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Message-ID: <49869a94-ef6d-7f77-298e-493c25ae0679@linux.intel.com>
Date: Fri, 7 Feb 2025 16:39:15 +0200 (EET)
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Xi Pardee <xi.pardee@...ux.intel.com>
cc: rajvi0912@...il.com, irenic.rajneesh@...il.com,
david.e.box@...ux.intel.com, Hans de Goede <hdegoede@...hat.com>,
platform-driver-x86@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
linux-pm@...r.kernel.org
Subject: Re: [PATCH v5 5/5] platform/x86/intel/pmc: Add Arrow Lake U/H support
to intel_pmc_core driver
On Tue, 4 Feb 2025, Xi Pardee wrote:
> Add Arrow Lake U and Arrow Lake H support in intel_pmc_core driver.
>
> Signed-off-by: Rajvi Jingar <rajvi.jingar@...ux.intel.com>
> Signed-off-by: Xi Pardee <xi.pardee@...ux.intel.com>
> ---
> drivers/platform/x86/intel/pmc/arl.c | 37 +++++++++++++++++++++++++++
> drivers/platform/x86/intel/pmc/core.c | 2 ++
> drivers/platform/x86/intel/pmc/core.h | 2 ++
> 3 files changed, 41 insertions(+)
>
> diff --git a/drivers/platform/x86/intel/pmc/arl.c b/drivers/platform/x86/intel/pmc/arl.c
> index 2e604f934f068..f62763865207b 100644
> --- a/drivers/platform/x86/intel/pmc/arl.c
> +++ b/drivers/platform/x86/intel/pmc/arl.c
> @@ -16,6 +16,7 @@
> #define IOEP_LPM_REQ_GUID 0x5077612
> #define SOCS_LPM_REQ_GUID 0x8478657
> #define PCHS_LPM_REQ_GUID 0x9684572
> +#define SOCM_LPM_REQ_GUID 0x2625030
>
> static const u8 ARL_LPM_REG_INDEX[] = {0, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 20};
>
> @@ -650,6 +651,7 @@ const struct pmc_reg_map arl_pchs_reg_map = {
> .etr3_offset = ETR3_OFFSET,
> };
>
> +#define PMC_DEVID_SOCM 0x777f
> #define PMC_DEVID_SOCS 0xae7f
> #define PMC_DEVID_IOEP 0x7ecf
> #define PMC_DEVID_PCHS 0x7f27
> @@ -669,11 +671,17 @@ static struct pmc_info arl_pmc_info_list[] = {
> .devid = PMC_DEVID_PCHS,
> .map = &arl_pchs_reg_map,
> },
> + {
> + .guid = SOCM_LPM_REQ_GUID,
> + .devid = PMC_DEVID_SOCM,
> + .map = &mtl_socm_reg_map,
> + },
> {}
> };
>
> #define ARL_NPU_PCI_DEV 0xad1d
> #define ARL_GNA_PCI_DEV 0xae4c
> +#define ARL_H_GNA_PCI_DEV 0x774c
> /*
> * Set power state of select devices that do not have drivers to D3
> * so that they do not block Package C entry.
> @@ -684,6 +692,12 @@ static void arl_d3_fixup(void)
> pmc_core_set_device_d3(ARL_GNA_PCI_DEV);
> }
>
> +static void arl_h_d3_fixup(void)
> +{
> + pmc_core_set_device_d3(ARL_NPU_PCI_DEV);
> + pmc_core_set_device_d3(ARL_H_GNA_PCI_DEV);
> +}
> +
> static int arl_resume(struct pmc_dev *pmcdev)
> {
> arl_d3_fixup();
> @@ -691,6 +705,13 @@ static int arl_resume(struct pmc_dev *pmcdev)
> return cnl_resume(pmcdev);
> }
>
> +static int arl_h_resume(struct pmc_dev *pmcdev)
> +{
> + arl_h_d3_fixup();
> +
> + return cnl_resume(pmcdev);
> +}
> +
> struct pmc_dev_info arl_pmc_dev = {
> .pci_func = 0,
> .dmu_guid = ARL_PMT_DMU_GUID,
> @@ -701,8 +722,24 @@ struct pmc_dev_info arl_pmc_dev = {
> .init = arl_core_init,
> };
>
> +struct pmc_dev_info arl_h_pmc_dev = {
> + .pci_func = 2,
> + .dmu_guid = ARL_PMT_DMU_GUID,
> + .regmap_list = arl_pmc_info_list,
> + .map = &mtl_socm_reg_map,
> + .suspend = cnl_suspend,
> + .resume = arl_h_resume,
> + .init = arl_h_core_init,
> +};
This struct should come after the init function so you don't need to
forward declare the init function and can make the init function a static
one (as with the other cases in patch 4).
> +
> int arl_core_init(struct pmc_dev *pmcdev, struct pmc_dev_info *pmc_dev_info)
> {
> arl_d3_fixup();
> return generic_core_init(pmcdev, pmc_dev_info);
> }
> +
> +int arl_h_core_init(struct pmc_dev *pmcdev, struct pmc_dev_info *pmc_dev_info)
> +{
> + arl_h_d3_fixup();
> + return generic_core_init(pmcdev, pmc_dev_info);
> +}
> diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
> index 628cb22221fbc..d819478fea29a 100644
> --- a/drivers/platform/x86/intel/pmc/core.c
> +++ b/drivers/platform/x86/intel/pmc/core.c
> @@ -1410,6 +1410,8 @@ static const struct x86_cpu_id intel_pmc_core_ids[] = {
> X86_MATCH_VFM(INTEL_RAPTORLAKE_S, &adl_pmc_dev),
> X86_MATCH_VFM(INTEL_METEORLAKE_L, &mtl_pmc_dev),
> X86_MATCH_VFM(INTEL_ARROWLAKE, &arl_pmc_dev),
> + X86_MATCH_VFM(INTEL_ARROWLAKE_H, &arl_h_pmc_dev),
> + X86_MATCH_VFM(INTEL_ARROWLAKE_U, &arl_h_pmc_dev),
> X86_MATCH_VFM(INTEL_LUNARLAKE_M, &lnl_pmc_dev),
> {}
> };
> diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
> index 94039930422b3..0f0ee97ee00a8 100644
> --- a/drivers/platform/x86/intel/pmc/core.h
> +++ b/drivers/platform/x86/intel/pmc/core.h
> @@ -624,9 +624,11 @@ extern struct pmc_dev_info tgl_pmc_dev;
> extern struct pmc_dev_info adl_pmc_dev;
> extern struct pmc_dev_info mtl_pmc_dev;
> extern struct pmc_dev_info arl_pmc_dev;
> +extern struct pmc_dev_info arl_h_pmc_dev;
> extern struct pmc_dev_info lnl_pmc_dev;
>
> int arl_core_init(struct pmc_dev *pmcdev, struct pmc_dev_info *pmc_dev_info);
> +int arl_h_core_init(struct pmc_dev *pmcdev, struct pmc_dev_info *pmc_dev_info);
Not needed.
> int mtl_core_init(struct pmc_dev *pmcdev, struct pmc_dev_info *pmc_dev_info);
> int lnl_core_init(struct pmc_dev *pmcdev, struct pmc_dev_info *pmc_dev_info);
> int tgl_core_init(struct pmc_dev *pmcdev, struct pmc_dev_info *pmc_dev_info);
>
--
i.
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