GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)
This commit is contained in:
@@ -0,0 +1,670 @@
|
||||
/*
|
||||
* Copyright (c) 2020-2022, Arm Limited. All rights reserved.
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-3-Clause
|
||||
*/
|
||||
|
||||
#include <arch.h>
|
||||
#include <asm_macros.S>
|
||||
#include <cpu_macros.S>
|
||||
#include <neoverse_n2.h>
|
||||
#include "wa_cve_2022_23960_bhb_vector.S"
|
||||
|
||||
/* Hardware handled coherency */
|
||||
#if HW_ASSISTED_COHERENCY == 0
|
||||
#error "Neoverse N2 must be compiled with HW_ASSISTED_COHERENCY enabled"
|
||||
#endif
|
||||
|
||||
/* 64-bit only core */
|
||||
#if CTX_INCLUDE_AARCH32_REGS == 1
|
||||
#error "Neoverse-N2 supports only AArch64. Compile with CTX_INCLUDE_AARCH32_REGS=0"
|
||||
#endif
|
||||
|
||||
#if WORKAROUND_CVE_2022_23960
|
||||
wa_cve_2022_23960_bhb_vector_table NEOVERSE_N2_BHB_LOOP_COUNT, neoverse_n2
|
||||
#endif /* WORKAROUND_CVE_2022_23960 */
|
||||
|
||||
/* --------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2002655.
|
||||
* This applies to revision r0p0 of Neoverse N2. it is still open.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x17
|
||||
* --------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2002655_wa
|
||||
/* Check revision. */
|
||||
mov x17, x30
|
||||
bl check_errata_2002655
|
||||
cbz x0, 1f
|
||||
|
||||
/* Apply instruction patching sequence */
|
||||
ldr x0,=0x6
|
||||
msr S3_6_c15_c8_0,x0
|
||||
ldr x0,=0xF3A08002
|
||||
msr S3_6_c15_c8_2,x0
|
||||
ldr x0,=0xFFF0F7FE
|
||||
msr S3_6_c15_c8_3,x0
|
||||
ldr x0,=0x40000001003ff
|
||||
msr S3_6_c15_c8_1,x0
|
||||
ldr x0,=0x7
|
||||
msr S3_6_c15_c8_0,x0
|
||||
ldr x0,=0xBF200000
|
||||
msr S3_6_c15_c8_2,x0
|
||||
ldr x0,=0xFFEF0000
|
||||
msr S3_6_c15_c8_3,x0
|
||||
ldr x0,=0x40000001003f3
|
||||
msr S3_6_c15_c8_1,x0
|
||||
isb
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2002655_wa
|
||||
|
||||
func check_errata_2002655
|
||||
/* Applies to r0p0 */
|
||||
mov x1, #0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2002655
|
||||
|
||||
/* ---------------------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2067956.
|
||||
* This applies to revision r0p0 of Neoverse N2 and is still open.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x17
|
||||
* ---------------------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2067956_wa
|
||||
/* Compare x0 against revision r0p0 */
|
||||
mov x17, x30
|
||||
bl check_errata_2067956
|
||||
cbz x0, 1f
|
||||
mrs x1, NEOVERSE_N2_CPUACTLR_EL1
|
||||
orr x1, x1, NEOVERSE_N2_CPUACTLR_EL1_BIT_46
|
||||
msr NEOVERSE_N2_CPUACTLR_EL1, x1
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2067956_wa
|
||||
|
||||
func check_errata_2067956
|
||||
/* Applies to r0p0 */
|
||||
mov x1, #0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2067956
|
||||
|
||||
/* ---------------------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2025414.
|
||||
* This applies to revision r0p0 of Neoverse N2 and is still open.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x17
|
||||
* ---------------------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2025414_wa
|
||||
/* Compare x0 against revision r0p0 */
|
||||
mov x17, x30
|
||||
bl check_errata_2025414
|
||||
cbz x0, 1f
|
||||
mrs x1, NEOVERSE_N2_CPUECTLR_EL1
|
||||
orr x1, x1, NEOVERSE_N2_CPUECTLR_EL1_PFSTIDIS_BIT
|
||||
msr NEOVERSE_N2_CPUECTLR_EL1, x1
|
||||
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2025414_wa
|
||||
|
||||
func check_errata_2025414
|
||||
/* Applies to r0p0 */
|
||||
mov x1, #0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2025414
|
||||
|
||||
/* ---------------------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2189731.
