Lines Matching refs:ibmvtpm
107 struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev); in tpm_ibmvtpm_recv() local
110 if (!ibmvtpm->rtce_buf) { in tpm_ibmvtpm_recv()
111 dev_err(ibmvtpm->dev, "ibmvtpm device is not ready\n"); in tpm_ibmvtpm_recv()
115 len = ibmvtpm->res_len; in tpm_ibmvtpm_recv()
118 dev_err(ibmvtpm->dev, in tpm_ibmvtpm_recv()
124 spin_lock(&ibmvtpm->rtce_lock); in tpm_ibmvtpm_recv()
125 memcpy((void *)buf, (void *)ibmvtpm->rtce_buf, len); in tpm_ibmvtpm_recv()
126 memset(ibmvtpm->rtce_buf, 0, len); in tpm_ibmvtpm_recv()
127 ibmvtpm->res_len = 0; in tpm_ibmvtpm_recv()
128 spin_unlock(&ibmvtpm->rtce_lock); in tpm_ibmvtpm_recv()
140 static int ibmvtpm_crq_send_init(struct ibmvtpm_dev *ibmvtpm) in ibmvtpm_crq_send_init() argument
144 rc = ibmvtpm_send_crq_word(ibmvtpm->vdev, INIT_CRQ_CMD); in ibmvtpm_crq_send_init()
146 dev_err(ibmvtpm->dev, in ibmvtpm_crq_send_init()
162 struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev); in tpm_ibmvtpm_resume() local
169 ibmvtpm->vdev->unit_address); in tpm_ibmvtpm_resume()
177 rc = vio_enable_interrupts(ibmvtpm->vdev); in tpm_ibmvtpm_resume()
183 rc = ibmvtpm_crq_send_init(ibmvtpm); in tpm_ibmvtpm_resume()
202 struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev); in tpm_ibmvtpm_send() local
206 if (!ibmvtpm->rtce_buf) { in tpm_ibmvtpm_send()
207 dev_err(ibmvtpm->dev, "ibmvtpm device is not ready\n"); in tpm_ibmvtpm_send()
211 if (count > ibmvtpm->rtce_size) { in tpm_ibmvtpm_send()
212 dev_err(ibmvtpm->dev, in tpm_ibmvtpm_send()
214 count, ibmvtpm->rtce_size); in tpm_ibmvtpm_send()
218 if (ibmvtpm->tpm_processing_cmd) { in tpm_ibmvtpm_send()
219 dev_info(ibmvtpm->dev, in tpm_ibmvtpm_send()
222 sig = wait_event_interruptible(ibmvtpm->wq, !ibmvtpm->tpm_processing_cmd); in tpm_ibmvtpm_send()
227 spin_lock(&ibmvtpm->rtce_lock); in tpm_ibmvtpm_send()
228 ibmvtpm->res_len = 0; in tpm_ibmvtpm_send()
229 memcpy((void *)ibmvtpm->rtce_buf, (void *)buf, count); in tpm_ibmvtpm_send()
235 ibmvtpm->tpm_processing_cmd = 1; in tpm_ibmvtpm_send()
238 rc = ibmvtpm_send_crq(ibmvtpm->vdev, in tpm_ibmvtpm_send()
240 count, ibmvtpm->rtce_dma_handle); in tpm_ibmvtpm_send()
248 tpm_ibmvtpm_resume(ibmvtpm->dev); in tpm_ibmvtpm_send()
252 dev_err(ibmvtpm->dev, "tpm_ibmvtpm_send failed rc=%d\n", rc); in tpm_ibmvtpm_send()
253 ibmvtpm->tpm_processing_cmd = 0; in tpm_ibmvtpm_send()
256 spin_unlock(&ibmvtpm->rtce_lock); in tpm_ibmvtpm_send()
267 struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev); in tpm_ibmvtpm_status() local
269 return ibmvtpm->tpm_processing_cmd; in tpm_ibmvtpm_status()
281 static int ibmvtpm_crq_get_rtce_size(struct ibmvtpm_dev *ibmvtpm) in ibmvtpm_crq_get_rtce_size() argument
285 rc = ibmvtpm_send_crq(ibmvtpm->vdev, in ibmvtpm_crq_get_rtce_size()
