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-rw-r--r--qemu/target-ppc/timebase_helper.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/qemu/target-ppc/timebase_helper.c b/qemu/target-ppc/timebase_helper.c
new file mode 100644
index 000000000..865dcbed2
--- /dev/null
+++ b/qemu/target-ppc/timebase_helper.c
@@ -0,0 +1,159 @@
+/*
+ * PowerPC emulation helpers for QEMU.
+ *
+ * Copyright (c) 2003-2007 Jocelyn Mayer
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+#include "cpu.h"
+#include "exec/helper-proto.h"
+
+/*****************************************************************************/
+/* SPR accesses */
+
+target_ulong helper_load_tbl(CPUPPCState *env)
+{
+ return (target_ulong)cpu_ppc_load_tbl(env);
+}
+
+target_ulong helper_load_tbu(CPUPPCState *env)
+{
+ return cpu_ppc_load_tbu(env);
+}
+
+target_ulong helper_load_atbl(CPUPPCState *env)
+{
+ return (target_ulong)cpu_ppc_load_atbl(env);
+}
+
+target_ulong helper_load_atbu(CPUPPCState *env)
+{
+ return cpu_ppc_load_atbu(env);
+}
+
+#if defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY)
+target_ulong helper_load_purr(CPUPPCState *env)
+{
+ return (target_ulong)cpu_ppc_load_purr(env);
+}
+#endif
+
+target_ulong helper_load_601_rtcl(CPUPPCState *env)
+{
+ return cpu_ppc601_load_rtcl(env);
+}
+
+target_ulong helper_load_601_rtcu(CPUPPCState *env)
+{
+ return cpu_ppc601_load_rtcu(env);
+}
+
+#if !defined(CONFIG_USER_ONLY)
+void helper_store_tbl(CPUPPCState *env, target_ulong val)
+{
+ cpu_ppc_store_tbl(env, val);
+}
+
+void helper_store_tbu(CPUPPCState *env, target_ulong val)
+{
+ cpu_ppc_store_tbu(env, val);
+}
+
+void helper_store_atbl(CPUPPCState *env, target_ulong val)
+{
+ cpu_ppc_store_atbl(env, val);
+}
+
+void helper_store_atbu(CPUPPCState *env, target_ulong val)
+{
+ cpu_ppc_store_atbu(env, val);
+}
+
+void helper_store_601_rtcl(CPUPPCState *env, target_ulong val)
+{
+ cpu_ppc601_store_rtcl(env, val);
+}
+
+void helper_store_601_rtcu(CPUPPCState *env, target_ulong val)
+{
+ cpu_ppc601_store_rtcu(env, val);
+}
+
+target_ulong helper_load_decr(CPUPPCState *env)
+{
+ return cpu_ppc_load_decr(env);
+}
+
+void helper_store_decr(CPUPPCState *env, target_ulong val)
+{
+ cpu_ppc_store_decr(env, val);
+}
+
+target_ulong helper_load_40x_pit(CPUPPCState *env)
+{
+ return load_40x_pit(env);
+}
+
+void helper_store_40x_pit(CPUPPCState *env, target_ulong val)
+{
+ store_40x_pit(env, val);
+}
+
+void helper_store_booke_tcr(CPUPPCState *env, target_ulong val)
+{
+ store_booke_tcr(env, val);
+}
+
+void helper_store_booke_tsr(CPUPPCState *env, target_ulong val)
+{
+ store_booke_tsr(env, val);
+}
+#endif
+
+/*****************************************************************************/
+/* Embedded PowerPC specific helpers */
+
+/* XXX: to be improved to check access rights when in user-mode */
+target_ulong helper_load_dcr(CPUPPCState *env, target_ulong dcrn)
+{
+ uint32_t val = 0;
+
+ if (unlikely(env->dcr_env == NULL)) {
+ qemu_log("No DCR environment\n");
+ helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
+ POWERPC_EXCP_INVAL |
+ POWERPC_EXCP_INVAL_INVAL);
+ } else if (unlikely(ppc_dcr_read(env->dcr_env,
+ (uint32_t)dcrn, &val) != 0)) {
+ qemu_log("DCR read error %d %03x\n", (uint32_t)dcrn, (uint32_t)dcrn);
+ helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
+ POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
+ }
+ return val;
+}
+
+void helper_store_dcr(CPUPPCState *env, target_ulong dcrn, target_ulong val)
+{
+ if (unlikely(env->dcr_env == NULL)) {
+ qemu_log("No DCR environment\n");
+ helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
+ POWERPC_EXCP_INVAL |
+ POWERPC_EXCP_INVAL_INVAL);
+ } else if (unlikely(ppc_dcr_write(env->dcr_env, (uint32_t)dcrn,
+ (uint32_t)val) != 0)) {
+ qemu_log("DCR write error %d %03x\n", (uint32_t)dcrn, (uint32_t)dcrn);
+ helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
+ POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);
+ }
+}