[Cbe-oss-dev] [patch 3/6] spufs: support multi-platform priv1 access

Geoff Levand geoffrey.levand at am.sony.com
Thu Apr 27 07:52:39 EST 2006


To support muti-platform binaries the spu hypervisor accessor
routines must have runtime binding.

I removed the existing statically linked routines in spu.h
and spu_priv1.c and created new accessor routines in spu_priv1.h
that operate indirectly through an ops struct spu_priv1_ops.  Now
spu_priv1.c contains the instance of the accessor routines
for running on raw hardware in hypervisor state.

Signed-off-by: Geoff Levand <geoffrey.levand at am.sony.com>

Index: cell--alp--1/arch/powerpc/platforms/cell/setup.c
===================================================================
--- cell--alp--1.orig/arch/powerpc/platforms/cell/setup.c	2006-04-26 11:47:22.000000000 -0700
+++ cell--alp--1/arch/powerpc/platforms/cell/setup.c	2006-04-26 11:47:43.000000000 -0700
@@ -49,6 +49,7 @@
 #include <asm/ppc-pci.h>
 #include <asm/irq.h>
 #include <asm/spu.h>
+#include <asm/spu_priv1.h>

 #include "interrupt.h"
 #include "iommu.h"
@@ -60,6 +61,7 @@
 #define DBG(fmt...)
 #endif
 extern void cell_final_fixup(void);
+extern const struct spu_priv1_ops spu_raw_priv1_ops;

 static void cell_show_cpuinfo(struct seq_file *m)
 {
@@ -111,6 +113,7 @@
 {
 	ppc_md.init_IRQ       = iic_init_IRQ;
 	ppc_md.get_irq        = iic_get_irq;
+	spu_priv1_ops         = &spu_raw_priv1_ops;

 	fixup_cmdline(cmd_line);

Index: cell--alp--1/arch/powerpc/platforms/cell/spu_base.c
===================================================================
--- cell--alp--1.orig/arch/powerpc/platforms/cell/spu_base.c	2006-04-26 11:47:22.000000000 -0700
+++ cell--alp--1/arch/powerpc/platforms/cell/spu_base.c	2006-04-26 11:47:43.000000000 -0700
@@ -34,10 +34,15 @@
 #include <asm/prom.h>
 #include <asm/semaphore.h>
 #include <asm/spu.h>
+#include <asm/spu_priv1.h>
 #include <asm/mmu_context.h>

 #include "interrupt.h"

+const struct spu_priv1_ops* spu_priv1_ops;
+
+EXPORT_SYMBOL_GPL(spu_priv1_ops);
+
 static int __spu_trap_invalid_dma(struct spu *spu)
 {
 	pr_debug("%s\n", __FUNCTION__);
@@ -786,6 +791,8 @@
 	struct device_node *node;
 	int ret;

+	BUG_ON(!spu_priv1_ops);
+
 	/* create sysdev class for spus */
 	ret = sysdev_class_register(&spu_sysdev_class);
 	if (ret)
Index: cell--alp--1/arch/powerpc/platforms/cell/spu_priv1.c
===================================================================
--- cell--alp--1.orig/arch/powerpc/platforms/cell/spu_priv1.c	2006-04-26 11:47:22.000000000 -0700
+++ cell--alp--1/arch/powerpc/platforms/cell/spu_priv1.c	2006-04-26 11:47:43.000000000 -0700
@@ -1,108 +1,112 @@
 /*
- * access to SPU privileged registers
+ * spu_priv1.c - This file implements the spu hypervisor abstractions
+ * for running on raw hardware in hypervisor state.
+ *
+ *  (C) Copyright IBM Deutschland Entwicklung GmbH 2005
+ *  Copyright 2006 Sony Corp.
+ *
+ *  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; version 2 of the License.
+ *
+ *  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
  */
+
 #include <linux/module.h>

 #include <asm/io.h>
 #include <asm/spu.h>
+#include <asm/spu_priv1.h>

-void spu_int_mask_and(struct spu *spu, int class, u64 mask)
+static void int_mask_and(struct spu *spu, int class, u64 mask)
 {
 	u64 old_mask;

 	old_mask = in_be64(&spu->priv1->int_mask_RW[class]);
 	out_be64(&spu->priv1->int_mask_RW[class], old_mask & mask);
 }
-EXPORT_SYMBOL_GPL(spu_int_mask_and);

