On Wed, Feb 26, 2020 at 10:46:13AM +0100, Christophe Leroy wrote:
>
>
> Le 26/02/2020 à 10:13, Mike Rapoport a écrit :
> > On Tue, Feb 18, 2020 at 12:54:40PM +0200, Mike Rapoport wrote:
> > > On Sun, Feb 16, 2020 at 11:41:07AM +0100, Christophe Leroy wrote:
> >
On Tue, Feb 18, 2020 at 12:54:40PM +0200, Mike Rapoport wrote:
> On Sun, Feb 16, 2020 at 11:41:07AM +0100, Christophe Leroy wrote:
> >
> >
> > Le 16/02/2020 à 09:18, Mike Rapoport a écrit :
> > > From: Mike Rapoport
> > >
> > > Implement pri
From: Mike Rapoport
Hi,
These patches convert several architectures to use page table folding and
remove __ARCH_HAS_5LEVEL_HACK along with include/asm-generic/5level-fixup.h
and include/asm-generic/pgtable-nop4d-hack.h. With that we'll have a single
and consistent way of dealing with page table
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate, replace 5level-fixup.h with pgtable-nop4d.h and
remove __ARCH_USE_5LEVEL_HACK.
Since arm and arm64 share kvm memory management bits, make the conversion
for both variants
From: Mike Rapoport
No architecture defines __ARCH_USE_5LEVEL_HACK and therefore
pgtable-nop4d-hack.h will be never actually included.
Remove it.
Signed-off-by: Mike Rapoport
---
include/asm-generic/pgtable-nop4d-hack.h | 64
include/asm-generic/pgtable-nopud.h
From: Mike Rapoport
There are no architectures that use include/asm-generic/5level-fixup.h
therefore it can be removed along with __ARCH_HAS_5LEVEL_HACK define and
the code it surrounds
Signed-off-by: Mike Rapoport
---
include/asm-generic/5level-fixup.h | 58
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate and replace 5level-fixup.h with pgtable-nop4d.h.
Signed-off-by: Mike Rapoport
Tested-by: Christophe Leroy # 8xx and 83xx
---
arch/powerpc/include/asm/book3s/32/pgtable.h
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate and remove usage of __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
---
arch/sh/include/asm/pgtable-2level.h | 1 -
arch/sh/include/asm/pgtable-3level.h | 1 -
arch/sh
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate, remove usage of __ARCH_USE_5LEVEL_HACK and replace
5level-fixup.h with pgtable-nop4d.h
Signed-off-by: Mike Rapoport
---
arch/ia64/include/asm/pgalloc.h | 4 ++--
arch/ia64
From: Mike Rapoport
h8300 is a nommu architecture and does not require fixup for upper layers
of the page tables because it is already handled by the generic nommu
implementation.
Remove definition of __ARCH_USE_5LEVEL_HACK in
arch/h8300/include/asm/pgtable.h
Signed-off-by: Mike Rapoport
From: Mike Rapoport
The hexagon architecture has 2 level page tables and as such most of the
page table folding is already implemented in asm-generic/pgtable-nopmd.h.
Fixup the only place in arch/hexagon to unfold the p4d level and remove
__ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
From: Mike Rapoport
The __pXd_offset() macros are identical to the pXd_index() macros and there
is no point to keep both of them. All architectures define and use
pXd_index() so let's keep only those to make mips consistent with the rest
of the kernel.
Signed-off-by: Mike Rapoport
---
arch/sh
y user of get_pteptr() is __change_page_attr()
which operates on kernel context and on lowmem pages only.
Move page table traversal to __change_page_attr() and drop get_pteptr().
Signed-off-by: Christophe Leroy
Signed-off-by: Mike Rapoport
---
arch/powerpc/
From: Geert Uytterhoeven
- Convert from printk() to pr_*(),
- Add missing continuations,
- Use "%llx" to format u64,
- Join multiple prints in show_fault_oops() into a single print.
Signed-off-by: Geert Uytterhoeven
Signed-off-by: Mike Rapoport
---
arch/sh/mm/fa
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate and remove usage of __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
---
arch/nios2/include/asm/pgtable.h | 3 +--
arch/nios2/mm/fault.c| 9 +++--
arch
From: Mike Rapoport
The unicore32 architecture has 2 level page tables and
asm-generic/pgtable-nopmd.h and explicit casts from pud_t to pgd_t for page
table folding.
