Adding upstream version 4.19.304.upstream/4.19.304upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 244 deletions

diff --git a/arch/powerpc/include/asm/mmu-8xx.h b/arch/powerpc/include/asm/mmu-8xx.h
deleted file mode 100644
index 193f53116..000000000
--- a/arch/powerpc/include/asm/mmu-8xx.h
+++ /dev/null
@@ -1,244 +0,0 @@
-/* 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();
-}
-
-#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_ */