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-rw-r--r--arch/powerpc/sysdev/Kconfig2
-rw-r--r--arch/powerpc/sysdev/fsl_pci.c5
-rw-r--r--arch/powerpc/sysdev/fsl_soc.h3
-rw-r--r--arch/powerpc/sysdev/mpic.c8
-rw-r--r--arch/powerpc/sysdev/mv64x60_dev.c2
-rw-r--r--arch/powerpc/sysdev/scom.c168
-rw-r--r--arch/powerpc/sysdev/xics/ics-opal.c17
7 files changed, 126 insertions, 79 deletions
diff --git a/arch/powerpc/sysdev/Kconfig b/arch/powerpc/sysdev/Kconfig
index ab4cb547647..13ec968be4c 100644
--- a/arch/powerpc/sysdev/Kconfig
+++ b/arch/powerpc/sysdev/Kconfig
@@ -28,7 +28,7 @@ config PPC_SCOM
config SCOM_DEBUGFS
bool "Expose SCOM controllers via debugfs"
- depends on PPC_SCOM
+ depends on PPC_SCOM && DEBUG_FS
default n
config GE_FPGA
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index ccfb50ddfe3..21039634d1d 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -40,7 +40,7 @@
static int fsl_pcie_bus_fixup, is_mpc83xx_pci;
-static void quirk_fsl_pcie_header(struct pci_dev *dev)
+static void quirk_fsl_pcie_early(struct pci_dev *dev)
{
u8 hdr_type;
@@ -562,7 +562,8 @@ no_bridge:
}
#endif /* CONFIG_FSL_SOC_BOOKE || CONFIG_PPC_86xx */
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, quirk_fsl_pcie_header);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID,
+ quirk_fsl_pcie_early);
#if defined(CONFIG_PPC_83xx) || defined(CONFIG_PPC_MPC512x)
struct mpc83xx_pcie_priv {
diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h
index c6d00736f07..4c5a19ef4f0 100644
--- a/arch/powerpc/sysdev/fsl_soc.h
+++ b/arch/powerpc/sysdev/fsl_soc.h
@@ -21,8 +21,6 @@ struct device_node;
extern void fsl_rstcr_restart(char *cmd);
-#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
-
/* The different ports that the DIU can be connected to */
enum fsl_diu_monitor_port {
FSL_DIU_PORT_DVI, /* DVI */
@@ -43,7 +41,6 @@ struct platform_diu_data_ops {
};
extern struct platform_diu_data_ops diu_ops;
-#endif
void fsl_hv_restart(char *cmd);
void fsl_hv_halt(void);
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 2d30eafc40d..0e166ed4cd1 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1088,8 +1088,14 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq,
* is done here.
*/
if (!mpic_is_ipi(mpic, hw) && (mpic->flags & MPIC_NO_RESET)) {
+ int cpu;
+
+ preempt_disable();
+ cpu = mpic_processor_id(mpic);
+ preempt_enable();
+
mpic_set_vector(virq, hw);
- mpic_set_destination(virq, mpic_processor_id(mpic));
+ mpic_set_destination(virq, cpu);
mpic_irq_set_priority(virq, 8);
}
diff --git a/arch/powerpc/sysdev/mv64x60_dev.c b/arch/powerpc/sysdev/mv64x60_dev.c
index 4a25c26f0bf..a3a8fad8537 100644
--- a/arch/powerpc/sysdev/mv64x60_dev.c
+++ b/arch/powerpc/sysdev/mv64x60_dev.c
@@ -228,7 +228,7 @@ static struct platform_device * __init mv64x60_eth_register_shared_pdev(
if (id == 0) {
pdev = platform_device_register_simple("orion-mdio", -1, &r[1], 1);
- if (!pdev)
+ if (IS_ERR(pdev))
return pdev;
}
diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c
index 9193e12df69..6f5a8d177c4 100644
--- a/arch/powerpc/sysdev/scom.c
+++ b/arch/powerpc/sysdev/scom.c
@@ -25,6 +25,7 @@
#include <asm/debug.h>
#include <asm/prom.h>
#include <asm/scom.h>
+#include <asm/uaccess.h>
const struct scom_controller *scom_controller;
EXPORT_SYMBOL_GPL(scom_controller);
@@ -53,7 +54,7 @@ scom_map_t scom_map_device(struct device_node *dev, int index)
{
struct device_node *parent;
unsigned int cells, size;
- const u32 *prop;
+ const __be32 *prop, *sprop;
u64 reg, cnt;
scom_map_t ret;
@@ -62,12 +63,24 @@ scom_map_t scom_map_device(struct device_node *dev, int index)
if (parent == NULL)
return 0;
- prop = of_get_property(parent, "#scom-cells", NULL);
- cells = prop ? *prop : 1;
-
+ /*
+ * We support "scom-reg" properties for adding scom registers
+ * to a random device-tree node with an explicit scom-parent
+ *
+ * We also support the simple "reg" property if the device is
+ * a direct child of a scom controller.