Add p4d walk in the only place that actually unfolds the pud level and
remove __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate and remove usage of __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
---
arch/openrisc/include/asm/pgtable.h | 1 -
arch/openrisc/mm/fault.c| 10
On Wed, Jan 22, 2020 at 06:50:17PM +, Will Deacon wrote:
> On Mon, Jan 13, 2020 at 01:13:22PM +0200, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > This is a part of clean up of the page table manipulation code that aims to
> > remove asm-generic/5level-fixu
On Sun, Feb 16, 2020 at 11:41:07AM +0100, Christophe Leroy wrote:
>
>
> Le 16/02/2020 à 09:18, Mike Rapoport a écrit :
> > From: Mike Rapoport
> >
> > Implement primitives necessary for the 4th level folding, add walks of p4d
> > level where appropriate and re
On Wed, Feb 19, 2020 at 01:07:55PM +0100, Christophe Leroy wrote:
>
> Le 16/02/2020 à 09:18, Mike Rapoport a écrit :
> > diff --git a/arch/powerpc/mm/ptdump/ptdump.c
> > b/arch/powerpc/mm/ptdump/ptdump.c
> > index 206156255247..7bd4b81d5b5d 100644
> > --- a/a
From: Mike Rapoport
The __pXd_offset() macros are identical to the pXd_index() macros and there
is no point to keep both of them. All architectures define and use
pXd_index() so let's keep only those to make mips consistent with the rest
of the kernel.
Signed-off-by: Mike Rapoport
---
arch/sh
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate and remove usage of __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
---
arch/openrisc/include/asm/pgtable.h | 1 -
arch/openrisc/mm/fault.c| 10
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate and replace 5level-fixup.h with pgtable-nop4d.h.
Signed-off-by: Mike Rapoport
Tested-by: Christophe Leroy # 8xx and 83xx
---
arch/powerpc/include/asm/book3s/32/pgtable.h
From: Mike Rapoport
The unicore32 architecture has 2 level page tables and
asm-generic/pgtable-nopmd.h and explicit casts from pud_t to pgd_t for page
table folding.
Add p4d walk in the only place that actually unfolds the pud level and
remove __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate and remove usage of __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
---
arch/sh/include/asm/pgtable-2level.h | 1 -
arch/sh/include/asm/pgtable-3level.h | 1 -
arch/sh
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate and remove usage of __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
---
arch/nios2/include/asm/pgtable.h | 3 +--
arch/nios2/mm/fault.c| 9 +++--
arch
From: Geert Uytterhoeven
- Convert from printk() to pr_*(),
- Add missing continuations,
- Use "%llx" to format u64,
- Join multiple prints in show_fault_oops() into a single print.
Signed-off-by: Geert Uytterhoeven
Signed-off-by: Mike Rapoport
---
arch/sh/mm/fa
From: Mike Rapoport
There are no architectures that use include/asm-generic/5level-fixup.h
therefore it can be removed along with __ARCH_HAS_5LEVEL_HACK define and
the code it surrounds
Signed-off-by: Mike Rapoport
---
include/asm-generic/5level-fixup.h | 58
From: Mike Rapoport
No architecture defines __ARCH_USE_5LEVEL_HACK and therefore
pgtable-nop4d-hack.h will be never actually included.
Remove it.
Signed-off-by: Mike Rapoport
---
include/asm-generic/pgtable-nop4d-hack.h | 64
include/asm-generic/pgtable-nopud.h
On Sun, Feb 16, 2020 at 08:22:30AM +, Russell King - ARM Linux admin wrote:
> On Sun, Feb 16, 2020 at 10:18:30AM +0200, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > Hi,
> >
> > These patches convert several architectures to use
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate, remove usage of __ARCH_USE_5LEVEL_HACK and replace
5level-fixup.h with pgtable-nop4d.h
Signed-off-by: Mike Rapoport
---
arch/ia64/include/asm/pgalloc.h | 4 ++--
arch/ia64
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate, replace 5level-fixup.h with pgtable-nop4d.h and
remove __ARCH_USE_5LEVEL_HACK.
