lib/cpus: Report AT speculative erratum workaround

Reported the status (applies, missing) of AT speculative workaround
which is applicable for below CPUs.

 +---------+--------------+
 | Errata  |      CPU     |
 +=========+==============+
 | 1165522 |  Cortex-A76  |
 +---------+--------------+
 | 1319367 |  Cortex-A72  |
 +---------+--------------+
 | 1319537 |  Cortex-A57  |
 +---------+--------------+
 | 1530923 |  Cortex-A55  |
 +---------+--------------+
 | 1530924 |  Cortex-A53  |
 +---------+--------------+

Also, changes are done to enable common macro 'ERRATA_SPECULATIVE_AT'
if AT speculative errata workaround is enabled for any of the above
CPUs using 'ERRATA_*' CPU specific build macro.

Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: I3e6a5316a2564071f3920c3ce9ae9a29adbe435b

lib/cpus/aarch64/cortex_a53.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -239,6 +239,20 @@ exit_check_errata_843419:
 	ret
 endfunc check_errata_843419
 
+	/* --------------------------------------------------
+	 * Errata workaround for Cortex A53 Errata #1530924.
+	 * This applies to all revisions of Cortex A53.
+	 * --------------------------------------------------
+	 */
+func check_errata_1530924
+#if ERRATA_A53_1530924
+	mov	x0, #ERRATA_APPLIES
+#else
+	mov	x0, #ERRATA_MISSING
+#endif
+	ret
+endfunc check_errata_1530924
+
 	/* -------------------------------------------------
 	 * The CPU Ops reset function for Cortex-A53.
 	 * Shall clobber: x0-x19
@@ -359,6 +373,7 @@ func cortex_a53_errata_report
 	report_errata ERRATA_A53_836870, cortex_a53, disable_non_temporal_hint
 	report_errata ERRATA_A53_843419, cortex_a53, 843419
 	report_errata ERRATA_A53_855873, cortex_a53, 855873
+	report_errata ERRATA_A53_1530924, cortex_a53, 1530924
 
 	ldp	x8, x30, [sp], #16
 	ret

lib/cpus/aarch64/cortex_a55.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -222,6 +222,20 @@ func check_errata_1221012
 	b	cpu_rev_var_ls
 endfunc check_errata_1221012
 
+	/* --------------------------------------------------
+	 * Errata workaround for Cortex A55 Errata #1530923.
+	 * This applies to all revisions of Cortex A55.
+	 * --------------------------------------------------
+	 */
+func check_errata_1530923
+#if ERRATA_A55_1530923
+	mov	x0, #ERRATA_APPLIES
+#else
+	mov	x0, #ERRATA_MISSING
+#endif
+	ret
+endfunc check_errata_1530923
+
 func cortex_a55_reset_func
 	mov	x19, x30
 
@@ -306,6 +320,7 @@ func cortex_a55_errata_report
 	report_errata ERRATA_A55_846532, cortex_a55, 846532
 	report_errata ERRATA_A55_903758, cortex_a55, 903758
 	report_errata ERRATA_A55_1221012, cortex_a55, 1221012
+	report_errata ERRATA_A55_1530923, cortex_a55, 1530923
 
 	ldp	x8, x30, [sp], #16
 	ret

lib/cpus/aarch64/cortex_a57.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
  * Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
@@ -396,6 +396,20 @@ func check_errata_cve_2018_3639
 	ret
 endfunc check_errata_cve_2018_3639
 
+	/* --------------------------------------------------
+	 * Errata workaround for Cortex A57 Errata #1319537.
+	 * This applies to all revisions of Cortex A57.
+	 * --------------------------------------------------
+	 */
+func check_errata_1319537
+#if ERRATA_A57_1319537
+	mov	x0, #ERRATA_APPLIES
+#else
+	mov	x0, #ERRATA_MISSING
+#endif
+	ret
+endfunc check_errata_1319537
+
 	/* -------------------------------------------------
 	 * The CPU Ops reset function for Cortex-A57.
 	 * Shall clobber: x0-x19
@@ -613,6 +627,7 @@ func cortex_a57_errata_report
 	report_errata ERRATA_A57_829520, cortex_a57, 829520
 	report_errata ERRATA_A57_833471, cortex_a57, 833471
 	report_errata ERRATA_A57_859972, cortex_a57, 859972
+	report_errata ERRATA_A57_1319537, cortex_a57, 1319537
 	report_errata WORKAROUND_CVE_2017_5715, cortex_a57, cve_2017_5715
 	report_errata WORKAROUND_CVE_2018_3639, cortex_a57, cve_2018_3639
 

lib/cpus/aarch64/cortex_a72.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -119,6 +119,20 @@ func check_errata_cve_2018_3639
 	ret
 endfunc check_errata_cve_2018_3639
 
