*/
typedef struct _pte {
- unsigned long page_num:20;
- unsigned long flags:12; /* Page flags (some unused bits) */
+ unsigned long page_num:20;
+ unsigned long flags:12; /* Page flags (some unused bits) */
} pte;
#define PD_SHIFT (10+12) /* Page directory */
* 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 */
-
/*
* e500 support
*/
#define BOOKE_PAGESZ_16M 7
#define BOOKE_PAGESZ_64M 8
#define BOOKE_PAGESZ_256M 9
-#define BOOKE_PAGESZ_1GB 10
-#define BOOKE_PAGESZ_4GB 11
+#define BOOKE_PAGESZ_1G 10
+#define BOOKE_PAGESZ_4G 11
#if defined(CONFIG_MPC86xx)
#define LAWBAR_BASE_ADDR 0x00FFFFFF
#define LAWAR_TRGT_IF_PCI1 0x00000000
#define LAWAR_TRGT_IF_PCIX 0x00000000
#define LAWAR_TRGT_IF_PCI2 0x00100000
-#define LAWAR_TRGT_IF_HT 0x00200000
+#define LAWAR_TRGT_IF_PEX 0x00200000
#define LAWAR_TRGT_IF_LBC 0x00400000
#define LAWAR_TRGT_IF_CCSR 0x00800000
#define LAWAR_TRGT_IF_DDR_INTERLEAVED 0x00B00000
#define LAWAR_SIZE_16G (LAWAR_SIZE_BASE+23)
#define LAWAR_SIZE_32G (LAWAR_SIZE_BASE+24)
-#ifdef CONFIG_440SPE
+#ifdef CONFIG_440
+/* General */
+#define TLB_VALID 0x00000200
+
+/* Supported page sizes */
+
+#define SZ_1K 0x00000000
+#define SZ_4K 0x00000010
+#define SZ_16K 0x00000020
+#define SZ_64K 0x00000030
+#define SZ_256K 0x00000040
+#define SZ_1M 0x00000050
+#define SZ_16M 0x00000070
+#define SZ_256M 0x00000090
+
+/* Storage attributes */
+#define SA_W 0x00000800 /* Write-through */
+#define SA_I 0x00000400 /* Caching inhibited */
+#define SA_M 0x00000200 /* Memory coherence */
+#define SA_G 0x00000100 /* Guarded */
+#define SA_E 0x00000080 /* Endian */
+
+/* Access control */
+#define AC_X 0x00000024 /* Execute */
+#define AC_W 0x00000012 /* Write */
+#define AC_R 0x00000009 /* Read */
+
+/* Some handy macros */
+
+#define EPN(e) ((e) & 0xfffffc00)
+#define TLB0(epn,sz) ((EPN((epn)) | (sz) | TLB_VALID ))
+#define TLB1(rpn,erpn) (((rpn) & 0xfffffc00) | (erpn))
+#define TLB2(a) ((a) & 0x00000fbf)
+
+#define tlbtab_start\
+ mflr r1 ;\
+ bl 0f ;
+
+#define tlbtab_end\
+ .long 0, 0, 0 ;\
+0: mflr r0 ;\
+ mtlr r1 ;\
+ blr ;
+
+#define tlbentry(epn,sz,rpn,erpn,attr)\
+ .long TLB0(epn,sz),TLB1(rpn,erpn),TLB2(attr)
+
+/*----------------------------------------------------------------------------+
+| TLB specific defines.
