Starting from Turing, the driver is no longer responsible for initiating
DEVINIT when required as the GPU started loading a FW image from ROM and
executing DEVINIT itself after power-on.
However - we apparently still need to wait for it to complete.
This should correct some issues with runpm on some systems, where we get
control of the HW before it's been fully reinitialised after resume from
suspend.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230130223715.1831509-1-bskeggs@redhat.com
return ret;
}
+static int
+tu102_devinit_wait(struct nvkm_device *device)
+{
+ unsigned timeout = 50 + 2000;
+
+ do {
+ if (nvkm_rd32(device, 0x118128) & 0x00000001) {
+ if ((nvkm_rd32(device, 0x118234) & 0x000000ff) == 0xff)
+ return 0;
+ }
+
+ usleep_range(1000, 2000);
+ } while (timeout--);
+
+ return -ETIMEDOUT;
+}
+
int
tu102_devinit_post(struct nvkm_devinit *base, bool post)
{
struct nv50_devinit *init = nv50_devinit(base);
+ int ret;
+
+ ret = tu102_devinit_wait(init->base.subdev.device);
+ if (ret)
+ return ret;
+
gm200_devinit_preos(init, post);
return 0;
}