Christophe Leroy wrote:
BPF_REG_5, BPF_REG_AX and TMP_REG are mapped on non volatile registers
because there are not enough volatile registers, but they don't need
to be preserved on function calls.
So when some volatile registers become available, those registers can
always be reallocated
On Fri, 14 Jan 2022 14:13:16 +1100 Michael Ellerman wrote:
> Since commit adeef3e32146 ("net: constify netdev->dev_addr") the bmac
> driver no longer builds with the following errors (pmac32_defconfig):
>
> linux/drivers/net/ethernet/apple/bmac.c: In function ‘bmac_probe’:
>
On Fri, 14 Jan 2022 14:12:52 +1100 Michael Ellerman wrote:
> Since commit adeef3e32146 ("net: constify netdev->dev_addr") the mace
> driver no longer builds with various errors (pmac32_defconfig):
>
> linux/drivers/net/ethernet/apple/mace.c: In function ‘mace_probe’:
>
power_pmu_wants_prompt_pmi is used to decide if PMI should
be taken prompt. This is valid only for ppc64 and is used
in CONFIG_PPC_BOOK3S_64 context. Hence include the function
under config check for PPC64
Fixes warning for 32-bit compilation:
>> arch/powerpc/perf/core-book3s.c:2455:6: warning:
Since commit adeef3e32146 ("net: constify netdev->dev_addr") the bmac
driver no longer builds with the following errors (pmac32_defconfig):
linux/drivers/net/ethernet/apple/bmac.c: In function ‘bmac_probe’:
linux/drivers/net/ethernet/apple/bmac.c:1287:20: error: assignment of
read-only
Since commit adeef3e32146 ("net: constify netdev->dev_addr") the mace
driver no longer builds with various errors (pmac32_defconfig):
linux/drivers/net/ethernet/apple/mace.c: In function ‘mace_probe’:
linux/drivers/net/ethernet/apple/mace.c:170:20: error: assignment of
read-only location
Commit 770cec16cdc9 ("powerpc/audit: Simplify syscall_get_arch()")
replaced test_tsk_thread_flag(task, TIF_32BIT)) by is_32bit_task().
But is_32bit_task() applies on current task while be want the test
done on task 'task'
So re-use test_tsk_thread_flag() instead.
Reported-by: Dmitry V. Levin
On 13 Jan 2022, at 9:57, Zi Yan wrote:
> On 12 Jan 2022, at 6:01, David Hildenbrand wrote:
>
>> On 05.01.22 22:47, Zi Yan wrote:
>>> From: Zi Yan
>>>
>>> In isolate_migratepages_block(), a !PageLRU tail page can be encountered
>>> when the page is larger than a pageblock. Use compound head page
On Fri, Aug 20, 2021 at 09:39:14AM +, Christophe Leroy wrote:
> Make use of is_32bit_task() and CONFIG_CPU_LITTLE_ENDIAN
> to simplify syscall_get_arch().
>
> Signed-off-by: Christophe Leroy
> ---
> arch/powerpc/include/asm/syscall.h | 15 +--
> 1 file changed, 5 insertions(+),
On 13.01.22 16:46, Zi Yan wrote:
> On 12 Jan 2022, at 6:04, David Hildenbrand wrote:
>
>> On 05.01.22 22:47, Zi Yan wrote:
>>> From: Zi Yan
>>>
>>> alloc_migration_target() is used by alloc_contig_range() and non-LRU
>>> movable compound pages can be migrated. Current code does not allocate the
On 12 Jan 2022, at 6:04, David Hildenbrand wrote:
> On 05.01.22 22:47, Zi Yan wrote:
>> From: Zi Yan
>>
>> alloc_migration_target() is used by alloc_contig_range() and non-LRU
>> movable compound pages can be migrated. Current code does not allocate the
>> right page size for such pages. Check
On 12 Jan 2022, at 6:01, David Hildenbrand wrote:
> On 05.01.22 22:47, Zi Yan wrote:
>> From: Zi Yan
>>
>> In isolate_migratepages_block(), a !PageLRU tail page can be encountered
>> when the page is larger than a pageblock. Use compound head page for the
>> checks inside and skip the entire
On 13 Jan 2022, at 7:28, David Hildenbrand wrote:
> On 13.01.22 12:36, Mike Rapoport wrote:
>> On Wed, Jan 12, 2022 at 11:54:49AM +0100, David Hildenbrand wrote:
>>> On 05.01.22 22:47, Zi Yan wrote:
From: Zi Yan
This is done in addition to MIGRATE_ISOLATE pageblock merge
On 12 Jan 2022, at 5:54, David Hildenbrand wrote:
> On 05.01.22 22:47, Zi Yan wrote:
>> From: Zi Yan
>>
>> This is done in addition to MIGRATE_ISOLATE pageblock merge avoidance.
>> It prepares for the upcoming removal of the MAX_ORDER-1 alignment
>> requirement for CMA and alloc_contig_range().
On Thu, Dec 30, 2021 at 06:11:21PM +0300, Maxim Kiselev wrote:
> T1040RDB has two RTL8211E-VB phys which requires setting
> of internal delays for correct work.
>
> Changing the phy-connection-type property to `rgmii-id`
> will fix this issue.
>
> Signed-off-by: Maxim Kiselev
> Reviewed-by:
On 13.01.22 12:36, Mike Rapoport wrote:
> On Wed, Jan 12, 2022 at 11:54:49AM +0100, David Hildenbrand wrote:
>> On 05.01.22 22:47, Zi Yan wrote:
>>> From: Zi Yan
>>>
>>> This is done in addition to MIGRATE_ISOLATE pageblock merge avoidance.
>>> It prepares for the upcoming removal of the
Presently PAPR doesn't support injecting smart errors on an
NVDIMM. This makes testing the NVDIMM health reporting functionality
difficult as simulating NVDIMM health related events need a hacked up
qemu version.
To solve this problem this patch proposes simulating certain set of
NVDIMM health
On Wed, Jan 12, 2022 at 11:54:49AM +0100, David Hildenbrand wrote:
> On 05.01.22 22:47, Zi Yan wrote:
> > From: Zi Yan
> >
> > This is done in addition to MIGRATE_ISOLATE pageblock merge avoidance.
> > It prepares for the upcoming removal of the MAX_ORDER-1 alignment
> > requirement for CMA and
On 12.01.22 20:33, Hari Bathini wrote:
> With commit a4e92ce8e4c8 ("powerpc/fadump: Reservationless firmware
> assisted dump"), Linux kernel's Contiguous Memory Allocator (CMA)
> based reservation was introduced in fadump. That change was aimed at
> using CMA to let applications utilize the memory
> +{
> + if (!cma)
> + return;
Do we really need that check for NULL?
> +
> + cma->reserve_pages_on_error = true;
> +}
> +
> /**
> * cma_init_reserved_mem() - create custom contiguous area from reserved
> memory
> * @base: Base address of the reserved area
> @@ -204,6
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