Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index 84bb1ed..3ece3c9 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -1,39 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-generic-y += barrier.h
-generic-y += bug.h
-generic-y += bugs.h
-generic-y += compat.h
-generic-y += current.h
-generic-y += device.h
-generic-y += div64.h
-generic-y += dma-mapping.h
-generic-y += emergency-restart.h
 generic-y += extable.h
-generic-y += fb.h
-generic-y += ftrace.h
-generic-y += hardirq.h
-generic-y += hw_irq.h
 generic-y += iomap.h
-generic-y += irq_regs.h
-generic-y += irq_work.h
-generic-y += kdebug.h
-generic-y += kmap_types.h
-generic-y += kprobes.h
 generic-y += kvm_para.h
-generic-y += local.h
-generic-y += local64.h
 generic-y += mcs_spinlock.h
-generic-y += mm-arch-hooks.h
-generic-y += mmiowb.h
-generic-y += pci.h
-generic-y += percpu.h
-generic-y += preempt.h
-generic-y += sections.h
-generic-y += serial.h
-generic-y += shmparam.h
-generic-y += topology.h
-generic-y += trace_clock.h
-generic-y += unaligned.h
-generic-y += vga.h
-generic-y += word-at-a-time.h
-generic-y += xor.h
diff --git a/arch/hexagon/include/asm/atomic.h b/arch/hexagon/include/asm/atomic.h
index 0231d69..4ab895d 100644
--- a/arch/hexagon/include/asm/atomic.h
+++ b/arch/hexagon/include/asm/atomic.h
@@ -12,8 +12,6 @@
 #include <asm/cmpxchg.h>
 #include <asm/barrier.h>
 
-#define ATOMIC_INIT(i)		{ (i) }
-
 /*  Normal writes in our arch don't clear lock reservations  */
 
 static inline void atomic_set(atomic_t *v, int new)
diff --git a/arch/hexagon/include/asm/cacheflush.h b/arch/hexagon/include/asm/cacheflush.h
index fb447de..6eff073 100644
--- a/arch/hexagon/include/asm/cacheflush.h
+++ b/arch/hexagon/include/asm/cacheflush.h
@@ -25,29 +25,17 @@
 #define LINESIZE	32
 #define LINEBITS	5
 
-#define flush_cache_all()			do { } while (0)
-#define flush_cache_mm(mm)			do { } while (0)
-#define flush_cache_dup_mm(mm)			do { } while (0)
-#define flush_cache_range(vma, start, end)	do { } while (0)
-#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
-#define flush_dcache_page(page)			do { } while (0)
-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
-#define flush_icache_page(vma, pg)		do { } while (0)
-#define flush_icache_user_range(vma, pg, adr, len)	do { } while (0)
-#define flush_cache_vmap(start, end)		do { } while (0)
-#define flush_cache_vunmap(start, end)		do { } while (0)
-
 /*
  * Flush Dcache range through current map.
  */
 extern void flush_dcache_range(unsigned long start, unsigned long end);
+#define flush_dcache_range flush_dcache_range
 
 /*
  * Flush Icache range through current map.
  */
 extern void flush_icache_range(unsigned long start, unsigned long end);
+#define flush_icache_range flush_icache_range
 
 /*
  * Memory-management related flushes are there to ensure in non-physically
@@ -78,6 +66,7 @@
 
 void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
 		       unsigned long vaddr, void *dst, void *src, int len);
+#define copy_to_user_page copy_to_user_page
 
 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
 	memcpy(dst, src, len)
@@ -85,4 +74,6 @@
 extern void hexagon_inv_dcache_range(unsigned long start, unsigned long end);
 extern void hexagon_clean_dcache_range(unsigned long start, unsigned long end);
 
+#include <asm-generic/cacheflush.h>
+
 #endif
diff --git a/arch/hexagon/include/asm/checksum.h b/arch/hexagon/include/asm/checksum.h
index a5c42f4..4bc6ad9 100644
--- a/arch/hexagon/include/asm/checksum.h
+++ b/arch/hexagon/include/asm/checksum.h
@@ -10,17 +10,6 @@
 unsigned int do_csum(const void *voidptr, int len);
 