-void spu_int_mask_or(struct spu *spu, int class, u64 mask)
+static void int_mask_or(struct spu *spu, int class, u64 mask)
 {
 	u64 old_mask;

 	old_mask = in_be64(&spu->priv1->int_mask_RW[class]);
 	out_be64(&spu->priv1->int_mask_RW[class], old_mask | mask);
 }
-EXPORT_SYMBOL_GPL(spu_int_mask_or);

-void spu_int_mask_set(struct spu *spu, int class, u64 mask)
+static void int_mask_set(struct spu *spu, int class, u64 mask)
 {
 	out_be64(&spu->priv1->int_mask_RW[class], mask);
 }
-EXPORT_SYMBOL_GPL(spu_int_mask_set);

-u64 spu_int_mask_get(struct spu *spu, int class)
+static u64 int_mask_get(struct spu *spu, int class)
 {
 	return in_be64(&spu->priv1->int_mask_RW[class]);
 }
-EXPORT_SYMBOL_GPL(spu_int_mask_get);

-void spu_int_stat_clear(struct spu *spu, int class, u64 stat)
+static void int_stat_clear(struct spu *spu, int class, u64 stat)
 {
 	out_be64(&spu->priv1->int_stat_RW[class], stat);
 }
-EXPORT_SYMBOL_GPL(spu_int_stat_clear);

-u64 spu_int_stat_get(struct spu *spu, int class)
+static u64 int_stat_get(struct spu *spu, int class)
 {
 	return in_be64(&spu->priv1->int_stat_RW[class]);
 }
-EXPORT_SYMBOL_GPL(spu_int_stat_get);

-void spu_int_route_set(struct spu *spu, u64 route)
+static void int_route_set(struct spu *spu, u64 route)
 {
 	out_be64(&spu->priv1->int_route_RW, route);
 }
-EXPORT_SYMBOL_GPL(spu_int_route_set);

-u64 spu_mfc_dar_get(struct spu *spu)
+static u64 mfc_dar_get(struct spu *spu)
 {
 	return in_be64(&spu->priv1->mfc_dar_RW);
 }
-EXPORT_SYMBOL_GPL(spu_mfc_dar_get);

-u64 spu_mfc_dsisr_get(struct spu *spu)
+static u64 mfc_dsisr_get(struct spu *spu)
 {
 	return in_be64(&spu->priv1->mfc_dsisr_RW);
 }
-EXPORT_SYMBOL_GPL(spu_mfc_dsisr_get);

-void spu_mfc_dsisr_set(struct spu *spu, u64 dsisr)
+static void mfc_dsisr_set(struct spu *spu, u64 dsisr)
 {
 	out_be64(&spu->priv1->mfc_dsisr_RW, dsisr);
 }
-EXPORT_SYMBOL_GPL(spu_mfc_dsisr_set);

-void spu_mfc_sdr_set(struct spu *spu, u64 sdr)
+static void mfc_sdr_set(struct spu *spu, u64 sdr)
 {
 	out_be64(&spu->priv1->mfc_sdr_RW, sdr);
 }
-EXPORT_SYMBOL_GPL(spu_mfc_sdr_set);

-void spu_mfc_sr1_set(struct spu *spu, u64 sr1)
+static void mfc_sr1_set(struct spu *spu, u64 sr1)
 {
 	out_be64(&spu->priv1->mfc_sr1_RW, sr1);
 }
-EXPORT_SYMBOL_GPL(spu_mfc_sr1_set);

-u64 spu_mfc_sr1_get(struct spu *spu)
+static u64 mfc_sr1_get(struct spu *spu)
 {
 	return in_be64(&spu->priv1->mfc_sr1_RW);
 }
-EXPORT_SYMBOL_GPL(spu_mfc_sr1_get);

-void spu_mfc_tclass_id_set(struct spu *spu, u64 tclass_id)
+static void mfc_tclass_id_set(struct spu *spu, u64 tclass_id)
 {
 	out_be64(&spu->priv1->mfc_tclass_id_RW, tclass_id);
 }
-EXPORT_SYMBOL_GPL(spu_mfc_tclass_id_set);

-u64 spu_mfc_tclass_id_get(struct spu *spu)
+static u64 mfc_tclass_id_get(struct spu *spu)
 {
 	return in_be64(&spu->priv1->mfc_tclass_id_RW);
 }
-EXPORT_SYMBOL_GPL(spu_mfc_tclass_id_get);

