;s
special operation when ioremap_prot() and iounmap().
Signed-off-by: Baoquan He
Reviewed-by: Christoph Hellwig
Reviewed-by: Mike Rapoport (IBM)
Cc: Vineet Gupta
Cc: linux-snps-arc@lists.infradead.org
---
arch/arc/Kconfig | 1 +
arch/arc/include/asm/io.h | 7 +++---
arch/arc/mm/ioremap.
;s
special operation when ioremap_prot() and iounmap().
Signed-off-by: Baoquan He
Reviewed-by: Christoph Hellwig
Reviewed-by: Mike Rapoport (IBM)
Cc: Vineet Gupta
Cc: linux-snps-arc@lists.infradead.org
---
arch/arc/Kconfig | 1 +
arch/arc/include/asm/io.h | 7 +++---
arch/arc/mm/ioremap.
;s
special operation when ioremap_prot() and iounmap().
Signed-off-by: Baoquan He
Reviewed-by: Christoph Hellwig
Reviewed-by: Mike Rapoport (IBM)
Cc: Vineet Gupta
Cc: linux-snps-arc@lists.infradead.org
---
arch/arc/Kconfig | 1 +
arch/arc/include/asm/io.h | 7 +++---
arch/arc/mm/ioremap.
Hi Christoph,
On 05/16/23 at 11:31pm, Christoph Hellwig wrote:
> > +#define ioremap ioremap
> > +#define ioremap_prot ioremap_prot
> > +#define iounmap iounmap
>
> Nit: I think it's cleaner to have these #defines right next to the
> function declaration.
For this one, I didn't add function decl
On 05/16/23 at 11:31pm, Christoph Hellwig wrote:
> > +#define ioremap ioremap
> > +#define ioremap_prot ioremap_prot
> > +#define iounmap iounmap
>
> Nit: I think it's cleaner to have these #defines right next to the
> function declaration.
Makes sense, will do.
>
> Otherwise looks good:
>
>
;s
special operation when ioremap_prot() and iounmap().
Signed-off-by: Baoquan He
Cc: Vineet Gupta
Cc: linux-snps-arc@lists.infradead.org
---
arch/arc/Kconfig | 1 +
arch/arc/include/asm/io.h | 7 +++---
arch/arc/mm/ioremap.c | 49 ---
3 files
;s
special operation when ioremap_prot() and iounmap().
Signed-off-by: Baoquan He
Cc: Vineet Gupta
Cc: linux-snps-arc@lists.infradead.org
---
arch/arc/Kconfig | 1 +
arch/arc/include/asm/io.h | 7 +++---
arch/arc/mm/ioremap.c | 49 ---
3 files
;s
special operation when ioremap_prot() and iounmap().
Signed-off-by: Baoquan He
Cc: Vineet Gupta
Cc: linux-snps-arc@lists.infradead.org
Signed-off-by: Christophe Leroy
---
arch/arc/Kconfig | 1 +
arch/arc/include/asm/io.h | 7 +++---
arch/arc/mm/ioremap.
On 10/12/22 at 10:17am, Christophe Leroy wrote:
..
> > -/*
> > - * ioremap with access flags
> > - * Cache semantics wise it is same as ioremap - "forced" uncached.
> > - * However unlike vanilla ioremap which bypasses ARC MMU for addresses in
> > - * ARC hardware uncached region, this one stil
because arc has some special handling
in ioremap() than standard ioremap().
Signed-off-by: Baoquan He
Cc: Vineet Gupta
Cc: linux-snps-arc@lists.infradead.org
---
arch/arc/Kconfig | 1 +
arch/arc/include/asm/io.h | 19 +
arch/arc/mm/ior
Add hooks arch_ioremap() and arch_iounmap() for arc's special
operation when ioremap_prot() and iounmap(). Meanwhile define and
implement arc's own ioremap() because arc has some special handling
in ioremap() than standard ioremap().
Signed-off-by: Baoquan He
Cc: Vineet Gupta
Cc: linu
Add hooks ioremap_allowed() and iounmap_allowed() for arc's special
operation when ioremap_prot() and iounmap(). Meanwhile define and
implement arc's own ioremap() because arc has some special handling
in ioremap() than standard ioremap().
