---
drivers/interconnect/qcom/icc-rpm.c | 241 ++++++++++++--
drivers/interconnect/qcom/icc-rpm.h | 42 ++-
drivers/interconnect/qcom/sdm660.c | 485 ++--------------------------
3 files changed, 274 insertions(+), 494 deletions(-)
diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c
index 394f515cc88d..b8bac738c64f 100644
--- a/drivers/interconnect/qcom/icc-rpm.c
+++ b/drivers/interconnect/qcom/icc-rpm.c
@@ -11,60 +11,228 @@
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
+#include <linux/regmap.h>
#include <linux/slab.h>
#include "smd-rpm.h"
#include "icc-rpm.h"
-static int qcom_icc_set(struct icc_node *src, struct icc_node *dst)
+/* BIMC QoS */
+#define M_BKE_REG_BASE(n) (0x300 + (0x4000 * n))
+#define M_BKE_EN_ADDR(n) (M_BKE_REG_BASE(n))
+#define M_BKE_HEALTH_CFG_ADDR(i, n) (M_BKE_REG_BASE(n) + 0x40 + (0x4 * i))
+
+#define M_BKE_HEALTH_CFG_LIMITCMDS_MASK 0x80000000
+#define M_BKE_HEALTH_CFG_AREQPRIO_MASK 0x300
+#define M_BKE_HEALTH_CFG_PRIOLVL_MASK 0x3
+#define M_BKE_HEALTH_CFG_AREQPRIO_SHIFT 0x8
+#define M_BKE_HEALTH_CFG_LIMITCMDS_SHIFT 0x1f
+
+#define M_BKE_EN_EN_BMASK 0x1
+
+/* NoC QoS */
+#define NOC_QOS_PRIORITYn_ADDR(n) (0x8 + (n * 0x1000))
+#define NOC_QOS_PRIORITY_P1_MASK 0xc
+#define NOC_QOS_PRIORITY_P0_MASK 0x3
+#define NOC_QOS_PRIORITY_P1_SHIFT 0x2
+
+#define NOC_QOS_MODEn_ADDR(n) (0xc + (n * 0x1000))
+#define NOC_QOS_MODEn_MASK 0x3
+
+static int qcom_icc_bimc_set_qos_health(struct regmap *rmap,
+ struct qcom_icc_qos *qos,
+ int regnum)
+{
+ u32 val;
+ u32 mask;
+
+ val = qos->prio_level;
+ mask = M_BKE_HEALTH_CFG_PRIOLVL_MASK;
+
+ val |= qos->areq_prio << M_BKE_HEALTH_CFG_AREQPRIO_SHIFT;
+ mask |= M_BKE_HEALTH_CFG_AREQPRIO_MASK;
+
+ /* LIMITCMDS is not present on M_BKE_HEALTH_3 */
+ if (regnum != 3) {
+ val |= qos->limit_commands << M_BKE_HEALTH_CFG_LIMITCMDS_SHIFT;
+ mask |= M_BKE_HEALTH_CFG_LIMITCMDS_MASK;
+ }
+
+ return regmap_update_bits(rmap,
+ M_BKE_HEALTH_CFG_ADDR(regnum, qos->qos_port),
+ mask, val);
+}
+
+static int qcom_icc_set_bimc_qos(struct icc_node *src, u64 max_bw)
{
struct qcom_icc_provider *qp;
struct qcom_icc_node *qn;
struct icc_provider *provider;
- struct icc_node *n;
- u64 sum_bw;
- u64 max_peak_bw;
- u64 rate;
- u32 agg_avg = 0;
- u32 agg_peak = 0;
- int ret, i;
+ u32 mode = NOC_QOS_MODE_BYPASS;
+ u32 val = 0;
+ int i, rc = 0;
qn = src->data;
provider = src->provider;
qp = to_qcom_provider(provider);
- list_for_each_entry(n, &provider->nodes, node_list)
- provider->aggregate(n, 0, n->avg_bw, n->peak_bw,
- &agg_avg, &agg_peak);
+ if (qn->qos.qos_mode != -1)
+ mode = qn->qos.qos_mode;
+
+ /* QoS Priority: The QoS Health parameters are getting considered
+ * only if we are NOT in Bypass Mode.