Since arm and arm64 share kvm memory management bits, make the conversion
for both variants
From: Mike Rapoport
h8300 is a nommu architecture and does not require fixup for upper layers
of the page tables because it is already handled by the generic nommu
implementation.
Remove definition of __ARCH_USE_5LEVEL_HACK in
arch/h8300/include/asm/pgtable.h
Signed-off-by: Mike Rapoport
From: Mike Rapoport
The hexagon architecture has 2 level page tables and as such most of the
page table folding is already implemented in asm-generic/pgtable-nopmd.h.
Fixup the only place in arch/hexagon to unfold the p4d level and remove
__ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
From: Mike Rapoport
Hi,
These patches convert several architectures to use page table folding and
remove __ARCH_HAS_5LEVEL_HACK along with include/asm-generic/5level-fixup.h.
The changes are mostly about mechanical replacement of pgd accessors with p4d
ones and the addition of higher levels
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate, replace 5level-fixup.h with pgtable-nop4d.h and
remove __ARCH_USE_5LEVEL_HACK.
Since arm and arm64 share kvm memory management bits, make the conversion
for both variants
From: Mike Rapoport
Hi,
This is a part of clean up of the page table manipulation code that aims to
remove asm-generic/5level-fixup.h and asm-generic/pgtable-nop4d-hack.h
There is a single patch for both arm and arm64 because doing the conversion
separately would mean breaking the shared mmu
On Thu, Jan 09, 2020 at 08:38:54AM +0530, Anshuman Khandual wrote:
>
>
> On 12/30/2019 01:57 PM, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > Hi,
>
> Hello Mike,
>
> >
> > This is a part of clean up of the page table manipulation
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate, replace 5level-fixup.h with pgtable-nop4d.h and
remove __ARCH_USE_5LEVEL_HACK.
Since arm and arm64 share kvm memory management bits, make the conversion
for both variants
From: Mike Rapoport
Hi,
This is a part of clean up of the page table manipulation code that aims to
remove asm-generic/5level-fixup.h and asm-generic/pgtable-nop4d-hack.h
There is a single patch for both arm and arm64 because doing the conversion
separately would mean breaking the shared mmu
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate, replace 5level-fixup.h with pgtable-nop4d.h and
remove __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
---
arch/arm64/include/asm/kvm_mmu.h| 10 +-
arch/arm64
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate, remove usage of __ARCH_USE_5LEVEL_HACK and replace
5level-fixup.h with pgtable-nop4d.h
Signed-off-by: Mike Rapoport
---
arch/ia64/include/asm/pgalloc.h | 4 ++--
arch/ia64
From: Mike Rapoport
The hexagon architecture has 2 level page tables and as such most of the
page table folding is already implemented in asm-generic/pgtable-nopmd.h.
Fixup the only place in arch/hexagon to unfold the p4d level and remove
__ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
From: Mike Rapoport
h8300 is a nommu architecture and does not require fixup for upper layers
of the page tables because it is already handled by the generic nommu
implementation.
Remove definition of __ARCH_USE_5LEVEL_HACK in
arch/h8300/include/asm/pgtable.h
Signed-off-by: Mike Rapoport
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate, and remove __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
---
arch/arm/include/asm/pgtable.h | 1 -
arch/arm/lib/uaccess_with_memcpy.c | 7 +-
arch/arm/mach
From: Mike Rapoport
Hi,
These patches convert several architectures to use page table folding and
remove __ARCH_HAS_5LEVEL_HACK along with include/asm-generic/5level-fixup.h
and include/asm-generic/pgtable-nop4d-hack.h. With that we'll have a single
and consistent way of dealing with page table
From: Mike Rapoport
There are no architectures that use include/asm-generic/5level-fixup.h
therefore it can be removed along with __ARCH_HAS_5LEVEL_HACK define and
the code it surrounds
Signed-off-by: Mike Rapoport
---
include/asm-generic/5level-fixup.h | 58
From: Mike Rapoport
The unicore32 architecture has 2 level page tables and
asm-generic/pgtable-nopmd.h and explicit casts from pud_t to pgd_t for page
table folding.
