[PATCH] ppc64: Updated Olof iommu updates 1/3

Split out the implementation-specific parts of include/asm-ppc64/iommu.h
to separate include files (tce.h and dart.h respectively).

The generic iommu code really doesn't care about the underlying
implementation, and the TCE and DART stuff is completely different.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/ppc64/kernel/iSeries_iommu.c b/arch/ppc64/kernel/iSeries_iommu.c
index f8ff1bb054dcde7a0cabb1d1df94d6d419a8c939..287db32d986750d267ba3c2ff520ea44d76062ab 100644 (file)
--- a/arch/ppc64/kernel/iSeries_iommu.c
+++ b/arch/ppc64/kernel/iSeries_iommu.c
@@ -30,6 +30,7 @@
 #include <linux/list.h>
 
 #include <asm/iommu.h>
+#include <asm/tce.h>
 #include <asm/machdep.h>
 #include <asm/iSeries/HvCallXm.h>
 #include <asm/iSeries/iSeries_pci.h>

diff --git a/arch/ppc64/kernel/iSeries_vio.c b/arch/ppc64/kernel/iSeries_vio.c
index 6b754b0c83449651256e232ea8073f72a29bed31..c0f7d2e9153fc0b1b1b686ef76e0cedd670812e9 100644 (file)
--- a/arch/ppc64/kernel/iSeries_vio.c
+++ b/arch/ppc64/kernel/iSeries_vio.c
@@ -14,6 +14,7 @@
 
 #include <asm/vio.h>
 #include <asm/iommu.h>
+#include <asm/tce.h>
 #include <asm/abs_addr.h>
 #include <asm/page.h>
 #include <asm/iSeries/vio.h>

diff --git a/arch/ppc64/kernel/pSeries_iommu.c b/arch/ppc64/kernel/pSeries_iommu.c
index f0fd7fbd6531cd01fb8984d2c81e82a25825b484..7f7947c3e12f8a66502c2467c74b89194c2a98a1 100644 (file)
--- a/arch/ppc64/kernel/pSeries_iommu.c
+++ b/arch/ppc64/kernel/pSeries_iommu.c
@@ -46,6 +46,7 @@
 #include <asm/pSeries_reconfig.h>
 #include <asm/systemcfg.h>
 #include <asm/firmware.h>
+#include <asm/tce.h>
 #include "pci.h"
 
 #define DBG(fmt...)

diff --git a/arch/ppc64/kernel/pSeries_vio.c b/arch/ppc64/kernel/pSeries_vio.c
index e0ae06f58f86b9e322b2dfa85f76fccf50d28282..866379b80c09029ab78d21e9744699afe2484ee6 100644 (file)
--- a/arch/ppc64/kernel/pSeries_vio.c
+++ b/arch/ppc64/kernel/pSeries_vio.c
@@ -22,6 +22,7 @@
 #include <asm/prom.h>
 #include <asm/vio.h>
 #include <asm/hvcall.h>
+#include <asm/tce.h>
 
 extern struct subsystem devices_subsys; /* needed for vio_find_name() */
 

diff --git a/arch/ppc64/kernel/u3_iommu.c b/arch/ppc64/kernel/u3_iommu.c
index 41ea09cb9ac760a2e437bace58b372041850a10f..115cbdf3b13b79d39ecd33c9d3bc688297e6ac70 100644 (file)
--- a/arch/ppc64/kernel/u3_iommu.c
+++ b/arch/ppc64/kernel/u3_iommu.c
@@ -44,39 +44,12 @@
 #include <asm/abs_addr.h>
 #include <asm/cacheflush.h>
 #include <asm/lmb.h>
+#include <asm/dart.h>
 
 #include "pci.h"
 
 extern int iommu_force_on;
 
-/* physical base of DART registers */
-#define DART_BASE        0xf8033000UL
-
-/* Offset from base to control register */
-#define DARTCNTL   0
-/* Offset from base to exception register */
-#define DARTEXCP   0x10
-/* Offset from base to TLB tag registers */
-#define DARTTAG    0x1000
-
-
-/* Control Register fields */
-
-/* base address of table (pfn) */
-#define DARTCNTL_BASE_MASK    0xfffff
-#define DARTCNTL_BASE_SHIFT   12
-
-#define DARTCNTL_FLUSHTLB     0x400
-#define DARTCNTL_ENABLE       0x200
-
-/* size of table in pages */
-#define DARTCNTL_SIZE_MASK    0x1ff
-#define DARTCNTL_SIZE_SHIFT   0
-
-/* DART table fields */
-#define DARTMAP_VALID   0x80000000
-#define DARTMAP_RPNMASK 0x00ffffff
-
 /* Physical base address and size of the DART table */
 unsigned long dart_tablebase; /* exported to htab_initialize */
 static unsigned long dart_tablesize;

