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-rw-r--r--drivers/acpi/acpica/tbxface.c17
-rw-r--r--drivers/acpi/osl.c11
-rw-r--r--drivers/acpi/tables.c20
-rw-r--r--drivers/clocksource/acpi_pm.c2
-rw-r--r--drivers/clocksource/cyclone.c2
-rw-r--r--drivers/eisa/Kconfig6
-rw-r--r--drivers/firmware/iscsi_ibft.c4
-rw-r--r--drivers/gpu/drm/drm_proc.c4
-rw-r--r--drivers/input/keyboard/Kconfig4
-rw-r--r--drivers/input/mouse/Kconfig2
-rw-r--r--drivers/misc/sgi-gru/gru.h2
-rw-r--r--drivers/misc/sgi-gru/grufile.c18
-rw-r--r--drivers/misc/sgi-xp/xp.h22
-rw-r--r--drivers/mtd/nand/Kconfig2
-rw-r--r--drivers/net/ne3210.c3
-rw-r--r--drivers/net/sfc/falcon.c24
-rw-r--r--drivers/net/wireless/arlan-main.c4
-rw-r--r--drivers/pci/dmar.c7
-rw-r--r--drivers/watchdog/rdc321x_wdt.c2
-rw-r--r--drivers/xen/events.c227
20 files changed, 239 insertions, 144 deletions
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index c3e841f3cde9..ab0aff3c7d6a 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -365,7 +365,7 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
/*******************************************************************************
*
- * FUNCTION: acpi_get_table
+ * FUNCTION: acpi_get_table_with_size
*
* PARAMETERS: Signature - ACPI signature of needed table
* Instance - Which instance (for SSDTs)
@@ -377,8 +377,9 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
*
*****************************************************************************/
acpi_status
-acpi_get_table(char *signature,
- u32 instance, struct acpi_table_header **out_table)
+acpi_get_table_with_size(char *signature,
+ u32 instance, struct acpi_table_header **out_table,
+ acpi_size *tbl_size)
{
u32 i;
u32 j;
@@ -408,6 +409,7 @@ acpi_get_table(char *signature,
acpi_tb_verify_table(&acpi_gbl_root_table_list.tables[i]);
if (ACPI_SUCCESS(status)) {
*out_table = acpi_gbl_root_table_list.tables[i].pointer;
+ *tbl_size = acpi_gbl_root_table_list.tables[i].length;
}
if (!acpi_gbl_permanent_mmap) {
@@ -420,6 +422,15 @@ acpi_get_table(char *signature,
return (AE_NOT_FOUND);
}
+acpi_status
+acpi_get_table(char *signature,
+ u32 instance, struct acpi_table_header **out_table)
+{
+ acpi_size tbl_size;
+
+ return acpi_get_table_with_size(signature,
+ instance, out_table, &tbl_size);
+}
ACPI_EXPORT_SYMBOL(acpi_get_table)
/*******************************************************************************
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index b3193ec0a2ef..d1dd5160daa9 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -274,12 +274,19 @@ EXPORT_SYMBOL_GPL(acpi_os_map_memory);
void acpi_os_unmap_memory(void __iomem * virt, acpi_size size)
{
- if (acpi_gbl_permanent_mmap) {
+ if (acpi_gbl_permanent_mmap)
iounmap(virt);
- }
+ else
+ __acpi_unmap_table(virt, size);
}
EXPORT_SYMBOL_GPL(acpi_os_unmap_memory);
+void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size)
+{
+ if (!acpi_gbl_permanent_mmap)
+ __acpi_unmap_table(virt, size);
+}
+
#ifdef ACPI_FUTURE_USAGE
acpi_status
acpi_os_get_physical_address(void *virt, acpi_physical_address * phys)
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index a8852952fac4..fec1ae36d431 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -181,14 +181,15 @@ acpi_table_parse_entries(char *id,
struct acpi_subtable_header *entry;
unsigned int count = 0;
unsigned long table_end;
+ acpi_size tbl_size;
if (!handler)
return -EINVAL;
if (strncmp(id, ACPI_SIG_MADT, 4) == 0)
