Re: [PATCH 3/5] Blackfin arch: SMP supporting patchset: Blackfin CPLB related code

From: Bryan Wu
Date: Wed Nov 19 2008 - 02:46:21 EST

Cc, linux-arch
-Bryan

On Tue, Nov 18, 2008 at 5:05 PM, Bryan Wu <cooloney@xxxxxxxxxx> wrote:
> From: Graf Yang <graf.yang@xxxxxxxxxx>
>
> Blackfin dual core BF561 processor can support SMP like features.
> https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like
>
> In this patch, we provide SMP extend to Blackfin CPLB related code
>
> Signed-off-by: Graf Yang <graf.yang@xxxxxxxxxx>
> Signed-off-by: Bryan Wu <cooloney@xxxxxxxxxx>
> ---
> arch/blackfin/include/asm/cplb-mpu.h | 15 ++--
> arch/blackfin/include/asm/cplb.h | 21 +++---
> arch/blackfin/include/asm/cplbinit.h | 57 ++++++++++++---
> arch/blackfin/include/asm/mmu_context.h | 27 +++++--
> arch/blackfin/kernel/cplb-mpu/cacheinit.c | 4 +-
> arch/blackfin/kernel/cplb-mpu/cplbinfo.c | 43 +++++++----
> arch/blackfin/kernel/cplb-mpu/cplbinit.c | 43 ++++++------
> arch/blackfin/kernel/cplb-mpu/cplbmgr.c | 102 ++++++++++++++-------------
> arch/blackfin/kernel/cplb-nompu/cacheinit.c | 9 ++-
> arch/blackfin/kernel/cplb-nompu/cplbinfo.c | 55 +++++++++------
> arch/blackfin/kernel/cplb-nompu/cplbinit.c | 89 +++++++++---------------
> arch/blackfin/kernel/cplb-nompu/cplbmgr.S | 29 ++++----
> 12 files changed, 275 insertions(+), 219 deletions(-)
>
> diff --git a/arch/blackfin/include/asm/cplb-mpu.h b/arch/blackfin/include/asm/cplb-mpu.h
> index 75c67b9..80680ad 100644
> --- a/arch/blackfin/include/asm/cplb-mpu.h
> +++ b/arch/blackfin/include/asm/cplb-mpu.h
> @@ -28,6 +28,7 @@
> */
> #ifndef __ASM_BFIN_CPLB_MPU_H
> #define __ASM_BFIN_CPLB_MPU_H
> +#include <linux/threads.h>
>
> struct cplb_entry {
> unsigned long data, addr;
> @@ -39,22 +40,22 @@ struct mem_region {
> unsigned long icplb_data;
> };
>
> -extern struct cplb_entry dcplb_tbl[MAX_CPLBS];
> -extern struct cplb_entry icplb_tbl[MAX_CPLBS];
> +extern struct cplb_entry dcplb_tbl[NR_CPUS][MAX_CPLBS];
> +extern struct cplb_entry icplb_tbl[NR_CPUS][MAX_CPLBS];
> extern int first_switched_icplb;
> extern int first_mask_dcplb;
> extern int first_switched_dcplb;
>
> -extern int nr_dcplb_miss, nr_icplb_miss, nr_icplb_supv_miss, nr_dcplb_prot;
> -extern int nr_cplb_flush;
> +extern int nr_dcplb_miss[], nr_icplb_miss[], nr_icplb_supv_miss[];
> +extern int nr_dcplb_prot[], nr_cplb_flush[];
>
> extern int page_mask_order;
> extern int page_mask_nelts;
>
> -extern unsigned long *current_rwx_mask;
> +extern unsigned long *current_rwx_mask[NR_CPUS];
>
> -extern void flush_switched_cplbs(void);
> -extern void set_mask_dcplbs(unsigned long *);
> +extern void flush_switched_cplbs(unsigned int);
> +extern void set_mask_dcplbs(unsigned long *, unsigned int);
>
> extern void __noreturn panic_cplb_error(int seqstat, struct pt_regs *);
>
> diff --git a/arch/blackfin/include/asm/cplb.h b/arch/blackfin/include/asm/cplb.h
> index 9e8b403..5f7545d 100644
> --- a/arch/blackfin/include/asm/cplb.h
> +++ b/arch/blackfin/include/asm/cplb.h
> @@ -30,7 +30,6 @@
> #ifndef _CPLB_H
> #define _CPLB_H
>
> -#include <asm/blackfin.h>
> #include <mach/anomaly.h>
>
> #define SDRAM_IGENERIC (CPLB_L1_CHBL | CPLB_USER_RD | CPLB_VALID | CPLB_PORTPRIO)
> @@ -55,13 +54,24 @@
> #endif
>
> #define L1_DMEMORY (CPLB_LOCK | CPLB_COMMON)
> +
> +#ifdef CONFIG_SMP
> +#define L2_ATTR (INITIAL_T | I_CPLB | D_CPLB)
> +#define L2_IMEMORY (CPLB_COMMON | CPLB_LOCK)
> +#define L2_DMEMORY (CPLB_COMMON | CPLB_LOCK)
> +
> +#else
> #ifdef CONFIG_BFIN_L2_CACHEABLE
> #define L2_IMEMORY (SDRAM_IGENERIC)
> #define L2_DMEMORY (SDRAM_DGENERIC)
> #else
> #define L2_IMEMORY (CPLB_COMMON)
> #define L2_DMEMORY (CPLB_COMMON)
> -#endif
> +#endif /* CONFIG_BFIN_L2_CACHEABLE */
> +
> +#define L2_ATTR (INITIAL_T | SWITCH_T | I_CPLB | D_CPLB)
> +#endif /* CONFIG_SMP */
> +
> #define SDRAM_DNON_CHBL (CPLB_COMMON)
> #define SDRAM_EBIU (CPLB_COMMON)
> #define SDRAM_OOPS (CPLB_VALID | ANOMALY_05000158_WORKAROUND | CPLB_LOCK | CPLB_DIRTY)
> @@ -71,14 +81,7 @@
> #define SIZE_1M 0x00100000 /* 1M */