Add p4d walk in the only place that actually unfolds the pud level and
remove __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate and remove usage of __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
---
arch/nios2/include/asm/pgtable.h | 3 +--
arch/nios2/mm/fault.c| 9 +++--
arch
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate and replace 5level-fixup.h with pgtable-nop4d.h.
Signed-off-by: Mike Rapoport
Tested-by: Christophe Leroy # 8xx and 83xx
---
arch/powerpc/include/asm/book3s/32/pgtable.h
From: Geert Uytterhoeven
- Convert from printk() to pr_*(),
- Add missing continuations,
- Use "%llx" to format u64,
- Join multiple prints in show_fault_oops() into a single print.
Signed-off-by: Geert Uytterhoeven
Signed-off-by: Mike Rapoport
---
arch/sh/mm/fa
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate and remove usage of __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
---
arch/sh/include/asm/pgtable-2level.h | 1 -
arch/sh/include/asm/pgtable-3level.h | 1 -
arch/sh
From: Mike Rapoport
No architecture defines __ARCH_USE_5LEVEL_HACK and therefore
pgtable-nop4d-hack.h will be never actually included.
Remove it.
Signed-off-by: Mike Rapoport
---
include/asm-generic/pgtable-nop4d-hack.h | 64
include/asm-generic/pgtable-nopud.h
From: Mike Rapoport
The __pXd_offset() macros are identical to the pXd_index() macros and there
is no point to keep both of them. All architectures define and use
pXd_index() so let's keep only those to make mips consistent with the rest
of the kernel.
Signed-off-by: Mike Rapoport
---
arch/sh
From: Mike Rapoport
Implement primitives necessary for the 4th level folding, add walks of p4d
level where appropriate and remove usage of __ARCH_USE_5LEVEL_HACK.
Signed-off-by: Mike Rapoport
---
arch/openrisc/include/asm/pgtable.h | 1 -
arch/openrisc/mm/fault.c| 10
On Fri, May 15, 2020 at 11:40:12AM -0700, Andrew Morton wrote:
> On Tue, 14 Apr 2020 18:34:44 +0300 Mike Rapoport wrote:
>
> > Implement primitives necessary for the 4th level folding, add walks of p4d
> > level where appropriate, replace 5level-fixup.h with pgtable-nop4
Hi Marek,
On Mon, May 11, 2020 at 08:36:41AM +0200, Marek Szyprowski wrote:
> Hi Mike,
>
> On 08.05.2020 19:42, Mike Rapoport wrote:
> > On Fri, May 08, 2020 at 08:53:27AM +0200, Marek Szyprowski wrote:
> >> On 07.05.2020 18:11, Mike Rapoport wrote:
> >>> On T
On Fri, May 08, 2020 at 08:53:27AM +0200, Marek Szyprowski wrote:
> Hi Mike,
>
> On 07.05.2020 18:11, Mike Rapoport wrote:
> > On Thu, May 07, 2020 at 02:16:56PM +0200, Marek Szyprowski wrote:
> >> On 14.04.2020 17:34, Mike Rapoport wrote:
> >>> From:
On Fri, Mar 06, 2020 at 08:00:16PM -0800, Andrew Morton wrote:
> On Thu, 27 Feb 2020 10:46:01 +0200 Mike Rapoport wrote:
>
> > Commit 8d30c14cab30 ("powerpc/mm: Rework I$/D$ coherency (v3)") and
> > commit 90ac19a8b21b ("[POWERPC] Abolish iopa(), mm_ptov(),
Hi,
On Thu, May 07, 2020 at 02:16:56PM +0200, Marek Szyprowski wrote:
> Hi
>
> On 14.04.2020 17:34, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > Implement primitives necessary for the 4th level folding, add walks of p4d
> > level where appropriate,
On Wed, May 12, 2021 at 09:00:02AM +0200, Ard Biesheuvel wrote:
> On Tue, 11 May 2021 at 12:05, Mike Rapoport wrote:
> >
> > From: Mike Rapoport
> >
> > Hi,
> >
> > These patches aim to remove CONFIG_HOLES_IN_ZONE and essentially hardwire
> > pfn_val
On Wed, May 12, 2021 at 09:59:33AM +0200, Ard Biesheuvel wrote:
> On Wed, 12 May 2021 at 09:34, Mike Rapoport wrote:
> >
> > On Wed, May 12, 2021 at 09:00:02AM +0200, Ard Biesheuvel wrote:
> > > On Tue, 11 May 2021 at 12:05, Mike Rapoport wrote:
> > &
On Tue, May 11, 2021 at 04:40:01PM -0700, Andrew Morton wrote:
> On Tue, 11 May 2021 13:05:50 +0300 Mike Rapoport wrote:
>
> > From: Mike Rapoport
> >
> > The arm64's version of pfn_valid() differs from the generic because of two
> > reasons:
> >
> >
On Wed, May 12, 2021 at 11:08:14AM +0800, Kefeng Wang wrote:
>
> On 2021/5/11 16:48, Mike Rapoport wrote:
> > On Mon, May 10, 2021 at 11:10:20AM +0800, Kefeng Wang wrote:
> > >
> > > > > The memory is not continuous, see MEMBLOCK:
> > > > >
From: Mike Rapoport
Hi,
These patches aim to remove CONFIG_HOLES_IN_ZONE and essentially hardwire
pfn_valid_within() to 1.
