From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- arch/sparc/include/asm/cacheflush_32.h | 59 ++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 arch/sparc/include/asm/cacheflush_32.h (limited to 'arch/sparc/include/asm/cacheflush_32.h') diff --git a/arch/sparc/include/asm/cacheflush_32.h b/arch/sparc/include/asm/cacheflush_32.h new file mode 100644 index 000000000..fb66094a2 --- /dev/null +++ b/arch/sparc/include/asm/cacheflush_32.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _SPARC_CACHEFLUSH_H +#define _SPARC_CACHEFLUSH_H + +#include + +#define flush_cache_all() \ + sparc32_cachetlb_ops->cache_all() +#define flush_cache_mm(mm) \ + sparc32_cachetlb_ops->cache_mm(mm) +#define flush_cache_dup_mm(mm) \ + sparc32_cachetlb_ops->cache_mm(mm) +#define flush_cache_range(vma,start,end) \ + sparc32_cachetlb_ops->cache_range(vma, start, end) +#define flush_cache_page(vma,addr,pfn) \ + sparc32_cachetlb_ops->cache_page(vma, addr) +#define flush_icache_range(start, end) 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 copy_to_user_page(vma, page, vaddr, dst, src, len) \ + do { \ + flush_cache_page(vma, vaddr, page_to_pfn(page));\ + memcpy(dst, src, len); \ + } while (0) +#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ + do { \ + flush_cache_page(vma, vaddr, page_to_pfn(page));\ + memcpy(dst, src, len); \ + } while (0) + +#define __flush_page_to_ram(addr) \ + sparc32_cachetlb_ops->page_to_ram(addr) +#define flush_sig_insns(mm,insn_addr) \ + sparc32_cachetlb_ops->sig_insns(mm, insn_addr) +#define flush_page_for_dma(addr) \ + sparc32_cachetlb_ops->page_for_dma(addr) + +void sparc_flush_page_to_ram(struct page *page); + +#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 +#define flush_dcache_page(page) sparc_flush_page_to_ram(page) +#define flush_dcache_mmap_lock(mapping) do { } while (0) +#define flush_dcache_mmap_unlock(mapping) do { } while (0) + +#define flush_cache_vmap(start, end) flush_cache_all() +#define flush_cache_vunmap(start, end) flush_cache_all() + +/* When a context switch happens we must flush all user windows so that + * the windows of the current process are flushed onto its stack. This + * way the windows are all clean for the next process and the stack + * frames are up to date. + */ +void flush_user_windows(void); +void kill_user_windows(void); +void flushw_all(void); + +#endif /* _SPARC_CACHEFLUSH_H */ -- cgit v1.2.3