> #define SIZE_4M 0x00400000 /* 4M */
>
> -#ifdef CONFIG_MPU
> #define MAX_CPLBS 16
> -#else
> -#define MAX_CPLBS (16 * 2)
> -#endif
> -
> -#define ASYNC_MEMORY_CPLB_COVERAGE ((ASYNC_BANK0_SIZE + ASYNC_BANK1_SIZE + \
> - ASYNC_BANK2_SIZE + ASYNC_BANK3_SIZE) / SIZE_4M)
>
> #define CPLB_ENABLE_ICACHE_P 0
> #define CPLB_ENABLE_DCACHE_P 1
> diff --git a/arch/blackfin/include/asm/cplbinit.h b/arch/blackfin/include/asm/cplbinit.h
> index f845b41..6bfc257 100644
> --- a/arch/blackfin/include/asm/cplbinit.h
> +++ b/arch/blackfin/include/asm/cplbinit.h
> @@ -36,6 +36,8 @@
> #ifdef CONFIG_MPU
>
> #include <asm/cplb-mpu.h>
> +extern void bfin_icache_init(struct cplb_entry *icplb_tbl);
> +extern void bfin_dcache_init(struct cplb_entry *icplb_tbl);
>
> #else
>
> @@ -46,8 +48,40 @@
>
> #define IN_KERNEL 1
>
> -enum
> -{ZERO_P, L1I_MEM, L1D_MEM, SDRAM_KERN , SDRAM_RAM_MTD, SDRAM_DMAZ, RES_MEM, ASYNC_MEM, L2_MEM};
> +#define ASYNC_MEMORY_CPLB_COVERAGE ((ASYNC_BANK0_SIZE + ASYNC_BANK1_SIZE + \
> + ASYNC_BANK2_SIZE + ASYNC_BANK3_SIZE) / SIZE_4M)
> +
> +#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)
> +
> +/* Number of CPLB table entries, used for cplb-nompu. */
> +#define CPLB_TBL_ENTRIES (16 * 4)
> +
> +enum {
> + ZERO_P, L1I_MEM, L1D_MEM, L2_MEM, SDRAM_KERN, SDRAM_RAM_MTD, SDRAM_DMAZ,
> + RES_MEM, ASYNC_MEM, OCB_ROM
> +};
>
> struct cplb_desc {
> u32 start; /* start address */
> @@ -66,8 +100,8 @@ struct cplb_tab {
> u16 size;
> };
>
> -extern u_long icplb_table[];
> -extern u_long dcplb_table[];
> +extern u_long icplb_tables[NR_CPUS][CPLB_TBL_ENTRIES+1];
> +extern u_long dcplb_tables[NR_CPUS][CPLB_TBL_ENTRIES+1];
>
> /* Till here we are discussing about the static memory management model.
> * However, the operating envoronments commonly define more CPLB
> @@ -78,15 +112,18 @@ extern u_long dcplb_table[];
> * This is how Page descriptor Table is implemented in uClinux/Blackfin.
> */
>
> -extern u_long ipdt_table[];
> -extern u_long dpdt_table[];
> +extern u_long ipdt_tables[NR_CPUS][MAX_SWITCH_I_CPLBS+1];
> +extern u_long dpdt_tables[NR_CPUS][MAX_SWITCH_D_CPLBS+1];
> #ifdef CONFIG_CPLB_INFO
> -extern u_long ipdt_swapcount_table[];
> -extern u_long dpdt_swapcount_table[];
> +extern u_long ipdt_swapcount_tables[NR_CPUS][MAX_SWITCH_I_CPLBS];
> +extern u_long dpdt_swapcount_tables[NR_CPUS][MAX_SWITCH_D_CPLBS];
> #endif
> +extern void bfin_icache_init(u_long icplbs[]);
> +extern void bfin_dcache_init(u_long dcplbs[]);
>
> #endif /* CONFIG_MPU */
>
> -extern void generate_cplb_tables(void);
> -
> +#if defined(CONFIG_BFIN_DCACHE) || defined(CONFIG_BFIN_ICACHE)
> +extern void generate_cplb_tables_cpu(unsigned int cpu);
> +#endif
> #endif
> diff --git a/arch/blackfin/include/asm/mmu_context.h b/arch/blackfin/include/asm/mmu_context.h
> index 35593dd..944e29f 100644
> --- a/arch/blackfin/include/asm/mmu_context.h
> +++ b/arch/blackfin/include/asm/mmu_context.h
> @@ -37,6 +37,10 @@
> #include <asm/pgalloc.h>
> #include <asm/cplbinit.h>
>
> +/* Note: L1 stacks are CPU-private things, so we bluntly disable this
> + feature in SMP mode, and use the per-CPU scratch SRAM bank only to
> + store the PDA instead. */
> +
> extern void *current_l1_stack_save;
> extern int nr_l1stack_tasks;
> extern void *l1_stack_base;
> @@ -88,12 +92,15 @@ activate_l1stack(struct mm_struct *mm, unsigned long sp_base)
> static inline void switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm,
> struct task_struct *tsk)
> {
> +#ifdef CONFIG_MPU
> + unsigned int cpu = smp_processor_id();
> +#endif
> if (prev_mm == next_mm)
> return;
> #ifdef CONFIG_MPU
> - if (prev_mm->context.page_rwx_mask == current_rwx_mask) {
> - flush_switched_cplbs();
> - set_mask_dcplbs(next_mm->context.page_rwx_mask);
> + if (prev_mm->context.page_rwx_mask == current_rwx_mask[cpu]) {
> + flush_switched_cplbs(cpu);
> + set_mask_dcplbs(next_mm->context.page_rwx_mask, cpu);
> }
> #endif
>
> @@ -138,9 +145,10 @@ static inline void protect_page(struct mm_struct *mm, unsigned long addr,
>
> static inline void update_protections(struct mm_struct *mm)
