac

* tag 'edac_urgent_for_v6.2_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/qcom: Do not pass llcc_driv_data as edac_device_ctl_info's pvt_info
  EDAC/device: Respect any driver-supplied workqueue polling value
2023-01-22 12:10:47 -08:00
Linus Torvalds
2b299a1cd4 - Add Emerald Rapids model support to more perf machinery
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmPNJQMACgkQEsHwGGHe
 VUpplw//XSPjrP7Ikajhwv6qQVX0ZEfSnte5qA5B+t5qu59T1DQGhBllkV7pay+V
 PuEESYkOt/MfZ6lCyoG75w80dBMlVIGi3b0HsZ9bw0ejIxm33DMM/E1ZPsKBh8i5
 H/9u26Yo77LE2HMr8Nf8HyOlLrdvBqgQBV3VHgk/eLFZnJR3Yk/T1+8ZZzLpx+TA
 5BfKvXFHWqkpe8KF20A6OxC2FQfLx5hCiY0ozOk0ZHIKzTy9g+BVaDw3XV049nj/
 BttTvhV9bdimCxVgBWxUBt5n7QoR7zE5vfief4o9UkNHeut0LmjnwcfymFwL0j21
 8yVo+layNzhTYX/7wXQchz3LV+8ZvFvVZ1Iw3hhP0yQknbDBLtDHGLTy+p9t2cgS
 1nuMNX1bZHDAQ4vV3ehYqC+MmGIh55dTRDggLvxMOzOv+v1vXMR+mlVELL+Q8KJy
 7ynNfnP88EjCQfBpxe33D8VMFJ7LqsWAIjYu2upXrlVVR8mKbp2FnSjn9cK+Np75
 Y4132ESWSvn7mHSmmcRHOjdSUxmi1UgBsL689hF9Zkx8zpHJSLhUWwW4xKKwE/dd
 /jvwZ50KzjuJYWrn/ueJpubgyeoMSZY6Y+iaCl4aYZna0X7h+PF7qY4A8pB6YXpH
 A0uVCAlNL+lkGFKAq+TkOx1lCw/eR+zg2s2ClVUdB6e8qsYYX2o=
 =9JcB
 -----END PGP SIGNATURE-----

Merge tag 'perf_urgent_for_v6.2_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fix from Borislav Petkov:

 - Add Emerald Rapids model support to more perf machinery

* tag 'perf_urgent_for_v6.2_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/cstate: Add Emerald Rapids
  perf/x86/intel: Add Emerald Rapids
2023-01-22 12:06:18 -08:00
Linus Torvalds
3c006ad74d gfs2 writepage fix
- Fix a regression introduced by commit "gfs2: stop using
   generic_writepages in gfs2_ail1_start_one".
 -----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCAAyFiEEJZs3krPW0xkhLMTc1b+f6wMTZToFAmPM+scUHGFncnVlbmJh
 QHJlZGhhdC5jb20ACgkQ1b+f6wMTZTqykQ/7Buqe5XNLRsEqzNSqTVApoKX+Udqw
 mmClewhUybP1mHf2A8264H4IdV0iPKOGBL/KXnEf77pDwwy2a20moWMWva7l0f9R
 5K6Z2kAJxgvsYcnH81Wk2xnRfZi8qiEpfc5INc8XiU9pxxP/+yfEWrUaU94JOEpH
 gKYrUgPZV2c0kD7BiKDQrMbuya2vo+TooQ7BzHs3Qm8zCf/E9t9NF2WmDIRKIjuY
 qDfmIO31FXcnYwrLkT5EHiuHpC47R2Y+8+B5tPvV8UTkllZQ4jWqxeBCO6wpa5Vd
 kJqJkT620hDJltpCIBMlJL+MiHhclVvcUXZJiBC0k6gl3eJUFkSPU79NGEO7CO4L
 DB4VeeYX9SghWZp7DEyqCZx9dev4WizwM5lM5kON72nqcUQeM9hW+ejvIgaP9/4u
 1TTyJiZ7a3zBCcSOXNeiEIWDtNYUVnWpi89kAZ0SwljvbL2/neR6gWEfKj3X4CmI
 V7+IycIH6qUUusLm+wopQecYvOjXZbXkBWgA+r2AIzBfj+2Yh6Ro5eFPPI58hJ1P
 HKhtLvwpietjZKwYJqAJzlpKryISY6v0S3pAJGjVlEkFl8bRa+N/X1UeHQUL2ozw
 EbQrjHX8xydyTY8/B9ntuCSl52USsGd153i3vhrUfYMtHaK57dCL3kRk4bvpEXVA
 GDXEmbaW/fGE36A=
 =xJNx
 -----END PGP SIGNATURE-----

