[PATCH 05/14] staging: fsl-mc: update dprc binary interface to v5.1

From: Stuart Yoder
Date: Mon Apr 11 2016 - 12:49:41 EST

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From: Stuart Yoder <stuart.yoder@xxxxxxx>

The meaning of the "status" parameter in dprc_get_irq_status
has changed, and this patch updates the flib and caller
of the API.

Signed-off-by: Stuart Yoder <stuart.yoder@xxxxxxx>
---
drivers/staging/fsl-mc/bus/dprc-cmd.h | 4 ++--
drivers/staging/fsl-mc/bus/dprc-driver.c | 1 +
drivers/staging/fsl-mc/bus/dprc.c | 26 +++++++++++++-------------
drivers/staging/fsl-mc/bus/mc-msi.c | 2 +-
drivers/staging/fsl-mc/include/dprc.h | 19 ++++++++++++-------
5 files changed, 29 insertions(+), 23 deletions(-)

diff --git a/drivers/staging/fsl-mc/bus/dprc-cmd.h b/drivers/staging/fsl-mc/bus/dprc-cmd.h
index 6552c20..d0198f5 100644
--- a/drivers/staging/fsl-mc/bus/dprc-cmd.h
+++ b/drivers/staging/fsl-mc/bus/dprc-cmd.h
@@ -41,8 +41,8 @@
#define _FSL_DPRC_CMD_H

/* DPRC Version */
-#define DPRC_VER_MAJOR 4
-#define DPRC_VER_MINOR 0
+#define DPRC_VER_MAJOR 5
+#define DPRC_VER_MINOR 1

/* Command IDs */
#define DPRC_CMDID_CLOSE 0x800
diff --git a/drivers/staging/fsl-mc/bus/dprc-driver.c b/drivers/staging/fsl-mc/bus/dprc-driver.c
index 31488a7..4334f3c 100644
--- a/drivers/staging/fsl-mc/bus/dprc-driver.c
+++ b/drivers/staging/fsl-mc/bus/dprc-driver.c
@@ -423,6 +423,7 @@ static irqreturn_t dprc_irq0_handler_thread(int irq_num, void *arg)
if (WARN_ON(!msi_desc || msi_desc->irq != (u32)irq_num))
goto out;

+ status = 0;
error = dprc_get_irq_status(mc_io, 0, mc_dev->mc_handle, 0,
&status);
if (error < 0) {
diff --git a/drivers/staging/fsl-mc/bus/dprc.c b/drivers/staging/fsl-mc/bus/dprc.c
index 381b9a9..a2c4737 100644
--- a/drivers/staging/fsl-mc/bus/dprc.c
+++ b/drivers/staging/fsl-mc/bus/dprc.c
@@ -265,7 +265,7 @@ int dprc_get_irq(struct fsl_mc_io *mc_io,
/* retrieve response parameters */
irq_cfg->val = mc_dec(cmd.params[0], 0, 32);
irq_cfg->paddr = mc_dec(cmd.params[1], 0, 64);
- irq_cfg->user_irq_id = mc_dec(cmd.params[2], 0, 32);
+ irq_cfg->irq_num = mc_dec(cmd.params[2], 0, 32);
*type = mc_dec(cmd.params[2], 32, 32);

return 0;
@@ -296,7 +296,7 @@ int dprc_set_irq(struct fsl_mc_io *mc_io,
cmd.params[0] |= mc_enc(32, 8, irq_index);
cmd.params[0] |= mc_enc(0, 32, irq_cfg->val);
cmd.params[1] |= mc_enc(0, 64, irq_cfg->paddr);
- cmd.params[2] |= mc_enc(0, 32, irq_cfg->user_irq_id);
+ cmd.params[2] |= mc_enc(0, 32, irq_cfg->irq_num);

/* send command to mc*/
return mc_send_command(mc_io, &cmd);
@@ -466,6 +466,7 @@ int dprc_get_irq_status(struct fsl_mc_io *mc_io,
/* prepare command */
cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ_STATUS,
cmd_flags, token);
+ cmd.params[0] |= mc_enc(0, 32, *status);
cmd.params[0] |= mc_enc(32, 8, irq_index);