+ *
+ * In case both exist, "scom-reg" takes precedence.
+ */
prop = of_get_property(dev, "scom-reg", &size);
+ sprop = of_get_property(parent, "#scom-cells", NULL);
+ if (!prop && parent == dev->parent) {
+ prop = of_get_property(dev, "reg", &size);
+ sprop = of_get_property(parent, "#address-cells", NULL);
+ }
if (!prop)
- return 0;
+ return NULL;
+ cells = sprop ? be32_to_cpup(sprop) : 1;
size >>= 2;
if (index >= (size / (2*cells)))
@@ -86,62 +99,89 @@ EXPORT_SYMBOL_GPL(scom_map_device);
#ifdef CONFIG_SCOM_DEBUGFS
struct scom_debug_entry {
struct device_node *dn;
- unsigned long addr;
- scom_map_t map;
- spinlock_t lock;
- char name[8];
- struct debugfs_blob_wrapper blob;
+ struct debugfs_blob_wrapper path;
+ char name[16];
};
-static int scom_addr_set(void *data, u64 val)
+static ssize_t scom_debug_read(struct file *filp, char __user *ubuf,
+ size_t count, loff_t *ppos)
{
- struct scom_debug_entry *ent = data;
-
- ent->addr = 0;
- scom_unmap(ent->map);
-
- ent->map = scom_map(ent->dn, val, 1);
- if (scom_map_ok(ent->map))
- ent->addr = val;
- else
- return -EFAULT;
-
- return 0;
-}
-
-static int scom_addr_get(void *data, u64 *val)
-{
- struct scom_debug_entry *ent = data;
- *val = ent->addr;
- return 0;
+ struct scom_debug_entry *ent = filp->private_data;
+ u64 __user *ubuf64 = (u64 __user *)ubuf;
+ loff_t off = *ppos;
+ ssize_t done = 0;
+ u64 reg, reg_cnt, val;
+ scom_map_t map;
+ int rc;
+
+ if (off < 0 || (off & 7) || (count & 7))
+ return -EINVAL;
+ reg = off >> 3;
+ reg_cnt = count >> 3;
+
+ map = scom_map(ent->dn, reg, reg_cnt);
+ if (!scom_map_ok(map))
+ return -ENXIO;
+
+ for (reg = 0; reg < reg_cnt; reg++) {
+ rc = scom_read(map, reg, &val);
+ if (!rc)
+ rc = put_user(val, ubuf64);
+ if (rc) {
+ if (!done)
+ done = rc;
+ break;
+ }
+ ubuf64++;
+ *ppos += 8;
+ done += 8;
+ }
+ scom_unmap(map);
+ return done;
}
-DEFINE_SIMPLE_ATTRIBUTE(scom_addr_fops, scom_addr_get, scom_addr_set,
- "0x%llx\n");
-static int scom_val_set(void *data, u64 val)
+static ssize_t scom_debug_write(struct file* filp, const char __user *ubuf,
+ size_t count, loff_t *ppos)
{
- struct scom_debug_entry *ent = data;
-
- if (!scom_map_ok(ent->map))
- return -EFAULT;
-
- scom_write(ent->map, 0, val);
-
- return 0;
+ struct scom_debug_entry *ent = filp->private_data;
+ u64 __user *ubuf64 = (u64 __user *)ubuf;
+ loff_t off = *ppos;
+ ssize_t done = 0;
+ u64 reg, reg_cnt, val;
+ scom_map_t map;
+ int rc;
+
+ if (off < 0 || (off & 7) || (count & 7))
+ return -EINVAL;
+ reg = off >> 3;
+ reg_cnt = count >> 3;
+
+ map = scom_map(ent->dn, reg, reg_cnt);
+ if (!scom_map_ok(map))
+ return -ENXIO;
+
+ for (reg = 0; reg < reg_cnt; reg++) {
+ rc = get_user(val, ubuf64);
+ if (!rc)
+ rc = scom_write(map, reg, val);
+ if (rc) {
+ if (!done)
+ done = rc;
+ break;
+ }
+ ubuf64++;
+ done += 8;
+ }
+ scom_unmap(map);
+ return done;
}
-static int scom_val_get(void *data, u64 *val)
-{
- struct scom_debug_entry *ent = data;
-
- if (!scom_map_ok(ent->map))
- return -EFAULT;
-
- *val = scom_read(ent->map, 0);
- return 0;
-}
-DEFINE_SIMPLE_ATTRIBUTE(scom_val_fops, scom_val_get, scom_val_set,
- "0x%llx\n");
+static const struct file_operations scom_debug_fops = {
+ .read = scom_debug_read,
+ .write = scom_debug_write,
+ .open = simple_open,
+ .llseek = default_llseek,
+};
static int scom_debug_init_one(struct dentry *root, struct device_node *dn,
int i)
