16 #include <linux/mmc/mmc.h>
17 #include <linux/mmc/host.h>
18 #include <linux/mmc/card.h>
55 	return cq_host->trans_desc_len * cq_host->mmc->max_segs * tag;  in get_trans_desc_offset()
84 	if (tag == DCMD_SLOT && (cq_host->mmc->caps2 & MMC_CAP2_CQE_DCMD)) {  in setup_trans_desc()
111 	pr_err("%s: " DRV_NAME ": " f, mmc_hostname(mmc), ## x)
115 	struct mmc_host *mmc = cq_host->mmc;  in cqhci_dumpregs()  local
154 		cq_host->ops->dumpregs(mmc);  in cqhci_dumpregs()
208 	cq_host->data_size = get_trans_desc_offset(cq_host, cq_host->mmc->cqe_qdepth);  in cqhci_host_alloc_tdl()
211 		 mmc_hostname(cq_host->mmc), cq_host->desc_size, cq_host->data_size,  in cqhci_host_alloc_tdl()
220 	cq_host->desc_base = dmam_alloc_coherent(mmc_dev(cq_host->mmc),  in cqhci_host_alloc_tdl()
227 	cq_host->trans_desc_base = dmam_alloc_coherent(mmc_dev(cq_host->mmc),  in cqhci_host_alloc_tdl()
232 		dmam_free_coherent(mmc_dev(cq_host->mmc), cq_host->desc_size,  in cqhci_host_alloc_tdl()
241 		 mmc_hostname(cq_host->mmc), cq_host->desc_base, cq_host->trans_desc_base,  in cqhci_host_alloc_tdl()
253 	struct mmc_host *mmc = cq_host->mmc;  in __cqhci_enable()  local
266 	if (mmc->caps2 & MMC_CAP2_CQE_DCMD)  in __cqhci_enable()
272 	if (mmc->caps2 & MMC_CAP2_CRYPTO)  in __cqhci_enable()
293 	mmc->cqe_on = true;  in __cqhci_enable()
296 		cq_host->ops->enable(mmc);  in __cqhci_enable()
314 	cq_host->mmc->cqe_on = false;  in __cqhci_disable()
319 int cqhci_deactivate(struct mmc_host *mmc)  in cqhci_deactivate()  argument
321 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_deactivate()
330 int cqhci_resume(struct mmc_host *mmc)  in cqhci_resume()  argument
337 static int cqhci_enable(struct mmc_host *mmc, struct mmc_card *card)  in cqhci_enable()  argument
339 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_enable()
353 		       mmc_hostname(mmc), err);  in cqhci_enable()
375 static void cqhci_off(struct mmc_host *mmc)  in cqhci_off()  argument
377 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_off()
381 	if (!cq_host->enabled || !mmc->cqe_on || cq_host->recovery_halt)  in cqhci_off()
385 		cq_host->ops->disable(mmc, false);  in cqhci_off()
392 		pr_err("%s: cqhci: CQE stuck on\n", mmc_hostname(mmc));  in cqhci_off()
394 		pr_debug("%s: cqhci: CQE off\n", mmc_hostname(mmc));  in cqhci_off()
397 		cq_host->ops->post_disable(mmc);  in cqhci_off()
399 	mmc->cqe_on = false;  in cqhci_off()
402 static void cqhci_disable(struct mmc_host *mmc)  in cqhci_disable()  argument
404 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_disable()
409 	cqhci_off(mmc);  in cqhci_disable()
413 	dmam_free_coherent(mmc_dev(mmc), cq_host->data_size,  in cqhci_disable()
417 	dmam_free_coherent(mmc_dev(mmc), cq_host->desc_size,  in cqhci_disable()
542 static void cqhci_prep_dcmd_desc(struct mmc_host *mmc,  in cqhci_prep_dcmd_desc()  argument
550 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_prep_dcmd_desc()
576 		cq_host->ops->update_dcmd_desc(mmc, mrq, &data);  in cqhci_prep_dcmd_desc()
580 		 mmc_hostname(mmc), mrq->cmd->opcode, timing, resp_type);  in cqhci_prep_dcmd_desc()
602 static int cqhci_request(struct mmc_host *mmc, struct mmc_request *mrq)  in cqhci_request()  argument
606 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_request()
610 		pr_err("%s: cqhci: not enabled\n", mmc_hostname(mmc));  in cqhci_request()
618 	if (!mmc->cqe_on) {  in cqhci_request()
620 			cq_host->ops->pre_enable(mmc);  in cqhci_request()
623 		mmc->cqe_on = true;  in cqhci_request()
624 		pr_debug("%s: cqhci: CQE on\n", mmc_hostname(mmc));  in cqhci_request()
627 			       mmc_hostname(mmc));  in cqhci_request()
630 			cq_host->ops->enable(mmc);  in cqhci_request()
639 			       mmc_hostname(mmc), err);  in cqhci_request()
643 		cqhci_prep_dcmd_desc(mmc, mrq);  in cqhci_request()
662 			 mmc_hostname(mmc), tag);  in cqhci_request()
667 		cqhci_post_req(mmc, mrq);  in cqhci_request()
672 static void cqhci_recovery_needed(struct mmc_host *mmc, struct mmc_request *mrq,  in cqhci_recovery_needed()  argument
675 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_recovery_needed()
679 		pr_debug("%s: cqhci: recovery needed\n", mmc_hostname(mmc));  in cqhci_recovery_needed()
700 static void cqhci_error_irq(struct mmc_host *mmc, u32 status, int cmd_error,  in cqhci_error_irq()  argument
703 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_error_irq()
714 		 mmc_hostname(mmc), status, cmd_error, data_error, terri);  in cqhci_error_irq()