+ */
+ if (mode != NOC_QOS_MODE_BYPASS) {
+ for (i = 3; i >= 0; i--) {
+ rc = qcom_icc_bimc_set_qos_health(qp->regmap,
+ &qn->qos, i);
+ if (rc)
+ return rc;
+ }
- sum_bw = icc_units_to_bps(agg_avg);
- max_peak_bw = icc_units_to_bps(agg_peak);
+ /* Set BKE_EN to 1 when Fixed, Regulator or Limiter Mode */
+ val = 1;
+ }
+
+ return regmap_update_bits(qp->regmap, M_BKE_EN_ADDR(qn->qos.qos_port),
+ M_BKE_EN_EN_BMASK, val);
+}
+
+static int qcom_icc_noc_set_qos_priority(struct regmap *rmap,
+ struct qcom_icc_qos *qos)
+{
+ u32 val;
+ int rc;
+
+ /* Must be updated one at a time, P1 first, P0 last */
+ val = qos->areq_prio << NOC_QOS_PRIORITY_P1_SHIFT;
+ rc = regmap_update_bits(rmap, NOC_QOS_PRIORITYn_ADDR(qos->qos_port),
+ NOC_QOS_PRIORITY_P1_MASK, val);
+ if (rc)
+ return rc;
+
+ return regmap_update_bits(rmap, NOC_QOS_PRIORITYn_ADDR(qos->qos_port),
+ NOC_QOS_PRIORITY_P0_MASK, qos->prio_level);
+}
+
+static int qcom_icc_set_noc_qos(struct icc_node *src, u64 max_bw)
+{
+ struct qcom_icc_provider *qp;
+ struct qcom_icc_node *qn;
+ struct icc_provider *provider;
+ u32 mode = NOC_QOS_MODE_BYPASS;
+ int rc = 0;
+
+ qn = src->data;
+ provider = src->provider;
+ qp = to_qcom_provider(provider);
+
+ if (qn->qos.qos_port < 0) {
+ dev_dbg(src->provider->dev,
+ "NoC QoS: Skipping %s: vote aggregated on parent.\n",
+ qn->name);
+ return 0;
+ }
+
+ if (qn->qos.qos_mode != -1)
+ mode = qn->qos.qos_mode;
+
+ if (mode == NOC_QOS_MODE_FIXED) {
+ dev_dbg(src->provider->dev, "NoC QoS: %s: Set Fixed mode\n",
+ qn->name);
+ rc = qcom_icc_noc_set_qos_priority(qp->regmap, &qn->qos);
+ if (rc)
+ return rc;
+ } else if (mode == NOC_QOS_MODE_BYPASS) {
+ dev_dbg(src->provider->dev, "NoC QoS: %s: Set Bypass mode\n",
+ qn->name);
+ }
+
+ return regmap_update_bits(qp->regmap,
+ NOC_QOS_MODEn_ADDR(qn->qos.qos_port),
+ NOC_QOS_MODEn_MASK, mode);
+}
- /* send bandwidth request message to the RPM processor */
- if (qn->mas_rpm_id != -1) {
+static int qcom_icc_qos_set(struct icc_node *node, u64 sum_bw)
+{
+ struct qcom_icc_provider *qp = to_qcom_provider(node->provider);
+ struct qcom_icc_node *qn = node->data;
+
+ dev_dbg(node->provider->dev, "Setting QoS for %s\n", qn->name);
+
+ if (qp->is_bimc_node)
+ return qcom_icc_set_bimc_qos(node, sum_bw);
+
+ return qcom_icc_set_noc_qos(node, sum_bw);
+}
+
+static int qcom_icc_rpm_set(int mas_rpm_id, int slv_rpm_id, u64 sum_bw)
+{
+ int ret = 0;
+
+ if (mas_rpm_id != -1) {
ret = qcom_icc_rpm_smd_send(QCOM_SMD_RPM_ACTIVE_STATE,
RPM_BUS_MASTER_REQ,
- qn->mas_rpm_id,
+ mas_rpm_id,
sum_bw);
if (ret) {
pr_err("qcom_icc_rpm_smd_send mas %d error %d\n",
- qn->mas_rpm_id, ret);
+ mas_rpm_id, ret);
return ret;
}
}
- if (qn->slv_rpm_id != -1) {
+ if (slv_rpm_id != -1) {
ret = qcom_icc_rpm_smd_send(QCOM_SMD_RPM_ACTIVE_STATE,
RPM_BUS_SLAVE_REQ,
- qn->slv_rpm_id,
+ slv_rpm_id,
sum_bw);
if (ret) {
pr_err("qcom_icc_rpm_smd_send slv %d error %d\n",
- qn->slv_rpm_id, ret);
+ slv_rpm_id, ret);
return ret;
}
}
+ return ret;
+}
+
+static int qcom_icc_set(struct icc_node *src, struct icc_node *dst)
+{
+ struct qcom_icc_provider *qp;
+ struct qcom_icc_node *qn;
+ struct icc_provider *provider;
