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Ingo Molnar
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Merge branch 'sched/urgent' into sched/core, to pick up pending v6.7 fixes for the v6.8 merge window
This fix didn't make it upstream in time, pick it up for the v6.8 merge window. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2 parents fbb66ce + f60a631 commit cdb3033

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‎.mailmap

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@@ -191,6 +191,10 @@ Gao Xiang <xiang@kernel.org> <gaoxiang25@huawei.com>
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Gao Xiang <xiang@kernel.org> <hsiangkao@aol.com>
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Gao Xiang <xiang@kernel.org> <hsiangkao@linux.alibaba.com>
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Gao Xiang <xiang@kernel.org> <hsiangkao@redhat.com>
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Geliang Tang <geliang.tang@linux.dev> <geliang.tang@suse.com>
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Geliang Tang <geliang.tang@linux.dev> <geliangtang@xiaomi.com>
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Geliang Tang <geliang.tang@linux.dev> <geliangtang@gmail.com>
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Geliang Tang <geliang.tang@linux.dev> <geliangtang@163.com>
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Georgi Djakov <djakov@kernel.org> <georgi.djakov@linaro.org>
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Gerald Schaefer <gerald.schaefer@linux.ibm.com> <geraldsc@de.ibm.com>
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Gerald Schaefer <gerald.schaefer@linux.ibm.com> <gerald.schaefer@de.ibm.com>

‎MAINTAINERS

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@@ -6050,10 +6050,8 @@ M: Mikulas Patocka <mpatocka@redhat.com>
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M: dm-devel@lists.linux.dev
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L: dm-devel@lists.linux.dev
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S: Maintained
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W: http://sources.redhat.com/dm
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Q: http://patchwork.kernel.org/project/dm-devel/list/
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T: git git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git
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T: quilt http://people.redhat.com/agk/patches/linux/editing/
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F: Documentation/admin-guide/device-mapper/
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F: drivers/md/Kconfig
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F: drivers/md/Makefile
@@ -9526,6 +9524,7 @@ F: drivers/bus/hisi_lpc.c
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HISILICON NETWORK SUBSYSTEM 3 DRIVER (HNS3)
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M: Yisen Zhuang <yisen.zhuang@huawei.com>
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M: Salil Mehta <salil.mehta@huawei.com>
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M: Jijie Shao <shaojijie@huawei.com>
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L: netdev@vger.kernel.org
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S: Maintained
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W: http://www.hisilicon.com

‎arch/arc/Kconfig

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@@ -49,7 +49,6 @@ config ARC
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select OF
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select OF_EARLY_FLATTREE
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select PCI_SYSCALL if PCI
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select PERF_USE_VMALLOC if ARC_CACHE_VIPT_ALIASING
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select HAVE_ARCH_JUMP_LABEL if ISA_ARCV2 && !CPU_ENDIAN_BE32
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select TRACE_IRQFLAGS_SUPPORT
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@@ -232,10 +231,6 @@ config ARC_CACHE_PAGES
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Note that Global I/D ENABLE + Per Page DISABLE works but corollary
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Global DISABLE + Per Page ENABLE won't work
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235-
config ARC_CACHE_VIPT_ALIASING
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bool "Support VIPT Aliasing D$"
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depends on ARC_HAS_DCACHE && ISA_ARCOMPACT
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endif #ARC_CACHE
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config ARC_HAS_ICCM

