| Current File : //proc/thread-self/root/usr/src/linux-headers-6.8.0-59/arch/powerpc/include/asm/nohash/mmu-e500.h |
/* 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 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
/*
* The mapping only needs to be cache-coherent on SMP, except on
* Freescale e500mc derivatives where it's also needed for coherent DMA.
*/
#if defined(CONFIG_SMP) || defined(CONFIG_PPC_E500MC)
#define MAS2_M_IF_NEEDED MAS2_M
#else
#define MAS2_M_IF_NEEDED 0
#endif
#ifndef __ASSEMBLY__
#include <asm/bug.h>
extern unsigned int tlbcam_index;
typedef struct {
unsigned int id;
unsigned int active;
void __user *vdso;
} 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_E6500 1
/*
* 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
#define MAX_PHYSMEM_BITS 44
#endif
#include <asm/percpu.h>
DECLARE_PER_CPU(int, next_tlbcam_idx);
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_POWERPC_MMU_BOOK3E_H_ */