722 			  mmc_hostname(mmc), status, cmd_error, data_error,  in cqhci_error_irq()
732 			cqhci_recovery_needed(mmc, slot->mrq, true);  in cqhci_error_irq()
741 			cqhci_recovery_needed(mmc, slot->mrq, true);  in cqhci_error_irq()
757 			  mmc_hostname(mmc), status, tdpe);  in cqhci_error_irq()
765 			cqhci_recovery_needed(mmc, slot->mrq, true);  in cqhci_error_irq()
779 			cqhci_recovery_needed(mmc, slot->mrq, true);  in cqhci_error_irq()
788 static void cqhci_finish_mrq(struct mmc_host *mmc, unsigned int tag)  in cqhci_finish_mrq()  argument
790 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_finish_mrq()
797 			  mmc_hostname(mmc), tag);  in cqhci_finish_mrq()
819 	mmc_cqe_request_done(mmc, mrq);  in cqhci_finish_mrq()
822 irqreturn_t cqhci_irq(struct mmc_host *mmc, u32 intmask, int cmd_error,  in cqhci_irq()  argument
827 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_irq()
832 	pr_debug("%s: cqhci: IRQ status: 0x%08x\n", mmc_hostname(mmc), status);  in cqhci_irq()
837 			mmc_debugfs_err_stats_inc(mmc, MMC_ERR_CMDQ_RED);  in cqhci_irq()
839 			mmc_debugfs_err_stats_inc(mmc, MMC_ERR_CMDQ_GCE);  in cqhci_irq()
841 			mmc_debugfs_err_stats_inc(mmc, MMC_ERR_CMDQ_ICCE);  in cqhci_irq()
842 		cqhci_error_irq(mmc, status, cmd_error, data_error);  in cqhci_irq()
850 			 mmc_hostname(mmc), comp_status);  in cqhci_irq()
857 				 mmc_hostname(mmc), tag);  in cqhci_irq()
858 			cqhci_finish_mrq(mmc, tag);  in cqhci_irq()
893 static int cqhci_wait_for_idle(struct mmc_host *mmc)  in cqhci_wait_for_idle()  argument
895 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_wait_for_idle()
903 static bool cqhci_timeout(struct mmc_host *mmc, struct mmc_request *mrq,  in cqhci_timeout()  argument
906 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_timeout()
916 		cqhci_recovery_needed(mmc, mrq, false);  in cqhci_timeout()
923 		       mmc_hostname(mmc), tag, cq_host->qcnt);  in cqhci_timeout()
935 static bool cqhci_clear_all_tasks(struct mmc_host *mmc, unsigned int timeout)  in cqhci_clear_all_tasks()  argument
937 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_clear_all_tasks()
956 			mmc_hostname(mmc));  in cqhci_clear_all_tasks()
961 static bool cqhci_halt(struct mmc_host *mmc, unsigned int timeout)  in cqhci_halt()  argument
963 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_halt()
984 		pr_warn("%s: cqhci: Failed to halt\n", mmc_hostname(mmc));  in cqhci_halt()
997 static void cqhci_recovery_start(struct mmc_host *mmc)  in cqhci_recovery_start()  argument
999 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_recovery_start()
1001 	pr_debug("%s: cqhci: %s\n", mmc_hostname(mmc), __func__);  in cqhci_recovery_start()
1005 	cqhci_halt(mmc, CQHCI_START_HALT_TIMEOUT);  in cqhci_recovery_start()
1008 		cq_host->ops->disable(mmc, true);  in cqhci_recovery_start()
1010 	mmc->cqe_on = false;  in cqhci_recovery_start()
1049 	mmc_cqe_request_done(cq_host->mmc, mrq);  in cqhci_recover_mrq()
1070 static void cqhci_recovery_finish(struct mmc_host *mmc)  in cqhci_recovery_finish()  argument
1072 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_recovery_finish()
1077 	pr_debug("%s: cqhci: %s\n", mmc_hostname(mmc), __func__);  in cqhci_recovery_finish()
1081 	ok = cqhci_halt(mmc, CQHCI_FINISH_HALT_TIMEOUT);  in cqhci_recovery_finish()
1089 	if (!cqhci_clear_all_tasks(mmc, CQHCI_CLEAR_TIMEOUT))  in cqhci_recovery_finish()
1101 	cqhci_halt(mmc, CQHCI_FINISH_HALT_TIMEOUT);  in cqhci_recovery_finish()
1104 		cqhci_clear_all_tasks(mmc, CQHCI_CLEAR_TIMEOUT);  in cqhci_recovery_finish()
1113 	mmc->cqe_on = false;  in cqhci_recovery_finish()
1123 	pr_debug("%s: cqhci: recovery done\n", mmc_hostname(mmc));  in cqhci_recovery_finish()
1179 int cqhci_init(struct cqhci_host *cq_host, struct mmc_host *mmc,  in cqhci_init()  argument
1185 	cq_host->mmc = mmc;  in cqhci_init()
1186 	cq_host->mmc->cqe_private = cq_host;  in cqhci_init()
1191 	mmc->cqe_ops = &cqhci_cqe_ops;  in cqhci_init()
1193 	mmc->cqe_qdepth = NUM_SLOTS;  in cqhci_init()
1194 	if (mmc->caps2 & MMC_CAP2_CQE_DCMD)  in cqhci_init()
1195 		mmc->cqe_qdepth -= 1;  in cqhci_init()
1197 	cq_host->slot = devm_kcalloc(mmc_dev(mmc), cq_host->num_slots,  in cqhci_init()
1207 		       mmc_hostname(mmc));  in cqhci_init()
1217 		mmc_hostname(mmc), cqhci_ver_major(cq_host),  in cqhci_init()
1224 	       mmc_hostname(mmc), cqhci_ver_major(cq_host),  in cqhci_init()