- ``ERRATA_N1_1073348``: This applies errata 1073348 workaround to Neoverse-N1
CPU. This needs to be enabled only for revision r0p0 and r1p0 of the CPU.
+- ``ERRATA_N1_1130799``: This applies errata 1130799 workaround to Neoverse-N1
+ CPU. This needs to be enabled only for revision <= r2p0 of the CPU.
+
- ``ERRATA_N1_1315703``: This applies errata 1315703 workaround to Neoverse-N1
CPU. This needs to be enabled only for revision <= r3p0 of the CPU.
b cpu_rev_var_ls
endfunc check_errata_1073348
+/* --------------------------------------------------
+ * Errata Workaround for Neoverse N1 Errata #1130799
+ * This applies to revision <=r2p0 of Neoverse N1.
+ * Inputs:
+ * x0: variant[4:7] and revision[0:3] of current cpu.
+ * Shall clobber: x0-x17
+ * --------------------------------------------------
+ */
+func errata_n1_1130799_wa
+ /* Compare x0 against revision r2p0 */
+ mov x17, x30
+ bl check_errata_1130799
+ cbz x0, 1f
+ mrs x1, NEOVERSE_N1_CPUACTLR2_EL1
+ orr x1, x1, NEOVERSE_N1_CPUACTLR2_EL1_BIT_59
+ msr NEOVERSE_N1_CPUACTLR2_EL1, x1
+ isb
+1:
+ ret x17
+endfunc errata_n1_1130799_wa
+
+func check_errata_1130799
+ /* Applies to <=r2p0 */
+ mov x1, #0x20
+ b cpu_rev_var_ls
+endfunc check_errata_1130799
+
/* --------------------------------------------------
* Errata Workaround for Neoverse N1 Erratum 1315703.
* This applies to revision <= r3p0 of Neoverse N1.
bl errata_n1_1073348_wa
#endif
+#if ERRATA_N1_1130799
+ mov x0, x18
+ bl errata_n1_1130799_wa
+#endif
+
#if ERRATA_N1_1315703
mov x0, x18
bl errata_n1_1315703_wa
*/
report_errata ERRATA_N1_1043202, neoverse_n1, 1043202
report_errata ERRATA_N1_1073348, neoverse_n1, 1073348
+ report_errata ERRATA_N1_1130799, neoverse_n1, 1130799
report_errata ERRATA_N1_1315703, neoverse_n1, 1315703
report_errata ERRATA_DSU_936184, neoverse_n1, dsu_936184
# only to revision r0p0 and r1p0 of the Neoverse N1 cpu.
ERRATA_N1_1073348 ?=0
+# Flag to apply erratum 1130799 workaround during reset. This erratum applies
+# only to revision <= r2p0 of the Neoverse N1 cpu.
+ERRATA_N1_1130799 ?=0
+
# Flag to apply erratum 1315703 workaround during reset. This erratum applies
# to revisions before r3p1 of the Neoverse N1 cpu.
ERRATA_N1_1315703 ?=1
$(eval $(call assert_boolean,ERRATA_N1_1073348))
$(eval $(call add_define,ERRATA_N1_1073348))
+# Process ERRATA_N1_1130799 flag
+$(eval $(call assert_boolean,ERRATA_N1_1130799))
+$(eval $(call add_define,ERRATA_N1_1130799))
+
# Process ERRATA_N1_1315703 flag
$(eval $(call assert_boolean,ERRATA_N1_1315703))
$(eval $(call add_define,ERRATA_N1_1315703))