[PATCH 3/5] ARM: GIC: consolidate gic_cpu_base_addr to common GIC code
Russell King - ARM Linux
linux at arm.linux.org.uk
Sun Dec 5 06:34:59 EST 2010
Every architecture using the GIC has a gic_cpu_base_addr pointer for
GIC 0 for their entry assembly code to use to decode the cause of the
current interrupt. Move this into the common GIC code.
Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
---
arch/arm/common/gic.c | 5 +++++
arch/arm/include/asm/hardware/gic.h | 2 ++
arch/arm/mach-cns3xxx/core.c | 5 +----
arch/arm/mach-cns3xxx/core.h | 1 -
arch/arm/mach-msm/board-msm8x60.c | 6 ++----
arch/arm/mach-omap2/include/mach/omap4-common.h | 1 -
arch/arm/mach-omap2/omap4-common.c | 9 +++++----
arch/arm/mach-realview/core.c | 3 ---
arch/arm/mach-realview/core.h | 1 -
arch/arm/mach-realview/realview_eb.c | 6 ++----
arch/arm/mach-realview/realview_pb1176.c | 3 +--
arch/arm/mach-realview/realview_pb11mp.c | 3 +--
arch/arm/mach-realview/realview_pba8.c | 1 -
arch/arm/mach-realview/realview_pbx.c | 2 --
arch/arm/mach-s5pv310/cpu.c | 3 ---
arch/arm/mach-s5pv310/include/mach/smp.h | 2 --
arch/arm/mach-vexpress/core.h | 2 --
arch/arm/mach-vexpress/ct-ca9x4.c | 6 ++----
18 files changed, 21 insertions(+), 40 deletions(-)
diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c
index 12b6a08..c48634a 100644
--- a/arch/arm/common/gic.c
+++ b/arch/arm/common/gic.c
@@ -35,6 +35,9 @@
static DEFINE_SPINLOCK(irq_controller_lock);
+/* Address of GIC 0 CPU interface */
+void __iomem *gic_cpu_base_addr;
+
struct gic_chip_data {
unsigned int irq_offset;
void __iomem *dist_base;
@@ -309,6 +312,8 @@ static void __cpuinit gic_cpu_init(unsigned int gic_nr, void __iomem *base)
void __init gic_init(unsigned int gic_nr, unsigned int irq_start,
void __iomem *dist_base, void __iomem *cpu_base)
{
+ if (gic_nr == 0)
+ gic_cpu_base_addr = cpu_base;
gic_dist_init(gic_nr, dist_base, irq_start);
gic_cpu_init(gic_nr, cpu_base);
}
diff --git a/arch/arm/include/asm/hardware/gic.h b/arch/arm/include/asm/hardware/gic.h
index 48876a3..a82a777 100644
--- a/arch/arm/include/asm/hardware/gic.h
+++ b/arch/arm/include/asm/hardware/gic.h
@@ -33,6 +33,8 @@
#define GIC_DIST_SOFTINT 0xf00
#ifndef __ASSEMBLY__
+extern void __iomem *gic_cpu_base_addr;
+
void gic_init(unsigned int, unsigned int, void __iomem *, void __iomem *);
void gic_secondary_init(unsigned int);
void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c
index e9c4915..da30078 100644
--- a/arch/arm/mach-cns3xxx/core.c
+++ b/arch/arm/mach-cns3xxx/core.c
@@ -69,13 +69,10 @@ void __init cns3xxx_map_io(void)
}
/* used by entry-macro.S */
-void __iomem *gic_cpu_base_addr;
-
void __init cns3xxx_init_irq(void)
{
- gic_cpu_base_addr = __io(CNS3XXX_TC11MP_GIC_CPU_BASE_VIRT);
gic_init(0, 29, __io(CNS3XXX_TC11MP_GIC_DIST_BASE_VIRT),