288 dev_err(ibmvtpm->dev, in ibmvtpm_crq_get_rtce_size()
304 static int ibmvtpm_crq_get_version(struct ibmvtpm_dev *ibmvtpm) in ibmvtpm_crq_get_version() argument
308 rc = ibmvtpm_send_crq(ibmvtpm->vdev, in ibmvtpm_crq_get_version()
311 dev_err(ibmvtpm->dev, in ibmvtpm_crq_get_version()
325 static int ibmvtpm_crq_send_init_complete(struct ibmvtpm_dev *ibmvtpm) in ibmvtpm_crq_send_init_complete() argument
329 rc = ibmvtpm_send_crq_word(ibmvtpm->vdev, INIT_CRQ_COMP_CMD); in ibmvtpm_crq_send_init_complete()
331 dev_err(ibmvtpm->dev, in ibmvtpm_crq_send_init_complete()
346 struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev); in tpm_ibmvtpm_remove() local
351 free_irq(vdev->irq, ibmvtpm); in tpm_ibmvtpm_remove()
359 dma_unmap_single(ibmvtpm->dev, ibmvtpm->crq_dma_handle, in tpm_ibmvtpm_remove()
361 free_page((unsigned long)ibmvtpm->crq_queue.crq_addr); in tpm_ibmvtpm_remove()
363 if (ibmvtpm->rtce_buf) { in tpm_ibmvtpm_remove()
364 dma_unmap_single(ibmvtpm->dev, ibmvtpm->rtce_dma_handle, in tpm_ibmvtpm_remove()
365 ibmvtpm->rtce_size, DMA_BIDIRECTIONAL); in tpm_ibmvtpm_remove()
366 kfree(ibmvtpm->rtce_buf); in tpm_ibmvtpm_remove()
369 kfree(ibmvtpm); in tpm_ibmvtpm_remove()
386 struct ibmvtpm_dev *ibmvtpm; in tpm_ibmvtpm_get_desired_dma() local
394 ibmvtpm = dev_get_drvdata(&chip->dev); in tpm_ibmvtpm_get_desired_dma()
398 return CRQ_RES_BUF_SIZE + ibmvtpm->rtce_size; in tpm_ibmvtpm_get_desired_dma()
410 struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev); in tpm_ibmvtpm_suspend() local
413 rc = ibmvtpm_send_crq(ibmvtpm->vdev, in tpm_ibmvtpm_suspend()
416 dev_err(ibmvtpm->dev, in tpm_ibmvtpm_suspend()
431 static int ibmvtpm_reset_crq(struct ibmvtpm_dev *ibmvtpm) in ibmvtpm_reset_crq() argument
439 ibmvtpm->vdev->unit_address); in ibmvtpm_reset_crq()
442 memset(ibmvtpm->crq_queue.crq_addr, 0, CRQ_RES_BUF_SIZE); in ibmvtpm_reset_crq()
443 ibmvtpm->crq_queue.index = 0; in ibmvtpm_reset_crq()
445 return plpar_hcall_norets(H_REG_CRQ, ibmvtpm->vdev->unit_address, in ibmvtpm_reset_crq()
446 ibmvtpm->crq_dma_handle, CRQ_RES_BUF_SIZE); in ibmvtpm_reset_crq()
476 static struct ibmvtpm_crq *ibmvtpm_crq_get_next(struct ibmvtpm_dev *ibmvtpm) in ibmvtpm_crq_get_next() argument
478 struct ibmvtpm_crq_queue *crq_q = &ibmvtpm->crq_queue; in ibmvtpm_crq_get_next()
498 struct ibmvtpm_dev *ibmvtpm) in ibmvtpm_crq_process() argument
506 dev_info(ibmvtpm->dev, "CRQ initialized\n"); in ibmvtpm_crq_process()
507 rc = ibmvtpm_crq_send_init_complete(ibmvtpm); in ibmvtpm_crq_process()
509 dev_err(ibmvtpm->dev, "Unable to send CRQ init complete rc=%d\n", rc); in ibmvtpm_crq_process()
512 dev_info(ibmvtpm->dev, in ibmvtpm_crq_process()
516 dev_err(ibmvtpm->dev, "Unknown crq message type: %d\n", crq->msg); in ibmvtpm_crq_process()
523 dev_err(ibmvtpm->dev, "Invalid rtce size\n"); in ibmvtpm_crq_process()
