aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/platforms
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/platforms')
-rw-r--r--arch/powerpc/platforms/52xx/Makefile2
-rw-r--r--arch/powerpc/platforms/52xx/efika-pci.c119
-rw-r--r--arch/powerpc/platforms/52xx/efika-setup.c150
-rw-r--r--arch/powerpc/platforms/52xx/efika.c243
-rw-r--r--arch/powerpc/platforms/52xx/efika.h19
-rw-r--r--arch/powerpc/platforms/52xx/lite5200.c29
-rw-r--r--arch/powerpc/platforms/52xx/mpc52xx_common.c4
-rw-r--r--arch/powerpc/platforms/52xx/mpc52xx_pic.c10
-rw-r--r--arch/powerpc/platforms/83xx/Kconfig24
-rw-r--r--arch/powerpc/platforms/83xx/Makefile3
-rw-r--r--arch/powerpc/platforms/83xx/mpc8313_rdb.c99
-rw-r--r--arch/powerpc/platforms/83xx/mpc834x_itx.c2
-rw-r--r--arch/powerpc/platforms/83xx/mpc834x_mds.c (renamed from arch/powerpc/platforms/83xx/mpc834x_sys.c)95
-rw-r--r--arch/powerpc/platforms/83xx/mpc834x_sys.h23
-rw-r--r--arch/powerpc/platforms/83xx/mpc83xx.h18
-rw-r--r--arch/powerpc/platforms/85xx/Kconfig13
-rw-r--r--arch/powerpc/platforms/85xx/Makefile1
-rw-r--r--arch/powerpc/platforms/85xx/mpc8568_mds.c246
-rw-r--r--arch/powerpc/platforms/85xx/mpc85xx_ads.c7
-rw-r--r--arch/powerpc/platforms/85xx/mpc85xx_cds.c17
-rw-r--r--arch/powerpc/platforms/Makefile2
-rw-r--r--arch/powerpc/platforms/cell/pmu.c14
-rw-r--r--arch/powerpc/platforms/cell/spu_manage.c102
-rw-r--r--arch/powerpc/platforms/cell/spufs/context.c137
-rw-r--r--arch/powerpc/platforms/cell/spufs/file.c144
-rw-r--r--arch/powerpc/platforms/cell/spufs/run.c16
-rw-r--r--arch/powerpc/platforms/cell/spufs/sched.c386
-rw-r--r--arch/powerpc/platforms/cell/spufs/spufs.h50
-rw-r--r--arch/powerpc/platforms/celleb/htab.c19
-rw-r--r--arch/powerpc/platforms/embedded6xx/linkstation.c12
-rw-r--r--arch/powerpc/platforms/ps3/spu.c42
-rw-r--r--arch/powerpc/platforms/pseries/Makefile1
-rw-r--r--arch/powerpc/platforms/pseries/firmware.h17
-rw-r--r--arch/powerpc/platforms/pseries/kexec.c72
-rw-r--r--arch/powerpc/platforms/pseries/pci.c4
-rw-r--r--arch/powerpc/platforms/pseries/pseries.h36
-rw-r--r--arch/powerpc/platforms/pseries/ras.c2
-rw-r--r--arch/powerpc/platforms/pseries/ras.h9
-rw-r--r--arch/powerpc/platforms/pseries/setup.c60
-rw-r--r--arch/powerpc/platforms/pseries/smp.c1
40 files changed, 1365 insertions, 885 deletions
diff --git a/arch/powerpc/platforms/52xx/Makefile b/arch/powerpc/platforms/52xx/Makefile
index 795b713ec9e..07cdbcacf15 100644
--- a/arch/powerpc/platforms/52xx/Makefile
+++ b/arch/powerpc/platforms/52xx/Makefile
@@ -6,5 +6,5 @@ obj-y += mpc52xx_pic.o mpc52xx_common.o
obj-$(CONFIG_PCI) += mpc52xx_pci.o
endif
-obj-$(CONFIG_PPC_EFIKA) += efika-setup.o efika-pci.o
+obj-$(CONFIG_PPC_EFIKA) += efika.o
obj-$(CONFIG_PPC_LITE5200) += lite5200.o
diff --git a/arch/powerpc/platforms/52xx/efika-pci.c b/arch/powerpc/platforms/52xx/efika-pci.c
deleted file mode 100644
index 62e05b2a922..00000000000
--- a/arch/powerpc/platforms/52xx/efika-pci.c
+++ /dev/null
@@ -1,119 +0,0 @@
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/string.h>
-#include <linux/init.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/prom.h>
-#include <asm/machdep.h>
-#include <asm/sections.h>
-#include <asm/pci-bridge.h>
-#include <asm/rtas.h>
-
-#include "efika.h"
-
-#ifdef CONFIG_PCI
-/*
- * Access functions for PCI config space using RTAS calls.
- */
-static int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
- int len, u32 * val)
-{
- struct pci_controller *hose = bus->sysdata;
- unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
- | (((bus->number - hose->first_busno) & 0xff) << 16)
- | (hose->index << 24);
- int ret = -1;
- int rval;
-
- rval = rtas_call(rtas_token("read-pci-config"), 2, 2, &ret, addr, len);
- *val = ret;
- return rval ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
-}
-
-static int rtas_write_config(struct pci_bus *bus, unsigned int devfn,
- int offset, int len, u32 val)
-{
- struct pci_controller *hose = bus->sysdata;
- unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
- | (((bus->number - hose->first_busno) & 0xff) << 16)
- | (hose->index << 24);
- int rval;
-
- rval = rtas_call(rtas_token("write-pci-config"), 3, 1, NULL,
- addr, len, val);
- return rval ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops rtas_pci_ops = {
- rtas_read_config,
- rtas_write_config
-};
-
-void __init efika_pcisetup(void)
-{
- const int *bus_range;
- int len;
- struct pci_controller *hose;
- struct device_node *root;
- struct device_node *pcictrl;
-
- root = of_find_node_by_path("/");
- if (root == NULL) {
- printk(KERN_WARNING EFIKA_PLATFORM_NAME
- ": Unable to find the root node\n");
- return;
- }
-
- for (pcictrl = NULL;;) {
- pcictrl = of_get_next_child(root, pcictrl);
- if ((pcictrl == NULL) || (strcmp(pcictrl->name, "pci") == 0))
- break;
- }
-
- of_node_put(root);
-
- if (pcictrl == NULL) {
- printk(KERN_WARNING EFIKA_PLATFORM_NAME
- ": Unable to find the PCI bridge node\n");
- return;
- }
-
- bus_range = get_property(pcictrl, "bus-range", &len);
- if (bus_range == NULL || len < 2 * sizeof(int)) {
- printk(KERN_WARNING EFIKA_PLATFORM_NAME
- ": Can't get bus-range for %s\n", pcictrl->full_name);
- return;
- }
-
- if (bus_range[1] == bus_range[0])
- printk(KERN_INFO EFIKA_PLATFORM_NAME ": PCI bus %d",
- bus_range[0]);
- else
- printk(KERN_INFO EFIKA_PLATFORM_NAME ": PCI buses %d..%d",
- bus_range[0], bus_range[1]);
- printk(" controlled by %s\n", pcictrl->full_name);
- printk("\n");
-
- hose = pcibios_alloc_controller();
- if (!hose) {
- printk(KERN_WARNING EFIKA_PLATFORM_NAME
- ": Can't allocate PCI controller structure for %s\n",
- pcictrl->full_name);
- return;
- }
-
- hose->arch_data = of_node_get(pcictrl);
- hose->first_busno = bus_range[0];
- hose->last_busno = bus_range[1];
- hose->ops = &rtas_pci_ops;
-
- pci_process_bridge_OF_ranges(hose, pcictrl, 0);
-}
-
-#else
-void __init efika_pcisetup(void)
-{}
-#endif
diff --git a/arch/powerpc/platforms/52xx/efika-setup.c b/arch/powerpc/platforms/52xx/efika-setup.c
deleted file mode 100644
index 110c980ed1e..00000000000
--- a/arch/powerpc/platforms/52xx/efika-setup.c
+++ /dev/null
@@ -1,150 +0,0 @@
-/*
- *
- * Efika 5K2 platform setup
- * Some code really inspired from the lite5200b platform.
- *
- * Copyright (C) 2006 bplan GmbH
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- *
- */
-
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/utsrelease.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-#include <linux/initrd.h>
-#include <linux/timer.h>
-#include <linux/pci.h>
-
-#include <asm/pgtable.h>
-#include <asm/prom.h>
-#include <asm/time.h>
-#include <asm/machdep.h>
-#include <asm/rtas.h>
-#include <asm/of_device.h>
-#include <asm/of_platform.h>
-#include <asm/mpc52xx.h>
-
-#include "efika.h"
-
-static void efika_show_cpuinfo(struct seq_file *m)
-{
- struct device_node *root;
- const char *revision = NULL;
- const char *codegendescription = NULL;
- const char *codegenvendor = NULL;
-
- root = of_find_node_by_path("/");
- if (root) {
- revision = get_property(root, "revision", NULL);
- codegendescription =
- get_property(root, "CODEGEN,description", NULL);
- codegenvendor = get_property(root, "CODEGEN,vendor", NULL);
-
- of_node_put(root);
- }
-
- if (codegendescription)
- seq_printf(m, "machine\t\t: %s\n", codegendescription);
- else
- seq_printf(m, "machine\t\t: Efika\n");
-
- if (revision)
- seq_printf(m, "revision\t: %s\n", revision);
-
- if (codegenvendor)
- seq_printf(m, "vendor\t\t: %s\n", codegenvendor);
-
- of_node_put(root);
-}
-
-static void __init efika_setup_arch(void)
-{
- rtas_initialize();
-
-#ifdef CONFIG_BLK_DEV_INITRD
- initrd_below_start_ok = 1;
-
- if (initrd_start)
- ROOT_DEV = Root_RAM0;
- else
-#endif
- ROOT_DEV = Root_SDA2; /* sda2 (sda1 is for the kernel) */
-
- efika_pcisetup();
-
- if (ppc_md.progress)
- ppc_md.progress("Linux/PPC " UTS_RELEASE " runnung on Efika ;-)\n", 0x0);
-}
-
-static void __init efika_init(void)
-{
- struct device_node *np;
- struct device_node *cnp = NULL;
- const u32 *base;
-
- /* Find every child of the SOC node and add it to of_platform */
- np = of_find_node_by_name(NULL, "builtin");
- if (np) {
- char name[BUS_ID_SIZE];
- while ((cnp = of_get_next_child(np, cnp))) {
- strcpy(name, cnp->name);
-
- base = get_property(cnp, "reg", NULL);
- if (base == NULL)
- continue;
-
- snprintf(name+strlen(name), BUS_ID_SIZE, "@%x", *base);
- of_platform_device_create(cnp, name, NULL);
-
- printk(KERN_INFO EFIKA_PLATFORM_NAME" : Added %s (type '%s' at '%s') to the known devices\n", name, cnp->type, cnp->full_name);
- }
- }
-
- if (ppc_md.progress)
- ppc_md.progress(" Have fun with your Efika! ", 0x7777);
-}
-
-static int __init efika_probe(void)
-{
- char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
- "model", NULL);
-
- if (model == NULL)
- return 0;
- if (strcmp(model, "EFIKA5K2"))
- return 0;
-
- ISA_DMA_THRESHOLD = ~0L;
- DMA_MODE_READ = 0x44;
- DMA_MODE_WRITE = 0x48;
-
- return 1;
-}
-
-define_machine(efika)
-{
- .name = EFIKA_PLATFORM_NAME,
- .probe = efika_probe,
- .setup_arch = efika_setup_arch,
- .init = efika_init,
- .show_cpuinfo = efika_show_cpuinfo,
- .init_IRQ = mpc52xx_init_irq,
- .get_irq = mpc52xx_get_irq,
- .restart = rtas_restart,
- .power_off = rtas_power_off,
- .halt = rtas_halt,
- .set_rtc_time = rtas_set_rtc_time,
- .get_rtc_time = rtas_get_rtc_time,
- .progress = rtas_progress,
- .get_boot_time = rtas_get_boot_time,
- .calibrate_decr = generic_calibrate_decr,
- .phys_mem_access_prot = pci_phys_mem_access_prot,
-};
diff --git a/arch/powerpc/platforms/52xx/efika.c b/arch/powerpc/platforms/52xx/efika.c
new file mode 100644
index 00000000000..8de03411668
--- /dev/null
+++ b/arch/powerpc/platforms/52xx/efika.c
@@ -0,0 +1,243 @@
+/*
+ * Efika 5K2 platform code
+ * Some code really inspired from the lite5200b platform.
+ *
+ * Copyright (C) 2006 bplan GmbH
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/utsrelease.h>
+#include <linux/seq_file.h>
+#include <linux/string.h>
+#include <linux/root_dev.h>
+#include <linux/initrd.h>
+#include <linux/timer.h>
+#include <linux/pci.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/sections.h>
+#include <asm/pci-bridge.h>
+#include <asm/pgtable.h>
+#include <asm/prom.h>
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/rtas.h>
+#include <asm/of_device.h>
+#include <asm/of_platform.h>
+#include <asm/mpc52xx.h>
+
+
+#define EFIKA_PLATFORM_NAME "Efika"
+
+
+/* ------------------------------------------------------------------------ */
+/* PCI accesses thru RTAS */
+/* ------------------------------------------------------------------------ */
+
+#ifdef CONFIG_PCI
+
+/*
+ * Access functions for PCI config space using RTAS calls.
