From: steiner@sgi.com
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org
Subject: [Patch 03/14] Add macros for using the UV hub to send interrupts
Date: Thu, 22 Jan 2009 11:49:20 -0600 [thread overview]
Message-ID: <20090122175026.265884000@sgi.com> (raw)
In-Reply-To: 20090122174917.563627000@sgi.com
[-- Attachment #1: uv_send_ipi --]
[-- Type: text/plain, Size: 2691 bytes --]
From: Jack Steiner <steiner@sgi.com>
Add macros for using the UV hub to send interrupts. Change the IPI
code to use these macros. These macros will also be used in additional
patches that will follow.
Signed-off-by: Jack Steiner <steiner@sgi.com>
---
arch/ia64/include/asm/uv/uv_hub.h | 6 ++++++
arch/x86/include/asm/uv/uv_hub.h | 12 ++++++++++++
arch/x86/kernel/genx2apic_uv_x.c | 9 ++-------
3 files changed, 20 insertions(+), 7 deletions(-)
Index: linux/arch/ia64/include/asm/uv/uv_hub.h
===================================================================
--- linux.orig/arch/ia64/include/asm/uv/uv_hub.h 2009-01-11 07:28:11.000000000 -0600
+++ linux/arch/ia64/include/asm/uv/uv_hub.h 2009-01-11 07:28:36.000000000 -0600
@@ -305,5 +305,11 @@ static inline int uv_num_possible_blades
return 1;
}
+static inline void uv_hub_send_ipi(int pnode, int apicid, int vector)
+{
+ /* not currently needed on ia64 */
+}
+
+
#endif /* __ASM_IA64_UV_HUB__ */
Index: linux/arch/x86/include/asm/uv/uv_hub.h
===================================================================
--- linux.orig/arch/x86/include/asm/uv/uv_hub.h 2009-01-11 07:28:11.000000000 -0600
+++ linux/arch/x86/include/asm/uv/uv_hub.h 2009-01-11 07:28:36.000000000 -0600
@@ -16,6 +16,7 @@
#include <linux/timer.h>
#include <asm/types.h>
#include <asm/percpu.h>
+#include <asm/uv/uv_mmrs.h>
/*
@@ -401,4 +402,15 @@ static inline void uv_set_cpu_scir_bits(
}
}
+static inline void uv_hub_send_ipi(int pnode, int apicid, int vector)
+{
+ unsigned long val;
+
+ val = (1UL << UVH_IPI_INT_SEND_SHFT) |
+ ((apicid & 0x3f) << UVH_IPI_INT_APIC_ID_SHFT) |
+ (vector << UVH_IPI_INT_VECTOR_SHFT);
+ uv_write_global_mmr64(pnode, UVH_IPI_INT, val);
+}
+
+
#endif /* _ASM_X86_UV_UV_HUB_H */
Index: linux/arch/x86/kernel/genx2apic_uv_x.c
===================================================================
--- linux.orig/arch/x86/kernel/genx2apic_uv_x.c 2009-01-11 07:28:11.000000000 -0600
+++ linux/arch/x86/kernel/genx2apic_uv_x.c 2009-01-11 07:28:36.000000000 -0600
@@ -113,17 +113,12 @@ int uv_wakeup_secondary(int phys_apicid,
static void uv_send_IPI_one(int cpu, int vector)
{
- unsigned long val, apicid, lapicid;
+ unsigned long apicid;
int pnode;
apicid = per_cpu(x86_cpu_to_apicid, cpu);
- lapicid = apicid & 0x3f; /* ZZZ macro needed */
pnode = uv_apicid_to_pnode(apicid);
- val =
- (1UL << UVH_IPI_INT_SEND_SHFT) | (lapicid <<
- UVH_IPI_INT_APIC_ID_SHFT) |
- (vector << UVH_IPI_INT_VECTOR_SHFT);
- uv_write_global_mmr64(pnode, UVH_IPI_INT, val);
+ uv_hub_send_ipi(pnode, apicid, vector);
}
static void uv_send_IPI_mask(const struct cpumask *mask, int vector)
next prev parent reply other threads:[~2009-01-22 17:52 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-22 17:49 [Patch 00/14] GRU Driver Patches steiner
2009-01-22 17:49 ` [Patch 01/14] Add definitions of x86_64 GRU MMRs steiner
2009-01-28 9:35 ` Andrew Morton
2009-01-28 14:26 ` Jack Steiner
2009-01-28 19:36 ` [PATCH] - Exclude UV definitions on 32-bit x86 Jack Steiner
2009-01-29 10:36 ` [Patch 01/14] Add definitions of x86_64 GRU MMRs Ingo Molnar
2009-01-22 17:49 ` [Patch 02/14] Add definitions of ia64 " steiner
2009-01-22 17:49 ` steiner [this message]
2009-01-22 17:49 ` [Patch 04/14] Misc GRU cleanup steiner
2009-01-22 17:49 ` [Patch 05/14] Improvements to GRU debug messages & statistics steiner
2009-01-22 17:49 ` [Patch 06/14] Change GRU CCH commands from inline functions to outofline functions steiner
2009-01-22 17:49 ` [Patch 07/14] Add statistics to the GRU context management functions steiner
2009-01-22 17:49 ` [Patch 08/14] Add support for a user to explicitly unload a GRU context steiner
2009-01-22 17:49 ` [Patch 09/14] ASID (context management) bug fixes steiner
2009-01-22 17:49 ` [Patch 10/14] Restructure the GRU vtop functions steiner
2009-01-22 17:49 ` [Patch 11/14] Add support to the GRU driver for message queue interrupts steiner
2009-01-22 17:49 ` [Patch 12/14] macro for scanning all gru chiplets steiner
2009-01-22 17:49 ` [Patch 13/14] Fix bugs related to module unload of the GRU driver steiner
2009-01-22 17:49 ` [Patch 14/14] Support multiple pagesizes in GRU steiner
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