+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_POWERPC_MMU_40X_H_
-#define _ASM_POWERPC_MMU_40X_H_
-
-/*
- * PPC40x support
- */
-
-#define PPC40X_TLB_SIZE 64
-
-/*
- * TLB entries are defined by a "high" tag portion and a "low" data
- * portion. On all architectures, the data portion is 32-bits.
- *
- * TLB entries are managed entirely under software control by reading,
- * writing, and searchoing using the 4xx-specific tlbre, tlbwr, and tlbsx
- * instructions.
- */
-
-#define TLB_LO 1
-#define TLB_HI 0
-
-#define TLB_DATA TLB_LO
-#define TLB_TAG TLB_HI
-
-/* Tag portion */
-
-#define TLB_EPN_MASK 0xFFFFFC00 /* Effective Page Number */
-#define TLB_PAGESZ_MASK 0x00000380
-#define TLB_PAGESZ(x) (((x) & 0x7) << 7)
-#define PAGESZ_1K 0
-#define PAGESZ_4K 1
-#define PAGESZ_16K 2
-#define PAGESZ_64K 3
-#define PAGESZ_256K 4
-#define PAGESZ_1M 5
-#define PAGESZ_4M 6
-#define PAGESZ_16M 7
-#define TLB_VALID 0x00000040 /* Entry is valid */
-
-/* Data portion */
-
-#define TLB_RPN_MASK 0xFFFFFC00 /* Real Page Number */
-#define TLB_PERM_MASK 0x00000300
-#define TLB_EX 0x00000200 /* Instruction execution allowed */
-#define TLB_WR 0x00000100 /* Writes permitted */
-#define TLB_ZSEL_MASK 0x000000F0
-#define TLB_ZSEL(x) (((x) & 0xF) << 4)
-#define TLB_ATTR_MASK 0x0000000F
-#define TLB_W 0x00000008 /* Caching is write-through */
-#define TLB_I 0x00000004 /* Caching is inhibited */
-#define TLB_M 0x00000002 /* Memory is coherent */
-#define TLB_G 0x00000001 /* Memory is guarded from prefetch */
-
-#ifndef __ASSEMBLY__
-
-typedef struct {
- unsigned int id;
- unsigned int active;
- unsigned long vdso_base;
-} mm_context_t;
-
-#endif /* !__ASSEMBLY__ */
-
-#define mmu_virtual_psize MMU_PAGE_4K
-#define mmu_linear_psize MMU_PAGE_256M
-
-#endif /* _ASM_POWERPC_MMU_40X_H_ */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_POWERPC_MMU_44X_H_
-#define _ASM_POWERPC_MMU_44X_H_
-/*
- * PPC440 support
- */
-
-#include <asm/asm-const.h>
-
-#define PPC44x_MMUCR_TID 0x000000ff
-#define PPC44x_MMUCR_STS 0x00010000
-
-#define PPC44x_TLB_PAGEID 0
-#define PPC44x_TLB_XLAT 1
-#define PPC44x_TLB_ATTRIB 2
-
-/* Page identification fields */
-#define PPC44x_TLB_EPN_MASK 0xfffffc00 /* Effective Page Number */
-#define PPC44x_TLB_VALID 0x00000200 /* Valid flag */
-#define PPC44x_TLB_TS 0x00000100 /* Translation address space */
-#define PPC44x_TLB_1K 0x00000000 /* Page sizes */
-#define PPC44x_TLB_4K 0x00000010
-#define PPC44x_TLB_16K 0x00000020
-#define PPC44x_TLB_64K 0x00000030
-#define PPC44x_TLB_256K 0x00000040
-#define PPC44x_TLB_1M 0x00000050
-#define PPC44x_TLB_16M 0x00000070
-#define PPC44x_TLB_256M 0x00000090
-
-/* Translation fields */
-#define PPC44x_TLB_RPN_MASK 0xfffffc00 /* Real Page Number */
-#define PPC44x_TLB_ERPN_MASK 0x0000000f
-
-/* Storage attribute and access control fields */
-#define PPC44x_TLB_ATTR_MASK 0x0000ff80
-#define PPC44x_TLB_U0 0x00008000 /* User 0 */
-#define PPC44x_TLB_U1 0x00004000 /* User 1 */
-#define PPC44x_TLB_U2 0x00002000 /* User 2 */
-#define PPC44x_TLB_U3 0x00001000 /* User 3 */
-#define PPC44x_TLB_W 0x00000800 /* Caching is write-through */
-#define PPC44x_TLB_I 0x00000400 /* Caching is inhibited */
-#define PPC44x_TLB_M 0x00000200 /* Memory is coherent */
-#define PPC44x_TLB_G 0x00000100 /* Memory is guarded */
-#define PPC44x_TLB_E 0x00000080 /* Memory is little endian */
-
-#define PPC44x_TLB_PERM_MASK 0x0000003f
-#define PPC44x_TLB_UX 0x00000020 /* User execution */
-#define PPC44x_TLB_UW 0x00000010 /* User write */
-#define PPC44x_TLB_UR 0x00000008 /* User read */
-#define PPC44x_TLB_SX 0x00000004 /* Super execution */
-#define PPC44x_TLB_SW 0x00000002 /* Super write */
-#define PPC44x_TLB_SR 0x00000001 /* Super read */
-
-/* Number of TLB entries */
-#define PPC44x_TLB_SIZE 64
-
-/* 47x bits */
-#define PPC47x_MMUCR_TID 0x0000ffff
-#define PPC47x_MMUCR_STS 0x00010000
-
-/* Page identification fields */
-#define PPC47x_TLB0_EPN_MASK 0xfffff000 /* Effective Page Number */
-#define PPC47x_TLB0_VALID 0x00000800 /* Valid flag */
-#define PPC47x_TLB0_TS 0x00000400 /* Translation address space */
-#define PPC47x_TLB0_4K 0x00000000
-#define PPC47x_TLB0_16K 0x00000010
-#define PPC47x_TLB0_64K 0x00000030
-#define PPC47x_TLB0_1M 0x00000070
-#define PPC47x_TLB0_16M 0x000000f0
-#define PPC47x_TLB0_256M 0x000001f0
-#define PPC47x_TLB0_1G 0x000003f0
-#define PPC47x_TLB0_BOLTED_R 0x00000008 /* tlbre only */
-
-/* Translation fields */
-#define PPC47x_TLB1_RPN_MASK 0xfffff000 /* Real Page Number */
-#define PPC47x_TLB1_ERPN_MASK 0x000003ff
-
-/* Storage attribute and access control fields */
-#define PPC47x_TLB2_ATTR_MASK 0x0003ff80
-#define PPC47x_TLB2_IL1I 0x00020000 /* Memory is guarded */
-#define PPC47x_TLB2_IL1D 0x00010000 /* Memory is guarded */
-#define PPC47x_TLB2_U0 0x00008000 /* User 0 */
-#define PPC47x_TLB2_U1 0x00004000 /* User 1 */
-#define PPC47x_TLB2_U2 0x00002000 /* User 2 */
-#define PPC47x_TLB2_U3 0x00001000 /* User 3 */
-#define PPC47x_TLB2_W 0x00000800 /* Caching is write-through */
-#define PPC47x_TLB2_I 0x00000400 /* Caching is inhibited */
-#define PPC47x_TLB2_M 0x00000200 /* Memory is coherent */
-#define PPC47x_TLB2_G 0x00000100 /* Memory is guarded */
-#define PPC47x_TLB2_E 0x00000080 /* Memory is little endian */
-#define PPC47x_TLB2_PERM_MASK 0x0000003f
-#define PPC47x_TLB2_UX 0x00000020 /* User execution */
-#define PPC47x_TLB2_UW 0x00000010 /* User write */
-#define PPC47x_TLB2_UR 0x00000008 /* User read */
-#define PPC47x_TLB2_SX 0x00000004 /* Super execution */
-#define PPC47x_TLB2_SW 0x00000002 /* Super write */
-#define PPC47x_TLB2_SR 0x00000001 /* Super read */
-#define PPC47x_TLB2_U_RWX (PPC47x_TLB2_UX|PPC47x_TLB2_UW|PPC47x_TLB2_UR)
-#define PPC47x_TLB2_S_RWX (PPC47x_TLB2_SX|PPC47x_TLB2_SW|PPC47x_TLB2_SR)
-#define PPC47x_TLB2_S_RW (PPC47x_TLB2_SW | PPC47x_TLB2_SR)
-#define PPC47x_TLB2_IMG (PPC47x_TLB2_I | PPC47x_TLB2_M | PPC47x_TLB2_G)
-
-#ifndef __ASSEMBLY__
-
-extern unsigned int tlb_44x_hwater;
-extern unsigned int tlb_44x_index;
-
-typedef struct {
- unsigned int id;
- unsigned int active;
- unsigned long vdso_base;
-} mm_context_t;
-
-#endif /* !__ASSEMBLY__ */
-
-#ifndef CONFIG_PPC_EARLY_DEBUG_44x
-#define PPC44x_EARLY_TLBS 1
-#else
-#define PPC44x_EARLY_TLBS 2
-#define PPC44x_EARLY_DEBUG_VIRTADDR (ASM_CONST(0xf0000000) \
- | (ASM_CONST(CONFIG_PPC_EARLY_DEBUG_44x_PHYSLOW) & 0xffff))
-#endif
-
-/* Size of the TLBs used for pinning in lowmem */
-#define PPC_PIN_SIZE (1 << 28) /* 256M */
-
-#if defined(CONFIG_PPC_4K_PAGES)
-#define PPC44x_TLBE_SIZE PPC44x_TLB_4K
-#define PPC47x_TLBE_SIZE PPC47x_TLB0_4K
-#define mmu_virtual_psize MMU_PAGE_4K
-#elif defined(CONFIG_PPC_16K_PAGES)
-#define PPC44x_TLBE_SIZE PPC44x_TLB_16K
-#define PPC47x_TLBE_SIZE PPC47x_TLB0_16K
-#define mmu_virtual_psize MMU_PAGE_16K
-#elif defined(CONFIG_PPC_64K_PAGES)
-#define PPC44x_TLBE_SIZE PPC44x_TLB_64K
-#define PPC47x_TLBE_SIZE PPC47x_TLB0_64K
-#define mmu_virtual_psize MMU_PAGE_64K
-#elif defined(CONFIG_PPC_256K_PAGES)
-#define PPC44x_TLBE_SIZE PPC44x_TLB_256K
-#define mmu_virtual_psize MMU_PAGE_256K
-#else
-#error "Unsupported PAGE_SIZE"
-#endif
-
-#define mmu_linear_psize MMU_PAGE_256M
-
-#define PPC44x_PGD_OFF_SHIFT (32 - PGDIR_SHIFT + PGD_T_LOG2)
-#define PPC44x_PGD_OFF_MASK_BIT (PGDIR_SHIFT - PGD_T_LOG2)
-#define PPC44x_PTE_ADD_SHIFT (32 - PGDIR_SHIFT + PTE_SHIFT + PTE_T_LOG2)
-#define PPC44x_PTE_ADD_MASK_BIT (32 - PTE_T_LOG2 - PTE_SHIFT)
-
-#endif /* _ASM_POWERPC_MMU_44X_H_ */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_POWERPC_MMU_8XX_H_
-#define _ASM_POWERPC_MMU_8XX_H_
-/*
- * PPC8xx support
- */
-
-/* Control/status registers for the MPC8xx.