- acpi_get_table(id, acpi_apic_instance, &table_header);
+ acpi_get_table_with_size(id, acpi_apic_instance, &table_header, &tbl_size);
else
- acpi_get_table(id, 0, &table_header);
+ acpi_get_table_with_size(id, 0, &table_header, &tbl_size);
if (!table_header) {
printk(KERN_WARNING PREFIX "%4.4s not present\n", id);
@@ -206,8 +207,10 @@ acpi_table_parse_entries(char *id,
table_end) {
if (entry->type == entry_id
&& (!max_entries || count++ < max_entries))
- if (handler(entry, table_end))
+ if (handler(entry, table_end)) {
+ early_acpi_os_unmap_memory((char *)table_header, tbl_size);
return -EINVAL;
+ }
entry = (struct acpi_subtable_header *)
((unsigned long)entry + entry->length);
@@ -217,6 +220,7 @@ acpi_table_parse_entries(char *id,
"%i found\n", id, entry_id, count - max_entries, count);
}
+ early_acpi_os_unmap_memory((char *)table_header, tbl_size);
return count;
}
@@ -241,17 +245,19 @@ acpi_table_parse_madt(enum acpi_madt_type id,
int __init acpi_table_parse(char *id, acpi_table_handler handler)
{
struct acpi_table_header *table = NULL;
+ acpi_size tbl_size;
if (!handler)
return -EINVAL;
if (strncmp(id, ACPI_SIG_MADT, 4) == 0)
- acpi_get_table(id, acpi_apic_instance, &table);
+ acpi_get_table_with_size(id, acpi_apic_instance, &table, &tbl_size);
else
- acpi_get_table(id, 0, &table);
+ acpi_get_table_with_size(id, 0, &table, &tbl_size);
if (table) {
handler(table);
+ early_acpi_os_unmap_memory(table, tbl_size);
return 0;
} else
return 1;
@@ -265,8 +271,9 @@ int __init acpi_table_parse(char *id, acpi_table_handler handler)
static void __init check_multiple_madt(void)
{
struct acpi_table_header *table = NULL;
+ acpi_size tbl_size;
- acpi_get_table(ACPI_SIG_MADT, 2, &table);
+ acpi_get_table_with_size(ACPI_SIG_MADT, 2, &table, &tbl_size);
if (table) {
printk(KERN_WARNING PREFIX
"BIOS bug: multiple APIC/MADT found,"
@@ -275,6 +282,7 @@ static void __init check_multiple_madt(void)
"If \"acpi_apic_instance=%d\" works better, "
"notify linux-acpi@vger.kernel.org\n",
acpi_apic_instance ? 0 : 2);
+ early_acpi_os_unmap_memory(table, tbl_size);
} else
acpi_apic_instance = 0;
diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index e1129fad96dd..ee19b6e8fcb4 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -143,7 +143,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_LE,
#endif
#ifndef CONFIG_X86_64
-#include "mach_timer.h"
+#include <asm/mach_timer.h>
#define PMTMR_EXPECTED_RATE \
((CALIBRATE_LATCH * (PMTMR_TICKS_PER_SEC >> 10)) / (CLOCK_TICK_RATE>>10))
/*
diff --git a/drivers/clocksource/cyclone.c b/drivers/clocksource/cyclone.c
index 1bde303b970b..8615059a8729 100644
--- a/drivers/clocksource/cyclone.c
+++ b/drivers/clocksource/cyclone.c
@@ -7,7 +7,7 @@
#include <asm/pgtable.h>
#include <asm/io.h>
-#include "mach_timer.h"
+#include <asm/mach_timer.h>
#define CYCLONE_CBAR_ADDR 0xFEB00CD0 /* base address ptr */
#define CYCLONE_PMCC_OFFSET 0x51A0 /* offset to control register */
diff --git a/drivers/eisa/Kconfig b/drivers/eisa/Kconfig
index c0646576cf47..2705284f6223 100644
--- a/drivers/eisa/Kconfig
+++ b/drivers/eisa/Kconfig
@@ -3,7 +3,7 @@
#
config EISA_VLB_PRIMING
bool "Vesa Local Bus priming"
- depends on X86_PC && EISA
+ depends on X86 && EISA
default n
---help---
Activate this option if your system contains a Vesa Local
@@ -24,11 +24,11 @@ config EISA_PCI_EISA
When in doubt, say Y.
# Using EISA_VIRTUAL_ROOT on something other than an Alpha or
-# an X86_PC may lead to crashes...
+# an X86 may lead to crashes...