+ */
+static int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
+ int len, u32 * val)
+{
+ struct pci_controller *hose = bus->sysdata;
+ unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
+ | (((bus->number - hose->first_busno) & 0xff) << 16)
+ | (hose->index << 24);
+ int ret = -1;
+ int rval;
+
+ rval = rtas_call(rtas_token("read-pci-config"), 2, 2, &ret, addr, len);
+ *val = ret;
+ return rval ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+}
+
+static int rtas_write_config(struct pci_bus *bus, unsigned int devfn,
+ int offset, int len, u32 val)
+{
+ struct pci_controller *hose = bus->sysdata;
+ unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
+ | (((bus->number - hose->first_busno) & 0xff) << 16)
+ | (hose->index << 24);
+ int rval;
+
+ rval = rtas_call(rtas_token("write-pci-config"), 3, 1, NULL,
+ addr, len, val);
+ return rval ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops rtas_pci_ops = {
+ rtas_read_config,
+ rtas_write_config
+};
+
+
+void __init efika_pcisetup(void)
+{
+ const int *bus_range;
+ int len;
+ struct pci_controller *hose;
+ struct device_node *root;
+ struct device_node *pcictrl;
+
+ root = of_find_node_by_path("/");
+ if (root == NULL) {
+ printk(KERN_WARNING EFIKA_PLATFORM_NAME
+ ": Unable to find the root node\n");
+ return;
+ }
+
+ for (pcictrl = NULL;;) {
+ pcictrl = of_get_next_child(root, pcictrl);
+ if ((pcictrl == NULL) || (strcmp(pcictrl->name, "pci") == 0))
+ break;
+ }
+
+ of_node_put(root);
+
+ if (pcictrl == NULL) {
+ printk(KERN_WARNING EFIKA_PLATFORM_NAME
+ ": Unable to find the PCI bridge node\n");
+ return;
+ }
+
+ bus_range = get_property(pcictrl, "bus-range", &len);
+ if (bus_range == NULL || len < 2 * sizeof(int)) {
+ printk(KERN_WARNING EFIKA_PLATFORM_NAME
+ ": Can't get bus-range for %s\n", pcictrl->full_name);
+ return;
+ }
+
+ if (bus_range[1] == bus_range[0])
+ printk(KERN_INFO EFIKA_PLATFORM_NAME ": PCI bus %d",
+ bus_range[0]);
+ else
+ printk(KERN_INFO EFIKA_PLATFORM_NAME ": PCI buses %d..%d",
+ bus_range[0], bus_range[1]);
+ printk(" controlled by %s\n", pcictrl->full_name);
+ printk("\n");
+
+ hose = pcibios_alloc_controller();
+ if (!hose) {
+ printk(KERN_WARNING EFIKA_PLATFORM_NAME
+ ": Can't allocate PCI controller structure for %s\n",
+ pcictrl->full_name);
+ return;
+ }
+
+ hose->arch_data = of_node_get(pcictrl);
+ hose->first_busno = bus_range[0];
+ hose->last_busno = bus_range[1];
+ hose->ops = &rtas_pci_ops;
+
+ pci_process_bridge_OF_ranges(hose, pcictrl, 0);
+}
+
+#else
+void __init efika_pcisetup(void)
+{}
+#endif
+
+
+
+/* ------------------------------------------------------------------------ */
+/* Platform setup */
+/* ------------------------------------------------------------------------ */
+
+static void efika_show_cpuinfo(struct seq_file *m)
+{
+ struct device_node *root;
+ const char *revision = NULL;
+ const char *codegendescription = NULL;
+ const char *codegenvendor = NULL;
+
+ root = of_find_node_by_path("/");
+ if (!root)
+ return;
+
+ revision = get_property(root, "revision", NULL);
+ codegendescription =
+ get_property(root, "CODEGEN,description", NULL);
+ codegenvendor = get_property(root, "CODEGEN,vendor", NULL);
+
+ if (codegendescription)
+ seq_printf(m, "machine\t\t: %s\n", codegendescription);
+ else
+ seq_printf(m, "machine\t\t: Efika\n");
+
+ if (revision)
+ seq_printf(m, "revision\t: %s\n", revision);
+
+ if (codegenvendor)
+ seq_printf(m, "vendor\t\t: %s\n", codegenvendor);
+
+ of_node_put(root);
+}
+
+static void __init efika_setup_arch(void)
+{
+ rtas_initialize();
+
+#ifdef CONFIG_BLK_DEV_INITRD
+ initrd_below_start_ok = 1;
+
+ if (initrd_start)
+ ROOT_DEV = Root_RAM0;
+ else
+#endif
+ ROOT_DEV = Root_SDA2; /* sda2 (sda1 is for the kernel) */
+
+ efika_pcisetup();
+
+ if (ppc_md.progress)
+ ppc_md.progress("Linux/PPC " UTS_RELEASE " running on Efika ;-)\n", 0x0);
+}
+
+static int __init efika_probe(void)
+{
+ char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
+ "model", NULL);
+
+ if (model == NULL)
+ return 0;
+ if (strcmp(model, "EFIKA5K2"))
+ return 0;
+
+ ISA_DMA_THRESHOLD = ~0L;
+ DMA_MODE_READ = 0x44;
+ DMA_MODE_WRITE = 0x48;
+
+ return 1;
+}
+
+define_machine(efika)
+{
+ .name = EFIKA_PLATFORM_NAME,
+ .probe = efika_probe,
+ .setup_arch = efika_setup_arch,
+ .init = mpc52xx_declare_of_platform_devices,
+ .show_cpuinfo = efika_show_cpuinfo,
+ .init_IRQ = mpc52xx_init_irq,
+ .get_irq = mpc52xx_get_irq,
+ .restart = rtas_restart,
+ .power_off = rtas_power_off,
+ .halt = rtas_halt,
+ .set_rtc_time = rtas_set_rtc_time,
+ .get_rtc_time = rtas_get_rtc_time,
+ .progress = rtas_progress,
+ .get_boot_time = rtas_get_boot_time,
+ .calibrate_decr = generic_calibrate_decr,
+ .phys_mem_access_prot = pci_phys_mem_access_prot,
+};
+
diff --git a/arch/powerpc/platforms/52xx/efika.h b/arch/powerpc/platforms/52xx/efika.h
deleted file mode 100644
index 2f060fd097d..00000000000
--- a/arch/powerpc/platforms/52xx/efika.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * Efika 5K2 platform setup - Header file
- *
- * Copyright (C) 2006 bplan GmbH
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- *
- */
-
-#ifndef __ARCH_POWERPC_EFIKA__
-#define __ARCH_POWERPC_EFIKA__
-
-#define EFIKA_PLATFORM_NAME "Efika"
-
-extern void __init efika_pcisetup(void);
-
-#endif
diff --git a/arch/powerpc/platforms/52xx/lite5200.c b/arch/powerpc/platforms/52xx/lite5200.c
index cdb16bfa6ca..cc3b40de21d 100644
--- a/arch/powerpc/platforms/52xx/lite5200.c
+++ b/arch/powerpc/platforms/52xx/lite5200.c
@@ -51,13 +51,13 @@
*/
static void __init
-lite52xx_setup_cpu(void)
+lite5200_setup_cpu(void)
{
struct mpc52xx_gpio __iomem *gpio;
u32 port_config;
/* Map zones */
- gpio = mpc52xx_find_and_map("mpc52xx-gpio");
+ gpio = mpc52xx_find_and_map("mpc5200-gpio");
if (!gpio) {
printk(KERN_ERR __FILE__ ": "
"Error while mapping GPIO register for port config. "
@@ -85,12 +85,12 @@ error:
iounmap(gpio);
}
-static void __init lite52xx_setup_arch(void)
+static void __init lite5200_setup_arch(void)
{
struct device_node *np;
if (ppc_md.progress)
- ppc_md.progress("lite52xx_setup_arch()", 0);
+ ppc_md.progress("lite5200_setup_arch()", 0);
np = of_find_node_by_type(NULL, "cpu");
if (np) {
@@ -105,7 +105,7 @@ static void __init lite52xx_setup_arch(void)
/* CPU & Port mux setup */
mpc52xx_setup_cpu(); /* Generic */
- lite52xx_setup_cpu(); /* Platorm specific */
+ lite5200_setup_cpu(); /* Platorm specific */
#ifdef CONFIG_PCI
np = of_find_node_by_type(np, "pci");
@@ -126,7 +126,7 @@ static void __init lite52xx_setup_arch(void)
}
-void lite52xx_show_cpuinfo(struct seq_file *m)
+void lite5200_show_cpuinfo(struct seq_file *m)
{
struct device_node* np = of_find_all_nodes(NULL);
const char *model = NULL;
@@ -143,25 +143,26 @@ void lite52xx_show_cpuinfo(struct seq_file *m)
/*
* Called very early, MMU is off, device-tree isn't unflattened
*/
-static int __init lite52xx_probe(void)
+static int __init lite5200_probe(void)
{
unsigned long node = of_get_flat_dt_root();
const char *model = of_get_flat_dt_prop(node, "model", NULL);
- if (!of_flat_dt_is_compatible(node, "lite52xx"))
+ if (!of_flat_dt_is_compatible(node, "fsl,lite5200") &&
+ !of_flat_dt_is_compatible(node, "fsl,lite5200b"))
return 0;
- pr_debug("%s board w/ mpc52xx found\n", model ? model : "unknown");
+ pr_debug("%s board found\n", model ? model : "unknown");
return 1;
}
-define_machine(lite52xx) {
- .name = "lite52xx",
- .probe = lite52xx_probe,
- .setup_arch = lite52xx_setup_arch,
+define_machine(lite5200) {
+ .name = "lite5200",
+ .probe = lite5200_probe,
+ .setup_arch = lite5200_setup_arch,
.init = mpc52xx_declare_of_platform_devices,
.init_IRQ = mpc52xx_init_irq,
.get_irq = mpc52xx_get_irq,
- .show_cpuinfo = lite52xx_show_cpuinfo,
+ .show_cpuinfo = lite5200_show_cpuinfo,
.calibrate_decr = generic_calibrate_decr,
};
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_common.c b/arch/powerpc/platforms/52xx/mpc52xx_common.c
index cc40889074b..ed0cb694aea 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_common.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_common.c
@@ -83,8 +83,8 @@ mpc52xx_setup_cpu(void)
struct mpc52xx_xlb __iomem *xlb;
/* Map zones */
- cdm = mpc52xx_find_and_map("mpc52xx-cdm");
- xlb = mpc52xx_find_and_map("mpc52xx-xlb");
+ cdm = mpc52xx_find_and_map("mpc5200-cdm");
+ xlb = mpc52xx_find_and_map("mpc5200-xlb");
if (!cdm || !xlb) {
printk(KERN_ERR __FILE__ ": "
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
index cd91a6c3aaf..c75192567e5 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
@@ -383,16 +383,16 @@ void __init mpc52xx_init_irq(void)
struct device_node *picnode;
/* Remap the necessary zones */
- picnode = of_find_compatible_node(NULL, NULL, "mpc52xx-pic");
+ picnode = of_find_compatible_node(NULL, NULL, "mpc5200-pic");
- intr = mpc52xx_find_and_map("mpc52xx-pic");
+ intr = mpc52xx_find_and_map("mpc5200-pic");
if (!intr)
- panic(__FILE__ ": find_and_map failed on 'mpc52xx-pic'. "
+ panic(__FILE__ ": find_and_map failed on 'mpc5200-pic'. "
"Check node !");
- sdma = mpc52xx_find_and_map("mpc52xx-bestcomm");
+ sdma = mpc52xx_find_and_map("mpc5200-bestcomm");
if (!sdma)
- panic(__FILE__ ": find_and_map failed on 'mpc52xx-bestcomm'. "
+ panic(__FILE__ ": find_and_map failed on 'mpc5200-bestcomm'. "
"Check node !");
/* Disable all interrupt sources. */
diff --git a/arch/powerpc/platforms/83xx/Kconfig b/arch/powerpc/platforms/83xx/Kconfig
index edcd5b875b6..1aea1e69ff3 100644
--- a/arch/powerpc/platforms/83xx/Kconfig
+++ b/arch/powerpc/platforms/83xx/Kconfig
@@ -3,7 +3,13 @@ menu "Platform support"
choice
prompt "Machine Type"
- default MPC834x_SYS
+ default MPC834x_MDS
+
+config MPC8313_RDB
+ bool "Freescale MPC8313 RDB"
+ select DEFAULT_UIMAGE
+ help
+ This option enables support for the MPC8313 RDB board.
config MPC832x_MDS
bool "Freescale MPC832x MDS"
@@ -12,13 +18,13 @@ config MPC832x_MDS
help
This option enables support for the MPC832x MDS evaluation board.
-config MPC834x_SYS
- bool "Freescale MPC834x SYS"
+config MPC834x_MDS
+ bool "Freescale MPC834x MDS"
select DEFAULT_UIMAGE
help
- This option enables support for the MPC 834x SYS evaluation board.
+ This option enables support for the MPC 834x MDS evaluation board.
- Be aware that PCI buses can only function when SYS board is plugged
+ Be aware that PCI buses can only function when MDS board is plugged
into the PIB (Platform IO Board) board from Freescale which provide
3 PCI slots. The PIBs PCI initialization is the bootloader's
responsibility.
@@ -41,6 +47,12 @@ config MPC8360E_PB
endchoice
+config PPC_MPC831x
+ bool
+ select PPC_UDBG_16550
+ select PPC_INDIRECT_PCI
+ default y if MPC8313_RDB
+
config PPC_MPC832x
bool
select PPC_UDBG_16550
@@ -51,7 +63,7 @@ config MPC834x
bool
select PPC_UDBG_16550
select PPC_INDIRECT_PCI
- default y if MPC834x_SYS || MPC834x_ITX
+ default y if MPC834x_MDS || MPC834x_ITX
config PPC_MPC836x
bool
diff --git a/arch/powerpc/platforms/83xx/Makefile b/arch/powerpc/platforms/83xx/Makefile
index f1aa7e24a93..6c8199c4c38 100644
--- a/arch/powerpc/platforms/83xx/Makefile
+++ b/arch/powerpc/platforms/83xx/Makefile
@@ -3,7 +3,8 @@
#
obj-y := misc.o
obj-$(CONFIG_PCI) += pci.o
-obj-$(CONFIG_MPC834x_SYS) += mpc834x_sys.o
+obj-$(CONFIG_MPC8313_RDB) += mpc8313_rdb.o
+obj-$(CONFIG_MPC834x_MDS) += mpc834x_mds.o
obj-$(CONFIG_MPC834x_ITX) += mpc834x_itx.o
obj-$(CONFIG_MPC8360E_PB) += mpc8360e_pb.o
obj-$(CONFIG_MPC832x_MDS) += mpc832x_mds.o
diff --git a/arch/powerpc/platforms/83xx/mpc8313_rdb.c b/arch/powerpc/platforms/83xx/mpc8313_rdb.c
new file mode 100644
index 00000000000..c3b98c34eb6
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/mpc8313_rdb.c
@@ -0,0 +1,99 @@
+/*
+ * arch/powerpc/platforms/83xx/mpc8313_rdb.c
+ *
+ * Description: MPC8313x RDB board specific routines.
+ * This file is based on mpc834x_sys.c
+ * Author: Lo Wlison <r43300@freescale.com>
+ *
+ * Copyright (C) Freescale Semiconductor, Inc. 2006. All rights reserved.
+ *
+ * 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.
+ */
+
+#include <linux/pci.h>
+
+#include <asm/time.h>
+#include <asm/ipic.h>
+#include <asm/udbg.h>
+
+#include "mpc83xx.h"
+
+#undef DEBUG
+#ifdef DEBUG
+#define DBG(fmt...) udbg_printf(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+#ifndef CONFIG_PCI
+unsigned long isa_io_base = 0;
+unsigned long isa_mem_base = 0;
+#endif
+
+/* ************************************************************************
+ *
+ * Setup the architecture
+ *
+ */
+static void __init mpc8313_rdb_setup_arch(void)
+{
+ struct device_node *np;
+
+ if (ppc_md.progress)
+ ppc_md.progress("mpc8313_rdb_setup_arch()", 0);
+
+#ifdef CONFIG_PCI
+ for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
+ add_bridge(np);
+
+ ppc_md.pci_exclude_device = mpc83xx_exclude_device;
+#endif
+}
+
+void __init mpc8313_rdb_init_IRQ(void)
+{
+ struct device_node *np;
+
+ np = of_find_node_by_type(NULL, "ipic");
+ if (!np)
+ return;
+
+ ipic_init(np, 0);
+
+ /* Initialize the default interrupt mapping priorities,
+ * in case the boot rom changed something on us.
