Merge tag 'soc-fsl-next-v5.1-4' of...

Merge tag 'soc-fsl-next-v5.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers

NXP/FSL SoC driver updates for v5.1 take4

DPIO driver
- Add support for cache stashing and enable it in dpaa2-eth driver

GUTS driver
- Make fsl_guts_get_svr() API internal in favor of more generic
  soc_device_match()

* tag 'soc-fsl-next-v5.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  dpaa2-eth: configure the cache stashing amount on a queue
  soc: fsl: dpio: configure cache stashing destination
  soc: fsl: dpio: enable frame data cache stashing per software portal
  soc: fsl: guts: make fsl_guts_get_svr() static
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c

@@ -2303,9 +2303,14 @@ static int setup_rx_flow(struct dpaa2_eth_priv *priv,
 	queue.destination.type = DPNI_DEST_DPCON;
 	queue.destination.priority = 1;
 	queue.user_context = (u64)(uintptr_t)fq;
+	queue.flc.stash_control = 1;
+	queue.flc.value &= 0xFFFFFFFFFFFFFFC0;
+	/* 01 01 00 - data, annotation, flow context */
+	queue.flc.value |= 0x14;
 	err = dpni_set_queue(priv->mc_io, 0, priv->mc_token,
 			     DPNI_QUEUE_RX, 0, fq->flowid,
-			     DPNI_QUEUE_OPT_USER_CTX | DPNI_QUEUE_OPT_DEST,
+			     DPNI_QUEUE_OPT_USER_CTX | DPNI_QUEUE_OPT_DEST |
+			     DPNI_QUEUE_OPT_FLC,
 			     &queue);
 	if (err) {
 		dev_err(dev, "dpni_set_queue(RX) failed\n");

drivers/soc/fsl/Kconfig

@@ -22,6 +22,7 @@ config FSL_GUTS
 config FSL_MC_DPIO
         tristate "QorIQ DPAA2 DPIO driver"
         depends on FSL_MC_BUS
+        select SOC_BUS
         help
 	  Driver for the DPAA2 DPIO object.  A DPIO provides queue and
 	  buffer management facilities for software to interact with

drivers/soc/fsl/dpio/dpio-cmd.h

@@ -26,6 +26,7 @@
 #define DPIO_CMDID_DISABLE				DPIO_CMD(0x003)
 #define DPIO_CMDID_GET_ATTR				DPIO_CMD(0x004)
 #define DPIO_CMDID_RESET				DPIO_CMD(0x005)
+#define DPIO_CMDID_SET_STASHING_DEST			DPIO_CMD(0x120)
 
 struct dpio_cmd_open {
 	__le32 dpio_id;
@@ -47,4 +48,8 @@ struct dpio_rsp_get_attr {
 	__le32 qbman_version;
 };
 
+struct dpio_stashing_dest {
+	u8 sdest;
+};
+
 #endif /* _FSL_DPIO_CMD_H */

drivers/soc/fsl/dpio/dpio-driver.c

@@ -14,6 +14,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/delay.h>
 #include <linux/io.h>
+#include <linux/sys_soc.h>
 
 #include <linux/fsl/mc.h>
 #include <soc/fsl/dpaa2-io.h>
@@ -32,6 +33,46 @@ struct dpio_priv {
 
 static cpumask_var_t cpus_unused_mask;
 
+static const struct soc_device_attribute ls1088a_soc[] = {
+	{.family = "QorIQ LS1088A"},
+	{ /* sentinel */ }
+};
+
+static const struct soc_device_attribute ls2080a_soc[] = {
+	{.family = "QorIQ LS2080A"},
+	{ /* sentinel */ }
+};
+
+static const struct soc_device_attribute ls2088a_soc[] = {
+	{.family = "QorIQ LS2088A"},
+	{ /* sentinel */ }
+};
+
+static const struct soc_device_attribute lx2160a_soc[] = {
+	{.family = "QorIQ LX2160A"},
+	{ /* sentinel */ }
+};
+
+static int dpaa2_dpio_get_cluster_sdest(struct fsl_mc_device *dpio_dev, int cpu)
+{
+	int cluster_base, cluster_size;
+
+	if (soc_device_match(ls1088a_soc)) {
+		cluster_base = 2;
+		cluster_size = 4;
+	} else if (soc_device_match(ls2080a_soc) ||
+		   soc_device_match(ls2088a_soc) ||
+		   soc_device_match(lx2160a_soc)) {
+		cluster_base = 0;
+		cluster_size = 2;
+	} else {
+		dev_err(&dpio_dev->dev, "unknown SoC version\n");
+		return -1;
+	}
+
+	return cluster_base + cpu / cluster_size;
+}
+
 static irqreturn_t dpio_irq_handler(int irq_num, void *arg)
 {
 	struct device *dev = (struct device *)arg;
@@ -89,6 +130,7 @@ static int dpaa2_dpio_probe(struct fsl_mc_device *dpio_dev)
 	int err = -ENOMEM;
 	struct device *dev = &dpio_dev->dev;
 	int possible_next_cpu;
+	int sdest;
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
@@ -145,6 +187,16 @@ static int dpaa2_dpio_probe(struct fsl_mc_device *dpio_dev)
 	desc.cpu = possible_next_cpu;
 	cpumask_clear_cpu(possible_next_cpu, cpus_unused_mask);
 