Signed-off-by: Baoquan He
Cc: Vineet Gupta
On 04/23/20 at 08:55am, Mike Rapoport wrote:
> On Thu, Apr 23, 2020 at 10:57:20AM +0800, Baoquan He wrote:
> > On 04/23/20 at 10:53am, Baoquan He wrote:
> > > On 04/12/20 at 10:48pm, Mike Rapoport wrote:
> > > > From: Mike Rapoport
> > > >
>
On 04/12/20 at 10:48pm, Mike Rapoport wrote:
> From: Mike Rapoport
>
> The free_area_init_node() is only used by x86 to initialize a memory-less
> nodes.
> Make its name reflect this and drop all the function parameters except node
> ID as they are anyway zero.
>
> Signed-off-by: Mike Rapoport
On 04/23/20 at 10:53am, Baoquan He wrote:
> On 04/12/20 at 10:48pm, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > Some architectures (e.g. ARC) have the ZONE_HIGHMEM zone below the
> > ZONE_NORMAL. Allowing free_area_init() parse max_zone_pfn array even it
On 04/12/20 at 10:48pm, Mike Rapoport wrote:
> From: Mike Rapoport
>
> Some architectures (e.g. ARC) have the ZONE_HIGHMEM zone below the
> ZONE_NORMAL. Allowing free_area_init() parse max_zone_pfn array even it is
> sorted in descending order allows using free_area_init() on such
> architectures
y_pfnnid_cache);
> - if (nid >= 0 && nid != node)
> - return false;
> - return true;
> -}
> -
> -#else
> -static inline bool __meminit early_pfn_in_nid(unsigned long pfn, int node)
> -{
> - return true;
> -}
> -#endif
And macro early_pfn_valid() is not
lise all pg_data_t and zone data
> * @max_zone_pfn: an array of max PFNs for each zone
> *
> * This will call free_area_init_node() for each active node in the system.
It's __free_area_init_node() here being called, while
it dosn't matter much because it's
lude/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -2272,7 +2272,7 @@ static inline spinlock_t *pud_lock(struct mm_struct
> *mm, pud_t *pud)
> }
>
> extern void __init pagecache_init(void);
> -extern void free_area_init(unsigned long * zones_size);
> +extern void free_area_
On 04/21/20 at 12:09pm, Mike Rapoport wrote:
> > > diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
> > > index fc0aad0bc1f5..e67dc501576a 100644
> > > --- a/mm/memory_hotplug.c
> > > +++ b/mm/memory_hotplug.c
> > > @@ -1372,11 +1372,7 @@ check_pages_isolated_cb(unsigned long start_pfn,
> >
On 04/21/20 at 11:49am, Mike Rapoport wrote:
> On Tue, Apr 21, 2020 at 10:24:35AM +0800, Baoquan He wrote:
> > On 04/12/20 at 10:48pm, Mike Rapoport wrote:
> > > From: Mike Rapoport
> > >
> > > The early_pfn_to_nid() and it's helper __early_pfn_to_nid() a
On 04/12/20 at 10:48pm, Mike Rapoport wrote:
> From: Mike Rapoport
>
> The CONFIG_HAVE_MEMBLOCK_NODE_MAP is used to differentiate initialization
> of nodes and zones structures between the systems that have region to node
> mapping in memblock and those that don't.
>
> Currently all the NUMA arc
On 04/12/20 at 10:48pm, Mike Rapoport wrote:
> From: Mike Rapoport
>
> The early_pfn_to_nid() and it's helper __early_pfn_to_nid() are spread
> around include/linux/mm.h, include/linux/mmzone.h and mm/page_alloc.c.
>
> Drop unused stub for __early_pfn_to_nid() and move its actual generic
> imple
ARLY_PFN_TO_NID) || \
defined(CONFIG_HAVE_MEMBLOCK_NODE_MAP)
This is the upper layer of ifdeffery scope.
>
> static struct mminit_pfnnid_cache early_pfnnid_cache __meminitdata;
>
> +#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
Moving __early_pfn_to_nid() here makes the upper layer of ifdefer
ck_is_hotpluggable(r))
> continue;
>
> - nid = r->nid;
> + nid = memblock_get_region_node(r);
>
> usable_startpfn = PFN_DOWN(r->base);
> zone_movable_pfn[nid] = zone_movable_pfn[nid] ?
> @@
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