- * A write operation to these registers causes serialized access.
- * During software tablewalk, the registers used perform mask/shift-add
- * operations when written/read. A TLB entry is created when the Mx_RPN
- * is written, and the contents of several registers are used to
- * create the entry.
- */
-#define SPRN_MI_CTR 784 /* Instruction TLB control register */
-#define MI_GPM 0x80000000 /* Set domain manager mode */
-#define MI_PPM 0x40000000 /* Set subpage protection */
-#define MI_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */
-#define MI_RSV4I 0x08000000 /* Reserve 4 TLB entries */
-#define MI_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
-#define MI_IDXMASK 0x00001f00 /* TLB index to be loaded */
-#define MI_RESETVAL 0x00000000 /* Value of register at reset */
-
-/* These are the Ks and Kp from the PowerPC books. For proper operation,
- * Ks = 0, Kp = 1.
- */
-#define SPRN_MI_AP 786
-#define MI_Ks 0x80000000 /* Should not be set */
-#define MI_Kp 0x40000000 /* Should always be set */
-
-/*
- * All pages' PP data bits are set to either 001 or 011 by copying _PAGE_EXEC
- * into bit 21 in the ITLBmiss handler (bit 21 is the middle bit), which means
- * respectively NA for All or X for Supervisor and no access for User.
- * Then we use the APG to say whether accesses are according to Page rules or
- * "all Supervisor" rules (Access to all)
- * Therefore, we define 2 APG groups. lsb is _PMD_USER
- * 0 => No user => 01 (all accesses performed according to page definition)
- * 1 => User => 00 (all accesses performed as supervisor iaw page definition)
- * We define all 16 groups so that all other bits of APG can take any value
- */
-#define MI_APG_INIT 0x44444444
-
-/* The effective page number register. When read, contains the information
- * about the last instruction TLB miss. When MI_RPN is written, bits in
- * this register are used to create the TLB entry.
- */
-#define SPRN_MI_EPN 787
-#define MI_EPNMASK 0xfffff000 /* Effective page number for entry */
-#define MI_EVALID 0x00000200 /* Entry is valid */
-#define MI_ASIDMASK 0x0000000f /* ASID match value */
- /* Reset value is undefined */
-
-/* A "level 1" or "segment" or whatever you want to call it register.
- * For the instruction TLB, it contains bits that get loaded into the
- * TLB entry when the MI_RPN is written.
- */
-#define SPRN_MI_TWC 789
-#define MI_APG 0x000001e0 /* Access protection group (0) */
-#define MI_GUARDED 0x00000010 /* Guarded storage */
-#define MI_PSMASK 0x0000000c /* Mask of page size bits */
-#define MI_PS8MEG 0x0000000c /* 8M page size */
-#define MI_PS512K 0x00000004 /* 512K page size */
-#define MI_PS4K_16K 0x00000000 /* 4K or 16K page size */
-#define MI_SVALID 0x00000001 /* Segment entry is valid */
- /* Reset value is undefined */
-
-/* Real page number. Defined by the pte. Writing this register
- * causes a TLB entry to be created for the instruction TLB, using
- * additional information from the MI_EPN, and MI_TWC registers.
- */
-#define SPRN_MI_RPN 790
-#define MI_SPS16K 0x00000008 /* Small page size (0 = 4k, 1 = 16k) */
-
-/* Define an RPN value for mapping kernel memory to large virtual
- * pages for boot initialization. This has real page number of 0,
- * large page size, shared page, cache enabled, and valid.
- * Also mark all subpages valid and write access.
- */
-#define MI_BOOTINIT 0x000001fd
-
-#define SPRN_MD_CTR 792 /* Data TLB control register */
-#define MD_GPM 0x80000000 /* Set domain manager mode */
-#define MD_PPM 0x40000000 /* Set subpage protection */
-#define MD_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */
-#define MD_WTDEF 0x10000000 /* Set writethrough when MMU dis */
-#define MD_RSV4I 0x08000000 /* Reserve 4 TLB entries */
-#define MD_TWAM 0x04000000 /* Use 4K page hardware assist */
-#define MD_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
-#define MD_IDXMASK 0x00001f00 /* TLB index to be loaded */
-#define MD_RESETVAL 0x04000000 /* Value of register at reset */
-
-#define SPRN_M_CASID 793 /* Address space ID (context) to match */
-#define MC_ASIDMASK 0x0000000f /* Bits used for ASID value */
-
-
-/* These are the Ks and Kp from the PowerPC books. For proper operation,
- * Ks = 0, Kp = 1.
- */
-#define SPRN_MD_AP 794
-#define MD_Ks 0x80000000 /* Should not be set */
-#define MD_Kp 0x40000000 /* Should always be set */
-
-/*
- * All pages' PP data bits are set to either 000 or 011 or 001, which means
- * respectively RW for Supervisor and no access for User, or RO for
- * Supervisor and no access for user and NA for ALL.
- * Then we use the APG to say whether accesses are according to Page rules or
- * "all Supervisor" rules (Access to all)
- * Therefore, we define 2 APG groups. lsb is _PMD_USER
- * 0 => No user => 01 (all accesses performed according to page definition)
- * 1 => User => 00 (all accesses performed as supervisor iaw page definition)
- * We define all 16 groups so that all other bits of APG can take any value
- */
-#define MD_APG_INIT 0x44444444
-
-/* The effective page number register. When read, contains the information
- * about the last instruction TLB miss. When MD_RPN is written, bits in
- * this register are used to create the TLB entry.
- */
-#define SPRN_MD_EPN 795
-#define MD_EPNMASK 0xfffff000 /* Effective page number for entry */
-#define MD_EVALID 0x00000200 /* Entry is valid */
-#define MD_ASIDMASK 0x0000000f /* ASID match value */
- /* Reset value is undefined */
-
-/* The pointer to the base address of the first level page table.
- * During a software tablewalk, reading this register provides the address
- * of the entry associated with MD_EPN.
- */
-#define SPRN_M_TWB 796
-#define M_L1TB 0xfffff000 /* Level 1 table base address */
-#define M_L1INDX 0x00000ffc /* Level 1 index, when read */
- /* Reset value is undefined */
-
-/* A "level 1" or "segment" or whatever you want to call it register.
- * For the data TLB, it contains bits that get loaded into the TLB entry
- * when the MD_RPN is written. It is also provides the hardware assist
- * for finding the PTE address during software tablewalk.
- */
-#define SPRN_MD_TWC 797
-#define MD_L2TB 0xfffff000 /* Level 2 table base address */
-#define MD_L2INDX 0xfffffe00 /* Level 2 index (*pte), when read */
-#define MD_APG 0x000001e0 /* Access protection group (0) */
-#define MD_GUARDED 0x00000010 /* Guarded storage */
-#define MD_PSMASK 0x0000000c /* Mask of page size bits */
-#define MD_PS8MEG 0x0000000c /* 8M page size */
-#define MD_PS512K 0x00000004 /* 512K page size */
-#define MD_PS4K_16K 0x00000000 /* 4K or 16K page size */
-#define MD_WT 0x00000002 /* Use writethrough page attribute */
-#define MD_SVALID 0x00000001 /* Segment entry is valid */
- /* Reset value is undefined */
-
-
-/* Real page number. Defined by the pte. Writing this register
- * causes a TLB entry to be created for the data TLB, using
- * additional information from the MD_EPN, and MD_TWC registers.
- */
-#define SPRN_MD_RPN 798
-#define MD_SPS16K 0x00000008 /* Small page size (0 = 4k, 1 = 16k) */
-
-/* This is a temporary storage register that could be used to save
- * a processor working register during a tablewalk.
