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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:22 +0000
commitb20732900e4636a467c0183a47f7396700f5f743 (patch)
tree42f079ff82e701ebcb76829974b4caca3e5b6798 /arch/nios2
parentAdding upstream version 6.8.12. (diff)
downloadlinux-b20732900e4636a467c0183a47f7396700f5f743.tar.xz
linux-b20732900e4636a467c0183a47f7396700f5f743.zip
Adding upstream version 6.9.7.upstream/6.9.7
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/nios2')
-rw-r--r--arch/nios2/Kconfig2
-rw-r--r--arch/nios2/include/asm/cachetype.h10
-rw-r--r--arch/nios2/include/asm/page.h2
-rw-r--r--arch/nios2/include/asm/pgtable.h2
-rw-r--r--arch/nios2/kernel/prom.c6
5 files changed, 20 insertions, 2 deletions
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index 58d9565dc2..9c0e6eaeb0 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -2,6 +2,7 @@
config NIOS2
def_bool y
select ARCH_32BIT_OFF_T
+ select ARCH_HAS_CPU_CACHE_ALIASING
select ARCH_HAS_DMA_PREP_COHERENT
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
@@ -15,6 +16,7 @@ config NIOS2
select GENERIC_IRQ_SHOW
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_KGDB
+ select HAVE_PAGE_SIZE_4KB
select IRQ_DOMAIN
select LOCK_MM_AND_FIND_VMA
select MODULES_USE_ELF_RELA
diff --git a/arch/nios2/include/asm/cachetype.h b/arch/nios2/include/asm/cachetype.h
new file mode 100644
index 0000000000..eb9c416b8a
--- /dev/null
+++ b/arch/nios2/include/asm/cachetype.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_NIOS2_CACHETYPE_H
+#define __ASM_NIOS2_CACHETYPE_H
+
+#include <asm/page.h>
+#include <asm/cache.h>
+
+#define cpu_dcache_is_aliasing() (NIOS2_DCACHE_SIZE > PAGE_SIZE)
+
+#endif
diff --git a/arch/nios2/include/asm/page.h b/arch/nios2/include/asm/page.h
index 0ae7d9ce36..0722f88e63 100644
--- a/arch/nios2/include/asm/page.h
+++ b/arch/nios2/include/asm/page.h
@@ -21,7 +21,7 @@
/*
* PAGE_SHIFT determines the page size
*/
-#define PAGE_SHIFT 12
+#define PAGE_SHIFT CONFIG_PAGE_SHIFT
#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE - 1))
diff --git a/arch/nios2/include/asm/pgtable.h b/arch/nios2/include/asm/pgtable.h
index 5144506dfa..d052dfcbe8 100644
--- a/arch/nios2/include/asm/pgtable.h
+++ b/arch/nios2/include/asm/pgtable.h
@@ -178,6 +178,8 @@ static inline void set_pte(pte_t *ptep, pte_t pteval)
*ptep = pteval;
}
+#define PFN_PTE_SHIFT 0
+
static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte, unsigned int nr)
{
diff --git a/arch/nios2/kernel/prom.c b/arch/nios2/kernel/prom.c
index 8d98af5c72..9a8393e6b4 100644
--- a/arch/nios2/kernel/prom.c
+++ b/arch/nios2/kernel/prom.c
@@ -21,7 +21,8 @@
void __init early_init_devtree(void *params)
{
- __be32 *dtb = (u32 *)__dtb_start;
+ __be32 __maybe_unused *dtb = (u32 *)__dtb_start;
+
#if defined(CONFIG_NIOS2_DTB_AT_PHYS_ADDR)
if (be32_to_cpup((__be32 *)CONFIG_NIOS2_DTB_PHYS_ADDR) ==
OF_DT_HEADER) {
@@ -30,8 +31,11 @@ void __init early_init_devtree(void *params)
return;
}
#endif
+
+#ifdef CONFIG_NIOS2_DTB_SOURCE_BOOL
if (be32_to_cpu((__be32) *dtb) == OF_DT_HEADER)
params = (void *)__dtb_start;
+#endif
early_init_dt_scan(params);
}