config EISA_VIRTUAL_ROOT
bool "EISA virtual root device"
- depends on EISA && (ALPHA || X86_PC)
+ depends on EISA && (ALPHA || X86)
default y
---help---
Activate this option if your system only have EISA bus
diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c
index 3ab3e4a41d67..7b7ddc2d51c9 100644
--- a/drivers/firmware/iscsi_ibft.c
+++ b/drivers/firmware/iscsi_ibft.c
@@ -938,8 +938,8 @@ static int __init ibft_init(void)
return -ENOMEM;
if (ibft_addr) {
- printk(KERN_INFO "iBFT detected at 0x%lx.\n",
- virt_to_phys((void *)ibft_addr));
+ printk(KERN_INFO "iBFT detected at 0x%llx.\n",
+ (u64)virt_to_phys((void *)ibft_addr));
rc = ibft_check_device();
if (rc)
diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c
index 8df849f66830..b756f043a5f4 100644
--- a/drivers/gpu/drm/drm_proc.c
+++ b/drivers/gpu/drm/drm_proc.c
@@ -678,9 +678,9 @@ static int drm__vma_info(char *buf, char **start, off_t offset, int request,
*start = &buf[offset];
*eof = 0;
- DRM_PROC_PRINT("vma use count: %d, high_memory = %p, 0x%08lx\n",
+ DRM_PROC_PRINT("vma use count: %d, high_memory = %p, 0x%llx\n",
atomic_read(&dev->vma_count),
- high_memory, virt_to_phys(high_memory));
+ high_memory, (u64)virt_to_phys(high_memory));
list_for_each_entry(pt, &dev->vmalist, head) {
if (!(vma = pt->vma))
continue;
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 35561689ff38..ea2638b41982 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -13,11 +13,11 @@ menuconfig INPUT_KEYBOARD
if INPUT_KEYBOARD
config KEYBOARD_ATKBD
- tristate "AT keyboard" if EMBEDDED || !X86_PC
+ tristate "AT keyboard" if EMBEDDED || !X86
default y
select SERIO
select SERIO_LIBPS2
- select SERIO_I8042 if X86_PC
+ select SERIO_I8042 if X86
select SERIO_GSCPS2 if GSC
help
Say Y here if you want to use a standard AT or PS/2 keyboard. Usually
diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index 093c8c1bca74..9bef935ef19f 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -17,7 +17,7 @@ config MOUSE_PS2
default y
select SERIO
select SERIO_LIBPS2
- select SERIO_I8042 if X86_PC
+ select SERIO_I8042 if X86
select SERIO_GSCPS2 if GSC
help
Say Y here if you have a PS/2 mouse connected to your system. This
diff --git a/drivers/misc/sgi-gru/gru.h b/drivers/misc/sgi-gru/gru.h
index 1b5f579df15f..f93f03a9e6e9 100644
--- a/drivers/misc/sgi-gru/gru.h
+++ b/drivers/misc/sgi-gru/gru.h
@@ -19,8 +19,6 @@
#ifndef __GRU_H__
#define __GRU_H__
-#include <asm/uv/uv.h>
-
/*
* GRU architectural definitions
*/
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index 650983806392..c67e4e8bd62c 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -36,23 +36,11 @@
#include <linux/interrupt.h>
#include <linux/proc_fs.h>
#include <linux/uaccess.h>
+#include <asm/uv/uv.h>
#include "gru.h"
#include "grulib.h"
#include "grutables.h"
-#if defined CONFIG_X86_64
-#include <asm/genapic.h>
-#include <asm/irq.h>
-#define IS_UV() is_uv_system()
-#elif defined CONFIG_IA64
-#include <asm/system.h>
-#include <asm/sn/simulator.h>
-/* temp support for running on hardware simulator */
-#define IS_UV() IS_MEDUSA() || ia64_platform_is("uv")
-#else
-#define IS_UV() 0
-#endif
-
#include <asm/uv/uv_hub.h>
#include <asm/uv/uv_mmrs.h>
@@ -381,7 +369,7 @@ static int __init gru_init(void)
char id[10];
void *gru_start_vaddr;
- if (!IS_UV())
+ if (!is_uv_system())
return 0;
#if defined CONFIG_IA64
@@ -451,7 +439,7 @@ static void __exit gru_exit(void)
int order = get_order(sizeof(struct gru_state) *
GRU_CHIPLETS_PER_BLADE);
- if (!IS_UV())
+ if (!is_uv_system())
return;
for (i = 0; i < GRU_CHIPLETS_PER_BLADE; i++)
diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h
index 069ad3a1c2ac..2275126cb334 100644
--- a/drivers/misc/sgi-xp/xp.h
+++ b/drivers/misc/sgi-xp/xp.h
@@ -15,21 +15,19 @@
#include <linux/mutex.h>
+#if defined CONFIG_X86_UV || defined CONFIG_IA64_SGI_UV
#include <asm/uv/uv.h>
+#define is_uv() is_uv_system()
+#endif
+
+#ifndef is_uv
+#define is_uv() 0
+#endif
-#ifdef CONFIG_IA64
+#if defined CONFIG_IA64
#include <asm/system.h>
#include <asm/sn/arch.h> /* defines is_shub1() and is_shub2() */
#define is_shub() ia64_platform_is("sn2")
-#ifdef CONFIG_IA64_SGI_UV
-#define is_uv() ia64_platform_is("uv")
-#else
-#define is_uv() 0
-#endif
-#endif
-#ifdef CONFIG_X86_64
-#include <asm/genapic.h>
-#define is_uv() is_uv_system()