- */
-#define SPRN_M_TW 799
-
-#ifdef CONFIG_PPC_MM_SLICES
-#include <asm/nohash/32/slice.h>
-#define SLICE_ARRAY_SIZE (1 << (32 - SLICE_LOW_SHIFT - 1))
-#endif
-
-#ifndef __ASSEMBLY__
-struct slice_mask {
- u64 low_slices;
- DECLARE_BITMAP(high_slices, 0);
-};
-
-typedef struct {
- unsigned int id;
- unsigned int active;
- unsigned long vdso_base;
-#ifdef CONFIG_PPC_MM_SLICES
- u16 user_psize; /* page size index */
- unsigned char low_slices_psize[SLICE_ARRAY_SIZE];
- unsigned char high_slices_psize[0];
- unsigned long slb_addr_limit;
- struct slice_mask mask_base_psize; /* 4k or 16k */
-# ifdef CONFIG_HUGETLB_PAGE
- struct slice_mask mask_512k;
- struct slice_mask mask_8m;
-# endif
-#endif
-} mm_context_t;
-
-#define PHYS_IMMR_BASE (mfspr(SPRN_IMMR) & 0xfff80000)
-#define VIRT_IMMR_BASE (__fix_to_virt(FIX_IMMR_BASE))
-
-/* Page size definitions, common between 32 and 64-bit
- *
- * shift : is the "PAGE_SHIFT" value for that page size
- * penc : is the pte encoding mask
- *
- */
-struct mmu_psize_def {
- unsigned int shift; /* number of bits */
- unsigned int enc; /* PTE encoding */
- unsigned int ind; /* Corresponding indirect page size shift */
- unsigned int flags;
-#define MMU_PAGE_SIZE_DIRECT 0x1 /* Supported as a direct size */
-#define MMU_PAGE_SIZE_INDIRECT 0x2 /* Supported as an indirect size */
-};
-
-extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
-
-static inline int shift_to_mmu_psize(unsigned int shift)
-{
- int psize;
-
- for (psize = 0; psize < MMU_PAGE_COUNT; ++psize)
- if (mmu_psize_defs[psize].shift == shift)
- return psize;
- return -1;
-}
-
-static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
-{
- if (mmu_psize_defs[mmu_psize].shift)
- return mmu_psize_defs[mmu_psize].shift;
- BUG();
-}
-
-/* patch sites */
-extern s32 patch__itlbmiss_linmem_top;
-extern s32 patch__dtlbmiss_linmem_top, patch__dtlbmiss_immr_jmp;
-extern s32 patch__fixupdar_linmem_top;
-
-extern s32 patch__itlbmiss_exit_1, patch__itlbmiss_exit_2;
-extern s32 patch__dtlbmiss_exit_1, patch__dtlbmiss_exit_2, patch__dtlbmiss_exit_3;
-extern s32 patch__itlbmiss_perf, patch__dtlbmiss_perf;
-
-#endif /* !__ASSEMBLY__ */
-
-#if defined(CONFIG_PPC_4K_PAGES)
-#define mmu_virtual_psize MMU_PAGE_4K
-#elif defined(CONFIG_PPC_16K_PAGES)
-#define mmu_virtual_psize MMU_PAGE_16K
-#else
-#error "Unsupported PAGE_SIZE"
-#endif
-
-#define mmu_linear_psize MMU_PAGE_8M
-
-#endif /* _ASM_POWERPC_MMU_8XX_H_ */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_POWERPC_MMU_BOOK3E_H_
-#define _ASM_POWERPC_MMU_BOOK3E_H_
-/*
- * Freescale Book-E/Book-3e (ISA 2.06+) MMU support
- */
-
-/* Book-3e defined page sizes */
-#define BOOK3E_PAGESZ_1K 0
-#define BOOK3E_PAGESZ_2K 1
-#define BOOK3E_PAGESZ_4K 2
-#define BOOK3E_PAGESZ_8K 3
-#define BOOK3E_PAGESZ_16K 4
-#define BOOK3E_PAGESZ_32K 5
-#define BOOK3E_PAGESZ_64K 6
-#define BOOK3E_PAGESZ_128K 7
-#define BOOK3E_PAGESZ_256K 8
-#define BOOK3E_PAGESZ_512K 9
-#define BOOK3E_PAGESZ_1M 10
-#define BOOK3E_PAGESZ_2M 11
-#define BOOK3E_PAGESZ_4M 12
-#define BOOK3E_PAGESZ_8M 13
-#define BOOK3E_PAGESZ_16M 14
-#define BOOK3E_PAGESZ_32M 15
-#define BOOK3E_PAGESZ_64M 16
-#define BOOK3E_PAGESZ_128M 17
-#define BOOK3E_PAGESZ_256M 18
-#define BOOK3E_PAGESZ_512M 19
-#define BOOK3E_PAGESZ_1GB 20
-#define BOOK3E_PAGESZ_2GB 21
-#define BOOK3E_PAGESZ_4GB 22
-#define BOOK3E_PAGESZ_8GB 23
-#define BOOK3E_PAGESZ_16GB 24
-#define BOOK3E_PAGESZ_32GB 25
-#define BOOK3E_PAGESZ_64GB 26
-#define BOOK3E_PAGESZ_128GB 27
-#define BOOK3E_PAGESZ_256GB 28
-#define BOOK3E_PAGESZ_512GB 29
-#define BOOK3E_PAGESZ_1TB 30
-#define BOOK3E_PAGESZ_2TB 31
-
-/* MAS registers bit definitions */
-
-#define MAS0_TLBSEL_MASK 0x30000000
-#define MAS0_TLBSEL_SHIFT 28
-#define MAS0_TLBSEL(x) (((x) << MAS0_TLBSEL_SHIFT) & MAS0_TLBSEL_MASK)
-#define MAS0_GET_TLBSEL(mas0) (((mas0) & MAS0_TLBSEL_MASK) >> \
- MAS0_TLBSEL_SHIFT)
-#define MAS0_ESEL_MASK 0x0FFF0000
-#define MAS0_ESEL_SHIFT 16
-#define MAS0_ESEL(x) (((x) << MAS0_ESEL_SHIFT) & MAS0_ESEL_MASK)
-#define MAS0_NV(x) ((x) & 0x00000FFF)
-#define MAS0_HES 0x00004000
-#define MAS0_WQ_ALLWAYS 0x00000000
-#define MAS0_WQ_COND 0x00001000
-#define MAS0_WQ_CLR_RSRV 0x00002000
-
-#define MAS1_VALID 0x80000000
-#define MAS1_IPROT 0x40000000
-#define MAS1_TID(x) (((x) << 16) & 0x3FFF0000)
-#define MAS1_IND 0x00002000
-#define MAS1_TS 0x00001000
-#define MAS1_TSIZE_MASK 0x00000f80
-#define MAS1_TSIZE_SHIFT 7
-#define MAS1_TSIZE(x) (((x) << MAS1_TSIZE_SHIFT) & MAS1_TSIZE_MASK)
-#define MAS1_GET_TSIZE(mas1) (((mas1) & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT)
-
-#define MAS2_EPN (~0xFFFUL)
-#define MAS2_X0 0x00000040
-#define MAS2_X1 0x00000020
-#define MAS2_W 0x00000010
-#define MAS2_I 0x00000008
-#define MAS2_M 0x00000004
-#define MAS2_G 0x00000002
-#define MAS2_E 0x00000001
-#define MAS2_WIMGE_MASK 0x0000001f
-#define MAS2_EPN_MASK(size) (~0 << (size + 10))
-#define MAS2_VAL(addr, size, flags) ((addr) & MAS2_EPN_MASK(size) | (flags))
-
-#define MAS3_RPN 0xFFFFF000
-#define MAS3_U0 0x00000200
-#define MAS3_U1 0x00000100
-#define MAS3_U2 0x00000080
-#define MAS3_U3 0x00000040
-#define MAS3_UX 0x00000020
-#define MAS3_SX 0x00000010
-#define MAS3_UW 0x00000008
-#define MAS3_SW 0x00000004
-#define MAS3_UR 0x00000002
-#define MAS3_SR 0x00000001
-#define MAS3_BAP_MASK 0x0000003f
-#define MAS3_SPSIZE 0x0000003e
-#define MAS3_SPSIZE_SHIFT 1
-
-#define MAS4_TLBSEL_MASK MAS0_TLBSEL_MASK
-#define MAS4_TLBSELD(x) MAS0_TLBSEL(x)
-#define MAS4_INDD 0x00008000 /* Default IND */
-#define MAS4_TSIZED(x) MAS1_TSIZE(x)
-#define MAS4_X0D 0x00000040
-#define MAS4_X1D 0x00000020
-#define MAS4_WD 0x00000010
-#define MAS4_ID 0x00000008
-#define MAS4_MD 0x00000004
-#define MAS4_GD 0x00000002
-#define MAS4_ED 0x00000001
-#define MAS4_WIMGED_MASK 0x0000001f /* Default WIMGE */
-#define MAS4_WIMGED_SHIFT 0
-#define MAS4_VLED MAS4_X1D /* Default VLE */
-#define MAS4_ACMD 0x000000c0 /* Default ACM */
-#define MAS4_ACMD_SHIFT 6
-#define MAS4_TSIZED_MASK 0x00000f80 /* Default TSIZE */
-#define MAS4_TSIZED_SHIFT 7
-
-#define MAS5_SGS 0x80000000
-
-#define MAS6_SPID0 0x3FFF0000
-#define MAS6_SPID1 0x00007FFE
-#define MAS6_ISIZE(x) MAS1_TSIZE(x)
-#define MAS6_SAS 0x00000001
-#define MAS6_SPID MAS6_SPID0
-#define MAS6_SIND 0x00000002 /* Indirect page */
-#define MAS6_SIND_SHIFT 1
-#define MAS6_SPID_MASK 0x3fff0000
-#define MAS6_SPID_SHIFT 16
-#define MAS6_ISIZE_MASK 0x00000f80
-#define MAS6_ISIZE_SHIFT 7
-
-#define MAS7_RPN 0xFFFFFFFF
-
-#define MAS8_TGS 0x80000000 /* Guest space */
-#define MAS8_VF 0x40000000 /* Virtualization Fault */
-#define MAS8_TLPID 0x000000ff
-
-/* Bit definitions for MMUCFG */