The idea is to mark NOMAP pages as reserved in the memory map and restore
the intended semantics of pfn_valid() to designate availability of struct
page for a pfn
From: Mike Rapoport
Add comment describing the semantics of pfn_valid() that clarifies that
pfn_valid() only checks for availability of a memory map entry (i.e. struct
page) for a PFN rather than availability of usable memory backing that PFN.
The most "generic" version of pfn_va
From: Mike Rapoport
The struct pages representing a reserved memory region are initialized
using reserve_bootmem_range() function. This function is called for each
reserved region just before the memory is freed from memblock to the buddy
page allocator.
The struct pages for MEMBLOCK_NOMAP
From: Mike Rapoport
The intended semantics of pfn_valid() is to verify whether there is a
struct page for the pfn in question and nothing else.
Yet, on arm64 it is used to distinguish memory areas that are mapped in the
linear map vs those that require ioremap() to access them.
Introduce
From: Mike Rapoport
The arm64's version of pfn_valid() differs from the generic because of two
reasons:
* Parts of the memory map are freed during boot. This makes it necessary to
verify that there is actual physical memory that corresponds to a pfn
which is done by querying memblock
On Mon, May 10, 2021 at 11:10:20AM +0800, Kefeng Wang wrote:
>
> > > The memory is not continuous, see MEMBLOCK:
> > > memory size = 0x4c0f reserved size = 0x027ef058
> > > memory.cnt = 0xa
> > > memory[0x0][0x80a0-0x855f], 0x04c0 bytes flags: 0x0
> > > memory[0x1]
On Fri, May 07, 2021 at 03:17:08PM +0800, Kefeng Wang wrote:
>
> On 2021/5/6 20:47, Kefeng Wang wrote:
> >
> >
> > > > > > no, the CONFIG_ARM_LPAE is not set, and yes with same panic at
> > > > > > move_freepages at
> > > > > >
> > > > > > start_pfn/end_pfn [de600, de7ff], [de60, de7ff000]
On Fri, May 07, 2021 at 08:34:52PM +0800, Kefeng Wang wrote:
>
>
> On 2021/5/7 18:30, Mike Rapoport wrote:
> > On Fri, May 07, 2021 at 03:17:08PM +0800, Kefeng Wang wrote:
> > >
> > > On 2021/5/6 20:47, Kefeng Wang wrote:
> > > >
> > >
On Thu, May 13, 2021 at 11:44:00AM +0800, Kefeng Wang wrote:
> On 2021/5/12 16:26, Mike Rapoport wrote:
> > On Wed, May 12, 2021 at 11:08:14AM +0800, Kefeng Wang wrote:
> > >
> > > On 2021/5/11 16:48, Mike Rapoport wrote:
> > > > On Mon, May 10, 2021
On Sun, Apr 25, 2021 at 03:51:56PM +0800, Kefeng Wang wrote:
>
> On 2021/4/25 15:19, Mike Rapoport wrote:
>
> On Fri, Apr 23, 2021 at 04:11:16PM +0800, Kefeng Wang wrote:
>
> I tested this patchset(plus arm32 change, like arm64 does) based on
> l
On Mon, Apr 26, 2021 at 11:26:38PM +0800, Kefeng Wang wrote:
>
> On 2021/4/26 13:20, Mike Rapoport wrote:
> > On Sun, Apr 25, 2021 at 03:51:56PM +0800, Kefeng Wang wrote:
> > > On 2021/4/25 15:19, Mike Rapoport wrote:
> > >
> > > On Fri, Apr 23, 2021
On Thu, Apr 29, 2021 at 06:22:55PM +0800, Kefeng Wang wrote:
>
> On 2021/4/29 14:57, Mike Rapoport wrote:
>
> > > > Do you use SPARSMEM? If yes, what is your section size?
