16 #include <linux/mmc/mmc.h>
17 #include <linux/mmc/host.h>
18 #include <linux/mmc/card.h>
50 		(cq_host->mmc->max_segs * tag *  in get_trans_desc_dma()
57 		(cq_host->trans_desc_len * cq_host->mmc->max_segs * tag);  in get_trans_desc()
72 	if (tag == DCMD_SLOT && (cq_host->mmc->caps2 & MMC_CAP2_CQE_DCMD)) {  in setup_trans_desc()
99 	pr_err("%s: " DRV_NAME ": " f, mmc_hostname(mmc), ## x)
103 	struct mmc_host *mmc = cq_host->mmc;  in cqhci_dumpregs()  local
142 		cq_host->ops->dumpregs(mmc);  in cqhci_dumpregs()
196 	cq_host->data_size = cq_host->trans_desc_len * cq_host->mmc->max_segs *  in cqhci_host_alloc_tdl()
197 		cq_host->mmc->cqe_qdepth;  in cqhci_host_alloc_tdl()
200 		 mmc_hostname(cq_host->mmc), cq_host->desc_size, cq_host->data_size,  in cqhci_host_alloc_tdl()
209 	cq_host->desc_base = dmam_alloc_coherent(mmc_dev(cq_host->mmc),  in cqhci_host_alloc_tdl()
216 	cq_host->trans_desc_base = dmam_alloc_coherent(mmc_dev(cq_host->mmc),  in cqhci_host_alloc_tdl()
221 		dmam_free_coherent(mmc_dev(cq_host->mmc), cq_host->desc_size,  in cqhci_host_alloc_tdl()
230 		 mmc_hostname(cq_host->mmc), cq_host->desc_base, cq_host->trans_desc_base,  in cqhci_host_alloc_tdl()
242 	struct mmc_host *mmc = cq_host->mmc;  in __cqhci_enable()  local
255 	if (mmc->caps2 & MMC_CAP2_CQE_DCMD)  in __cqhci_enable()
276 	mmc->cqe_on = true;  in __cqhci_enable()
279 		cq_host->ops->enable(mmc);  in __cqhci_enable()
297 	cq_host->mmc->cqe_on = false;  in __cqhci_disable()
302 int cqhci_deactivate(struct mmc_host *mmc)  in cqhci_deactivate()  argument
304 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_deactivate()
313 int cqhci_resume(struct mmc_host *mmc)  in cqhci_resume()  argument
320 static int cqhci_enable(struct mmc_host *mmc, struct mmc_card *card)  in cqhci_enable()  argument
322 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_enable()
336 		       mmc_hostname(mmc), err);  in cqhci_enable()
358 static void cqhci_off(struct mmc_host *mmc)  in cqhci_off()  argument
360 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_off()
364 	if (!cq_host->enabled || !mmc->cqe_on || cq_host->recovery_halt)  in cqhci_off()
368 		cq_host->ops->disable(mmc, false);  in cqhci_off()
375 		pr_err("%s: cqhci: CQE stuck on\n", mmc_hostname(mmc));  in cqhci_off()
377 		pr_debug("%s: cqhci: CQE off\n", mmc_hostname(mmc));  in cqhci_off()
380 		cq_host->ops->post_disable(mmc);  in cqhci_off()
382 	mmc->cqe_on = false;  in cqhci_off()
385 static void cqhci_disable(struct mmc_host *mmc)  in cqhci_disable()  argument
387 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_disable()
392 	cqhci_off(mmc);  in cqhci_disable()
396 	dmam_free_coherent(mmc_dev(mmc), cq_host->data_size,  in cqhci_disable()
400 	dmam_free_coherent(mmc_dev(mmc), cq_host->desc_size,  in cqhci_disable()
507 static void cqhci_prep_dcmd_desc(struct mmc_host *mmc,  in cqhci_prep_dcmd_desc()  argument
515 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_prep_dcmd_desc()
541 		cq_host->ops->update_dcmd_desc(mmc, mrq, &data);  in cqhci_prep_dcmd_desc()
545 		 mmc_hostname(mmc), mrq->cmd->opcode, timing, resp_type);  in cqhci_prep_dcmd_desc()
567 static int cqhci_request(struct mmc_host *mmc, struct mmc_request *mrq)  in cqhci_request()  argument
573 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_request()
577 		pr_err("%s: cqhci: not enabled\n", mmc_hostname(mmc));  in cqhci_request()
585 	if (!mmc->cqe_on) {  in cqhci_request()
587 			cq_host->ops->pre_enable(mmc);  in cqhci_request()
590 		mmc->cqe_on = true;  in cqhci_request()
591 		pr_debug("%s: cqhci: CQE on\n", mmc_hostname(mmc));  in cqhci_request()
594 			       mmc_hostname(mmc));  in cqhci_request()
597 			cq_host->ops->enable(mmc);  in cqhci_request()
607 			       mmc_hostname(mmc), err);  in cqhci_request()
611 		cqhci_prep_dcmd_desc(mmc, mrq);  in cqhci_request()
630 			 mmc_hostname(mmc), tag);  in cqhci_request()
635 		cqhci_post_req(mmc, mrq);  in cqhci_request()
640 static void cqhci_recovery_needed(struct mmc_host *mmc, struct mmc_request *mrq,  in cqhci_recovery_needed()  argument
643 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_recovery_needed()
647 		pr_debug("%s: cqhci: recovery needed\n", mmc_hostname(mmc));  in cqhci_recovery_needed()