 /*
- * the same as csum_partial, but copies from src while it
- * checksums
- *
- * here even more important to align src and dst on a 32-bit (or even
- * better 64-bit) boundary
- */
-#define csum_partial_copy_nocheck csum_partial_copy_nocheck
-__wsum csum_partial_copy_nocheck(const void *src, void *dst,
-					int len, __wsum sum);
-
-/*
  * computes the checksum of the TCP/UDP pseudo-header
  * returns a 16-bit checksum, already complemented
  */
diff --git a/arch/hexagon/include/asm/fixmap.h b/arch/hexagon/include/asm/fixmap.h
index 933dac1..920660a 100644
--- a/arch/hexagon/include/asm/fixmap.h
+++ b/arch/hexagon/include/asm/fixmap.h
@@ -15,8 +15,4 @@
 
 #include <asm-generic/fixmap.h>
 
-#define kmap_get_fixmap_pte(vaddr) \
-	pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), \
-				(vaddr)), (vaddr)), (vaddr))
-
 #endif
diff --git a/arch/hexagon/include/asm/futex.h b/arch/hexagon/include/asm/futex.h
index 0191f7c..9fb00a0 100644
--- a/arch/hexagon/include/asm/futex.h
+++ b/arch/hexagon/include/asm/futex.h
@@ -21,7 +21,7 @@
 	"3:\n" \
 	".section .fixup,\"ax\"\n" \
 	"4: %1 = #%5;\n" \
-	"   jump 3b\n" \
+	"   jump ##3b\n" \
 	".previous\n" \
 	".section __ex_table,\"a\"\n" \
 	".long 1b,4b,2b,4b\n" \
@@ -36,7 +36,8 @@
 {
 	int oldval = 0, ret;
 
-	pagefault_disable();
+	if (!access_ok(uaddr, sizeof(u32)))
+		return -EFAULT;
 
 	switch (op) {
 	case FUTEX_OP_SET:
@@ -62,8 +63,6 @@
 		ret = -ENOSYS;
 	}
 
-	pagefault_enable();
-
 	if (!ret)
 		*oval = oldval;
 
@@ -91,7 +90,7 @@
 	"3:\n"
 	".section .fixup,\"ax\"\n"
 	"4: %0 = #%6\n"
-	"   jump 3b\n"
+	"   jump ##3b\n"
 	".previous\n"
 	".section __ex_table,\"a\"\n"
 	".long 1b,4b,2b,4b\n"
diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h
index 68a6814..bda2a9c 100644
--- a/arch/hexagon/include/asm/io.h
+++ b/arch/hexagon/include/asm/io.h
@@ -27,7 +27,7 @@
 extern int remap_area_pages(unsigned long start, unsigned long phys_addr,
 				unsigned long end, unsigned long flags);
 
-extern void __iounmap(const volatile void __iomem *addr);
+extern void iounmap(const volatile void __iomem *addr);
 
 /* Defined in lib/io.c, needed for smc91x driver. */
 extern void __raw_readsw(const void __iomem *addr, void *data, int wordlen);
@@ -172,15 +172,9 @@
 #define writel_relaxed __raw_writel
 
 void __iomem *ioremap(unsigned long phys_addr, unsigned long size);
-#define ioremap_nocache ioremap
 #define ioremap_uc(X, Y) ioremap((X), (Y))
 
 
-static inline void iounmap(volatile void __iomem *addr)
-{
-	__iounmap(addr);
-}
-
 #define __raw_writel writel
 
 static inline void memcpy_fromio(void *dst, const volatile void __iomem *src,
diff --git a/arch/hexagon/include/asm/page.h b/arch/hexagon/include/asm/page.h
index ee31f36..7cbf719 100644
--- a/arch/hexagon/include/asm/page.h
+++ b/arch/hexagon/include/asm/page.h
@@ -93,8 +93,7 @@
 #define virt_to_page(kaddr) pfn_to_page(PFN_DOWN(__pa(kaddr)))
 
 /* Default vm area behavior is non-executable.  */
-#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | \
-				VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+#define VM_DATA_DEFAULT_FLAGS	VM_DATA_FLAGS_NON_EXEC
 
