| #
34a22a02 |
| 05-Aug-2025 |
Boyan Karatotev <boyan.karatotev@arm.com> |
refactor(el3-runtime): move context security states to context.h
The three security states (S, NS, RL) are architecturally quite
consistent - anything that uses them has the same numerical assignmen
refactor(el3-runtime): move context security states to context.h
The three security states (S, NS, RL) are architecturally quite
consistent - anything that uses them has the same numerical assignments
(0, 1, 2) and they are quite convenient for indexing. However, we're not
as consistent in tf-a and this is defined in a few places. Since
cpu_data has a dependency on the context management library, use its
security state convention in a few more places and take away this
responsibility from cpu_data.
Change-Id: Iec73b2be2eef91975554767557de72424d0031f1
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
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| #
4b6e4e61 |
| 20-Aug-2024 |
Manish V Badarkhe <manish.badarkhe@arm.com> |
Merge changes from topic "mp/simd_ctxt_mgmt" into integration
* changes:
feat(fvp): allow SIMD context to be put in TZC DRAM
docs(simd): introduce CTX_INCLUDE_SVE_REGS build flag
feat(fvp): ad
Merge changes from topic "mp/simd_ctxt_mgmt" into integration
* changes:
feat(fvp): allow SIMD context to be put in TZC DRAM
docs(simd): introduce CTX_INCLUDE_SVE_REGS build flag
feat(fvp): add Cactus partition manifest for EL3 SPMC
chore(simd): remove unused macros and utilities for FP
feat(el3-spmc): support simd context management upon world switch
feat(trusty): switch to simd_ctx_save/restore apis
feat(pncd): switch to simd_ctx_save/restore apis
feat(spm-mm): switch to simd_ctx_save/restore APIs
feat(simd): add rules to rationalize simd ctxt mgmt
feat(simd): introduce simd context helper APIs
feat(simd): add routines to save, restore sve state
feat(simd): add sve state to simd ctxt struct
feat(simd): add data struct for simd ctxt management
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| #
42422622 |
| 17-Jun-2024 |
Madhukar Pappireddy <madhukar.pappireddy@arm.com> |
feat(simd): add sve state to simd ctxt struct
This patch extends the simd data structure to hold the SVE state. A new
build flag CTX_INCLUDE_SVE_REGS is introduced in this patch to enable
SVE contex
feat(simd): add sve state to simd ctxt struct
This patch extends the simd data structure to hold the SVE state. A new
build flag CTX_INCLUDE_SVE_REGS is introduced in this patch to enable
SVE context management.
Necessary precautions are taken such as ensuring the field offsets are
not changed and necessary padding is added for alignment reasons.
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
Signed-off-by: Okash Khawaja <okash@google.com>
Change-Id: I54f5222c7d8c68638105003f68caa511d347cd60
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| #
841533dd |
| 17-Jun-2024 |
Madhukar Pappireddy <madhukar.pappireddy@arm.com> |
feat(simd): add data struct for simd ctxt management
From a context management perspective, we refer to SVE and FP state
as SIMD. SVE can be considered as a superset of FP/NEON functionality
and the
feat(simd): add data struct for simd ctxt management
From a context management perspective, we refer to SVE and FP state
as SIMD. SVE can be considered as a superset of FP/NEON functionality
and there is a architectural dependency between the two due to the fact
that FP registers occupy the bottom 128 bits of SVE Z vector registers.
This patch introduces a new data structure to hold the FP state of a CPU
as needed for context management operations during world switch events.
It will evolve in next patches to capture the SVE state as well.
Having this unified data structure is necessary for us to implement
SIMD context management while catering to various build configurations.
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
Signed-off-by: Okash Khawaja <okash@google.com>
Change-Id: If2a9a7526883780df49bbd3dade2f09f7c3d95ae
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