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authorLinus Torvalds <torvalds@linux-foundation.org>2019-11-27 22:30:55 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-11-27 22:30:55 +0300
commit477093b3e144aa0ece07a5fd2a84013d037e2776 (patch)
tree3f3afb258a791a79b7cd1d46194bf0beb58c5619 /arch
parent6a0e20cd8cddd70ae5c1211ebe102d738ff2069b (diff)
parent22648c989cb8305f51b96b5962df8674697bb2ab (diff)
downloadlinux-477093b3e144aa0ece07a5fd2a84013d037e2776.tar.xz
Merge tag 'microblaze-v5.5-rc1' of git://git.monstr.eu/linux-2.6-microblaze
Pull Microblaze updates from Michal Simek: - extend DTB space - defconfig update - clean up rescheduling logic - enable SPARSE_IRQ * tag 'microblaze-v5.5-rc1' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Increase max dtb size to 64K from 32K microblaze: Enable SPARSE_IRQ microblaze: defconfig: Enable devtmps and tmpfs microblaze: entry: Remove unneeded need_resched() loop
Diffstat (limited to 'arch')
-rw-r--r--arch/microblaze/Kconfig1
-rw-r--r--arch/microblaze/configs/mmu_defconfig3
-rw-r--r--arch/microblaze/include/asm/irq.h1
-rw-r--r--arch/microblaze/kernel/entry.S5
-rw-r--r--arch/microblaze/kernel/head.S2
-rw-r--r--arch/microblaze/kernel/vmlinux.lds.S2
6 files changed, 6 insertions, 8 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index c9c4be822456..a75896f18e58 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -46,6 +46,7 @@ config MICROBLAZE
select VIRT_TO_BUS
select CPU_NO_EFFICIENT_FFS
select MMU_GATHER_NO_RANGE if MMU
+ select SPARSE_IRQ
# Endianness selection
choice
diff --git a/arch/microblaze/configs/mmu_defconfig b/arch/microblaze/configs/mmu_defconfig
index 654edfdc7867..b3b433db89d8 100644
--- a/arch/microblaze/configs/mmu_defconfig
+++ b/arch/microblaze/configs/mmu_defconfig
@@ -33,6 +33,8 @@ CONFIG_INET=y
# CONFIG_IPV6 is not set
CONFIG_BRIDGE=m
CONFIG_PCI=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
CONFIG_MTD=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
@@ -73,6 +75,7 @@ CONFIG_UIO_PDRV_GENIRQ=y
CONFIG_UIO_DMEM_GENIRQ=y
CONFIG_EXT2_FS=y
# CONFIG_DNOTIFY is not set
+CONFIG_TMPFS=y
CONFIG_CRAMFS=y
CONFIG_ROMFS_FS=y
CONFIG_NFS_FS=y
diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h
index d785defeeed5..eac2fb4b3fb9 100644
--- a/arch/microblaze/include/asm/irq.h
+++ b/arch/microblaze/include/asm/irq.h
@@ -9,7 +9,6 @@
#ifndef _ASM_MICROBLAZE_IRQ_H
#define _ASM_MICROBLAZE_IRQ_H
-#define NR_IRQS (32 + 1)
#include <asm-generic/irq.h>
struct pt_regs;
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index 4e1b567becd6..de7083bd1d24 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -738,14 +738,9 @@ no_intr_resched:
andi r5, r5, _TIF_NEED_RESCHED;
beqi r5, restore /* if zero jump over */
-preempt:
/* interrupts are off that's why I am calling preempt_chedule_irq */
bralid r15, preempt_schedule_irq
nop
- lwi r11, CURRENT_TASK, TS_THREAD_INFO; /* get thread info */
- lwi r5, r11, TI_FLAGS; /* get flags in thread info */
- andi r5, r5, _TIF_NEED_RESCHED;
- bnei r5, preempt /* if non zero jump to resched */
restore:
#endif
VM_OFF /* MS: turn off MMU */
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
index f264fdcf152a..7d2894418691 100644
--- a/arch/microblaze/kernel/head.S
+++ b/arch/microblaze/kernel/head.S
@@ -99,7 +99,7 @@ big_endian:
_prepare_copy_fdt:
or r11, r0, r0 /* incremment */
ori r4, r0, TOPHYS(_fdt_start)
- ori r3, r0, (0x8000 - 4)
+ ori r3, r0, (0x10000 - 4)
_copy_fdt:
lw r12, r7, r11 /* r12 = r7 + r11 */
sw r12, r4, r11 /* addr[r4 + r11] = r12 */
diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S
index 760cac41cbfe..2c09fa3a8a01 100644
--- a/arch/microblaze/kernel/vmlinux.lds.S
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -48,7 +48,7 @@ SECTIONS {
__fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) {
_fdt_start = . ; /* place for fdt blob */
*(__fdt_blob) ; /* Any link-placed DTB */
- . = _fdt_start + 0x8000; /* Pad up to 32kbyte */
+ . = _fdt_start + 0x10000; /* Pad up to 64kbyte */
_fdt_end = . ;
}