-#define MMUCFG_MAVN 0x00000003 /* MMU Architecture Version Number */
-#define MMUCFG_MAVN_V1 0x00000000 /* v1.0 */
-#define MMUCFG_MAVN_V2 0x00000001 /* v2.0 */
-#define MMUCFG_NTLBS 0x0000000c /* Number of TLBs */
-#define MMUCFG_PIDSIZE 0x000007c0 /* PID Reg Size */
-#define MMUCFG_TWC 0x00008000 /* TLB Write Conditional (v2.0) */
-#define MMUCFG_LRAT 0x00010000 /* LRAT Supported (v2.0) */
-#define MMUCFG_RASIZE 0x00fe0000 /* Real Addr Size */
-#define MMUCFG_LPIDSIZE 0x0f000000 /* LPID Reg Size */
-
-/* Bit definitions for MMUCSR0 */
-#define MMUCSR0_TLB1FI 0x00000002 /* TLB1 Flash invalidate */
-#define MMUCSR0_TLB0FI 0x00000004 /* TLB0 Flash invalidate */
-#define MMUCSR0_TLB2FI 0x00000040 /* TLB2 Flash invalidate */
-#define MMUCSR0_TLB3FI 0x00000020 /* TLB3 Flash invalidate */
-#define MMUCSR0_TLBFI (MMUCSR0_TLB0FI | MMUCSR0_TLB1FI | \
- MMUCSR0_TLB2FI | MMUCSR0_TLB3FI)
-#define MMUCSR0_TLB0PS 0x00000780 /* TLB0 Page Size */
-#define MMUCSR0_TLB1PS 0x00007800 /* TLB1 Page Size */
-#define MMUCSR0_TLB2PS 0x00078000 /* TLB2 Page Size */
-#define MMUCSR0_TLB3PS 0x00780000 /* TLB3 Page Size */
-
-/* MMUCFG bits */
-#define MMUCFG_MAVN_NASK 0x00000003
-#define MMUCFG_MAVN_V1_0 0x00000000
-#define MMUCFG_MAVN_V2_0 0x00000001
-#define MMUCFG_NTLB_MASK 0x0000000c
-#define MMUCFG_NTLB_SHIFT 2
-#define MMUCFG_PIDSIZE_MASK 0x000007c0
-#define MMUCFG_PIDSIZE_SHIFT 6
-#define MMUCFG_TWC 0x00008000
-#define MMUCFG_LRAT 0x00010000
-#define MMUCFG_RASIZE_MASK 0x00fe0000
-#define MMUCFG_RASIZE_SHIFT 17
-#define MMUCFG_LPIDSIZE_MASK 0x0f000000
-#define MMUCFG_LPIDSIZE_SHIFT 24
-
-/* TLBnCFG encoding */
-#define TLBnCFG_N_ENTRY 0x00000fff /* number of entries */
-#define TLBnCFG_HES 0x00002000 /* HW select supported */
-#define TLBnCFG_IPROT 0x00008000 /* IPROT supported */
-#define TLBnCFG_GTWE 0x00010000 /* Guest can write */
-#define TLBnCFG_IND 0x00020000 /* IND entries supported */
-#define TLBnCFG_PT 0x00040000 /* Can load from page table */
-#define TLBnCFG_MINSIZE 0x00f00000 /* Minimum Page Size (v1.0) */
-#define TLBnCFG_MINSIZE_SHIFT 20
-#define TLBnCFG_MAXSIZE 0x000f0000 /* Maximum Page Size (v1.0) */
-#define TLBnCFG_MAXSIZE_SHIFT 16
-#define TLBnCFG_ASSOC 0xff000000 /* Associativity */
-#define TLBnCFG_ASSOC_SHIFT 24
-
-/* TLBnPS encoding */
-#define TLBnPS_4K 0x00000004
-#define TLBnPS_8K 0x00000008
-#define TLBnPS_16K 0x00000010
-#define TLBnPS_32K 0x00000020
-#define TLBnPS_64K 0x00000040
-#define TLBnPS_128K 0x00000080
-#define TLBnPS_256K 0x00000100
-#define TLBnPS_512K 0x00000200
-#define TLBnPS_1M 0x00000400
-#define TLBnPS_2M 0x00000800
-#define TLBnPS_4M 0x00001000
-#define TLBnPS_8M 0x00002000
-#define TLBnPS_16M 0x00004000
-#define TLBnPS_32M 0x00008000
-#define TLBnPS_64M 0x00010000
-#define TLBnPS_128M 0x00020000
-#define TLBnPS_256M 0x00040000
-#define TLBnPS_512M 0x00080000
-#define TLBnPS_1G 0x00100000
-#define TLBnPS_2G 0x00200000
-#define TLBnPS_4G 0x00400000
-#define TLBnPS_8G 0x00800000
-#define TLBnPS_16G 0x01000000
-#define TLBnPS_32G 0x02000000
-#define TLBnPS_64G 0x04000000
-#define TLBnPS_128G 0x08000000
-#define TLBnPS_256G 0x10000000
-
-/* tlbilx action encoding */
-#define TLBILX_T_ALL 0
-#define TLBILX_T_TID 1
-#define TLBILX_T_FULLMATCH 3
-#define TLBILX_T_CLASS0 4
-#define TLBILX_T_CLASS1 5
-#define TLBILX_T_CLASS2 6
-#define TLBILX_T_CLASS3 7
-
-#ifndef __ASSEMBLY__
-#include <asm/bug.h>
-
-extern unsigned int tlbcam_index;
-
-typedef struct {
- unsigned int id;
- unsigned int active;
- unsigned long vdso_base;
-} mm_context_t;
-
-/* Page size definitions, common between 32 and 64-bit
- *
- * shift : is the "PAGE_SHIFT" value for that page size
- * penc : is the pte encoding mask
- *
- */
-struct mmu_psize_def
-{
- unsigned int shift; /* number of bits */
- unsigned int enc; /* PTE encoding */
- unsigned int ind; /* Corresponding indirect page size shift */
- unsigned int flags;
-#define MMU_PAGE_SIZE_DIRECT 0x1 /* Supported as a direct size */
-#define MMU_PAGE_SIZE_INDIRECT 0x2 /* Supported as an indirect size */
-};
-extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
-
-static inline int shift_to_mmu_psize(unsigned int shift)
-{
- int psize;
-
- for (psize = 0; psize < MMU_PAGE_COUNT; ++psize)
- if (mmu_psize_defs[psize].shift == shift)
- return psize;
- return -1;
-}
-
-static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
-{
- if (mmu_psize_defs[mmu_psize].shift)
- return mmu_psize_defs[mmu_psize].shift;
- BUG();
-}
-
-/* The page sizes use the same names as 64-bit hash but are
- * constants
- */
-#if defined(CONFIG_PPC_4K_PAGES)
-#define mmu_virtual_psize MMU_PAGE_4K
-#else
-#error Unsupported page size
-#endif
-
-extern int mmu_linear_psize;
-extern int mmu_vmemmap_psize;
-
-struct tlb_core_data {
- /*
- * Per-core spinlock for e6500 TLB handlers (no tlbsrx.)
- * Must be the first struct element.
- */
- u8 lock;
-
- /* For software way selection, as on Freescale TLB1 */
- u8 esel_next, esel_max, esel_first;
-};
-
-#ifdef CONFIG_PPC64
-extern unsigned long linear_map_top;
-extern int book3e_htw_mode;
-
-#define PPC_HTW_NONE 0
-#define PPC_HTW_IBM 1
-#define PPC_HTW_E6500 2
-
-/*
- * 64-bit booke platforms don't load the tlb in the tlb miss handler code.
- * HUGETLB_NEED_PRELOAD handles this - it causes huge_ptep_set_access_flags to
- * return 1, indicating that the tlb requires preloading.
- */
-#define HUGETLB_NEED_PRELOAD
-
-#define mmu_cleanup_all NULL
-
-#endif
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _ASM_POWERPC_MMU_BOOK3E_H_ */
#if defined(CONFIG_PPC_BOOK3S_32)
/* 32-bit classic hash table MMU */
#include <asm/book3s/32/mmu-hash.h>
-#elif defined(CONFIG_40x)
-/* 40x-style software loaded TLB */
-# include <asm/mmu-40x.h>
-#elif defined(CONFIG_44x)
-/* 44x-style software loaded TLB */
-# include <asm/mmu-44x.h>
-#elif defined(CONFIG_PPC_BOOK3E_MMU)
-/* Freescale Book-E software loaded TLB or Book-3e (ISA 2.06+) MMU */
-# include <asm/mmu-book3e.h>
-#elif defined (CONFIG_PPC_8xx)
-/* Motorola/Freescale 8xx software loaded TLB */
-# include <asm/mmu-8xx.h>
+#elif defined(CONFIG_PPC_MMU_NOHASH)
+#include <asm/nohash/mmu.h>
#endif
#endif /* __KERNEL__ */
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_MMU_40X_H_
+#define _ASM_POWERPC_MMU_40X_H_
+
+/*
+ * PPC40x support
+ */
+
+#define PPC40X_TLB_SIZE 64
+
+/*
+ * TLB entries are defined by a "high" tag portion and a "low" data
+ * portion. On all architectures, the data portion is 32-bits.
+ *
+ * TLB entries are managed entirely under software control by reading,
+ * writing, and searchoing using the 4xx-specific tlbre, tlbwr, and tlbsx
+ * instructions.
