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Subject[PATCH 2/6] x86, UV2: calc BAU destination timeout

Move the call to enable_timeouts() forward so that BAU_MISC_CONTROL is
initialized before using it in calculate_destination_timeout().

Fix the calculation of a BAU destination timeout for UV2 (in
calculate_destination_timeout()).

Signed-off-by: Cliff Wickman <cpw@sgi.com>

---
arch/x86/platform/uv/tlb_uv.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
Index: 120113.linux-3.2.1/arch/x86/platform/uv/tlb_uv.c
===================================================================
--- 120113.linux-3.2.1.orig/arch/x86/platform/uv/tlb_uv.c
+++ 120113.linux-3.2.1/arch/x86/platform/uv/tlb_uv.c
@@ -1617,14 +1617,14 @@ static int calculate_destination_timeout
ts_ns = base * mult1 * mult2;
ret = ts_ns / 1000;
} else {
- /* 4 bits 0/1 for 10/80us, 3 bits of multiplier */
- mmr_image = uv_read_local_mmr(UVH_AGING_PRESCALE_SEL);
+ /* 4 bits 0/1 for 10/80us base, 3 bits of multiplier */
+ mmr_image = uv_read_local_mmr(UVH_LB_BAU_MISC_CONTROL);
mmr_image = (mmr_image & UV_SA_MASK) >> UV_SA_SHFT;
if (mmr_image & (1L << UV2_ACK_UNITS_SHFT))
- mult1 = 80;
+ base = 80;
else
- mult1 = 10;
- base = mmr_image & UV2_ACK_MASK;
+ base = 10;
+ mult1 = mmr_image & UV2_ACK_MASK;
ret = mult1 * base;
}
return ret;
@@ -1886,6 +1886,8 @@ static int __init uv_bau_init(void)
uv_base_pnode = uv_blade_to_pnode(uvhub);
}

+ enable_timeouts();
+
if (init_per_cpu(nuvhubs, uv_base_pnode)) {
nobau = 1;
return 0;
@@ -1896,7 +1898,6 @@ static int __init uv_bau_init(void)
if (uv_blade_nr_possible_cpus(uvhub))
init_uvhub(uvhub, vector, uv_base_pnode);

- enable_timeouts();
alloc_intr_gate(vector, uv_bau_message_intr1);

for_each_possible_blade(uvhub) {

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