+	sdest = dpaa2_dpio_get_cluster_sdest(dpio_dev, desc.cpu);
+	if (sdest >= 0) {
+		err = dpio_set_stashing_destination(dpio_dev->mc_io, 0,
+						    dpio_dev->mc_handle,
+						    sdest);
+		if (err)
+			dev_err(dev, "dpio_set_stashing_destination failed for cpu%d\n",
+				desc.cpu);
+	}
+
 	/*
 	 * Set the CENA regs to be the cache inhibited area of the portal to
 	 * avoid coherency issues if a user migrates to another core.

drivers/soc/fsl/dpio/dpio.c

@@ -166,6 +166,22 @@ int dpio_get_attributes(struct fsl_mc_io *mc_io,
 	return 0;
 }
 
+int dpio_set_stashing_destination(struct fsl_mc_io *mc_io,
+				  u32 cmd_flags,
+				  u16 token,
+				  u8 sdest)
+{
+	struct fsl_mc_command cmd = { 0 };
+	struct dpio_stashing_dest *dpio_cmd;
+
+	cmd.header = mc_encode_cmd_header(DPIO_CMDID_SET_STASHING_DEST,
+					  cmd_flags, token);
+	dpio_cmd = (struct dpio_stashing_dest *)cmd.params;
+	dpio_cmd->sdest = sdest;
+
+	return mc_send_command(mc_io, &cmd);
+}
+
 /**
  * dpio_get_api_version - Get Data Path I/O API version
  * @mc_io:	Pointer to MC portal's DPIO object

drivers/soc/fsl/dpio/dpio.h

@@ -75,6 +75,11 @@ int dpio_get_attributes(struct fsl_mc_io	*mc_io,
 			u16		token,
 			struct dpio_attr	*attr);
 
+int dpio_set_stashing_destination(struct fsl_mc_io *mc_io,
+				  u32 cmd_flags,
+				  u16 token,
+				  u8 dest);
+
 int dpio_get_api_version(struct fsl_mc_io *mc_io,
 			 u32 cmd_flags,
 			 u16 *major_ver,

drivers/soc/fsl/dpio/qbman-portal.c

@@ -169,9 +169,9 @@ struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d)
 				3, /* RPM: Valid bit mode, RCR in array mode */
 				2, /* DCM: Discrete consumption ack mode */
 				3, /* EPM: Valid bit mode, EQCR in array mode */
-				0, /* mem stashing drop enable == FALSE */
+				1, /* mem stashing drop enable == TRUE */
 				1, /* mem stashing priority == TRUE */
-				0, /* mem stashing enable == FALSE */
+				1, /* mem stashing enable == TRUE */
 				1, /* dequeue stashing priority == TRUE */
 				0, /* dequeue stashing enable == FALSE */
 				0); /* EQCR_CI stashing priority == FALSE */

drivers/soc/fsl/guts.c

@@ -115,7 +115,7 @@ static const struct fsl_soc_die_attr *fsl_soc_die_match(
 	return NULL;
 }
 
-u32 fsl_guts_get_svr(void)
+static u32 fsl_guts_get_svr(void)
 {
 	u32 svr = 0;
 
@@ -129,7 +129,6 @@ u32 fsl_guts_get_svr(void)
 
 	return svr;
 }
-EXPORT_SYMBOL(fsl_guts_get_svr);
 
 static int fsl_guts_probe(struct platform_device *pdev)
 {

include/linux/fsl/guts.h

@@ -135,8 +135,6 @@ struct ccsr_guts {
 	u32	srds2cr1;	/* 0x.0f44 - SerDes2 Control Register 0 */
 } __attribute__ ((packed));
 
-u32 fsl_guts_get_svr(void);
-
 /* Alternate function signal multiplex control */
 #define MPC85xx_PMUXCR_QE(x) (0x8000 >> (x))