PCI Memory region

Hello,

Which guide you are trying to follow? Is it this one?

http://processors.wiki.ti.com/index.php/Building_Qt_with_OpenGL_ES_accelerated_by_SGX

BR

Vladimir

Hi Vladimir,

Yes, we followed the same link to compile Qt but we are not facing on Qt compilation. We are facing the issue at the time of insmod of pvrsrvkm.ko. 

Issue is: 

pvrsrvkm: Unknown symbol pci_save_state (err 0)

pvrsrvkm: Unknown symbol pci_request_region (err 0)

pvrsrvkm: Unknown symbol pci_enable_device (err 0)

In our current setup we disabled PCI component. To enable we need the memory region used for PCI

Regards,

Gowthaman.P.

You are not disabling Xorg in your build process. Refer to below link for the right options for non-Xorg build.

http://processors.wiki.ti.com/index.php/Graphics_SDK_Quick_installation_and_user_guide#Non-Xorg_build

Hello,

Thanks a lot, Prabindh.

Gowthaman.P., about the PCIe memory region part - I am not sure what you are referring to, but there is Table 2-3. L3 Memory Map in the Device datasheet. There are the PCIe and PCIe registers. Let us know if something more is required.

BR

Vladimir

Hi Vladimir,

Main problem here is loading PCI driver along with Sasken custom driver.

Sasken custom drive uses memory starting from 0xb3000000 till 0xb5000000.  We are getting device busy error if while loading Sasken driver. (PCI driver is already loaded during booting)

We tried to change starting address  at various location starting from 0xA0000000, but we get same error.

But if we disable PCI Bus support in kernel, we are able to load Sasken custom driver without any issue. But we are not able to SGX modules in this configuration

In order to use SGX modules, PCI driver is required.

So we wanted to know address range mapped in PCI driver, so that we are able to load Sasken custom driver with PCI bus support enabled in kernel configuration.

Regards,

Shashikiran

Hello Shashikiran,

I am wondering here. Are you able to acquire some info with commands like these (and other similar)?

cat /proc/meminfo

cat /proc/iomem

cat /proc/ioports

cat /proc/vmallocinfo

lspci -v

BR

Vladimir

Hello Vladimir,

I had uploaded the logs. Each log contains the output of commands requested by you.

ti_sgx_with_pci_log.txt file has information with PCI bus support enabled in Kernel

ti_sgx_without_pci_log file has information when PCI bus support disabled in kernel.

Is    '80000000-ffffffff : pcie-inbound0' configuration is creating problem while loading Sasken Custom driver..? If so, how to change this..?

Also please let us know what region is used by SGX related drivers to transfer the data using PCI interface.  

Regards,

Shashikiran

Hello Vladimir,

I had uploaded the logs. Each log contains the output of commands requested by you.

ti_sgx_with_pci_log.txt file has information with PCI bus support enabled in Kernel

ti_sgx_without_pci_log file has information when PCI bus support disabled in kernel.

Is    '80000000-ffffffff : pcie-inbound0' configuration is creating problem while loading Sasken Custom driver..? If so, how to change this..?

Also please let us know what region is used by SGX related drivers to transfer the data using PCI interface.  

Regards,

Shashikiran1222.sgx_pci.zip