Merge tag 'gfs2-v6.2-rc4-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 writepage fix from Andreas Gruenbacher:

 - Fix a regression introduced by commit "gfs2: stop using
   generic_writepages in gfs2_ail1_start_one".

* tag 'gfs2-v6.2-rc4-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  Revert "gfs2: stop using generic_writepages in gfs2_ail1_start_one"
2023-01-22 11:56:33 -08:00
Tony Krowiak
7cb7636a1a s390/vfio_ap: increase max wait time for reset verification
Increase the maximum time to wait for verification of a queue reset
operation to 200ms.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20230118203111.529766-7-akrowiak@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:36 +01:00
Tony Krowiak
51d4d98770 s390/vfio_ap: fix handling of error response codes
Some response codes returned from the queue reset function are not being
handled correctly; this patch fixes them:

1. Response code 3, AP queue deconfigured: Deconfiguring an AP adapter
   resets all of its queues, so this is handled by indicating the reset
   verification completed successfully.

2. For all response codes other than 0 (normal reset completion), 2
   (queue reset in progress) and 3 (AP deconfigured), the -EIO error will
   be returned from the vfio_ap_mdev_reset_queue() function. In all cases,
   all fields of the status word other than the response code will be
   set to zero, so it makes no sense to check status bits.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20230118203111.529766-6-akrowiak@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:36 +01:00
Tony Krowiak
5a42b348ad s390/vfio_ap: verify ZAPQ completion after return of response code zero
Verification that the asynchronous ZAPQ function has completed only needs
to be done when the response code indicates the function was successfully
initiated; so, let's call the apq_reset_check function immediately after
the response code zero is returned from the ZAPQ.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20230118203111.529766-5-akrowiak@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:36 +01:00
Tony Krowiak
3ba4176810 s390/vfio_ap: use TAPQ to verify reset in progress completes
To eliminate the repeated calls to the PQAP(ZAPQ) function to verify that
a reset in progress completed successfully and ensure that error response
codes get appropriately logged, let's call the apq_reset_check() function
when the ZAPQ response code indicates that a reset that is already in
progress.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20230118203111.529766-4-akrowiak@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:36 +01:00
Tony Krowiak
0daf9878a7 s390/vfio_ap: check TAPQ response code when waiting for queue reset
The vfio_ap_mdev_reset_queue() function does not check the status
response code returned form the PQAP(TAPQ) function when verifying the
queue's status; consequently, there is no way of knowing whether
verification failed because the wait time was exceeded, or because the
PQAP(TAPQ) failed.

This patch adds a function to check the status response code from the
PQAP(TAPQ) instruction and logs an appropriate message if it fails.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20230118203111.529766-3-akrowiak@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:36 +01:00
Tony Krowiak
62414d901c s390/vfio-ap: verify reset complete in separate function
The vfio_ap_mdev_reset_queue() function contains a loop to verify that the
reset successfully completes within 40ms. This patch moves that loop into
a separate function.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20230118203111.529766-2-akrowiak@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:35 +01:00
Vasily Gorbik
1a280f48c0 s390/kprobes: replace kretprobe with rethook
That's an adaptation of commit f3a112c0c4 ("x86,rethook,kprobes:
Replace kretprobe with rethook on x86") to s390.

Replaces the kretprobe code with rethook on s390. With this patch,
kretprobe on s390 uses the rethook instead of kretprobe specific
trampoline code.

Tested-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:35 +01:00
Thomas Richter
d924ecdb70 s390/cpum_sf: diagnostic sampling buffer setup to handle virtual addresses
The CPU Measurement Sampling Facility (CPUM_SF) installs large buffers
to save samples collected by hardware. These buffers are organized
as Sample Data Buffer Tables (SDBT) and Sample Data Buffers (SDB).
SDBs contain the samples which are extracted and saved in the perf
ring buffer.
The SDBTs are chained using real addresses and refer to SDBs using
real addresses.