/* send command to mc*/
@@ -948,6 +949,7 @@ int dprc_get_obj(struct fsl_mc_io *mc_io,
obj_desc->state = mc_dec(cmd.params[1], 32, 32);
obj_desc->ver_major = mc_dec(cmd.params[2], 0, 16);
obj_desc->ver_minor = mc_dec(cmd.params[2], 16, 16);
+ obj_desc->flags = mc_dec(cmd.params[2], 32, 16);
obj_desc->type[0] = mc_dec(cmd.params[3], 0, 8);
obj_desc->type[1] = mc_dec(cmd.params[3], 8, 8);
obj_desc->type[2] = mc_dec(cmd.params[3], 16, 8);
@@ -1042,6 +1044,7 @@ int dprc_get_obj_desc(struct fsl_mc_io *mc_io,
obj_desc->state = (u32)mc_dec(cmd.params[1], 32, 32);
obj_desc->ver_major = (u16)mc_dec(cmd.params[2], 0, 16);
obj_desc->ver_minor = (u16)mc_dec(cmd.params[2], 16, 16);
+ obj_desc->flags = mc_dec(cmd.params[2], 32, 16);
obj_desc->type[0] = (char)mc_dec(cmd.params[3], 0, 8);
obj_desc->type[1] = (char)mc_dec(cmd.params[3], 8, 8);
obj_desc->type[2] = (char)mc_dec(cmd.params[3], 16, 8);
@@ -1108,7 +1111,7 @@ int dprc_set_obj_irq(struct fsl_mc_io *mc_io,
cmd.params[0] |= mc_enc(32, 8, irq_index);
cmd.params[0] |= mc_enc(0, 32, irq_cfg->val);
cmd.params[1] |= mc_enc(0, 64, irq_cfg->paddr);
- cmd.params[2] |= mc_enc(0, 32, irq_cfg->user_irq_id);
+ cmd.params[2] |= mc_enc(0, 32, irq_cfg->irq_num);
cmd.params[2] |= mc_enc(32, 32, obj_id);
cmd.params[3] |= mc_enc(0, 8, obj_type[0]);
cmd.params[3] |= mc_enc(8, 8, obj_type[1]);
@@ -1189,7 +1192,7 @@ int dprc_get_obj_irq(struct fsl_mc_io *mc_io,
/* retrieve response parameters */
irq_cfg->val = (u32)mc_dec(cmd.params[0], 0, 32);
irq_cfg->paddr = (u64)mc_dec(cmd.params[1], 0, 64);
- irq_cfg->user_irq_id = (int)mc_dec(cmd.params[2], 0, 32);
+ irq_cfg->irq_num = (int)mc_dec(cmd.params[2], 0, 32);
*type = (int)mc_dec(cmd.params[2], 32, 32);

return 0;
@@ -1437,14 +1440,8 @@ EXPORT_SYMBOL(dprc_set_obj_label);
* @endpoint1: Endpoint 1 configuration parameters
* @endpoint2: Endpoint 2 configuration parameters
* @cfg: Connection configuration. The connection configuration is ignored for
- * connections made to DPMAC objects, where rate is set according to
- * MAC configuration.
- * The committed rate is the guaranteed rate for the connection.
- * The maximum rate is an upper limit allowed for the connection; it is
- * expected to be equal or higher than the committed rate.
- * When committed and maximum rates are both zero, the connection is set
- * to "best effort" mode, having lower priority compared to connections
- * with committed or maximum rates.
+ * connections made to DPMAC objects, where rate is retrieved from the
+ * MAC configuration.
*
* Return: '0' on Success; Error code otherwise.
*/
@@ -1555,7 +1552,10 @@ int dprc_disconnect(struct fsl_mc_io *mc_io,
* @token: Token of DPRC object
* @endpoint1: Endpoint 1 configuration parameters
* @endpoint2: Returned endpoint 2 configuration parameters
-* @state: Returned link state: 1 - link is up, 0 - link is down
+* @state: Returned link state:
+* 1 - link is up;
+* 0 - link is down;
+* -1 - no connection (endpoint2 information is irrelevant)
*
* Return: '0' on Success; -ENAVAIL if connection does not exist.
*/
diff --git a/drivers/staging/fsl-mc/bus/mc-msi.c b/drivers/staging/fsl-mc/bus/mc-msi.c
index 3a8258f..ba48add 100644
--- a/drivers/staging/fsl-mc/bus/mc-msi.c
+++ b/drivers/staging/fsl-mc/bus/mc-msi.c
@@ -65,7 +65,7 @@ static void __fsl_mc_msi_write_msg(struct fsl_mc_device *mc_bus_dev,
irq_cfg.paddr = ((u64)msi_desc->msg.address_hi << 32) |
msi_desc->msg.address_lo;
irq_cfg.val = msi_desc->msg.data;
- irq_cfg.user_irq_id = msi_desc->irq;
+ irq_cfg.irq_num = msi_desc->irq;