> {
> - if (mm->context.page_rwx_mask == current_rwx_mask) {
> - flush_switched_cplbs();
> - set_mask_dcplbs(mm->context.page_rwx_mask);
> + unsigned int cpu = smp_processor_id();
> + if (mm->context.page_rwx_mask == current_rwx_mask[cpu]) {
> + flush_switched_cplbs(cpu);
> + set_mask_dcplbs(mm->context.page_rwx_mask, cpu);
> }
> }
> #endif
> @@ -165,6 +173,9 @@ init_new_context(struct task_struct *tsk, struct mm_struct *mm)
> static inline void destroy_context(struct mm_struct *mm)
> {
> struct sram_list_struct *tmp;
> +#ifdef CONFIG_MPU
> + unsigned int cpu = smp_processor_id();
> +#endif
>
> #ifdef CONFIG_APP_STACK_L1
> if (current_l1_stack_save == mm->context.l1_stack_save)
> @@ -179,8 +190,8 @@ static inline void destroy_context(struct mm_struct *mm)
> kfree(tmp);
> }
> #ifdef CONFIG_MPU
> - if (current_rwx_mask == mm->context.page_rwx_mask)
> - current_rwx_mask = NULL;
> + if (current_rwx_mask[cpu] == mm->context.page_rwx_mask)
> + current_rwx_mask[cpu] = NULL;
> free_pages((unsigned long)mm->context.page_rwx_mask, page_mask_order);
> #endif
> }
> diff --git a/arch/blackfin/kernel/cplb-mpu/cacheinit.c b/arch/blackfin/kernel/cplb-mpu/cacheinit.c
> index a8b712a..c6ff947 100644
> --- a/arch/blackfin/kernel/cplb-mpu/cacheinit.c
> +++ b/arch/blackfin/kernel/cplb-mpu/cacheinit.c
> @@ -25,7 +25,7 @@
> #include <asm/cplbinit.h>
>
> #if defined(CONFIG_BFIN_ICACHE)
> -void __init bfin_icache_init(void)
> +void __cpuinit bfin_icache_init(struct cplb_entry *icplb_tbl)
> {
> unsigned long ctrl;
> int i;
> @@ -43,7 +43,7 @@ void __init bfin_icache_init(void)
> #endif
>
> #if defined(CONFIG_BFIN_DCACHE)
> -void __init bfin_dcache_init(void)
> +void __cpuinit bfin_dcache_init(struct cplb_entry *dcplb_tbl)
> {
> unsigned long ctrl;
> int i;
> diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinfo.c b/arch/blackfin/kernel/cplb-mpu/cplbinfo.c
> index 822beef..00cb2cf 100644
> --- a/arch/blackfin/kernel/cplb-mpu/cplbinfo.c
> +++ b/arch/blackfin/kernel/cplb-mpu/cplbinfo.c
> @@ -66,32 +66,32 @@ static char *cplb_print_entry(char *buf, struct cplb_entry *tbl, int switched)
> return buf;
> }
>
> -int cplbinfo_proc_output(char *buf)
> +int cplbinfo_proc_output(char *buf, void *data)
> {
> char *p;
> + unsigned int cpu = (unsigned int)data;;
>
> p = buf;
>
> - p += sprintf(p, "------------------ CPLB Information ------------------\n\n");
> -
> + p += sprintf(p, "------------- CPLB Information on CPU%u --------------\n\n", cpu);
> if (bfin_read_IMEM_CONTROL() & ENICPLB) {
> p += sprintf(p, "Instruction CPLB entry:\n");
> - p = cplb_print_entry(p, icplb_tbl, first_switched_icplb);
> + p = cplb_print_entry(p, icplb_tbl[cpu], first_switched_icplb);
> } else
> p += sprintf(p, "Instruction CPLB is disabled.\n\n");
>
> if (1 || bfin_read_DMEM_CONTROL() & ENDCPLB) {
> p += sprintf(p, "Data CPLB entry:\n");
> - p = cplb_print_entry(p, dcplb_tbl, first_switched_dcplb);
> + p = cplb_print_entry(p, dcplb_tbl[cpu], first_switched_dcplb);
> } else
> p += sprintf(p, "Data CPLB is disabled.\n");
>
> p += sprintf(p, "ICPLB miss: %d\nICPLB supervisor miss: %d\n",
> - nr_icplb_miss, nr_icplb_supv_miss);
> + nr_icplb_miss[cpu], nr_icplb_supv_miss[cpu]);
> p += sprintf(p, "DCPLB miss: %d\nDCPLB protection fault:%d\n",
> - nr_dcplb_miss, nr_dcplb_prot);
> + nr_dcplb_miss[cpu], nr_dcplb_prot[cpu]);
> p += sprintf(p, "CPLB flushes: %d\n",
> - nr_cplb_flush);
> + nr_cplb_flush[cpu]);
>
> return p - buf;
> }
> @@ -101,7 +101,7 @@ static int cplbinfo_read_proc(char *page, char **start, off_t off,
> {
> int len;
>
> - len = cplbinfo_proc_output(page);
> + len = cplbinfo_proc_output(page, data);
> if (len <= off + count)
> *eof = 1;
> *start = page + off;
> @@ -115,20 +115,33 @@ static int cplbinfo_read_proc(char *page, char **start, off_t off,
>
> static int __init cplbinfo_init(void)
> {
> - struct proc_dir_entry *entry;
> + struct proc_dir_entry *parent, *entry;
> + unsigned int cpu;
> + unsigned char str[10];
> +
> + parent = proc_mkdir("cplbinfo", NULL);
>
> - entry = create_proc_entry("cplbinfo", 0, NULL);