#endif
#ifndef is_shub1
@@ -44,10 +42,6 @@
#define is_shub() 0
#endif
-#ifndef is_uv
-#define is_uv() 0
-#endif
-
#ifdef USE_DBUG_ON
#define DBUG_ON(condition) BUG_ON(condition)
#else
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 8b12e6e109d3..2ff88791cebc 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -273,7 +273,7 @@ config MTD_NAND_CAFE
config MTD_NAND_CS553X
tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
- depends on X86_32 && (X86_PC || X86_GENERICARCH)
+ depends on X86_32
help
The CS553x companion chips for the AMD Geode processor
include NAND flash controllers with built-in hardware ECC
diff --git a/drivers/net/ne3210.c b/drivers/net/ne3210.c
index fac43fd6fc87..6a843f7350ab 100644
--- a/drivers/net/ne3210.c
+++ b/drivers/net/ne3210.c
@@ -150,7 +150,8 @@ static int __init ne3210_eisa_probe (struct device *device)
if (phys_mem < virt_to_phys(high_memory)) {
printk(KERN_CRIT "ne3210.c: Card RAM overlaps with normal memory!!!\n");
printk(KERN_CRIT "ne3210.c: Use EISA SCU to set card memory below 1MB,\n");
- printk(KERN_CRIT "ne3210.c: or to an address above 0x%lx.\n", virt_to_phys(high_memory));
+ printk(KERN_CRIT "ne3210.c: or to an address above 0x%llx.\n",
+ (u64)virt_to_phys(high_memory));
printk(KERN_CRIT "ne3210.c: Driver NOT installed.\n");
retval = -EINVAL;
goto out3;
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index d5378e60fcdd..064307c2277e 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -338,10 +338,10 @@ static int falcon_alloc_special_buffer(struct efx_nic *efx,
nic_data->next_buffer_table += buffer->entries;
EFX_LOG(efx, "allocating special buffers %d-%d at %llx+%x "
- "(virt %p phys %lx)\n", buffer->index,
+ "(virt %p phys %llx)\n", buffer->index,
buffer->index + buffer->entries - 1,
- (unsigned long long)buffer->dma_addr, len,
- buffer->addr, virt_to_phys(buffer->addr));
+ (u64)buffer->dma_addr, len,
+ buffer->addr, (u64)virt_to_phys(buffer->addr));
return 0;
}
@@ -353,10 +353,10 @@ static void falcon_free_special_buffer(struct efx_nic *efx,
return;
EFX_LOG(efx, "deallocating special buffers %d-%d at %llx+%x "
- "(virt %p phys %lx)\n", buffer->index,
+ "(virt %p phys %llx)\n", buffer->index,
buffer->index + buffer->entries - 1,
- (unsigned long long)buffer->dma_addr, buffer->len,
- buffer->addr, virt_to_phys(buffer->addr));
+ (u64)buffer->dma_addr, buffer->len,
+ buffer->addr, (u64)virt_to_phys(buffer->addr));
pci_free_consistent(efx->pci_dev, buffer->len, buffer->addr,
buffer->dma_addr);
@@ -2343,10 +2343,10 @@ int falcon_probe_port(struct efx_nic *efx)
FALCON_MAC_STATS_SIZE);
if (rc)
return rc;
- EFX_LOG(efx, "stats buffer at %llx (virt %p phys %lx)\n",
- (unsigned long long)efx->stats_buffer.dma_addr,
+ EFX_LOG(efx, "stats buffer at %llx (virt %p phys %llx)\n",
+ (u64)efx->stats_buffer.dma_addr,
efx->stats_buffer.addr,
- virt_to_phys(efx->stats_buffer.addr));
+ (u64)virt_to_phys(efx->stats_buffer.addr));
return 0;
}
@@ -2921,9 +2921,9 @@ int falcon_probe_nic(struct efx_nic *efx)
goto fail4;
BUG_ON(efx->irq_status.dma_addr & 0x0f);
- EFX_LOG(efx, "INT_KER at %llx (virt %p phys %lx)\n",
- (unsigned long long)efx->irq_status.dma_addr,
- efx->irq_status.addr, virt_to_phys(efx->irq_status.addr));
+ EFX_LOG(efx, "INT_KER at %llx (virt %p phys %llx)\n",
+ (u64)efx->irq_status.dma_addr,
+ efx->irq_status.addr, (u64)virt_to_phys(efx->irq_status.addr));
falcon_probe_spi_devices(efx);
diff --git a/drivers/net/wireless/arlan-main.c b/drivers/net/wireless/arlan-main.c
index bfca15da6f0f..14c11656e82c 100644
--- a/drivers/net/wireless/arlan-main.c
+++ b/drivers/net/wireless/arlan-main.c
@@ -1082,8 +1082,8 @@ static int __init arlan_probe_here(struct net_device *dev,
if (arlan_check_fingerprint(memaddr))
return -ENODEV;
- printk(KERN_NOTICE "%s: Arlan found at %x, \n ", dev->name,
- (int) virt_to_phys((void*)memaddr));
+ printk(KERN_NOTICE "%s: Arlan found at %llx, \n ", dev->name,
+ (u64) virt_to_phys((void*)memaddr));
ap->card = (void *) memaddr;
dev->mem_start = memaddr;
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index f5a662a50acb..519f5f91e765 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -42,6 +42,7 @@
LIST_HEAD(dmar_drhd_units);
static struct acpi_table_header * __initdata dmar_tbl;
+static acpi_size dmar_tbl_size;