+ */
+
+#define TLB_LO 1
+#define TLB_HI 0
+
+#define TLB_DATA TLB_LO
+#define TLB_TAG TLB_HI
+
+/* Tag portion */
+
+#define TLB_EPN_MASK 0xFFFFFC00 /* Effective Page Number */
+#define TLB_PAGESZ_MASK 0x00000380
+#define TLB_PAGESZ(x) (((x) & 0x7) << 7)
+#define PAGESZ_1K 0
+#define PAGESZ_4K 1
+#define PAGESZ_16K 2
+#define PAGESZ_64K 3
+#define PAGESZ_256K 4
+#define PAGESZ_1M 5
+#define PAGESZ_4M 6
+#define PAGESZ_16M 7
+#define TLB_VALID 0x00000040 /* Entry is valid */
+
+/* Data portion */
+
+#define TLB_RPN_MASK 0xFFFFFC00 /* Real Page Number */
+#define TLB_PERM_MASK 0x00000300
+#define TLB_EX 0x00000200 /* Instruction execution allowed */
+#define TLB_WR 0x00000100 /* Writes permitted */
+#define TLB_ZSEL_MASK 0x000000F0
+#define TLB_ZSEL(x) (((x) & 0xF) << 4)
+#define TLB_ATTR_MASK 0x0000000F
+#define TLB_W 0x00000008 /* Caching is write-through */
+#define TLB_I 0x00000004 /* Caching is inhibited */
+#define TLB_M 0x00000002 /* Memory is coherent */
+#define TLB_G 0x00000001 /* Memory is guarded from prefetch */
+
+#ifndef __ASSEMBLY__
+
+typedef struct {
+ unsigned int id;
+ unsigned int active;
+ unsigned long vdso_base;
+} mm_context_t;
+
+#endif /* !__ASSEMBLY__ */
+
+#define mmu_virtual_psize MMU_PAGE_4K
+#define mmu_linear_psize MMU_PAGE_256M
+
+#endif /* _ASM_POWERPC_MMU_40X_H_ */
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_MMU_44X_H_
+#define _ASM_POWERPC_MMU_44X_H_
+/*
+ * PPC440 support
+ */
+
+#include <asm/asm-const.h>
+
+#define PPC44x_MMUCR_TID 0x000000ff
+#define PPC44x_MMUCR_STS 0x00010000
+
+#define PPC44x_TLB_PAGEID 0
+#define PPC44x_TLB_XLAT 1
+#define PPC44x_TLB_ATTRIB 2
+
+/* Page identification fields */
+#define PPC44x_TLB_EPN_MASK 0xfffffc00 /* Effective Page Number */
+#define PPC44x_TLB_VALID 0x00000200 /* Valid flag */
+#define PPC44x_TLB_TS 0x00000100 /* Translation address space */
+#define PPC44x_TLB_1K 0x00000000 /* Page sizes */
+#define PPC44x_TLB_4K 0x00000010
+#define PPC44x_TLB_16K 0x00000020
+#define PPC44x_TLB_64K 0x00000030
+#define PPC44x_TLB_256K 0x00000040
+#define PPC44x_TLB_1M 0x00000050
+#define PPC44x_TLB_16M 0x00000070
+#define PPC44x_TLB_256M 0x00000090
+
+/* Translation fields */
+#define PPC44x_TLB_RPN_MASK 0xfffffc00 /* Real Page Number */
+#define PPC44x_TLB_ERPN_MASK 0x0000000f
+
+/* Storage attribute and access control fields */
+#define PPC44x_TLB_ATTR_MASK 0x0000ff80
+#define PPC44x_TLB_U0 0x00008000 /* User 0 */
+#define PPC44x_TLB_U1 0x00004000 /* User 1 */
+#define PPC44x_TLB_U2 0x00002000 /* User 2 */
+#define PPC44x_TLB_U3 0x00001000 /* User 3 */
+#define PPC44x_TLB_W 0x00000800 /* Caching is write-through */
+#define PPC44x_TLB_I 0x00000400 /* Caching is inhibited */
+#define PPC44x_TLB_M 0x00000200 /* Memory is coherent */
+#define PPC44x_TLB_G 0x00000100 /* Memory is guarded */
+#define PPC44x_TLB_E 0x00000080 /* Memory is little endian */
+
+#define PPC44x_TLB_PERM_MASK 0x0000003f
+#define PPC44x_TLB_UX 0x00000020 /* User execution */
+#define PPC44x_TLB_UW 0x00000010 /* User write */
+#define PPC44x_TLB_UR 0x00000008 /* User read */
+#define PPC44x_TLB_SX 0x00000004 /* Super execution */
+#define PPC44x_TLB_SW 0x00000002 /* Super write */
+#define PPC44x_TLB_SR 0x00000001 /* Super read */
+
+/* Number of TLB entries */
+#define PPC44x_TLB_SIZE 64
+
+/* 47x bits */
+#define PPC47x_MMUCR_TID 0x0000ffff
+#define PPC47x_MMUCR_STS 0x00010000
+
+/* Page identification fields */
+#define PPC47x_TLB0_EPN_MASK 0xfffff000 /* Effective Page Number */
+#define PPC47x_TLB0_VALID 0x00000800 /* Valid flag */
+#define PPC47x_TLB0_TS 0x00000400 /* Translation address space */
+#define PPC47x_TLB0_4K 0x00000000
+#define PPC47x_TLB0_16K 0x00000010
+#define PPC47x_TLB0_64K 0x00000030
+#define PPC47x_TLB0_1M 0x00000070
+#define PPC47x_TLB0_16M 0x000000f0
+#define PPC47x_TLB0_256M 0x000001f0
+#define PPC47x_TLB0_1G 0x000003f0
+#define PPC47x_TLB0_BOLTED_R 0x00000008 /* tlbre only */
+
+/* Translation fields */
+#define PPC47x_TLB1_RPN_MASK 0xfffff000 /* Real Page Number */
+#define PPC47x_TLB1_ERPN_MASK 0x000003ff
+
+/* Storage attribute and access control fields */
+#define PPC47x_TLB2_ATTR_MASK 0x0003ff80
+#define PPC47x_TLB2_IL1I 0x00020000 /* Memory is guarded */
+#define PPC47x_TLB2_IL1D 0x00010000 /* Memory is guarded */
+#define PPC47x_TLB2_U0 0x00008000 /* User 0 */
+#define PPC47x_TLB2_U1 0x00004000 /* User 1 */
+#define PPC47x_TLB2_U2 0x00002000 /* User 2 */
+#define PPC47x_TLB2_U3 0x00001000 /* User 3 */
+#define PPC47x_TLB2_W 0x00000800 /* Caching is write-through */
+#define PPC47x_TLB2_I 0x00000400 /* Caching is inhibited */
+#define PPC47x_TLB2_M 0x00000200 /* Memory is coherent */
+#define PPC47x_TLB2_G 0x00000100 /* Memory is guarded */
+#define PPC47x_TLB2_E 0x00000080 /* Memory is little endian */
+#define PPC47x_TLB2_PERM_MASK 0x0000003f
+#define PPC47x_TLB2_UX 0x00000020 /* User execution */
+#define PPC47x_TLB2_UW 0x00000010 /* User write */
+#define PPC47x_TLB2_UR 0x00000008 /* User read */
+#define PPC47x_TLB2_SX 0x00000004 /* Super execution */
+#define PPC47x_TLB2_SW 0x00000002 /* Super write */
+#define PPC47x_TLB2_SR 0x00000001 /* Super read */
+#define PPC47x_TLB2_U_RWX (PPC47x_TLB2_UX|PPC47x_TLB2_UW|PPC47x_TLB2_UR)
+#define PPC47x_TLB2_S_RWX (PPC47x_TLB2_SX|PPC47x_TLB2_SW|PPC47x_TLB2_SR)
+#define PPC47x_TLB2_S_RW (PPC47x_TLB2_SW | PPC47x_TLB2_SR)
+#define PPC47x_TLB2_IMG (PPC47x_TLB2_I | PPC47x_TLB2_M | PPC47x_TLB2_G)
+
+#ifndef __ASSEMBLY__
+
+extern unsigned int tlb_44x_hwater;
+extern unsigned int tlb_44x_index;
+
+typedef struct {
+ unsigned int id;
+ unsigned int active;
+ unsigned long vdso_base;
+} mm_context_t;
+
+#endif /* !__ASSEMBLY__ */
+
+#ifndef CONFIG_PPC_EARLY_DEBUG_44x
+#define PPC44x_EARLY_TLBS 1
+#else
+#define PPC44x_EARLY_TLBS 2
+#define PPC44x_EARLY_DEBUG_VIRTADDR (ASM_CONST(0xf0000000) \
+ | (ASM_CONST(CONFIG_PPC_EARLY_DEBUG_44x_PHYSLOW) & 0xffff))
+#endif
+
+/* Size of the TLBs used for pinning in lowmem */
+#define PPC_PIN_SIZE (1 << 28) /* 256M */
+
+#if defined(CONFIG_PPC_4K_PAGES)
+#define PPC44x_TLBE_SIZE PPC44x_TLB_4K
+#define PPC47x_TLBE_SIZE PPC47x_TLB0_4K
+#define mmu_virtual_psize MMU_PAGE_4K
+#elif defined(CONFIG_PPC_16K_PAGES)
+#define PPC44x_TLBE_SIZE PPC44x_TLB_16K
+#define PPC47x_TLBE_SIZE PPC47x_TLB0_16K
+#define mmu_virtual_psize MMU_PAGE_16K
+#elif defined(CONFIG_PPC_64K_PAGES)
+#define PPC44x_TLBE_SIZE PPC44x_TLB_64K
+#define PPC47x_TLBE_SIZE PPC47x_TLB0_64K
+#define mmu_virtual_psize MMU_PAGE_64K
+#elif defined(CONFIG_PPC_256K_PAGES)
+#define PPC44x_TLBE_SIZE PPC44x_TLB_256K
+#define mmu_virtual_psize MMU_PAGE_256K
+#else
+#error "Unsupported PAGE_SIZE"
+#endif
+
+#define mmu_linear_psize MMU_PAGE_256M
+
+#define PPC44x_PGD_OFF_SHIFT (32 - PGDIR_SHIFT + PGD_T_LOG2)
+#define PPC44x_PGD_OFF_MASK_BIT (PGDIR_SHIFT - PGD_T_LOG2)
+#define PPC44x_PTE_ADD_SHIFT (32 - PGDIR_SHIFT + PTE_SHIFT + PTE_T_LOG2)
+#define PPC44x_PTE_ADD_MASK_BIT (32 - PTE_T_LOG2 - PTE_SHIFT)
+
+#endif /* _ASM_POWERPC_MMU_44X_H_ */
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_MMU_8XX_H_
+#define _ASM_POWERPC_MMU_8XX_H_
+/*
+ * PPC8xx support
+ */
+
+/* Control/status registers for the MPC8xx.