+ */
+ ipic_set_default_priority();
+}
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init mpc8313_rdb_probe(void)
+{
+ char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
+ "model", NULL);
+ if (model == NULL)
+ return 0;
+ if (strcmp(model, "MPC8313ERDB"))
+ return 0;
+
+ DBG("MPC8313 RDB found\n");
+
+ return 1;
+}
+
+define_machine(mpc8313_rdb) {
+ .name = "MPC8313 RDB",
+ .probe = mpc8313_rdb_probe,
+ .setup_arch = mpc8313_rdb_setup_arch,
+ .init_IRQ = mpc8313_rdb_init_IRQ,
+ .get_irq = ipic_get_irq,
+ .restart = mpc83xx_restart,
+ .time_init = mpc83xx_time_init,
+ .calibrate_decr = generic_calibrate_decr,
+ .progress = udbg_progress,
+};
diff --git a/arch/powerpc/platforms/83xx/mpc834x_itx.c b/arch/powerpc/platforms/83xx/mpc834x_itx.c
index 2446dea9407..443a3172f37 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_itx.c
+++ b/arch/powerpc/platforms/83xx/mpc834x_itx.c
@@ -38,8 +38,6 @@
#include "mpc83xx.h"
-#include <platforms/83xx/mpc834x_sys.h>
-
#ifndef CONFIG_PCI
unsigned long isa_io_base = 0;
unsigned long isa_mem_base = 0;
diff --git a/arch/powerpc/platforms/83xx/mpc834x_sys.c b/arch/powerpc/platforms/83xx/mpc834x_mds.c
index f30393f0b83..d2736da76c4 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_sys.c
+++ b/arch/powerpc/platforms/83xx/mpc834x_mds.c
@@ -1,7 +1,7 @@
/*
- * arch/powerpc/platforms/83xx/mpc834x_sys.c
+ * arch/powerpc/platforms/83xx/mpc834x_mds.c
*
- * MPC834x SYS board specific routines
+ * MPC834x MDS board specific routines
*
* Maintainer: Kumar Gala <galak@kernel.crashing.org>
*
@@ -43,17 +43,87 @@ unsigned long isa_io_base = 0;
unsigned long isa_mem_base = 0;
#endif
+#define BCSR5_INT_USB 0x02
+/* Note: This is only for PB, not for PB+PIB
+ * On PB only port0 is connected using ULPI */
+static int mpc834x_usb_cfg(void)
+{
+ unsigned long sccr, sicrl;
+ void __iomem *immap;
+ void __iomem *bcsr_regs = NULL;
+ u8 bcsr5;
+ struct device_node *np = NULL;
+ int port0_is_dr = 0;
+
+ if ((np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL)
+ port0_is_dr = 1;
+ if ((np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL){
+ if (port0_is_dr) {
+ printk(KERN_WARNING
+ "There is only one USB port on PB board! \n");
+ return -1;
+ } else if (!port0_is_dr)
+ /* No usb port enabled */
+ return -1;
+ }
+
+ immap = ioremap(get_immrbase(), 0x1000);
+ if (!immap)
+ return -1;
+
+ /* Configure clock */
+ sccr = in_be32(immap + MPC83XX_SCCR_OFFS);
+ if (port0_is_dr)
+ sccr |= MPC83XX_SCCR_USB_DRCM_11; /* 1:3 */
+ else
+ sccr |= MPC83XX_SCCR_USB_MPHCM_11; /* 1:3 */
+ out_be32(immap + MPC83XX_SCCR_OFFS, sccr);
+
+ /* Configure Pin */
+ sicrl = in_be32(immap + MPC83XX_SICRL_OFFS);
+ /* set port0 only */
+ if (port0_is_dr)
+ sicrl |= MPC83XX_SICRL_USB0;
+ else
+ sicrl &= ~(MPC83XX_SICRL_USB0);
+ out_be32(immap + MPC83XX_SICRL_OFFS, sicrl);
+
+ iounmap(immap);
+
+ /* Map BCSR area */
+ np = of_find_node_by_name(NULL, "bcsr");
+ if (np != 0) {
+ struct resource res;
+
+ of_address_to_resource(np, 0, &res);
+ bcsr_regs = ioremap(res.start, res.end - res.start + 1);
+ of_node_put(np);
+ }
+ if (!bcsr_regs)
+ return -1;
+
+ /*
+ * if MDS board is plug into PIB board,
+ * force to use the PHY on MDS board
+ */
+ bcsr5 = in_8(bcsr_regs + 5);
+ if (!(bcsr5 & BCSR5_INT_USB))
+ out_8(bcsr_regs + 5, (bcsr5 | BCSR5_INT_USB));
+ iounmap(bcsr_regs);
+ return 0;
+}
+
/* ************************************************************************
*
* Setup the architecture
*
*/
-static void __init mpc834x_sys_setup_arch(void)
+static void __init mpc834x_mds_setup_arch(void)
{
struct device_node *np;
if (ppc_md.progress)
- ppc_md.progress("mpc834x_sys_setup_arch()", 0);
+ ppc_md.progress("mpc834x_mds_setup_arch()", 0);
np = of_find_node_by_type(NULL, "cpu");
if (np != 0) {
@@ -65,6 +135,7 @@ static void __init mpc834x_sys_setup_arch(void)
loops_per_jiffy = 50000000 / HZ;
of_node_put(np);
}
+
#ifdef CONFIG_PCI
for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
add_bridge(np);
@@ -72,6 +143,8 @@ static void __init mpc834x_sys_setup_arch(void)
ppc_md.pci_exclude_device = mpc83xx_exclude_device;
#endif
+ mpc834x_usb_cfg();
+
#ifdef CONFIG_ROOT_NFS
ROOT_DEV = Root_NFS;
#else
@@ -79,7 +152,7 @@ static void __init mpc834x_sys_setup_arch(void)
#endif
}
-static void __init mpc834x_sys_init_IRQ(void)
+static void __init mpc834x_mds_init_IRQ(void)
{
struct device_node *np;
@@ -119,7 +192,7 @@ late_initcall(mpc834x_rtc_hookup);
/*
* Called very early, MMU is off, device-tree isn't unflattened
*/
-static int __init mpc834x_sys_probe(void)
+static int __init mpc834x_mds_probe(void)
{
/* We always match for now, eventually we should look at the flat
dev tree to ensure this is the board we are suppose to run on
@@ -127,11 +200,11 @@ static int __init mpc834x_sys_probe(void)
return 1;
}
-define_machine(mpc834x_sys) {
- .name = "MPC834x SYS",
- .probe = mpc834x_sys_probe,
- .setup_arch = mpc834x_sys_setup_arch,
- .init_IRQ = mpc834x_sys_init_IRQ,
+define_machine(mpc834x_mds) {
+ .name = "MPC834x MDS",
+ .probe = mpc834x_mds_probe,
+ .setup_arch = mpc834x_mds_setup_arch,
+ .init_IRQ = mpc834x_mds_init_IRQ,
.get_irq = ipic_get_irq,
.restart = mpc83xx_restart,
.time_init = mpc83xx_time_init,
diff --git a/arch/powerpc/platforms/83xx/mpc834x_sys.h b/arch/powerpc/platforms/83xx/mpc834x_sys.h
deleted file mode 100644
index 7d5bbef084e..00000000000
--- a/arch/powerpc/platforms/83xx/mpc834x_sys.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * arch/powerpc/platforms/83xx/mpc834x_sys.h
- *
- * MPC834X SYS common board definitions
- *
- * Maintainer: Kumar Gala <galak@kernel.crashing.org>
- *
- * 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.
- *
- */
-
-#ifndef __MACH_MPC83XX_SYS_H__
-#define __MACH_MPC83XX_SYS_H__
-
-#define PIRQA MPC83xx_IRQ_EXT4
-#define PIRQB MPC83xx_IRQ_EXT5
-#define PIRQC MPC83xx_IRQ_EXT6
-#define PIRQD MPC83xx_IRQ_EXT7
-
-#endif /* __MACH_MPC83XX_SYS_H__ */
diff --git a/arch/powerpc/platforms/83xx/mpc83xx.h b/arch/powerpc/platforms/83xx/mpc83xx.h
index 01cae106912..9cd03b59c8f 100644
--- a/arch/powerpc/platforms/83xx/mpc83xx.h
+++ b/arch/powerpc/platforms/83xx/mpc83xx.h
@@ -4,6 +4,24 @@
#include <linux/init.h>
#include <linux/device.h>
+/* System Clock Control Register */
+#define MPC83XX_SCCR_OFFS 0xA08
+#define MPC83XX_SCCR_USB_MPHCM_11 0x00c00000
+#define MPC83XX_SCCR_USB_MPHCM_01 0x00400000
+#define MPC83XX_SCCR_USB_MPHCM_10 0x00800000
+#define MPC83XX_SCCR_USB_DRCM_11 0x00300000
+#define MPC83XX_SCCR_USB_DRCM_01 0x00100000
+#define MPC83XX_SCCR_USB_DRCM_10 0x00200000
+
+/* system i/o configuration register low */
+#define MPC83XX_SICRL_OFFS 0x114
+#define MPC83XX_SICRL_USB0 0x40000000
+#define MPC83XX_SICRL_USB1 0x20000000
+
+/* system i/o configuration register high */
+#define MPC83XX_SICRH_OFFS 0x118
+#define MPC83XX_SICRH_USB_UTMI 0x00020000
+
/*
* Declaration for the various functions exported by the
* mpc83xx_* files. Mostly for use by mpc83xx_setup
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index 0584f3c7e88..0efdd2f1bab 100644
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -23,6 +23,13 @@ config MPC85xx_CDS
help
This option enables support for the MPC85xx CDS board
+config MPC8568_MDS
+ bool "Freescale MPC8568 MDS"
+ select DEFAULT_UIMAGE
+# select QUICC_ENGINE
+ help
+ This option enables support for the MPC8568 MDS board
+
endchoice
config MPC8540
@@ -36,6 +43,12 @@ config MPC8560
select PPC_INDIRECT_PCI
default y if MPC8560_ADS
+config MPC85xx
+ bool
+ select PPC_UDBG_16550
+ select PPC_INDIRECT_PCI
+ default y if MPC8540_ADS || MPC85xx_CDS || MPC8560_ADS || MPC8568_MDS
+
config PPC_INDIRECT_PCI_BE
bool
depends on PPC_85xx
diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index 282f5d0d015..e40e521816b 100644
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -5,3 +5,4 @@ obj-$(CONFIG_PPC_85xx) += misc.o pci.o
obj-$(CONFIG_MPC8540_ADS) += mpc85xx_ads.o
obj-$(CONFIG_MPC8560_ADS) += mpc85xx_ads.o
obj-$(CONFIG_MPC85xx_CDS) += mpc85xx_cds.o
+obj-$(CONFIG_MPC8568_MDS) += mpc8568_mds.o
diff --git a/arch/powerpc/platforms/85xx/mpc8568_mds.c b/arch/powerpc/platforms/85xx/mpc8568_mds.c
new file mode 100644
index 00000000000..0861d1107bc
--- /dev/null
+++ b/arch/powerpc/platforms/85xx/mpc8568_mds.c
@@ -0,0 +1,246 @@
+/*
+ * Copyright (C) Freescale Semicondutor, Inc. 2006-2007. All rights reserved.
+ *
+ * Author: Andy Fleming <afleming@freescale.com>
+ *
+ * Based on 83xx/mpc8360e_pb.c by:
+ * Li Yang <LeoLi@freescale.com>
+ * Yin Olivia <Hong-hua.Yin@freescale.com>
+ *
+ * Description:
+ * MPC8568E MDS PB board specific routines.
+ *
+ * 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.