++----------------------------------------------------------------------------*/
+#define TLB_256MB_ALIGN_MASK 0xF0000000
+#define TLB_16MB_ALIGN_MASK 0xFF000000
+#define TLB_1MB_ALIGN_MASK 0xFFF00000
+#define TLB_256KB_ALIGN_MASK 0xFFFC0000
+#define TLB_64KB_ALIGN_MASK 0xFFFF0000
+#define TLB_16KB_ALIGN_MASK 0xFFFFC000
+#define TLB_4KB_ALIGN_MASK 0xFFFFF000
+#define TLB_1KB_ALIGN_MASK 0xFFFFFC00
+#define TLB_256MB_SIZE 0x10000000
+#define TLB_16MB_SIZE 0x01000000
+#define TLB_1MB_SIZE 0x00100000
+#define TLB_256KB_SIZE 0x00040000
+#define TLB_64KB_SIZE 0x00010000
+#define TLB_16KB_SIZE 0x00004000
+#define TLB_4KB_SIZE 0x00001000
+#define TLB_1KB_SIZE 0x00000400
+
+#define TLB_WORD0_EPN_MASK 0xFFFFFC00
+#define TLB_WORD0_EPN_ENCODE(n) (((unsigned long)(n))&0xFFFFFC00)
+#define TLB_WORD0_EPN_DECODE(n) (((unsigned long)(n))&0xFFFFFC00)
+#define TLB_WORD0_V_MASK 0x00000200
+#define TLB_WORD0_V_ENABLE 0x00000200
+#define TLB_WORD0_V_DISABLE 0x00000000
+#define TLB_WORD0_TS_MASK 0x00000100
+#define TLB_WORD0_TS_1 0x00000100
+#define TLB_WORD0_TS_0 0x00000000
+#define TLB_WORD0_SIZE_MASK 0x000000F0
+#define TLB_WORD0_SIZE_1KB 0x00000000
+#define TLB_WORD0_SIZE_4KB 0x00000010
+#define TLB_WORD0_SIZE_16KB 0x00000020
+#define TLB_WORD0_SIZE_64KB 0x00000030
+#define TLB_WORD0_SIZE_256KB 0x00000040
+#define TLB_WORD0_SIZE_1MB 0x00000050
+#define TLB_WORD0_SIZE_16MB 0x00000070
+#define TLB_WORD0_SIZE_256MB 0x00000090
+#define TLB_WORD0_TPAR_MASK 0x0000000F
+#define TLB_WORD0_TPAR_ENCODE(n) ((((unsigned long)(n))&0x0F)<<0)
+#define TLB_WORD0_TPAR_DECODE(n) ((((unsigned long)(n))>>0)&0x0F)
+
+#define TLB_WORD1_RPN_MASK 0xFFFFFC00
+#define TLB_WORD1_RPN_ENCODE(n) (((unsigned long)(n))&0xFFFFFC00)
+#define TLB_WORD1_RPN_DECODE(n) (((unsigned long)(n))&0xFFFFFC00)
+#define TLB_WORD1_PAR1_MASK 0x00000300
+#define TLB_WORD1_PAR1_ENCODE(n) ((((unsigned long)(n))&0x03)<<8)
+#define TLB_WORD1_PAR1_DECODE(n) ((((unsigned long)(n))>>8)&0x03)
+#define TLB_WORD1_PAR1_0 0x00000000
+#define TLB_WORD1_PAR1_1 0x00000100
+#define TLB_WORD1_PAR1_2 0x00000200
+#define TLB_WORD1_PAR1_3 0x00000300
+#define TLB_WORD1_ERPN_MASK 0x0000000F
+#define TLB_WORD1_ERPN_ENCODE(n) ((((unsigned long)(n))&0x0F)<<0)
+#define TLB_WORD1_ERPN_DECODE(n) ((((unsigned long)(n))>>0)&0x0F)
+
+#define TLB_WORD2_PAR2_MASK 0xC0000000
+#define TLB_WORD2_PAR2_ENCODE(n) ((((unsigned long)(n))&0x03)<<30)
+#define TLB_WORD2_PAR2_DECODE(n) ((((unsigned long)(n))>>30)&0x03)
+#define TLB_WORD2_PAR2_0 0x00000000
+#define TLB_WORD2_PAR2_1 0x40000000
+#define TLB_WORD2_PAR2_2 0x80000000
+#define TLB_WORD2_PAR2_3 0xC0000000
+#define TLB_WORD2_U0_MASK 0x00008000
+#define TLB_WORD2_U0_ENABLE 0x00008000
+#define TLB_WORD2_U0_DISABLE 0x00000000
+#define TLB_WORD2_U1_MASK 0x00004000
+#define TLB_WORD2_U1_ENABLE 0x00004000
