| Message ID | 20241219131107.v3.2.I520dfa10ad9f598581c2591d631aa6e9e26f7603@changeid (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | arm64: cputype: Add info about some Qualcomm Kryo cores | expand |
On Thu, Dec 19, 2024 at 01:11:10PM -0800, Douglas Anderson wrote: > 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>
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h index c8058f91a5bd..8782d4721f81 100644 --- a/arch/arm64/include/asm/cputype.h +++ b/arch/arm64/include/asm/cputype.h @@ -200,6 +200,16 @@ #define MIDR_QCOM_KRYO_3XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_3XX_SILVER) #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) + +/* + * 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)
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> --- Changes in v3: - New arch/arm64/include/asm/cputype.h | 10 ++++++++++ 1 file changed, 10 insertions(+)