+ */
+
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/reboot.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/major.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+#include <linux/initrd.h>
+#include <linux/module.h>
+#include <linux/fsl_devices.h>
+
+#include <asm/of_device.h>
+#include <asm/of_platform.h>
+#include <asm/system.h>
+#include <asm/atomic.h>
+#include <asm/time.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/bootinfo.h>
+#include <asm/pci-bridge.h>
+#include <asm/mpc85xx.h>
+#include <asm/irq.h>
+#include <mm/mmu_decl.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <sysdev/fsl_soc.h>
+#include <asm/qe.h>
+#include <asm/qe_ic.h>
+#include <asm/mpic.h>
+
+#include "mpc85xx.h"
+
+#undef DEBUG
+#ifdef DEBUG
+#define DBG(fmt...) udbg_printf(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+#ifndef CONFIG_PCI
+unsigned long isa_io_base = 0;
+unsigned long isa_mem_base = 0;
+#endif
+
+/* ************************************************************************
+ *
+ * Setup the architecture
+ *
+ */
+static void __init mpc8568_mds_setup_arch(void)
+{
+ struct device_node *np;
+ static u8 *bcsr_regs = NULL;
+
+
+ if (ppc_md.progress)
+ ppc_md.progress("mpc8568_mds_setup_arch()", 0);
+
+ np = of_find_node_by_type(NULL, "cpu");
+ if (np != NULL) {
+ const unsigned int *fp =
+ get_property(np, "clock-frequency", NULL);
+ if (fp != NULL)
+ loops_per_jiffy = *fp / HZ;
+ else
+ loops_per_jiffy = 50000000 / HZ;
+ of_node_put(np);
+ }
+
+ /* Map BCSR area */
+ np = of_find_node_by_name(NULL, "bcsr");
+ if (np != NULL) {
+ struct resource res;
+
+ of_address_to_resource(np, 0, &res);
+ bcsr_regs = ioremap(res.start, res.end - res.start +1);
+ of_node_put(np);
+ }
+
+#ifdef CONFIG_PCI
+ for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) {
+ add_bridge(np);
+ }
+ of_node_put(np);
+#endif
+
+#ifdef CONFIG_QUICC_ENGINE
+ if ((np = of_find_node_by_name(NULL, "qe")) != NULL) {
+ qe_reset();
+ of_node_put(np);
+ }
+
+ if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
+ struct device_node *ucc = NULL;
+
+ par_io_init(np);
+ of_node_put(np);
+
+ for ( ;(ucc = of_find_node_by_name(ucc, "ucc")) != NULL;)
+ par_io_of_config(ucc);
+
+ of_node_put(ucc);
+ }
+
+ if (bcsr_regs) {
+ u8 bcsr_phy;
+
+ /* Reset the Ethernet PHY */
+ bcsr_phy = in_be8(&bcsr_regs[9]);
+ bcsr_phy &= ~0x20;
+ out_be8(&bcsr_regs[9], bcsr_phy);
+
+ udelay(1000);
+
+ bcsr_phy = in_be8(&bcsr_regs[9]);
+ bcsr_phy |= 0x20;
+ out_be8(&bcsr_regs[9], bcsr_phy);
+
+ iounmap(bcsr_regs);
+ }
+
+#endif /* CONFIG_QUICC_ENGINE */
+}
+
+static struct of_device_id mpc8568_ids[] = {
+ { .type = "soc", },
+ { .compatible = "soc", },
+ { .type = "qe", },
+ {},
+};
+
+static int __init mpc8568_publish_devices(void)
+{
+ if (!machine_is(mpc8568_mds))
+ return 0;
+
+ /* Publish the QE devices */
+ of_platform_bus_probe(NULL,mpc8568_ids,NULL);
+
+ return 0;
+}
+device_initcall(mpc8568_publish_devices);
+
+static void __init mpc8568_mds_pic_init(void)
+{
+ struct mpic *mpic;
+ struct resource r;
+ struct device_node *np = NULL;
+
+ np = of_find_node_by_type(NULL, "open-pic");
+ if (!np)
+ return;
+
+ if (of_address_to_resource(np, 0, &r)) {
+ printk(KERN_ERR "Failed to map mpic register space\n");
+ of_node_put(np);
+ return;
+ }
+
+ mpic = mpic_alloc(np, r.start,
+ MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
+ 4, 0, " OpenPIC ");
+ BUG_ON(mpic == NULL);
+ of_node_put(np);
+
+ /* Internal Interrupts */
+ mpic_assign_isu(mpic, 0, r.start + 0x10200);
+ mpic_assign_isu(mpic, 1, r.start + 0x10280);
+ mpic_assign_isu(mpic, 2, r.start + 0x10300);
+ mpic_assign_isu(mpic, 3, r.start + 0x10380);
+ mpic_assign_isu(mpic, 4, r.start + 0x10400);
+ mpic_assign_isu(mpic, 5, r.start + 0x10480);
+ mpic_assign_isu(mpic, 6, r.start + 0x10500);
+ mpic_assign_isu(mpic, 7, r.start + 0x10580);
+ mpic_assign_isu(mpic, 8, r.start + 0x10600);
+ mpic_assign_isu(mpic, 9, r.start + 0x10680);
+ mpic_assign_isu(mpic, 10, r.start + 0x10700);
+ mpic_assign_isu(mpic, 11, r.start + 0x10780);
+
+ /* External Interrupts */
+ mpic_assign_isu(mpic, 12, r.start + 0x10000);
+ mpic_assign_isu(mpic, 13, r.start + 0x10080);
+ mpic_assign_isu(mpic, 14, r.start + 0x10100);
+
+ mpic_init(mpic);
+
+
+#ifdef CONFIG_QUICC_ENGINE
+ np = of_find_node_by_type(NULL, "qeic");
+ if (!np)
+ return;
+
+ qe_ic_init(np, 0);
+ of_node_put(np);
+#endif /* CONFIG_QUICC_ENGINE */
+}
+
+
+static int __init mpc8568_mds_probe(void)
+{
+ char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
+ "model", NULL);
+ if (model == NULL)
+ return 0;
+ if (strcmp(model, "MPC8568EMDS"))
+ return 0;
+
+ DBG("MPC8568EMDS found\n");
+
+ return 1;
+}
+
+
+define_machine(mpc8568_mds) {
+ .name = "MPC8568E MDS",
+ .probe = mpc8568_mds_probe,
+ .setup_arch = mpc8568_mds_setup_arch,
+ .init_IRQ = mpc8568_mds_pic_init,
+ .get_irq = mpic_get_irq,
+ .restart = mpc85xx_restart,
+ .calibrate_decr = generic_calibrate_decr,
+ .progress = udbg_progress,
+};
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
index bda2e55e6c4..c56fce57621 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
@@ -45,8 +45,7 @@ unsigned long isa_mem_base = 0;
#endif
#ifdef CONFIG_PCI
-int
-mpc85xx_exclude_device(u_char bus, u_char devfn)
+static int mpc85xx_exclude_device(u_char bus, u_char devfn)
{
if (bus == 0 && PCI_SLOT(devfn) == 0)
return PCIBIOS_DEVICE_NOT_FOUND;
@@ -69,7 +68,7 @@ static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
#endif /* CONFIG_CPM2 */
-void __init mpc85xx_ads_pic_init(void)
+static void __init mpc85xx_ads_pic_init(void)
{
struct mpic *mpic;
struct resource r;
@@ -254,7 +253,7 @@ static void __init mpc85xx_ads_setup_arch(void)
#endif
}
-void mpc85xx_ads_show_cpuinfo(struct seq_file *m)
+static void mpc85xx_ads_show_cpuinfo(struct seq_file *m)
{
uint pvid, svid, phid1;
uint memsize = total_memory;
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
index 953cd5dd3f5..abc0aca6de4 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
@@ -56,7 +56,6 @@ unsigned long isa_mem_base = 0;
static int cds_pci_slot = 2;
static volatile u8 *cadmus;
-
#ifdef CONFIG_PCI
#define ARCADIA_HOST_BRIDGE_IDSEL 17
@@ -64,8 +63,7 @@ static volatile u8 *cadmus;
extern int mpc85xx_pci2_busno;
-int
-mpc85xx_exclude_device(u_char bus, u_char devfn)
+static int mpc85xx_exclude_device(u_char bus, u_char devfn)
{
if (bus == 0 && PCI_SLOT(devfn) == 0)
return PCIBIOS_DEVICE_NOT_FOUND;
@@ -81,8 +79,7 @@ mpc85xx_exclude_device(u_char bus, u_char devfn)
return PCIBIOS_SUCCESSFUL;
}
-void __init
-mpc85xx_cds_pcibios_fixup(void)
+static void __init mpc85xx_cds_pcibios_fixup(void)
{
struct pci_dev *dev;
u_char c;
@@ -144,7 +141,7 @@ static void mpc85xx_8259_cascade(unsigned int irq, struct irq_desc *desc)
#endif /* PPC_I8259 */
#endif /* CONFIG_PCI */
-void __init mpc85xx_cds_pic_init(void)
+static void __init mpc85xx_cds_pic_init(void)
{
struct mpic *mpic;
struct resource r;
@@ -224,12 +221,10 @@ void __init mpc85xx_cds_pic_init(void)
#endif /* CONFIG_PPC_I8259 */
}
-
/*
* Setup the architecture
*/
-static void __init
-mpc85xx_cds_setup_arch(void)
+static void __init mpc85xx_cds_setup_arch(void)
{
struct device_node *cpu;
#ifdef CONFIG_PCI
@@ -276,9 +271,7 @@ mpc85xx_cds_setup_arch(void)
#endif
}
-
-void
-mpc85xx_cds_show_cpuinfo(struct seq_file *m)
+static void mpc85xx_cds_show_cpuinfo(struct seq_file *m)
{
uint pvid, svid, phid1;
uint memsize = total_memory;
diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile
index 65e612315b9..452004283f1 100644
--- a/arch/powerpc/platforms/Makefile
+++ b/arch/powerpc/platforms/Makefile
@@ -5,9 +5,9 @@ ifeq ($(CONFIG_PPC64),y)
obj-$(CONFIG_PPC_PMAC) += powermac/
endif
endif
-obj-$(CONFIG_PPC_MPC52xx) += 52xx/
obj-$(CONFIG_PPC_CHRP) += chrp/
obj-$(CONFIG_4xx) += 4xx/
+obj-$(CONFIG_PPC_MPC52xx) += 52xx/
obj-$(CONFIG_PPC_8xx) += 8xx/
obj-$(CONFIG_PPC_82xx) += 82xx/
obj-$(CONFIG_PPC_83xx) += 83xx/
diff --git a/arch/powerpc/platforms/cell/pmu.c b/arch/powerpc/platforms/cell/pmu.c
index d04ae1671e6..66ca4b5a1db 100644
--- a/arch/powerpc/platforms/cell/pmu.c
+++ b/arch/powerpc/platforms/cell/pmu.c
@@ -345,18 +345,12 @@ EXPORT_SYMBOL_GPL(cbe_read_trace_buffer);
* Enabling/disabling interrupts for the entire performance monitoring unit.
*/
-u32 cbe_query_pm_interrupts(u32 cpu)
-{
- return cbe_read_pm(cpu, pm_status);
-}
-EXPORT_SYMBOL_GPL(cbe_query_pm_interrupts);
-
-u32 cbe_clear_pm_interrupts(u32 cpu)
+u32 cbe_get_and_clear_pm_interrupts(u32 cpu)
{
/* Reading pm_status clears the interrupt bits. */
- return cbe_query_pm_interrupts(cpu);
+ return cbe_read_pm(cpu, pm_status);
}
-EXPORT_SYMBOL_GPL(cbe_clear_pm_interrupts);
+EXPORT_SYMBOL_GPL(cbe_get_and_clear_pm_interrupts);
void cbe_enable_pm_interrupts(u32 cpu, u32 thread, u32 mask)
{
@@ -371,7 +365,7 @@ EXPORT_SYMBOL_GPL(cbe_enable_pm_interrupts);
void cbe_disable_pm_interrupts(u32 cpu)
{
- cbe_clear_pm_interrupts(cpu);
+ cbe_get_and_clear_pm_interrupts(cpu);
cbe_write_pm(cpu, pm_status, 0);
}
EXPORT_SYMBOL_GPL(cbe_disable_pm_interrupts);
diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c
index d8b39fe39cd..e34599f53d2 100644
--- a/arch/powerpc/platforms/cell/spu_manage.c
+++ b/arch/powerpc/platforms/cell/spu_manage.c
@@ -59,63 +59,6 @@ static u64 __init find_spu_unit_number(struct device_node *spe)
return 0;
}
-static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe,
- const char *prop)
-{
- const struct address_prop {
- unsigned long address;
- unsigned int len;
- } __attribute__((packed)) *p;
- int proplen;
-
- unsigned long start_pfn, nr_pages;
- struct pglist_data *pgdata;
- struct zone *zone;
- int ret;
-
- p = get_property(spe, prop, &proplen);
- WARN_ON(proplen != sizeof (*p));
-
- start_pfn = p->address >> PAGE_SHIFT;
- nr_pages = ((unsigned long)p->len + PAGE_SIZE - 1) >> PAGE_SHIFT;
-
- pgdata = NODE_DATA(spu->node);
- zone = pgdata->node_zones;
-
- ret = __add_pages(zone, start_pfn, nr_pages);
-
- return ret;
-}
-
-static void __iomem * __init map_spe_prop(struct spu *spu,
- struct device_node *n, const char *name)
-{
- const struct address_prop {
- unsigned long address;
- unsigned int len;
- } __attribute__((packed)) *prop;
-
- const void *p;
- int proplen;
- void __iomem *ret = NULL;
- int err = 0;
-
- p = get_property(n, name, &proplen);
- if (proplen != sizeof (struct address_prop))
- return NULL;
-
- prop = p;
-
- err = cell_spuprop_present(spu, n, name);
- if (err && (err != -EEXIST))
- goto out;
-
- ret = ioremap(prop->address, prop->len);
-
- out:
- return ret;
-}
-
static void spu_unmap(struct spu *spu)
{
if (!firmware_has_feature(FW_FEATURE_LPAR))
@@ -157,6 +100,23 @@ static int __init spu_map_interrupts_old(struct spu *spu,
return spu->irqs[2] == NO_IRQ ? -EINVAL : 0;
}
+static void __iomem * __init spu_map_prop_old(struct spu *spu,
+ struct device_node *n,
+ const char *name)
+{
+ const struct address_prop {
+ unsigned long address;
+ unsigned int len;
+ } __attribute__((packed)) *prop;
+ int proplen;
+
+ prop = get_property(n, name, &proplen);
+ if (prop == NULL || proplen != sizeof (struct address_prop))
+ return NULL;
+
+ return ioremap(prop->address, prop->len);
+}
+
static int __init spu_map_device_old(struct spu *spu)
{
struct device_node *node = spu->devnode;
@@ -175,7 +135,7 @@ static int __init spu_map_device_old(struct spu *spu)
/* we use local store as ram, not io memory */
spu->local_store = (void __force *)
- map_spe_prop(spu, node, "local-store");
+ spu_map_prop_old(spu, node, "local-store");
if (!spu->local_store)
goto out;
@@ -184,16 +144,16 @@ static int __init spu_map_device_old(struct spu *spu)
goto out_unmap;
spu->problem_phys = *(unsigned long *)prop;
- spu->problem = map_spe_prop(spu, node, "problem");
+ spu->problem = spu_map_prop_old(spu, node, "problem");
if (!spu->problem)
goto out_unmap;
- spu->priv2 = map_spe_prop(spu, node, "priv2");
+ spu->priv2 = spu_map_prop_old(spu, node, "priv2");
if (!spu->priv2)
goto out_unmap;
if (!firmware_has_feature(FW_FEATURE_LPAR)) {
- spu->priv1 = map_spe_prop(spu, node, "priv1");
+ spu->priv1 = spu_map_prop_old(spu, node, "priv1");
if (!spu->priv1)
goto out_unmap;
}
@@ -245,34 +205,20 @@ static int spu_map_resource(struct spu *spu, int nr,
void __iomem** virt, unsigned long *phys)
{
struct device_node *np = spu->devnode;
- unsigned long start_pfn, nr_pages;
- struct pglist_data *pgdata;
- struct zone *zone;
struct resource resource = { };
unsigned long len;
int ret;
ret = of_address_to_resource(np, nr, &resource);
if (ret)
- goto out;
-
+ return ret;
if (phys)
*phys = resource.start;
len = resource.end - resource.start + 1;
*virt = ioremap(resource.start, len);
if (!*virt)
- ret = -EINVAL;
-
- start_pfn = resource.start >> PAGE_SHIFT;
- nr_pages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT;
-
- pgdata = NODE_DATA(spu->node);
- zone = pgdata->node_zones;
-
- ret = __add_pages(zone, start_pfn, nr_pages);
-
-out:
- return ret;
+ return -EINVAL;
+ return 0;
}
static int __init spu_map_device(struct spu *spu)
diff --git a/arch/powerpc/platforms/cell/spufs/context.c b/arch/powerpc/platforms/cell/spufs/context.c
index 0870009f56d..04ad2e364e9 100644
--- a/arch/powerpc/platforms/cell/spufs/context.c
+++ b/arch/powerpc/platforms/cell/spufs/context.c
@@ -42,7 +42,7 @@ struct spu_context *alloc_spu_context(struct spu_gang *gang)
}
spin_lock_init(&ctx->mmio_lock);
kref_init(&ctx->kref);
- init_rwsem(&ctx->state_sema);
+ mutex_init(&ctx->state_mutex);
init_MUTEX(&ctx->run_sema);
init_waitqueue_head(&ctx->ibox_wq);
init_waitqueue_head(&ctx->wbox_wq);
@@ -53,6 +53,10 @@ struct spu_context *alloc_spu_context(struct spu_gang *gang)
ctx->owner = get_task_mm(current);
if (gang)
spu_gang_add_ctx(gang, ctx);
+ ctx->rt_priority = current->rt_priority;
+ ctx->policy = current->policy;
+ ctx->prio = current->prio;
+ INIT_DELAYED_WORK(&ctx->sched_work, spu_sched_tick);
goto out;
out_free:
kfree(ctx);
@@ -65,9 +69,9 @@ void destroy_spu_context(struct kref *kref)
{
struct spu_context *ctx;
ctx = container_of(kref, struct spu_context, kref);
- down_write(&ctx->state_sema);
+ mutex_lock(&ctx->state_mutex);
spu_deactivate(ctx);
- up_write(&ctx->state_sema);
+ mutex_unlock(&ctx->state_mutex);
spu_fini_csa(&ctx->csa);
if (ctx->gang)
spu_gang_remove_ctx(ctx->gang, ctx);
@@ -96,107 +100,102 @@ void spu_forget(struct spu_context *ctx)
spu_release(ctx);
}
-void spu_acquire(struct spu_context *ctx)
-{
- down_read(&ctx->state_sema);
-}
-
-void spu_release(struct spu_context *ctx)
-{
- up_read(&ctx->state_sema);
-}
-
void spu_unmap_mappings(struct spu_context *ctx)
{
if (ctx->local_store)
unmap_mapping_range(ctx->local_store, 0, LS_SIZE, 1);
if (ctx->mfc)
- unmap_mapping_range(ctx->mfc, 0, 0x4000, 1);
+ unmap_mapping_range(ctx->mfc, 0, 0x1000, 1);
if (ctx->cntl)
- unmap_mapping_range(ctx->cntl, 0, 0x4000, 1);
+ unmap_mapping_range(ctx->cntl, 0, 0x1000, 1);
if (ctx->signal1)
- unmap_mapping_range(ctx->signal1, 0, 0x4000, 1);
+ unmap_mapping_range(ctx->signal1, 0, PAGE_SIZE, 1);
if (ctx->signal2)
- unmap_mapping_range(ctx->signal2, 0, 0x4000, 1);
+ unmap_mapping_range(ctx->signal2, 0, PAGE_SIZE, 1);
+ if (ctx->mss)
+ unmap_mapping_range(ctx->mss, 0, 0x1000, 1);
+ if (ctx->psmap)
+ unmap_mapping_range(ctx->psmap, 0, 0x20000, 1);
}
+/**
+ * spu_acquire_exclusive - lock spu contex and protect against userspace access
+ * @ctx: spu contex to lock
+ *
+ * Note:
+ * Returns 0 and with the context locked on success
+ * Returns negative error and with the context _unlocked_ on failure.
