linux.git/arch/parisc/kernel, branch v6.5 Linux kernel source tree parisc: Fix CONFIG_TLB_PTLOCK to work with lightweight spinlock checks 2023-08-14T07:54:49+00:00 Helge Deller deller@gmx.de 2023-08-13T20:11:19+00:00 7a894c87374771f3cfb1b8e5453fbe03f1fb8135 For the TLB_PTLOCK checks we used an optimization to store the spc register into the spinlock to unlock it. This optimization works as long as the lightweight spinlock checks (CONFIG_LIGHTWEIGHT_SPINLOCK_CHECK) aren't enabled, because they really check if the lock word is zero or __ARCH_SPIN_LOCK_UNLOCKED_VAL and abort with a kernel crash ("Spinlock was trashed") otherwise. Drop that optimization to make it possible to activate both checks at the same time. Noticed-by: Sam James <sam@gentoo.org> Signed-off-by: Helge Deller <deller@gmx.de> Tested-by: Sam James <sam@gentoo.org> Cc: stable@vger.kernel.org # v6.4+ Fixes: 15e64ef6520e ("parisc: Add lightweight spinlock checks") 
For the TLB_PTLOCK checks we used an optimization to store the spc
register into the spinlock to unlock it. This optimization works as
long as the lightweight spinlock checks (CONFIG_LIGHTWEIGHT_SPINLOCK_CHECK)
aren't enabled, because they really check if the lock word is zero or
__ARCH_SPIN_LOCK_UNLOCKED_VAL and abort with a kernel crash
("Spinlock was trashed") otherwise.

Drop that optimization to make it possible to activate both checks
at the same time.

Noticed-by: Sam James <sam@gentoo.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Tested-by: Sam James <sam@gentoo.org>
Cc: stable@vger.kernel.org # v6.4+
Fixes: 15e64ef6520e ("parisc: Add lightweight spinlock checks")
Merge tag 'io_uring-6.5-2023-08-11' of git://git.kernel.dk/linux 2023-08-11T19:06:51+00:00 Linus Torvalds torvalds@linux-foundation.org 2023-08-11T19:06:51+00:00 2e40ed24e1696e47e94e804d09ef88ecb6617201 Pull io_uring fixes from Jens Axboe: "A followup fix for the parisc/SHM_COLOUR fix, also from Helge, which is heading to stable. And then just the io_uring equivalent of the RESOLVE_CACHED fix in commit a0fc452a5d7f from last week for build_open_flags()" * tag 'io_uring-6.5-2023-08-11' of git://git.kernel.dk/linux: io_uring/parisc: Adjust pgoff in io_uring mmap() for parisc io_uring: correct check for O_TMPFILE 
Pull io_uring fixes from Jens Axboe:
 "A followup fix for the parisc/SHM_COLOUR fix, also from Helge, which
  is heading to stable.

  And then just the io_uring equivalent of the RESOLVE_CACHED fix in
  commit a0fc452a5d7f from last week for build_open_flags()"

* tag 'io_uring-6.5-2023-08-11' of git://git.kernel.dk/linux:
  io_uring/parisc: Adjust pgoff in io_uring mmap() for parisc
  io_uring: correct check for O_TMPFILE
parisc: perf: Make cpu_device variable static 2023-08-10T21:00:18+00:00 Helge Deller deller@gmx.de 2023-08-10T21:00:18+00:00 d863066e6ce0a70c479a7f618088912ac0ba44ac Signed-off-by: Helge Deller <deller@gmx.de> 
Signed-off-by: Helge Deller <deller@gmx.de>
parisc: ftrace: Add declaration for ftrace_function_trampoline() 2023-08-10T20:51:54+00:00 Helge Deller deller@gmx.de 2023-08-10T20:51:54+00:00 2794f8ecb483b680610968423179005758a5ce63 Make sparse happy by adding declaration for ftrace_function_trampoline(). Signed-off-by: Helge Deller <deller@gmx.de> 
Make sparse happy by adding declaration for
ftrace_function_trampoline().

Signed-off-by: Helge Deller <deller@gmx.de>
parisc: processor: Include asm/smp.h for init_per_cpu() 2023-08-10T20:32:24+00:00 Helge Deller deller@gmx.de 2023-08-10T20:32:24+00:00 2c9227fd1c7e508f55eb4a38e8205f317e7c4ac9 Fix sparse warning that init_per_cpu() isn't declared. Signed-off-by: Helge Deller <deller@gmx.de> 
Fix sparse warning that init_per_cpu() isn't declared.

Signed-off-by: Helge Deller <deller@gmx.de>
parisc: unaligned: Include linux/sysctl.h for unaligned_enabled 2023-08-10T20:22:03+00:00 Helge Deller deller@gmx.de 2023-08-10T18:23:01+00:00 66f80386a99f2773611e1b537ad045061fdd92ec Fix sparse warning that unaligned_enabled wasn't declared. Signed-off-by: Helge Deller <deller@gmx.de> 
Fix sparse warning that unaligned_enabled wasn't declared.

Signed-off-by: Helge Deller <deller@gmx.de>
parisc: Move proc_mckinley_root and proc_runway_root to sba_iommu 2023-08-10T20:22:03+00:00 Helge Deller deller@gmx.de 2023-08-10T17:56:19+00:00 547259580dfa9a5d345dd1b46fd5e9977654c1cc Clean up the procfs root entries for gsc, runway, and mckinley busses. Signed-off-by: Helge Deller <deller@gmx.de> 
Clean up the procfs root entries for gsc, runway, and mckinley busses.

Signed-off-by: Helge Deller <deller@gmx.de>
parisc: dma: Add prototype for pcxl_dma_start 2023-08-10T17:12:16+00:00 Helge Deller deller@gmx.de 2023-08-10T17:12:16+00:00 a4c59c9adc5f6b2a6b0115e3c4dc1e5127c2a01b Signed-off-by: Helge Deller <deller@gmx.de> 
Signed-off-by: Helge Deller <deller@gmx.de>
parisc: parisc_ksyms: Include libgcc.h for libgcc prototypes 2023-08-10T16:34:05+00:00 Helge Deller deller@gmx.de 2023-08-10T16:32:24+00:00 388d5bdba3fd791f734cc6687309fe59fb3343bb Signed-off-by: Helge Deller <deller@gmx.de> 
Signed-off-by: Helge Deller <deller@gmx.de>
parisc: firmware: Mark pdc_result buffers local 2023-08-10T15:32:10+00:00 Helge Deller deller@gmx.de 2023-08-10T02:34:58+00:00 eed869aaf1305444434ad5a9a56abc45aacc0c40 This fixes a sparse warning which suggest to make those static. Signed-off-by: Helge Deller <deller@gmx.de> 
This fixes a sparse warning which suggest to make those static.

Signed-off-by: Helge Deller <deller@gmx.de>