+ struct icc_node *n;
+ u64 sum_bw;
+ u64 max_peak_bw;
+ u64 rate;
+ u32 agg_avg = 0;
+ u32 agg_peak = 0;
+ int ret, i;
+
+ qn = src->data;
+ provider = src->provider;
+ qp = to_qcom_provider(provider);
+
+ list_for_each_entry(n, &provider->nodes, node_list)
+ provider->aggregate(n, 0, n->avg_bw, n->peak_bw,
+ &agg_avg, &agg_peak);
+
+ sum_bw = icc_units_to_bps(agg_avg);
+ max_peak_bw = icc_units_to_bps(agg_peak);
+
+ if (!qn->qos.ap_owned) {
+ /* send bandwidth request message to the RPM processor */
+ ret = qcom_icc_rpm_set(qn->mas_rpm_id, qn->slv_rpm_id, sum_bw);
+ if (ret)
+ return ret;
+ } else if (qn->qos.qos_mode != -1) {
+ /* set bandwidth directly from the AP */
+ ret = qcom_icc_qos_set(src, sum_bw);
+ if (ret)
+ return ret;
+ }
+
rate = max(sum_bw, max_peak_bw);
do_div(rate, qn->buswidth);
@@ -115,8 +283,13 @@ int qnoc_probe(struct platform_device *pdev)
qnodes = desc->nodes;
num_nodes = desc->num_nodes;
- cds = bus_clocks;
- cd_num = ARRAY_SIZE(bus_clocks);
+ if (desc->num_clocks) {
+ cds = desc->clocks;
+ cd_num = desc->num_clocks;
+ } else {
+ cds = bus_clocks;
+ cd_num = ARRAY_SIZE(bus_clocks);
+ }
qp = devm_kzalloc(dev, struct_size(qp, bus_clks, cd_num), GFP_KERNEL);
if (!qp)
@@ -131,6 +304,30 @@ int qnoc_probe(struct platform_device *pdev)
qp->bus_clks[i].id = cds[i];
qp->num_clks = cd_num;
+ qp->is_bimc_node = desc->is_bimc_node;
+
+ if (desc->regmap_cfg) {
+ struct resource *res;
+ void __iomem *mmio;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ mmio = devm_ioremap_resource(dev, res);
+
+ if (IS_ERR(mmio)) {
+ dev_err(dev, "Cannot ioremap interconnect bus resource\n");
+ return PTR_ERR(mmio);
+ }
+
+ qp->regmap = devm_regmap_init_mmio(dev, mmio, desc->regmap_cfg);
+ if (IS_ERR(qp->regmap)) {
+ dev_err(dev, "Cannot regmap interconnect bus resource\n");
+ return PTR_ERR(qp->regmap);
+ }
+ }
+
ret = devm_clk_bulk_get(dev, qp->num_clks, qp->bus_clks);
if (ret)
return ret;
diff --git a/drivers/interconnect/qcom/icc-rpm.h b/drivers/interconnect/qcom/icc-rpm.h
index f4b05c20c097..868585c80f38 100644
--- a/drivers/interconnect/qcom/icc-rpm.h
+++ b/drivers/interconnect/qcom/icc-rpm.h
@@ -9,8 +9,6 @@
#define RPM_BUS_MASTER_REQ 0x73616d62
#define RPM_BUS_SLAVE_REQ 0x766c7362
-#define QCOM_MAX_LINKS 12
-
#define to_qcom_provider(_provider) \
container_of(_provider, struct qcom_icc_provider, provider)
@@ -19,13 +17,35 @@
* @provider: generic interconnect provider
* @bus_clks: the clk_bulk_data table of bus clocks
* @num_clks: the total number of clk_bulk_data entries
+ * @is_bimc_node: indicates whether to use bimc specific setting
+ * @regmap: regmap for QoS registers read/write access
*/
struct qcom_icc_provider {
struct icc_provider provider;
int num_clks;
+ bool is_bimc_node;
+ struct regmap *regmap;
struct clk_bulk_data bus_clks[];
};
+/**
+ * struct qcom_icc_qos - Qualcomm specific interconnect QoS parameters
+ * @areq_prio: node requests priority
+ * @prio_level: priority level for bus communication
+ * @limit_commands: activate/deactivate limiter mode during runtime
+ * @ap_owned: indicates if the node is owned by the AP or by the RPM
+ * @qos_mode: default qos mode for this node