|
||||
* This applies to revision r0p0 of Neoverse N2 and is still open.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x17
|
||||
* ---------------------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2189731_wa
|
||||
/* Compare x0 against revision r0p0 */
|
||||
mov x17, x30
|
||||
bl check_errata_2189731
|
||||
cbz x0, 1f
|
||||
mrs x1, NEOVERSE_N2_CPUACTLR5_EL1
|
||||
orr x1, x1, NEOVERSE_N2_CPUACTLR5_EL1_BIT_44
|
||||
msr NEOVERSE_N2_CPUACTLR5_EL1, x1
|
||||
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2189731_wa
|
||||
|
||||
func check_errata_2189731
|
||||
/* Applies to r0p0 */
|
||||
mov x1, #0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2189731
|
||||
|
||||
/* --------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2138956.
|
||||
* This applies to revision r0p0 of Neoverse N2. it is still open.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x17
|
||||
* --------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2138956_wa
|
||||
/* Check revision. */
|
||||
mov x17, x30
|
||||
bl check_errata_2138956
|
||||
cbz x0, 1f
|
||||
|
||||
/* Apply instruction patching sequence */
|
||||
ldr x0,=0x3
|
||||
msr S3_6_c15_c8_0,x0
|
||||
ldr x0,=0xF3A08002
|
||||
msr S3_6_c15_c8_2,x0
|
||||
ldr x0,=0xFFF0F7FE
|
||||
msr S3_6_c15_c8_3,x0
|
||||
ldr x0,=0x10002001003FF
|
||||
msr S3_6_c15_c8_1,x0
|
||||
ldr x0,=0x4
|
||||
msr S3_6_c15_c8_0,x0
|
||||
ldr x0,=0xBF200000
|
||||
msr S3_6_c15_c8_2,x0
|
||||
ldr x0,=0xFFEF0000
|
||||
msr S3_6_c15_c8_3,x0
|
||||
ldr x0,=0x10002001003F3
|
||||
msr S3_6_c15_c8_1,x0
|
||||
isb
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2138956_wa
|
||||
|
||||
func check_errata_2138956
|
||||
/* Applies to r0p0 */
|
||||
mov x1, #0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2138956
|
||||
|
||||
/* --------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2242415.
|
||||
* This applies to revision r0p0 of Neoverse N2. it is still open.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x1, x17
|
||||
* --------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2242415_wa
|
||||
/* Check revision. */
|
||||
mov x17, x30
|
||||
bl check_errata_2242415
|
||||
cbz x0, 1f
|
||||
|
||||
/* Apply instruction patching sequence */
|
||||
mrs x1, NEOVERSE_N2_CPUACTLR_EL1
|
||||
orr x1, x1, NEOVERSE_N2_CPUACTLR_EL1_BIT_22
|
||||
msr NEOVERSE_N2_CPUACTLR_EL1, x1
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2242415_wa
|
||||
|
||||
func check_errata_2242415
|
||||
/* Applies to r0p0 */
|
||||
mov x1, #0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2242415
|
||||
|
||||
/* --------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2138953.
|
||||
* This applies to revision r0p0 of Neoverse N2. it is still open.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x1, x17
|
||||
* --------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2138953_wa
|
||||
/* Check revision. */
|
||||
mov x17, x30
|
||||
bl check_errata_2138953
|
||||
cbz x0, 1f
|
||||
|
||||
/* Apply instruction patching sequence */
|
||||
mrs x1, NEOVERSE_N2_CPUECTLR2_EL1
|
||||
mov x0, #NEOVERSE_N2_CPUECTLR2_EL1_PF_MODE_CNSRV
|
||||
bfi x1, x0, #CPUECTLR2_EL1_PF_MODE_LSB, #CPUECTLR2_EL1_PF_MODE_WIDTH
|
||||
msr NEOVERSE_N2_CPUECTLR2_EL1, x1
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2138953_wa
|
||||
|
||||
func check_errata_2138953
|
||||
/* Applies to r0p0 */
|
||||
mov x1, #0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2138953
|
||||
|
||||
/* --------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2138958.