diff --git a/include/asm-ppc64/dart.h b/include/asm-ppc64/dart.h
new file mode 100644 (file)
index 0000000..306799a
--- /dev/null
+++ b/include/asm-ppc64/dart.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef _ASM_DART_H
+#define _ASM_DART_H
+
+
+/* physical base of DART registers */
+#define DART_BASE        0xf8033000UL
+
+/* Offset from base to control register */
+#define DARTCNTL   0
+/* Offset from base to exception register */
+#define DARTEXCP   0x10
+/* Offset from base to TLB tag registers */
+#define DARTTAG    0x1000
+
+
+/* Control Register fields */
+
+/* base address of table (pfn) */
+#define DARTCNTL_BASE_MASK    0xfffff
+#define DARTCNTL_BASE_SHIFT   12
+
+#define DARTCNTL_FLUSHTLB     0x400
+#define DARTCNTL_ENABLE       0x200
+
+/* size of table in pages */
+#define DARTCNTL_SIZE_MASK    0x1ff
+#define DARTCNTL_SIZE_SHIFT   0
+
+
+/* DART table fields */
+
+#define DARTMAP_VALID   0x80000000
+#define DARTMAP_RPNMASK 0x00ffffff
+
+
+
+#endif

diff --git a/include/asm-ppc64/iommu.h b/include/asm-ppc64/iommu.h
index 72dcf8116b04390446c7e1e4c2110f46e5df5962..a6a173d49506092c3f87c59853a1b74d71283c4b 100644 (file)
--- a/include/asm-ppc64/iommu.h
+++ b/include/asm-ppc64/iommu.h
@@ -1,5 +1,4 @@
 /*
- * iommu.h
  * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
  * Rewrite, cleanup:
  * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
@@ -29,44 +28,11 @@
 
 /*
  * IOMAP_MAX_ORDER defines the largest contiguous block
- * of dma (tce) space we can get.  IOMAP_MAX_ORDER = 13
+ * of dma space we can get.  IOMAP_MAX_ORDER = 13
  * allows up to 2**12 pages (4096 * 4096) = 16 MB
  */
 #define IOMAP_MAX_ORDER 13
 
-/*
- * Tces come in two formats, one for the virtual bus and a different
- * format for PCI
- */
-#define TCE_VB  0
-#define TCE_PCI 1
-
-/* tce_entry
- * Used by pSeries (SMP) and iSeries/pSeries LPAR, but there it's
- * abstracted so layout is irrelevant.
- */
-union tce_entry {
-       unsigned long te_word;
-       struct {
-               unsigned int  tb_cacheBits :6;  /* Cache hash bits - not used */
-               unsigned int  tb_rsvd      :6;
-               unsigned long tb_rpn       :40; /* Real page number */
-               unsigned int  tb_valid     :1;  /* Tce is valid (vb only) */
-               unsigned int  tb_allio     :1;  /* Tce is valid for all lps (vb only) */
-               unsigned int  tb_lpindex   :8;  /* LpIndex for user of TCE (vb only) */
-               unsigned int  tb_pciwr     :1;  /* Write allowed (pci only) */
-               unsigned int  tb_rdwr      :1;  /* Read allowed  (pci), Write allowed (vb) */
-       } te_bits;
-#define te_cacheBits te_bits.tb_cacheBits
-#define te_rpn       te_bits.tb_rpn
-#define te_valid     te_bits.tb_valid
-#define te_allio     te_bits.tb_allio
-#define te_lpindex   te_bits.tb_lpindex
-#define te_pciwr     te_bits.tb_pciwr
-#define te_rdwr      te_bits.tb_rdwr
-};
-
-
 struct iommu_table {
        unsigned long  it_busno;     /* Bus number this table belongs to */
        unsigned long  it_size;      /* Size of iommu table in entries */

diff --git a/include/asm-ppc64/tce.h b/include/asm-ppc64/tce.h
new file mode 100644 (file)
index 0000000..636504c
--- /dev/null
+++ b/include/asm-ppc64/tce.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
+ * Rewrite, cleanup:
+ * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef _ASM_TCE_H
+#define _ASM_TCE_H
+
+/*
+ * Tces come in two formats, one for the virtual bus and a different
+ * format for PCI
+ */
+#define TCE_VB  0
+#define TCE_PCI 1
+
+/* tce_entry
+ * Used by pSeries (SMP) and iSeries/pSeries LPAR, but there it's
+ * abstracted so layout is irrelevant.
+ */
+union tce_entry {
+       unsigned long te_word;
+       struct {
+               unsigned int  tb_cacheBits :6;  /* Cache hash bits - not used */
+               unsigned int  tb_rsvd      :6;
+               unsigned long tb_rpn       :40; /* Real page number */
+               unsigned int  tb_valid     :1;  /* Tce is valid (vb only) */
+               unsigned int  tb_allio     :1;  /* Tce is valid for all lps (vb only) */
+               unsigned int  tb_lpindex   :8;  /* LpIndex for user of TCE (vb only) */
+               unsigned int  tb_pciwr     :1;  /* Write allowed (pci only) */
+               unsigned int  tb_rdwr      :1;  /* Read allowed  (pci), Write allowed (vb) */
+       } te_bits;
+#define te_cacheBits te_bits.tb_cacheBits
+#define te_rpn       te_bits.tb_rpn
+#define te_valid     te_bits.tb_valid
+#define te_allio     te_bits.tb_allio
+#define te_lpindex   te_bits.tb_lpindex
+#define te_pciwr     te_bits.tb_pciwr
+#define te_rdwr      te_bits.tb_rdwr
+};
+
+
+#endif