+ */
int spu_acquire_exclusive(struct spu_context *ctx)
{
- int ret = 0;
+ int ret = -EINVAL;
- down_write(&ctx->state_sema);
- /* ctx is about to be freed, can't acquire any more */
- if (!ctx->owner) {
- ret = -EINVAL;
- goto out;
- }
+ spu_acquire(ctx);
+ /*
+ * Context is about to be freed, so we can't acquire it anymore.
+ */
+ if (!ctx->owner)
+ goto out_unlock;
if (ctx->state == SPU_STATE_SAVED) {
ret = spu_activate(ctx, 0);
if (ret)
- goto out;
- ctx->state = SPU_STATE_RUNNABLE;
+ goto out_unlock;
} else {
- /* We need to exclude userspace access to the context. */
+ /*
+ * We need to exclude userspace access to the context.
+ *
+ * To protect against memory access we invalidate all ptes
+ * and make sure the pagefault handlers block on the mutex.
+ */
spu_unmap_mappings(ctx);
}
-out:
- if (ret)
- up_write(&ctx->state_sema);
+ return 0;
+
+ out_unlock:
+ spu_release(ctx);
return ret;
}
-int spu_acquire_runnable(struct spu_context *ctx)
+/**
+ * spu_acquire_runnable - lock spu contex and make sure it is in runnable state
+ * @ctx: spu contex to lock
+ *
+ * Note:
+ * Returns 0 and with the context locked on success
+ * Returns negative error and with the context _unlocked_ on failure.
+ */
+int spu_acquire_runnable(struct spu_context *ctx, unsigned long flags)
{
- int ret = 0;
-
- down_read(&ctx->state_sema);
- if (ctx->state == SPU_STATE_RUNNABLE) {
- ctx->spu->prio = current->prio;
- return 0;
- }
- up_read(&ctx->state_sema);
-
- down_write(&ctx->state_sema);
- /* ctx is about to be freed, can't acquire any more */
- if (!ctx->owner) {
- ret = -EINVAL;
- goto out;
- }
+ int ret = -EINVAL;
+ spu_acquire(ctx);
if (ctx->state == SPU_STATE_SAVED) {
- ret = spu_activate(ctx, 0);
+ /*
+ * Context is about to be freed, so we can't acquire it anymore.
+ */
+ if (!ctx->owner)
+ goto out_unlock;
+ ret = spu_activate(ctx, flags);
if (ret)
- goto out;
- ctx->state = SPU_STATE_RUNNABLE;
+ goto out_unlock;
}
- downgrade_write(&ctx->state_sema);
- /* On success, we return holding the lock */
-
- return ret;
-out:
- /* Release here, to simplify calling code. */
- up_write(&ctx->state_sema);
+ return 0;
+ out_unlock:
+ spu_release(ctx);
return ret;
}
+/**
+ * spu_acquire_saved - lock spu contex and make sure it is in saved state
+ * @ctx: spu contex to lock
+ */
void spu_acquire_saved(struct spu_context *ctx)
{
- down_read(&ctx->state_sema);
-
- if (ctx->state == SPU_STATE_SAVED)
- return;
-
- up_read(&ctx->state_sema);
- down_write(&ctx->state_sema);
-
- if (ctx->state == SPU_STATE_RUNNABLE) {
+ spu_acquire(ctx);
+ if (ctx->state != SPU_STATE_SAVED)
spu_deactivate(ctx);
- ctx->state = SPU_STATE_SAVED;
- }
-
- downgrade_write(&ctx->state_sema);
}
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index af9e9455a70..b00653d69c0 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -45,8 +45,8 @@ spufs_mem_open(struct inode *inode, struct file *file)
struct spufs_inode_info *i = SPUFS_I(inode);
struct spu_context *ctx = i->i_ctx;
file->private_data = ctx;
- file->f_mapping = inode->i_mapping;
ctx->local_store = inode->i_mapping;
+ smp_wmb();
return 0;
}
@@ -95,39 +95,38 @@ spufs_mem_write(struct file *file, const char __user *buffer,
return ret;
}
-static struct page *
-spufs_mem_mmap_nopage(struct vm_area_struct *vma,
- unsigned long address, int *type)
+static unsigned long spufs_mem_mmap_nopfn(struct vm_area_struct *vma,
+ unsigned long address)
{
- struct page *page = NOPAGE_SIGBUS;
-
struct spu_context *ctx = vma->vm_file->private_data;
- unsigned long offset = address - vma->vm_start;
+ unsigned long pfn, offset = address - vma->vm_start;
+
offset += vma->vm_pgoff << PAGE_SHIFT;
+ if (offset >= LS_SIZE)
+ return NOPFN_SIGBUS;
+
spu_acquire(ctx);
if (ctx->state == SPU_STATE_SAVED) {
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
& ~_PAGE_NO_CACHE);
- page = vmalloc_to_page(ctx->csa.lscsa->ls + offset);
+ pfn = vmalloc_to_pfn(ctx->csa.lscsa->ls + offset);
} else {
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
- | _PAGE_NO_CACHE);
- page = pfn_to_page((ctx->spu->local_store_phys + offset)
- >> PAGE_SHIFT);
+ | _PAGE_NO_CACHE);
+ pfn = (ctx->spu->local_store_phys + offset) >> PAGE_SHIFT;
}
- spu_release(ctx);
+ vm_insert_pfn(vma, address, pfn);
- if (type)
- *type = VM_FAULT_MINOR;
+ spu_release(ctx);
- page_cache_get(page);
- return page;
+ return NOPFN_REFAULT;
}
+
static struct vm_operations_struct spufs_mem_mmap_vmops = {
- .nopage = spufs_mem_mmap_nopage,
+ .nopfn = spufs_mem_mmap_nopfn,
};
static int
@@ -136,7 +135,7 @@ spufs_mem_mmap(struct file *file, struct vm_area_struct *vma)
if (!(vma->vm_flags & VM_SHARED))
return -EINVAL;
- vma->vm_flags |= VM_IO;
+ vma->vm_flags |= VM_IO | VM_PFNMAP;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE);
@@ -152,49 +151,42 @@ static const struct file_operations spufs_mem_fops = {
.mmap = spufs_mem_mmap,
};
-static struct page *spufs_ps_nopage(struct vm_area_struct *vma,
+static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma,
unsigned long address,
- int *type, unsigned long ps_offs,
+ unsigned long ps_offs,
unsigned long ps_size)
{
- struct page *page = NOPAGE_SIGBUS;
- int fault_type = VM_FAULT_SIGBUS;
struct spu_context *ctx = vma->vm_file->private_data;
- unsigned long offset = address - vma->vm_start;
- unsigned long area;
+ unsigned long area, offset = address - vma->vm_start;
int ret;
offset += vma->vm_pgoff << PAGE_SHIFT;
if (offset >= ps_size)
- goto out;
+ return NOPFN_SIGBUS;
- ret = spu_acquire_runnable(ctx);
+ /* error here usually means a signal.. we might want to test
+ * the error code more precisely though
+ */
+ ret = spu_acquire_runnable(ctx, 0);
if (ret)
- goto out;
+ return NOPFN_REFAULT;
area = ctx->spu->problem_phys + ps_offs;
- page = pfn_to_page((area + offset) >> PAGE_SHIFT);
- fault_type = VM_FAULT_MINOR;
- page_cache_get(page);
-
+ vm_insert_pfn(vma, address, (area + offset) >> PAGE_SHIFT);
spu_release(ctx);
- out:
- if (type)
- *type = fault_type;
-
- return page;
+ return NOPFN_REFAULT;
}
#if SPUFS_MMAP_4K
-static struct page *spufs_cntl_mmap_nopage(struct vm_area_struct *vma,
- unsigned long address, int *type)
+static unsigned long spufs_cntl_mmap_nopfn(struct vm_area_struct *vma,
+ unsigned long address)
{
- return spufs_ps_nopage(vma, address, type, 0x4000, 0x1000);
+ return spufs_ps_nopfn(vma, address, 0x4000, 0x1000);
}
static struct vm_operations_struct spufs_cntl_mmap_vmops = {
- .nopage = spufs_cntl_mmap_nopage,
+ .nopfn = spufs_cntl_mmap_nopfn,
};
/*
@@ -205,7 +197,7 @@ static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma)
if (!(vma->vm_flags & VM_SHARED))
return -EINVAL;
- vma->vm_flags |= VM_IO;
+ vma->vm_flags |= VM_IO | VM_PFNMAP;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE | _PAGE_GUARDED);
@@ -243,8 +235,8 @@ static int spufs_cntl_open(struct inode *inode, struct file *file)
struct spu_context *ctx = i->i_ctx;
file->private_data = ctx;
- file->f_mapping = inode->i_mapping;
ctx->cntl = inode->i_mapping;
+ smp_wmb();
return simple_attr_open(inode, file, spufs_cntl_get,
spufs_cntl_set, "0x%08lx");
}
@@ -728,8 +720,8 @@ static int spufs_signal1_open(struct inode *inode, struct file *file)
struct spufs_inode_info *i = SPUFS_I(inode);
struct spu_context *ctx = i->i_ctx;
file->private_data = ctx;
- file->f_mapping = inode->i_mapping;
ctx->signal1 = inode->i_mapping;
+ smp_wmb();
return nonseekable_open(inode, file);
}
@@ -791,23 +783,23 @@ static ssize_t spufs_signal1_write(struct file *file, const char __user *buf,
return 4;
}
-static struct page *spufs_signal1_mmap_nopage(struct vm_area_struct *vma,
- unsigned long address, int *type)
+static unsigned long spufs_signal1_mmap_nopfn(struct vm_area_struct *vma,
+ unsigned long address)
{
#if PAGE_SIZE == 0x1000
- return spufs_ps_nopage(vma, address, type, 0x14000, 0x1000);
+ return spufs_ps_nopfn(vma, address, 0x14000, 0x1000);
#elif PAGE_SIZE == 0x10000
/* For 64k pages, both signal1 and signal2 can be used to mmap the whole
* signal 1 and 2 area
*/
- return spufs_ps_nopage(vma, address, type, 0x10000, 0x10000);
+ return spufs_ps_nopfn(vma, address, 0x10000, 0x10000);
#else
#error unsupported page size
#endif
}
static struct vm_operations_struct spufs_signal1_mmap_vmops = {
- .nopage = spufs_signal1_mmap_nopage,
+ .nopfn = spufs_signal1_mmap_nopfn,
};
static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma)
@@ -815,7 +807,7 @@ static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma)
if (!(vma->vm_flags & VM_SHARED))
return -EINVAL;
- vma->vm_flags |= VM_IO;
+ vma->vm_flags |= VM_IO | VM_PFNMAP;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE | _PAGE_GUARDED);
@@ -835,8 +827,8 @@ static int spufs_signal2_open(struct inode *inode, struct file *file)
struct spufs_inode_info *i = SPUFS_I(inode);
struct spu_context *ctx = i->i_ctx;
file->private_data = ctx;
- file->f_mapping = inode->i_mapping;
ctx->signal2 = inode->i_mapping;
+ smp_wmb();
return nonseekable_open(inode, file);
}
@@ -899,23 +891,23 @@ static ssize_t spufs_signal2_write(struct file *file, const char __user *buf,
}
#if SPUFS_MMAP_4K
-static struct page *spufs_signal2_mmap_nopage(struct vm_area_struct *vma,
- unsigned long address, int *type)
+static unsigned long spufs_signal2_mmap_nopfn(struct vm_area_struct *vma,
+ unsigned long address)
{
#if PAGE_SIZE == 0x1000
- return spufs_ps_nopage(vma, address, type, 0x1c000, 0x1000);
+ return spufs_ps_nopfn(vma, address, 0x1c000, 0x1000);
#elif PAGE_SIZE == 0x10000
/* For 64k pages, both signal1 and signal2 can be used to mmap the whole
* signal 1 and 2 area
*/
- return spufs_ps_nopage(vma, address, type, 0x10000, 0x10000);
+ return spufs_ps_nopfn(vma, address, 0x10000, 0x10000);
#else
#error unsupported page size
#endif
}
static struct vm_operations_struct spufs_signal2_mmap_vmops = {
- .nopage = spufs_signal2_mmap_nopage,
+ .nopfn = spufs_signal2_mmap_nopfn,
};
static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma)
@@ -923,7 +915,7 @@ static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma)
if (!(vma->vm_flags & VM_SHARED))
return -EINVAL;
- vma->vm_flags |= VM_IO;
+ vma->vm_flags |= VM_IO | VM_PFNMAP;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE | _PAGE_GUARDED);
@@ -1000,14 +992,14 @@ DEFINE_SIMPLE_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get,
spufs_signal2_type_set, "%llu");
#if SPUFS_MMAP_4K
-static struct page *spufs_mss_mmap_nopage(struct vm_area_struct *vma,
- unsigned long address, int *type)
+static unsigned long spufs_mss_mmap_nopfn(struct vm_area_struct *vma,
+ unsigned long address)
{
- return spufs_ps_nopage(vma, address, type, 0x0000, 0x1000);
+ return spufs_ps_nopfn(vma, address, 0x0000, 0x1000);
}