+ * A write operation to these registers causes serialized access.
+ * During software tablewalk, the registers used perform mask/shift-add
+ * operations when written/read. A TLB entry is created when the Mx_RPN
+ * is written, and the contents of several registers are used to
+ * create the entry.
+ */
+#define SPRN_MI_CTR 784 /* Instruction TLB control register */
+#define MI_GPM 0x80000000 /* Set domain manager mode */
+#define MI_PPM 0x40000000 /* Set subpage protection */
+#define MI_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */
+#define MI_RSV4I 0x08000000 /* Reserve 4 TLB entries */
+#define MI_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
+#define MI_IDXMASK 0x00001f00 /* TLB index to be loaded */
+#define MI_RESETVAL 0x00000000 /* Value of register at reset */
+
+/* These are the Ks and Kp from the PowerPC books. For proper operation,
+ * Ks = 0, Kp = 1.
+ */
+#define SPRN_MI_AP 786
+#define MI_Ks 0x80000000 /* Should not be set */
+#define MI_Kp 0x40000000 /* Should always be set */
+
+/*
+ * All pages' PP data bits are set to either 001 or 011 by copying _PAGE_EXEC
+ * into bit 21 in the ITLBmiss handler (bit 21 is the middle bit), which means
+ * respectively NA for All or X for Supervisor and no access for User.
+ * Then we use the APG to say whether accesses are according to Page rules or
+ * "all Supervisor" rules (Access to all)
+ * Therefore, we define 2 APG groups. lsb is _PMD_USER
+ * 0 => No user => 01 (all accesses performed according to page definition)
+ * 1 => User => 00 (all accesses performed as supervisor iaw page definition)
+ * We define all 16 groups so that all other bits of APG can take any value
+ */
+#define MI_APG_INIT 0x44444444
+
+/* The effective page number register. When read, contains the information
+ * about the last instruction TLB miss. When MI_RPN is written, bits in
+ * this register are used to create the TLB entry.
+ */
+#define SPRN_MI_EPN 787
+#define MI_EPNMASK 0xfffff000 /* Effective page number for entry */
+#define MI_EVALID 0x00000200 /* Entry is valid */
+#define MI_ASIDMASK 0x0000000f /* ASID match value */
+ /* Reset value is undefined */
+
+/* A "level 1" or "segment" or whatever you want to call it register.
+ * For the instruction TLB, it contains bits that get loaded into the
+ * TLB entry when the MI_RPN is written.
+ */
+#define SPRN_MI_TWC 789
+#define MI_APG 0x000001e0 /* Access protection group (0) */
+#define MI_GUARDED 0x00000010 /* Guarded storage */
+#define MI_PSMASK 0x0000000c /* Mask of page size bits */
+#define MI_PS8MEG 0x0000000c /* 8M page size */
+#define MI_PS512K 0x00000004 /* 512K page size */
+#define MI_PS4K_16K 0x00000000 /* 4K or 16K page size */
+#define MI_SVALID 0x00000001 /* Segment entry is valid */
+ /* Reset value is undefined */
+
+/* Real page number. Defined by the pte. Writing this register
+ * causes a TLB entry to be created for the instruction TLB, using
+ * additional information from the MI_EPN, and MI_TWC registers.
+ */
+#define SPRN_MI_RPN 790
+#define MI_SPS16K 0x00000008 /* Small page size (0 = 4k, 1 = 16k) */
+
+/* Define an RPN value for mapping kernel memory to large virtual
+ * pages for boot initialization. This has real page number of 0,
+ * large page size, shared page, cache enabled, and valid.
+ * Also mark all subpages valid and write access.
+ */
+#define MI_BOOTINIT 0x000001fd
+
+#define SPRN_MD_CTR 792 /* Data TLB control register */
+#define MD_GPM 0x80000000 /* Set domain manager mode */
+#define MD_PPM 0x40000000 /* Set subpage protection */
+#define MD_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */
+#define MD_WTDEF 0x10000000 /* Set writethrough when MMU dis */
+#define MD_RSV4I 0x08000000 /* Reserve 4 TLB entries */
+#define MD_TWAM 0x04000000 /* Use 4K page hardware assist */
+#define MD_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
+#define MD_IDXMASK 0x00001f00 /* TLB index to be loaded */
+#define MD_RESETVAL 0x04000000 /* Value of register at reset */
+
+#define SPRN_M_CASID 793 /* Address space ID (context) to match */
+#define MC_ASIDMASK 0x0000000f /* Bits used for ASID value */
+
+
+/* These are the Ks and Kp from the PowerPC books. For proper operation,
+ * Ks = 0, Kp = 1.
+ */
+#define SPRN_MD_AP 794
+#define MD_Ks 0x80000000 /* Should not be set */
+#define MD_Kp 0x40000000 /* Should always be set */
+
+/*
+ * All pages' PP data bits are set to either 000 or 011 or 001, which means
+ * respectively RW for Supervisor and no access for User, or RO for
+ * Supervisor and no access for user and NA for ALL.
+ * Then we use the APG to say whether accesses are according to Page rules or
+ * "all Supervisor" rules (Access to all)
+ * Therefore, we define 2 APG groups. lsb is _PMD_USER
+ * 0 => No user => 01 (all accesses performed according to page definition)
+ * 1 => User => 00 (all accesses performed as supervisor iaw page definition)
+ * We define all 16 groups so that all other bits of APG can take any value
+ */
+#define MD_APG_INIT 0x44444444
+
+/* The effective page number register. When read, contains the information
+ * about the last instruction TLB miss. When MD_RPN is written, bits in
+ * this register are used to create the TLB entry.
+ */
+#define SPRN_MD_EPN 795
+#define MD_EPNMASK 0xfffff000 /* Effective page number for entry */
+#define MD_EVALID 0x00000200 /* Entry is valid */
+#define MD_ASIDMASK 0x0000000f /* ASID match value */
+ /* Reset value is undefined */
+
+/* The pointer to the base address of the first level page table.
+ * During a software tablewalk, reading this register provides the address
+ * of the entry associated with MD_EPN.
+ */
+#define SPRN_M_TWB 796
+#define M_L1TB 0xfffff000 /* Level 1 table base address */
+#define M_L1INDX 0x00000ffc /* Level 1 index, when read */
+ /* Reset value is undefined */
+
+/* A "level 1" or "segment" or whatever you want to call it register.
+ * For the data TLB, it contains bits that get loaded into the TLB entry
+ * when the MD_RPN is written. It is also provides the hardware assist
+ * for finding the PTE address during software tablewalk.
+ */
+#define SPRN_MD_TWC 797
+#define MD_L2TB 0xfffff000 /* Level 2 table base address */
+#define MD_L2INDX 0xfffffe00 /* Level 2 index (*pte), when read */
+#define MD_APG 0x000001e0 /* Access protection group (0) */
+#define MD_GUARDED 0x00000010 /* Guarded storage */
+#define MD_PSMASK 0x0000000c /* Mask of page size bits */
+#define MD_PS8MEG 0x0000000c /* 8M page size */
+#define MD_PS512K 0x00000004 /* 512K page size */
+#define MD_PS4K_16K 0x00000000 /* 4K or 16K page size */
+#define MD_WT 0x00000002 /* Use writethrough page attribute */
+#define MD_SVALID 0x00000001 /* Segment entry is valid */
+ /* Reset value is undefined */
+
+
+/* Real page number. Defined by the pte. Writing this register
+ * causes a TLB entry to be created for the data TLB, using
+ * additional information from the MD_EPN, and MD_TWC registers.
+ */
+#define SPRN_MD_RPN 798
+#define MD_SPS16K 0x00000008 /* Small page size (0 = 4k, 1 = 16k) */
+
+/* This is a temporary storage register that could be used to save
+ * a processor working register during a tablewalk.
