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author | marius <marius@FreeBSD.org> | 2010-09-15 21:44:31 +0000 |
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committer | marius <marius@FreeBSD.org> | 2010-09-15 21:44:31 +0000 |
commit | 6c236115f4b69ebb0a466ee25701d1092d1b900d (patch) | |
tree | 62c5f97ba461f8e0ad29a727836ebf6b175438e3 /sys/sparc64 | |
parent | 51d5293d0c39c6e91cbb9d7ef18f8d109dfaf939 (diff) | |
download | FreeBSD-src-6c236115f4b69ebb0a466ee25701d1092d1b900d.zip FreeBSD-src-6c236115f4b69ebb0a466ee25701d1092d1b900d.tar.gz |
Add a VIS-based block copy function for SPARC64 V and later, which
additionally takes advantage of the prefetch cache of these CPUs.
Unlike the uncommitted US-III version, which provide no measurable
speedup or even resulted in a slight slowdown on certain CPUs models
compared to using the US-I version with these, the SPARC64 version
actually results in a slight improvement.
Diffstat (limited to 'sys/sparc64')
-rw-r--r-- | sys/sparc64/include/md_var.h | 2 | ||||
-rw-r--r-- | sys/sparc64/sparc64/machdep.c | 7 | ||||
-rw-r--r-- | sys/sparc64/sparc64/support.S | 113 |
3 files changed, 121 insertions, 1 deletions
diff --git a/sys/sparc64/include/md_var.h b/sys/sparc64/include/md_var.h index 8f064e7..8503b43 100644 --- a/sys/sparc64/include/md_var.h +++ b/sys/sparc64/include/md_var.h @@ -58,6 +58,8 @@ struct md_utrap *utrap_hold(struct md_utrap *ut); cpu_block_copy_t spitfire_block_copy; cpu_block_zero_t spitfire_block_zero; +cpu_block_copy_t zeus_block_copy; +cpu_block_zero_t zeus_block_zero; extern cpu_block_copy_t *cpu_block_copy; extern cpu_block_zero_t *cpu_block_zero; diff --git a/sys/sparc64/sparc64/machdep.c b/sys/sparc64/sparc64/machdep.c index 193da2f..a4ed381 100644 --- a/sys/sparc64/sparc64/machdep.c +++ b/sys/sparc64/sparc64/machdep.c @@ -495,7 +495,6 @@ sparc64_init(caddr_t mdp, u_long o1, u_long o2, u_long o3, ofw_vec_t *vec) if (cpu_use_vis) { switch (cpu_impl) { case CPU_IMPL_SPARC64: - case CPU_IMPL_SPARC64V: case CPU_IMPL_ULTRASPARCI: case CPU_IMPL_ULTRASPARCII: case CPU_IMPL_ULTRASPARCIIi: @@ -509,6 +508,12 @@ sparc64_init(caddr_t mdp, u_long o1, u_long o2, u_long o3, ofw_vec_t *vec) cpu_block_copy = spitfire_block_copy; cpu_block_zero = spitfire_block_zero; break; + case CPU_IMPL_SPARC64V: + cpu_block_copy = zeus_block_copy; + cpu_block_zero = zeus_block_zero; + cpu_block_copy = spitfire_block_copy; + cpu_block_zero = spitfire_block_zero; + break; } } diff --git a/sys/sparc64/sparc64/support.S b/sys/sparc64/sparc64/support.S index d4ca5d3..70241d8 100644 --- a/sys/sparc64/sparc64/support.S +++ b/sys/sparc64/sparc64/support.S @@ -661,8 +661,121 @@ ENTRY(spitfire_block_copy) END(spitfire_block_copy) /* + * void