The diagnostic sampling setup uses buffers provided by the process
which invokes perf_event_open system call. The buffers are memory
mapped. The buffers have been allocated by the kernel event
subsystem.

Add proper virtual to phyiscal address translation to the buffer
chaining. The current constraint which requires virtual equals
real address layout is removed.

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:35 +01:00
Thomas Richter
78157b4791 s390/cpum_sf: rework macro AUX_SDB_NUM_xxx
Macro AUX_SDB_NUM() has three parameters. The first one is not used.
Remove the first parameter. Also convert the macros to inline functions.
No functional change.

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:35 +01:00
Thomas Richter
1f8e50722f s390/cpum_sf: sampling buffer setup to handle virtual addresses
The CPU Measurement Sampling Facility (CPUM_SF) installs large buffers
to save samples collected by hardware. These buffers are organized
as Sample Data Buffer Tables (SDBT) and Sample Data Buffers (SDB).
SDBs contain the samples which are extracted and saved in the perf
ring buffer.
The SDBTs are chained using real addresses and refer to SDBs using
real addresses.

Adds proper virtual to phyiscal address translation to the buffer
chaining. The current constraint which requires virtual equals real
address layout is removed.

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:35 +01:00
Thomas Richter
4012fc20e2 s390/cpum_sf: remove debug statements from function setup_pmc_cpu
Remove debug statements from function setup_pmc_cpu().
The debug statement displays a pointer value to a per cpu variable.
This pointer value is printed nowhere else, so it has no use for
cross reference.
No functional change.

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:34 +01:00
Thomas Richter
a64e45c2ea s390/cpum_sf: move functions from header file to source file
Some inline helper functions are defined in a header file but used
in only one source file. Move these functions to the source file.
No functional change.

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:34 +01:00
Jiapeng Chong
b4af09140a s390/vmem: use swap() instead of open coding it
Swap is a function interface that provides exchange function. To avoid
code duplication, we can use swap function.

./arch/s390/mm/vmem.c:680:10-11: WARNING opportunity for swap().

[hca@linux.ibm.com: get rid of all temp variables]
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3786
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230117060223.58583-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:34 +01:00
Vineeth Vijayan
ca34cda73f s390/cio: evaluate devices with non-operational paths
css_schedule_reprobe() function calls the evaluation for CSS_EVAL_UNREG
which is specific to the idset of unregistered subchannels. This
evaluation was introduced because, previously, if the underlying device
become not-accessible, the subchannel was unregistered. But, in the recent
changes in cio,with the commit '2297791c92 s390/cio: dont unregister
subchannel from child-drivers', we no  longer unregister the subchannels
just because of a non-operational device. This allows to have subchannels
without any operational device connected on it. So, a css_schedule_reprobe
function on unregistered subchannel does not have any effect.

Change this functionality to evaluate the subchannels which does not
have a working path to the device. This could be due the erroneous
device or due to the erraneous path. Evaluate based on the values of OPM
and PAM&POM.
Here we introduced a new idset function,to keep I/O subchannels in the
idset when the last seen status indicates that the device has no working
path. A device has no working path if all available paths have been tried
without success.A failed I/O attempt on a path is indicated as a 0 bit
value in the POM mask. By looking at the POM mask bit values of available
paths (1 in PAM) that Linux is supposed to use (1 in vary mask OPM), we
can identify a non-working device as a device where the bit-wise and of
the PAM, POM and OPM mask return 0.

css_schedule_reprobe() is being used by dasd-driver and chsc-cio
component. dasd driver, when it detects a change in the pathgroup, invokes
the re-evaluation of the subchannel. And chsc-cio component upon a CRW
event, (resource accessibility event). In both the cases, it makes much
better sense to re-evalute the subchannel with no-valid path.

Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Reported-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Tested-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:34 +01:00
Christophe JAILLET
c313094491 s390/ipl: use kstrtobool() instead of strtobool()
strtobool() is the same as kstrtobool().
However, the latter is more used within the kernel.

