Searched hist:"09 c1edb84b9d2e91ce425b4300042751b3899434" (Results 1 – 3 of 3) sorted by relevance
| /rk3399_ARM-atf/lib/cpus/aarch64/ |
| H A D | cortex_x4.S | 09c1edb84b9d2e91ce425b4300042751b3899434 Fri Feb 07 20:21:14 UTC 2025 Govindraj Raja <govindraj.raja@arm.com> fix(cpus): workaround for Cortex-X4 erratum 2957258
Cortex-X4 erratum 2957258 that applies to r0p0, r0p1 and is fixed in r0p2.
In EL3, reads of MPIDR_EL1 and MIDR_EL1 might incorrectly virtualize which register to return when reading the value of MPIDR_EL1/VMPIDR_EL2 and MIDR_EL1/VPIDR_EL2, respectively.
The workaround is to do an ISB prior to an MRS read to either MPIDR_EL1 and MIDR_EL1.
SDEN documentation: https://developer.arm.com/documentation/109148/latest/
Change-Id: I2d8e7f4ce19ca2e1d87527c31e7778d81aff0279 Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
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| /rk3399_ARM-atf/docs/design/ |
| H A D | cpu-specific-build-macros.rst | 09c1edb84b9d2e91ce425b4300042751b3899434 Fri Feb 07 20:21:14 UTC 2025 Govindraj Raja <govindraj.raja@arm.com> fix(cpus): workaround for Cortex-X4 erratum 2957258
Cortex-X4 erratum 2957258 that applies to r0p0, r0p1 and is fixed in r0p2.
In EL3, reads of MPIDR_EL1 and MIDR_EL1 might incorrectly virtualize which register to return when reading the value of MPIDR_EL1/VMPIDR_EL2 and MIDR_EL1/VPIDR_EL2, respectively.
The workaround is to do an ISB prior to an MRS read to either MPIDR_EL1 and MIDR_EL1.
SDEN documentation: https://developer.arm.com/documentation/109148/latest/
Change-Id: I2d8e7f4ce19ca2e1d87527c31e7778d81aff0279 Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
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| /rk3399_ARM-atf/lib/cpus/ |
| H A D | cpu-ops.mk | 09c1edb84b9d2e91ce425b4300042751b3899434 Fri Feb 07 20:21:14 UTC 2025 Govindraj Raja <govindraj.raja@arm.com> fix(cpus): workaround for Cortex-X4 erratum 2957258
Cortex-X4 erratum 2957258 that applies to r0p0, r0p1 and is fixed in r0p2.
In EL3, reads of MPIDR_EL1 and MIDR_EL1 might incorrectly virtualize which register to return when reading the value of MPIDR_EL1/VMPIDR_EL2 and MIDR_EL1/VPIDR_EL2, respectively.
The workaround is to do an ISB prior to an MRS read to either MPIDR_EL1 and MIDR_EL1.
SDEN documentation: https://developer.arm.com/documentation/109148/latest/
Change-Id: I2d8e7f4ce19ca2e1d87527c31e7778d81aff0279 Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
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