+ * @qos_port: qos port number for finding qos registers of this node
+ */
+struct qcom_icc_qos {
+ u32 areq_prio;
+ u32 prio_level;
+ bool limit_commands;
+ bool ap_owned;
+ int qos_mode;
+ int qos_port;
+};
+
/**
* struct qcom_icc_node - Qualcomm specific interconnect nodes
* @name: the node name used in debugfs
@@ -35,36 +55,48 @@ struct qcom_icc_provider {
* @buswidth: width of the interconnect between a node and the bus (bytes)
* @mas_rpm_id: RPM id for devices that are bus masters
* @slv_rpm_id: RPM id for devices that are bus slaves
+ * @qos: NoC QoS setting parameters
* @rate: current bus clock rate in Hz
*/
struct qcom_icc_node {
unsigned char *name;
u16 id;
- u16 links[QCOM_MAX_LINKS];
+ const u16 *links;
u16 num_links;
u16 buswidth;
int mas_rpm_id;
int slv_rpm_id;
+ struct qcom_icc_qos qos;
u64 rate;
};
struct qcom_icc_desc {
struct qcom_icc_node **nodes;
size_t num_nodes;
+ const char ** clocks;
+ size_t num_clocks;
+ bool is_bimc_node;
+ const struct regmap_config *regmap_cfg;
};
#define DEFINE_QNODE(_name, _id, _buswidth, _mas_rpm_id, _slv_rpm_id, \
...) \
+ static const u16 _name ## _links[] = { __VA_ARGS__ }; \
+ \
static struct qcom_icc_node _name = { \
.name = #_name, \
.id = _id, \
.buswidth = _buswidth, \
.mas_rpm_id = _mas_rpm_id, \
.slv_rpm_id = _slv_rpm_id, \
- .num_links = ARRAY_SIZE(((int[]){ __VA_ARGS__ })), \
- .links = { __VA_ARGS__ }, \
+ .num_links = ARRAY_SIZE(_name ## _links), \
+ .links = _name ## _links, \
}
+/* Valid for both NoC and BIMC */
+#define NOC_QOS_MODE_INVALID -1
+#define NOC_QOS_MODE_FIXED 0x0
+#define NOC_QOS_MODE_BYPASS 0x2
int qnoc_probe(struct platform_device *pdev);
int qnoc_remove(struct platform_device *pdev);
diff --git a/drivers/interconnect/qcom/sdm660.c b/drivers/interconnect/qcom/sdm660.c
index 4a72f9677d4e..384dd3661757 100644
--- a/drivers/interconnect/qcom/sdm660.c
+++ b/drivers/interconnect/qcom/sdm660.c
@@ -16,42 +16,9 @@
#include <linux/regmap.h>
#include <linux/slab.h>
+#include "icc-rpm.h"
#include "smd-rpm.h"
-#define RPM_BUS_MASTER_REQ 0x73616d62
-#define RPM_BUS_SLAVE_REQ 0x766c7362
-
-/* BIMC QoS */
-#define M_BKE_REG_BASE(n) (0x300 + (0x4000 * n))
-#define M_BKE_EN_ADDR(n) (M_BKE_REG_BASE(n))
-#define M_BKE_HEALTH_CFG_ADDR(i, n) (M_BKE_REG_BASE(n) + 0x40 + (0x4 * i))
-
-#define M_BKE_HEALTH_CFG_LIMITCMDS_MASK 0x80000000
-#define M_BKE_HEALTH_CFG_AREQPRIO_MASK 0x300
-#define M_BKE_HEALTH_CFG_PRIOLVL_MASK 0x3
-#define M_BKE_HEALTH_CFG_AREQPRIO_SHIFT 0x8
-#define M_BKE_HEALTH_CFG_LIMITCMDS_SHIFT 0x1f
-
-#define M_BKE_EN_EN_BMASK 0x1
-
-/* Valid for both NoC and BIMC */
-#define NOC_QOS_MODE_INVALID -1
-#define NOC_QOS_MODE_FIXED 0x0
-#define NOC_QOS_MODE_LIMITER 0x1
-#define NOC_QOS_MODE_BYPASS 0x2
-
-/* NoC QoS */
-#define NOC_PERM_MODE_FIXED 1
-#define NOC_PERM_MODE_BYPASS (1 << NOC_QOS_MODE_BYPASS)
-
-#define NOC_QOS_PRIORITYn_ADDR(n) (0x8 + (n * 0x1000))
-#define NOC_QOS_PRIORITY_P1_MASK 0xc
-#define NOC_QOS_PRIORITY_P0_MASK 0x3
-#define NOC_QOS_PRIORITY_P1_SHIFT 0x2
-
-#define NOC_QOS_MODEn_ADDR(n) (0xc + (n * 0x1000))
-#define NOC_QOS_MODEn_MASK 0x3
-
enum {
SDM660_MASTER_IPA = 1,