|
||||
* This applies to revision r0p0 of Neoverse N2. it is still open.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x1, x17
|
||||
* --------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2138958_wa
|
||||
/* Check revision. */
|
||||
mov x17, x30
|
||||
bl check_errata_2138958
|
||||
cbz x0, 1f
|
||||
|
||||
/* Apply instruction patching sequence */
|
||||
mrs x1, NEOVERSE_N2_CPUACTLR5_EL1
|
||||
orr x1, x1, NEOVERSE_N2_CPUACTLR5_EL1_BIT_13
|
||||
msr NEOVERSE_N2_CPUACTLR5_EL1, x1
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2138958_wa
|
||||
|
||||
func check_errata_2138958
|
||||
/* Applies to r0p0 */
|
||||
mov x1, #0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2138958
|
||||
|
||||
/* --------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2242400.
|
||||
* This applies to revision r0p0 of Neoverse N2. it is still open.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x1, x17
|
||||
* --------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2242400_wa
|
||||
/* Check revision. */
|
||||
mov x17, x30
|
||||
bl check_errata_2242400
|
||||
cbz x0, 1f
|
||||
|
||||
/* Apply instruction patching sequence */
|
||||
mrs x1, NEOVERSE_N2_CPUACTLR5_EL1
|
||||
orr x1, x1, NEOVERSE_N2_CPUACTLR5_EL1_BIT_17
|
||||
msr NEOVERSE_N2_CPUACTLR5_EL1, x1
|
||||
ldr x0, =0x2
|
||||
msr S3_6_c15_c8_0, x0
|
||||
ldr x0, =0x10F600E000
|
||||
msr S3_6_c15_c8_2, x0
|
||||
ldr x0, =0x10FF80E000
|
||||
msr S3_6_c15_c8_3, x0
|
||||
ldr x0, =0x80000000003FF
|
||||
msr S3_6_c15_c8_1, x0
|
||||
isb
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2242400_wa
|
||||
|
||||
func check_errata_2242400
|
||||
/* Applies to r0p0 */
|
||||
mov x1, #0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2242400
|
||||
|
||||
/* --------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2280757.
|
||||
* This applies to revision r0p0 of Neoverse N2. it is still open.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x1, x17
|
||||
* --------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2280757_wa
|
||||
/* Check revision. */
|
||||
mov x17, x30
|
||||
bl check_errata_2280757
|
||||
cbz x0, 1f
|
||||
|
||||
/* Apply instruction patching sequence */
|
||||
mrs x1, NEOVERSE_N2_CPUACTLR_EL1
|
||||
orr x1, x1, NEOVERSE_N2_CPUACTLR_EL1_BIT_22
|
||||
msr NEOVERSE_N2_CPUACTLR_EL1, x1
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2280757_wa
|
||||
|
||||
func check_errata_2280757
|
||||
/* Applies to r0p0 */
|
||||
mov x1, #0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2280757
|
||||
|
||||
/* --------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2326639.
|
||||
* This applies to revision r0p0 of Neoverse N2,
|
||||
* fixed in r0p1.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x1, x17
|
||||
* --------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2326639_wa
|
||||
/* Check revision. */
|
||||
mov x17, x30
|
||||
bl check_errata_2326639
|
||||
cbz x0, 1f
|
||||
|
||||
/* Set bit 36 in ACTLR2_EL1 */
|
||||
mrs x1, NEOVERSE_N2_CPUACTLR2_EL1
|
||||
orr x1, x1, #NEOVERSE_N2_CPUACTLR2_EL1_BIT_36
|
||||
msr NEOVERSE_N2_CPUACTLR2_EL1, x1
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2326639_wa
|
||||
|
||||
func check_errata_2326639
|
||||
/* Applies to r0p0, fixed in r0p1 */
|
||||
mov x1, #0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2326639
|
||||
|
||||
/* --------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2376738.
