diff options
| author | Steven Miao <realmz6@gmail.com> | 2013-04-19 18:22:21 +0800 |
|---|---|---|
| committer | Steven Miao <realmz6@gmail.com> | 2013-05-09 18:22:45 +0800 |
| commit | 5ae89ee043ce96e3790e6c75f3807c8e37d98634 (patch) | |
| tree | c54cc18e61006fe4bed77fb2a15e58e6afb12348 /arch/blackfin/kernel/cplb-nompu/cplbinit.c | |
| parent | 5b0830914ae423c840a01ccdfac2dbf1dd1a426b (diff) | |
bfin cache: dcplb map: add 16M dcplb map for BF60x
use 16M data cplb map on BF60x to avoid too much dcplb miss overhead
cleanup cplb info
Signed-off-by: Steven Miao <realmz6@gmail.com>
Diffstat (limited to 'arch/blackfin/kernel/cplb-nompu/cplbinit.c')
| -rw-r--r-- | arch/blackfin/kernel/cplb-nompu/cplbinit.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c index 34e96ce02aa9..b49a53b583d5 100644 --- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c +++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c @@ -30,6 +30,7 @@ void __init generate_cplb_tables_cpu(unsigned int cpu) { int i_d, i_i; unsigned long addr; + unsigned long cplb_pageflags, cplb_pagesize; struct cplb_entry *d_tbl = dcplb_tbl[cpu]; struct cplb_entry *i_tbl = icplb_tbl[cpu]; @@ -49,11 +50,20 @@ void __init generate_cplb_tables_cpu(unsigned int cpu) /* Cover kernel memory with 4M pages. */ addr = 0; - for (; addr < memory_start; addr += 4 * 1024 * 1024) { +#ifdef PAGE_SIZE_16MB + cplb_pageflags = PAGE_SIZE_16MB; + cplb_pagesize = SIZE_16M; +#else + cplb_pageflags = PAGE_SIZE_4MB; + cplb_pagesize = SIZE_4M; +#endif + + + for (; addr < memory_start; addr += cplb_pagesize) { d_tbl[i_d].addr = addr; - d_tbl[i_d++].data = SDRAM_DGENERIC | PAGE_SIZE_4MB; + d_tbl[i_d++].data = SDRAM_DGENERIC | cplb_pageflags; i_tbl[i_i].addr = addr; - i_tbl[i_i++].data = SDRAM_IGENERIC | PAGE_SIZE_4MB; + i_tbl[i_i++].data = SDRAM_IGENERIC | cplb_pageflags; } #ifdef CONFIG_ROMKERNEL |