Le 10/07/2023 à 22:24, Matthew Wilcox a écrit :
> On Sat, Mar 18, 2023 at 09:19:04AM +, Christophe Leroy wrote:
>> void set_ptes(struct mm_struct *mm, unsigned long addr, pte_t *ptep,
>> pte_t pte, unsigned int nr)
>> {
>> pgprot_t prot;
>> unsigned long pfn;
>>
On Sat, Mar 18, 2023 at 09:19:04AM +, Christophe Leroy wrote:
> void set_ptes(struct mm_struct *mm, unsigned long addr, pte_t *ptep,
> pte_t pte, unsigned int nr)
> {
> pgprot_t prot;
> unsigned long pfn;
> /*
>* Make sure hardware valid bit is not set.
Le 17/03/2023 à 04:47, Matthew Wilcox a écrit :
> On Wed, Mar 15, 2023 at 10:18:22AM +, Christophe Leroy wrote:
>> I investigated a bit further and can confirm now that the above won't
>> always work, see comment
>>
On Wed, Mar 15, 2023 at 10:18:22AM +, Christophe Leroy wrote:
> I investigated a bit further and can confirm now that the above won't
> always work, see comment
> https://elixir.bootlin.com/linux/v6.3-rc2/source/arch/powerpc/include/asm/nohash/32/pgtable.h#L147
>
> And then you see
>
Le 15/03/2023 à 10:43, Christophe Leroy a écrit :
>
>
> Le 15/03/2023 à 06:14, Matthew Wilcox (Oracle) a écrit :
>> Add set_ptes(), update_mmu_cache_range() and flush_dcache_folio().
>> Change the PG_arch_1 (aka PG_dcache_dirty) flag from being per-page to
>> per-folio.
>>
>> Signed-off-by:
On Wed, Mar 15, 2023 at 05:14:28AM +, Matthew Wilcox (Oracle) wrote:
> Add set_ptes(), update_mmu_cache_range() and flush_dcache_folio().
> Change the PG_arch_1 (aka PG_dcache_dirty) flag from being per-page to
> per-folio.
>
> Signed-off-by: Matthew Wilcox (Oracle)
> Cc: Michael Ellerman
>
Le 15/03/2023 à 06:14, Matthew Wilcox (Oracle) a écrit :
> Add set_ptes(), update_mmu_cache_range() and flush_dcache_folio().
> Change the PG_arch_1 (aka PG_dcache_dirty) flag from being per-page to
> per-folio.
>
> Signed-off-by: Matthew Wilcox (Oracle)
> Cc: Michael Ellerman
> Cc: Nicholas
Add set_ptes(), update_mmu_cache_range() and flush_dcache_folio().
Change the PG_arch_1 (aka PG_dcache_dirty) flag from being per-page to
per-folio.
Signed-off-by: Matthew Wilcox (Oracle)
Cc: Michael Ellerman
Cc: Nicholas Piggin
Cc: Christophe Leroy
Cc: linuxppc-dev@lists.ozlabs.org
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