diff options
Diffstat (limited to 'arch/arc')
| -rw-r--r-- | arch/arc/Kconfig | 3 | ||||
| -rw-r--r-- | arch/arc/boot/dts/axs10x_mb.dtsi | 8 | ||||
| -rw-r--r-- | arch/arc/configs/axs103_defconfig | 1 | ||||
| -rw-r--r-- | arch/arc/configs/axs103_smp_defconfig | 1 | ||||
| -rw-r--r-- | arch/arc/include/asm/fb.h | 19 | ||||
| -rw-r--r-- | arch/arc/include/asm/irqflags-arcv2.h | 36 | ||||
| -rw-r--r-- | arch/arc/kernel/entry-arcv2.S | 10 | ||||
| -rw-r--r-- | arch/arc/kernel/entry-compact.S | 3 | ||||
| -rw-r--r-- | arch/arc/mm/init.c | 4 |
9 files changed, 74 insertions, 11 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 208aae071b37..ec4791ea6911 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -35,8 +35,10 @@ config ARC select NO_BOOTMEM select OF select OF_EARLY_FLATTREE + select OF_RESERVED_MEM select PERF_USE_VMALLOC select HAVE_DEBUG_STACKOVERFLOW + select HAVE_GENERIC_DMA_COHERENT config MIGHT_HAVE_PCI bool @@ -593,7 +595,6 @@ config PCI_SYSCALL def_bool PCI source "drivers/pci/Kconfig" -source "drivers/pci/pcie/Kconfig" endmenu diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi index ab5d5701e11d..44a578c10732 100644 --- a/arch/arc/boot/dts/axs10x_mb.dtsi +++ b/arch/arc/boot/dts/axs10x_mb.dtsi @@ -47,14 +47,6 @@ clocks = <&apbclk>; clock-names = "stmmaceth"; max-speed = <100>; - mdio0 { - #address-cells = <1>; - #size-cells = <0>; - compatible = "snps,dwmac-mdio"; - phy1: ethernet-phy@1 { - reg = <1>; - }; - }; }; ehci@0x40000 { diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig index f8b396c9aedb..491b3b5f22bd 100644 --- a/arch/arc/configs/axs103_defconfig +++ b/arch/arc/configs/axs103_defconfig @@ -42,6 +42,7 @@ CONFIG_DEVTMPFS=y # CONFIG_STANDALONE is not set # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FIRMWARE_IN_KERNEL is not set +CONFIG_BLK_DEV_LOOP=y CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_NETDEVICES=y diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig index 56128ea2b748..b25ee73b2e79 100644 --- a/arch/arc/configs/axs103_smp_defconfig +++ b/arch/arc/configs/axs103_smp_defconfig @@ -43,6 +43,7 @@ CONFIG_DEVTMPFS=y # CONFIG_STANDALONE is not set # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FIRMWARE_IN_KERNEL is not set +CONFIG_BLK_DEV_LOOP=y CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_NETDEVICES=y diff --git a/arch/arc/include/asm/fb.h b/arch/arc/include/asm/fb.h new file mode 100644 index 000000000000..bd3f68c9ddfc --- /dev/null +++ b/arch/arc/include/asm/fb.h @@ -0,0 +1,19 @@ +#ifndef _ASM_FB_H_ +#define _ASM_FB_H_ + +#include <linux/fb.h> +#include <linux/fs.h> +#include <asm/page.h> + +static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma, + unsigned long off) +{ + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); +} + +static inline int fb_is_primary_device(struct fb_info *info) +{ + return 0; +} + +#endif /* _ASM_FB_H_ */ diff --git a/arch/arc/include/asm/irqflags-arcv2.h b/arch/arc/include/asm/irqflags-arcv2.h index 37c2f751eebf..d1ec7f6b31e0 100644 --- a/arch/arc/include/asm/irqflags-arcv2.h +++ b/arch/arc/include/asm/irqflags-arcv2.h @@ -18,6 +18,12 @@ #define STATUS_AD_MASK (1<<STATUS_AD_BIT) #define STATUS_IE_MASK (1<<STATUS_IE_BIT) +/* status32 