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Subject[PATCH 5/7] x86: Add UV watchlist bios call
[PATCH 5/7] x86: Add UV watchlist bios call

Calls to allocate and free UV watchlists.

Signed-off-by: Russ Anderson <rja@sgi.com>

---
arch/x86/kernel/bios_uv.c | 33 +++++++++++++++++++++++++++++++++
include/asm-x86/uv/bios.h | 17 ++++++++++++++++-
2 files changed, 49 insertions(+), 1 deletion(-)

Index: linux/arch/x86/kernel/bios_uv.c
===================================================================
--- linux.orig/arch/x86/kernel/bios_uv.c 2008-10-15 09:56:25.000000000 -0500
+++ linux/arch/x86/kernel/bios_uv.c 2008-10-15 13:54:40.000000000 -0500
@@ -100,6 +100,39 @@ s64 uv_bios_get_sn_info(int fc, int *uvt
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)
{
Index: linux/include/asm-x86/uv/bios.h
===================================================================
--- linux.orig/include/asm-x86/uv/bios.h 2008-10-15 09:56:26.000000000 -0500
+++ linux/include/asm-x86/uv/bios.h 2008-10-15 13:48:43.000000000 -0500
@@ -32,7 +32,9 @@
enum uv_bios_cmd {
UV_BIOS_COMMON,
UV_BIOS_GET_SN_INFO,
- UV_BIOS_FREQ_BASE
+ UV_BIOS_FREQ_BASE,
+ UV_BIOS_WATCHLIST_ALLOC,
+ UV_BIOS_WATCHLIST_FREE
};

/*
@@ -71,6 +73,15 @@ union partition_info_u {
};
};

+union uv_watchlist_u {
+ u64 val;
+ struct {
+ u64 blade : 16,
+ size : 32,
+ filler : 16;
+ };
+};
+
/*
* bios calls have 6 parameters
*/
@@ -80,9 +91,13 @@ extern s64 uv_bios_call_reentrant(enum u

extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *);
extern s64 uv_bios_freq_base(u64, u64 *);
+extern int uv_bios_mq_watchlist_alloc(int, void *, unsigned int,
+ unsigned long *);
+extern int uv_bios_mq_watchlist_free(int, int);

extern void uv_bios_init(void);

+extern unsigned long sn_rtc_cycles_per_second;
extern int uv_type;
extern long sn_partition_id;
extern long sn_coherency_id;
--
Russ Anderson, OS RAS/Partitioning Project Lead
SGI - Silicon Graphics Inc rja@sgi.com

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