> - if (!entry)
> - return -ENOMEM;
> + for_each_online_cpu(cpu) {
> + sprintf(str, "cpu%u", cpu);
> + entry = create_proc_entry(str, 0, parent);
> + if (!entry)
> + return -ENOMEM;
>
> - entry->read_proc = cplbinfo_read_proc;
> - entry->data = NULL;
> + entry->read_proc = cplbinfo_read_proc;
> + entry->data = (void *)cpu;
> + }
>
> return 0;
> }
>
> static void __exit cplbinfo_exit(void)
> {
> + unsigned int cpu;
> + unsigned char str[20];
> + for_each_online_cpu(cpu) {
> + sprintf(str, "cplbinfo/cpu%u", cpu);
> + remove_proc_entry(str, NULL);
> + }
> remove_proc_entry("cplbinfo", NULL);
> }
>
> diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
> index 55af729..269d2a3 100644
> --- a/arch/blackfin/kernel/cplb-mpu/cplbinit.c
> +++ b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
> @@ -30,13 +30,13 @@
> # error the MPU will not function safely while Anomaly 05000263 applies
> #endif
>
> -struct cplb_entry icplb_tbl[MAX_CPLBS];
> -struct cplb_entry dcplb_tbl[MAX_CPLBS];
> +struct cplb_entry icplb_tbl[NR_CPUS][MAX_CPLBS];
> +struct cplb_entry dcplb_tbl[NR_CPUS][MAX_CPLBS];
>
> int first_switched_icplb, first_switched_dcplb;
> int first_mask_dcplb;
>
> -void __init generate_cplb_tables(void)
> +void __init generate_cplb_tables_cpu(unsigned int cpu)
> {
> int i_d, i_i;
> unsigned long addr;
> @@ -55,15 +55,16 @@ void __init generate_cplb_tables(void)
> d_cache |= CPLB_L1_AOW | CPLB_WT;
> #endif
> #endif
> +
> i_d = i_i = 0;
>
> /* Set up the zero page. */
> - dcplb_tbl[i_d].addr = 0;
> - dcplb_tbl[i_d++].data = SDRAM_OOPS | PAGE_SIZE_1KB;
> + dcplb_tbl[cpu][i_d].addr = 0;
> + dcplb_tbl[cpu][i_d++].data = SDRAM_OOPS | PAGE_SIZE_1KB;
>
> #if 0
> - icplb_tbl[i_i].addr = 0;
> - icplb_tbl[i_i++].data = i_cache | CPLB_USER_RD | PAGE_SIZE_4KB;
> + icplb_tbl[cpu][i_i].addr = 0;
> + icplb_tbl[cpu][i_i++].data = i_cache | CPLB_USER_RD | PAGE_SIZE_4KB;
> #endif
>
> /* Cover kernel memory with 4M pages. */
> @@ -72,28 +73,28 @@ void __init generate_cplb_tables(void)
> i_data = i_cache | CPLB_VALID | CPLB_PORTPRIO | PAGE_SIZE_4MB;
>
> for (; addr < memory_start; addr += 4 * 1024 * 1024) {
> - dcplb_tbl[i_d].addr = addr;
> - dcplb_tbl[i_d++].data = d_data;
> - icplb_tbl[i_i].addr = addr;
> - icplb_tbl[i_i++].data = i_data | (addr == 0 ? CPLB_USER_RD : 0);
> + dcplb_tbl[cpu][i_d].addr = addr;
> + dcplb_tbl[cpu][i_d++].data = d_data;
> + icplb_tbl[cpu][i_i].addr = addr;
> + icplb_tbl[cpu][i_i++].data = i_data | (addr == 0 ? CPLB_USER_RD : 0);
> }
>
> /* Cover L1 memory. One 4M area for code and data each is enough. */
> #if L1_DATA_A_LENGTH > 0 || L1_DATA_B_LENGTH > 0
> - dcplb_tbl[i_d].addr = L1_DATA_A_START;
> - dcplb_tbl[i_d++].data = L1_DMEMORY | PAGE_SIZE_4MB;
> + dcplb_tbl[cpu][i_d].addr = get_l1_data_a_start_cpu(cpu);
> + dcplb_tbl[cpu][i_d++].data = L1_DMEMORY | PAGE_SIZE_4MB;
> #endif
> #if L1_CODE_LENGTH > 0
> - icplb_tbl[i_i].addr = L1_CODE_START;
> - icplb_tbl[i_i++].data = L1_IMEMORY | PAGE_SIZE_4MB;
> + icplb_tbl[cpu][i_i].addr = get_l1_code_start_cpu(cpu);
> + icplb_tbl[cpu][i_i++].data = L1_IMEMORY | PAGE_SIZE_4MB;
> #endif
>
> /* Cover L2 memory */
> #if L2_LENGTH > 0
> - dcplb_tbl[i_d].addr = L2_START;
> - dcplb_tbl[i_d++].data = L2_DMEMORY | PAGE_SIZE_1MB;
> - icplb_tbl[i_i].addr = L2_START;
> - icplb_tbl[i_i++].data = L2_IMEMORY | PAGE_SIZE_1MB;
> + dcplb_tbl[cpu][i_d].addr = L2_START;
> + dcplb_tbl[cpu][i_d++].data = L2_DMEMORY | PAGE_SIZE_1MB;
> + icplb_tbl[cpu][i_i].addr = L2_START;
> + icplb_tbl[cpu][i_i++].data = L2_IMEMORY | PAGE_SIZE_1MB;
> #endif
>
> first_mask_dcplb = i_d;
> @@ -101,7 +102,7 @@ void __init generate_cplb_tables(void)
> first_switched_icplb = i_i;
>
> while (i_d < MAX_CPLBS)
> - dcplb_tbl[i_d++].data = 0;
> + dcplb_tbl[cpu][i_d++].data = 0;
> while (i_i < MAX_CPLBS)
> - icplb_tbl[i_i++].data = 0;
> + icplb_tbl[cpu][i_i++].data = 0;
> }
> diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
> index baa52e2..76bd991 100644
> --- a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