static void __init dmar_register_drhd_unit(struct dmar_drhd_unit *drhd)
{
@@ -288,8 +289,9 @@ static int __init dmar_table_detect(void)
acpi_status status = AE_OK;
/* if we could find DMAR table, then there are DMAR devices */
- status = acpi_get_table(ACPI_SIG_DMAR, 0,
- (struct acpi_table_header **)&dmar_tbl);
+ status = acpi_get_table_with_size(ACPI_SIG_DMAR, 0,
+ (struct acpi_table_header **)&dmar_tbl,
+ &dmar_tbl_size);
if (ACPI_SUCCESS(status) && !dmar_tbl) {
printk (KERN_WARNING PREFIX "Unable to map DMAR\n");
@@ -481,6 +483,7 @@ void __init detect_intel_iommu(void)
iommu_detected = 1;
#endif
}
+ early_acpi_os_unmap_memory(dmar_tbl, dmar_tbl_size);
dmar_tbl = NULL;
}
diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c
index bf92802f2bbe..36e221beedcd 100644
--- a/drivers/watchdog/rdc321x_wdt.c
+++ b/drivers/watchdog/rdc321x_wdt.c
@@ -37,7 +37,7 @@
#include <linux/io.h>
#include <linux/uaccess.h>
-#include <asm/mach-rdc321x/rdc321x_defs.h>
+#include <asm/rdc321x_defs.h>
#define RDC_WDT_MASK 0x80000000 /* Mask */
#define RDC_WDT_EN 0x00800000 /* Enable bit */
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 3141e149d595..30963af5dba0 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -30,6 +30,7 @@
#include <asm/ptrace.h>
#include <asm/irq.h>
+#include <asm/idle.h>
#include <asm/sync_bitops.h>
#include <asm/xen/hypercall.h>
#include <asm/xen/hypervisor.h>
@@ -51,27 +52,43 @@ static DEFINE_PER_CPU(int, virq_to_irq[NR_VIRQS]) = {[0 ... NR_VIRQS-1] = -1};
/* IRQ <-> IPI mapping */
static DEFINE_PER_CPU(int, ipi_to_irq[XEN_NR_IPIS]) = {[0 ... XEN_NR_IPIS-1] = -1};
-/* Packed IRQ information: binding type, sub-type index, and event channel. */
-struct packed_irq
-{
- unsigned short evtchn;
- unsigned char index;
- unsigned char type;
-};
-
-static struct packed_irq irq_info[NR_IRQS];
-
-/* Binding types. */
-enum {
- IRQT_UNBOUND,
+/* Interrupt types. */
+enum xen_irq_type {
+ IRQT_UNBOUND = 0,
IRQT_PIRQ,
IRQT_VIRQ,
IRQT_IPI,
IRQT_EVTCHN
};
-/* Convenient shorthand for packed representation of an unbound IRQ. */
-#define IRQ_UNBOUND mk_irq_info(IRQT_UNBOUND, 0, 0)
+/*
+ * Packed IRQ information:
+ * type - enum xen_irq_type
+ * event channel - irq->event channel mapping
+ * cpu - cpu this event channel is bound to
+ * index - type-specific information:
+ * PIRQ - vector, with MSB being "needs EIO"
+ * VIRQ - virq number
+ * IPI - IPI vector
+ * EVTCHN -
+ */
+struct irq_info
+{
+ enum xen_irq_type type; /* type */
+ unsigned short evtchn; /* event channel */
+ unsigned short cpu; /* cpu bound */
+
+ union {
+ unsigned short virq;
+ enum ipi_vector ipi;
+ struct {
+ unsigned short gsi;
+ unsigned short vector;
+ } pirq;
+ } u;
+};
+
+static struct irq_info irq_info[NR_IRQS];
static int evtchn_to_irq[NR_EVENT_CHANNELS] = {
[0 ... NR_EVENT_CHANNELS-1] = -1
@@ -84,10 +101,6 @@ static inline unsigned long *cpu_evtchn_mask(int cpu)
{
return cpu_evtchn_mask_p[cpu].bits;
}
-static u8 cpu_evtchn[NR_EVENT_CHANNELS];
-
-/* Reference counts for bindings to IRQs. */
-static int irq_bindcount[NR_IRQS];
/* Xen will never allocate port zero for any purpose. */
#define VALID_EVTCHN(chn) ((chn) != 0)
@@ -95,27 +108,108 @@ static int irq_bindcount[NR_IRQS];
static struct irq_chip xen_dynamic_chip;
/* Constructor for packed IRQ information. */
-static inline struct packed_irq mk_irq_info(u32 type, u32 index, u32 evtchn)
+static struct irq_info mk_unbound_info(void)
+{
+ return (struct irq_info) { .type = IRQT_UNBOUND };
+}
+
+static struct irq_info mk_evtchn_info(unsigned short evtchn)
+{
+ return (struct irq_info) { .type = IRQT_EVTCHN, .evtchn = evtchn,
+ .cpu = 0 };
+}
+
+static struct irq_info mk_ipi_info(unsigned short evtchn, enum ipi_vector ipi)
+{
+ return (struct irq_info) { .type = IRQT_IPI, .evtchn = evtchn,
+ .cpu = 0, .u.ipi = ipi };
+}
+
+static struct irq_info mk_virq_info(unsigned short evtchn, unsigned short virq)
{
- return (struct packed_irq) { evtchn, index, type };
+ return (struct irq_info) { .type = IRQT_VIRQ, .evtchn = evtchn,
+ .cpu = 0, .u.virq = virq };
+}
+
+static struct irq_info mk_pirq_info(unsigned short evtchn,
+ unsigned short gsi, unsigned short vector)
+{
+ return (struct irq_info) { .type = IRQT_PIRQ, .evtchn = evtchn,
+ .cpu = 0, .u.pirq = { .gsi = gsi, .vector = vector } };
}
/*
* Accessors for packed IRQ information.