+ */
+#define SPRN_M_TW 799
+
+#ifdef CONFIG_PPC_MM_SLICES
+#include <asm/nohash/32/slice.h>
+#define SLICE_ARRAY_SIZE (1 << (32 - SLICE_LOW_SHIFT - 1))
+#endif
+
+#ifndef __ASSEMBLY__
+struct slice_mask {
+ u64 low_slices;
+ DECLARE_BITMAP(high_slices, 0);
+};
+
+typedef struct {
+ unsigned int id;
+ unsigned int active;
+ unsigned long vdso_base;
+#ifdef CONFIG_PPC_MM_SLICES
+ u16 user_psize; /* page size index */
+ unsigned char low_slices_psize[SLICE_ARRAY_SIZE];
+ unsigned char high_slices_psize[0];
+ unsigned long slb_addr_limit;
+ struct slice_mask mask_base_psize; /* 4k or 16k */
+# ifdef CONFIG_HUGETLB_PAGE
+ struct slice_mask mask_512k;
+ struct slice_mask mask_8m;
+# endif
+#endif
+} mm_context_t;
+
+#define PHYS_IMMR_BASE (mfspr(SPRN_IMMR) & 0xfff80000)
+#define VIRT_IMMR_BASE (__fix_to_virt(FIX_IMMR_BASE))
+
+/* Page size definitions, common between 32 and 64-bit
+ *
+ * shift : is the "PAGE_SHIFT" value for that page size
+ * penc : is the pte encoding mask
+ *
+ */
+struct mmu_psize_def {
+ unsigned int shift; /* number of bits */
+ unsigned int enc; /* PTE encoding */
+ unsigned int ind; /* Corresponding indirect page size shift */
+ unsigned int flags;
+#define MMU_PAGE_SIZE_DIRECT 0x1 /* Supported as a direct size */
+#define MMU_PAGE_SIZE_INDIRECT 0x2 /* Supported as an indirect size */
+};
+
+extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
+
+static inline int shift_to_mmu_psize(unsigned int shift)
+{
+ int psize;
+
+ for (psize = 0; psize < MMU_PAGE_COUNT; ++psize)
+ if (mmu_psize_defs[psize].shift == shift)
+ return psize;
+ return -1;
+}
+
+static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
+{
+ if (mmu_psize_defs[mmu_psize].shift)
+ return mmu_psize_defs[mmu_psize].shift;
+ BUG();
+}
+
+/* patch sites */
+extern s32 patch__itlbmiss_linmem_top;
+extern s32 patch__dtlbmiss_linmem_top, patch__dtlbmiss_immr_jmp;
+extern s32 patch__fixupdar_linmem_top;
+
+extern s32 patch__itlbmiss_exit_1, patch__itlbmiss_exit_2;
+extern s32 patch__dtlbmiss_exit_1, patch__dtlbmiss_exit_2, patch__dtlbmiss_exit_3;
+extern s32 patch__itlbmiss_perf, patch__dtlbmiss_perf;
+
+#endif /* !__ASSEMBLY__ */
+
+#if defined(CONFIG_PPC_4K_PAGES)
+#define mmu_virtual_psize MMU_PAGE_4K
+#elif defined(CONFIG_PPC_16K_PAGES)
+#define mmu_virtual_psize MMU_PAGE_16K
+#else
+#error "Unsupported PAGE_SIZE"
+#endif
+
+#define mmu_linear_psize MMU_PAGE_8M
+
+#endif /* _ASM_POWERPC_MMU_8XX_H_ */
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_NOHASH_32_MMU_H_
+#define _ASM_POWERPC_NOHASH_32_MMU_H_
+
+#if defined(CONFIG_40x)
+/* 40x-style software loaded TLB */
+#include <asm/nohash/32/mmu-40x.h>
+#elif defined(CONFIG_44x)
+/* 44x-style software loaded TLB */
+#include <asm/nohash/32/mmu-44x.h>
+#elif defined(CONFIG_PPC_BOOK3E_MMU)
+/* Freescale Book-E software loaded TLB or Book-3e (ISA 2.06+) MMU */
+#include <asm/nohash/mmu-book3e.h>
+#elif defined (CONFIG_PPC_8xx)
+/* Motorola/Freescale 8xx software loaded TLB */
+#include <asm/nohash/32/mmu-8xx.h>
+#endif
+
+#endif /* _ASM_POWERPC_NOHASH_32_MMU_H_ */
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_NOHASH_64_MMU_H_
+#define _ASM_POWERPC_NOHASH_64_MMU_H_
+
+/* Freescale Book-E software loaded TLB or Book-3e (ISA 2.06+) MMU */
+#include <asm/nohash/mmu-book3e.h>
+
+#endif /* _ASM_POWERPC_NOHASH_64_MMU_H_ */
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_MMU_BOOK3E_H_
+#define _ASM_POWERPC_MMU_BOOK3E_H_
+/*
+ * Freescale Book-E/Book-3e (ISA 2.06+) MMU support
+ */
+
+/* Book-3e defined page sizes */
+#define BOOK3E_PAGESZ_1K 0
+#define BOOK3E_PAGESZ_2K 1
+#define BOOK3E_PAGESZ_4K 2
+#define BOOK3E_PAGESZ_8K 3
+#define BOOK3E_PAGESZ_16K 4
+#define BOOK3E_PAGESZ_32K 5
+#define BOOK3E_PAGESZ_64K 6
+#define BOOK3E_PAGESZ_128K 7
+#define BOOK3E_PAGESZ_256K 8
+#define BOOK3E_PAGESZ_512K 9
+#define BOOK3E_PAGESZ_1M 10
+#define BOOK3E_PAGESZ_2M 11
+#define BOOK3E_PAGESZ_4M 12
+#define BOOK3E_PAGESZ_8M 13
+#define BOOK3E_PAGESZ_16M 14
+#define BOOK3E_PAGESZ_32M 15
+#define BOOK3E_PAGESZ_64M 16
+#define BOOK3E_PAGESZ_128M 17
+#define BOOK3E_PAGESZ_256M 18
+#define BOOK3E_PAGESZ_512M 19
+#define BOOK3E_PAGESZ_1GB 20
+#define BOOK3E_PAGESZ_2GB 21
+#define BOOK3E_PAGESZ_4GB 22
+#define BOOK3E_PAGESZ_8GB 23
+#define BOOK3E_PAGESZ_16GB 24
+#define BOOK3E_PAGESZ_32GB 25
+#define BOOK3E_PAGESZ_64GB 26
+#define BOOK3E_PAGESZ_128GB 27
+#define BOOK3E_PAGESZ_256GB 28
+#define BOOK3E_PAGESZ_512GB 29
+#define BOOK3E_PAGESZ_1TB 30
+#define BOOK3E_PAGESZ_2TB 31
+
+/* MAS registers bit definitions */
+
+#define MAS0_TLBSEL_MASK 0x30000000
+#define MAS0_TLBSEL_SHIFT 28
+#define MAS0_TLBSEL(x) (((x) << MAS0_TLBSEL_SHIFT) & MAS0_TLBSEL_MASK)
+#define MAS0_GET_TLBSEL(mas0) (((mas0) & MAS0_TLBSEL_MASK) >> \
+ MAS0_TLBSEL_SHIFT)
+#define MAS0_ESEL_MASK 0x0FFF0000
+#define MAS0_ESEL_SHIFT 16
+#define MAS0_ESEL(x) (((x) << MAS0_ESEL_SHIFT) & MAS0_ESEL_MASK)
+#define MAS0_NV(x) ((x) & 0x00000FFF)
+#define MAS0_HES 0x00004000
+#define MAS0_WQ_ALLWAYS 0x00000000
+#define MAS0_WQ_COND 0x00001000
+#define MAS0_WQ_CLR_RSRV 0x00002000
+
+#define MAS1_VALID 0x80000000
+#define MAS1_IPROT 0x40000000
+#define MAS1_TID(x) (((x) << 16) & 0x3FFF0000)
+#define MAS1_IND 0x00002000
+#define MAS1_TS 0x00001000
+#define MAS1_TSIZE_MASK 0x00000f80
+#define MAS1_TSIZE_SHIFT 7
+#define MAS1_TSIZE(x) (((x) << MAS1_TSIZE_SHIFT) & MAS1_TSIZE_MASK)
+#define MAS1_GET_TSIZE(mas1) (((mas1) & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT)
+
+#define MAS2_EPN (~0xFFFUL)
+#define MAS2_X0 0x00000040
+#define MAS2_X1 0x00000020
+#define MAS2_W 0x00000010
+#define MAS2_I 0x00000008
+#define MAS2_M 0x00000004
+#define MAS2_G 0x00000002
+#define MAS2_E 0x00000001
+#define MAS2_WIMGE_MASK 0x0000001f
+#define MAS2_EPN_MASK(size) (~0 << (size + 10))
+#define MAS2_VAL(addr, size, flags) ((addr) & MAS2_EPN_MASK(size) | (flags))
+
+#define MAS3_RPN 0xFFFFF000
+#define MAS3_U0 0x00000200
+#define MAS3_U1 0x00000100
+#define MAS3_U2 0x00000080
+#define MAS3_U3 0x00000040
+#define MAS3_UX 0x00000020
+#define MAS3_SX 0x00000010
+#define MAS3_UW 0x00000008
+#define MAS3_SW 0x00000004
+#define MAS3_UR 0x00000002
+#define MAS3_SR 0x00000001
+#define MAS3_BAP_MASK 0x0000003f
+#define MAS3_SPSIZE 0x0000003e
+#define MAS3_SPSIZE_SHIFT 1
+
+#define MAS4_TLBSEL_MASK MAS0_TLBSEL_MASK
+#define MAS4_TLBSELD(x) MAS0_TLBSEL(x)
+#define MAS4_INDD 0x00008000 /* Default IND */
+#define MAS4_TSIZED(x) MAS1_TSIZE(x)
+#define MAS4_X0D 0x00000040
+#define MAS4_X1D 0x00000020
+#define MAS4_WD 0x00000010
+#define MAS4_ID 0x00000008
+#define MAS4_MD 0x00000004
+#define MAS4_GD 0x00000002
+#define MAS4_ED 0x00000001
+#define MAS4_WIMGED_MASK 0x0000001f /* Default WIMGE */
+#define MAS4_WIMGED_SHIFT 0
+#define MAS4_VLED MAS4_X1D /* Default VLE */
+#define MAS4_ACMD 0x000000c0 /* Default ACM */
+#define MAS4_ACMD_SHIFT 6
