Blackfin arch: SMP supporting patchset: Blackfin CPLB related code
[linux-2.6.git] / arch / blackfin / kernel / cplb-nompu / cplbinit.c
index 2debc900e246d2ae7d5fe81e55bf18b0437de4d3..8966c706b71a840ddca33a830dbb97c1334055c5 100644 (file)
 #include <asm/cplb.h>
 #include <asm/cplbinit.h>
 
-#define CPLB_MEM CONFIG_MAX_MEM_SIZE
-
-/*
-* Number of required data CPLB switchtable entries
-* MEMSIZE / 4 (we mostly install 4M page size CPLBs
-* approx 16 for smaller 1MB page size CPLBs for allignment purposes
-* 1 for L1 Data Memory
-* possibly 1 for L2 Data Memory
-* 1 for CONFIG_DEBUG_HUNT_FOR_ZERO
-* 1 for ASYNC Memory
-*/
-#define MAX_SWITCH_D_CPLBS (((CPLB_MEM / 4) + 16 + 1 + 1 + 1 \
-                                + ASYNC_MEMORY_CPLB_COVERAGE) * 2)
-
-/*
-* Number of required instruction CPLB switchtable entries
-* MEMSIZE / 4 (we mostly install 4M page size CPLBs
-* approx 12 for smaller 1MB page size CPLBs for allignment purposes
-* 1 for L1 Instruction Memory
-* possibly 1 for L2 Instruction Memory
-* 1 for CONFIG_DEBUG_HUNT_FOR_ZERO
-*/
-#define MAX_SWITCH_I_CPLBS (((CPLB_MEM / 4) + 12 + 1 + 1 + 1) * 2)
-
-
-u_long icplb_table[MAX_CPLBS + 1];
-u_long dcplb_table[MAX_CPLBS + 1];
+u_long icplb_tables[NR_CPUS][CPLB_TBL_ENTRIES+1];
+u_long dcplb_tables[NR_CPUS][CPLB_TBL_ENTRIES+1];
 
 #ifdef CONFIG_CPLB_SWITCH_TAB_L1
-# define PDT_ATTR __attribute__((l1_data))
+#define PDT_ATTR __attribute__((l1_data))
 #else
-# define PDT_ATTR
+#define PDT_ATTR
 #endif
 
-u_long ipdt_table[MAX_SWITCH_I_CPLBS + 1] PDT_ATTR;
-u_long dpdt_table[MAX_SWITCH_D_CPLBS + 1] PDT_ATTR;
-
+u_long ipdt_tables[NR_CPUS][MAX_SWITCH_I_CPLBS+1] PDT_ATTR;
+u_long dpdt_tables[NR_CPUS][MAX_SWITCH_D_CPLBS+1] PDT_ATTR;
 #ifdef CONFIG_CPLB_INFO
-u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS] PDT_ATTR;
-u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS] PDT_ATTR;
+u_long ipdt_swapcount_tables[NR_CPUS][MAX_SWITCH_I_CPLBS] PDT_ATTR;
+u_long dpdt_swapcount_tables[NR_CPUS][MAX_SWITCH_D_CPLBS] PDT_ATTR;
 #endif
 