|
||||
* This applies to revision r0p0 of Neoverse N2,
|
||||
* fixed in r0p1.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current CPU.
|
||||
* Shall clobber: x0-x1, x17
|
||||
* --------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2376738_wa
|
||||
mov x17, x30
|
||||
bl check_errata_2376738
|
||||
cbz x0, 1f
|
||||
|
||||
/* Set CPUACTLR2_EL1[0] to 1 to force PLDW/PFRM
|
||||
* ST to behave like PLD/PFRM LD and not cause
|
||||
* invalidations to other PE caches.
|
||||
*/
|
||||
mrs x1, NEOVERSE_N2_CPUACTLR2_EL1
|
||||
orr x1, x1, NEOVERSE_N2_CPUACTLR2_EL1_BIT_0
|
||||
msr NEOVERSE_N2_CPUACTLR2_EL1, x1
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2376738_wa
|
||||
|
||||
func check_errata_2376738
|
||||
/* Applies to r0p0, fixed in r0p1 */
|
||||
mov x1, 0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2376738
|
||||
|
||||
/* --------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2388450.
|
||||
* This applies to revision r0p0 of Neoverse N2,
|
||||
* fixed in r0p1.
|
||||
* Inputs:
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x1, x17
|
||||
* --------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2388450_wa
|
||||
/* Check revision. */
|
||||
mov x17, x30
|
||||
bl check_errata_2388450
|
||||
cbz x0, 1f
|
||||
|
||||
/*Set bit 40 in ACTLR2_EL1 */
|
||||
mrs x1, NEOVERSE_N2_CPUACTLR2_EL1
|
||||
orr x1, x1, #NEOVERSE_N2_CPUACTLR2_EL1_BIT_40
|
||||
msr NEOVERSE_N2_CPUACTLR2_EL1, x1
|
||||
isb
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2388450_wa
|
||||
|
||||
func check_errata_2388450
|
||||
/* Applies to r0p0, fixed in r0p1 */
|
||||
mov x1, #0x00
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2388450
|
||||
|
||||
/* -------------------------------------------------------
|
||||
* Errata Workaround for Neoverse N2 Erratum 2743089.
|
||||
* This applies to revisions <= r0p2 and is fixed in r0p3.
|
||||
* x0: variant[4:7] and revision[0:3] of current cpu.
|
||||
* Shall clobber: x0-x17
|
||||
* -------------------------------------------------------
|
||||
*/
|
||||
func errata_n2_2743089_wa
|
||||
mov x17, x30
|
||||
bl check_errata_2743089
|
||||
cbz x0, 1f
|
||||
|
||||
/* dsb before isb of power down sequence */
|
||||
dsb sy
|
||||
1:
|
||||
ret x17
|
||||
endfunc errata_n2_2743089_wa
|
||||
|
||||
func check_errata_2743089
|
||||
/* Applies to all revisions <= r0p2 */
|
||||
mov x1, #0x02
|
||||
b cpu_rev_var_ls
|
||||
endfunc check_errata_2743089
|
||||
|
||||
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
|
||||
|
||||
/* -------------------------------------------
|
||||
* The CPU Ops reset function for Neoverse N2.