static struct vm_operations_struct spufs_mss_mmap_vmops = {
- .nopage = spufs_mss_mmap_nopage,
+ .nopfn = spufs_mss_mmap_nopfn,
};
/*
@@ -1018,7 +1010,7 @@ static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma)
if (!(vma->vm_flags & VM_SHARED))
return -EINVAL;
- vma->vm_flags |= VM_IO;
+ vma->vm_flags |= VM_IO | VM_PFNMAP;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE | _PAGE_GUARDED);
@@ -1032,8 +1024,11 @@ static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma)
static int spufs_mss_open(struct inode *inode, struct file *file)
{
struct spufs_inode_info *i = SPUFS_I(inode);
+ struct spu_context *ctx = i->i_ctx;
file->private_data = i->i_ctx;
+ ctx->mss = inode->i_mapping;
+ smp_wmb();
return nonseekable_open(inode, file);
}
@@ -1042,14 +1037,14 @@ static const struct file_operations spufs_mss_fops = {
.mmap = spufs_mss_mmap,
};
-static struct page *spufs_psmap_mmap_nopage(struct vm_area_struct *vma,
- unsigned long address, int *type)
+static unsigned long spufs_psmap_mmap_nopfn(struct vm_area_struct *vma,
+ unsigned long address)
{
- return spufs_ps_nopage(vma, address, type, 0x0000, 0x20000);
+ return spufs_ps_nopfn(vma, address, 0x0000, 0x20000);
}
static struct vm_operations_struct spufs_psmap_mmap_vmops = {
- .nopage = spufs_psmap_mmap_nopage,
+ .nopfn = spufs_psmap_mmap_nopfn,
};
/*
@@ -1060,7 +1055,7 @@ static int spufs_psmap_mmap(struct file *file, struct vm_area_struct *vma)
if (!(vma->vm_flags & VM_SHARED))
return -EINVAL;
- vma->vm_flags |= VM_IO;
+ vma->vm_flags |= VM_IO | VM_PFNMAP;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE | _PAGE_GUARDED);
@@ -1071,8 +1066,11 @@ static int spufs_psmap_mmap(struct file *file, struct vm_area_struct *vma)
static int spufs_psmap_open(struct inode *inode, struct file *file)
{
struct spufs_inode_info *i = SPUFS_I(inode);
+ struct spu_context *ctx = i->i_ctx;
file->private_data = i->i_ctx;
+ ctx->psmap = inode->i_mapping;
+ smp_wmb();
return nonseekable_open(inode, file);
}
@@ -1083,14 +1081,14 @@ static const struct file_operations spufs_psmap_fops = {
#if SPUFS_MMAP_4K
-static struct page *spufs_mfc_mmap_nopage(struct vm_area_struct *vma,
- unsigned long address, int *type)
+static unsigned long spufs_mfc_mmap_nopfn(struct vm_area_struct *vma,
+ unsigned long address)
{
- return spufs_ps_nopage(vma, address, type, 0x3000, 0x1000);
+ return spufs_ps_nopfn(vma, address, 0x3000, 0x1000);
}
static struct vm_operations_struct spufs_mfc_mmap_vmops = {
- .nopage = spufs_mfc_mmap_nopage,
+ .nopfn = spufs_mfc_mmap_nopfn,
};
/*
@@ -1101,7 +1099,7 @@ static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma)
if (!(vma->vm_flags & VM_SHARED))
return -EINVAL;
- vma->vm_flags |= VM_IO;
+ vma->vm_flags |= VM_IO | VM_PFNMAP;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE | _PAGE_GUARDED);
@@ -1125,6 +1123,8 @@ static int spufs_mfc_open(struct inode *inode, struct file *file)
return -EBUSY;
file->private_data = ctx;
+ ctx->mfc = inode->i_mapping;
+ smp_wmb();
return nonseekable_open(inode, file);
}
@@ -1309,7 +1309,7 @@ static ssize_t spufs_mfc_write(struct file *file, const char __user *buffer,
if (ret)
goto out;
- spu_acquire_runnable(ctx);
+ spu_acquire_runnable(ctx, 0);
if (file->f_flags & O_NONBLOCK) {
ret = ctx->ops->send_mfc_command(ctx, &cmd);
} else {
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index 1acc2ffef8c..353a8fa07ab 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -133,7 +133,7 @@ out_drop_priv:
spu_mfc_sr1_set(ctx->spu, sr1);
out_unlock:
- spu_release_exclusive(ctx);
+ spu_release(ctx);
out:
return ret;
}
@@ -143,7 +143,7 @@ static inline int spu_run_init(struct spu_context *ctx, u32 * npc)
int ret;
unsigned long runcntl = SPU_RUNCNTL_RUNNABLE;
- ret = spu_acquire_runnable(ctx);
+ ret = spu_acquire_runnable(ctx, SPU_ACTIVATE_NOWAKE);
if (ret)
return ret;
@@ -155,7 +155,7 @@ static inline int spu_run_init(struct spu_context *ctx, u32 * npc)
spu_release(ctx);
ret = spu_setup_isolated(ctx);
if (!ret)
- ret = spu_acquire_runnable(ctx);
+ ret = spu_acquire_runnable(ctx, SPU_ACTIVATE_NOWAKE);
}
/* if userspace has set the runcntrl register (eg, to issue an
@@ -164,8 +164,10 @@ static inline int spu_run_init(struct spu_context *ctx, u32 * npc)
(SPU_RUNCNTL_RUNNABLE | SPU_RUNCNTL_ISOLATE);
if (runcntl == 0)
runcntl = SPU_RUNCNTL_RUNNABLE;
- } else
+ } else {
+ spu_start_tick(ctx);
ctx->ops->npc_write(ctx, *npc);
+ }
ctx->ops->runcntl_write(ctx, runcntl);
return ret;
@@ -176,6 +178,7 @@ static inline int spu_run_fini(struct spu_context *ctx, u32 * npc,
{
int ret = 0;
+ spu_stop_tick(ctx);
*status = ctx->ops->status_read(ctx);
*npc = ctx->ops->npc_read(ctx);
spu_release(ctx);
@@ -329,8 +332,10 @@ long spufs_run_spu(struct file *file, struct spu_context *ctx,
}
if (unlikely(ctx->state != SPU_STATE_RUNNABLE)) {
ret = spu_reacquire_runnable(ctx, npc, &status);
- if (ret)
+ if (ret) {
+ spu_stop_tick(ctx);
goto out2;
+ }
continue;
}
ret = spu_process_events(ctx);
@@ -361,4 +366,3 @@ out:
up(&ctx->run_sema);
return ret;
}
-
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index bd6fe4b7a84..2f25e68b4ba 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -44,17 +44,18 @@
#include <asm/spu_priv1.h>
#include "spufs.h"
-#define SPU_MIN_TIMESLICE (100 * HZ / 1000)
+#define SPU_TIMESLICE (HZ)
-#define SPU_BITMAP_SIZE (((MAX_PRIO+BITS_PER_LONG)/BITS_PER_LONG)+1)
struct spu_prio_array {
- unsigned long bitmap[SPU_BITMAP_SIZE];
- wait_queue_head_t waitq[MAX_PRIO];
+ DECLARE_BITMAP(bitmap, MAX_PRIO);
+ struct list_head runq[MAX_PRIO];
+ spinlock_t runq_lock;
struct list_head active_list[MAX_NUMNODES];
struct mutex active_mutex[MAX_NUMNODES];
};
static struct spu_prio_array *spu_prio;
+static struct workqueue_struct *spu_sched_wq;
static inline int node_allowed(int node)
{
@@ -68,6 +69,64 @@ static inline int node_allowed(int node)
return 1;
}
+void spu_start_tick(struct spu_context *ctx)
+{
+ if (ctx->policy == SCHED_RR)
+ queue_delayed_work(spu_sched_wq, &ctx->sched_work, SPU_TIMESLICE);
+}
+
+void spu_stop_tick(struct spu_context *ctx)
+{
+ if (ctx->policy == SCHED_RR)
+ cancel_delayed_work(&ctx->sched_work);
+}
+
+void spu_sched_tick(struct work_struct *work)
+{
+ struct spu_context *ctx =
+ container_of(work, struct spu_context, sched_work.work);
+ struct spu *spu;
+ int rearm = 1;
+
+ mutex_lock(&ctx->state_mutex);
+ spu = ctx->spu;
+ if (spu) {
+ int best = sched_find_first_bit(spu_prio->bitmap);
+ if (best <= ctx->prio) {
+ spu_deactivate(ctx);
+ rearm = 0;
+ }
+ }
+ mutex_unlock(&ctx->state_mutex);
+
+ if (rearm)
+ spu_start_tick(ctx);
+}
+
+/**
+ * spu_add_to_active_list - add spu to active list
+ * @spu: spu to add to the active list
+ */
+static void spu_add_to_active_list(struct spu *spu)
+{
+ mutex_lock(&spu_prio->active_mutex[spu->node]);
+ list_add_tail(&spu->list, &spu_prio->active_list[spu->node]);
+ mutex_unlock(&spu_prio->active_mutex[spu->node]);
+}
+
+/**
+ * spu_remove_from_active_list - remove spu from active list
+ * @spu: spu to remove from the active list
+ */
+static void spu_remove_from_active_list(struct spu *spu)
+{
+ int node = spu->node;
+
+ mutex_lock(&spu_prio->active_mutex[node]);
+ list_del_init(&spu->list);
+ mutex_unlock(&spu_prio->active_mutex[node]);
+}
+
static inline void mm_needs_global_tlbie(struct mm_struct *mm)
{
int nr = (NR_CPUS > 1) ? NR_CPUS : NR_CPUS + 1;
@@ -94,8 +153,12 @@ int spu_switch_event_unregister(struct notifier_block * n)
return blocking_notifier_chain_unregister(&spu_switch_notifier, n);
}
-
-static inline void bind_context(struct spu *spu, struct spu_context *ctx)
+/**
+ * spu_bind_context - bind spu context to physical spu
+ * @spu: physical spu to bind to
+ * @ctx: context to bind
+ */
+static void spu_bind_context(struct spu *spu, struct spu_context *ctx)
{
pr_debug("%s: pid=%d SPU=%d NODE=%d\n", __FUNCTION__, current->pid,
spu->number, spu->node);
@@ -104,7 +167,6 @@ static inline void bind_context(struct spu *spu, struct spu_context *ctx)
ctx->spu = spu;
ctx->ops = &spu_hw_ops;
spu->pid = current->pid;
- spu->prio = current->prio;
spu->mm = ctx->owner;
mm_needs_global_tlbie(spu->mm);
spu->ibox_callback = spufs_ibox_callback;
@@ -118,12 +180,21 @@ static inline void bind_context(struct spu *spu, struct spu_context *ctx)
spu->timestamp = jiffies;
spu_cpu_affinity_set(spu, raw_smp_processor_id());
spu_switch_notify(spu, ctx);
+ spu_add_to_active_list(spu);
+ ctx->state = SPU_STATE_RUNNABLE;
}
-static inline void unbind_context(struct spu *spu, struct spu_context *ctx)
+/**
+ * spu_unbind_context - unbind spu context from physical spu
+ * @spu: physical spu to unbind from
+ * @ctx: context to unbind
+ */
+static void spu_unbind_context(struct spu *spu, struct spu_context *ctx)
{
pr_debug("%s: unbind pid=%d SPU=%d NODE=%d\n", __FUNCTION__,
spu->pid, spu->number, spu->node);
+
+ spu_remove_from_active_list(spu);
spu_switch_notify(spu, NULL);
spu_unmap_mappings(ctx);
spu_save(&ctx->csa, spu);
@@ -136,95 +207,98 @@ static inline void unbind_context(struct spu *spu, struct spu_context *ctx)
spu->dma_callback = NULL;
spu->mm = NULL;
spu->pid = 0;
- spu->prio = MAX_PRIO;
ctx->ops = &spu_backing_ops;
ctx->spu = NULL;
spu->flags = 0;
spu->ctx = NULL;
}
-static inline void spu_add_wq(wait_queue_head_t * wq, wait_queue_t * wait,
- int prio)
+/**
+ * spu_add_to_rq - add a context to the runqueue
+ * @ctx: context to add
+ */
+static void spu_add_to_rq(struct spu_context *ctx)
{
- prepare_to_wait_exclusive(wq, wait, TASK_INTERRUPTIBLE);
- set_bit(prio, spu_prio->bitmap);
+ spin_lock(&spu_prio->runq_lock);
+ list_add_tail(&ctx->rq, &spu_prio->runq[ctx->prio]);
+ set_bit(ctx->prio, spu_prio->bitmap);
+ spin_unlock(&spu_prio->runq_lock);
}
-static inline void spu_del_wq(wait_queue_head_t * wq, wait_queue_t * wait,
- int prio)
+/**
+ * spu_del_from_rq - remove a context from the runqueue
+ * @ctx: context to remove
+ */
+static void spu_del_from_rq(struct spu_context *ctx)
{
- u64 flags;
-
- __set_current_state(TASK_RUNNING);
-
- spin_lock_irqsave(&wq->lock, flags);
+ spin_lock(&spu_prio->runq_lock);
+ list_del_init(&ctx->rq);
+ if (list_empty(&spu_prio->runq[ctx->prio]))
+ clear_bit(ctx->prio, spu_prio->bitmap);
+ spin_unlock(&spu_prio->runq_lock);
+}
- remove_wait_queue_locked(wq, wait);
- if (list_empty(&wq->task_list))
- clear_bit(prio, spu_prio->bitmap);
+/**
+ * spu_grab_context - remove one context from the runqueue
+ * @prio: priority of the context to be removed
+ *
+ * This function removes one context from the runqueue for priority @prio.
+ * If there is more than one context with the given priority the first
+ * task on the runqueue will be taken.
+ *
+ * Returns the spu_context it just removed.
+ *
+ * Must be called with spu_prio->runq_lock held.