> > > > What is the value if CONFIG_FORCE_MAX_ZONEORDER in your configuration?
> >
On Fri, Apr 30, 2021 at 07:24:37PM +0800, Kefeng Wang wrote:
>
>
> On 2021/4/30 17:51, Mike Rapoport wrote:
> > On Thu, Apr 29, 2021 at 06:22:55PM +0800, Kefeng Wang wrote:
> > >
> > > On 2021/4/29 14:57, Mike Rapoport wrote:
> > >
> > > >
On Thu, Apr 22, 2021 at 03:00:20PM +0800, Kefeng Wang wrote:
>
> On 2021/4/21 14:51, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > Hi,
> >
> > These patches aim to remove CONFIG_HOLES_IN_ZONE and essentially hardwire
> > pfn_valid_within() to 1
On Tue, Apr 27, 2021 at 07:08:59PM +0800, Kefeng Wang wrote:
>
> On 2021/4/27 14:23, Mike Rapoport wrote:
> > On Mon, Apr 26, 2021 at 11:26:38PM +0800, Kefeng Wang wrote:
> > > On 2021/4/26 13:20, Mike Rapoport wrote:
> > > > On Sun, Apr 25, 2021 at 03
On Thu, Apr 22, 2021 at 11:28:24PM +0800, Kefeng Wang wrote:
>
> On 2021/4/22 15:29, Mike Rapoport wrote:
> > On Thu, Apr 22, 2021 at 03:00:20PM +0800, Kefeng Wang wrote:
> > > On 2021/4/21 14:51, Mike Rapoport wrote:
> > > > From: M
On Fri, Apr 23, 2021 at 04:11:16PM +0800, Kefeng Wang wrote:
>
> I tested this patchset(plus arm32 change, like arm64 does) based on lts
> 5.10，add
>
> some debug log, the useful info shows below, if we enable HOLES_IN_ZONE, no
> panic,
>
> any idea, thanks.
Are there any changes on top of
On Mon, May 03, 2021 at 10:07:01AM +0200, David Hildenbrand wrote:
> On 03.05.21 08:26, Mike Rapoport wrote:
> > On Fri, Apr 30, 2021 at 07:24:37PM +0800, Kefeng Wang wrote:
> > >
> > >
> > > On 2021/4/30 17:51, Mike Rapoport wrote:
> > > > On Th
From: Mike Rapoport
Hi,
These patches aim to remove CONFIG_HOLES_IN_ZONE and essentially hardwire
pfn_valid_within() to 1.
The idea is to mark NOMAP pages as reserved in the memory map and restore
the intended semantics of pfn_valid() to designate availability of struct
page for a pfn
From: Mike Rapoport
The intended semantics of pfn_valid() is to verify whether there is a
struct page for the pfn in question and nothing else.
Yet, on arm64 it is used to distinguish memory areas that are mapped in the
linear map vs those that require ioremap() to access them.
Introduce
From: Mike Rapoport
The arm64's version of pfn_valid() differs from the generic because of two
reasons:
* Parts of the memory map are freed during boot. This makes it necessary to
verify that there is actual physical memory that corresponds to a pfn
which is done by querying memblock
From: Mike Rapoport
The struct pages representing a reserved memory region are initialized
using reserve_bootmem_range() function. This function is called for each
reserved region just before the memory is freed from memblock to the buddy
page allocator.