> +++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
> @@ -30,10 +30,11 @@
>
> int page_mask_nelts;
> int page_mask_order;
> -unsigned long *current_rwx_mask;
> +unsigned long *current_rwx_mask[NR_CPUS];
>
> -int nr_dcplb_miss, nr_icplb_miss, nr_icplb_supv_miss, nr_dcplb_prot;
> -int nr_cplb_flush;
> +int nr_dcplb_miss[NR_CPUS], nr_icplb_miss[NR_CPUS];
> +int nr_icplb_supv_miss[NR_CPUS], nr_dcplb_prot[NR_CPUS];
> +int nr_cplb_flush[NR_CPUS];
>
> static inline void disable_dcplb(void)
> {
> @@ -98,42 +99,42 @@ static inline int write_permitted(int status, unsigned long data)
> }
>
> /* Counters to implement round-robin replacement. */
> -static int icplb_rr_index, dcplb_rr_index;
> +static int icplb_rr_index[NR_CPUS], dcplb_rr_index[NR_CPUS];
>
> /*
> * Find an ICPLB entry to be evicted and return its index.
> */
> -static int evict_one_icplb(void)
> +static int evict_one_icplb(unsigned int cpu)
> {
> int i;
> for (i = first_switched_icplb; i < MAX_CPLBS; i++)
> - if ((icplb_tbl[i].data & CPLB_VALID) == 0)
> + if ((icplb_tbl[cpu][i].data & CPLB_VALID) == 0)
> return i;
> - i = first_switched_icplb + icplb_rr_index;
> + i = first_switched_icplb + icplb_rr_index[cpu];
> if (i >= MAX_CPLBS) {
> i -= MAX_CPLBS - first_switched_icplb;
> - icplb_rr_index -= MAX_CPLBS - first_switched_icplb;
> + icplb_rr_index[cpu] -= MAX_CPLBS - first_switched_icplb;
> }
> - icplb_rr_index++;
> + icplb_rr_index[cpu]++;
> return i;
> }
>
> -static int evict_one_dcplb(void)
> +static int evict_one_dcplb(unsigned int cpu)
> {
> int i;
> for (i = first_switched_dcplb; i < MAX_CPLBS; i++)
> - if ((dcplb_tbl[i].data & CPLB_VALID) == 0)
> + if ((dcplb_tbl[cpu][i].data & CPLB_VALID) == 0)
> return i;
> - i = first_switched_dcplb + dcplb_rr_index;
> + i = first_switched_dcplb + dcplb_rr_index[cpu];
> if (i >= MAX_CPLBS) {
> i -= MAX_CPLBS - first_switched_dcplb;
> - dcplb_rr_index -= MAX_CPLBS - first_switched_dcplb;
> + dcplb_rr_index[cpu] -= MAX_CPLBS - first_switched_dcplb;
> }
> - dcplb_rr_index++;
> + dcplb_rr_index[cpu]++;
> return i;
> }
>
> -static noinline int dcplb_miss(void)
> +static noinline int dcplb_miss(unsigned int cpu)
> {
> unsigned long addr = bfin_read_DCPLB_FAULT_ADDR();
> int status = bfin_read_DCPLB_STATUS();
> @@ -141,7 +142,7 @@ static noinline int dcplb_miss(void)
> int idx;
> unsigned long d_data;
>
> - nr_dcplb_miss++;
> + nr_dcplb_miss[cpu]++;
>
> d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB;
> #ifdef CONFIG_BFIN_DCACHE
> @@ -168,25 +169,25 @@ static noinline int dcplb_miss(void)
> } else if (addr >= _ramend) {
> d_data |= CPLB_USER_RD | CPLB_USER_WR;
> } else {
> - mask = current_rwx_mask;
> + mask = current_rwx_mask[cpu];
> if (mask) {
> int page = addr >> PAGE_SHIFT;
> - int offs = page >> 5;
> + int idx = page >> 5;
> int bit = 1 << (page & 31);
>
> - if (mask[offs] & bit)
> + if (mask[idx] & bit)
> d_data |= CPLB_USER_RD;
>
> mask += page_mask_nelts;
> - if (mask[offs] & bit)
> + if (mask[idx] & bit)
> d_data |= CPLB_USER_WR;
> }
> }
> - idx = evict_one_dcplb();
> + idx = evict_one_dcplb(cpu);
>
> addr &= PAGE_MASK;
> - dcplb_tbl[idx].addr = addr;
> - dcplb_tbl[idx].data = d_data;
> + dcplb_tbl[cpu][idx].addr = addr;
> + dcplb_tbl[cpu][idx].data = d_data;
>
> disable_dcplb();
> bfin_write32(DCPLB_DATA0 + idx * 4, d_data);
> @@ -196,21 +197,21 @@ static noinline int dcplb_miss(void)
> return 0;
> }
>
> -static noinline int icplb_miss(void)
> +static noinline int icplb_miss(unsigned int cpu)
> {
> unsigned long addr = bfin_read_ICPLB_FAULT_ADDR();
> int status = bfin_read_ICPLB_STATUS();
> int idx;
> unsigned long i_data;
>
> - nr_icplb_miss++;
> + nr_icplb_miss[cpu]++;
>
> /* If inside the uncached DMA region, fault. */
> if (addr >= _ramend - DMA_UNCACHED_REGION && addr < _ramend)
> return CPLB_PROT_VIOL;
>
> if (status & FAULT_USERSUPV)
> - nr_icplb_supv_miss++;
> + nr_icplb_supv_miss[cpu]++;
>
> /*
> * First, try to find a CPLB that matches this address. If we
> @@ -218,8 +219,8 @@ static noinline int icplb_miss(void)
> * that the instruction crosses a page boundary.
