cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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cacheflush_32.h (1964B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _SPARC_CACHEFLUSH_H
      3#define _SPARC_CACHEFLUSH_H
      4
      5#include <asm/cachetlb_32.h>
      6
      7#define flush_cache_all() \
      8	sparc32_cachetlb_ops->cache_all()
      9#define flush_cache_mm(mm) \
     10	sparc32_cachetlb_ops->cache_mm(mm)
     11#define flush_cache_dup_mm(mm) \
     12	sparc32_cachetlb_ops->cache_mm(mm)
     13#define flush_cache_range(vma,start,end) \
     14	sparc32_cachetlb_ops->cache_range(vma, start, end)
     15#define flush_cache_page(vma,addr,pfn) \
     16	sparc32_cachetlb_ops->cache_page(vma, addr)
     17#define flush_icache_range(start, end)		do { } while (0)
     18#define flush_icache_page(vma, pg)		do { } while (0)
     19
     20#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
     21	do {							\
     22		flush_cache_page(vma, vaddr, page_to_pfn(page));\
     23		memcpy(dst, src, len);				\
     24	} while (0)
     25#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
     26	do {							\
     27		flush_cache_page(vma, vaddr, page_to_pfn(page));\
     28		memcpy(dst, src, len);				\
     29	} while (0)
     30
     31#define __flush_page_to_ram(addr) \
     32	sparc32_cachetlb_ops->page_to_ram(addr)
     33#define flush_sig_insns(mm,insn_addr) \
     34	sparc32_cachetlb_ops->sig_insns(mm, insn_addr)
     35#define flush_page_for_dma(addr) \
     36	sparc32_cachetlb_ops->page_for_dma(addr)
     37
     38struct page;
     39void sparc_flush_page_to_ram(struct page *page);
     40
     41#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
     42#define flush_dcache_page(page)			sparc_flush_page_to_ram(page)
     43#define flush_dcache_mmap_lock(mapping)		do { } while (0)
     44#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
     45
     46#define flush_cache_vmap(start, end)		flush_cache_all()
     47#define flush_cache_vunmap(start, end)		flush_cache_all()
     48
     49/* When a context switch happens we must flush all user windows so that
     50 * the windows of the current process are flushed onto its stack. This
     51 * way the windows are all clean for the next process and the stack
     52 * frames are up to date.
     53 */
     54void flush_user_windows(void);
     55void kill_user_windows(void);
     56void flushw_all(void);
     57
     58#endif /* _SPARC_CACHEFLUSH_H */