‎arch/arc/include/asm/cacheflush.h

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@@ -44,60 +44,17 @@ void dma_cache_wback(phys_addr_t start, unsigned long sz);
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#define flush_cache_dup_mm(mm) /* called on fork (VIVT only) */
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47-
#ifndef CONFIG_ARC_CACHE_VIPT_ALIASING
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#define flush_cache_mm(mm) /* called on munmap/exit */
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#define flush_cache_range(mm, u_vstart, u_vend)
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#define flush_cache_page(vma, u_vaddr, pfn) /* PF handling/COW-break */
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#else /* VIPT aliasing dcache */
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/* To clear out stale userspace mappings */
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void flush_cache_mm(struct mm_struct *mm);
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void flush_cache_range(struct vm_area_struct *vma,
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unsigned long start,unsigned long end);
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void flush_cache_page(struct vm_area_struct *vma,
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unsigned long user_addr, unsigned long page);
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/*
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* To make sure that userspace mapping is flushed to memory before
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* get_user_pages() uses a kernel mapping to access the page
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*/
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#define ARCH_HAS_FLUSH_ANON_PAGE
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void flush_anon_page(struct vm_area_struct *vma,
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struct page *page, unsigned long u_vaddr);
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70-
#endif /* CONFIG_ARC_CACHE_VIPT_ALIASING */
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/*
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* A new pagecache page has PG_arch_1 clear - thus dcache dirty by default
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* This works around some PIO based drivers which don't call flush_dcache_page
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* to record that they dirtied the dcache
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*/
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#define PG_dc_clean PG_arch_1
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#define CACHE_COLORS_NUM 4
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#define CACHE_COLORS_MSK (CACHE_COLORS_NUM - 1)
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#define CACHE_COLOR(addr) (((unsigned long)(addr) >> (PAGE_SHIFT)) & CACHE_COLORS_MSK)
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/*
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* Simple wrapper over config option
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* Bootup code ensures that hardware matches kernel configuration
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*/
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static inline int cache_is_vipt_aliasing(void)
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{
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return IS_ENABLED(CONFIG_ARC_CACHE_VIPT_ALIASING);
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}
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/*
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* checks if two addresses (after page aligning) index into same cache set
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*/
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#define addr_not_cache_congruent(addr1, addr2) \
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({ \
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cache_is_vipt_aliasing() ? \
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(CACHE_COLOR(addr1) != CACHE_COLOR(addr2)) : 0; \
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})
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#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
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do { \
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memcpy(dst, src, len); \

‎arch/arc/include/asm/entry-arcv2.h

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@@ -291,4 +291,36 @@
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/* M = 8-1 N = 8 */
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.endm
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.macro SAVE_ABI_CALLEE_REGS
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push r13
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push r14
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push r15
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push r16
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push r17
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push r18
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push r19
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push r20
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push r21
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push r22
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push r23
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push r24
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push r25
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.endm
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.macro RESTORE_ABI_CALLEE_REGS
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pop r25
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pop r24
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pop r23
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pop r22
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pop r21
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pop r20
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pop r19
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pop r18
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pop r17
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pop r16
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pop r15
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pop r14
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pop r13
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.endm
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#endif

‎arch/arc/include/asm/entry-compact.h

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@@ -33,6 +33,91 @@
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#include <asm/irqflags-compact.h>
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#include <asm/thread_info.h> /* For THREAD_SIZE */
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/* Note on the LD/ST addr modes with addr reg wback
37+
*
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* LD.a same as LD.aw
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*
40+
* LD.a reg1, [reg2, x] => Pre Incr
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* Eff Addr for load = [reg2 + x]
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*
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* LD.ab reg1, [reg2, x] => Post Incr
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* Eff Addr for load = [reg2]
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*/
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.macro PUSHAX aux
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lr r9, [\aux]
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push r9
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.endm
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.macro POPAX aux
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pop r9
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sr r9, [\aux]
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.endm
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.macro SAVE_R0_TO_R12
58+
push r0
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push r1
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push r2
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push r3
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push r4
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push r5
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push r6
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push r7
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push r8
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push r9
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push r10
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push r11
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push r12
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.endm
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.macro RESTORE_R12_TO_R0
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pop r12
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pop r11
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pop r10
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pop r9
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pop r8
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pop r7
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pop r6
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pop r5
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pop r4
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pop r3
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pop r2
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pop r1
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pop r0
87+
.endm
88+
89+
.macro SAVE_ABI_CALLEE_REGS
90+
push r13
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push r14
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push r15
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push r16
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push r17
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push r18
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push r19
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push r20
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push r21
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push r22
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push r23
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push r24
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push r25
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.endm
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105+
.macro RESTORE_ABI_CALLEE_REGS
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pop r25
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pop r24
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pop r23
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pop r22
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pop r21
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pop r20
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pop r19
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pop r18
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pop r17
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pop r16
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pop r15
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pop r14
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pop r13
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.endm
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36121
/*--------------------------------------------------------------
37122
* Switch to Kernel Mode stack if SP points to User Mode stack
38123
*
@@ -235,7 +320,7 @@
235320
SWITCH_TO_KERNEL_STK
236321

237322

238-
PUSH 0x003\LVL\()abcd /* Dummy ECR */
323+
st.a 0x003\LVL\()abcd, [sp, -4] /* Dummy ECR */
239324
sub sp, sp, 8 /* skip orig_r0 (not needed)
240325
skip pt_regs->sp, already saved above */
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‎arch/arc/include/asm/entry.h

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@@ -21,133 +21,31 @@
2121
#include <asm/entry-arcv2.h>
2222
#endif
2323

