Commit 945c1eee authored by Joel Fernandes's avatar Joel Fernandes Committed by Alexandre Courbot
Browse files

gpu: nova-core: falcon: Add support to write firmware version 



This will be needed by both the GSP boot code as well as GSP resume code
in the sequencer.

Reviewed-by: default avatarLyude Paul <lyude@redhat.com>
Signed-off-by: default avatarJoel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: default avatarAlexandre Courbot <acourbot@nvidia.com>
Message-ID: <20251110-gsp_boot-v9-14-8ae4058e3c0e@nvidia.com>
parent bb58d1ae

drivers/gpu/nova-core/falcon.rs

+8 −0
Original line number Diff line number Diff line
@@ -621,4 +621,12 @@ pub(crate) fn is_riscv_active(&self, bar: &Bar0) -> bool { 
        let cpuctl = regs::NV_PRISCV_RISCV_CPUCTL::read(bar, &E::ID);

        cpuctl.active_stat()

    }



    /// Write the application version to the OS register.

    #[expect(dead_code)]

    pub(crate) fn write_os_version(&self, bar: &Bar0, app_version: u32) {

        regs::NV_PFALCON_FALCON_OS::default()

            .set_value(app_version)

            .write(bar, &E::ID);

    }

}

drivers/gpu/nova-core/regs.rs

+6 −0
Original line number Diff line number Diff line
@@ -230,6 +230,12 @@ pub(crate) fn vga_workspace_addr(self) -> Option<u64> { 
    31:0    value as u32;

});



// Used to store version information about the firmware running

// on the Falcon processor.

register!(NV_PFALCON_FALCON_OS @ PFalconBase[0x00000080] {

    31:0    value as u32;

});



register!(NV_PFALCON_FALCON_RM @ PFalconBase[0x00000084] {

    31:0    value as u32;

});