static int guc_wait_ucode(struct intel_guc *guc)
{
u32 status;
int ret;
/*
* Wait for the GuC to start up.
* NB: Docs recommend not using the interrupt for completion.
* Measurements indicate this should take no more than 20ms, so a
* timeout here indicates that the GuC has failed and is unusable.
* (Higher levels of the driver may decide to reset the GuC and
* attempt the ucode load again if this happens.)
*/
ret = wait_for(guc_ready(guc, &status), 100);
DRM_DEBUG_DRIVER("GuC status %#x\n", status);
if ((status & GS_BOOTROM_MASK) == GS_BOOTROM_RSA_FAILED) {
DRM_ERROR("GuC firmware signature verification failed\n");
ret = -ENOEXEC;
}
if (ret == 0 && !guc_xfer_completed(guc, &status)) {
DRM_ERROR("GuC is ready, but the xfer %08x is incomplete\n",
status);
ret = -ENXIO;
}
return ret;
}
static int guc_wait_ucode(struct intel_guc *guc)
{
u32 status;
int ret;
/*
* Wait for the GuC to start up.
* NB: Docs recommend not using the interrupt for completion.
* Measurements indicate this should take no more than 20ms, so a
* timeout here indicates that the GuC has failed and is unusable.
* (Higher levels of the driver will attempt to fall back to
* execlist mode if this happens.)
*/
ret = wait_for(guc_ready(guc, &status), 100);
DRM_DEBUG_DRIVER("GuC status %#x\n", status);
if ((status & GS_BOOTROM_MASK) == GS_BOOTROM_RSA_FAILED) {
DRM_ERROR("GuC firmware signature verification failed\n");
ret = -ENOEXEC;
}
return ret;
}