+ */
+static struct spu_context *spu_grab_context(int prio)
+{
+ struct list_head *rq = &spu_prio->runq[prio];
- spin_unlock_irqrestore(&wq->lock, flags);
+ if (list_empty(rq))
+ return NULL;
+ return list_entry(rq->next, struct spu_context, rq);
}
-static void spu_prio_wait(struct spu_context *ctx, u64 flags)
+static void spu_prio_wait(struct spu_context *ctx)
{
- int prio = current->prio;
- wait_queue_head_t *wq = &spu_prio->waitq[prio];
DEFINE_WAIT(wait);
- if (ctx->spu)
- return;
-
- spu_add_wq(wq, &wait, prio);
-
+ set_bit(SPU_SCHED_WAKE, &ctx->sched_flags);
+ prepare_to_wait_exclusive(&ctx->stop_wq, &wait, TASK_INTERRUPTIBLE);
if (!signal_pending(current)) {
- up_write(&ctx->state_sema);
- pr_debug("%s: pid=%d prio=%d\n", __FUNCTION__,
- current->pid, current->prio);
+ mutex_unlock(&ctx->state_mutex);
schedule();
- down_write(&ctx->state_sema);
+ mutex_lock(&ctx->state_mutex);
}
-
- spu_del_wq(wq, &wait, prio);
+ __set_current_state(TASK_RUNNING);
+ remove_wait_queue(&ctx->stop_wq, &wait);
+ clear_bit(SPU_SCHED_WAKE, &ctx->sched_flags);
}
-static void spu_prio_wakeup(void)
+/**
+ * spu_reschedule - try to find a runnable context for a spu
+ * @spu: spu available
+ *
+ * This function is called whenever a spu becomes idle. It looks for the
+ * most suitable runnable spu context and schedules it for execution.
+ */
+static void spu_reschedule(struct spu *spu)
{
- int best = sched_find_first_bit(spu_prio->bitmap);
- if (best < MAX_PRIO) {
- wait_queue_head_t *wq = &spu_prio->waitq[best];
- wake_up_interruptible_nr(wq, 1);
- }
-}
+ int best;
-static int get_active_spu(struct spu *spu)
-{
- int node = spu->node;
- struct spu *tmp;
- int rc = 0;
+ spu_free(spu);
- mutex_lock(&spu_prio->active_mutex[node]);
- list_for_each_entry(tmp, &spu_prio->active_list[node], list) {
- if (tmp == spu) {
- list_del_init(&spu->list);
- rc = 1;
- break;
- }
+ spin_lock(&spu_prio->runq_lock);
+ best = sched_find_first_bit(spu_prio->bitmap);
+ if (best < MAX_PRIO) {
+ struct spu_context *ctx = spu_grab_context(best);
+ if (ctx && test_bit(SPU_SCHED_WAKE, &ctx->sched_flags))
+ wake_up(&ctx->stop_wq);
}
- mutex_unlock(&spu_prio->active_mutex[node]);
- return rc;
-}
-
-static void put_active_spu(struct spu *spu)
-{
- int node = spu->node;
-
- mutex_lock(&spu_prio->active_mutex[node]);
- list_add_tail(&spu->list, &spu_prio->active_list[node]);
- mutex_unlock(&spu_prio->active_mutex[node]);
+ spin_unlock(&spu_prio->runq_lock);
}
-static struct spu *spu_get_idle(struct spu_context *ctx, u64 flags)
+static struct spu *spu_get_idle(struct spu_context *ctx)
{
struct spu *spu = NULL;
int node = cpu_to_node(raw_smp_processor_id());
@@ -241,87 +315,154 @@ static struct spu *spu_get_idle(struct spu_context *ctx, u64 flags)
return spu;
}
-static inline struct spu *spu_get(struct spu_context *ctx, u64 flags)
+/**
+ * find_victim - find a lower priority context to preempt
+ * @ctx: canidate context for running
+ *
+ * Returns the freed physical spu to run the new context on.
+ */
+static struct spu *find_victim(struct spu_context *ctx)
{
- /* Future: spu_get_idle() if possible,
- * otherwise try to preempt an active
- * context.
+ struct spu_context *victim = NULL;
+ struct spu *spu;
+ int node, n;
+
+ /*
+ * Look for a possible preemption candidate on the local node first.
+ * If there is no candidate look at the other nodes. This isn't
+ * exactly fair, but so far the whole spu schedule tries to keep
+ * a strong node affinity. We might want to fine-tune this in
+ * the future.
*/
- return spu_get_idle(ctx, flags);
+ restart:
+ node = cpu_to_node(raw_smp_processor_id());
+ for (n = 0; n < MAX_NUMNODES; n++, node++) {
+ node = (node < MAX_NUMNODES) ? node : 0;
+ if (!node_allowed(node))
+ continue;
+
+ mutex_lock(&spu_prio->active_mutex[node]);
+ list_for_each_entry(spu, &spu_prio->active_list[node], list) {
+ struct spu_context *tmp = spu->ctx;
+
+ if (tmp->rt_priority < ctx->rt_priority &&
+ (!victim || tmp->rt_priority < victim->rt_priority))
+ victim = spu->ctx;
+ }
+ mutex_unlock(&spu_prio->active_mutex[node]);
+
+ if (victim) {
+ /*
+ * This nests ctx->state_mutex, but we always lock
+ * higher priority contexts before lower priority
+ * ones, so this is safe until we introduce
+ * priority inheritance schemes.
+ */
+ if (!mutex_trylock(&victim->state_mutex)) {
+ victim = NULL;
+ goto restart;
+ }
+
+ spu = victim->spu;
+ if (!spu) {
+ /*
+ * This race can happen because we've dropped
+ * the active list mutex. No a problem, just
+ * restart the search.
+ */
+ mutex_unlock(&victim->state_mutex);
+ victim = NULL;
+ goto restart;
+ }
+ spu_unbind_context(spu, victim);
+ mutex_unlock(&victim->state_mutex);
+ return spu;
+ }
+ }
+
+ return NULL;
}
-/* The three externally callable interfaces
- * for the scheduler begin here.
+/**
+ * spu_activate - find a free spu for a context and execute it
+ * @ctx: spu context to schedule
+ * @flags: flags (currently ignored)
*
- * spu_activate - bind a context to SPU, waiting as needed.
- * spu_deactivate - unbind a context from its SPU.
- * spu_yield - yield an SPU if others are waiting.
+ * Tries to find a free spu to run @ctx. If no free spu is availble
+ * add the context to the runqueue so it gets woken up once an spu
+ * is available.
*/
-
-int spu_activate(struct spu_context *ctx, u64 flags)
+int spu_activate(struct spu_context *ctx, unsigned long flags)
{
- struct spu *spu;
- int ret = 0;
- for (;;) {
- if (ctx->spu)
+ if (ctx->spu)
+ return 0;
+
+ do {
+ struct spu *spu;
+
+ spu = spu_get_idle(ctx);
+ /*
+ * If this is a realtime thread we try to get it running by
+ * preempting a lower priority thread.
+ */
+ if (!spu && ctx->rt_priority)
+ spu = find_victim(ctx);
+ if (spu) {
+ spu_bind_context(spu, ctx);
return 0;
- spu = spu_get(ctx, flags);
- if (spu != NULL) {
- if (ctx->spu != NULL) {
- spu_free(spu);
- spu_prio_wakeup();
- break;
- }
- bind_context(spu, ctx);
- put_active_spu(spu);
- break;
}
- spu_prio_wait(ctx, flags);
- if (signal_pending(current)) {
- ret = -ERESTARTSYS;
- spu_prio_wakeup();
- break;
- }
- }
- return ret;
+
+ spu_add_to_rq(ctx);
+ if (!(flags & SPU_ACTIVATE_NOWAKE))
+ spu_prio_wait(ctx);
+ spu_del_from_rq(ctx);
+ } while (!signal_pending(current));
+
+ return -ERESTARTSYS;
}
+/**
+ * spu_deactivate - unbind a context from it's physical spu
+ * @ctx: spu context to unbind
+ *
+ * Unbind @ctx from the physical spu it is running on and schedule
+ * the highest priority context to run on the freed physical spu.
+ */
void spu_deactivate(struct spu_context *ctx)
{
- struct spu *spu;
- int needs_idle;
+ struct spu *spu = ctx->spu;
- spu = ctx->spu;
- if (!spu)
- return;
- needs_idle = get_active_spu(spu);
- unbind_context(spu, ctx);
- if (needs_idle) {
- spu_free(spu);
- spu_prio_wakeup();
+ if (spu) {
+ spu_unbind_context(spu, ctx);
+ spu_reschedule(spu);
}
}
+/**
+ * spu_yield - yield a physical spu if others are waiting
+ * @ctx: spu context to yield
+ *
+ * Check if there is a higher priority context waiting and if yes
+ * unbind @ctx from the physical spu and schedule the highest
+ * priority context to run on the freed physical spu instead.
+ */
void spu_yield(struct spu_context *ctx)
{
struct spu *spu;
int need_yield = 0;
- if (down_write_trylock(&ctx->state_sema)) {
+ if (mutex_trylock(&ctx->state_mutex)) {
if ((spu = ctx->spu) != NULL) {
int best = sched_find_first_bit(spu_prio->bitmap);
if (best < MAX_PRIO) {
pr_debug("%s: yielding SPU %d NODE %d\n",
__FUNCTION__, spu->number, spu->node);
spu_deactivate(ctx);
- ctx->state = SPU_STATE_SAVED;
need_yield = 1;
- } else {
- spu->prio = MAX_PRIO;
}
}
- up_write(&ctx->state_sema);
+ mutex_unlock(&ctx->state_mutex);
}
if (unlikely(need_yield))
yield();
@@ -331,14 +472,19 @@ int __init spu_sched_init(void)
{
int i;
+ spu_sched_wq = create_singlethread_workqueue("spusched");
+ if (!spu_sched_wq)
+ return 1;
+
spu_prio = kzalloc(sizeof(struct spu_prio_array), GFP_KERNEL);
if (!spu_prio) {
printk(KERN_WARNING "%s: Unable to allocate priority queue.\n",
__FUNCTION__);
+ destroy_workqueue(spu_sched_wq);
return 1;
}
for (i = 0; i < MAX_PRIO; i++) {
- init_waitqueue_head(&spu_prio->waitq[i]);
+ INIT_LIST_HEAD(&spu_prio->runq[i]);
__clear_bit(i, spu_prio->bitmap);
}
__set_bit(MAX_PRIO, spu_prio->bitmap);
@@ -346,6 +492,7 @@ int __init spu_sched_init(void)
mutex_init(&spu_prio->active_mutex[i]);
INIT_LIST_HEAD(&spu_prio->active_list[i]);
}
+ spin_lock_init(&spu_prio->runq_lock);
return 0;
}
@@ -364,4 +511,5 @@ void __exit spu_sched_exit(void)
mutex_unlock(&spu_prio->active_mutex[node]);
}
kfree(spu_prio);
+ destroy_workqueue(spu_sched_wq);
}
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h
index 56864469215..0c437891dfd 100644
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -23,7 +23,7 @@
#define SPUFS_H
#include <linux/kref.h>
-#include <linux/rwsem.h>
+#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <linux/fs.h>
@@ -37,11 +37,13 @@ enum {
};
struct spu_context_ops;
-
-#define SPU_CONTEXT_PREEMPT 0UL
-
struct spu_gang;
+/* ctx->sched_flags */
+enum {
+ SPU_SCHED_WAKE = 0,
+};
+
struct spu_context {
struct spu *spu; /* pointer to a physical SPU */
struct spu_state csa; /* SPU context save area. */
@@ -51,10 +53,12 @@ struct spu_context {
struct address_space *cntl; /* 'control' area mappings. */
struct address_space *signal1; /* 'signal1' area mappings. */
struct address_space *signal2; /* 'signal2' area mappings. */
+ struct address_space *mss; /* 'mss' area mappings. */
+ struct address_space *psmap; /* 'psmap' area mappings. */
u64 object_id; /* user space pointer for oprofile */
enum { SPU_STATE_RUNNABLE, SPU_STATE_SAVED } state;
- struct rw_semaphore state_sema;
+ struct mutex state_mutex;
struct semaphore run_sema;
struct mm_struct *owner;
@@ -75,6 +79,14 @@ struct spu_context {
struct list_head gang_list;
struct spu_gang *gang;
+
+ /* scheduler fields */
+ struct list_head rq;
+ struct delayed_work sched_work;
+ unsigned long sched_flags;
+ unsigned long rt_priority;
+ int policy;
+ int prio;
};
struct spu_gang {
@@ -159,6 +171,16 @@ void spu_gang_remove_ctx(struct spu_gang *gang, struct spu_context *ctx);
void spu_gang_add_ctx(struct spu_gang *gang, struct spu_context *ctx);
/* context management */
+static inline void spu_acquire(struct spu_context *ctx)
+{
+ mutex_lock(&ctx->state_mutex);
+}
+
+static inline void spu_release(struct spu_context *ctx)
+{
+ mutex_unlock(&ctx->state_mutex);
+}
+
struct spu_context * alloc_spu_context(struct spu_gang *gang);
void destroy_spu_context(struct kref *kref);
struct spu_context * get_spu_context(struct spu_context *ctx);
@@ -166,20 +188,18 @@ int put_spu_context(struct spu_context *ctx);
void spu_unmap_mappings(struct spu_context *ctx);
void spu_forget(struct spu_context *ctx);
-void spu_acquire(struct spu_context *ctx);
-void spu_release(struct spu_context *ctx);
-int spu_acquire_runnable(struct spu_context *ctx);
+int spu_acquire_runnable(struct spu_context *ctx, unsigned long flags);
void spu_acquire_saved(struct spu_context *ctx);
int spu_acquire_exclusive(struct spu_context *ctx);
-
-static inline void spu_release_exclusive(struct spu_context *ctx)
-{
- up_write(&ctx->state_sema);
-}
-
-int spu_activate(struct spu_context *ctx, u64 flags);
+enum {
+ SPU_ACTIVATE_NOWAKE = 1,
+};
+int spu_activate(struct spu_context *ctx, unsigned long flags);
void spu_deactivate(struct spu_context *ctx);
void spu_yield(struct spu_context *ctx);
+void spu_start_tick(struct spu_context *ctx);
+void spu_stop_tick(struct spu_context *ctx);
+void spu_sched_tick(struct work_struct *work);
int __init spu_sched_init(void);
void __exit spu_sched_exit(void);
diff --git a/arch/powerpc/platforms/celleb/htab.c b/arch/powerpc/platforms/celleb/htab.c
index ffa7c2c2030..279d7339e17 100644
--- a/arch/powerpc/platforms/celleb/htab.c
+++ b/arch/powerpc/platforms/celleb/htab.c
@@ -95,7 +95,6 @@ static long beat_lpar_hpte_insert(unsigned long hpte_group,
unsigned long lpar_rc;
unsigned long slot;
unsigned long hpte_v, hpte_r;
- unsigned long flags;
/* same as iseries */
if (vflags & HPTE_V_SECONDARY)
@@ -115,17 +114,17 @@ static long beat_lpar_hpte_insert(unsigned long hpte_group,
if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE))
hpte_r &= ~_PAGE_COHERENT;
- spin_lock_irqsave(&beat_htab_lock, flags);
+ spin_lock(&beat_htab_lock);
if ((lpar_rc = beat_read_mask(hpte_group)) == 0) {
if (!(vflags & HPTE_V_BOLTED))
DBG_LOW(" full\n");
- spin_unlock_irqrestore(&beat_htab_lock, flags);
+ spin_unlock(&beat_htab_lock);
return -1;
}
lpar_rc = beat_insert_htab_entry(0, hpte_group, lpar_rc << 48,