> */
> for (idx = first_switched_icplb; idx < MAX_CPLBS; idx++) {
> - if (icplb_tbl[idx].data & CPLB_VALID) {
> - unsigned long this_addr = icplb_tbl[idx].addr;
> + if (icplb_tbl[cpu][idx].data & CPLB_VALID) {
> + unsigned long this_addr = icplb_tbl[cpu][idx].addr;
> if (this_addr <= addr && this_addr + PAGE_SIZE > addr) {
> addr += PAGE_SIZE;
> break;
> @@ -257,23 +258,23 @@ static noinline int icplb_miss(void)
> * Otherwise, check the x bitmap of the current process.
> */
> if (!(status & FAULT_USERSUPV)) {
> - unsigned long *mask = current_rwx_mask;
> + unsigned long *mask = current_rwx_mask[cpu];
>
> if (mask) {
> int page = addr >> PAGE_SHIFT;
> - int offs = page >> 5;
> + int idx = page >> 5;
> int bit = 1 << (page & 31);
>
> mask += 2 * page_mask_nelts;
> - if (mask[offs] & bit)
> + if (mask[idx] & bit)
> i_data |= CPLB_USER_RD;
> }
> }
> }
> - idx = evict_one_icplb();
> + idx = evict_one_icplb(cpu);
> addr &= PAGE_MASK;
> - icplb_tbl[idx].addr = addr;
> - icplb_tbl[idx].data = i_data;
> + icplb_tbl[cpu][idx].addr = addr;
> + icplb_tbl[cpu][idx].data = i_data;
>
> disable_icplb();
> bfin_write32(ICPLB_DATA0 + idx * 4, i_data);
> @@ -283,19 +284,19 @@ static noinline int icplb_miss(void)
> return 0;
> }
>
> -static noinline int dcplb_protection_fault(void)
> +static noinline int dcplb_protection_fault(unsigned int cpu)
> {
> int status = bfin_read_DCPLB_STATUS();
>
> - nr_dcplb_prot++;
> + nr_dcplb_prot[cpu]++;
>
> if (status & FAULT_RW) {
> int idx = faulting_cplb_index(status);
> - unsigned long data = dcplb_tbl[idx].data;
> + unsigned long data = dcplb_tbl[cpu][idx].data;
> if (!(data & CPLB_WT) && !(data & CPLB_DIRTY) &&
> write_permitted(status, data)) {
> data |= CPLB_DIRTY;
> - dcplb_tbl[idx].data = data;
> + dcplb_tbl[cpu][idx].data = data;
> bfin_write32(DCPLB_DATA0 + idx * 4, data);
> return 0;
> }
> @@ -306,36 +307,37 @@ static noinline int dcplb_protection_fault(void)
> int cplb_hdr(int seqstat, struct pt_regs *regs)
> {
> int cause = seqstat & 0x3f;
> + unsigned int cpu = smp_processor_id();
> switch (cause) {
> case 0x23:
> - return dcplb_protection_fault();
> + return dcplb_protection_fault(cpu);
> case 0x2C:
> - return icplb_miss();
> + return icplb_miss(cpu);
> case 0x26:
> - return dcplb_miss();
> + return dcplb_miss(cpu);
> default:
> return 1;
> }
> }
>
> -void flush_switched_cplbs(void)
> +void flush_switched_cplbs(unsigned int cpu)
> {
> int i;
> unsigned long flags;
>
> - nr_cplb_flush++;
> + nr_cplb_flush[cpu]++;
>
> local_irq_save(flags);
> disable_icplb();
> for (i = first_switched_icplb; i < MAX_CPLBS; i++) {
> - icplb_tbl[i].data = 0;
> + icplb_tbl[cpu][i].data = 0;
> bfin_write32(ICPLB_DATA0 + i * 4, 0);
> }
> enable_icplb();
>
> disable_dcplb();
> for (i = first_switched_dcplb; i < MAX_CPLBS; i++) {
> - dcplb_tbl[i].data = 0;
> + dcplb_tbl[cpu][i].data = 0;
> bfin_write32(DCPLB_DATA0 + i * 4, 0);
> }
> enable_dcplb();
> @@ -343,7 +345,7 @@ void flush_switched_cplbs(void)
>
> }
>
> -void set_mask_dcplbs(unsigned long *masks)
> +void set_mask_dcplbs(unsigned long *masks, unsigned int cpu)
> {
> int i;
> unsigned long addr = (unsigned long)masks;
> @@ -351,12 +353,12 @@ void set_mask_dcplbs(unsigned long *masks)
> unsigned long flags;
>
> if (!masks) {
> - current_rwx_mask = masks;
> + current_rwx_mask[cpu] = masks;
> return;
> }
>
> local_irq_save(flags);
> - current_rwx_mask = masks;
> + current_rwx_mask[cpu] = masks;
>
> d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB;
> #ifdef CONFIG_BFIN_DCACHE
> @@ -368,8 +370,8 @@ void set_mask_dcplbs(unsigned long *masks)
>
> disable_dcplb();
> for (i = first_mask_dcplb; i < first_switched_dcplb; i++) {