+	/* --------------------------------------------------
+	 * Errata workaround for Cortex A72 Errata #1319367.
+	 * This applies to all revisions of Cortex A72.
+	 * --------------------------------------------------
+	 */
+func check_errata_1319367
+#if ERRATA_A72_1319367
+	mov	x0, #ERRATA_APPLIES
+#else
+	mov	x0, #ERRATA_MISSING
+#endif
+	ret
+endfunc check_errata_1319367
+
 	/* -------------------------------------------------
 	 * The CPU Ops reset function for Cortex-A72.
 	 * -------------------------------------------------
@@ -282,6 +296,7 @@ func cortex_a72_errata_report
 	 * checking functions of each errata.
 	 */
 	report_errata ERRATA_A72_859971, cortex_a72, 859971
+	report_errata ERRATA_A72_1319367, cortex_a72, 1319367
 	report_errata WORKAROUND_CVE_2017_5715, cortex_a72, cve_2017_5715
 	report_errata WORKAROUND_CVE_2018_3639, cortex_a72, cve_2018_3639
 

lib/cpus/aarch64/cortex_a76.S

@@ -465,6 +465,23 @@ func cortex_a76_disable_wa_cve_2018_3639
 	ret
 endfunc cortex_a76_disable_wa_cve_2018_3639
 
+	/* --------------------------------------------------------------
+	 * Errata Workaround for Cortex A76 Errata #1165522.
+	 * This applies only to revisions <= r3p0 of Cortex A76.
+	 * Due to the nature of the errata it is applied unconditionally
+	 * when built in, report it as applicable in this case
+	 * --------------------------------------------------------------
+	 */
+func check_errata_1165522
+#if ERRATA_A76_1165522
+	mov	x0, #ERRATA_APPLIES
+	ret
+#else
+	mov	x1, #0x30
+	b	cpu_rev_var_ls
+#endif
+endfunc check_errata_1165522
+
 	/* -------------------------------------------------
 	 * The CPU Ops reset function for Cortex-A76.
 	 * Shall clobber: x0-x19
@@ -597,6 +614,7 @@ func cortex_a76_errata_report
 	report_errata ERRATA_A76_1286807, cortex_a76, 1286807
 	report_errata ERRATA_A76_1791580, cortex_a76, 1791580
 	report_errata ERRATA_A76_1800710, cortex_a76, 1800710
+	report_errata ERRATA_A76_1165522, cortex_a76, 1165522
 	report_errata WORKAROUND_CVE_2018_3639, cortex_a76, cve_2018_3639
 	report_errata ERRATA_DSU_798953, cortex_a76, dsu_798953
 	report_errata ERRATA_DSU_936184, cortex_a76, dsu_936184

lib/cpus/cpu-ops.mk

@@ -130,6 +130,10 @@ ERRATA_A53_843419	?=0
 # of by the rich OS.
 ERRATA_A53_855873	?=0
 
+# Flag to apply erratum 1530924 workaround during reset. This erratum applies
+# to all revisions of Cortex A53 cpu.
+ERRATA_A53_1530924	?=0
+
 # Flag to apply erratum 768277 workaround during reset. This erratum applies
 # only to revision r0p0 of the Cortex A55 cpu.
 ERRATA_A55_768277	?=0
@@ -154,6 +158,10 @@ ERRATA_A55_903758	?=0
 # only to revision <= r1p0 of the Cortex A55 cpu.
 ERRATA_A55_1221012	?=0
 
+# Flag to apply erratum 1530923 workaround during reset. This erratum applies
+# to all revisions of Cortex A55 cpu.
+ERRATA_A55_1530923	?=0
+
 # Flag to apply erratum 806969 workaround during reset. This erratum applies
 # only to revision r0p0 of the Cortex A57 cpu.
 ERRATA_A57_806969	?=0
@@ -198,10 +206,18 @@ ERRATA_A57_833471	?=0
 # only to revision <= r1p3 of the Cortex A57 cpu.
 ERRATA_A57_859972	?=0
 
+# Flag to apply erratum 1319537 workaround during reset. This erratum applies
+# to all revisions of Cortex A57 cpu.
+ERRATA_A57_1319537	?=0
+
 # Flag to apply erratum 855971 workaround during reset. This erratum applies
 # only to revision <= r0p3 of the Cortex A72 cpu.
 ERRATA_A72_859971	?=0
 
