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Blackfin arch: SMP supporting patchset: Blackfin kernel and memory management code

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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 kernel and memory management code

Singed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Graf Yang
2008-11-18 17:48:22 +08:00
committed by Bryan Wu
parent b8a989893c
commit 8f65873e47
14 changed files with 599 additions and 328 deletions
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8
arch/blackfin/kernel/ptrace.c
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@@ -220,8 +220,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
break;
pr_debug("ptrace: user address is valid\n");
if (L1_CODE_LENGTH != 0 && addr >= L1_CODE_START
&& addr + sizeof(tmp) <= L1_CODE_START + L1_CODE_LENGTH) {
if (L1_CODE_LENGTH != 0 && addr >= get_l1_code_start()
&& addr + sizeof(tmp) <= get_l1_code_start() + L1_CODE_LENGTH) {
safe_dma_memcpy (&tmp, (const void *)(addr), sizeof(tmp));
copied = sizeof(tmp);
@@ -300,8 +300,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
break;
pr_debug("ptrace: user address is valid\n");
if (L1_CODE_LENGTH != 0 && addr >= L1_CODE_START
&& addr + sizeof(data) <= L1_CODE_START + L1_CODE_LENGTH) {
if (L1_CODE_LENGTH != 0 && addr >= get_l1_code_start()
&& addr + sizeof(data) <= get_l1_code_start() + L1_CODE_LENGTH) {
safe_dma_memcpy ((void *)(addr), &data, sizeof(data));
copied = sizeof(data);