SDM660_MASTER_CNOC_A2NOC,
@@ -160,94 +127,20 @@ enum {
SDM660_SNOC,
};
-#define to_qcom_provider(_provider) \
- container_of(_provider, struct qcom_icc_provider, provider)
-
-static const struct clk_bulk_data bus_clocks[] = {
- { .id = "bus" },
- { .id = "bus_a" },
+static const char * bus_mm_clocks[] = {
+ "bus",
+ "bus_a",
+ "iface",
};
-static const struct clk_bulk_data bus_mm_clocks[] = {
- { .id = "bus" },
- { .id = "bus_a" },
- { .id = "iface" },
-};
-
-static const struct clk_bulk_data bus_a2noc_clocks[] = {
- { .id = "bus" },
- { .id = "bus_a" },
- { .id = "ipa" },
- { .id = "ufs_axi" },
- { .id = "aggre2_ufs_axi" },
- { .id = "aggre2_usb3_axi" },
- { .id = "cfg_noc_usb2_axi" },
-};
-
-/**
- * struct qcom_icc_provider - Qualcomm specific interconnect provider
- * @provider: generic interconnect provider
- * @bus_clks: the clk_bulk_data table of bus clocks
- * @num_clks: the total number of clk_bulk_data entries
- * @is_bimc_node: indicates whether to use bimc specific setting
- * @regmap: regmap for QoS registers read/write access
- * @mmio: NoC base iospace
- */
-struct qcom_icc_provider {
- struct icc_provider provider;
- struct clk_bulk_data *bus_clks;
- int num_clks;
- bool is_bimc_node;
- struct regmap *regmap;
- void __iomem *mmio;
-};
-
-/**
- * struct qcom_icc_qos - Qualcomm specific interconnect QoS parameters
- * @areq_prio: node requests priority
- * @prio_level: priority level for bus communication
- * @limit_commands: activate/deactivate limiter mode during runtime
- * @ap_owned: indicates if the node is owned by the AP or by the RPM
- * @qos_mode: default qos mode for this node
- * @qos_port: qos port number for finding qos registers of this node
- */
-struct qcom_icc_qos {
- u32 areq_prio;
- u32 prio_level;
- bool limit_commands;
- bool ap_owned;
- int qos_mode;
- int qos_port;
-};
-
-/**
- * struct qcom_icc_node - Qualcomm specific interconnect nodes
- * @name: the node name used in debugfs
- * @id: a unique node identifier
- * @links: an array of nodes where we can go next while traversing
- * @num_links: the total number of @links
- * @buswidth: width of the interconnect between a node and the bus (bytes)
- * @mas_rpm_id: RPM id for devices that are bus masters
- * @slv_rpm_id: RPM id for devices that are bus slaves
- * @qos: NoC QoS setting parameters
- * @rate: current bus clock rate in Hz
- */
-struct qcom_icc_node {
- unsigned char *name;
- u16 id;
- const u16 *links;
- u16 num_links;
- u16 buswidth;
- int mas_rpm_id;
- int slv_rpm_id;
- struct qcom_icc_qos qos;
- u64 rate;
-};
-
-struct qcom_icc_desc {
- struct qcom_icc_node **nodes;
- size_t num_nodes;
- const struct regmap_config *regmap_cfg;
+static const char * bus_a2noc_clocks[] = {
+ "bus",
+ "bus_a",
+ "ipa",
+ "ufs_axi",
+ "aggre2_ufs_axi",
+ "aggre2_usb3_axi",
+ "cfg_noc_usb2_axi",
};
static const u16 mas_ipa_links[] = {
@@ -1622,6 +1515,8 @@ static const struct regmap_config sdm660_a2noc_regmap_config = {
static struct qcom_icc_desc sdm660_a2noc = {
.nodes = sdm660_a2noc_nodes,
.num_nodes = ARRAY_SIZE(sdm660_a2noc_nodes),
+ .clocks = bus_a2noc_clocks,
+ .num_clocks = ARRAY_SIZE(bus_a2noc_clocks),
