From: Kajol Jain
The testcase uses check_extended_regs_support and
perf_get_platform_reg_mask function to check if the
platform has extended reg support. This will help to
check if sampling pmu selftest is enabled or not for
a given platform.
Signed-off-by: Kajol Jain
Signed-off-by: Athira Raje
Updated the comments in the pmu selftests to include
power11/ISA v3.1 where ever required.
Signed-off-by: Athira Rajeev
---
.../event_code_tests/group_constraint_l2l3_sel_test.c | 2 +-
.../group_constraint_radix_scope_qual_test.c | 2 +-
.../group_constraint_thresh_cmp_test.c
Add check for power11 pvr in the selftest utility
functions. Selftests uses pvr value to check for platform
support inorder to run the tests. pvr is also used to
send the extended mask value to capture sampling registers.
Update some of the utility functions to use hwcap2 inorder
to return platfor
Some of the tests depends on pvr value to choose
the event. Example:
- event_alternatives_tests_p10: alternative event depends
on registered PMU driver which is based on pvr
- generic_events_valid_test varies based on platform
- bhrb_filter_map_test: again its dependent on pmu to
decide which b
Before SLUB initialization, various subsystems used memblock_alloc to
allocate memory. In most cases, when memory allocation fails, an immediate
panic is required. To simplify this behavior and reduce repetitive checks,
introduce `memblock_alloc_or_panic`. This function ensures that memory
allocati
On Fri, 20 Dec 2024 17:26:38 +0800 Guo Weikang
wrote:
> Before SLUB initialization, various subsystems used memblock_alloc to
> allocate memory. In most cases, when memory allocation fails, an immediate
> panic is required. To simplify this behavior and reduce repetitive checks,
> introduce `mem
Remove hard-coded strings by using the str_on_off() helper function.
Signed-off-by: Thorsten Blum
---
arch/powerpc/kernel/setup-common.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/setup-common.c
b/arch/powerpc/kernel/setup-common.c
index 6fa17944
On 20.12.24 20:01, David Hildenbrand wrote:
On 17.12.24 06:12, Alistair Popple wrote:
In preparation for using insert_page() for DAX, enhance
insert_page_into_pte_locked() to handle establishing writable
mappings. Recall that DAX returns VM_FAULT_NOPAGE after installing a
PTE which bypasses the
On 17.12.24 06:12, Alistair Popple wrote:
In preparation for using insert_page() for DAX, enhance
insert_page_into_pte_locked() to handle establishing writable
mappings. Recall that DAX returns VM_FAULT_NOPAGE after installing a
PTE which bypasses the typical set_pte_range() in finish_fault.
Si
On 17.12.24 06:12, Alistair Popple wrote:
Currently DAX folio/page reference counts are managed differently to
normal pages. To allow these to be managed the same as normal pages
introduce vmf_insert_folio_pud. This will map the entire PUD-sized folio
and take references as it would for a normall
+vm_fault_t vmf_insert_folio_pmd(struct vm_fault *vmf, struct folio *folio,
bool write)
+{
+ struct vm_area_struct *vma = vmf->vma;
+ unsigned long addr = vmf->address & PMD_MASK;
+ pfn_t pfn = pfn_to_pfn_t(folio_pfn(folio));
+ struct mm_struct *mm = vma->vm_mm;
+
On 17.12.24 06:13, Alistair Popple wrote:
Add helpers to determine if a page or folio is a device dax or fs dax
page or folio.
... why is it "device_dax" but "fsdax" ? In particular because you wrote
"fs dax" above.
I see "fsdax" getting used in some functions. But then, people usually
say
On 19.12.24 00:11, Alistair Popple wrote:
On Tue, Dec 17, 2024 at 11:31:25PM +0100, David Hildenbrand wrote:
On 17.12.24 06:13, Alistair Popple wrote:
The procfs mmu files such as smaps currently ignore device dax and fs
dax pages because these pages are considered special. To maintain
existing
return -EBUSY;
diff --git a/mm/rmap.c b/mm/rmap.c
index c6c4d4e..39d0439 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1203,6 +1203,11 @@ static __always_inline unsigned int
__folio_add_rmap(struct folio *folio,
}
atomic_inc(&folio->_la
But that's a bit weird: we call __init_single_page()->init_page_count() to
initialize it to 1, to then set it back to 0.
Maybe we can just pass to __init_single_page() the refcount we want to have
directly? Can be a patch on top of course.
Once the dust settles on this series we won't nee
__module_text_address() can be invoked within a RCU section, there is no
requirement to have preemption disabled.
Replace the preempt_disable() section around __module_text_address()
with RCU.
Cc: Christophe Leroy
Cc: Madhavan Srinivasan
Cc: Mark Rutland
Cc: Masami Hiramatsu
Cc: Michael Eller
dereference_symbol_descriptor() needs to obtain the module pointer
belonging to pointer in order to resolve that pointer.
The returned mod pointer is obtained under RCU-sched/ preempt_disable()
guarantees and needs to be used within this section to ensure that the
module is not removed in the meant
On Mon, 30 Sep 2024 13:20:46 +0200, Julia Lawall wrote:
> Reorganize kerneldoc parameter names to match the parameter
> order in the function header.
>
> The misordered cases were identified using the following
> Coccinelle semantic patch:
>
> //
> @initialize:ocaml@
> @@
>
> [...]
Applied,
Jakub Kicinski writes:
> On Wed, 18 Dec 2024 17:59:17 -0800 Jakub Kicinski wrote:
>> On Wed, 18 Dec 2024 21:55:12 +1100 Michael Ellerman wrote:
>> > This driver can no longer be built since support for IBM Cell Blades was
>> > removed, in particular PPC_IBM_CELL_BLADE.
>> >
>> > Remove the driver
On 20/12/24 13:08 Christian Zigotzky wrote:
On 18/12/24 15:41, Christian Zigotzky wrote:
On 18/12/24 12:10, Christian Zigotzky wrote:
Hello,
The KVM HV host module doesn't work anymore since the PowerPC
updates 6.13-1 [1] and PowerPC MM updates [2].
We have tested it with our FSL P5020/P504
On 18/12/24 15:41, Christian Zigotzky wrote:
On 18/12/24 12:10, Christian Zigotzky wrote:
Hello,
The KVM HV host module doesn't work anymore since the PowerPC updates
6.13-1 [1] and PowerPC MM updates [2].
We have tested it with our FSL P5020/P5040 boards [3].
The guest kernel doesn't boot.
21 matches
Mail list logo