> - dcplb_tbl[i].addr = addr;
> - dcplb_tbl[i].data = d_data;
> + dcplb_tbl[cpu][i].addr = addr;
> + dcplb_tbl[cpu][i].data = d_data;
> bfin_write32(DCPLB_DATA0 + i * 4, d_data);
> bfin_write32(DCPLB_ADDR0 + i * 4, addr);
> addr += PAGE_SIZE;
> diff --git a/arch/blackfin/kernel/cplb-nompu/cacheinit.c b/arch/blackfin/kernel/cplb-nompu/cacheinit.c
> index bd08315..3a385ae 100644
> --- a/arch/blackfin/kernel/cplb-nompu/cacheinit.c
> +++ b/arch/blackfin/kernel/cplb-nompu/cacheinit.c
> @@ -25,9 +25,9 @@
> #include <asm/cplbinit.h>
>
> #if defined(CONFIG_BFIN_ICACHE)
> -void __init bfin_icache_init(void)
> +void __cpuinit bfin_icache_init(u_long icplb[])
> {
> - unsigned long *table = icplb_table;
> + unsigned long *table = icplb;
> unsigned long ctrl;
> int i;
>
> @@ -47,9 +47,9 @@ void __init bfin_icache_init(void)
> #endif
>
> #if defined(CONFIG_BFIN_DCACHE)
> -void __init bfin_dcache_init(void)
> +void __cpuinit bfin_dcache_init(u_long dcplb[])
> {
> - unsigned long *table = dcplb_table;
> + unsigned long *table = dcplb;
> unsigned long ctrl;
> int i;
>
> @@ -64,6 +64,7 @@ void __init bfin_dcache_init(void)
> ctrl = bfin_read_DMEM_CONTROL();
> ctrl |= DMEM_CNTR;
> bfin_write_DMEM_CONTROL(ctrl);
> +
> SSYNC();
> }
> #endif
> diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinfo.c b/arch/blackfin/kernel/cplb-nompu/cplbinfo.c
> index 1e74f0b..3f00809 100644
> --- a/arch/blackfin/kernel/cplb-nompu/cplbinfo.c
> +++ b/arch/blackfin/kernel/cplb-nompu/cplbinfo.c
> @@ -68,22 +68,22 @@ static int cplb_find_entry(unsigned long *cplb_addr,
> return -1;
> }
>
> -static char *cplb_print_entry(char *buf, int type)
> +static char *cplb_print_entry(char *buf, int type, unsigned int cpu)
> {
> - unsigned long *p_addr = dpdt_table;
> - unsigned long *p_data = dpdt_table + 1;
> - unsigned long *p_icount = dpdt_swapcount_table;
> - unsigned long *p_ocount = dpdt_swapcount_table + 1;
> + unsigned long *p_addr = dpdt_tables[cpu];
> + unsigned long *p_data = dpdt_tables[cpu] + 1;
> + unsigned long *p_icount = dpdt_swapcount_tables[cpu];
> + unsigned long *p_ocount = dpdt_swapcount_tables[cpu] + 1;
> unsigned long *cplb_addr = (unsigned long *)DCPLB_ADDR0;
> unsigned long *cplb_data = (unsigned long *)DCPLB_DATA0;
> int entry = 0, used_cplb = 0;
>
> if (type == CPLB_I) {
> buf += sprintf(buf, "Instruction CPLB entry:\n");
> - p_addr = ipdt_table;
> - p_data = ipdt_table + 1;
> - p_icount = ipdt_swapcount_table;
> - p_ocount = ipdt_swapcount_table + 1;
> + p_addr = ipdt_tables[cpu];
> + p_data = ipdt_tables[cpu] + 1;
> + p_icount = ipdt_swapcount_tables[cpu];
> + p_ocount = ipdt_swapcount_tables[cpu] + 1;
> cplb_addr = (unsigned long *)ICPLB_ADDR0;
> cplb_data = (unsigned long *)ICPLB_DATA0;
> } else
> @@ -134,24 +134,24 @@ static char *cplb_print_entry(char *buf, int type)
> return buf;
> }
>
> -static int cplbinfo_proc_output(char *buf)
> +static int cplbinfo_proc_output(char *buf, void *data)
> {
> + unsigned int cpu = (unsigned int)data;
> char *p;
>
> p = buf;
>
> - p += sprintf(p, "------------------ CPLB Information ------------------\n\n");
> + p += sprintf(p, "------------- CPLB Information on CPU%u--------------\n\n", cpu);
>
> if (bfin_read_IMEM_CONTROL() & ENICPLB)
> - p = cplb_print_entry(p, CPLB_I);
> + p = cplb_print_entry(p, CPLB_I, cpu);
> else
> p += sprintf(p, "Instruction CPLB is disabled.\n\n");
>
> if (bfin_read_DMEM_CONTROL() & ENDCPLB)
> - p = cplb_print_entry(p, CPLB_D);
> + p = cplb_print_entry(p, CPLB_D, cpu);
> else
> p += sprintf(p, "Data CPLB is disabled.\n");
> -
> return p - buf;
> }
>
> @@ -160,7 +160,7 @@ static int cplbinfo_read_proc(char *page, char **start, off_t off,