526 ibmvtpm->rtce_size = be16_to_cpu(crq->len); in ibmvtpm_crq_process()
527 ibmvtpm->rtce_buf = kmalloc(ibmvtpm->rtce_size, in ibmvtpm_crq_process()
529 if (!ibmvtpm->rtce_buf) { in ibmvtpm_crq_process()
530 dev_err(ibmvtpm->dev, "Failed to allocate memory for rtce buffer\n"); in ibmvtpm_crq_process()
534 ibmvtpm->rtce_dma_handle = dma_map_single(ibmvtpm->dev, in ibmvtpm_crq_process()
535 ibmvtpm->rtce_buf, ibmvtpm->rtce_size, in ibmvtpm_crq_process()
538 if (dma_mapping_error(ibmvtpm->dev, in ibmvtpm_crq_process()
539 ibmvtpm->rtce_dma_handle)) { in ibmvtpm_crq_process()
540 kfree(ibmvtpm->rtce_buf); in ibmvtpm_crq_process()
541 ibmvtpm->rtce_buf = NULL; in ibmvtpm_crq_process()
542 dev_err(ibmvtpm->dev, "Failed to dma map rtce buffer\n"); in ibmvtpm_crq_process()
547 ibmvtpm->vtpm_version = be32_to_cpu(crq->data); in ibmvtpm_crq_process()
551 ibmvtpm->res_len = be16_to_cpu(crq->len); in ibmvtpm_crq_process()
552 ibmvtpm->tpm_processing_cmd = 0; in ibmvtpm_crq_process()
553 wake_up_interruptible(&ibmvtpm->wq); in ibmvtpm_crq_process()
573 struct ibmvtpm_dev *ibmvtpm = (struct ibmvtpm_dev *) vtpm_instance; in ibmvtpm_interrupt() local
580 while ((crq = ibmvtpm_crq_get_next(ibmvtpm)) != NULL) { in ibmvtpm_interrupt()
581 ibmvtpm_crq_process(crq, ibmvtpm); in ibmvtpm_interrupt()
582 wake_up_interruptible(&ibmvtpm->crq_queue.wq); in ibmvtpm_interrupt()
603 struct ibmvtpm_dev *ibmvtpm; in tpm_ibmvtpm_probe() local
613 ibmvtpm = kzalloc(sizeof(struct ibmvtpm_dev), GFP_KERNEL); in tpm_ibmvtpm_probe()
614 if (!ibmvtpm) { in tpm_ibmvtpm_probe()
619 ibmvtpm->dev = dev; in tpm_ibmvtpm_probe()
620 ibmvtpm->vdev = vio_dev; in tpm_ibmvtpm_probe()
622 crq_q = &ibmvtpm->crq_queue; in tpm_ibmvtpm_probe()
631 ibmvtpm->crq_dma_handle = dma_map_single(dev, crq_q->crq_addr, in tpm_ibmvtpm_probe()
635 if (dma_mapping_error(dev, ibmvtpm->crq_dma_handle)) { in tpm_ibmvtpm_probe()
641 ibmvtpm->crq_dma_handle, CRQ_RES_BUF_SIZE); in tpm_ibmvtpm_probe()
643 rc = ibmvtpm_reset_crq(ibmvtpm); in tpm_ibmvtpm_probe()
651 tpm_ibmvtpm_driver_name, ibmvtpm); in tpm_ibmvtpm_probe()
663 init_waitqueue_head(&ibmvtpm->wq); in tpm_ibmvtpm_probe()
667 dev_set_drvdata(&chip->dev, ibmvtpm); in tpm_ibmvtpm_probe()
669 spin_lock_init(&ibmvtpm->rtce_lock); in tpm_ibmvtpm_probe()
671 rc = ibmvtpm_crq_send_init(ibmvtpm); in tpm_ibmvtpm_probe()
675 rc = ibmvtpm_crq_get_version(ibmvtpm); in tpm_ibmvtpm_probe()
679 rc = ibmvtpm_crq_get_rtce_size(ibmvtpm); in tpm_ibmvtpm_probe()
683 if (!wait_event_timeout(ibmvtpm->crq_queue.wq, in tpm_ibmvtpm_probe()
684 ibmvtpm->rtce_buf != NULL, in tpm_ibmvtpm_probe()
711 dma_unmap_single(dev, ibmvtpm->crq_dma_handle, CRQ_RES_BUF_SIZE, in tpm_ibmvtpm_probe()
714 if (ibmvtpm) { in tpm_ibmvtpm_probe()
717 kfree(ibmvtpm); in tpm_ibmvtpm_probe()