util: Extract flush_icache_range to cacheflush.c

This has been a tcg-specific function, but is also in use
by hardware accelerators via physmem.c.  This can cause
link errors when tcg is disabled.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201214140314.18544-3-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 0 insertions, 22 deletions

diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index 18ee989f95..0d068ec8ab 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -3863,25 +3863,3 @@ void tcg_register_jit(void *buf, size_t buf_size)
     tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame));
 }
 #endif /* __ELF__ */
-
-void flush_icache_range(uintptr_t start, uintptr_t stop)
-{
-    uintptr_t p, start1, stop1;
-    size_t dsize = qemu_dcache_linesize;
-    size_t isize = qemu_icache_linesize;
-
-    start1 = start & ~(dsize - 1);
-    stop1 = (stop + dsize - 1) & ~(dsize - 1);
-    for (p = start1; p < stop1; p += dsize) {
-        asm volatile ("dcbst 0,%0" : : "r"(p) : "memory");
-    }
-    asm volatile ("sync" : : : "memory");
-
-    start &= start & ~(isize - 1);
-    stop1 = (stop + isize - 1) & ~(isize - 1);
-    for (p = start1; p < stop1; p += isize) {
-        asm volatile ("icbi 0,%0" : : "r"(p) : "memory");
-    }
-    asm volatile ("sync" : : : "memory");
-    asm volatile ("isync" : : : "memory");
-}