Hi all, I am writing a software to implement communication over PCI. PCI host machine (PPC cpu) writes commands to the PCI memory space of the (Coldfire CPU) target device. Target device takes the command and executes it. Target devices SDRAM is exposed over PCI to host. A circular buffer residing on target memory is used for command exchange. I should not allow host and target to play on the buffer simultaneously in order to avoid corruption. Does anybody know how to implement a lock suitable for this issue? or any lock less algorithm exists for communication over PCI? Regards, Arun C -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
