x86, SGI UV: hardcode the TLB flush interrupt system vector

The UV TLB shootdown mechanism needs a system interrupt vector.

Its vector had been hardcoded as 200, but needs to moved to the reserved
system vector range so that it does not collide with some device vector.

This is still temporary until dynamic system IRQ allocation is provided.
But it will be needed when real UV hardware becomes available and runs 2.6.27.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

3 files changed, 3 insertions, 6 deletions

diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c
index d0fbb7712ab0..8b8c0d6640fa 100644
--- a/arch/x86/kernel/tlb_uv.c
+++ b/arch/x86/kernel/tlb_uv.c
@@ -17,6 +17,7 @@
 #include <asm/genapic.h>
 #include <asm/idle.h>
 #include <asm/tsc.h>
+#include <asm/irq_vectors.h>
 
 #include <mach_apic.h>
 
@@ -783,7 +784,7 @@ static int __init uv_bau_init(void)
                 uv_init_blade(blade, node, cur_cpu);
                 cur_cpu += uv_blade_nr_possible_cpus(blade);
         }
-        set_intr_gate(UV_BAU_MESSAGE, uv_bau_message_intr1);
+        alloc_intr_gate(UV_BAU_MESSAGE, uv_bau_message_intr1);
         uv_enable_timeouts();
 
         return 0;
diff --git a/include/asm-x86/irq_vectors.h b/include/asm-x86/irq_vectors.h
index b95d167b7fb2..a48c7f2dbdc0 100644
--- a/include/asm-x86/irq_vectors.h
+++ b/include/asm-x86/irq_vectors.h
@@ -76,6 +76,7 @@
 #define CALL_FUNCTION_SINGLE_VECTOR     0xfb
 #define THERMAL_APIC_VECTOR             0xfa
 #define THRESHOLD_APIC_VECTOR           0xf9
+#define UV_BAU_MESSAGE                  0xf8
 #define INVALIDATE_TLB_VECTOR_END       0xf7
 #define INVALIDATE_TLB_VECTOR_START     0xf0    /* f0-f7 used for TLB flush */
 
diff --git a/include/asm-x86/uv/uv_bau.h b/include/asm-x86/uv/uv_bau.h
index 91ac0dfb7588..610b6b308e93 100644
--- a/include/asm-x86/uv/uv_bau.h
+++ b/include/asm-x86/uv/uv_bau.h
@@ -40,11 +40,6 @@
 #define UV_ACTIVATION_DESCRIPTOR_SIZE   32
 #define UV_DISTRIBUTION_SIZE            256
 #define UV_SW_ACK_NPENDING              8
-#define UV_BAU_MESSAGE                  200
-/*
- * Messaging irq; see irq_64.h and include/asm-x86/hw_irq_64.h
- * To be dynamically allocated in the future
- */
 #define UV_NET_ENDPOINT_INTD            0x38
 #define UV_DESC_BASE_PNODE_SHIFT        49
 #define UV_PAYLOADQ_PNODE_SHIFT         49