x86: uv: Add UV watchlist bios call

Add UV bios calls to allocate and free watchlists.

Signed-off-by: Russ Anderson <rja@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/arch/x86/kernel/bios_uv.c b/arch/x86/kernel/bios_uv.c
index 7cefb7170e75..4c02b2799216 100644
--- a/arch/x86/kernel/bios_uv.c
+++ b/arch/x86/kernel/bios_uv.c
@@ -100,6 +100,39 @@ s64 uv_bios_get_sn_info(int fc, int *uvtype, long *partid, long *coher,
         return ret;
 }
 
+int
+uv_bios_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size,
+                           unsigned long *intr_mmr_offset)
+{
+        union uv_watchlist_u size_blade;
+        unsigned long addr;
+        u64 watchlist;
+        s64 ret;
+
+        addr = (unsigned long)mq;
+        size_blade.size = mq_size;
+        size_blade.blade = blade;
+
+        /*
+         * bios returns watchlist number or negative error number.
+         */
+        ret = (int)uv_bios_call_irqsave(UV_BIOS_WATCHLIST_ALLOC, addr,
+                        size_blade.val, (u64)intr_mmr_offset,
+                        (u64)&watchlist, 0);
+        if (ret < BIOS_STATUS_SUCCESS)
+                return ret;
+
+        return watchlist;
+}
+EXPORT_SYMBOL_GPL(uv_bios_mq_watchlist_alloc);
+
+int
+uv_bios_mq_watchlist_free(int blade, int watchlist_num)
+{
+        return (int)uv_bios_call_irqsave(UV_BIOS_WATCHLIST_FREE,
+                                blade, watchlist_num, 0, 0, 0);
+}
+EXPORT_SYMBOL_GPL(uv_bios_mq_watchlist_free);
 
 s64 uv_bios_freq_base(u64 clock_type, u64 *ticks_per_second)
 {