|
||||
* -------------------------------------------
|
||||
*/
|
||||
func neoverse_n2_reset_func
|
||||
mov x19, x30
|
||||
|
||||
/* Check if the PE implements SSBS */
|
||||
mrs x0, id_aa64pfr1_el1
|
||||
tst x0, #(ID_AA64PFR1_EL1_SSBS_MASK << ID_AA64PFR1_EL1_SSBS_SHIFT)
|
||||
b.eq 1f
|
||||
|
||||
/* Disable speculative loads */
|
||||
msr SSBS, xzr
|
||||
1:
|
||||
/* Force all cacheable atomic instructions to be near */
|
||||
mrs x0, NEOVERSE_N2_CPUACTLR2_EL1
|
||||
orr x0, x0, #NEOVERSE_N2_CPUACTLR2_EL1_BIT_2
|
||||
msr NEOVERSE_N2_CPUACTLR2_EL1, x0
|
||||
|
||||
/* Get the CPU revision and stash it in x18. */
|
||||
bl cpu_get_rev_var
|
||||
mov x18, x0
|
||||
|
||||
#if ERRATA_DSU_2313941
|
||||
bl errata_dsu_2313941_wa
|
||||
#endif
|
||||
|
||||
#if ERRATA_N2_2067956
|
||||
mov x0, x18
|
||||
bl errata_n2_2067956_wa
|
||||
#endif
|
||||
|
||||
#if ERRATA_N2_2025414
|
||||
mov x0, x18
|
||||
bl errata_n2_2025414_wa
|
||||
#endif
|
||||
|
||||
#if ERRATA_N2_2189731
|
||||
mov x0, x18
|
||||
bl errata_n2_2189731_wa
|
||||
#endif
|
||||
|
||||
|
||||
#if ERRATA_N2_2138956
|
||||
mov x0, x18
|
||||
bl errata_n2_2138956_wa
|
||||
#endif
|
||||
|
||||
#if ERRATA_N2_2138953
|
||||
mov x0, x18
|
||||
bl errata_n2_2138953_wa
|
||||
#endif
|
||||
|
||||
#if ERRATA_N2_2242415
|
||||
mov x0, x18
|
||||
bl errata_n2_2242415_wa
|
||||
#endif
|
||||
|
||||
#if ERRATA_N2_2138958
|
||||
mov x0, x18
|
||||
bl errata_n2_2138958_wa
|
||||
#endif
|
||||
|
||||
#if ERRATA_N2_2242400
|
||||
mov x0, x18
|
||||
bl errata_n2_2242400_wa
|
||||
#endif
|
||||
|
||||
#if ERRATA_N2_2280757
|
||||
mov x0, x18
|
||||
bl errata_n2_2280757_wa
|
||||
#endif
|
||||
|
||||
#if ERRATA_N2_2376738
|
||||
mov x0, x18
|
||||
bl errata_n2_2376738_wa
|
||||
#endif
|
||||
|
||||
#if ERRATA_N2_2388450
|
||||
mov x0, x18
|
||||
bl errata_n2_2388450_wa
|
||||
#endif
|
||||
|
||||
#if ENABLE_AMU
|
||||
/* Make sure accesses from EL0/EL1 and EL2 are not trapped to EL3 */
|
||||
mrs x0, cptr_el3
|
||||
orr x0, x0, #TAM_BIT
|
||||
msr cptr_el3, x0
|
||||
|
||||
/* Make sure accesses from EL0/EL1 are not trapped to EL2 */
|
||||
mrs x0, cptr_el2
|
||||
orr x0, x0, #TAM_BIT
|
||||
msr cptr_el2, x0
|
||||
|
||||
/* No need to enable the counters as this would be done at el3 exit */
|
||||
#endif
|
||||
|
||||
#if NEOVERSE_Nx_EXTERNAL_LLC
|
||||
/* Some systems may have External LLC, core needs to be made aware */
|
||||
mrs x0, NEOVERSE_N2_CPUECTLR_EL1
|
||||
orr x0, x0, NEOVERSE_N2_CPUECTLR_EL1_EXTLLC_BIT
|
||||
msr NEOVERSE_N2_CPUECTLR_EL1, x0
|
||||
#endif
|
||||
|
||||
#if ERRATA_N2_2002655
|
||||
mov x0, x18
|
||||
bl errata_n2_2002655_wa
|
||||
#endif
|
||||
|
||||
#if IMAGE_BL31 && WORKAROUND_CVE_2022_23960
|
||||
/*
|
||||
* The Neoverse-N2 generic vectors are overridden to apply errata
|
||||
* mitigation on exception entry from lower ELs.
