diff options
| author | Sona Mathew <SonaRebecca.Mathew@arm.com> | 2023-06-19 21:30:45 -0500 |
|---|---|---|
| committer | Sona Mathew <SonaRebecca.Mathew@arm.com> | 2023-08-04 17:23:18 -0500 |
| commit | 2975bc0c9df6f85d895387c4ffde621c96242c2f (patch) | |
| tree | 1859475a5865652f08c1a45b45f3d03d3825091f /lib/cpus/aarch64/cortex_x3.S | |
| parent | 51e9eb101e45cc60819c623d63db1a0308721981 (diff) | |
refactor(cpus): reorder Cortex-X3 errata by ascending order
Errata report order is enforced to be in ascending order. To achieve
this with the errata framework this has to be done at the definition
level.
Change-Id: I168bf99be0cb0b046d6b641c855f9241991bb0bc
Signed-off-by: Sona Mathew <SonaRebecca.Mathew@arm.com>
Diffstat (limited to 'lib/cpus/aarch64/cortex_x3.S')
| -rw-r--r-- | lib/cpus/aarch64/cortex_x3.S | 114 |
1 files changed, 57 insertions, 57 deletions
diff --git a/lib/cpus/aarch64/cortex_x3.S b/lib/cpus/aarch64/cortex_x3.S index f104b487f..36a7e0a1f 100644 --- a/lib/cpus/aarch64/cortex_x3.S +++ b/lib/cpus/aarch64/cortex_x3.S @@ -1,5 +1,5 @@ /* - * Copyright (c) 2021-2022, Arm Limited. All rights reserved. + * Copyright (c) 2021-2023, Arm Limited. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -26,62 +26,6 @@ wa_cve_2022_23960_bhb_vector_table CORTEX_X3_BHB_LOOP_COUNT, cortex_x3 #endif /* WORKAROUND_CVE_2022_23960 */ - /* ---------------------------------------------------- - * HW will do the cache maintenance while powering down - * ---------------------------------------------------- - */ -func cortex_x3_core_pwr_dwn -#if ERRATA_X3_2313909 - mov x15, x30 - bl cpu_get_rev_var - bl errata_cortex_x3_2313909_wa - mov x30, x15 -#endif /* ERRATA_X3_2313909 */ - - /* --------------------------------------------------- - * Enable CPU power down bit in power control register - * --------------------------------------------------- - */ - mrs x0, CORTEX_X3_CPUPWRCTLR_EL1 - orr x0, x0, #CORTEX_X3_CPUPWRCTLR_EL1_CORE_PWRDN_BIT - msr CORTEX_X3_CPUPWRCTLR_EL1, x0 - isb - ret -endfunc cortex_x3_core_pwr_dwn - -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_x3_reset_func - mov x19, x30 - /* Disable speculative loads */ - msr SSBS, xzr - -#if IMAGE_BL31 && WORKAROUND_CVE_2022_23960 - /* - * The Cortex-X3 generic vectors are overridden to apply - * errata mitigation on exception entry from lower ELs. - */ - adr x0, wa_cve_vbar_cortex_x3 - msr vbar_el3, x0 -#endif /* IMAGE_BL31 && WORKAROUND_CVE_2022_23960 */ - - bl cpu_get_rev_var - -#if ERRATA_X3_2615812 - bl errata_cortex_x3_2615812_wa -#endif /* ERRATA_X3_2615812 */ - - isb - ret x19 -endfunc cortex_x3_reset_func - /* ---------------------------------------------------------------------- * Errata Workaround for Cortex-X3 Erratum 2313909 on power down request. * This applies to revision r0p0 and r1p0 of Cortex-X3. Fixed in r1p1. @@ -139,6 +83,62 @@ func check_errata_2615812 b cpu_rev_var_ls endfunc check_errata_2615812 +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_x3_reset_func + mov x19, x30 + /* Disable speculative loads */ + msr SSBS, xzr + +#if IMAGE_BL31 && WORKAROUND_CVE_2022_23960 + /* + * The Cortex-X3 generic vectors are overridden to apply + * errata mitigation on exception entry from lower ELs. + */ + adr x0, wa_cve_vbar_cortex_x3 + msr vbar_el3, x0 +#endif /* IMAGE_BL31 && WORKAROUND_CVE_2022_23960 */ + + bl cpu_get_rev_var + +#if ERRATA_X3_2615812 + bl errata_cortex_x3_2615812_wa +#endif /* ERRATA_X3_2615812 */ + + isb + ret x19 +endfunc cortex_x3_reset_func + + /* ---------------------------------------------------- + * HW will do the cache maintenance while powering down + * ---------------------------------------------------- + */ +func cortex_x3_core_pwr_dwn +#if ERRATA_X3_2313909 + mov x15, x30 + bl cpu_get_rev_var + bl errata_cortex_x3_2313909_wa + mov x30, x15 +#endif /* ERRATA_X3_2313909 */ + + /* --------------------------------------------------- + * Enable CPU power down bit in power control register + * --------------------------------------------------- + */ + mrs x0, CORTEX_X3_CPUPWRCTLR_EL1 + orr x0, x0, #CORTEX_X3_CPUPWRCTLR_EL1_CORE_PWRDN_BIT + msr CORTEX_X3_CPUPWRCTLR_EL1, x0 + isb + ret +endfunc cortex_x3_core_pwr_dwn + #if REPORT_ERRATA /* * Errata printing function for Cortex-X3. Must follow AAPCS. |