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linux_dsm_epyc7002/arch/powerpc/include/asm/pgalloc.h

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powerpc: Trivially merge several headers from asm-ppc64 to asm-powerpc For these, I have just done the lame-o merge where the file ends up looking like: #ifndef CONFIG_PPC64 #include <asm-ppc/foo.h> #else ... contents from asm-ppc64/foo.h #endif so nothing has changed, really, except that we reduce include/asm-ppc64 a bit more. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-19 16:17:32 +07:00
#ifndef _ASM_POWERPC_PGALLOC_H
#define _ASM_POWERPC_PGALLOC_H
powerpc: Use RCU based pte freeing mechanism for all powerpc Refactor the RCU based pte free code that was used on ppc64 to be used on all powerpc. Additionally refactor pte_free() & pte_free_kernel() into common code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-11-19 19:50:04 +07:00
#include <linux/mm.h>
powerpc/mm/book(e)(3s)/64: Add page table accounting Introduce a helper pgtable_gfp_flags() which just returns the current gfp flags and adds __GFP_ACCOUNT to account for page table allocation. The generic helper is added to include/asm/pgalloc.h and has two variants - WARNING ugly bits ahead 1. If the header is included from a module, no check for mm == &init_mm is done, since init_mm is not exported 2. For kernel includes, the check is done and required see (3e79ec7 arch: x86: charge page tables to kmemcg) The fundamental assumption is that no module should be doing pgd/pud/pmd and pte alloc's on behalf of init_mm directly. NOTE: This adds an overhead to pmd/pud/pgd allocations similar to x86. The other alternative was to implement pmd_alloc_kernel/pud_alloc_kernel and pgd_alloc_kernel with their offset variants. For 4k page size, pte_alloc_one no longer calls pte_alloc_one_kernel. Signed-off-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-05-02 12:17:04 +07:00
#ifndef MODULE
static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp)
{
if (unlikely(mm == &init_mm))
return gfp;
return gfp | __GFP_ACCOUNT;
}
#else /* !MODULE */
static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp)
{
return gfp | __GFP_ACCOUNT;
}
#endif /* MODULE */
powerpc/mm/nohash: Move definition of PGALLOC_GFP to fix build errors In some obscure Book3E configs (randconfig) we can end up missing a definition for PGALLOC_GFP in pgtable_64.c. Fix it by moving the definition to asm/pgalloc.h. Fixes: de3b87611dd1 ("powerpc/mm/book(e)(3s)/64: Add page table accounting") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-15 17:02:56 +07:00
#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
powerpc/mm: Copy pgalloc (part 2) This moves the nohash variant of pgalloc headers to nohash/ directory Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-04-29 20:26:14 +07:00
#ifdef CONFIG_PPC_BOOK3S
#include <asm/book3s/pgalloc.h>
powerpc: Trivially merge several headers from asm-ppc64 to asm-powerpc For these, I have just done the lame-o merge where the file ends up looking like: #ifndef CONFIG_PPC64 #include <asm-ppc/foo.h> #else ... contents from asm-ppc64/foo.h #endif so nothing has changed, really, except that we reduce include/asm-ppc64 a bit more. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-19 16:17:32 +07:00
#else
powerpc/mm: Copy pgalloc (part 2) This moves the nohash variant of pgalloc headers to nohash/ directory Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-04-29 20:26:14 +07:00
#include <asm/nohash/pgalloc.h>
[PATCH] ppc64: support 64k pages Adds a new CONFIG_PPC_64K_PAGES which, when enabled, changes the kernel base page size to 64K. The resulting kernel still boots on any hardware. On current machines with 4K pages support only, the kernel will maintain 16 "subpages" for each 64K page transparently. Note that while real 64K capable HW has been tested, the current patch will not enable it yet as such hardware is not released yet, and I'm still verifying with the firmware architects the proper to get the information from the newer hypervisors. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:06:55 +07:00
#endif
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 05:20:36 +07:00
powerpc: Trivially merge several headers from asm-ppc64 to asm-powerpc For these, I have just done the lame-o merge where the file ends up looking like: #ifndef CONFIG_PPC64 #include <asm-ppc/foo.h> #else ... contents from asm-ppc64/foo.h #endif so nothing has changed, really, except that we reduce include/asm-ppc64 a bit more. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-19 16:17:32 +07:00
#endif /* _ASM_POWERPC_PGALLOC_H */
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