From 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:46:07 +0000
Subject: [PATCH] add audio
---
kernel/arch/xtensa/include/asm/highmem.h | 39 ++++++++++-----------------------------
1 files changed, 10 insertions(+), 29 deletions(-)
diff --git a/kernel/arch/xtensa/include/asm/highmem.h b/kernel/arch/xtensa/include/asm/highmem.h
index 04e9340..0fc3b1c 100644
--- a/kernel/arch/xtensa/include/asm/highmem.h
+++ b/kernel/arch/xtensa/include/asm/highmem.h
@@ -13,12 +13,11 @@
#define _XTENSA_HIGHMEM_H
#include <linux/wait.h>
+#include <linux/pgtable.h>
#include <asm/cacheflush.h>
#include <asm/fixmap.h>
-#include <asm/kmap_types.h>
-#include <asm/pgtable.h>
-#define PKMAP_BASE ((FIXADDR_START - \
+#define PKMAP_BASE ((FIXADDR_START - \
(LAST_PKMAP + 1) * PAGE_SIZE) & PMD_MASK)
#define LAST_PKMAP (PTRS_PER_PTE * DCACHE_N_COLORS)
#define LAST_PKMAP_MASK (LAST_PKMAP - 1)
@@ -63,37 +62,19 @@
extern pte_t *pkmap_page_table;
-void *kmap_high(struct page *page);
-void kunmap_high(struct page *page);
-
-static inline void *kmap(struct page *page)
-{
- /* Check if this memory layout is broken because PKMAP overlaps
- * page table.
- */
- BUILD_BUG_ON(PKMAP_BASE <
- TLBTEMP_BASE_1 + TLBTEMP_SIZE);
- BUG_ON(in_interrupt());
- if (!PageHighMem(page))
- return page_address(page);
- return kmap_high(page);
-}
-
-static inline void kunmap(struct page *page)
-{
- BUG_ON(in_interrupt());
- if (!PageHighMem(page))
- return;
- kunmap_high(page);
-}
-
static inline void flush_cache_kmaps(void)
{
flush_cache_all();
}
-void *kmap_atomic(struct page *page);
-void __kunmap_atomic(void *kvaddr);
+enum fixed_addresses kmap_local_map_idx(int type, unsigned long pfn);
+#define arch_kmap_local_map_idx kmap_local_map_idx
+
+enum fixed_addresses kmap_local_unmap_idx(int type, unsigned long addr);
+#define arch_kmap_local_unmap_idx kmap_local_unmap_idx
+
+#define arch_kmap_local_post_unmap(vaddr) \
+ local_flush_tlb_kernel_range(vaddr, vaddr + PAGE_SIZE)
void kmap_init(void);
--
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