view src/hotspot/cpu/s390/icache_s390.cpp @ 54970:b776653628c5

8218991: s390: Add intrinsic for GHASH algorithm Reviewed-by: lucy, simonis
author mdoerr
date Mon, 18 Feb 2019 12:16:02 +0100
parents 6032b31e3719
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 * Copyright (c) 2016 SAP SE. All rights reserved.
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 * published by the Free Software Foundation.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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#include "runtime/icache.hpp"

// interface (see ICache::flush_icache_stub_t):
//   address   addr   (Z_R2, ignored)
//   int       lines  (Z_R3, ignored)
//   int       magic  (Z_R4)
//   returns: int (Z_R2)
//   Note: z/Architecture doesn't need explicit flushing, so this is implemented as a nop.

// Call c function (which just does nothing).
int z_flush_icache(address start, int lines, int magic) { return magic; }

void ICacheStubGenerator::generate_icache_flush(ICache::flush_icache_stub_t* flush_icache_stub) {
  *flush_icache_stub = (ICache::flush_icache_stub_t)z_flush_icache;

  // First call to flush itself.
  ICache::invalidate_range((address)(*flush_icache_stub), 0);