-void spu_smm_pgsz_set(struct spu *spu, u64 pgsz)
+static void smm_pgsz_set(struct spu *spu, u64 pgsz)
 {
 	u64 smm_hid;
 	smm_hid = in_be64(&spu->priv1->smm_hid);
@@ -111,32 +115,52 @@
 	out_be64(&spu->priv1->smm_hid, smm_hid);
 }

-void spu_tlb_invalidate(struct spu *spu)
+static void tlb_invalidate(struct spu *spu)
 {
 	out_be64(&spu->priv1->tlb_invalidate_entry_W, 0ul);
 }
-EXPORT_SYMBOL_GPL(spu_tlb_invalidate);

-void spu_resource_allocation_groupID_set(struct spu *spu, u64 id)
+static void resource_allocation_groupID_set(struct spu *spu, u64 id)
 {
 	out_be64(&spu->priv1->resource_allocation_groupID_RW, id);
 }
-EXPORT_SYMBOL_GPL(spu_resource_allocation_groupID_set);

-u64 spu_resource_allocation_groupID_get(struct spu *spu)
+static u64 resource_allocation_groupID_get(struct spu *spu)
 {
 	return in_be64(&spu->priv1->resource_allocation_groupID_RW);
 }
-EXPORT_SYMBOL_GPL(spu_resource_allocation_groupID_get);

-void spu_resource_allocation_enable_set(struct spu *spu, u64 enable)
+static void resource_allocation_enable_set(struct spu *spu, u64 enable)
 {
 	out_be64(&spu->priv1->resource_allocation_enable_RW, enable);
 }
-EXPORT_SYMBOL_GPL(spu_resource_allocation_enable_set);

-u64 spu_resource_allocation_enable_get(struct spu *spu)
+static u64 resource_allocation_enable_get(struct spu *spu)
 {
 	return in_be64(&spu->priv1->resource_allocation_enable_RW);
 }
-EXPORT_SYMBOL_GPL(spu_resource_allocation_enable_get);
+
+const struct spu_priv1_ops spu_raw_priv1_ops =
+{
+	.int_mask_and = int_mask_and,
+	.int_mask_or = int_mask_or,
+	.int_mask_set = int_mask_set,
+	.int_mask_get = int_mask_get,
+	.int_stat_clear = int_stat_clear,
+	.int_stat_get = int_stat_get,
+	.int_route_set = int_route_set,
+	.mfc_dar_get = mfc_dar_get,
+	.mfc_dsisr_get = mfc_dsisr_get,
+	.mfc_dsisr_set = mfc_dsisr_set,
+	.mfc_sdr_set = mfc_sdr_set,
+	.mfc_sr1_set = mfc_sr1_set,
+	.mfc_sr1_get = mfc_sr1_get,
+	.mfc_tclass_id_set = mfc_tclass_id_set,
+	.mfc_tclass_id_get = mfc_tclass_id_get,
+	.smm_pgsz_set = smm_pgsz_set,
+	.tlb_invalidate = tlb_invalidate,
+	.resource_allocation_groupID_set = resource_allocation_groupID_set,
+	.resource_allocation_groupID_get = resource_allocation_groupID_get,
+	.resource_allocation_enable_set = resource_allocation_enable_set,
+	.resource_allocation_enable_get = resource_allocation_enable_get,
+};
Index: cell--alp--1/arch/powerpc/platforms/cell/spufs/hw_ops.c
===================================================================
--- cell--alp--1.orig/arch/powerpc/platforms/cell/spufs/hw_ops.c	2006-04-26 11:47:22.000000000 -0700
+++ cell--alp--1/arch/powerpc/platforms/cell/spufs/hw_ops.c	2006-04-26 11:47:43.000000000 -0700
@@ -32,6 +32,7 @@

 #include <asm/io.h>
 #include <asm/spu.h>
+#include <asm/spu_priv1.h>
 #include <asm/spu_csa.h>
 #include <asm/mmu_context.h>
 #include "spufs.h"
Index: cell--alp--1/arch/powerpc/platforms/cell/spufs/switch.c
===================================================================
--- cell--alp--1.orig/arch/powerpc/platforms/cell/spufs/switch.c	2006-04-26 11:47:22.000000000 -0700
+++ cell--alp--1/arch/powerpc/platforms/cell/spufs/switch.c	2006-04-26 11:47:43.000000000 -0700
@@ -46,6 +46,7 @@