zeus_block_copy(void *src, void *dst, size_t len) + */ +ENTRY(zeus_block_copy) + prefetch [%o0 + (0 * 64)], 0 + + rdpr %pil, %o3 + wrpr %g0, PIL_TICK, %pil + + wr %g0, ASI_BLK_S, %asi + wr %g0, FPRS_FEF, %fprs + + sub PCB_REG, TF_SIZEOF, %o4 + ldx [%o4 + TF_FPRS], %o5 + andcc %o5, FPRS_FEF, %g0 + bz,a,pt %xcc, 1f + nop + stda %f0, [PCB_REG + PCB_UFP + (0 * 64)] %asi + stda %f16, [PCB_REG + PCB_UFP + (1 * 64)] %asi + stda %f32, [PCB_REG + PCB_UFP + (2 * 64)] %asi + stda %f48, [PCB_REG + PCB_UFP + (3 * 64)] %asi + membar #Sync + + andn %o5, FPRS_FEF, %o5 + stx %o5, [%o4 + TF_FPRS] + ldx [PCB_REG + PCB_FLAGS], %o4 + or %o4, PCB_FEF, %o4 + stx %o4, [PCB_REG + PCB_FLAGS] + +1: wrpr %o3, 0, %pil + + ldd [%o0 + (0 * 8)], %f0 + prefetch [%o0 + (1 * 64)], 0 + ldd [%o0 + (1 * 8)], %f2 + prefetch [%o0 + (2 * 64)], 0 + fmovd %f0, %f32 + ldd [%o0 + (2 * 8)], %f4 + prefetch [%o0 + (3 * 64)], 0 + fmovd %f2, %f34 + ldd [%o0 + (3 * 8)], %f6 + prefetch [%o0 + (4 * 64)], 1 + fmovd %f4, %f36 + ldd [%o0 + (4 * 8)], %f8 + prefetch [%o0 + (8 * 64)], 1 + fmovd %f6, %f38 + ldd [%o0 + (5 * 8)], %f10 + prefetch [%o0 + (12 * 64)], 1 + fmovd %f8, %f40 + ldd [%o0 + (6 * 8)], %f12 + prefetch [%o0 + (16 * 64)], 1 + fmovd %f10, %f42 + ldd [%o0 + (7 * 8)], %f14 + ldd [%o0 + (8 * 8)], %f0 + sub %o2, 64, %o2 + add %o0, 64, %o0 + prefetch [%o0 + (19 * 64)], 1 + ba,pt %xcc, 2f + prefetch [%o0 + (23 * 64)], 1 + .align 32 + +2: ldd [%o0 + (1 * 8)], %f2 + fmovd %f12, %f44 + ldd [%o0 + (2 * 8)], %f4 + fmovd %f14, %f46 + stda %f32, [%o1] %asi + ldd [%o0 + (3 * 8)], %f6 + fmovd %f0, %f32 + ldd [%o0 + (4 * 8)], %f8 + fmovd %f2, %f34 + ldd [%o0 + (5 * 8)], %f10 + fmovd %f4, %f36 + ldd [%o0 + (6 * 8)], %f12 + fmovd %f6, %f38 + ldd [%o0 + (7 * 8)], %f14 + fmovd %f8, %f40 + ldd [%o0 + (8 * 8)], %f0 + fmovd %f10, %f42 + sub %o2, 64, %o2 + prefetch [%o0 + (3 * 64)], 0 + add %o1, 64, %o1 + prefetch [%o0 + (24 * 64)], 1 + add %o0, 64, %o0 + cmp %o2, 64 + 8 + bgu,pt %xcc, 2b + prefetch [%o0 + (12 * 64)], 1 + ldd [%o0 + (1 * 8)], %f2 + fsrc1 %f12, %f44 + ldd [%o0 + (2 * 8)], %f4 + fsrc1 %f14, %f46 + stda %f32, [%o1] %asi + ldd [%o0 + (3 * 8)], %f6 + fsrc1 %f0, %f32 + ldd [%o0 + (4 * 8)], %f8 + fsrc1 %f2, %f34 + ldd [%o0 + (5 * 8)], %f10 + fsrc1 %f4, %f36 + ldd [%o0 + (6 * 8)], %f12 + fsrc1 %f6, %f38 + ldd [%o0 + (7 * 8)], %f14 + fsrc1 %f8, %f40 + add %o1, 64, %o1 + fsrc1 %f10, %f42 + fsrc1 %f12, %f44 + fsrc1 %f14, %f46 + stda %f32, [%o1] %asi + membar #Sync + + retl + wr %g0, 0, %fprs +END(zeus_block_copy) + +/* * void spitfire_block_zero(void *dst, size_t len) + * void zeus_block_zero(void *dst, size_t len) */ +ALTENTRY(zeus_block_zero) ENTRY(spitfire_block_zero) rdpr %pil, %o3 wrpr %g0, PIL_TICK, %pil |