In order to remove strtobool() and slightly simplify kstrtox.h, switch to
the other function name.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/58a3ed2e21903a93dfd742943b1e6936863ca037.1673708887.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-01-22 18:42:34 +01:00
Haibo Chen
354f23ac2c dt-bindings: iio: adc: Add NXP IMX93 ADC
The IMX93 SoC has a new ADC IP, so add binding documentation
for NXP IMX93 ADC.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://lore.kernel.org/r/20230117135137.1735536-3-haibo.chen@nxp.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-01-22 17:17:39 +00:00
Haibo Chen
7d02296ac8 iio: adc: add imx93 adc support
The ADC in i.mx93 is a total new ADC IP, add a driver to support
this ADC.

Currently, only support one shot normal conversion triggered by
software. For other mode, will add in future.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://lore.kernel.org/r/20230117135137.1735536-2-haibo.chen@nxp.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-01-22 17:16:57 +00:00
Thomas Weißschuh
837962ca23 kheaders: use standard naming for the temporary directory
If the kheaders archive generation is interrupted then this directory
may be left on disk and not ignored by git.
By using the standard naming schema for temporary files and directories
the default .gitignore and "make clean" rules will apply.

Suggested-by: Nicolas Schier <nicolas@fjasle.eu>
Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Tested-by: Nicolas Schier <nicolas@fjasle.eu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-01-22 23:43:34 +09:00
Thomas Weißschuh
9c73bcfaa4 kbuild: also delete temporary directories
Reuse the standard naming schema for temporary files also for temporary
directories.

Such a directory will be used by the kheaders generation.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Tested-by: Nicolas Schier <nicolas@fjasle.eu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-01-22 23:43:34 +09:00
Jani Nikula
2f0e2a39bb docs/kbuild/makefiles: unify quoting
Adding any rst quoting seems to be controversial, but at least try to
unify the existing quoting a bit, without adding new ones.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-01-22 23:43:34 +09:00
Jani Nikula
9f1fe2bba3 docs/kbuild/makefiles: clean up indentation and whitespace
Remove the leading whitespaces, and clean up indentation and whitespace
in general.

Although the diff looks massive, it's trivial with 'diff -w' or 'git
show -w'.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-01-22 23:43:34 +09:00
Jani Nikula
1a4c1c9df7 docs/kbuild/makefiles: drop section numbering, use references
Drop the manually updated section numbering. It's hard to maintain, and
indeed hasn't been updated when sections 3.4 and 7.8 were dropped.

Update all the section references to rst references.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-01-22 23:43:34 +09:00
Jani Nikula
5e8f0ba38a docs/kbuild/makefiles: throw out the local table of contents
This is not something that should be manually updated.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-01-22 23:43:34 +09:00
Jani Nikula
cec450256f docs/kbuild/makefiles: fix header underline
The "Kbuild syntax for exported headers" section should not be under
"Architecture Makefiles" in hierarchy. Bump the header underline from
"-" to "=".

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-01-22 23:43:33 +09:00
Jani Nikula
a82dde4a35 MAINTAINERS: fix kbuild repo branch
The MAINTAINERS repository entry specifies "kconfig" as the branch, but
the repository itself has "kbuild".

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
12fec3d601 kbuild: replace $(dot-target).tmp in filechk with $(tmp-target)
$(tmp-target) is a better fit for local use like this.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
c83b16cefd kbuild: rust: move rust/target.json to scripts/
scripts/ is a better place to generate files used treewide.

With target.json moved to scripts/, you do not need to add target.json
to no-clean-files or MRPROPER_FILES.

'make clean' does not visit scripts/, but 'make mrproper' does.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
93c656de8d fixdep: do not parse *.rlib, *.rmeta, *.so
fixdep is designed only for parsing text files. read_file() appends
a terminating null byte ('\0') and parse_config_file() calls strstr()
to search for CONFIG options.

rustc outputs *.rlib, *.rmeta, *.so to dep-info. fixdep needs them in
the dependency, but there is no point in parsing such binary files.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
faa91c472b fixdep: avoid parsing the same file over again
The dep files (*.d files) emitted by C compilers usually contain the
deduplicated list of included files.

One exceptional case is when a header is included by the -include
command line option, and also by #include directive.

For example, the top Makefile adds the command line option,
"-include $(srctree)/include/linux/kconfig.h". You do not need to
include <linux/kconfig.h> in every source file.