 #include <asm/io.h>
 #include <asm/spu.h>
+#include <asm/spu_priv1.h>
 #include <asm/spu_csa.h>
 #include <asm/mmu_context.h>

Index: cell--alp--1/include/asm-powerpc/spu.h
===================================================================
--- cell--alp--1.orig/include/asm-powerpc/spu.h	2006-04-26 11:47:22.000000000 -0700
+++ cell--alp--1/include/asm-powerpc/spu.h	2006-04-26 11:47:43.000000000 -0700
@@ -192,30 +192,6 @@
 }
 #endif

-/* access to priv1 registers */
-void spu_int_mask_and(struct spu *spu, int class, u64 mask);
-void spu_int_mask_or(struct spu *spu, int class, u64 mask);
-void spu_int_mask_set(struct spu *spu, int class, u64 mask);
-u64 spu_int_mask_get(struct spu *spu, int class);
-void spu_int_stat_clear(struct spu *spu, int class, u64 stat);
-u64 spu_int_stat_get(struct spu *spu, int class);
-void spu_int_route_set(struct spu *spu, u64 route);
-u64 spu_mfc_dar_get(struct spu *spu);
-u64 spu_mfc_dsisr_get(struct spu *spu);
-void spu_mfc_dsisr_set(struct spu *spu, u64 dsisr);
-void spu_mfc_sdr_set(struct spu *spu, u64 sdr);
-void spu_mfc_sr1_set(struct spu *spu, u64 sr1);
-u64 spu_mfc_sr1_get(struct spu *spu);
-void spu_mfc_tclass_id_set(struct spu *spu, u64 tclass_id);
-u64 spu_mfc_tclass_id_get(struct spu *spu);
-void spu_smm_pgsz_set(struct spu *spu, u64 pgsz);
-void spu_tlb_invalidate(struct spu *spu);
-void spu_resource_allocation_groupID_set(struct spu *spu, u64 id);
-u64 spu_resource_allocation_groupID_get(struct spu *spu);
-void spu_resource_allocation_enable_set(struct spu *spu, u64 enable);
-u64 spu_resource_allocation_enable_get(struct spu *spu);
-
-
 /*
  * This defines the Local Store, Problem Area and Privlege Area of an SPU.
  */
Index: cell--alp--1/include/asm-powerpc/spu_priv1.h
===================================================================
--- cell--alp--1.orig/include/asm-powerpc/spu_priv1.h	2006-04-21 13:04:41.284693750 -0700
+++ cell--alp--1/include/asm-powerpc/spu_priv1.h	2006-04-26 11:53:39.000000000 -0700
@@ -0,0 +1,182 @@
+/*
+ * spu_priv1.h - This file defines the spu hypervisor abstractions.
+ *
+ *  Copyright 2006 Sony Corp.
+ *
+ *  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; version 2 of the License.
+ *
+ *  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
+ */
+
+#if !defined(_SPU_PRIV1_H)
+#define _SPU_PRIV1_H
+#if defined(__KERNEL__)
+
+struct spu;
+
+/* access to priv1 registers */
+
+struct spu_priv1_ops
+{
+	void (*int_mask_and) (struct spu *spu, int class, u64 mask);
+	void (*int_mask_or) (struct spu *spu, int class, u64 mask);
+	void (*int_mask_set) (struct spu *spu, int class, u64 mask);
+	u64 (*int_mask_get) (struct spu *spu, int class);
+	void (*int_stat_clear) (struct spu *spu, int class, u64 stat);
+	u64 (*int_stat_get) (struct spu *spu, int class);
+	void (*int_route_set) (struct spu *spu, u64 route);
+	u64 (*mfc_dar_get) (struct spu *spu);
+	u64 (*mfc_dsisr_get) (struct spu *spu);
+	void (*mfc_dsisr_set) (struct spu *spu, u64 dsisr);
+	void (*mfc_sdr_set) (struct spu *spu, u64 sdr);
+	void (*mfc_sr1_set) (struct spu *spu, u64 sr1);
+	u64 (*mfc_sr1_get) (struct spu *spu);
+	void (*mfc_tclass_id_set) (struct spu *spu, u64 tclass_id);