.regmap_cfg = &sdm660_a2noc_regmap_config,
};
@@ -1647,6 +1542,7 @@ static const struct regmap_config sdm660_bimc_regmap_config = {
static struct qcom_icc_desc sdm660_bimc = {
.nodes = sdm660_bimc_nodes,
.num_nodes = ARRAY_SIZE(sdm660_bimc_nodes),
+ .is_bimc_node = true,
.regmap_cfg = &sdm660_bimc_regmap_config,
};
@@ -1759,6 +1655,8 @@ static const struct regmap_config sdm660_mnoc_regmap_config = {
static struct qcom_icc_desc sdm660_mnoc = {
.nodes = sdm660_mnoc_nodes,
.num_nodes = ARRAY_SIZE(sdm660_mnoc_nodes),
+ .clocks = bus_mm_clocks,
+ .num_clocks = ARRAY_SIZE(bus_mm_clocks),
.regmap_cfg = &sdm660_mnoc_regmap_config,
};
@@ -1796,353 +1694,6 @@ static struct qcom_icc_desc sdm660_snoc = {
.regmap_cfg = &sdm660_snoc_regmap_config,
};
-static int qcom_icc_bimc_set_qos_health(struct regmap *rmap,
- struct qcom_icc_qos *qos,
- int regnum)
-{
- u32 val;
- u32 mask;
-
- val = qos->prio_level;
- mask = M_BKE_HEALTH_CFG_PRIOLVL_MASK;
-
- val |= qos->areq_prio << M_BKE_HEALTH_CFG_AREQPRIO_SHIFT;
- mask |= M_BKE_HEALTH_CFG_AREQPRIO_MASK;
-
- /* LIMITCMDS is not present on M_BKE_HEALTH_3 */
- if (regnum != 3) {
- val |= qos->limit_commands << M_BKE_HEALTH_CFG_LIMITCMDS_SHIFT;
- mask |= M_BKE_HEALTH_CFG_LIMITCMDS_MASK;
- }
-
- return regmap_update_bits(rmap,
- M_BKE_HEALTH_CFG_ADDR(regnum, qos->qos_port),
- mask, val);
-}
-
-static int qcom_icc_set_bimc_qos(struct icc_node *src, u64 max_bw,
- bool bypass_mode)
-{
- struct qcom_icc_provider *qp;
- struct qcom_icc_node *qn;
- struct icc_provider *provider;
- u32 mode = NOC_QOS_MODE_BYPASS;
- u32 val = 0;
- int i, rc = 0;
-
- qn = src->data;
- provider = src->provider;
- qp = to_qcom_provider(provider);
-
- if (qn->qos.qos_mode != NOC_QOS_MODE_INVALID)
- mode = qn->qos.qos_mode;
-
- /* QoS Priority: The QoS Health parameters are getting considered
- * only if we are NOT in Bypass Mode.
- */
- if (mode != NOC_QOS_MODE_BYPASS) {
- for (i = 3; i >= 0; i--) {
- rc = qcom_icc_bimc_set_qos_health(qp->regmap,
- &qn->qos, i);
- if (rc)
- return rc;
- }
-
- /* Set BKE_EN to 1 when Fixed, Regulator or Limiter Mode */
- val = 1;
- }
-
- return regmap_update_bits(qp->regmap, M_BKE_EN_ADDR(qn->qos.qos_port),
- M_BKE_EN_EN_BMASK, val);
-}
-
-static int qcom_icc_noc_set_qos_priority(struct regmap *rmap,
- struct qcom_icc_qos *qos)
-{
- u32 val;
- int rc;
-
- /* Must be updated one at a time, P1 first, P0 last */
- val = qos->areq_prio << NOC_QOS_PRIORITY_P1_SHIFT;
- rc = regmap_update_bits(rmap, NOC_QOS_PRIORITYn_ADDR(qos->qos_port),
- NOC_QOS_PRIORITY_P1_MASK, val);
- if (rc)
- return rc;
-
- return regmap_update_bits(rmap, NOC_QOS_PRIORITYn_ADDR(qos->qos_port),
- NOC_QOS_PRIORITY_P0_MASK, qos->prio_level);
-}
-
-static int qcom_icc_set_noc_qos(struct icc_node *src, u64 max_bw)
-{
- struct qcom_icc_provider *qp;
- struct qcom_icc_node *qn;
- struct icc_provider *provider;
- u32 mode = NOC_QOS_MODE_BYPASS;
- int rc = 0;
-
- qn = src->data;
- provider = src->provider;
- qp = to_qcom_provider(provider);
-
- if (qn->qos.qos_port < 0) {
- dev_dbg(src->provider->dev,
- "NoC QoS: Skipping %s: vote aggregated on parent.\n",
- qn->name);
- return 0;
- }
-