- gic_cpu_base_addr);
+ __io(CNS3XXX_TC11MP_GIC_CPU_BASE_VIRT));
}
void cns3xxx_power_off(void)
diff --git a/arch/arm/mach-cns3xxx/core.h b/arch/arm/mach-cns3xxx/core.h
index 6b33ec1..ef9e511 100644
--- a/arch/arm/mach-cns3xxx/core.h
+++ b/arch/arm/mach-cns3xxx/core.h
@@ -11,7 +11,6 @@
#ifndef __CNS3XXX_CORE_H
#define __CNS3XXX_CORE_H
-extern void __iomem *gic_cpu_base_addr;
extern struct sys_timer cns3xxx_timer;
void __init cns3xxx_map_io(void);
diff --git a/arch/arm/mach-msm/board-msm8x60.c b/arch/arm/mach-msm/board-msm8x60.c
index aaf8ec8..9b5eb2b 100644
--- a/arch/arm/mach-msm/board-msm8x60.c
+++ b/arch/arm/mach-msm/board-msm8x60.c
@@ -28,8 +28,6 @@
#include <mach/board.h>
#include <mach/msm_iomap.h>
-void __iomem *gic_cpu_base_addr;
-
unsigned long clk_get_max_axi_khz(void)
{
return 0;
@@ -44,8 +42,8 @@ static void __init msm8x60_init_irq(void)
{
unsigned int i;
- gic_cpu_base_addr = (void *)MSM_QGIC_CPU_BASE;
- gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE, gic_cpu_base_addr);
+ gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE,
+ (void *)MSM_QGIC_CPU_BASE);
/* Edge trigger PPIs except AVS_SVICINT and AVS_SVICINTSWDONE */
writel(0xFFFFD7FF, MSM_QGIC_DIST_BASE + GIC_DIST_CONFIG + 4);
diff --git a/arch/arm/mach-omap2/include/mach/omap4-common.h b/arch/arm/mach-omap2/include/mach/omap4-common.h
index 2744dfe..5b0270b 100644
--- a/arch/arm/mach-omap2/include/mach/omap4-common.h
+++ b/arch/arm/mach-omap2/include/mach/omap4-common.h
@@ -24,7 +24,6 @@
extern void __iomem *l2cache_base;
#endif
-extern void __iomem *gic_cpu_base_addr;
extern void __iomem *gic_dist_base_addr;
extern void __init gic_init_irq(void);
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 3fd3df7..666e852 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -26,21 +26,22 @@
void __iomem *l2cache_base;
#endif
-void __iomem *gic_cpu_base_addr;
void __iomem *gic_dist_base_addr;
void __init gic_init_irq(void)
{
+ void __iomem *gic_cpu_base;
+
/* Static mapping, never released */
gic_dist_base_addr = ioremap(OMAP44XX_GIC_DIST_BASE, SZ_4K);
BUG_ON(!gic_dist_base_addr);
/* Static mapping, never released */
- gic_cpu_base_addr = ioremap(OMAP44XX_GIC_CPU_BASE, SZ_512);
- BUG_ON(!gic_cpu_base_addr);
+ gic_cpu_base = ioremap(OMAP44XX_GIC_CPU_BASE, SZ_512);
+ BUG_ON(!gic_cpu_base);
- gic_init(0, 29, gic_dist_base_addr, gic_cpu_base_addr);
+ gic_init(0, 29, gic_dist_base_addr, gic_cpu_base);
}
#ifdef CONFIG_CACHE_L2X0
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index 07c0815..e292eb8 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -54,9 +54,6 @@
#include "core.h"
-/* used by entry-macro.S and platsmp.c */
-void __iomem *gic_cpu_base_addr;
-
#ifdef CONFIG_ZONE_DMA
/*
* Adjust the zones if there are restrictions for DMA access.
