diff options
| author | Jie Zhang <jie.zhang@analog.com> | 2008-10-28 08:57:49 +0100 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2008-10-28 08:57:49 +0100 |
| commit | b2c2f30388c682520ae2d07c8852b4225dd4a4d7 (patch) | |
| tree | d3df54438d368c27bbc269462cc495c1487dde47 /arch | |
| parent | Blackfin arch: fix incorrect limit check for bf54x check_gpio (diff) | |
| download | linux-b2c2f30388c682520ae2d07c8852b4225dd4a4d7.tar.xz linux-b2c2f30388c682520ae2d07c8852b4225dd4a4d7.zip | |
Blackfin arch: fix bug - shared lib function in L2 failed be called
Allow user space to access L2 SRAM.
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/blackfin/kernel/process.c | 7 | ||||
| -rw-r--r-- | arch/blackfin/mm/sram-alloc.c | 8 |
2 files changed, 10 insertions, 5 deletions
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c index 77800dd83e57..0c3ea118b657 100644 --- a/arch/blackfin/kernel/process.c +++ b/arch/blackfin/kernel/process.c @@ -351,10 +351,15 @@ int _access_ok(unsigned long addr, unsigned long size) return 1; #endif #if L1_DATA_B_LENGTH != 0 - if (addr >= L1_DATA_B_START + if (addr >= L1_DATA_B_START + (_ebss_b_l1 - _sdata_b_l1) && addr + size <= L1_DATA_B_START + L1_DATA_B_LENGTH) return 1; #endif +#if L2_LENGTH != 0 + if (addr >= L2_START + (_ebss_l2 - _stext_l2) + && addr + size <= L2_START + L2_LENGTH) + return 1; +#endif return 0; } EXPORT_SYMBOL(_access_ok); diff --git a/arch/blackfin/mm/sram-alloc.c b/arch/blackfin/mm/sram-alloc.c index 0f1ca6930c16..cc6f336e7313 100644 --- a/arch/blackfin/mm/sram-alloc.c +++ b/arch/blackfin/mm/sram-alloc.c @@ -183,10 +183,10 @@ static void __init l2_sram_init(void) return; } - free_l2_sram_head.next->paddr = (void *)L2_START + - (_etext_l2 - _stext_l2) + (_edata_l2 - _sdata_l2); - free_l2_sram_head.next->size = L2_LENGTH - - (_etext_l2 - _stext_l2) + (_edata_l2 - _sdata_l2); + free_l2_sram_head.next->paddr = + (void *)L2_START + (_ebss_l2 - _stext_l2); + free_l2_sram_head.next->size = + L2_LENGTH - (_ebss_l2 - _stext_l2); free_l2_sram_head.next->pid = 0; free_l2_sram_head.next->next = NULL; |