2 * Copyright (c) 2011-2012 Semihalf.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/types.h>
31 #include <sys/systm.h>
33 #include <machine/machdep.h>
35 #include <powerpc/booke/dcr.h>
36 #include <powerpc/apm86xxx/apm86xxx.h>
38 #include <dev/fdt/fdt_common.h>
40 #define OCP_ADDR_WORDLO(addr) ((uint32_t)((uint64_t)(addr) & 0xFFFFFFFF))
41 #define OCP_ADDR_WORDHI(addr) ((uint32_t)((uint64_t)(addr) >> 32))
43 extern void tlb_write(u_int, uint32_t, uint32_t, uint32_t, tlbtid_t, uint32_t,
45 extern void tlb_read(u_int, uint32_t *, uint32_t *, uint32_t *, uint32_t *,
46 uint32_t *, uint32_t *);
48 unsigned int tlb_static_entries;
49 unsigned int tlb_current_entry = TLB_SIZE;
50 unsigned int tlb_misses = 0;
51 unsigned int tlb_invals = 0;
53 void tlb_map(uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
54 void tlb_map_mem(uint32_t, uint32_t, uint32_t);
58 booke_init_tlb(vm_paddr_t fdt_immr_pa)
61 /* Map register space */
62 tlb_map(APM86XXX_DEEP_SLEEP_VA,
63 OCP_ADDR_WORDLO(APM86XXX_DEEP_SLEEP_PA),
64 OCP_ADDR_WORDHI(APM86XXX_DEEP_SLEEP_PA), TLB_VALID | TLB_SIZE_16M,
65 TLB_SW | TLB_SR | TLB_I | TLB_G);
67 tlb_map(APM86XXX_CSR_VA, OCP_ADDR_WORDLO(APM86XXX_CSR_PA),
68 OCP_ADDR_WORDHI(APM86XXX_CSR_PA), TLB_VALID | TLB_SIZE_16M,
69 TLB_SW | TLB_SR | TLB_I | TLB_G);
71 tlb_map(APM86XXX_PRIMARY_FABRIC_VA,
72 OCP_ADDR_WORDLO(APM86XXX_PRIMARY_FABRIC_PA),
73 OCP_ADDR_WORDHI(APM86XXX_PRIMARY_FABRIC_PA),
74 TLB_VALID | TLB_SIZE_16M,
75 TLB_SW | TLB_SR | TLB_I | TLB_G);
77 tlb_map(APM86XXX_AHB_VA, OCP_ADDR_WORDLO(APM86XXX_AHB_PA),
78 OCP_ADDR_WORDHI(APM86XXX_AHB_PA),
79 TLB_VALID | TLB_SIZE_16M,
80 TLB_SW | TLB_SR | TLB_I | TLB_G);
82 /* Map MailBox space */
83 tlb_map(APM86XXX_MBOX_VA, OCP_ADDR_WORDLO(APM86XXX_MBOX_PA),
84 OCP_ADDR_WORDHI(APM86XXX_MBOX_PA),
85 TLB_VALID | TLB_SIZE_4K,
86 TLB_UX | TLB_UW | TLB_UR |
87 TLB_SX | TLB_SW | TLB_SR |
90 tlb_map(APM86XXX_MBOX_VA + 0x1000,
91 OCP_ADDR_WORDLO(APM86XXX_MBOX_PA) + 0x1000,
92 OCP_ADDR_WORDHI(APM86XXX_MBOX_PA),
93 TLB_VALID | TLB_SIZE_4K,
94 TLB_UX | TLB_UW | TLB_UR |
95 TLB_SX | TLB_SW | TLB_SR |
98 tlb_map(APM86XXX_MBOX_VA + 0x2000,
99 OCP_ADDR_WORDLO(APM86XXX_MBOX_PA)+ 0x2000,
100 OCP_ADDR_WORDHI(APM86XXX_MBOX_PA),
101 TLB_VALID | TLB_SIZE_4K,
102 TLB_UX | TLB_UW | TLB_UR |
103 TLB_SX | TLB_SW | TLB_SR |
108 booke_enable_l1_cache(void)
113 booke_enable_l2_cache(void)
118 booke_disable_l2_cache(void)
122 /* Disable L2 cache op broadcast */
123 ccr1 = mfspr(SPR_CCR1);
124 ccr1 &= ~CCR1_L2COBE;
125 mtspr(SPR_CCR1, ccr1);
127 /* Set L2 array size to 0 i.e. disable L2 cache */
128 mtdcr(DCR_L2DCDCRAI, DCR_L2CR0);
129 l2cr0 = mfdcr(DCR_L2DCDCRDI);
131 mtdcr(DCR_L2DCDCRDI, l2cr0);
134 void tlb_map(uint32_t epn, uint32_t rpn, uint32_t erpn, uint32_t flags,
138 tlb_write(++tlb_static_entries, epn, rpn, erpn, 0, flags, perms);
141 static void tlb_dump_entry(u_int entry)
143 uint32_t epn, rpn, erpn, tid, flags, perms;
146 tlb_read(entry, &epn, &rpn, &erpn, &tid, &flags, &perms);
148 switch (flags & TLB_SIZE_MASK) {
179 printf("TLB[%02u]: 0x%08X => "
180 "0x%01X_%08X %s %c %c %s %s %s %s %s "
181 "%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c (%u)\n",
182 entry, epn, erpn, rpn, size,
183 (flags & TLB_TS) ? '1' : '0',
184 (flags & TLB_VALID) ? 'V' : '.',
185 (perms & TLB_WL1) ? "WL1" : "___",
186 (perms & TLB_IL1I) ? "IL1I" : "____",
187 (perms & TLB_IL1D) ? "IL1D" : "____",
188 (perms & TLB_IL2I) ? "IL2I" : "____",
189 (perms & TLB_IL2D) ? "IL2D" : "____",
190 (perms & TLB_U0) ? '1' : '.',
191 (perms & TLB_U1) ? '2' : '.',
192 (perms & TLB_U2) ? '3' : '.',
193 (perms & TLB_U3) ? '4' : '.',
194 (perms & TLB_W) ? 'W' : '.',
195 (perms & TLB_I) ? 'I' : '.',
196 (perms & TLB_M) ? 'M' : '.',
197 (perms & TLB_G) ? 'G' : '.',
198 (perms & TLB_E) ? 'E' : '.',
199 (perms & TLB_UX) ? 'x' : '.',
200 (perms & TLB_UW) ? 'w' : '.',
201 (perms & TLB_UR) ? 'r' : '.',
202 (perms & TLB_SX) ? 'X' : '.',
203 (perms & TLB_SW) ? 'W' : '.',
204 (perms & TLB_SR) ? 'R' : '.',
212 for (i = 0; i < TLB_SIZE; i++)