- if (qn->qos.qos_mode != NOC_QOS_MODE_INVALID)
- mode = qn->qos.qos_mode;
-
- if (mode == NOC_QOS_MODE_FIXED) {
- dev_dbg(src->provider->dev, "NoC QoS: %s: Set Fixed mode\n",
- qn->name);
- rc = qcom_icc_noc_set_qos_priority(qp->regmap, &qn->qos);
- if (rc)
- return rc;
- } else if (mode == NOC_QOS_MODE_BYPASS) {
- dev_dbg(src->provider->dev, "NoC QoS: %s: Set Bypass mode\n",
- qn->name);
- }
-
- return regmap_update_bits(qp->regmap,
- NOC_QOS_MODEn_ADDR(qn->qos.qos_port),
- NOC_QOS_MODEn_MASK, mode);
-}
-
-static int qcom_icc_qos_set(struct icc_node *node, u64 sum_bw)
-{
- struct qcom_icc_provider *qp = to_qcom_provider(node->provider);
- struct qcom_icc_node *qn = node->data;
-
- dev_dbg(node->provider->dev, "Setting QoS for %s\n", qn->name);
-
- if (qp->is_bimc_node)
- return qcom_icc_set_bimc_qos(node, sum_bw,
- (qn->qos.qos_mode == NOC_QOS_MODE_BYPASS));
-
- return qcom_icc_set_noc_qos(node, sum_bw);
-}
-
-static int qcom_icc_rpm_set(int mas_rpm_id, int slv_rpm_id, u64 sum_bw)
-{
- int ret = 0;
-
- if (mas_rpm_id != -1) {
- ret = qcom_icc_rpm_smd_send(QCOM_SMD_RPM_ACTIVE_STATE,
- RPM_BUS_MASTER_REQ,
- mas_rpm_id,
- sum_bw);
- if (ret) {
- pr_err("qcom_icc_rpm_smd_send mas %d error %d\n",
- mas_rpm_id, ret);
- return ret;
- }
- }
-
- if (slv_rpm_id != -1) {
- ret = qcom_icc_rpm_smd_send(QCOM_SMD_RPM_ACTIVE_STATE,
- RPM_BUS_SLAVE_REQ,
- slv_rpm_id,
- sum_bw);
- if (ret) {
- pr_err("qcom_icc_rpm_smd_send slv %d error %d\n",
- slv_rpm_id, ret);
- return ret;
- }
- }
-
- return ret;
-}
-
-static int qcom_icc_set(struct icc_node *src, struct icc_node *dst)
-{
- struct qcom_icc_provider *qp;
- struct qcom_icc_node *qn;
- struct icc_provider *provider;
- struct icc_node *n;
- u64 sum_bw;
- u64 max_peak_bw;
- u64 rate;
- u32 agg_avg = 0;
- u32 agg_peak = 0;
- int ret, i;
-
- qn = src->data;
- provider = src->provider;
- qp = to_qcom_provider(provider);
-
- list_for_each_entry(n, &provider->nodes, node_list)
- provider->aggregate(n, 0, n->avg_bw, n->peak_bw,
- &agg_avg, &agg_peak);
-
- sum_bw = icc_units_to_bps(agg_avg);
- max_peak_bw = icc_units_to_bps(agg_peak);
-
- if (!qn->qos.ap_owned) {
- /* send bandwidth request message to the RPM processor */
- ret = qcom_icc_rpm_set(qn->mas_rpm_id, qn->slv_rpm_id, sum_bw);
- if (ret)
- return ret;
- } else if (qn->qos.qos_mode != NOC_QOS_MODE_INVALID) {
- /* set bandwidth directly from the AP */
- ret = qcom_icc_qos_set(src, sum_bw);
- if (ret)
- return ret;
- }
-
- rate = max(sum_bw, max_peak_bw);
-
- do_div(rate, qn->buswidth);
-
- if (qn->rate == rate)
- return 0;
-
- for (i = 0; i < qp->num_clks; i++) {
- ret = clk_set_rate(qp->bus_clks[i].clk, rate);
- if (ret) {
- pr_err("%s clk_set_rate error: %d\n",
- qp->bus_clks[i].id, ret);
- return ret;
- }
- }
-
- qn->rate = rate;
-
- return 0;
-}
-
-static int qnoc_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- const struct qcom_icc_desc *desc;
- struct icc_onecell_data *data;
- struct icc_provider *provider;
- struct qcom_icc_node **qnodes;
- struct qcom_icc_provider *qp;
- struct icc_node *node;
- struct resource *res;
- size_t num_nodes, i;
- int ret;
-
- /* wait for the RPM proxy */
