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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-22 21:49:16 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-22 21:49:16 -0700 |
commit | d888a4c76c51092993643f8992bf55b3c28da483 (patch) | |
tree | 62cb91e0668c00cd60b4f48aecfbded960ee79c3 /arch/blackfin/kernel/cplb-mpu | |
parent | 687d680985b1438360a9ba470ece8b57cd205c3b (diff) | |
parent | 42b86e06c7db365f1947dda9b75317cbb3c9fb5b (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (27 commits)
Blackfin: fix dma-mapping build errors
Blackfin: hook up new perf_counter_open syscall
Blackfin: drop BF535-specific text for exception 0x2A (unaligned instruction)
Blackfin: fix early crash when booting on wrong cpu
Blackfin: fix GPTMR0_CLOCKSOURCE dependency on BFIN_GPTIMERS
Blackfin: drop unused ISP1760 port1_disable from board resources
Blackfin: bf526-ezbrd: handle different SDRAM chips
Blackfin: fix typo in TRAS define in mem_init.h header
Blackfin: unify memory map headers
Blackfin: stick the CPU name into boot image name
Blackfin: update defconfigs
Blackfin: decouple unrelated cache settings to get exact behavior
Blackfin: update I-pipe patch level
Blackfin: remove obsolete mcount support from I-pipe code
Blackfin: allow CONFIG_TICKSOURCE_GPTMR0 with interrupt pipeline
Blackfin: convert interrupt pipeline to irqflags
Blackfin: allow people to select BF51x-0.1 silicon rev
Blackfin: bf526-ezbrd: set SPI flash resources to SST device
Blackfin: fix accidental reset in some boot modes
Blackfin: abstract irq14 lowering in do_irq
...
Diffstat (limited to 'arch/blackfin/kernel/cplb-mpu')
-rw-r--r-- | arch/blackfin/kernel/cplb-mpu/cplbinit.c | 10 | ||||
-rw-r--r-- | arch/blackfin/kernel/cplb-mpu/cplbmgr.c | 36 |
2 files changed, 29 insertions, 17 deletions
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c b/arch/blackfin/kernel/cplb-mpu/cplbinit.c index c006a44527bf..36193eed9a1f 100644 --- a/arch/blackfin/kernel/cplb-mpu/cplbinit.c +++ b/arch/blackfin/kernel/cplb-mpu/cplbinit.c @@ -46,13 +46,13 @@ void __init generate_cplb_tables_cpu(unsigned int cpu) printk(KERN_INFO "MPU: setting up cplb tables with memory protection\n"); -#ifdef CONFIG_BFIN_ICACHE +#ifdef CONFIG_BFIN_EXTMEM_ICACHEABLE i_cache = CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND; #endif -#ifdef CONFIG_BFIN_DCACHE +#ifdef CONFIG_BFIN_EXTMEM_DCACHEABLE d_cache = CPLB_L1_CHBL; -#ifdef CONFIG_BFIN_WT +#ifdef CONFIG_BFIN_EXTMEM_WRITETROUGH d_cache |= CPLB_L1_AOW | CPLB_WT; #endif #endif @@ -91,9 +91,9 @@ void __init generate_cplb_tables_cpu(unsigned int cpu) /* Cover L2 memory */ #if L2_LENGTH > 0 dcplb_tbl[cpu][i_d].addr = L2_START; - dcplb_tbl[cpu][i_d++].data = L2_DMEMORY | PAGE_SIZE_1MB; + dcplb_tbl[cpu][i_d++].data = L2_DMEMORY; icplb_tbl[cpu][i_i].addr = L2_START; - icplb_tbl[cpu][i_i++].data = L2_IMEMORY | PAGE_SIZE_1MB; + icplb_tbl[cpu][i_i++].data = L2_IMEMORY; #endif first_mask_dcplb = i_d; diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c index 784923e52a9a..bcdfe9b0b71f 100644 --- a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c +++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c @@ -150,15 +150,19 @@ static noinline int dcplb_miss(unsigned int cpu) nr_dcplb_miss[cpu]++; d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB; -#ifdef CONFIG_BFIN_DCACHE +#ifdef CONFIG_BFIN_EXTMEM_DCACHEABLE if (bfin_addr_dcacheable(addr)) { d_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND; -#ifdef CONFIG_BFIN_WT +# ifdef CONFIG_BFIN_EXTMEM_WRITETHROUGH d_data |= CPLB_L1_AOW | CPLB_WT; -#endif +# endif } #endif - if (addr >= physical_mem_end) { + + if (L2_LENGTH && addr >= L2_START && addr < L2_START + L2_LENGTH) { + addr = L2_START; + d_data = L2_DMEMORY; + } else if (addr >= physical_mem_end) { if (addr >= ASYNC_BANK0_BASE && addr < ASYNC_BANK3_BASE + ASYNC_BANK3_SIZE && (status & FAULT_USERSUPV)) { addr &= ~0x3fffff; @@ -235,7 +239,7 @@ static noinline int icplb_miss(unsigned int cpu) i_data = CPLB_VALID | CPLB_PORTPRIO | PAGE_SIZE_4KB; -#ifdef CONFIG_BFIN_ICACHE +#ifdef CONFIG_BFIN_EXTMEM_ICACHEABLE /* * Normal RAM, and possibly the reserved memory area, are * cacheable. @@ -245,7 +249,10 @@ static noinline int icplb_miss(unsigned int cpu) i_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND; #endif - if (addr >= physical_mem_end) { + if (L2_LENGTH && addr >= L2_START && addr < L2_START + L2_LENGTH) { + addr = L2_START; + i_data = L2_IMEMORY; + } else if (addr >= physical_mem_end) { if (addr >= BOOT_ROM_START && addr < BOOT_ROM_START + BOOT_ROM_LENGTH && (status & FAULT_USERSUPV)) { addr &= ~(1 * 1024 * 1024 - 1); @@ -365,13 +372,18 @@ void set_mask_dcplbs(unsigned long *masks, unsigned int cpu) local_irq_save_hw(flags); current_rwx_mask[cpu] = masks; - d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB; -#ifdef CONFIG_BFIN_DCACHE - d_data |= CPLB_L1_CHBL; -#ifdef CONFIG_BFIN_WT - d_data |= CPLB_L1_AOW | CPLB_WT; -#endif + if (L2_LENGTH && addr >= L2_START && addr < L2_START + L2_LENGTH) { + addr = L2_START; + d_data = L2_DMEMORY; + } else { + d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB; +#ifdef CONFIG_BFIN_EXTMEM_DCACHEABLE + d_data |= CPLB_L1_CHBL; +# ifdef CONFIG_BFIN_EXTMEM_WRITETHROUGH + d_data |= CPLB_L1_AOW | CPLB_WT; +# endif #endif + } disable_dcplb(); for (i = first_mask_dcplb; i < first_switched_dcplb; i++) { |