|
||||
*/
|
||||
adr x0, wa_cve_vbar_neoverse_n2
|
||||
msr vbar_el3, x0
|
||||
#endif /* IMAGE_BL31 && WORKAROUND_CVE_2022_23960 */
|
||||
|
||||
isb
|
||||
ret x19
|
||||
endfunc neoverse_n2_reset_func
|
||||
|
||||
func neoverse_n2_core_pwr_dwn
|
||||
#if ERRATA_N2_2326639
|
||||
mov x15, x30
|
||||
bl cpu_get_rev_var
|
||||
bl errata_n2_2326639_wa
|
||||
mov x30, x15
|
||||
#endif /* ERRATA_N2_2326639 */
|
||||
|
||||
/* ---------------------------------------------------
|
||||
* Enable CPU power down bit in power control register
|
||||
* No need to do cache maintenance here.
|
||||
* ---------------------------------------------------
|
||||
*/
|
||||
mrs x0, NEOVERSE_N2_CPUPWRCTLR_EL1
|
||||
orr x0, x0, #NEOVERSE_N2_CORE_PWRDN_EN_BIT
|
||||
msr NEOVERSE_N2_CPUPWRCTLR_EL1, x0
|
||||
#if ERRATA_N2_2743089
|
||||
mov x15, x30
|
||||
bl cpu_get_rev_var
|
||||
bl errata_n2_2743089_wa
|
||||
mov x30, x15
|
||||
#endif /* ERRATA_N2_2743089 */
|
||||
isb
|
||||
ret
|
||||
endfunc neoverse_n2_core_pwr_dwn
|
||||
|
||||
#if REPORT_ERRATA
|
||||
/*
|
||||
* Errata printing function for Neoverse N2 cores. Must follow AAPCS.
|
||||
*/
|
||||
func neoverse_n2_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 ERRATA_N2_2002655, neoverse_n2, 2002655
|
||||
report_errata ERRATA_N2_2067956, neoverse_n2, 2067956
|
||||
report_errata ERRATA_N2_2025414, neoverse_n2, 2025414
|
||||
report_errata ERRATA_N2_2189731, neoverse_n2, 2189731
|
||||
report_errata ERRATA_N2_2138956, neoverse_n2, 2138956
|
||||
report_errata ERRATA_N2_2138953, neoverse_n2, 2138953
|
||||
report_errata ERRATA_N2_2242415, neoverse_n2, 2242415
|
||||
report_errata ERRATA_N2_2138958, neoverse_n2, 2138958
|
||||
report_errata ERRATA_N2_2242400, neoverse_n2, 2242400
|
||||
report_errata ERRATA_N2_2280757, neoverse_n2, 2280757
|
||||
report_errata ERRATA_N2_2326639, neoverse_n2, 2326639
|
||||
report_errata ERRATA_N2_2376738, neoverse_n2, 2376738
|
||||
report_errata ERRATA_N2_2388450, neoverse_n2, 2388450
|
||||
report_errata ERRATA_N2_2743089, neoverse_n2, 2743089
|
||||
report_errata WORKAROUND_CVE_2022_23960, neoverse_n2, cve_2022_23960
|
||||
report_errata ERRATA_DSU_2313941, neoverse_n2, dsu_2313941
|
||||
|
||||
ldp x8, x30, [sp], #16
|
||||
ret
|
||||
endfunc neoverse_n2_errata_report
|
||||
#endif
|
||||
|
||||
/* ---------------------------------------------
|
||||
* This function provides Neoverse N2 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.neoverse_n2_regs, "aS"
|
||||
neoverse_n2_regs: /* The ASCII list of register names to be reported */
|
||||
.asciz "cpupwrctlr_el1", ""
|
||||
|
||||
func neoverse_n2_cpu_reg_dump
|
||||
adr x6, neoverse_n2_regs
|
||||
mrs x8, NEOVERSE_N2_CPUPWRCTLR_EL1
|
||||
ret
|
||||
endfunc neoverse_n2_cpu_reg_dump
|
||||
|
||||
declare_cpu_ops neoverse_n2, NEOVERSE_N2_MIDR, \
|
||||
neoverse_n2_reset_func, \
|
||||
neoverse_n2_core_pwr_dwn
|
||||
Reference in New Issue
Block a user