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powerpc/mm/keys: Move pte bits to correct headers 

Memory keys are supported only with hash translation mode. Instead of
using #ifdef in generic code move the key related pte bits to
respective headers

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V 2018-03-07 19:06:44 +05:30 committed by Michael Ellerman
parent 16b19f1a03
commit 1a2f778970
3 changed files with 15 additions and 19 deletions
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8
arch/powerpc/include/asm/book3s/64/hash-4k.h
View File

@ -34,6 +34,14 @@
#define H_PAGE_COMBO 0x0
#define H_PTE_FRAG_NR 0
#define H_PTE_FRAG_SIZE_SHIFT 0
/* memory key bits, only 8 keys supported */
#define H_PTE_PKEY_BIT0 0
#define H_PTE_PKEY_BIT1 0
#define H_PTE_PKEY_BIT2 _RPAGE_RSV3
#define H_PTE_PKEY_BIT3 _RPAGE_RSV4
#define H_PTE_PKEY_BIT4 _RPAGE_RSV5
/*
* On all 4K setups, remap_4k_pfn() equates to remap_pfn_range()
*/

7
arch/powerpc/include/asm/book3s/64/hash-64k.h
View File

@ -16,6 +16,13 @@
#define H_PAGE_BUSY _RPAGE_RPN44 /* software: PTE & hash are busy */
#define H_PAGE_HASHPTE _RPAGE_RPN43 /* PTE has associated HPTE */
/* memory key bits. */
#define H_PTE_PKEY_BIT0 _RPAGE_RSV1
#define H_PTE_PKEY_BIT1 _RPAGE_RSV2
#define H_PTE_PKEY_BIT2 _RPAGE_RSV3
#define H_PTE_PKEY_BIT3 _RPAGE_RSV4
#define H_PTE_PKEY_BIT4 _RPAGE_RSV5
/*
* We need to differentiate between explicit huge page and THP huge
* page, since THP huge page also need to track real subpage details

19
arch/powerpc/include/asm/book3s/64/pgtable.h
View File

@ -60,25 +60,6 @@
/* Max physical address bit as per radix table */
#define _RPAGE_PA_MAX 57
#ifdef CONFIG_PPC_MEM_KEYS
#ifdef CONFIG_PPC_64K_PAGES
#define H_PTE_PKEY_BIT0 _RPAGE_RSV1
#define H_PTE_PKEY_BIT1 _RPAGE_RSV2
#else /* CONFIG_PPC_64K_PAGES */
#define H_PTE_PKEY_BIT0 0 /* _RPAGE_RSV1 is not available */
#define H_PTE_PKEY_BIT1 0 /* _RPAGE_RSV2 is not available */
#endif /* CONFIG_PPC_64K_PAGES */
#define H_PTE_PKEY_BIT2 _RPAGE_RSV3
#define H_PTE_PKEY_BIT3 _RPAGE_RSV4
#define H_PTE_PKEY_BIT4 _RPAGE_RSV5
#else /* CONFIG_PPC_MEM_KEYS */
#define H_PTE_PKEY_BIT0 0
#define H_PTE_PKEY_BIT1 0
#define H_PTE_PKEY_BIT2 0
#define H_PTE_PKEY_BIT3 0
#define H_PTE_PKEY_BIT4 0
#endif /* CONFIG_PPC_MEM_KEYS */
/*
* Max physical address bit we will use for now.
*