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>
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2 changed files with 49 additions and 1 deletions
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@ -32,7 +32,9 @@
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enum uv_bios_cmd {
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UV_BIOS_COMMON,
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UV_BIOS_GET_SN_INFO,
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UV_BIOS_FREQ_BASE
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UV_BIOS_FREQ_BASE,
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UV_BIOS_WATCHLIST_ALLOC,
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UV_BIOS_WATCHLIST_FREE
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};
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/*
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@ -71,6 +73,15 @@ union partition_info_u {
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};
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};
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union uv_watchlist_u {
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u64 val;
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struct {
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u64 blade : 16,
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size : 32,
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filler : 16;
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};
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};
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/*
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* bios calls have 6 parameters
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*/
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@ -80,9 +91,13 @@ extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64);
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extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *);
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extern s64 uv_bios_freq_base(u64, u64 *);
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extern int uv_bios_mq_watchlist_alloc(int, void *, unsigned int,
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unsigned long *);
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extern int uv_bios_mq_watchlist_free(int, int);
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extern void uv_bios_init(void);
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extern unsigned long sn_rtc_cycles_per_second;
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extern int uv_type;
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extern long sn_partition_id;
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extern long sn_coherency_id;
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@ -100,6 +100,39 @@ s64 uv_bios_get_sn_info(int fc, int *uvtype, long *partid, long *coher,
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return ret;
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}
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int
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uv_bios_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size,
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unsigned long *intr_mmr_offset)
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{
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union uv_watchlist_u size_blade;
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unsigned long addr;
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u64 watchlist;
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s64 ret;
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addr = (unsigned long)mq;
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size_blade.size = mq_size;
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size_blade.blade = blade;
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/*
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* bios returns watchlist number or negative error number.
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*/
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ret = (int)uv_bios_call_irqsave(UV_BIOS_WATCHLIST_ALLOC, addr,
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size_blade.val, (u64)intr_mmr_offset,
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(u64)&watchlist, 0);
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if (ret < BIOS_STATUS_SUCCESS)
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return ret;
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return watchlist;
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}
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EXPORT_SYMBOL_GPL(uv_bios_mq_watchlist_alloc);
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int
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uv_bios_mq_watchlist_free(int blade, int watchlist_num)
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{
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return (int)uv_bios_call_irqsave(UV_BIOS_WATCHLIST_FREE,
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blade, watchlist_num, 0, 0, 0);
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}
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EXPORT_SYMBOL_GPL(uv_bios_mq_watchlist_free);
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s64 uv_bios_freq_base(u64 clock_type, u64 *ticks_per_second)
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{
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