if (owner_mc_dev == mc_bus_dev) {
/*
diff --git a/drivers/staging/fsl-mc/include/dprc.h b/drivers/staging/fsl-mc/include/dprc.h
index 94c4927..593b2bb 100644
--- a/drivers/staging/fsl-mc/include/dprc.h
+++ b/drivers/staging/fsl-mc/include/dprc.h
@@ -94,11 +94,6 @@ int dprc_close(struct fsl_mc_io *mc_io,
*/
#define DPRC_CFG_OPT_TOPOLOGY_CHANGES_ALLOWED 0x00000008

-/* IOMMU bypass - indicates whether objects of this container are permitted
- * to bypass the IOMMU.
- */
-#define DPRC_CFG_OPT_IOMMU_BYPASS 0x00000010
-
/* AIOP - Indicates that container belongs to AIOP. */
#define DPRC_CFG_OPT_AIOP 0x00000020

@@ -173,12 +168,12 @@ int dprc_reset_container(struct fsl_mc_io *mc_io,
* struct dprc_irq_cfg - IRQ configuration
* @paddr: Address that must be written to signal a message-based interrupt
* @val: Value to write into irq_addr address
- * @user_irq_id: A user defined number associated with this IRQ
+ * @irq_num: A user defined number associated with this IRQ
*/
struct dprc_irq_cfg {
phys_addr_t paddr;
u32 val;
- int user_irq_id;
+ int irq_num;
};

int dprc_set_irq(struct fsl_mc_io *mc_io,
@@ -353,6 +348,14 @@ int dprc_get_obj_count(struct fsl_mc_io *mc_io,
#define DPRC_OBJ_STATE_PLUGGED 0x00000002

/**
+ * Shareability flag - Object flag indicating no memory shareability.
+ * the object generates memory accesses that are non coherent with other
+ * masters;
+ * user is responsible for proper memory handling through IOMMU configuration.
+ */
+#define DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY 0x0001
+
+/**
* struct dprc_obj_desc - Object descriptor, returned from dprc_get_obj()
* @type: Type of object: NULL terminated string
* @id: ID of logical object resource
@@ -363,6 +366,7 @@ int dprc_get_obj_count(struct fsl_mc_io *mc_io,
* @region_count: Number of mappable regions supported by the object
* @state: Object state: combination of DPRC_OBJ_STATE_ states
* @label: Object label
+ * @flags: Object's flags
*/
struct dprc_obj_desc {
char type[16];
@@ -374,6 +378,7 @@ struct dprc_obj_desc {
u8 region_count;
u32 state;
char label[16];
+ u16 flags;
};

int dprc_get_obj(struct fsl_mc_io *mc_io,
--
1.7.9.5

Next message: Stuart Yoder: "[PATCH 11/14] staging: fsl-mc: add quirk handling for dpseci objects < 4.0"
Previous message: Stuart Yoder: "[PATCH 07/14] staging: fsl-mc: set up coherent dma ops for added devices"
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