@@ -154,11 +194,9 @@ static int scom_debug_init_one(struct dentry *root, struct device_node *dn,
return -ENOMEM;
ent->dn = of_node_get(dn);
- ent->map = SCOM_MAP_INVALID;
- spin_lock_init(&ent->lock);
- snprintf(ent->name, 8, "scom%d", i);
- ent->blob.data = (void*) dn->full_name;
- ent->blob.size = strlen(dn->full_name);
+ snprintf(ent->name, 16, "%08x", i);
+ ent->path.data = (void*) dn->full_name;
+ ent->path.size = strlen(dn->full_name);
dir = debugfs_create_dir(ent->name, root);
if (!dir) {
@@ -167,9 +205,8 @@ static int scom_debug_init_one(struct dentry *root, struct device_node *dn,
return -1;
}
- debugfs_create_file("addr", 0600, dir, ent, &scom_addr_fops);
- debugfs_create_file("value", 0600, dir, ent, &scom_val_fops);
- debugfs_create_blob("path", 0400, dir, &ent->blob);
+ debugfs_create_blob("devspec", 0400, dir, &ent->path);
+ debugfs_create_file("access", 0600, dir, ent, &scom_debug_fops);
return 0;
}
@@ -185,8 +222,13 @@ static int scom_debug_init(void)
return -1;
i = rc = 0;
- for_each_node_with_property(dn, "scom-controller")
- rc |= scom_debug_init_one(root, dn, i++);
+ for_each_node_with_property(dn, "scom-controller") {
+ int id = of_get_ibm_chip_id(dn);
+ if (id == -1)
+ id = i;
+ rc |= scom_debug_init_one(root, dn, id);
+ i++;
+ }
return rc;
}
diff --git a/arch/powerpc/sysdev/xics/ics-opal.c b/arch/powerpc/sysdev/xics/ics-opal.c
index 39d72212655..3c6ee1b64e5 100644
--- a/arch/powerpc/sysdev/xics/ics-opal.c
+++ b/arch/powerpc/sysdev/xics/ics-opal.c
@@ -112,6 +112,7 @@ static int ics_opal_set_affinity(struct irq_data *d,
bool force)
{
unsigned int hw_irq = (unsigned int)irqd_to_hwirq(d);
+ __be16 oserver;
int16_t server;
int8_t priority;
int64_t rc;
@@ -120,13 +121,13 @@ static int ics_opal_set_affinity(struct irq_data *d,
if (hw_irq == XICS_IPI || hw_irq == XICS_IRQ_SPURIOUS)
return -1;
- rc = opal_get_xive(hw_irq, &server, &priority);
+ rc = opal_get_xive(hw_irq, &oserver, &priority);
if (rc != OPAL_SUCCESS) {
- pr_err("%s: opal_set_xive(irq=%d [hw 0x%x] server=%x)"
- " error %lld\n",
- __func__, d->irq, hw_irq, server, rc);
+ pr_err("%s: opal_get_xive(irq=%d [hw 0x%x]) error %lld\n",
+ __func__, d->irq, hw_irq, rc);
return -1;
}
+ server = be16_to_cpu(oserver);
wanted_server = xics_get_irq_server(d->irq, cpumask, 1);
if (wanted_server < 0) {
@@ -181,7 +182,7 @@ static int ics_opal_map(struct ics *ics, unsigned int virq)
{
unsigned int hw_irq = (unsigned int)virq_to_hw(virq);
int64_t rc;
- int16_t server;
+ __be16 server;
int8_t priority;
if (WARN_ON(hw_irq == XICS_IPI || hw_irq == XICS_IRQ_SPURIOUS))
@@ -201,7 +202,7 @@ static int ics_opal_map(struct ics *ics, unsigned int virq)
static void ics_opal_mask_unknown(struct ics *ics, unsigned long vec)
{
int64_t rc;
- int16_t server;
+ __be16 server;
int8_t priority;
/* Check if HAL knows about this interrupt */
@@ -215,14 +216,14 @@ static void ics_opal_mask_unknown(struct ics *ics, unsigned long vec)
static long ics_opal_get_server(struct ics *ics, unsigned long vec)
{
int64_t rc;
- int16_t server;
+ __be16 server;
int8_t priority;
/* Check if HAL knows about this interrupt */
rc = opal_get_xive(vec, &server, &priority);
if (rc != OPAL_SUCCESS)
return -1;
- return ics_opal_unmangle_server(server);
+ return ics_opal_unmangle_server(be16_to_cpu(server));
}
int __init ics_opal_init(void)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-11 13:21:57 +0000