The struct pages for MEMBLOCK_NOMAP
On Thu, Apr 08, 2021 at 10:46:18AM +0530, Anshuman Khandual wrote:
>
>
> On 4/7/21 10:56 PM, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > The struct pages representing a reserved memory region are initialized
> > using reserve_bootmem_range() function.
On Thu, Apr 08, 2021 at 10:42:43AM +0530, Anshuman Khandual wrote:
>
> On 4/7/21 10:56 PM, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > The arm64's version of pfn_valid() differs from the generic because of two
> > reasons:
> >
> > * Par
On Thu, Apr 08, 2021 at 10:44:58AM +0530, Anshuman Khandual wrote:
>
> On 4/7/21 10:56 PM, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > The intended semantics of pfn_valid() is to verify whether there is a
> > struct page for the pfn in question
On Thu, Apr 08, 2021 at 10:49:02AM +0530, Anshuman Khandual wrote:
> Adding James here.
>
> + James Morse
>
> On 4/7/21 10:56 PM, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > Hi,
> >
> > These patches aim to remove CONFIG_HOLES_IN_ZONE
On Thu, Apr 15, 2021 at 11:31:26AM +0200, David Hildenbrand wrote:
> On 14.04.21 22:29, Mike Rapoport wrote:
> > On Wed, Apr 14, 2021 at 05:58:26PM +0200, David Hildenbrand wrote:
> > > On 08.04.21 07:14, Anshuman Khandual wrote:
> > > >
> > > &g
On Thu, Apr 15, 2021 at 11:30:12AM +0200, David Hildenbrand wrote:
> > Not sure we really need a new pagetype here, PG_Reserved seems to be quite
> > enough to say "don't touch this". I generally agree that we could make
> > PG_Reserved a PageType and then have several sub-types for reserved
On Wed, Apr 14, 2021 at 05:27:53PM +0200, Ard Biesheuvel wrote:
> On Wed, 14 Apr 2021 at 17:14, David Hildenbrand wrote:
> >
> > On 07.04.21 19:26, Mike Rapoport wrote:
> > > From: Mike Rapoport
> > >
> > > The struct pages representing a reserved
On Wed, Apr 14, 2021 at 05:52:57PM +0200, David Hildenbrand wrote:
> On 14.04.21 17:27, Ard Biesheuvel wrote:
> > On Wed, 14 Apr 2021 at 17:14, David Hildenbrand wrote:
> > >
> > > On 07.04.21 19:26, Mike Rapoport wrote:
> > > > From: Mike Rapoport
> &g
On Wed, Apr 14, 2021 at 05:58:26PM +0200, David Hildenbrand wrote:
> On 08.04.21 07:14, Anshuman Khandual wrote:
> >
> > On 4/7/21 10:56 PM, Mike Rapoport wrote:
> > > From: Mike Rapoport
> > >
> > > The intended semantics of pfn_valid() is to v
On Wed, Apr 14, 2021 at 05:12:11PM +0200, David Hildenbrand wrote:
> On 07.04.21 19:26, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > The struct pages representing a reserved memory region are initialized
> > using reserve_bootmem_range() function. This
From: Mike Rapoport
Hi,
These patches aim to remove CONFIG_HOLES_IN_ZONE and essentially hardwire
pfn_valid_within() to 1.
The idea is to mark NOMAP pages as reserved in the memory map and restore
the intended semantics of pfn_valid() to designate availability of struct
page for a pfn
From: Mike Rapoport
The intended semantics of pfn_valid() is to verify whether there is a
struct page for the pfn in question and nothing else.
Yet, on arm64 it is used to distinguish memory areas that are mapped in the
linear map vs those that require ioremap() to access them.
Introduce
From: Mike Rapoport
The struct pages representing a reserved memory region are initialized
using reserve_bootmem_range() function. This function is called for each
reserved region just before the memory is freed from memblock to the buddy
page allocator.
The struct pages for MEMBLOCK_NOMAP
From: Mike Rapoport
Add comment describing the semantics of pfn_valid() that clarifies that
pfn_valid() only checks for availability of a memory map entry (i.e. struct
page) for a PFN rather than availability of usable memory backing that PFN.
The most "generic" version of pfn_va
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