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[Qemu-devel] [PATCH 2/5] ppc: Improve flags for helpers loading/writing


From: Benjamin Herrenschmidt
Subject: [Qemu-devel] [PATCH 2/5] ppc: Improve flags for helpers loading/writing the time facilities
Date: Sun, 31 Jul 2016 15:13:10 +1000

Those helpers never load from or store to the TCG tracked environment,
not do they generate synchronous exceptions (they might generate an
asynchronous interrupt but that's not an issue here).

So we can make them all use TCG_CALL_NO_RWG

Signed-off-by: Benjamin Herrenschmidt <address@hidden>
---
 target-ppc/helper.h | 42 +++++++++++++++++++++---------------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 8eada2f..b0c1db9 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -595,35 +595,35 @@ DEF_HELPER_2(load_dump_spr, void, env, i32)
 DEF_HELPER_2(store_dump_spr, void, env, i32)
 DEF_HELPER_4(fscr_facility_check, void, env, i32, i32, i32)
 DEF_HELPER_4(msr_facility_check, void, env, i32, i32, i32)
-DEF_HELPER_1(load_tbl, tl, env)
-DEF_HELPER_1(load_tbu, tl, env)
-DEF_HELPER_1(load_atbl, tl, env)
-DEF_HELPER_1(load_atbu, tl, env)
-DEF_HELPER_1(load_601_rtcl, tl, env)
-DEF_HELPER_1(load_601_rtcu, tl, env)
+DEF_HELPER_FLAGS_1(load_tbl, TCG_CALL_NO_RWG, tl, env)
+DEF_HELPER_FLAGS_1(load_tbu, TCG_CALL_NO_RWG, tl, env)
+DEF_HELPER_FLAGS_1(load_atbl, TCG_CALL_NO_RWG, tl, env)
+DEF_HELPER_FLAGS_1(load_atbu, TCG_CALL_NO_RWG, tl, env)
+DEF_HELPER_FLAGS_1(load_601_rtcl, TCG_CALL_NO_RWG, tl, env)
+DEF_HELPER_FLAGS_1(load_601_rtcu, TCG_CALL_NO_RWG, tl, env)
 #if !defined(CONFIG_USER_ONLY)
 #if defined(TARGET_PPC64)
-DEF_HELPER_1(load_purr, tl, env)
+DEF_HELPER_FLAGS_1(load_purr, TCG_CALL_NO_RWG, tl, env)
 #endif
 DEF_HELPER_2(store_sdr1, void, env, tl)
-DEF_HELPER_2(store_tbl, void, env, tl)
-DEF_HELPER_2(store_tbu, void, env, tl)
-DEF_HELPER_2(store_atbl, void, env, tl)
-DEF_HELPER_2(store_atbu, void, env, tl)
-DEF_HELPER_2(store_601_rtcl, void, env, tl)
-DEF_HELPER_2(store_601_rtcu, void, env, tl)
-DEF_HELPER_1(load_decr, tl, env)
-DEF_HELPER_2(store_decr, void, env, tl)
-DEF_HELPER_1(load_hdecr, tl, env)
-DEF_HELPER_2(store_hdecr, void, env, tl)
+DEF_HELPER_FLAGS_2(store_tbl, TCG_CALL_NO_RWG, void, env, tl)
+DEF_HELPER_FLAGS_2(store_tbu, TCG_CALL_NO_RWG, void, env, tl)
+DEF_HELPER_FLAGS_2(store_atbl, TCG_CALL_NO_RWG, void, env, tl)
+DEF_HELPER_FLAGS_2(store_atbu, TCG_CALL_NO_RWG, void, env, tl)
+DEF_HELPER_FLAGS_2(store_601_rtcl, TCG_CALL_NO_RWG, void, env, tl)
+DEF_HELPER_FLAGS_2(store_601_rtcu, TCG_CALL_NO_RWG, void, env, tl)
+DEF_HELPER_FLAGS_1(load_decr, TCG_CALL_NO_RWG, tl, env)
+DEF_HELPER_FLAGS_2(store_decr, TCG_CALL_NO_RWG, void, env, tl)
+DEF_HELPER_FLAGS_1(load_hdecr, TCG_CALL_NO_RWG, tl, env)
+DEF_HELPER_FLAGS_2(store_hdecr, TCG_CALL_NO_RWG, void, env, tl)
 DEF_HELPER_2(store_hid0_601, void, env, tl)
 DEF_HELPER_3(store_403_pbr, void, env, i32, tl)
-DEF_HELPER_1(load_40x_pit, tl, env)
-DEF_HELPER_2(store_40x_pit, void, env, tl)
+DEF_HELPER_FLAGS_1(load_40x_pit, TCG_CALL_NO_RWG, tl, env)
+DEF_HELPER_FLAGS_2(store_40x_pit, TCG_CALL_NO_RWG, void, env, tl)
 DEF_HELPER_2(store_40x_dbcr0, void, env, tl)
 DEF_HELPER_2(store_40x_sler, void, env, tl)
-DEF_HELPER_2(store_booke_tcr, void, env, tl)
-DEF_HELPER_2(store_booke_tsr, void, env, tl)
+DEF_HELPER_FLAGS_2(store_booke_tcr, TCG_CALL_NO_RWG, void, env, tl)
+DEF_HELPER_FLAGS_2(store_booke_tsr, TCG_CALL_NO_RWG, void, env, tl)
 DEF_HELPER_3(store_ibatl, void, env, i32, tl)
 DEF_HELPER_3(store_ibatu, void, env, i32, tl)
 DEF_HELPER_3(store_dbatl, void, env, i32, tl)
-- 
2.7.4




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