+#define TLB_WORD2_U1_DISABLE 0x00000000
+#define TLB_WORD2_U2_MASK 0x00002000
+#define TLB_WORD2_U2_ENABLE 0x00002000
+#define TLB_WORD2_U2_DISABLE 0x00000000
+#define TLB_WORD2_U3_MASK 0x00001000
+#define TLB_WORD2_U3_ENABLE 0x00001000
+#define TLB_WORD2_U3_DISABLE 0x00000000
+#define TLB_WORD2_W_MASK 0x00000800
+#define TLB_WORD2_W_ENABLE 0x00000800
+#define TLB_WORD2_W_DISABLE 0x00000000
+#define TLB_WORD2_I_MASK 0x00000400
+#define TLB_WORD2_I_ENABLE 0x00000400
+#define TLB_WORD2_I_DISABLE 0x00000000
+#define TLB_WORD2_M_MASK 0x00000200
+#define TLB_WORD2_M_ENABLE 0x00000200
+#define TLB_WORD2_M_DISABLE 0x00000000
+#define TLB_WORD2_G_MASK 0x00000100
+#define TLB_WORD2_G_ENABLE 0x00000100
+#define TLB_WORD2_G_DISABLE 0x00000000
+#define TLB_WORD2_E_MASK 0x00000080
+#define TLB_WORD2_E_ENABLE 0x00000080
+#define TLB_WORD2_E_DISABLE 0x00000000
+#define TLB_WORD2_UX_MASK 0x00000020
+#define TLB_WORD2_UX_ENABLE 0x00000020
+#define TLB_WORD2_UX_DISABLE 0x00000000
+#define TLB_WORD2_UW_MASK 0x00000010
+#define TLB_WORD2_UW_ENABLE 0x00000010
+#define TLB_WORD2_UW_DISABLE 0x00000000
+#define TLB_WORD2_UR_MASK 0x00000008
+#define TLB_WORD2_UR_ENABLE 0x00000008
+#define TLB_WORD2_UR_DISABLE 0x00000000
+#define TLB_WORD2_SX_MASK 0x00000004
+#define TLB_WORD2_SX_ENABLE 0x00000004
+#define TLB_WORD2_SX_DISABLE 0x00000000
+#define TLB_WORD2_SW_MASK 0x00000002
+#define TLB_WORD2_SW_ENABLE 0x00000002
+#define TLB_WORD2_SW_DISABLE 0x00000000
+#define TLB_WORD2_SR_MASK 0x00000001
+#define TLB_WORD2_SR_ENABLE 0x00000001
+#define TLB_WORD2_SR_DISABLE 0x00000000
+
/*----------------------------------------------------------------------------+
| Following instructions are not available in Book E mode of the GNU assembler.
+----------------------------------------------------------------------------*/
#define MBAR_INST .long 0x7c000000|\
(854<<1)
-/*----------------------------------------------------------------------------+
-| Following instruction is not available in PPC405 mode of the GNU assembler.
-+----------------------------------------------------------------------------*/
-#define TLBRE(rt,ra,ws) .long 0x7c000000|\
- (rt<<21)|(ra<<16)|(ws<<11)|(946<<1)
+#ifndef __ASSEMBLY__
+/* Prototypes */
+void mttlb1(unsigned long index, unsigned long value);
+void mttlb2(unsigned long index, unsigned long value);
+void mttlb3(unsigned long index, unsigned long value);
+unsigned long mftlb1(unsigned long index);
+unsigned long mftlb2(unsigned long index);
+unsigned long mftlb3(unsigned long index);
+
+void program_tlb(u32 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
+void remove_tlb(u32 vaddr, u32 size);
+#endif /* __ASSEMBLY__ */
-#endif
+#endif /* CONFIG_440 */
#endif /* _PPC_MMU_H_ */
projects / platform / kernel / u-boot.git / blobdiff