- if (!qcom_icc_rpm_smd_available())
- return -EPROBE_DEFER;
-
- desc = of_device_get_match_data(dev);
- if (!desc)
- return -EINVAL;
-
- qnodes = desc->nodes;
- num_nodes = desc->num_nodes;
-
- qp = devm_kzalloc(dev, sizeof(*qp), GFP_KERNEL);
- if (!qp)
- return -ENOMEM;
-
- data = devm_kzalloc(dev, struct_size(data, nodes, num_nodes),
- GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- if (of_device_is_compatible(dev->of_node, "qcom,sdm660-mnoc")) {
- qp->bus_clks = devm_kmemdup(dev, bus_mm_clocks,
- sizeof(bus_mm_clocks), GFP_KERNEL);
- qp->num_clks = ARRAY_SIZE(bus_mm_clocks);
- } else if (of_device_is_compatible(dev->of_node, "qcom,sdm660-a2noc")) {
- qp->bus_clks = devm_kmemdup(dev, bus_a2noc_clocks,
- sizeof(bus_a2noc_clocks), GFP_KERNEL);
- qp->num_clks = ARRAY_SIZE(bus_a2noc_clocks);
- } else {
- if (of_device_is_compatible(dev->of_node, "qcom,sdm660-bimc"))
- qp->is_bimc_node = true;
-
- qp->bus_clks = devm_kmemdup(dev, bus_clocks, sizeof(bus_clocks),
- GFP_KERNEL);
- qp->num_clks = ARRAY_SIZE(bus_clocks);
- }
- if (!qp->bus_clks)
- return -ENOMEM;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENODEV;
-
- qp->mmio = devm_ioremap_resource(dev, res);
- if (IS_ERR(qp->mmio)) {
- dev_err(dev, "Cannot ioremap interconnect bus resource\n");
- return PTR_ERR(qp->mmio);
- }
-
- qp->regmap = devm_regmap_init_mmio(dev, qp->mmio, desc->regmap_cfg);
- if (IS_ERR(qp->regmap)) {
- dev_err(dev, "Cannot regmap interconnect bus resource\n");
- return PTR_ERR(qp->regmap);
- }
-
- ret = devm_clk_bulk_get(dev, qp->num_clks, qp->bus_clks);
- if (ret)
- return ret;
-
- ret = clk_bulk_prepare_enable(qp->num_clks, qp->bus_clks);
- if (ret)
- return ret;
-
- provider = &qp->provider;
- INIT_LIST_HEAD(&provider->nodes);
- provider->dev = dev;
- provider->set = qcom_icc_set;
- provider->aggregate = icc_std_aggregate;
- provider->xlate = of_icc_xlate_onecell;
- provider->data = data;
-
- ret = icc_provider_add(provider);
- if (ret) {
- dev_err(dev, "error adding interconnect provider: %d\n", ret);
- clk_bulk_disable_unprepare(qp->num_clks, qp->bus_clks);
- return ret;
- }
-
- for (i = 0; i < num_nodes; i++) {
- size_t j;
-
- node = icc_node_create(qnodes[i]->id);
- if (IS_ERR(node)) {
- ret = PTR_ERR(node);
- goto err;
- }
-
- node->name = qnodes[i]->name;
- node->data = qnodes[i];
- icc_node_add(node, provider);
-
- for (j = 0; j < qnodes[i]->num_links; j++)
- icc_link_create(node, qnodes[i]->links[j]);
-
- data->nodes[i] = node;
- }
- data->num_nodes = num_nodes;
- platform_set_drvdata(pdev, qp);
-
- return 0;
-err:
- icc_nodes_remove(provider);
- clk_bulk_disable_unprepare(qp->num_clks, qp->bus_clks);
- icc_provider_del(provider);
-
- return ret;
-}
-
-static int qnoc_remove(struct platform_device *pdev)
-{
- struct qcom_icc_provider *qp = platform_get_drvdata(pdev);
-
- icc_nodes_remove(&qp->provider);
- clk_bulk_disable_unprepare(qp->num_clks, qp->bus_clks);
- return icc_provider_del(&qp->provider);
-}
-
static const struct of_device_id sdm660_noc_of_match[] = {
{ .compatible = "qcom,sdm660-a2noc", .data = &sdm660_a2noc },
{ .compatible = "qcom,sdm660-bimc", .data = &sdm660_bimc },