In fact, include/linux/kconfig.h is listed twice in many .*.cmd files
due to include/linux/xarray.h having "#include <linux/kconfig.h>".
I did not fix that since it is a small redundancy.

However, this is more annoying for rustc. rustc emits the dependency
for each emission type.

For example, cmd_rustc_library emits dep-info, obj, and metadata.
So, the emitted *.d file contains the dependency for those 3 targets,
which makes fixdep parse the same file 3 times.

  $ grep rust/alloc/raw_vec.rs rust/.alloc.o.cmd
    rust/alloc/raw_vec.rs \
    rust/alloc/raw_vec.rs \
    rust/alloc/raw_vec.rs \

To skip the second parsing, this commit adds a hash table for parsed
files, just like we did for CONFIG options.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
871d657385 fixdep: refactor hash table lookup
Change the hash table code so it will be easier to add the second table.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
2185242fad kbuild: remove sed commands after rustc rules
rustc may put comments in dep-info, so sed is used to drop them before
passing it to fixdep.

Now that fixdep can remove comments, Makefiles do not need to run sed.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
bc6df812a1 fixdep: parse Makefile more correctly to handle comments etc.
fixdep parses dependency files (*.d) emitted by the compiler.

*.d files are Makefiles describing the dependencies of the main source
file.

fixdep understands minimal Makefile syntax. It works well enough for
GCC and Clang, but not for rustc.

This commit improves the parser a little more for better processing
comments, escape sequences, etc.

My main motivation is to drop comments. rustc may output comments
(e.g. env-dep). Currentyly, rustc build rules invoke sed to remove
comments, but it is more efficient to do it in fixdep.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
295d8398c6 kbuild: specify output names separately for each emission type from rustc
In Kbuild, two different rules must not write to the same file, but
it happens when compiling rust source files.

For example, set CONFIG_SAMPLE_RUST_MINIMAL=m and run the following:

  $ make -j$(nproc) samples/rust/rust_minimal.o samples/rust/rust_minimal.rsi \
                    samples/rust/rust_minimal.s samples/rust/rust_minimal.ll
    [snip]
    RUSTC [M] samples/rust/rust_minimal.o
    RUSTC [M] samples/rust/rust_minimal.rsi
    RUSTC [M] samples/rust/rust_minimal.s
    RUSTC [M] samples/rust/rust_minimal.ll
  mv: cannot stat 'samples/rust/rust_minimal.d': No such file or directory
  make[3]: *** [scripts/Makefile.build:334: samples/rust/rust_minimal.ll] Error 1
  make[3]: *** Waiting for unfinished jobs....
  mv: cannot stat 'samples/rust/rust_minimal.d': No such file or directory
  make[3]: *** [scripts/Makefile.build:309: samples/rust/rust_minimal.o] Error 1
  mv: cannot stat 'samples/rust/rust_minimal.d': No such file or directory
  make[3]: *** [scripts/Makefile.build:326: samples/rust/rust_minimal.s] Error 1
  make[2]: *** [scripts/Makefile.build:504: samples/rust] Error 2
  make[1]: *** [scripts/Makefile.build:504: samples] Error 2
  make: *** [Makefile:2008: .] Error 2

The reason for the error is that 4 threads running in parallel renames
the same file, samples/rust/rust_minimal.d.

This does not happen when compiling C or assembly files because
-Wp,-MMD,$(depfile) explicitly specifies the dependency filepath.
$(depfile) is a unique path for each target.

Currently, rustc is only given --out-dir and --emit=<list-of-types>
So, all the rust build rules output the dep-info into the default
<CRATE_NAME>.d, which causes the path conflict.

Fortunately, the --emit option is able to specify the output path
individually, with the form --emit=<type>=<path>.

Add --emit=dep-info=$(depfile) to the common part. Also, remove the
redundant --out-dir because the output path is specified for each type.

The code gets much cleaner because we do not need to rename *.d files.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
16169a47d5 kbuild: refactor host*_flags
Remove _host*_flags. No functional change is intended.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
ecd42fba57 kbuild: unify cmd_dt_S_dtb and cmd_dt_S_dtbo
cmd_dt_S_dtb and cmd_dt_S_dtbo are almost the same; the only difference
is the prefix of the begin/end symbols. (__dtb vs __dtbo)

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
ee2162bd4f kbuild: add more comments for KBUILD_NOCMDDEP=1
The cmd-check for KBUILD_NOCMDDEP=1 may not be clear until you see
commit c4d5ee1398 ("kbuild: make KBUILD_NOCMDDEP=1 handle empty
built-in.o").

