diff options
author | Dean Nelson <dcn@sgi.com> | 2008-11-05 17:27:22 -0600 |
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committer | H. Peter Anvin <hpa@zytor.com> | 2008-11-05 20:32:20 -0800 |
commit | 6c1c325de908cbc444cf284f59c3a892161012e9 (patch) | |
tree | 9e1eaff01127dbe50fee94cbb75b35621c32c215 /drivers/misc/sgi-xp/xp_sn2.c | |
parent | 23c357003b3671cdfb17bc4d5383589e74b71511 (diff) | |
download | op-kernel-dev-6c1c325de908cbc444cf284f59c3a892161012e9.zip op-kernel-dev-6c1c325de908cbc444cf284f59c3a892161012e9.tar.gz |
sgi-xp: define xp_expand_memprotect() and xp_restrict_memprotect()
Define xp_expand_memprotect() and xp_restrict_memprotect() so they can be
tailered to the hardware they are run on.
Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'drivers/misc/sgi-xp/xp_sn2.c')
-rw-r--r-- | drivers/misc/sgi-xp/xp_sn2.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/misc/sgi-xp/xp_sn2.c b/drivers/misc/sgi-xp/xp_sn2.c index 1440134..fb3ec9d 100644 --- a/drivers/misc/sgi-xp/xp_sn2.c +++ b/drivers/misc/sgi-xp/xp_sn2.c @@ -120,6 +120,38 @@ xp_cpu_to_nasid_sn2(int cpuid) return cpuid_to_nasid(cpuid); } +static enum xp_retval +xp_expand_memprotect_sn2(unsigned long phys_addr, unsigned long size) +{ + u64 nasid_array = 0; + int ret; + + ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_1, + &nasid_array); + if (ret != 0) { + dev_err(xp, "sn_change_memprotect(,, " + "SN_MEMPROT_ACCESS_CLASS_1,) failed ret=%d\n", ret); + return xpSalError; + } + return xpSuccess; +} + +static enum xp_retval +xp_restrict_memprotect_sn2(unsigned long phys_addr, unsigned long size) +{ + u64 nasid_array = 0; + int ret; + + ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_0, + &nasid_array); + if (ret != 0) { + dev_err(xp, "sn_change_memprotect(,, " + "SN_MEMPROT_ACCESS_CLASS_0,) failed ret=%d\n", ret); + return xpSalError; + } + return xpSuccess; +} + enum xp_retval xp_init_sn2(void) { @@ -132,6 +164,8 @@ xp_init_sn2(void) xp_pa = xp_pa_sn2; xp_remote_memcpy = xp_remote_memcpy_sn2; xp_cpu_to_nasid = xp_cpu_to_nasid_sn2; + xp_expand_memprotect = xp_expand_memprotect_sn2; + xp_restrict_memprotect = xp_restrict_memprotect_sn2; return xp_register_nofault_code_sn2(); } |