> {
> int len;
>
> - len = cplbinfo_proc_output(page);
> + len = cplbinfo_proc_output(page, data);
> if (len <= off + count)
> *eof = 1;
> *start = page + off;
> @@ -174,20 +174,33 @@ static int cplbinfo_read_proc(char *page, char **start, off_t off,
>
> static int __init cplbinfo_init(void)
> {
> - struct proc_dir_entry *entry;
> + struct proc_dir_entry *parent, *entry;
> + unsigned int cpu;
> + unsigned char str[10];
> +
> + parent = proc_mkdir("cplbinfo", NULL);
>
> - entry = create_proc_entry("cplbinfo", 0, NULL);
> - if (!entry)
> - return -ENOMEM;
> + for_each_online_cpu(cpu) {
> + sprintf(str, "cpu%u", cpu);
> + entry = create_proc_entry(str, 0, parent);
> + if (!entry)
> + return -ENOMEM;
>
> - entry->read_proc = cplbinfo_read_proc;
> - entry->data = NULL;
> + entry->read_proc = cplbinfo_read_proc;
> + entry->data = (void *)cpu;
> + }
>
> return 0;
> }
>
> static void __exit cplbinfo_exit(void)
> {
> + unsigned int cpu;
> + unsigned char str[20];
> + for_each_online_cpu(cpu) {
> + sprintf(str, "cplbinfo/cpu%u", cpu);
> + remove_proc_entry(str, NULL);
> + }
> remove_proc_entry("cplbinfo", NULL);
> }
>
> diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
> index 2debc90..8966c70 100644
> --- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c
> +++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
> @@ -27,46 +27,20 @@
> #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,
> @@ -117,6 +91,16 @@ static struct cplb_desc cplb_data[] = {
> .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 */
> .psize = 0,
> @@ -165,16 +149,6 @@ static struct cplb_desc cplb_data[] = {
> .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,
> .psize = SIZE_1M,
> @@ -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
>
> diff --git a/arch/blackfin/kernel/cplb-nompu/cplbmgr.S b/arch/blackfin/kernel/cplb-nompu/cplbmgr.S
> index f5cf3ac..985f3fc 100644
> --- a/arch/blackfin/kernel/cplb-nompu/cplbmgr.S
> +++ b/arch/blackfin/kernel/cplb-nompu/cplbmgr.S
> @@ -52,6 +52,7 @@
> #include <linux/linkage.h>
> #include <asm/blackfin.h>
> #include <asm/cplb.h>
> +#include <asm/asm-offsets.h>
>
> #ifdef CONFIG_EXCPT_IRQ_SYSC_L1
> .section .l1.text
> @@ -164,10 +165,9 @@ ENTRY(_cplb_mgr)
> .Lifound_victim:
> #ifdef CONFIG_CPLB_INFO
> R7 = [P0 - 0x104];
> - P2.L = _ipdt_table;
> - P2.H = _ipdt_table;
> - P3.L = _ipdt_swapcount_table;
> - P3.H = _ipdt_swapcount_table;
> + GET_PDA(P2, R2);
> + P3 = [P2 + PDA_IPDT_SWAPCOUNT];
> + P2 = [P2 + PDA_IPDT];
> P3 += -4;
> .Licount:
> R2 = [P2]; /* address from config table */
> @@ -208,11 +208,10 @@ ENTRY(_cplb_mgr)
> * range.
> */
>
> - P2.L = _ipdt_table;
> - P2.H = _ipdt_table;
> + GET_PDA(P3, R0);
> + P2 = [P3 + PDA_IPDT];
> #ifdef CONFIG_CPLB_INFO
> - P3.L = _ipdt_swapcount_table;
> - P3.H = _ipdt_swapcount_table;
> + P3 = [P3 + PDA_IPDT_SWAPCOUNT];
> P3 += -8;
> #endif
> P0.L = _page_size_table;
> @@ -469,10 +468,9 @@ ENTRY(_cplb_mgr)
>
> #ifdef CONFIG_CPLB_INFO
> R7 = [P0 - 0x104];
> - P2.L = _dpdt_table;
> - P2.H = _dpdt_table;
> - P3.L = _dpdt_swapcount_table;
> - P3.H = _dpdt_swapcount_table;
> + GET_PDA(P2, R2);
> + P3 = [P2 + PDA_DPDT_SWAPCOUNT];
> + P2 = [P2 + PDA_DPDT];
> P3 += -4;
> .Ldicount:
> R2 = [P2];
> @@ -541,11 +539,10 @@ ENTRY(_cplb_mgr)
>
> R0 = I0; /* Our faulting address */
>
> - P2.L = _dpdt_table;
> - P2.H = _dpdt_table;
> + GET_PDA(P3, R1);
> + P2 = [P3 + PDA_DPDT];
> #ifdef CONFIG_CPLB_INFO
> - P3.L = _dpdt_swapcount_table;
> - P3.H = _dpdt_swapcount_table;
> + P3 = [P3 + PDA_DPDT_SWAPCOUNT];
> P3 += -8;
> #endif
>
> --
> 1.5.6.3
>
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