668 static void cqhci_error_irq(struct mmc_host *mmc, u32 status, int cmd_error,  in cqhci_error_irq()  argument
671 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_error_irq()
681 		 mmc_hostname(mmc), status, cmd_error, data_error, terri);  in cqhci_error_irq()
689 			  mmc_hostname(mmc), status, cmd_error, data_error,  in cqhci_error_irq()
699 			cqhci_recovery_needed(mmc, slot->mrq, true);  in cqhci_error_irq()
708 			cqhci_recovery_needed(mmc, slot->mrq, true);  in cqhci_error_irq()
722 			cqhci_recovery_needed(mmc, slot->mrq, true);  in cqhci_error_irq()
731 static void cqhci_finish_mrq(struct mmc_host *mmc, unsigned int tag)  in cqhci_finish_mrq()  argument
733 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_finish_mrq()
740 			  mmc_hostname(mmc), tag);  in cqhci_finish_mrq()
762 	mmc_cqe_request_done(mmc, mrq);  in cqhci_finish_mrq()
765 irqreturn_t cqhci_irq(struct mmc_host *mmc, u32 intmask, int cmd_error,  in cqhci_irq()  argument
770 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_irq()
775 	pr_debug("%s: cqhci: IRQ status: 0x%08x\n", mmc_hostname(mmc), status);  in cqhci_irq()
778 		cqhci_error_irq(mmc, status, cmd_error, data_error);  in cqhci_irq()
785 			 mmc_hostname(mmc), comp_status);  in cqhci_irq()
792 				 mmc_hostname(mmc), tag);  in cqhci_irq()
793 			cqhci_finish_mrq(mmc, tag);  in cqhci_irq()
828 static int cqhci_wait_for_idle(struct mmc_host *mmc)  in cqhci_wait_for_idle()  argument
830 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_wait_for_idle()
838 static bool cqhci_timeout(struct mmc_host *mmc, struct mmc_request *mrq,  in cqhci_timeout()  argument
841 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_timeout()
851 		cqhci_recovery_needed(mmc, mrq, false);  in cqhci_timeout()
858 		       mmc_hostname(mmc), tag);  in cqhci_timeout()
870 static bool cqhci_clear_all_tasks(struct mmc_host *mmc, unsigned int timeout)  in cqhci_clear_all_tasks()  argument
872 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_clear_all_tasks()
891 			 mmc_hostname(mmc));  in cqhci_clear_all_tasks()
901 static bool cqhci_halt(struct mmc_host *mmc, unsigned int timeout)  in cqhci_halt()  argument
903 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_halt()
924 		pr_debug("%s: cqhci: Failed to halt\n", mmc_hostname(mmc));  in cqhci_halt()
937 static void cqhci_recovery_start(struct mmc_host *mmc)  in cqhci_recovery_start()  argument
939 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_recovery_start()
941 	pr_debug("%s: cqhci: %s\n", mmc_hostname(mmc), __func__);  in cqhci_recovery_start()
945 	cqhci_halt(mmc, CQHCI_START_HALT_TIMEOUT);  in cqhci_recovery_start()
948 		cq_host->ops->disable(mmc, true);  in cqhci_recovery_start()
950 	mmc->cqe_on = false;  in cqhci_recovery_start()
989 	mmc_cqe_request_done(cq_host->mmc, mrq);  in cqhci_recover_mrq()
1010 static void cqhci_recovery_finish(struct mmc_host *mmc)  in cqhci_recovery_finish()  argument
1012 	struct cqhci_host *cq_host = mmc->cqe_private;  in cqhci_recovery_finish()
1017 	pr_debug("%s: cqhci: %s\n", mmc_hostname(mmc), __func__);  in cqhci_recovery_finish()
1021 	ok = cqhci_halt(mmc, CQHCI_FINISH_HALT_TIMEOUT);  in cqhci_recovery_finish()
1023 	if (!cqhci_clear_all_tasks(mmc, CQHCI_CLEAR_TIMEOUT))  in cqhci_recovery_finish()
1033 		pr_debug("%s: cqhci: disable / re-enable\n", mmc_hostname(mmc));  in cqhci_recovery_finish()
1040 		ok = cqhci_halt(mmc, CQHCI_FINISH_HALT_TIMEOUT);  in cqhci_recovery_finish()
1041 		if (!cqhci_clear_all_tasks(mmc, CQHCI_CLEAR_TIMEOUT))  in cqhci_recovery_finish()
1053 	mmc->cqe_on = false;  in cqhci_recovery_finish()
1063 	pr_debug("%s: cqhci: recovery done\n", mmc_hostname(mmc));  in cqhci_recovery_finish()
1119 int cqhci_init(struct cqhci_host *cq_host, struct mmc_host *mmc,  in cqhci_init()  argument
1125 	cq_host->mmc = mmc;  in cqhci_init()
1126 	cq_host->mmc->cqe_private = cq_host;  in cqhci_init()
1131 	mmc->cqe_ops = &cqhci_cqe_ops;  in cqhci_init()
1133 	mmc->cqe_qdepth = NUM_SLOTS;  in cqhci_init()
1134 	if (mmc->caps2 & MMC_CAP2_CQE_DCMD)  in cqhci_init()
1135 		mmc->cqe_qdepth -= 1;  in cqhci_init()
1137 	cq_host->slot = devm_kcalloc(mmc_dev(mmc), cq_host->num_slots,  in cqhci_init()
1150 		mmc_hostname(mmc), cqhci_ver_major(cq_host),  in cqhci_init()
1157 	       mmc_hostname(mmc), cqhci_ver_major(cq_host),  in cqhci_init()