Altera Stratix II GX PCIe - Interrupt Handling

[Altera_Forum]

In the Jungo Windriver manual I saw this paragraph: 

 " note: for level-sensitive interrupts, such as pci/compactpci interrupts, you must use driverwizard to define the interrupts status register and assign the read / write command (s) for acknowledging (clearing) the interrupt, before attempting to listen to the interrupts with the wizard, otherwise the os may hang!   the specific interrupt-acknowledgment information is hardware-specific "  In the manual I often see expressions related to device interrupts - that they are hardware specific.  1) Where can I get more info on interrupts on my board ? (i have altera stratix ii gx pci-express development kit, system - windows xp )  2) How can I get info on DMA control registers, those which must be programmed - to start DMA transfer ? Where can I get address of this register ?  3) In my design DMA starts only when I press on-board button. How to force this DMA start from application without using buttons ?  Please, help, I'm totally stuck with this project.  Thanks in advance.

[Altera_Forum]

85 Views and no ideas? :/ huh

[Altera_Forum]

--- Quote Start ---  In the Jungo Windriver manual I saw this paragraph:  " note: for level-sensitive interrupts, such as pci/compactpci interrupts, you must use driverwizard to define the interrupts status register and assign the read / write command (s) for acknowledging (clearing) the interrupt, before attempting to listen to the interrupts with the wizard, otherwise the os may hang!   the specific interrupt-acknowledgment information is hardware-specific "  In the manual I often see expressions related to device interrupts - that they are hardware specific.  1) Where can I get more info on interrupts on my board ? (i have altera stratix ii gx pci-express development kit, system - windows xp )  2) How can I get info on DMA control registers, those which must be programmed - to start DMA transfer ? Where can I get address of this register ?  3) In my design DMA starts only when I press on-board button. How to force this DMA start from application without using buttons ?  Please, help, I'm totally stuck with this project.  Thanks in advance.  --- Quote End ---    1) You can use an LED to indicate an MSI is sending(i.e., app_msi_ack is asserted)  2)I don't know whether you are using the chainning DMA example. If is, read the code.  3)I don't get you. As far as I know, a DMA operation always starts by the software running on the OS writes the DMA regs to start the DMA state machine.