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From: Milton Miller <miltonm@bga.com>
To: linuxppc-dev@ozlabs.org,
	Ben Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>
Subject: [PATCH 5/16] xics: change arg type to remove casts
Date: Fri, 10 Oct 2008 06:56:32 -0500 (CDT)	[thread overview]
Message-ID: <patch-xics-5@bga.com> (raw)
In-Reply-To: <patch-xics-0@bga.com>

The xirr is 32 bits in hardware, but the hypervisor requries the upper
bits of the register to be clear on the hcall.  By changing the type
from signed to unsigned int we can drop masking it back to 32 bits.

Signed-off-by: Milton Miller <miltonm@bga.com>

Index: next.git/arch/powerpc/platforms/pseries/xics.c
===================================================================
--- next.git.orig/arch/powerpc/platforms/pseries/xics.c	2008-10-04 06:07:00.000000000 -0500
+++ next.git/arch/powerpc/platforms/pseries/xics.c	2008-10-04 06:13:40.000000000 -0500
@@ -87,7 +87,7 @@ static inline unsigned int direct_xirr_i
 	return in_be32(&xics_per_cpu[cpu]->xirr.word);
 }
 
-static inline void direct_xirr_info_set(int value)
+static inline void direct_xirr_info_set(unsigned int value)
 {
 	int cpu = smp_processor_id();
 
@@ -120,15 +120,14 @@ static inline unsigned int lpar_xirr_inf
 	return (unsigned int)return_value;
 }
 
-static inline void lpar_xirr_info_set(int value)
+static inline void lpar_xirr_info_set(unsigned int value)
 {
 	unsigned long lpar_rc;
-	unsigned long val64 = value & 0xffffffff;
 
-	lpar_rc = plpar_eoi(val64);
+	lpar_rc = plpar_eoi(value);
 	if (lpar_rc != H_SUCCESS)
-		panic("bad return code EOI - rc = %ld, value=%lx\n", lpar_rc,
-		      val64);
+		panic("bad return code EOI - rc = %ld, value=%x\n", lpar_rc,
+		      value);
 }
 
 static inline void lpar_cppr_info(u8 value)

  parent reply	other threads:[~2008-10-10 11:56 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-10 11:56 [PATCH 00/16] xics and ipi cleanups for 2.6.28 Milton Miller
2008-10-10 11:56 ` [PATCH 1/16] powerpc pseries: eoi unmapped xics irqs after disable Milton Miller
2008-10-10 11:56 ` [PATCH 2/16] xics: update default_server during migrate_irqs_away Milton Miller
2008-10-13 20:04   ` Nathan Fontenot
2008-10-10 11:56 ` [PATCH 3/16] xics: consolidate ipi message encode and decode Milton Miller
2008-10-10 11:56 ` [PATCH 4/16] xics: rearrange file to group code by function Milton Miller
2008-10-10 11:56 ` Milton Miller [this message]
2008-10-10 11:56 ` [PATCH 6/16] xics: trim includes Milton Miller
2008-10-10 11:56 ` [PATCH 7/16] xics: initialization cleanups Milton Miller
2008-10-13  0:55   ` Benjamin Herrenschmidt
2008-10-10 11:56 ` [PATCH 8/16] xics: factor out giq set and unset Milton Miller
2008-10-10 11:56 ` [PATCH 9/16] powerpc: eoi xics ipi by hand in kexec Milton Miller
2008-10-10 11:56 ` [PATCH 11/16] powerpc: mark xics ipi percpu Milton Miller
2008-10-10 11:56 ` [PATCH 10/16] xics: make printk formats fit on one line Milton Miller
2008-10-10 11:56 ` [PATCH 12/16] powerpc: reduce and comment xics ipi memory barrier Milton Miller
2008-10-10 11:56 ` [PATCH 13/16] powerpc smp: no need to set_need_resched in resched ipi Milton Miller
2008-10-10 11:56   ` [PATCH 14/16] powerpc: expand vs demux ipi actions per message Milton Miller
2008-10-10 11:56     ` [PATCH 14/16] powerpc mpic: use smp_request_message_ipi Milton Miller
2008-10-10 11:56     ` [PATCH 15/16] powerpc cell: " Milton Miller
2008-10-10 11:56     ` [PATCH 16/16] powerpc ps3: " Milton Miller
2008-10-10 12:55     ` [PATCH 14/16] powerpc: expand vs demux ipi actions per message Geert Uytterhoeven
2008-10-21  1:37     ` [PATCH 14/16 v2] " Milton Miller
2008-11-06  4:42       ` Paul Mackerras
2008-11-11 16:12         ` Milton Miller
2008-10-13  5:28 ` [PATCH 00/16] xics and ipi cleanups for 2.6.28 Benjamin Herrenschmidt

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