24-
/* Note on the LD/ST addr modes with addr reg wback
25-
*
26-
* LD.a same as LD.aw
27-
*
28-
* LD.a reg1, [reg2, x] => Pre Incr
29-
* Eff Addr for load = [reg2 + x]
30-
*
31-
* LD.ab reg1, [reg2, x] => Post Incr
32-
* Eff Addr for load = [reg2]
33-
*/
34-
35-
.macro PUSH reg
36-
st.a \reg, [sp, -4]
37-
.endm
38-
39-
.macro PUSHAX aux
40-
lr r9, [\aux]
41-
PUSH r9
42-
.endm
43-
44-
.macro POP reg
45-
ld.ab \reg, [sp, 4]
46-
.endm
47-
48-
.macro POPAX aux
49-
POP r9
50-
sr r9, [\aux]
51-
.endm
52-
53-
/*--------------------------------------------------------------
54-
* Helpers to save/restore Scratch Regs:
55-
* used by Interrupt/Exception Prologue/Epilogue
56-
*-------------------------------------------------------------*/
57-
.macro SAVE_R0_TO_R12
58-
PUSH r0
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PUSH r1
60-
PUSH r2
61-
PUSH r3
62-
PUSH r4
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PUSH r5
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PUSH r6
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PUSH r7
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PUSH r8
67-
PUSH r9
68-
PUSH r10
69-
PUSH r11
70-
PUSH r12
71-
.endm
72-
73-
.macro RESTORE_R12_TO_R0
74-
POP r12
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POP r11
76-
POP r10
77-
POP r9
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POP r8
79-
POP r7
80-
POP r6
81-
POP r5
82-
POP r4
83-
POP r3
84-
POP r2
85-
POP r1
86-
POP r0
87-
88-
.endm
89-
90-
/*--------------------------------------------------------------
91-
* Helpers to save/restore callee-saved regs:
92-
* used by several macros below
93-
*-------------------------------------------------------------*/
94-
.macro SAVE_R13_TO_R25
95-
PUSH r13
96-
PUSH r14
97-
PUSH r15
98-
PUSH r16
99-
PUSH r17
100-
PUSH r18
101-
PUSH r19
102-
PUSH r20
103-
PUSH r21
104-
PUSH r22
105-
PUSH r23
106-
PUSH r24
107-
PUSH r25
108-
.endm
109-
110-
.macro RESTORE_R25_TO_R13
111-
POP r25
112-
POP r24
113-
POP r23
114-
POP r22
115-
POP r21
116-
POP r20
117-
POP r19
118-
POP r18
119-
POP r17
120-
POP r16
121-
POP r15
122-
POP r14
123-
POP r13
124-
.endm
125-
12624
/*
12725
* save user mode callee regs as struct callee_regs
12826
* - needed by fork/do_signal/unaligned-access-emulation.
12927
*/
13028
.macro SAVE_CALLEE_SAVED_USER
131-
SAVE_R13_TO_R25
29+
SAVE_ABI_CALLEE_REGS
13230
.endm
13331

13432
/*
13533
* restore user mode callee regs as struct callee_regs
13634
* - could have been changed by ptrace tracer or unaligned-access fixup
13735
*/
13836
.macro RESTORE_CALLEE_SAVED_USER
139-
RESTORE_R25_TO_R13
37+
RESTORE_ABI_CALLEE_REGS
14038
.endm
14139

14240
/*
14341
* save/restore kernel mode callee regs at the time of context switch
14442
*/
14543
.macro SAVE_CALLEE_SAVED_KERNEL
146-
SAVE_R13_TO_R25
44+
SAVE_ABI_CALLEE_REGS
14745
.endm
14846

14947
.macro RESTORE_CALLEE_SAVED_KERNEL
150-
RESTORE_R25_TO_R13
48+
RESTORE_ABI_CALLEE_REGS
15149
.endm
15250

15351
/*--------------------------------------------------------------

‎arch/arc/include/asm/hugepage.h

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Original file line numberDiff line numberDiff line change
@@ -10,6 +10,13 @@
1010
#include <linux/types.h>
1111
#include <asm-generic/pgtable-nopmd.h>
1212

13+
/*
14+
* Hugetlb definitions.
15+
*/
16+
#define HPAGE_SHIFT PMD_SHIFT
17+
#define HPAGE_SIZE (_AC(1, UL) << HPAGE_SHIFT)
18+
#define HPAGE_MASK (~(HPAGE_SIZE - 1))
19+
1320
static inline pte_t pmd_pte(pmd_t pmd)
1421
{
1522
return __pte(pmd_val(pmd));

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