mmc: sdhci-msm-ice: Add new sdhci host_op for updating ice config

Add new sdhci host_op for updating ice configuration while sending
request through cmdq. Adding provision for supporting the ice
context configuration for ICE HCI.

Change-Id: I0e7299cfb1064c117aa94fb2416cc5cc4f1ec5f6
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>

drivers/mmc/host/sdhci-msm-ice.c

@@ -312,6 +312,42 @@ int sdhci_msm_ice_cfg(struct sdhci_host *host, struct mmc_request *mrq,
 	return 0;
 }
 
+int sdhci_msm_ice_cmdq_cfg(struct sdhci_host *host,
+			struct mmc_request *mrq, u32 slot, u64 *ice_ctx)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_msm_host *msm_host = pltfm_host->priv;
+	int err = 0;
+	short key_index;
+	sector_t lba = 0;
+	unsigned int bypass = SDHCI_MSM_ICE_ENABLE_BYPASS;
+	struct request *req;
+
+	if (msm_host->ice.state != SDHCI_MSM_ICE_STATE_ACTIVE) {
+		pr_err("%s: ice is in invalid state %d\n",
+			mmc_hostname(host->mmc), msm_host->ice.state);
+		return -EINVAL;
+	}
+
+	WARN_ON(!mrq);
+	if (!mrq)
+		return -EINVAL;
+	req = mrq->req;
+	if (req) {
+		lba = req->__sector;
+		err = sdhci_msm_ice_get_cfg(msm_host, req, &bypass, &key_index);
+		if (err)
+			return err;
+		pr_debug("%s: %s: slot %d bypass %d key_index %d\n",
+				mmc_hostname(host->mmc),
+				(rq_data_dir(req) == WRITE) ? "WRITE" : "READ",
+				slot, bypass, key_index);
+	}
+
+	sdhci_msm_ice_update_cfg(host, lba, slot, bypass, key_index);
+	return 0;
+}
+
 int sdhci_msm_ice_reset(struct sdhci_host *host)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);

drivers/mmc/host/sdhci-msm-ice.h

@@ -99,6 +99,8 @@ int sdhci_msm_ice_init(struct sdhci_host *host);
 void sdhci_msm_ice_cfg_reset(struct sdhci_host *host, u32 slot);
 int sdhci_msm_ice_cfg(struct sdhci_host *host, struct mmc_request *mrq,
 			u32 slot);
+int sdhci_msm_ice_cmdq_cfg(struct sdhci_host *host,
+			struct mmc_request *mrq, u32 slot, u64 *ice_ctx);
 int sdhci_msm_ice_reset(struct sdhci_host *host);
 int sdhci_msm_ice_resume(struct sdhci_host *host);
 int sdhci_msm_ice_suspend(struct sdhci_host *host);
@@ -130,6 +132,11 @@ inline int sdhci_msm_ice_cfg(struct sdhci_host *host,
 {
 	return 0;
 }
+inline int sdhci_msm_ice_cmdq_cfg(struct sdhci_host *host,
+		struct mmc_request *mrq, u32 slot, u64 *ice_ctx)
+{
+	return 0;
+}
 inline int sdhci_msm_ice_reset(struct sdhci_host *host)
 {
 	return 0;

drivers/mmc/host/sdhci-msm.c

@@ -3997,6 +3997,7 @@ static unsigned int sdhci_msm_get_current_limit(struct sdhci_host *host)
 
 static struct sdhci_ops sdhci_msm_ops = {
 	.crypto_engine_cfg = sdhci_msm_ice_cfg,
+	.crypto_engine_cmdq_cfg = sdhci_msm_ice_cmdq_cfg,
 	.crypto_cfg_reset = sdhci_msm_ice_cfg_reset,
 	.crypto_engine_reset = sdhci_msm_ice_reset,
 	.set_uhs_signaling = sdhci_msm_set_uhs_signaling,

drivers/mmc/host/sdhci.c

@@ -3635,11 +3635,31 @@ static int sdhci_cmdq_crypto_cfg(struct mmc_host *mmc,
 		struct mmc_request *mrq, u32 slot)
 {
 	struct sdhci_host *host = mmc_priv(mmc);
+	int err = 0;
 
 	if (!host->is_crypto_en)
 		return 0;
 
-	return sdhci_crypto_cfg(host, mrq, slot);
+	if (host->crypto_reset_reqd && host->ops->crypto_engine_reset) {
+		err = host->ops->crypto_engine_reset(host);
+		if (err) {
+			pr_err("%s: crypto reset failed\n",
+					mmc_hostname(host->mmc));
+			goto out;
+		}
+		host->crypto_reset_reqd = false;
+	}
+
+	if (host->ops->crypto_engine_cmdq_cfg) {
+		err = host->ops->crypto_engine_cmdq_cfg(host, mrq, slot, NULL);
+		if (err) {
+			pr_err("%s: failed to configure crypto\n",
+					mmc_hostname(host->mmc));
+			goto out;
+		}
+	}
+out:
+	return err;
 }
 
 static void sdhci_cmdq_crypto_cfg_reset(struct mmc_host *mmc, unsigned int slot)

drivers/mmc/host/sdhci.h

@@ -657,6 +657,8 @@ struct sdhci_ops {
 	int	(*platform_execute_tuning)(struct sdhci_host *host, u32 opcode);
 	int	(*crypto_engine_cfg)(struct sdhci_host *host,
 				struct mmc_request *mrq, u32 slot);
+	int	(*crypto_engine_cmdq_cfg)(struct sdhci_host *host,
+			struct mmc_request *mrq, u32 slot, u64 *ice_ctx);
 	int	(*crypto_engine_reset)(struct sdhci_host *host);
 	void	(*crypto_cfg_reset)(struct sdhci_host *host, unsigned int slot);
 	void	(*set_uhs_signaling)(struct sdhci_host *host, unsigned int uhs);