It fixes this W=1 compile error :
../arch/powerpc/lib/pmem.c:51:6: error: no previous prototype for
‘arch_wb_cache_pmem’ [-Werror=missing-prototypes]
51 | void arch_wb_cache_pmem(void *addr, size_t size)
| ^~
../arch/powerpc/lib/pmem.c:58:6: error: no previous
It fixes these W=1 compile errors :
../arch/powerpc/kvm/powerpc.c:1521:5: error: no previous prototype for
‘kvmppc_get_vmx_dword’ [-Werror=missing-prototypes]
1521 | int kvmppc_get_vmx_dword(struct kvm_vcpu *vcpu, int index, u64 *val)
| ^~~~
The last use of 'status' was removed in 2012. Remove the variable to
fix this W=1 compile error.
../arch/powerpc/platforms/pseries/ras.c: In function ‘ras_epow_interrupt’:
../arch/powerpc/platforms/pseries/ras.c:318:6: error: variable ‘status’ set but
not used [-Werror=unused-but-set-variable]
Fixes these W=1 errors :
../arch/powerpc/kernel/setup_64.c:261:13: error: no previous prototype for
‘record_spr_defaults’ [-Werror=missing-prototypes]
261 | void __init record_spr_defaults(void)
| ^~~
../arch/powerpc/kernel/setup_64.c:1011:6: error: no
It fixes this W=1 compile error :
../arch/powerpc/mm/pgtable.c:337:8: error: no previous prototype for
‘__find_linux_pte’ [-Werror=missing-prototypes]
337 | pte_t *__find_linux_pte(pgd_t *pgdir, unsigned long ea,
|^~~~
Cc: "Aneesh Kumar K.V"
Signed-off-by: Cédric Le
It fixes this W=1 compile error :
../arch/powerpc/mm/book3s64/hash_utils.c:1867:6: error: no previous prototype
for ‘hpte_insert_repeating’ [-Werror=missing-prototypes]
1867 | long hpte_insert_repeating(unsigned long hash, unsigned long vpn,
| ^
Cc: "Aneesh Kumar
It fixes this W=1 compile error :
../arch/powerpc/mm/book3s64/hash_utils.c:1515:5: error: no previous prototype
for ‘__hash_page’ [-Werror=missing-prototypes]
1515 | int __hash_page(unsigned long trap, unsigned long ea, unsigned long
dsisr,
| ^~~
It fixes this W=1 compile error :
../arch/powerpc/kernel/smp.c:569:6: error: no previous prototype for
‘tick_broadcast’ [-Werror=missing-prototypes]
569 | void tick_broadcast(const struct cpumask *mask)
| ^~
Cc: "Gautham R. Shenoy"
Signed-off-by: Cédric Le Goater
---
Hello,
Here is an assorted collection of fixes for W=1.
Cheers,
C.
Cédric Le Goater (23):
powerpc/mm: Include __find_linux_pte() prototype
powerpc/pseries/ras: Remove unused variable 'status'
powerpc/pseries/eeh: Make pseries_pcibios_bus_add_device() static
powerpc/pseries/ras: Make
It fixes this W=1 compile error:
../arch/powerpc/platforms/pseries/eeh_pseries.c:46:6: error: no previous
prototype for ‘pseries_pcibios_bus_add_device’ [-Werror=missing-prototypes]
46 | void pseries_pcibios_bus_add_device(struct pci_dev *pdev)
| ^~
It fixes this link warning:
WARNING: modpost: vmlinux.o(.text.unlikely+0x2d98): Section mismatch in
reference from the function init_big_cores.isra.0() to the function
.init.text:init_thread_group_cache_map()
The function init_big_cores.isra.0() references
the function __init
--
Shawn Landden
We need r1 to be properly set before activating MMU, otherwise any new
exception taken while saving registers into the stack in syscall
prologs will use the user stack, which is wrong and will even lockup
or crash when KUAP is selected.
Do that by switching the meaning of r11 and r1 until we have
Le 21/12/2020 à 04:22, Nicholas Piggin a écrit :
Queued spinlocks have shown to have good performance and fairness
properties even on smaller (2 socket) POWER systems. This selects
them automatically for 64s. For other platforms they are de-selected,
the standard spinlock is far simpler and
Andy Shevchenko writes:
> On Fri, Dec 18, 2020 at 4:37 PM Enrico Weigelt, metux IT consult
> wrote:
>
>> + if (printk_ratelimit())
>> + pr_warn("spurious IRQ: irq=%d hwirq=%d nr_irqs=%d\n",
>> + irq, hwirq, nr_irqs);
>
> Perhaps
Kajol Jain writes:
> hv_24x7 performance monitoring unit creates list of supported events
> from the event catalog obtained via HCALL. hv_24x7 catalog could also
> contain invalid or dummy events (with names like FREE_* or CPM_FREE_*
> and RESERVED*). These events do not have any hardware
Since the commit 2b0e86cc5de6 ("powerpc/fsl_booke/32: implement KASLR
infrastructure"), the powerpc system is ready to support KASLR.
To reduces the risk of invalidating address randomization, don't print the
EIP/LR hex values in dump_stack() and show_regs().
This patch follows x86 and arm64's
Queued spinlocks have shown to have good performance and fairness
properties even on smaller (2 socket) POWER systems. This selects
them automatically for 64s. For other platforms they are de-selected,
the standard spinlock is far simpler and smaller code, and single
chips with a handful of cores
Force inlining of get_tb() in order to avoid getting
following function in vdso32, leading to suboptimal
performance in clock_gettime()
0688 <.get_tb>:
688: 7c 6d 42 a6 mftbu r3
68c: 7c 8c 42 a6 mftbr4
690: 7d 2d 42 a6 mftbu r9
694: 7c 03 48 40 cmplw
Le 20/12/2020 à 00:48, Nicholas Piggin a écrit :
This allows some nest MMU features to be compiled away if coprocessor
support is not selected.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/include/asm/book3s/64/mmu.h | 2 ++
Le 20/12/2020 à 00:48, Nicholas Piggin a écrit :
This allows the function to be entirely noped if hash support is
compiled out (not possible yet).
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/book3s/pgtable.h | 11 ++-
arch/powerpc/mm/book3s32/mmu.c| 4
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