hpte_v, hpte_r, &slot);
- spin_unlock_irqrestore(&beat_htab_lock, flags);
+ spin_unlock(&beat_htab_lock);
/*
* Since we try and ioremap PHBs we don't own, the pte insert
@@ -189,7 +188,6 @@ static long beat_lpar_hpte_updatepp(unsigned long slot,
{
unsigned long lpar_rc;
unsigned long dummy0, dummy1, want_v;
- unsigned long flags;
want_v = hpte_encode_v(va, psize);
@@ -197,17 +195,17 @@ static long beat_lpar_hpte_updatepp(unsigned long slot,
"avpnv=%016lx, slot=%016lx, psize: %d, newpp %016lx ... ",
want_v & HPTE_V_AVPN, slot, psize, newpp);
- spin_lock_irqsave(&beat_htab_lock, flags);
+ spin_lock(&beat_htab_lock);
dummy0 = beat_lpar_hpte_getword0(slot);
if ((dummy0 & ~0x7FUL) != (want_v & ~0x7FUL)) {
DBG_LOW("not found !\n");
- spin_unlock_irqrestore(&beat_htab_lock, flags);
+ spin_unlock(&beat_htab_lock);
return -1;
}
lpar_rc = beat_write_htab_entry(0, slot, 0, newpp, 0, 7, &dummy0,
&dummy1);
- spin_unlock_irqrestore(&beat_htab_lock, flags);
+ spin_unlock(&beat_htab_lock);
if (lpar_rc != 0 || dummy0 == 0) {
DBG_LOW("not found !\n");
return -1;
@@ -256,18 +254,17 @@ static void beat_lpar_hpte_updateboltedpp(unsigned long newpp,
int psize)
{
unsigned long lpar_rc, slot, vsid, va, dummy0, dummy1;
- unsigned long flags;
vsid = get_kernel_vsid(ea);
va = (vsid << 28) | (ea & 0x0fffffff);
- spin_lock_irqsave(&beat_htab_lock, flags);
+ spin_lock(&beat_htab_lock);
slot = beat_lpar_hpte_find(va, psize);
BUG_ON(slot == -1);
lpar_rc = beat_write_htab_entry(0, slot, 0, newpp, 0, 7,
&dummy0, &dummy1);
- spin_unlock_irqrestore(&beat_htab_lock, flags);
+ spin_unlock(&beat_htab_lock);
BUG_ON(lpar_rc != 0);
}
diff --git a/arch/powerpc/platforms/embedded6xx/linkstation.c b/arch/powerpc/platforms/embedded6xx/linkstation.c
index 61599d919ea..3f6c4114f90 100644
--- a/arch/powerpc/platforms/embedded6xx/linkstation.c
+++ b/arch/powerpc/platforms/embedded6xx/linkstation.c
@@ -13,7 +13,6 @@
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/initrd.h>
-#include <linux/root_dev.h>
#include <linux/mtd/physmap.h>
#include <asm/time.h>
@@ -91,17 +90,6 @@ static void __init linkstation_setup_arch(void)
ARRAY_SIZE(linkstation_physmap_partitions));
#endif
-#ifdef CONFIG_BLK_DEV_INITRD
- if (initrd_start)
- ROOT_DEV = Root_RAM0;
- else
-#endif
-#ifdef CONFIG_ROOT_NFS
- ROOT_DEV = Root_NFS;
-#else
- ROOT_DEV = Root_HDA1;
-#endif
-
/* Lookup PCI host bridges */
for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
add_bridge(np);
diff --git a/arch/powerpc/platforms/ps3/spu.c b/arch/powerpc/platforms/ps3/spu.c
index d1929721b0e..a397e4e17c1 100644
--- a/arch/powerpc/platforms/ps3/spu.c
+++ b/arch/powerpc/platforms/ps3/spu.c
@@ -170,31 +170,6 @@ static int __init construct_spu(struct spu *spu)
return result;
}
-static int __init add_spu_pages(unsigned long start_addr, unsigned long size)
-{
- int result;
- unsigned long start_pfn;
- unsigned long nr_pages;
- struct pglist_data *pgdata;
- struct zone *zone;
-
- BUG_ON(!mem_init_done);
-
- start_pfn = start_addr >> PAGE_SHIFT;
- nr_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-
- pgdata = NODE_DATA(0);
- zone = pgdata->node_zones;
-
- result = __add_pages(zone, start_pfn, nr_pages);
-
- if (result)
- pr_debug("%s:%d: __add_pages failed: (%d)\n",
- __func__, __LINE__, result);
-
- return result;
-}
-
static void spu_unmap(struct spu *spu)
{
iounmap(spu->priv2);
@@ -206,19 +181,6 @@ static void spu_unmap(struct spu *spu)
static int __init setup_areas(struct spu *spu)
{
struct table {char* name; unsigned long addr; unsigned long size;};
- int result;
-
- /* setup pages */
-
- result = add_spu_pages(spu->local_store_phys, LS_SIZE);
- if (result)
- goto fail_add;
-
- result = add_spu_pages(spu->problem_phys, sizeof(struct spu_problem));
- if (result)
- goto fail_add;
-
- /* ioremap */
spu_pdata(spu)->shadow = __ioremap(
spu_pdata(spu)->shadow_addr, sizeof(struct spe_shadow),
@@ -260,8 +222,8 @@ static int __init setup_areas(struct spu *spu)
fail_ioremap:
spu_unmap(spu);
-fail_add:
- return result;
+
+ return -ENOMEM;
}
static int __init setup_interrupts(struct spu *spu)
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index 69590fbf83d..dc0583bdbc6 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_XICS) += xics.o
obj-$(CONFIG_SCANLOG) += scanlog.o
obj-$(CONFIG_EEH) += eeh.o eeh_cache.o eeh_driver.o eeh_event.o
+obj-$(CONFIG_KEXEC) += kexec.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug-cpu.o
diff --git a/arch/powerpc/platforms/pseries/firmware.h b/arch/powerpc/platforms/pseries/firmware.h
deleted file mode 100644
index 714f56f5536..00000000000
--- a/arch/powerpc/platforms/pseries/firmware.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * Copyright 2006 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.
- */
-
-#ifndef _PSERIES_FIRMWARE_H
-#define _PSERIES_FIRMWARE_H
-
-#include <asm/firmware.h>
-
-extern void __init fw_feature_init(void);
-
-#endif /* _PSERIES_FIRMWARE_H */
diff --git a/arch/powerpc/platforms/pseries/kexec.c b/arch/powerpc/platforms/pseries/kexec.c
new file mode 100644
index 00000000000..af268560745
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/kexec.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2006 Michael Ellerman, 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.
+ */
+
+#include <asm/machdep.h>
+#include <asm/page.h>
+#include <asm/firmware.h>
+#include <asm/kexec.h>
+#include <asm/mpic.h>
+
+#include "pseries.h"
+#include "xics.h"
+#include "plpar_wrappers.h"
+
+static void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
+{
+ /* Don't risk a hypervisor call if we're crashing */
+ if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) {
+ unsigned long addr;
+
+ addr = __pa(get_slb_shadow());
+ if (unregister_slb_shadow(hard_smp_processor_id(), addr))
+ printk("SLB shadow buffer deregistration of "
+ "cpu %u (hw_cpu_id %d) failed\n",
+ smp_processor_id(),
+ hard_smp_processor_id());
+
+ addr = __pa(get_lppaca());
+ if (unregister_vpa(hard_smp_processor_id(), addr)) {
+ printk("VPA deregistration of cpu %u (hw_cpu_id %d) "
+ "failed\n", smp_processor_id(),
+ hard_smp_processor_id());
+ }
+ }
+}
+
+static void pseries_kexec_cpu_down_mpic(int crash_shutdown, int secondary)
+{
+ pseries_kexec_cpu_down(crash_shutdown, secondary);
+ mpic_teardown_this_cpu(secondary);
+}
+
+void __init setup_kexec_cpu_down_mpic(void)
+{
+ ppc_md.kexec_cpu_down = pseries_kexec_cpu_down_mpic;
+}
+
+static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
+{
+ pseries_kexec_cpu_down(crash_shutdown, secondary);
+ xics_teardown_cpu(secondary);
+}
+
+void __init setup_kexec_cpu_down_xics(void)
+{
+ ppc_md.kexec_cpu_down = pseries_kexec_cpu_down_xics;
+}
+
+static int __init pseries_kexec_setup(void)
+{
+ ppc_md.machine_kexec = default_machine_kexec;
+ ppc_md.machine_kexec_prepare = default_machine_kexec_prepare;
+ ppc_md.machine_crash_shutdown = default_machine_crash_shutdown;
+
+ return 0;
+}
+__initcall(pseries_kexec_setup);
diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c
index c69bd15ced9..fa59124ce3f 100644
--- a/arch/powerpc/platforms/pseries/pci.c
+++ b/arch/powerpc/platforms/pseries/pci.c
@@ -98,6 +98,10 @@ static void fixup_winbond_82c105(struct pci_dev* dev)
if (dev->resource[i].flags & IORESOURCE_IO
&& dev->bus->number == 0 && dev->devfn == 0x81)
dev->resource[i].flags &= ~IORESOURCE_IO;
+ if (dev->resource[i].start == 0 && dev->resource[i].end) {
+ dev->resource[i].flags = 0;
+ dev->resource[i].end = 0;
+ }
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105,
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
new file mode 100644
index 00000000000..b43f1397a5b
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2006 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.
+ */
+
+#ifndef _PSERIES_PSERIES_H
+#define _PSERIES_PSERIES_H
+
+extern void __init fw_feature_init(void);
+
+struct pt_regs;
+
+extern int pSeries_system_reset_exception(struct pt_regs *regs);
+extern int pSeries_machine_check_exception(struct pt_regs *regs);
+
+#ifdef CONFIG_SMP
+extern void smp_init_pseries_mpic(void);
+extern void smp_init_pseries_xics(void);
+#else
+static inline smp_init_pseries_mpic(void) { };
+static inline smp_init_pseries_xics(void) { };
+#endif
+
+#ifdef CONFIG_KEXEC
+extern void setup_kexec_cpu_down_xics(void);
+extern void setup_kexec_cpu_down_mpic(void);
+#else
+static inline setup_kexec_cpu_down_xics(void) { };
+static inline setup_kexec_cpu_down_mpic(void) { };
+#endif
+
+#endif /* _PSERIES_PSERIES_H */
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index b1d3d161249..edc03887311 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -51,7 +51,7 @@
#include <asm/udbg.h>
#include <asm/firmware.h>
-#include "ras.h"
+#include "pseries.h"
static unsigned char ras_log_buf[RTAS_ERROR_LOG_MAX];
static DEFINE_SPINLOCK(ras_log_buf_lock);
diff --git a/arch/powerpc/platforms/pseries/ras.h b/arch/powerpc/platforms/pseries/ras.h
deleted file mode 100644
index 0e66b0da55e..00000000000
--- a/arch/powerpc/platforms/pseries/ras.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _PSERIES_RAS_H
-#define _PSERIES_RAS_H
-
-struct pt_regs;
-
-extern int pSeries_system_reset_exception(struct pt_regs *regs);
-extern int pSeries_machine_check_exception(struct pt_regs *regs);
-
-#endif /* _PSERIES_RAS_H */
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 042ecae107a..435a0459652 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -55,7 +55,6 @@
#include <asm/dma.h>
#include <asm/machdep.h>
#include <asm/irq.h>
-#include <asm/kexec.h>
#include <asm/time.h>
#include <asm/nvram.h>
#include "xics.h"
@@ -65,10 +64,10 @@
#include <asm/i8259.h>
#include <asm/udbg.h>
#include <asm/smp.h>
+#include <asm/firmware.h>
#include "plpar_wrappers.h"
-#include "ras.h"
-#include "firmware.h"
+#include "pseries.h"
#ifdef DEBUG
#define DBG(fmt...) udbg_printf(fmt)
@@ -77,8 +76,6 @@
#endif
/* move those away to a .h */
-extern void smp_init_pseries_mpic(void);
-extern void smp_init_pseries_xics(void);
extern void find_udbg_vterm(void);
int fwnmi_active; /* TRUE if an FWNMI handler is present */
@@ -221,42 +218,6 @@ static void pseries_lpar_enable_pmcs(void)
get_lppaca()->pmcregs_in_use = 1;
}
-#ifdef CONFIG_KEXEC
-static void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
-{
- /* Don't risk a hypervisor call if we're crashing */
- if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) {
- unsigned long addr;
-
- addr = __pa(get_slb_shadow());
- if (unregister_slb_shadow(hard_smp_processor_id(), addr))
- printk("SLB shadow buffer deregistration of "
- "cpu %u (hw_cpu_id %d) failed\n",
- smp_processor_id(),
- hard_smp_processor_id());
-
- addr = __pa(get_lppaca());
- if (unregister_vpa(hard_smp_processor_id(), addr)) {
- printk("VPA deregistration of cpu %u (hw_cpu_id %d) "
- "failed\n", smp_processor_id(),
- hard_smp_processor_id());
- }
- }
-}
-
-static void pseries_kexec_cpu_down_mpic(int crash_shutdown, int secondary)
-{
- pseries_kexec_cpu_down(crash_shutdown, secondary);
- mpic_teardown_this_cpu(secondary);
-}
-
-static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
-{
- pseries_kexec_cpu_down(crash_shutdown, secondary);
- xics_teardown_cpu(secondary);
-}
-#endif /* CONFIG_KEXEC */
-
static void __init pseries_discover_pic(void)
{
struct device_node *np;
@@ -269,21 +230,13 @@ static void __init pseries_discover_pic(void)
pSeries_mpic_node = of_node_get(np);
ppc_md.init_IRQ = pseries_mpic_init_IRQ;
ppc_md.get_irq = mpic_get_irq;
-#ifdef CONFIG_KEXEC
- ppc_md.kexec_cpu_down = pseries_kexec_cpu_down_mpic;
-#endif
-#ifdef CONFIG_SMP
+ setup_kexec_cpu_down_mpic();
smp_init_pseries_mpic();
-#endif
return;
} else if (strstr(typep, "ppc-xicp")) {
ppc_md.init_IRQ = xics_init_IRQ;
-#ifdef CONFIG_KEXEC
- ppc_md.kexec_cpu_down = pseries_kexec_cpu_down_xics;
-#endif
-#ifdef CONFIG_SMP
+ setup_kexec_cpu_down_xics();
smp_init_pseries_xics();
-#endif
return;
}
}
@@ -554,9 +507,4 @@ define_machine(pseries) {
.check_legacy_ioport = pSeries_check_legacy_ioport,
.system_reset_exception = pSeries_system_reset_exception,
.machine_check_exception = pSeries_machine_check_exception,
-#ifdef CONFIG_KEXEC
- .machine_kexec = default_machine_kexec,
- .machine_kexec_prepare = default_machine_kexec_prepare,
- .machine_crash_shutdown = default_machine_crash_shutdown,
-#endif
};
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 4408518eaeb..116305b22a2 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -48,6 +48,7 @@
#include <asm/vdso_datapage.h>
#include "plpar_wrappers.h"
+#include "pseries.h"
#ifdef DEBUG
#include <asm/udbg.h>