+# Flag to apply erratum 1319367 workaround during reset. This erratum applies
+# to all revisions of Cortex A72 cpu.
+ERRATA_A72_1319367	?=0
+
 # Flag to apply erratum 852427 workaround during reset. This erratum applies
 # only to revision r0p0 of the Cortex A73 cpu.
 ERRATA_A73_852427	?=0
@@ -258,6 +274,10 @@ ERRATA_A76_1791580	?=0
 # only to revision <= r4p0 of the Cortex A76 cpu.
 ERRATA_A76_1800710	?=0
 
+# Flag to apply erratum 1165522 workaround during reset. This erratum applies
+# to all revisions of Cortex A76 cpu.
+ERRATA_A76_1165522	?=0
+
 # Flag to apply erratum 1800714 workaround during reset. This erratum applies
 # only to revision <= r1p1 of the Cortex A77 cpu.
 ERRATA_A77_1800714	?=0
@@ -379,6 +399,10 @@ $(eval $(call add_define,ERRATA_A53_843419))
 $(eval $(call assert_boolean,ERRATA_A53_855873))
 $(eval $(call add_define,ERRATA_A53_855873))
 
+# Process ERRATA_A53_1530924 flag
+$(eval $(call assert_boolean,ERRATA_A53_1530924))
+$(eval $(call add_define,ERRATA_A53_1530924))
+
 # Process ERRATA_A55_768277 flag
 $(eval $(call assert_boolean,ERRATA_A55_768277))
 $(eval $(call add_define,ERRATA_A55_768277))
@@ -403,6 +427,10 @@ $(eval $(call add_define,ERRATA_A55_903758))
 $(eval $(call assert_boolean,ERRATA_A55_1221012))
 $(eval $(call add_define,ERRATA_A55_1221012))
 
+# Process ERRATA_A55_1530923 flag
+$(eval $(call assert_boolean,ERRATA_A55_1530923))
+$(eval $(call add_define,ERRATA_A55_1530923))
+
 # Process ERRATA_A57_806969 flag
 $(eval $(call assert_boolean,ERRATA_A57_806969))
 $(eval $(call add_define,ERRATA_A57_806969))
@@ -447,10 +475,18 @@ $(eval $(call add_define,ERRATA_A57_833471))
 $(eval $(call assert_boolean,ERRATA_A57_859972))
 $(eval $(call add_define,ERRATA_A57_859972))
 
+# Process ERRATA_A57_1319537 flag
+$(eval $(call assert_boolean,ERRATA_A57_1319537))
+$(eval $(call add_define,ERRATA_A57_1319537))
+
 # Process ERRATA_A72_859971 flag
 $(eval $(call assert_boolean,ERRATA_A72_859971))
 $(eval $(call add_define,ERRATA_A72_859971))
 
+# Process ERRATA_A72_1319367 flag
+$(eval $(call assert_boolean,ERRATA_A72_1319367))
+$(eval $(call add_define,ERRATA_A72_1319367))
+
 # Process ERRATA_A73_852427 flag
 $(eval $(call assert_boolean,ERRATA_A73_852427))
 $(eval $(call add_define,ERRATA_A73_852427))
@@ -507,6 +543,10 @@ $(eval $(call add_define,ERRATA_A76_1791580))
 $(eval $(call assert_boolean,ERRATA_A76_1800710))
 $(eval $(call add_define,ERRATA_A76_1800710))
 
+# Process ERRATA_A76_1165522 flag
+$(eval $(call assert_boolean,ERRATA_A76_1165522))
+$(eval $(call add_define,ERRATA_A76_1165522))
+
 # Process ERRATA_A77_1800714 flag
 $(eval $(call assert_boolean,ERRATA_A77_1800714))
 $(eval $(call add_define,ERRATA_A77_1800714))
@@ -580,3 +620,10 @@ ifneq (${ERRATA_A53_835769},0)
 TF_CFLAGS_aarch64	+= -mfix-cortex-a53-835769
 TF_LDFLAGS_aarch64	+= --fix-cortex-a53-835769
 endif
+
+ifneq ($(filter 1,${ERRATA_A53_1530924} ${ERRATA_A55_1530923}	\
+	${ERRATA_A57_1319537} ${ERRATA_A72_1319367} ${ERRATA_A76_1165522}),)
+ERRATA_SPECULATIVE_AT	:= 1
+else
+ERRATA_SPECULATIVE_AT	:= 0
+endif