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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a7f290dad3
This patch moves the vdso's to arch/powerpc, adds support for the 32 bits vdso to the 32 bits kernel, rename systemcfg (finally !), and adds some new (still untested) routines to both vdso's: clock_gettime() with support for CLOCK_REALTIME and CLOCK_MONOTONIC, clock_getres() (same clocks) and get_tbfreq() for glibc to retreive the timebase frequency. Tom,Steve: The implementation of get_tbfreq() I've done for 32 bits returns a long long (r3, r4) not a long. This is such that if we ever add support for >4Ghz timebases on ppc32, the userland interface won't have to change. I have tested gettimeofday() using some glibc patches in both ppc32 and ppc64 kernels using 32 bits userland (I haven't had a chance to test a 64 bits userland yet, but the implementation didn't change and was tested earlier). I haven't tested yet the new functions. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
14 lines
236 B
ArmAsm
14 lines
236 B
ArmAsm
#include <linux/init.h>
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#include <asm/page.h>
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.section ".data.page_aligned"
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.globl vdso64_start, vdso64_end
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.balign PAGE_SIZE
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vdso64_start:
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.incbin "arch/powerpc/kernel/vdso64/vdso64.so"
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.balign PAGE_SIZE
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vdso64_end:
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.previous
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