+	u64 (*mfc_tclass_id_get) (struct spu *spu);
+	void (*smm_pgsz_set) (struct spu *spu, u64 pgsz);
+	void (*tlb_invalidate) (struct spu *spu);
+	void (*resource_allocation_groupID_set) (struct spu *spu, u64 id);
+	u64 (*resource_allocation_groupID_get) (struct spu *spu);
+	void (*resource_allocation_enable_set) (struct spu *spu, u64 enable);
+	u64 (*resource_allocation_enable_get) (struct spu *spu);
+};
+
+extern const struct spu_priv1_ops* spu_priv1_ops;
+
+static inline void
+spu_int_mask_and (struct spu *spu, int class, u64 mask)
+{
+	spu_priv1_ops->int_mask_and(spu, class, mask);
+}
+
+static inline void
+spu_int_mask_or (struct spu *spu, int class, u64 mask)
+{
+	spu_priv1_ops->int_mask_or(spu, class, mask);
+}
+
+static inline void
+spu_int_mask_set (struct spu *spu, int class, u64 mask)
+{
+	spu_priv1_ops->int_mask_set(spu, class, mask);
+}
+
+static inline u64
+spu_int_mask_get (struct spu *spu, int class)
+{
+	return spu_priv1_ops->int_mask_get(spu, class);
+}
+
+static inline void
+spu_int_stat_clear (struct spu *spu, int class, u64 stat)
+{
+	spu_priv1_ops->int_stat_clear(spu, class, stat);
+}
+
+static inline u64
+spu_int_stat_get (struct spu *spu, int class)
+{
+	return spu_priv1_ops->int_stat_get (spu, class);
+}
+
+static inline void
+spu_int_route_set (struct spu *spu, u64 route)
+{
+	spu_priv1_ops->int_stat_get(spu, route);
+}
+
+static inline u64
+spu_mfc_dar_get (struct spu *spu)
+{
+	return spu_priv1_ops->mfc_dar_get(spu);
+}
+
+static inline u64
+spu_mfc_dsisr_get (struct spu *spu)
+{
+	return spu_priv1_ops->mfc_dsisr_get(spu);
+}
+
+static inline void
+spu_mfc_dsisr_set (struct spu *spu, u64 dsisr)
+{
+	spu_priv1_ops->mfc_dsisr_set(spu, dsisr);
+}
+
+static inline void
+spu_mfc_sdr_set (struct spu *spu, u64 sdr)
+{
+	spu_priv1_ops->mfc_sdr_set(spu, sdr);
+}
+
+static inline void
+spu_mfc_sr1_set (struct spu *spu, u64 sr1)
+{
+	spu_priv1_ops->mfc_sr1_set(spu, sr1);
+}
+
+static inline u64
+spu_mfc_sr1_get (struct spu *spu)
+{
+	return spu_priv1_ops->mfc_sr1_get(spu);
+}
+
+static inline void
+spu_mfc_tclass_id_set (struct spu *spu, u64 tclass_id)
+{
+	spu_priv1_ops->mfc_tclass_id_set(spu, tclass_id);
+}
+
+static inline u64
+spu_mfc_tclass_id_get (struct spu *spu)
+{
+	return spu_priv1_ops->mfc_tclass_id_get(spu);
+}
+
+static inline void
+spu_smm_pgsz_set (struct spu *spu, u64 pgsz)
+{
+	spu_priv1_ops->smm_pgsz_set(spu, pgsz);
+}
+
+static inline void
+spu_tlb_invalidate (struct spu *spu)
+{
+	spu_priv1_ops->tlb_invalidate(spu);
+}
+
+static inline void
+spu_resource_allocation_groupID_set (struct spu *spu, u64 id)
+{
+	spu_priv1_ops->resource_allocation_groupID_set(spu, id);
+}
+
+static inline u64
+spu_resource_allocation_groupID_get (struct spu *spu)
+{
+	return spu_priv1_ops->resource_allocation_groupID_get(spu);
+}
+
+static inline void
+spu_resource_allocation_enable_set (struct spu *spu, u64 enable)
+{
+	spu_priv1_ops->resource_allocation_enable_set(spu, enable);
+}
+
+static inline u64
+spu_resource_allocation_enable_get (struct spu *spu)
+{
+	return spu_priv1_ops->resource_allocation_enable_get(spu);
+}
+
+#endif /* __KERNEL__ */
+#endif




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