 #define pfn_valid(pfn) ((pfn) < max_mapnr)
 #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h
index cc9be51..f0c47e6 100644
--- a/arch/hexagon/include/asm/pgalloc.h
+++ b/arch/hexagon/include/asm/pgalloc.h
@@ -11,7 +11,7 @@
 #include <asm/mem-layout.h>
 #include <asm/atomic.h>
 
-#include <asm-generic/pgalloc.h>	/* for pte_{alloc,free}_one */
+#include <asm-generic/pgalloc.h>
 
 extern unsigned long long kmap_generation;
 
@@ -41,11 +41,6 @@
 	return pgd;
 }
 
-static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
-{
-	free_page((unsigned long) pgd);
-}
-
 static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
 				pgtable_t pte)
 {
diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h
index 2fec20a..dbb22b8 100644
--- a/arch/hexagon/include/asm/pgtable.h
+++ b/arch/hexagon/include/asm/pgtable.h
@@ -12,7 +12,6 @@
  * Page table definitions for Qualcomm Hexagon processor.
  */
 #include <asm/page.h>
-#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 
 /* A handy thing to have if one has the RAM. Declared in head.S */
@@ -158,8 +157,6 @@
 
 /* Seems to be zero even in architectures where the zero page is firewalled? */
 #define FIRST_USER_ADDRESS 0UL
-#define pte_special(pte)	0
-#define pte_mkspecial(pte)	(pte)
 
 /*  HUGETLB not working currently  */
 #ifdef CONFIG_HUGETLB_PAGE
@@ -209,33 +206,6 @@
 	pte_val(*ptep) = _NULL_PTE;
 }
 
-#ifdef NEED_PMD_INDEX_DESPITE_BEING_2_LEVEL
-/**
- * pmd_index - returns the index of the entry in the PMD page
- * which would control the given virtual address
- */
-#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
-
-#endif
-
-/**
- * pgd_index - returns the index of the entry in the PGD page
- * which would control the given virtual address
- *
- * This returns the *index* for the address in the pgd_t
- */
-#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
-
-/*
- * pgd_offset - find an offset in a page-table-directory
- */
-#define pgd_offset(mm, addr) ((mm)->pgd + pgd_index(addr))
-
-/*
- * pgd_offset_k - get kernel (init_mm) pgd entry pointer for addr
- */
-#define pgd_offset_k(address) pgd_offset(&init_mm, address)
-
 /**
  * pmd_none - check if pmd_entry is mapped
  * @pmd_entry:  pmd entry
@@ -406,31 +376,14 @@
  */
 #define set_pte_at(mm, addr, ptep, pte) set_pte(ptep, pte)
 
-/*
- * May need to invoke the virtual machine as well...
- */
-#define pte_unmap(pte)		do { } while (0)
-#define pte_unmap_nested(pte)	do { } while (0)
-
-/*
- * pte_offset_map - returns the linear address of the page table entry
- * corresponding to an address
- */
-#define pte_offset_map(dir, address)                                    \
-	((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
-
-#define pte_offset_map_nested(pmd, addr) pte_offset_map(pmd, addr)
-
-/* pte_offset_kernel - kernel version of pte_offset */
-#define pte_offset_kernel(dir, address) \
-	((pte_t *) (unsigned long) __va(pmd_val(*dir) & PAGE_MASK) \
-				+  __pte_offset(address))
+static inline unsigned long pmd_page_vaddr(pmd_t pmd)
+{
+	return (unsigned long)__va(pmd_val(pmd) & PAGE_MASK);
+}
 
 /* ZERO_PAGE - returns the globally shared zero page */
 #define ZERO_PAGE(vaddr) (virt_to_page(&empty_zero_page))
 
-#define __pte_offset(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
-
 /*
  * Swap/file PTE definitions.  If _PAGE_PRESENT is zero, the rest of the PTE is
  * interpreted as swap information.  The remaining free bits are interpreted as
@@ -463,7 +416,4 @@
 		((type << 1) | \
 		 ((offset & 0x7ffff0) << 9) | ((offset & 0xf) << 6)) })
 