Bits as encoded/expected by CLRI/SETI */ +#define CLRI_STATUS_IE_BIT 4 + +#define CLRI_STATUS_E_MASK 0xF +#define CLRI_STATUS_IE_MASK (1 << CLRI_STATUS_IE_BIT) + #define AUX_USER_SP 0x00D #define AUX_IRQ_CTRL 0x00E #define AUX_IRQ_ACT 0x043 /* Active Intr across all levels */ @@ -100,6 +106,13 @@ static inline long arch_local_save_flags(void) : : "memory"); + /* To be compatible with irq_save()/irq_restore() + * encode the irq bits as expected by CLRI/SETI + * (this was needed to make CONFIG_TRACE_IRQFLAGS work) + */ + temp = (1 << 5) | + ((!!(temp & STATUS_IE_MASK)) << CLRI_STATUS_IE_BIT) | + (temp & CLRI_STATUS_E_MASK); return temp; } @@ -108,7 +121,7 @@ static inline long arch_local_save_flags(void) */ static inline int arch_irqs_disabled_flags(unsigned long flags) { - return !(flags & (STATUS_IE_MASK)); + return !(flags & CLRI_STATUS_IE_MASK); } static inline int arch_irqs_disabled(void) @@ -128,11 +141,32 @@ static inline void arc_softirq_clear(int irq) #else +#ifdef CONFIG_TRACE_IRQFLAGS + +.macro TRACE_ASM_IRQ_DISABLE + bl trace_hardirqs_off +.endm + +.macro TRACE_ASM_IRQ_ENABLE + bl trace_hardirqs_on +.endm + +#else + +.macro TRACE_ASM_IRQ_DISABLE +.endm + +.macro TRACE_ASM_IRQ_ENABLE +.endm + +#endif .macro IRQ_DISABLE scratch clri + TRACE_ASM_IRQ_DISABLE .endm .macro IRQ_ENABLE scratch + TRACE_ASM_IRQ_ENABLE seti .endm diff --git a/arch/arc/kernel/entry-arcv2.S b/arch/arc/kernel/entry-arcv2.S index c1264607bbff..7a1c124ff021 100644 --- a/arch/arc/kernel/entry-arcv2.S +++ b/arch/arc/kernel/entry-arcv2.S @@ -69,8 +69,11 @@ ENTRY(handle_interrupt) clri ; To make status32.IE agree with CPU internal state - lr r0, [ICAUSE] +#ifdef CONFIG_TRACE_IRQFLAGS + TRACE_ASM_IRQ_DISABLE +#endif + lr r0, [ICAUSE] mov blink, ret_from_exception b.d arch_do_IRQ @@ -169,6 +172,11 @@ END(EV_TLBProtV) .Lrestore_regs: + # Interrpts are actually disabled from this point on, but will get + # reenabled after we return from interrupt/exception. + # But irq tracer needs to be told now... + TRACE_ASM_IRQ_ENABLE + ld r0, [sp, PT_status32] ; U/K mode at time of entry lr r10, [AUX_IRQ_ACT] diff --git a/arch/arc/kernel/entry-compact.S b/arch/arc/kernel/entry-compact.S index 431433929189..0cb0abaa0479 100644 --- a/arch/arc/kernel/entry-compact.S +++ b/arch/arc/kernel/entry-compact.S @@ -341,6 +341,9 @@ END(call_do_page_fault) .Lrestore_regs: + # Interrpts are actually disabled from this point on, but will get + # reenabled after we return from interrupt/exception. + # But irq tracer needs to be told now... TRACE_ASM_IRQ_ENABLE lr r10, [status32] diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c index 7d2c4fbf4f22..5487d0b97400 100644 --- a/arch/arc/mm/init.c +++ b/arch/arc/mm/init.c @@ -13,6 +13,7 @@ #ifdef CONFIG_BLK_DEV_INITRD #include <linux/initrd.h> #endif +#include <linux/of_fdt.h> #include <linux/swap.h> #include <linux/module.h> #include <linux/highmem.h> @@ -136,6 +137,9 @@ void __init setup_arch_memory(void) memblock_reserve(__pa(initrd_start), initrd_end - initrd_start); #endif + early_init_fdt_reserve_self(); + early_init_fdt_scan_reserved_mem(); + memblock_dump_all(); /*----------------- node/zones setup --------------------------*/ |