*/
-static inline unsigned int evtchn_from_irq(int irq)
+static struct irq_info *info_for_irq(unsigned irq)
{
- return irq_info[irq].evtchn;
+ return &irq_info[irq];
}
-static inline unsigned int index_from_irq(int irq)
+static unsigned int evtchn_from_irq(unsigned irq)
{
- return irq_info[irq].index;
+ return info_for_irq(irq)->evtchn;
}
-static inline unsigned int type_from_irq(int irq)
+static enum ipi_vector ipi_from_irq(unsigned irq)
{
- return irq_info[irq].type;
+ struct irq_info *info = info_for_irq(irq);
+
+ BUG_ON(info == NULL);
+ BUG_ON(info->type != IRQT_IPI);
+
+ return info->u.ipi;
+}
+
+static unsigned virq_from_irq(unsigned irq)
+{
+ struct irq_info *info = info_for_irq(irq);
+
+ BUG_ON(info == NULL);
+ BUG_ON(info->type != IRQT_VIRQ);
+
+ return info->u.virq;
+}
+
+static unsigned gsi_from_irq(unsigned irq)
+{
+ struct irq_info *info = info_for_irq(irq);
+
+ BUG_ON(info == NULL);
+ BUG_ON(info->type != IRQT_PIRQ);
+
+ return info->u.pirq.gsi;
+}
+
+static unsigned vector_from_irq(unsigned irq)
+{
+ struct irq_info *info = info_for_irq(irq);
+
+ BUG_ON(info == NULL);
+ BUG_ON(info->type != IRQT_PIRQ);
+
+ return info->u.pirq.vector;
+}
+
+static enum xen_irq_type type_from_irq(unsigned irq)
+{
+ return info_for_irq(irq)->type;
+}
+
+static unsigned cpu_from_irq(unsigned irq)
+{
+ return info_for_irq(irq)->cpu;
+}
+
+static unsigned int cpu_from_evtchn(unsigned int evtchn)
+{
+ int irq = evtchn_to_irq[evtchn];
+ unsigned ret = 0;
+
+ if (irq != -1)
+ ret = cpu_from_irq(irq);
+
+ return ret;
}
static inline unsigned long active_evtchns(unsigned int cpu,
@@ -136,10 +230,10 @@ static void bind_evtchn_to_cpu(unsigned int chn, unsigned int cpu)
cpumask_copy(irq_to_desc(irq)->affinity, cpumask_of(cpu));
#endif
- __clear_bit(chn, cpu_evtchn_mask(cpu_evtchn[chn]));
+ __clear_bit(chn, cpu_evtchn_mask(cpu_from_irq(irq)));
__set_bit(chn, cpu_evtchn_mask(cpu));
- cpu_evtchn[chn] = cpu;
+ irq_info[irq].cpu = cpu;
}
static void init_evtchn_cpu_bindings(void)
@@ -154,15 +248,9 @@ static void init_evtchn_cpu_bindings(void)
}
#endif
- memset(cpu_evtchn, 0, sizeof(cpu_evtchn));
memset(cpu_evtchn_mask(0), ~0, sizeof(cpu_evtchn_mask(0)));
}
-static inline unsigned int cpu_from_evtchn(unsigned int evtchn)
-{
- return cpu_evtchn[evtchn];
-}
-
static inline void clear_evtchn(int port)
{
struct shared_info *s = HYPERVISOR_shared_info;
@@ -240,9 +328,8 @@ static int find_unbound_irq(void)
int irq;
struct irq_desc *desc;
- /* Only allocate from dynirq range */
for (irq = 0; irq < nr_irqs; irq++)
- if (irq_bindcount[irq] == 0)
+ if (irq_info[irq].type == IRQT_UNBOUND)
break;
if (irq == nr_irqs)
@@ -252,6 +339,8 @@ static int find_unbound_irq(void)
if (WARN_ON(desc == NULL))
return -1;
+ dynamic_irq_init(irq);
+
return irq;
}
@@ -266,16 +355,13 @@ int bind_evtchn_to_irq(unsigned int evtchn)
if (irq == -1) {
irq = find_unbound_irq();
- dynamic_irq_init(irq);
set_irq_chip_and_handler_name(irq, &xen_dynamic_chip,
handle_level_irq, "event");
evtchn_to_irq[evtchn] = irq;