-/*  Oh boy.  There are a lot of possible arch overrides found in this file.  */
-#include <asm-generic/pgtable.h>
-
 #endif
diff --git a/arch/hexagon/include/asm/timer-regs.h b/arch/hexagon/include/asm/timer-regs.h
deleted file mode 100644
index ee6c614..0000000
--- a/arch/hexagon/include/asm/timer-regs.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Timer support for Hexagon
- *
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
- */
-
-#ifndef _ASM_TIMER_REGS_H
-#define _ASM_TIMER_REGS_H
-
-/*  This stuff should go into a platform specific file  */
-#define TCX0_CLK_RATE		19200
-#define TIMER_ENABLE		0
-#define TIMER_CLR_ON_MATCH	1
-
-/*
- * 8x50 HDD Specs 5-8.  Simulator co-sim not fixed until
- * release 1.1, and then it's "adjustable" and probably not defaulted.
- */
-#define RTOS_TIMER_INT		3
-#ifdef CONFIG_HEXAGON_COMET
-#define RTOS_TIMER_REGS_ADDR	0xAB000000UL
-#endif
-#define SLEEP_CLK_RATE		32000
-
-#endif
diff --git a/arch/hexagon/include/asm/timex.h b/arch/hexagon/include/asm/timex.h
index 78338d8..dfe69e1 100644
--- a/arch/hexagon/include/asm/timex.h
+++ b/arch/hexagon/include/asm/timex.h
@@ -7,16 +7,16 @@
 #define _ASM_TIMEX_H
 
 #include <asm-generic/timex.h>
-#include <asm/timer-regs.h>
+#include <asm/hexagon_vm.h>
 
 /* Using TCX0 as our clock.  CLOCK_TICK_RATE scheduled to be removed. */
-#define CLOCK_TICK_RATE              TCX0_CLK_RATE
+#define CLOCK_TICK_RATE              19200
 
 #define ARCH_HAS_READ_CURRENT_TIMER
 
 static inline int read_current_timer(unsigned long *timer_val)
 {
-	*timer_val = (unsigned long) __vmgettime();
+	*timer_val = __vmgettime();
 	return 0;
 }
 
diff --git a/arch/hexagon/include/asm/uaccess.h b/arch/hexagon/include/asm/uaccess.h
index 00cb38f..c1019a7 100644
--- a/arch/hexagon/include/asm/uaccess.h
+++ b/arch/hexagon/include/asm/uaccess.h
@@ -10,7 +10,6 @@
 /*
  * User space memory access functions
  */
-#include <linux/mm.h>
 #include <asm/sections.h>
 
 /*
diff --git a/arch/hexagon/include/asm/module.h b/arch/hexagon/include/asm/vermagic.h
similarity index 64%
rename from arch/hexagon/include/asm/module.h
rename to arch/hexagon/include/asm/vermagic.h
index e8de4fe..0e8dedc 100644
--- a/arch/hexagon/include/asm/module.h
+++ b/arch/hexagon/include/asm/vermagic.h
@@ -3,11 +3,11 @@
  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
  */
 
-#ifndef _ASM_MODULE_H
-#define _ASM_MODULE_H
+#ifndef _ASM_VERMAGIC_H
+#define _ASM_VERMAGIC_H
 
-#include <asm-generic/module.h>
+#include <linux/stringify.h>
 
 #define MODULE_ARCH_VERMAGIC __stringify(PROCESSOR_MODEL_NAME) " "
 
-#endif
+#endif /* _ASM_VERMAGIC_H */
diff --git a/arch/hexagon/include/asm/vmalloc.h b/arch/hexagon/include/asm/vmalloc.h
new file mode 100644
index 0000000..7b04609
--- /dev/null
+++ b/arch/hexagon/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_HEXAGON_VMALLOC_H
+#define _ASM_HEXAGON_VMALLOC_H
+
+#endif /* _ASM_HEXAGON_VMALLOC_H */
diff --git a/arch/hexagon/include/uapi/asm/bitsperlong.h b/arch/hexagon/include/uapi/asm/bitsperlong.h
deleted file mode 100644
index 5adca0d..0000000
--- a/arch/hexagon/include/uapi/asm/bitsperlong.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/*
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- */
-
-#ifndef __ASM_HEXAGON_BITSPERLONG_H
-#define __ASM_HEXAGON_BITSPERLONG_H
-
-#define __BITS_PER_LONG 32
-
-#include <asm-generic/bitsperlong.h>
-
-#endif