diff --git a/arch/arm/mach-realview/core.h b/arch/arm/mach-realview/core.h
index 781bca6..693239d 100644
--- a/arch/arm/mach-realview/core.h
+++ b/arch/arm/mach-realview/core.h
@@ -53,7 +53,6 @@ extern struct platform_device realview_i2c_device;
extern struct mmci_platform_data realview_mmc0_plat_data;
extern struct mmci_platform_data realview_mmc1_plat_data;
extern struct clcd_board clcd_plat_data;
-extern void __iomem *gic_cpu_base_addr;
extern void __iomem *timer0_va_base;
extern void __iomem *timer1_va_base;
extern void __iomem *timer2_va_base;
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index 241bcbc..6ef5c5e 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -364,9 +364,8 @@ static void __init gic_init_irq(void)
writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
/* core tile GIC, primary */
- gic_cpu_base_addr = __io_address(REALVIEW_EB11MP_GIC_CPU_BASE);
gic_init(0, 29, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE),
- gic_cpu_base_addr);
+ __io_address(REALVIEW_EB11MP_GIC_CPU_BASE));
#ifndef CONFIG_REALVIEW_EB_ARM11MP_REVB
/* board GIC, secondary */
@@ -376,9 +375,8 @@ static void __init gic_init_irq(void)
#endif
} else {
/* board GIC, primary */
- gic_cpu_base_addr = __io_address(REALVIEW_EB_GIC_CPU_BASE);
gic_init(0, 29, __io_address(REALVIEW_EB_GIC_DIST_BASE),
- gic_cpu_base_addr);
+ __io_address(REALVIEW_EB_GIC_CPU_BASE));
}
}
diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c
index 8047b19..cbdc97a 100644
--- a/arch/arm/mach-realview/realview_pb1176.c
+++ b/arch/arm/mach-realview/realview_pb1176.c
@@ -304,10 +304,9 @@ static struct platform_device char_lcd_device = {
static void __init gic_init_irq(void)
{
/* ARM1176 DevChip GIC, primary */
- gic_cpu_base_addr = __io_address(REALVIEW_DC1176_GIC_CPU_BASE);
gic_init(0, IRQ_DC1176_GIC_START,
__io_address(REALVIEW_DC1176_GIC_DIST_BASE),
- gic_cpu_base_addr);
+ __io_address(REALVIEW_DC1176_GIC_CPU_BASE));
/* board GIC, secondary */
gic_init(1, IRQ_PB1176_GIC_START,
diff --git a/arch/arm/mach-realview/realview_pb11mp.c b/arch/arm/mach-realview/realview_pb11mp.c
index 6120426..8e8ab7d 100644
--- a/arch/arm/mach-realview/realview_pb11mp.c
+++ b/arch/arm/mach-realview/realview_pb11mp.c
@@ -309,9 +309,8 @@ static void __init gic_init_irq(void)
writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
/* ARM11MPCore test chip GIC, primary */
- gic_cpu_base_addr = __io_address(REALVIEW_TC11MP_GIC_CPU_BASE);
gic_init(0, 29, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE),
- gic_cpu_base_addr);
+ __io_address(REALVIEW_TC11MP_GIC_CPU_BASE));
/* board GIC, secondary */
gic_init(1, IRQ_PB11MP_GIC_START,
diff --git a/arch/arm/mach-realview/realview_pba8.c b/arch/arm/mach-realview/realview_pba8.c
index 90f492a..841118e 100644
--- a/arch/arm/mach-realview/realview_pba8.c
+++ b/arch/arm/mach-realview/realview_pba8.c
@@ -273,7 +273,6 @@ static struct platform_device pmu_device = {
static void __init gic_init_irq(void)