- irq_info[irq] = mk_irq_info(IRQT_EVTCHN, 0, evtchn);
+ irq_info[irq] = mk_evtchn_info(evtchn);
}
- irq_bindcount[irq]++;
-
spin_unlock(&irq_mapping_update_lock);
return irq;
@@ -290,12 +376,12 @@ static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
spin_lock(&irq_mapping_update_lock);
irq = per_cpu(ipi_to_irq, cpu)[ipi];
+
if (irq == -1) {
irq = find_unbound_irq();
if (irq < 0)
goto out;
- dynamic_irq_init(irq);
set_irq_chip_and_handler_name(irq, &xen_dynamic_chip,
handle_level_irq, "ipi");
@@ -306,15 +392,12 @@ static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
evtchn = bind_ipi.port;
evtchn_to_irq[evtchn] = irq;
- irq_info[irq] = mk_irq_info(IRQT_IPI, ipi, evtchn);
-
+ irq_info[irq] = mk_ipi_info(evtchn, ipi);
per_cpu(ipi_to_irq, cpu)[ipi] = irq;
bind_evtchn_to_cpu(evtchn, cpu);
}
- irq_bindcount[irq]++;
-
out:
spin_unlock(&irq_mapping_update_lock);
return irq;
@@ -340,20 +423,17 @@ static int bind_virq_to_irq(unsigned int virq, unsigned int cpu)
irq = find_unbound_irq();
- dynamic_irq_init(irq);
set_irq_chip_and_handler_name(irq, &xen_dynamic_chip,
handle_level_irq, "virq");
evtchn_to_irq[evtchn] = irq;
- irq_info[irq] = mk_irq_info(IRQT_VIRQ, virq, evtchn);
+ irq_info[irq] = mk_virq_info(evtchn, virq);
per_cpu(virq_to_irq, cpu)[virq] = irq;
bind_evtchn_to_cpu(evtchn, cpu);
}
- irq_bindcount[irq]++;
-
spin_unlock(&irq_mapping_update_lock);
return irq;
@@ -366,7 +446,7 @@ static void unbind_from_irq(unsigned int irq)
spin_lock(&irq_mapping_update_lock);
- if ((--irq_bindcount[irq] == 0) && VALID_EVTCHN(evtchn)) {
+ if (VALID_EVTCHN(evtchn)) {
close.port = evtchn;
if (HYPERVISOR_event_channel_op(EVTCHNOP_close, &close) != 0)
BUG();
@@ -374,11 +454,11 @@ static void unbind_from_irq(unsigned int irq)
switch (type_from_irq(irq)) {
case IRQT_VIRQ:
per_cpu(virq_to_irq, cpu_from_evtchn(evtchn))
- [index_from_irq(irq)] = -1;
+ [virq_from_irq(irq)] = -1;
break;
case IRQT_IPI:
per_cpu(ipi_to_irq, cpu_from_evtchn(evtchn))
- [index_from_irq(irq)] = -1;
+ [ipi_from_irq(irq)] = -1;
break;
default:
break;
@@ -388,7 +468,7 @@ static void unbind_from_irq(unsigned int irq)
bind_evtchn_to_cpu(evtchn, 0);
evtchn_to_irq[evtchn] = -1;
- irq_info[irq] = IRQ_UNBOUND;
+ irq_info[irq] = mk_unbound_info();
dynamic_irq_cleanup(irq);
}
@@ -506,8 +586,8 @@ irqreturn_t xen_debug_interrupt(int irq, void *dev_id)
for(i = 0; i < NR_EVENT_CHANNELS; i++) {
if (sync_test_bit(i, sh->evtchn_pending)) {
printk(" %d: event %d -> irq %d\n",
- cpu_evtchn[i], i,
- evtchn_to_irq[i]);
+ cpu_from_evtchn(i), i,
+ evtchn_to_irq[i]);
}
}
@@ -516,7 +596,6 @@ irqreturn_t xen_debug_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
}
-
/*
* Search the CPUs pending events bitmasks. For each one found, map
* the event number to an irq, and feed it into do_IRQ() for
@@ -529,11 +608,15 @@ irqreturn_t xen_debug_interrupt(int irq, void *dev_id)
void xen_evtchn_do_upcall(struct pt_regs *regs)
{
int cpu = get_cpu();
+ struct pt_regs *old_regs = set_irq_regs(regs);
struct shared_info *s = HYPERVISOR_shared_info;
struct vcpu_info *vcpu_info = __get_cpu_var(xen_vcpu);