When a phony target (i.e. FORCE) is the only prerequisite, Kbuild
uses a tricky way to detect that the target does not exist.

Add more comments.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
92215e7a80 kbuild: rename cmd_$@ to savedcmd_$@ in *.cmd files
The cmd-check macro compares $(cmd_$@) and $(cmd_$1), but a pitfall is
that you cannot use cmd_<target> as the variable name for the command.

For example, the following code will not work in the top Makefile
or ./Kbuild.

    quiet_cmd_foo = GEN     $@
          cmd_foo = touch $@

    targets += foo
    foo: FORCE
            $(call if_changed,foo)

In this case, both $@ and $1 are expanded to 'foo', so $(cmd_check)
is always empty.

We do not need to use the same prefix for cmd_$@ and cmd_$1.
Rename the former to savedcmd_$@.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
91ecf7ff1b kbuild: make W=1 warn files that are tracked but ignored by git
The top .gitignore comments about how to detect files breaking
.gitignore rules, but people rarely care about it.

Add a new W=1 warning to detect files that are tracked but ignored by
git. If git is not installed or the source tree is not tracked by git
at all, this script does not print anything.

Running it on v6.2-rc1 detected the following:

  $ make W=1 misc-check
  Documentation/devicetree/bindings/.yamllint: warning: ignored by one of the .gitignore files
  drivers/clk/.kunitconfig: warning: ignored by one of the .gitignore files
  drivers/gpu/drm/tests/.kunitconfig: warning: ignored by one of the .gitignore files
  drivers/hid/.kunitconfig: warning: ignored by one of the .gitignore files
  fs/ext4/.kunitconfig: warning: ignored by one of the .gitignore files
  fs/fat/.kunitconfig: warning: ignored by one of the .gitignore files
  kernel/kcsan/.kunitconfig: warning: ignored by one of the .gitignore files
  lib/kunit/.kunitconfig: warning: ignored by one of the .gitignore files
  mm/kfence/.kunitconfig: warning: ignored by one of the .gitignore files
  tools/testing/selftests/arm64/tags/.gitignore: warning: ignored by one of the .gitignore files
  tools/testing/selftests/arm64/tags/Makefile: warning: ignored by one of the .gitignore files
  tools/testing/selftests/arm64/tags/run_tags_test.sh: warning: ignored by one of the .gitignore files
  tools/testing/selftests/arm64/tags/tags_test.c: warning: ignored by one of the .gitignore files

These are ignored by the '.*' or 'tags' in the top .gitignore, but
there is no rule to negate it.

You might be tempted to do 'git add -f' but I want to have the real
issue fixed (by fixing a .gitignore, or by renaming files, etc.).

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-01-22 23:43:33 +09:00
Masahiro Yamada
b8a9ddcafc .gitignore: update the command to check tracked files being ignored
Recent git versions do not accept the noted command.

  $ git ls-files -i --exclude-standard
  fatal: ls-files -i must be used with either -o or -c

The -c was implied before, but we need to make it explicit since
git commit b338e9f66873 ("ls-files: error out on -i unless -o or -c
are specified").

Also, replace --exclude-standard with --exclude-per-directory=.gitignore
so that everyone will get consistent results.

git-ls-files(1) says:

  --exclude-standard
      Add the standard Git exclusions: .git/info/exclude, .gitignore in
      each directory, and the user's global exclusion file.

We cannot predict what is locally added to .git/info/exclude or the
user's global exclusion file.

We can only manage .gitignore files committed to the repository.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
2023-01-22 23:43:32 +09:00
Masahiro Yamada
8f99eb857a kbuild: clean up stale file removal
More than one year has passed since the copied *.[cS] files were
removed from arch/*/boot/compressed/.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-01-22 23:43:32 +09:00
Masahiro Yamada
83d98d73b4 kbuild: drop V=0 support
The top Makefile sets KBUILD_VERBOSE to 0 by default, it looks weird
now because V=1 and V=2 can be OR'ed as V=12. The default should be
empty.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2023-01-22 23:43:32 +09:00