Commit 53a52a0e authored by Douglas Anderson's avatar Douglas Anderson Committed by Catalin Marinas
Browse files

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

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: default avatarJulius Werner <jwerner@chromium.org>
Signed-off-by: default avatarDouglas Anderson <dianders@chromium.org>
Reviewed-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: default avatarTrilok Soni <quic_tsoni@quicinc.com>
Link: https://lore.kernel.org/r/20241219131107.v3.2.I520dfa10ad9f598581c2591d631aa6e9e26f7603@changeid


Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 401c3333

arch/arm64/include/asm/cputype.h

+10 −0
Original line number Diff line number Diff line
@@ -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)