From 748e4f3d702def1a4bff191e0cf93b6a05340f01 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:41:34 +0000
Subject: [PATCH] add gpio led uart
---
kernel/arch/arc/include/asm/highmem.h | 26 ++++++--------------------
1 files changed, 6 insertions(+), 20 deletions(-)
diff --git a/kernel/arch/arc/include/asm/highmem.h b/kernel/arch/arc/include/asm/highmem.h
index a6b8e2c..6e5eafb 100644
--- a/kernel/arch/arc/include/asm/highmem.h
+++ b/kernel/arch/arc/include/asm/highmem.h
@@ -9,29 +9,17 @@
#ifdef CONFIG_HIGHMEM
#include <uapi/asm/page.h>
-#include <asm/kmap_size.h>
-
-#define FIXMAP_SIZE PGDIR_SIZE
-#define PKMAP_SIZE PGDIR_SIZE
+#include <asm/kmap_types.h>
/* start after vmalloc area */
#define FIXMAP_BASE (PAGE_OFFSET - FIXMAP_SIZE - PKMAP_SIZE)
-
-#define FIX_KMAP_SLOTS (KM_MAX_IDX * NR_CPUS)
-#define FIX_KMAP_BEGIN (0UL)
-#define FIX_KMAP_END ((FIX_KMAP_BEGIN + FIX_KMAP_SLOTS) - 1)
-
-#define FIXADDR_TOP (FIXMAP_BASE + (FIX_KMAP_END << PAGE_SHIFT))
-
-/*
- * This should be converted to the asm-generic version, but of course this
- * is needlessly different from all other architectures. Sigh - tglx
- */
-#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
-#define __virt_to_fix(x) (((FIXADDR_TOP - ((x) & PAGE_MASK))) >> PAGE_SHIFT)
+#define FIXMAP_SIZE PGDIR_SIZE /* only 1 PGD worth */
+#define KM_TYPE_NR ((FIXMAP_SIZE >> PAGE_SHIFT)/NR_CPUS)
+#define FIXMAP_ADDR(nr) (FIXMAP_BASE + ((nr) << PAGE_SHIFT))
/* start after fixmap area */
#define PKMAP_BASE (FIXMAP_BASE + FIXMAP_SIZE)
+#define PKMAP_SIZE PGDIR_SIZE
#define LAST_PKMAP (PKMAP_SIZE >> PAGE_SHIFT)
#define LAST_PKMAP_MASK (LAST_PKMAP - 1)
#define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT))
@@ -41,13 +29,11 @@
extern void kmap_init(void);
-#define arch_kmap_local_post_unmap(vaddr) \
- local_flush_tlb_kernel_range(vaddr, vaddr + PAGE_SIZE)
-
static inline void flush_cache_kmaps(void)
{
flush_cache_all();
}
+
#endif
#endif
--
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