static DEFINE_PER_CPU(unsigned, nesting_count);
unsigned count;
+ exit_idle();
+ irq_enter();
+
do {
unsigned long pending_words;
@@ -558,7 +641,7 @@ void xen_evtchn_do_upcall(struct pt_regs *regs)
int irq = evtchn_to_irq[port];
if (irq != -1)
- xen_do_IRQ(irq, regs);
+ handle_irq(irq, regs);
}
}
@@ -569,12 +652,17 @@ void xen_evtchn_do_upcall(struct pt_regs *regs)
} while(count != 1);
out:
+ irq_exit();
+ set_irq_regs(old_regs);
+
put_cpu();
}
/* Rebind a new event channel to an existing irq. */
void rebind_evtchn_irq(int evtchn, int irq)
{
+ struct irq_info *info = info_for_irq(irq);
+
/* Make sure the irq is masked, since the new event channel
will also be masked. */
disable_irq(irq);
@@ -584,11 +672,11 @@ void rebind_evtchn_irq(int evtchn, int irq)
/* After resume the irq<->evtchn mappings are all cleared out */
BUG_ON(evtchn_to_irq[evtchn] != -1);
/* Expect irq to have been bound before,
- so the bindcount should be non-0 */
- BUG_ON(irq_bindcount[irq] == 0);
+ so there should be a proper type */
+ BUG_ON(info->type == IRQT_UNBOUND);
evtchn_to_irq[evtchn] = irq;
- irq_info[irq] = mk_irq_info(IRQT_EVTCHN, 0, evtchn);
+ irq_info[irq] = mk_evtchn_info(evtchn);
spin_unlock(&irq_mapping_update_lock);
@@ -698,8 +786,7 @@ static void restore_cpu_virqs(unsigned int cpu)
if ((irq = per_cpu(virq_to_irq, cpu)[virq]) == -1)
continue;
- BUG_ON(irq_info[irq].type != IRQT_VIRQ);
- BUG_ON(irq_info[irq].index != virq);
+ BUG_ON(virq_from_irq(irq) != virq);
/* Get a new binding from Xen. */
bind_virq.virq = virq;
@@ -711,7 +798,7 @@ static void restore_cpu_virqs(unsigned int cpu)
/* Record the new mapping. */
evtchn_to_irq[evtchn] = irq;
- irq_info[irq] = mk_irq_info(IRQT_VIRQ, virq, evtchn);
+ irq_info[irq] = mk_virq_info(evtchn, virq);
bind_evtchn_to_cpu(evtchn, cpu);
/* Ready for use. */
@@ -728,8 +815,7 @@ static void restore_cpu_ipis(unsigned int cpu)
if ((irq = per_cpu(ipi_to_irq, cpu)[ipi]) == -1)
continue;
- BUG_ON(irq_info[irq].type != IRQT_IPI);
- BUG_ON(irq_info[irq].index != ipi);
+ BUG_ON(ipi_from_irq(irq) != ipi);
/* Get a new binding from Xen. */
bind_ipi.vcpu = cpu;
@@ -740,7 +826,7 @@ static void restore_cpu_ipis(unsigned int cpu)
/* Record the new mapping. */
evtchn_to_irq[evtchn] = irq;
- irq_info[irq] = mk_irq_info(IRQT_IPI, ipi, evtchn);
+ irq_info[irq] = mk_ipi_info(evtchn, ipi);
bind_evtchn_to_cpu(evtchn, cpu);
/* Ready for use. */
@@ -820,8 +906,11 @@ void xen_irq_resume(void)
static struct irq_chip xen_dynamic_chip __read_mostly = {
.name = "xen-dyn",
+
+ .disable = disable_dynirq,
.mask = disable_dynirq,
.unmask = enable_dynirq,
+
.ack = ack_dynirq,
.set_affinity = set_affinity_irq,
.retrigger = retrigger_dynirq,
@@ -841,9 +930,5 @@ void __init xen_init_IRQ(void)
for (i = 0; i < NR_EVENT_CHANNELS; i++)
mask_evtchn(i);
- /* Dynamic IRQ space is currently unbound. Zero the refcnts. */
- for (i = 0; i < nr_irqs; i++)
- irq_bindcount[i] = 0;
-
irq_ctx_init(smp_processor_id());
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 17:14:22 +0000