chore: rename hunter to a720
Rename cortex_hunter to cortex_a720
Change-Id: Id4e0e2cd47051c2e92b3f16373ea06ef4df1d75f
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
diff --git a/lib/cpus/aarch64/cortex_a720.S b/lib/cpus/aarch64/cortex_a720.S
new file mode 100644
index 0000000..529ab50
--- /dev/null
+++ b/lib/cpus/aarch64/cortex_a720.S
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2021-2023, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+#include <common/bl_common.h>
+#include <cortex_a720.h>
+#include <cpu_macros.S>
+#include <plat_macros.S>
+#include "wa_cve_2022_23960_bhb_vector.S"
+
+/* Hardware handled coherency */
+#if HW_ASSISTED_COHERENCY == 0
+#error "Cortex A720 must be compiled with HW_ASSISTED_COHERENCY enabled"
+#endif
+
+/* 64-bit only core */
+#if CTX_INCLUDE_AARCH32_REGS == 1
+#error "Cortex A720 supports only AArch64. Compile with CTX_INCLUDE_AARCH32_REGS=0"
+#endif
+
+#if WORKAROUND_CVE_2022_23960
+ wa_cve_2022_23960_bhb_vector_table CORTEX_A720_BHB_LOOP_COUNT, cortex_a720
+#endif /* WORKAROUND_CVE_2022_23960 */
+
+func check_errata_cve_2022_23960
+#if WORKAROUND_CVE_2022_23960
+ mov x0, #ERRATA_APPLIES
+#else
+ mov x0, #ERRATA_MISSING
+#endif
+ ret
+endfunc check_errata_cve_2022_23960
+
+func cortex_a720_reset_func
+ /* Disable speculative loads */
+ msr SSBS, xzr
+
+#if IMAGE_BL31 && WORKAROUND_CVE_2022_23960
+ /*
+ * The Cortex A720 generic vectors are overridden to apply errata
+ * mitigation on exception entry from lower ELs.
+ */
+ adr x0, wa_cve_vbar_cortex_a720
+ msr vbar_el3, x0
+#endif /* IMAGE_BL31 && WORKAROUND_CVE_2022_23960 */
+
+ isb
+ ret
+endfunc cortex_a720_reset_func
+
+ /* ----------------------------------------------------
+ * HW will do the cache maintenance while powering down
+ * ----------------------------------------------------
+ */
+func cortex_a720_core_pwr_dwn
+ /* ---------------------------------------------------
+ * Enable CPU power down bit in power control register
+ * ---------------------------------------------------
+ */
+ mrs x0, CORTEX_A720_CPUPWRCTLR_EL1
+ orr x0, x0, #CORTEX_A720_CPUPWRCTLR_EL1_CORE_PWRDN_BIT
+ msr CORTEX_A720_CPUPWRCTLR_EL1, x0
+ isb
+ ret
+endfunc cortex_a720_core_pwr_dwn
+
+#if REPORT_ERRATA
+/*
+ * Errata printing function for Cortex A720. Must follow AAPCS.
+ */
+func cortex_a720_errata_report
+ stp x8, x30, [sp, #-16]!
+
+ bl cpu_get_rev_var
+ mov x8, x0
+
+ /*
+ * Report all errata. The revision-variant information is passed to
+ * checking functions of each errata.
+ */
+ report_errata WORKAROUND_CVE_2022_23960, cortex_a720, cve_2022_23960
+
+ ldp x8, x30, [sp], #16
+ ret
+endfunc cortex_a720_errata_report
+#endif
+
+ /* ---------------------------------------------
+ * This function provides Cortex A720-specific
+ * register information for crash reporting.
+ * It needs to return with x6 pointing to
+ * a list of register names in ascii and
+ * x8 - x15 having values of registers to be
+ * reported.
+ * ---------------------------------------------
+ */
+.section .rodata.cortex_a720_regs, "aS"
+cortex_a720_regs: /* The ascii list of register names to be reported */
+ .asciz "cpuectlr_el1", ""
+
+func cortex_a720_cpu_reg_dump
+ adr x6, cortex_a720_regs
+ mrs x8, CORTEX_A720_CPUECTLR_EL1
+ ret
+endfunc cortex_a720_cpu_reg_dump
+
+declare_cpu_ops cortex_a720, CORTEX_A720_MIDR, \
+ cortex_a720_reset_func, \
+ cortex_a720_core_pwr_dwn