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arm64: cputype: Add comments about Qualcomm Kryo 5XX and 6XX cores

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As tested on one example of a Qualcomm Kryo 5XX CPU [1] and one
example of a Qualcomm Kryo 6XX CPU [2], we don't need any extra MIDR
definitions for the cores in those processors. Add comments to make it
clear that these IDs weren't forgotten and just aren't needed.

[1] https://lore.kernel.org/r/l5rqbbxn6hktlcxooolkvi5n3arkht6zzhrvdjf6kis322nsup@5hsrak4cgteq/
[2] https://lore.kernel.org/r/tx7vtur7yea6ruefrkpkccqptahgmxnsrudwdz5uzcfxnng25b@afrr5bmdk2xa/

Suggested-by: Julius Werner <jwerner@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Trilok Soni <quic_tsoni@quicinc.com>
Link: https://lore.kernel.org/r/20241219131107.v3.2.I520dfa10ad9f598581c2591d631aa6e9e26f7603@changeid
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Douglas Anderson 2024-12-19 13:11:10 -08:00 committed by Catalin Marinas
parent 401c3333bb
commit 53a52a0ec7
1 changed files with 10 additions and 0 deletions
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10
arch/arm64/include/asm/cputype.h
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@ -202,6 +202,16 @@
#define MIDR_QCOM_KRYO_4XX_GOLD MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_4XX_GOLD)
#define MIDR_QCOM_KRYO_4XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_4XX_SILVER)
#define MIDR_QCOM_ORYON_X1 MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_ORYON_X1)
/*
* NOTES:
* - Qualcomm Kryo 5XX Prime / Gold ID themselves as MIDR_CORTEX_A77
* - Qualcomm Kryo 5XX Silver IDs itself as MIDR_QCOM_KRYO_4XX_SILVER
* - Qualcomm Kryo 6XX Prime IDs itself as MIDR_CORTEX_X1
* - Qualcomm Kryo 6XX Gold IDs itself as ARM_CPU_PART_CORTEX_A78
* - Qualcomm Kryo 6XX Silver IDs itself as MIDR_CORTEX_A55
*/
#define MIDR_NVIDIA_DENVER MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_DENVER)
#define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL)
#define MIDR_FUJITSU_A64FX MIDR_CPU_MODEL(ARM_CPU_IMP_FUJITSU, FUJITSU_CPU_PART_A64FX)