{
/* ARM PB-A8 on-board GIC */
- gic_cpu_base_addr = __io_address(REALVIEW_PBA8_GIC_CPU_BASE);
gic_init(0, IRQ_PBA8_GIC_START,
__io_address(REALVIEW_PBA8_GIC_DIST_BASE),
__io_address(REALVIEW_PBA8_GIC_CPU_BASE));
diff --git a/arch/arm/mach-realview/realview_pbx.c b/arch/arm/mach-realview/realview_pbx.c
index 86f28f7..02b755b 100644
--- a/arch/arm/mach-realview/realview_pbx.c
+++ b/arch/arm/mach-realview/realview_pbx.c
@@ -313,11 +313,9 @@ static void __init gic_init_irq(void)
{
/* ARM PBX on-board GIC */
if (core_tile_pbx11mp() || core_tile_pbxa9mp()) {
- gic_cpu_base_addr = __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE);
gic_init(0, 29, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE),
__io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE));
} else {
- gic_cpu_base_addr = __io_address(REALVIEW_PBX_GIC_CPU_BASE);
gic_init(0, IRQ_PBX_GIC_START,
__io_address(REALVIEW_PBX_GIC_DIST_BASE),
__io_address(REALVIEW_PBX_GIC_CPU_BASE));
diff --git a/arch/arm/mach-s5pv310/cpu.c b/arch/arm/mach-s5pv310/cpu.c
index bce3e91..72ab289 100644
--- a/arch/arm/mach-s5pv310/cpu.c
+++ b/arch/arm/mach-s5pv310/cpu.c
@@ -24,8 +24,6 @@
#include <mach/regs-irq.h>
-void __iomem *gic_cpu_base_addr;
-
extern int combiner_init(unsigned int combiner_nr, void __iomem *base,
unsigned int irq_start);
extern void combiner_cascade_irq(unsigned int combiner_nr, unsigned int irq);
@@ -122,7 +120,6 @@ void __init s5pv310_init_irq(void)
{
int irq;
- gic_cpu_base_addr = S5P_VA_GIC_CPU;
gic_init(0, IRQ_LOCALTIMER, S5P_VA_GIC_DIST, S5P_VA_GIC_CPU);
for (irq = 0; irq < MAX_COMBINER_NR; irq++) {
diff --git a/arch/arm/mach-s5pv310/include/mach/smp.h b/arch/arm/mach-s5pv310/include/mach/smp.h
index b7ec252..e1cc6a2 100644
--- a/arch/arm/mach-s5pv310/include/mach/smp.h
+++ b/arch/arm/mach-s5pv310/include/mach/smp.h
@@ -9,8 +9,6 @@
#include <asm/hardware/gic.h>
#include <asm/smp_mpidr.h>
-extern void __iomem *gic_cpu_base_addr;
-
/*
* We use IRQ1 as the IPI
*/
diff --git a/arch/arm/mach-vexpress/core.h b/arch/arm/mach-vexpress/core.h
index 57dd95c..362780d 100644
--- a/arch/arm/mach-vexpress/core.h
+++ b/arch/arm/mach-vexpress/core.h
@@ -22,5 +22,3 @@ struct map_desc;
void v2m_map_io(struct map_desc *tile, size_t num);
extern struct sys_timer v2m_timer;
-
-extern void __iomem *gic_cpu_base_addr;
diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c
index 25a3ca6..8e0a3b7 100644
--- a/arch/arm/mach-vexpress/ct-ca9x4.c
+++ b/arch/arm/mach-vexpress/ct-ca9x4.c
@@ -60,12 +60,10 @@ static void __init ct_ca9x4_map_io(void)
v2m_map_io(ct_ca9x4_io_desc, ARRAY_SIZE(ct_ca9x4_io_desc));
}
-void __iomem *gic_cpu_base_addr;
-
static void __init ct_ca9x4_init_irq(void)
{
- gic_cpu_base_addr = MMIO_P2V(A9_MPCORE_GIC_CPU);
- gic_init(0, 29, MMIO_P2V(A9_MPCORE_GIC_DIST), gic_cpu_base_addr);
+ gic_init(0, 29, MMIO_P2V(A9_MPCORE_GIC_DIST),
+ MMIO_P2V(A9_MPCORE_GIC_CPU));
}
#if 0
--
1.6.2.5
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