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Message-ID: <f60f3c75-d1cf-4622-8815-8cea17ae323c@quicinc.com>
Date: Wed, 24 Jul 2024 11:28:36 -0700
From: Prudhvi Yarlagadda <quic_pyarlaga@...cinc.com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
CC: <jingoohan1@...il.com>, <lpieralisi@...nel.org>, <kw@...ux.com>,
        <robh@...nel.org>, <bhelgaas@...gle.com>, <linux-pci@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <quic_mrana@...cinc.com>
Subject: Re: [PATCH v3 1/2] PCI: dwc: Add dbi_phys_addr and atu_phys_addr to
 struct dw_pcie

Hi Manivannan,

Thanks for the review comments.

On 7/24/2024 6:53 AM, Manivannan Sadhasivam wrote:
> On Tue, Jul 23, 2024 at 07:27:18PM -0700, Prudhvi Yarlagadda wrote:
> 
> Subject could be modified as below:
> 
> PCI: dwc: Cache DBI and iATU physical addresses in 'struct dw_pcie_ops'
> 

ACK. I will update it in the next patch.

>> Both DBI and ATU physical base addresses are needed by pcie_qcom.c
>> driver to program the location of DBI and ATU blocks in Qualcomm
>> PCIe Controller specific PARF hardware block.
>>
>> Signed-off-by: Prudhvi Yarlagadda <quic_pyarlaga@...cinc.com>
> 
> Suggested-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> 
> - Mani
> 

ACK. I will add it in the next patch.

Thanks,
Prudhvi
>> Reviewed-by: Mayank Rana <quic_mrana@...cinc.com>
>> ---
>>  drivers/pci/controller/dwc/pcie-designware.c | 2 ++
>>  drivers/pci/controller/dwc/pcie-designware.h | 2 ++
>>  2 files changed, 4 insertions(+)
>>
>> diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c
>> index 1b5aba1f0c92..bc3a5d6b0177 100644
>> --- a/drivers/pci/controller/dwc/pcie-designware.c
>> +++ b/drivers/pci/controller/dwc/pcie-designware.c
>> @@ -112,6 +112,7 @@ int dw_pcie_get_resources(struct dw_pcie *pci)
>>  		pci->dbi_base = devm_pci_remap_cfg_resource(pci->dev, res);
>>  		if (IS_ERR(pci->dbi_base))
>>  			return PTR_ERR(pci->dbi_base);
>> +		pci->dbi_phys_addr = res->start;
>>  	}
>>  
>>  	/* DBI2 is mainly useful for the endpoint controller */
>> @@ -134,6 +135,7 @@ int dw_pcie_get_resources(struct dw_pcie *pci)
>>  			pci->atu_base = devm_ioremap_resource(pci->dev, res);
>>  			if (IS_ERR(pci->atu_base))
>>  				return PTR_ERR(pci->atu_base);
>> +			pci->atu_phys_addr = res->start;
>>  		} else {
>>  			pci->atu_base = pci->dbi_base + DEFAULT_DBI_ATU_OFFSET;
>>  		}
>> diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
>> index 53c4c8f399c8..efc72989330c 100644
>> --- a/drivers/pci/controller/dwc/pcie-designware.h
>> +++ b/drivers/pci/controller/dwc/pcie-designware.h
>> @@ -407,8 +407,10 @@ struct dw_pcie_ops {
>>  struct dw_pcie {
>>  	struct device		*dev;
>>  	void __iomem		*dbi_base;
>> +	phys_addr_t		dbi_phys_addr;
>>  	void __iomem		*dbi_base2;
>>  	void __iomem		*atu_base;
>> +	phys_addr_t		atu_phys_addr;
>>  	size_t			atu_size;
>>  	u32			num_ib_windows;
>>  	u32			num_ob_windows;
>> -- 
>> 2.25.1
>>
> 

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