+#define MAS4_TSIZED_MASK 0x00000f80 /* Default TSIZE */
+#define MAS4_TSIZED_SHIFT 7
+
+#define MAS5_SGS 0x80000000
+
+#define MAS6_SPID0 0x3FFF0000
+#define MAS6_SPID1 0x00007FFE
+#define MAS6_ISIZE(x) MAS1_TSIZE(x)
+#define MAS6_SAS 0x00000001
+#define MAS6_SPID MAS6_SPID0
+#define MAS6_SIND 0x00000002 /* Indirect page */
+#define MAS6_SIND_SHIFT 1
+#define MAS6_SPID_MASK 0x3fff0000
+#define MAS6_SPID_SHIFT 16
+#define MAS6_ISIZE_MASK 0x00000f80
+#define MAS6_ISIZE_SHIFT 7
+
+#define MAS7_RPN 0xFFFFFFFF
+
+#define MAS8_TGS 0x80000000 /* Guest space */
+#define MAS8_VF 0x40000000 /* Virtualization Fault */
+#define MAS8_TLPID 0x000000ff
+
+/* Bit definitions for MMUCFG */
+#define MMUCFG_MAVN 0x00000003 /* MMU Architecture Version Number */
+#define MMUCFG_MAVN_V1 0x00000000 /* v1.0 */
+#define MMUCFG_MAVN_V2 0x00000001 /* v2.0 */
+#define MMUCFG_NTLBS 0x0000000c /* Number of TLBs */
+#define MMUCFG_PIDSIZE 0x000007c0 /* PID Reg Size */
+#define MMUCFG_TWC 0x00008000 /* TLB Write Conditional (v2.0) */
+#define MMUCFG_LRAT 0x00010000 /* LRAT Supported (v2.0) */
+#define MMUCFG_RASIZE 0x00fe0000 /* Real Addr Size */
+#define MMUCFG_LPIDSIZE 0x0f000000 /* LPID Reg Size */
+
+/* Bit definitions for MMUCSR0 */
+#define MMUCSR0_TLB1FI 0x00000002 /* TLB1 Flash invalidate */
+#define MMUCSR0_TLB0FI 0x00000004 /* TLB0 Flash invalidate */
+#define MMUCSR0_TLB2FI 0x00000040 /* TLB2 Flash invalidate */
+#define MMUCSR0_TLB3FI 0x00000020 /* TLB3 Flash invalidate */
+#define MMUCSR0_TLBFI (MMUCSR0_TLB0FI | MMUCSR0_TLB1FI | \
+ MMUCSR0_TLB2FI | MMUCSR0_TLB3FI)
+#define MMUCSR0_TLB0PS 0x00000780 /* TLB0 Page Size */
+#define MMUCSR0_TLB1PS 0x00007800 /* TLB1 Page Size */
+#define MMUCSR0_TLB2PS 0x00078000 /* TLB2 Page Size */
+#define MMUCSR0_TLB3PS 0x00780000 /* TLB3 Page Size */
+
+/* MMUCFG bits */
+#define MMUCFG_MAVN_NASK 0x00000003
+#define MMUCFG_MAVN_V1_0 0x00000000
+#define MMUCFG_MAVN_V2_0 0x00000001
+#define MMUCFG_NTLB_MASK 0x0000000c
+#define MMUCFG_NTLB_SHIFT 2
+#define MMUCFG_PIDSIZE_MASK 0x000007c0
+#define MMUCFG_PIDSIZE_SHIFT 6
+#define MMUCFG_TWC 0x00008000
+#define MMUCFG_LRAT 0x00010000
+#define MMUCFG_RASIZE_MASK 0x00fe0000
+#define MMUCFG_RASIZE_SHIFT 17
+#define MMUCFG_LPIDSIZE_MASK 0x0f000000
+#define MMUCFG_LPIDSIZE_SHIFT 24
+
+/* TLBnCFG encoding */
+#define TLBnCFG_N_ENTRY 0x00000fff /* number of entries */
+#define TLBnCFG_HES 0x00002000 /* HW select supported */
+#define TLBnCFG_IPROT 0x00008000 /* IPROT supported */
+#define TLBnCFG_GTWE 0x00010000 /* Guest can write */
+#define TLBnCFG_IND 0x00020000 /* IND entries supported */
+#define TLBnCFG_PT 0x00040000 /* Can load from page table */
+#define TLBnCFG_MINSIZE 0x00f00000 /* Minimum Page Size (v1.0) */
+#define TLBnCFG_MINSIZE_SHIFT 20
+#define TLBnCFG_MAXSIZE 0x000f0000 /* Maximum Page Size (v1.0) */
+#define TLBnCFG_MAXSIZE_SHIFT 16
+#define TLBnCFG_ASSOC 0xff000000 /* Associativity */
+#define TLBnCFG_ASSOC_SHIFT 24
+
+/* TLBnPS encoding */
+#define TLBnPS_4K 0x00000004
+#define TLBnPS_8K 0x00000008
+#define TLBnPS_16K 0x00000010
+#define TLBnPS_32K 0x00000020
+#define TLBnPS_64K 0x00000040
+#define TLBnPS_128K 0x00000080
+#define TLBnPS_256K 0x00000100
+#define TLBnPS_512K 0x00000200
+#define TLBnPS_1M 0x00000400
+#define TLBnPS_2M 0x00000800
+#define TLBnPS_4M 0x00001000
+#define TLBnPS_8M 0x00002000
+#define TLBnPS_16M 0x00004000
+#define TLBnPS_32M 0x00008000
+#define TLBnPS_64M 0x00010000
+#define TLBnPS_128M 0x00020000
+#define TLBnPS_256M 0x00040000
+#define TLBnPS_512M 0x00080000
+#define TLBnPS_1G 0x00100000
+#define TLBnPS_2G 0x00200000
+#define TLBnPS_4G 0x00400000
+#define TLBnPS_8G 0x00800000
+#define TLBnPS_16G 0x01000000
+#define TLBnPS_32G 0x02000000
+#define TLBnPS_64G 0x04000000
+#define TLBnPS_128G 0x08000000
+#define TLBnPS_256G 0x10000000
+
+/* tlbilx action encoding */
+#define TLBILX_T_ALL 0
+#define TLBILX_T_TID 1
+#define TLBILX_T_FULLMATCH 3
+#define TLBILX_T_CLASS0 4
+#define TLBILX_T_CLASS1 5
+#define TLBILX_T_CLASS2 6
+#define TLBILX_T_CLASS3 7
+
+#ifndef __ASSEMBLY__
+#include <asm/bug.h>
+
+extern unsigned int tlbcam_index;
+
+typedef struct {
+ unsigned int id;
+ unsigned int active;
+ unsigned long vdso_base;
+} mm_context_t;
+
+/* Page size definitions, common between 32 and 64-bit
+ *
+ * shift : is the "PAGE_SHIFT" value for that page size
+ * penc : is the pte encoding mask
+ *
+ */
+struct mmu_psize_def
+{
+ unsigned int shift; /* number of bits */
+ unsigned int enc; /* PTE encoding */
+ unsigned int ind; /* Corresponding indirect page size shift */
+ unsigned int flags;
+#define MMU_PAGE_SIZE_DIRECT 0x1 /* Supported as a direct size */
+#define MMU_PAGE_SIZE_INDIRECT 0x2 /* Supported as an indirect size */
+};
+extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
+
+static inline int shift_to_mmu_psize(unsigned int shift)
+{
+ int psize;
+
+ for (psize = 0; psize < MMU_PAGE_COUNT; ++psize)
+ if (mmu_psize_defs[psize].shift == shift)
+ return psize;
+ return -1;
+}
+
+static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
+{
+ if (mmu_psize_defs[mmu_psize].shift)
+ return mmu_psize_defs[mmu_psize].shift;
+ BUG();
+}
+
+/* The page sizes use the same names as 64-bit hash but are
+ * constants
+ */
+#if defined(CONFIG_PPC_4K_PAGES)
+#define mmu_virtual_psize MMU_PAGE_4K
+#else
+#error Unsupported page size
+#endif
+
+extern int mmu_linear_psize;
+extern int mmu_vmemmap_psize;
+
+struct tlb_core_data {
+ /*
+ * Per-core spinlock for e6500 TLB handlers (no tlbsrx.)
+ * Must be the first struct element.
+ */
+ u8 lock;
+
+ /* For software way selection, as on Freescale TLB1 */
+ u8 esel_next, esel_max, esel_first;
+};
+
+#ifdef CONFIG_PPC64
+extern unsigned long linear_map_top;
+extern int book3e_htw_mode;
+
+#define PPC_HTW_NONE 0
+#define PPC_HTW_IBM 1
+#define PPC_HTW_E6500 2
+
+/*
+ * 64-bit booke platforms don't load the tlb in the tlb miss handler code.
+ * HUGETLB_NEED_PRELOAD handles this - it causes huge_ptep_set_access_flags to
+ * return 1, indicating that the tlb requires preloading.
+ */
+#define HUGETLB_NEED_PRELOAD
+
+#define mmu_cleanup_all NULL
+
+#endif
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_POWERPC_MMU_BOOK3E_H_ */
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_NOHASH_MMU_H_
+#define _ASM_POWERPC_NOHASH_MMU_H_
+
+#ifdef CONFIG_PPC64
+#include <asm/nohash/64/mmu.h>
+#else
+#include <asm/nohash/32/mmu.h>
+#endif
+
+#endif /* _ASM_POWERPC_NOHASH_MMU_H_ */
#include <asm/processor.h>
#include <asm/cputable.h>
#include <asm/ppc_asm.h>
-#include <asm/mmu-book3e.h>
+#include <asm/nohash/mmu-book3e.h>
#include <asm/asm-offsets.h>
#include <asm/mpc85xx.h>
#define KVM_E500_H
#include <linux/kvm_host.h>
-#include <asm/mmu-book3e.h>
+#include <asm/nohash/mmu-book3e.h>
#include <asm/tlb.h>
#include <asm/cputhreads.h>
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