 struct s_cplb {
@@ -93,8 +67,8 @@ static struct cplb_desc cplb_data[] = {
                .name = "Zero Pointer Guard Page",
        },
        {
-               .start = L1_CODE_START,
-               .end = L1_CODE_START + L1_CODE_LENGTH,
+               .start = 0,     /* dyanmic */
+               .end = 0,       /* dynamic */
                .psize = SIZE_4M,
                .attr = INITIAL_T | SWITCH_T | I_CPLB,
                .i_conf = L1_IMEMORY,
@@ -103,8 +77,8 @@ static struct cplb_desc cplb_data[] = {
                .name = "L1 I-Memory",
        },
        {
-               .start = L1_DATA_A_START,
-               .end = L1_DATA_B_START + L1_DATA_B_LENGTH,
+               .start = 0,     /* dynamic */
+               .end = 0,       /* dynamic */
                .psize = SIZE_4M,
                .attr = INITIAL_T | SWITCH_T | D_CPLB,
                .i_conf = 0,
@@ -116,6 +90,16 @@ static struct cplb_desc cplb_data[] = {
 #endif
                .name = "L1 D-Memory",
        },
+       {
+               .start = L2_START,
+               .end = L2_START + L2_LENGTH,
+               .psize = SIZE_1M,
+               .attr = L2_ATTR,
+               .i_conf = L2_IMEMORY,
+               .d_conf = L2_DMEMORY,
+               .valid = (L2_LENGTH > 0),
+               .name = "L2 Memory",
+       },
        {
                .start = 0,
                .end = 0,  /* dynamic */
@@ -164,16 +148,6 @@ static struct cplb_desc cplb_data[] = {
                .valid = 1,
                .name = "Asynchronous Memory Banks",
        },
-       {
-               .start = L2_START,
-               .end = L2_START + L2_LENGTH,
-               .psize = SIZE_1M,
-               .attr = SWITCH_T | I_CPLB | D_CPLB,
-               .i_conf = L2_IMEMORY,
-               .d_conf = L2_DMEMORY,
-               .valid = (L2_LENGTH > 0),
-               .name = "L2 Memory",
-       },
        {
                .start = BOOT_ROM_START,
                .end = BOOT_ROM_START + BOOT_ROM_LENGTH,
@@ -310,7 +284,7 @@ __fill_data_cplbtab(struct cplb_tab *t, int i, u32 a_start, u32 a_end)
        }
 }
 
-void __init generate_cplb_tables(void)
+void __init generate_cplb_tables_cpu(unsigned int cpu)
 {
 
        u16 i, j, process;
@@ -322,8 +296,8 @@ void __init generate_cplb_tables(void)
 
        printk(KERN_INFO "NOMPU: setting up cplb tables for global access\n");
 
-       cplb.init_i.size = MAX_CPLBS;
-       cplb.init_d.size = MAX_CPLBS;
+       cplb.init_i.size = CPLB_TBL_ENTRIES;
+       cplb.init_d.size = CPLB_TBL_ENTRIES;
        cplb.switch_i.size = MAX_SWITCH_I_CPLBS;
        cplb.switch_d.size = MAX_SWITCH_D_CPLBS;
 
@@ -332,11 +306,15 @@ void __init generate_cplb_tables(void)
        cplb.switch_i.pos = 0;
        cplb.switch_d.pos = 0;
 
-       cplb.init_i.tab = icplb_table;
-       cplb.init_d.tab = dcplb_table;
-       cplb.switch_i.tab = ipdt_table;
-       cplb.switch_d.tab = dpdt_table;
+       cplb.init_i.tab = icplb_tables[cpu];
+       cplb.init_d.tab = dcplb_tables[cpu];
+       cplb.switch_i.tab = ipdt_tables[cpu];
+       cplb.switch_d.tab = dpdt_tables[cpu];
 
+       cplb_data[L1I_MEM].start = get_l1_code_start_cpu(cpu);
+       cplb_data[L1I_MEM].end = cplb_data[L1I_MEM].start + L1_CODE_LENGTH;
+       cplb_data[L1D_MEM].start = get_l1_data_a_start_cpu(cpu);
+       cplb_data[L1D_MEM].end = get_l1_data_b_start_cpu(cpu) + L1_DATA_B_LENGTH;
        cplb_data[SDRAM_KERN].end = memory_end;
 
 #ifdef CONFIG_MTD_UCLINUX
@@ -459,6 +437,5 @@ void __init generate_cplb_tables(void)
        cplb.switch_d.tab[cplb.switch_d.pos] = -1;
 
 }
-
 #endif