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interconnect: sdm660: merge common code into icc-rpm

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Other RPM interconnect drivers might also use QoS support. Move AP-owned
nodes support from SDM660 driver to common icc-rpm.c.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Tested-by: Marijn Suijten <marijn.suijten@somainline.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20210903232421.1384199-5-dmitry.baryshkov@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
This commit is contained in:
Dmitry Baryshkov 2021-09-04 02:24:14 +03:00 committed by Georgi Djakov
parent 656ba110e1
commit 2b6c7d6451
3 changed files with 275 additions and 495 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

243
drivers/interconnect/qcom/icc-rpm.c
View File

@ -11,11 +11,192 @@
#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"
/* 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;
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 != -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;
}
/* 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);
}
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,
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;
@ -40,29 +221,16 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst)
sum_bw = icc_units_to_bps(agg_avg);
max_peak_bw = icc_units_to_bps(agg_peak);
/* send bandwidth request message to the RPM processor */
if (qn->mas_rpm_id != -1) {
ret = qcom_icc_rpm_smd_send(QCOM_SMD_RPM_ACTIVE_STATE,
RPM_BUS_MASTER_REQ,
qn->mas_rpm_id,
sum_bw);
if (ret) {
pr_err("qcom_icc_rpm_smd_send mas %d error %d\n",
qn->mas_rpm_id, ret);
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;
}
}
if (qn->slv_rpm_id != -1) {
ret = qcom_icc_rpm_smd_send(QCOM_SMD_RPM_ACTIVE_STATE,
RPM_BUS_SLAVE_REQ,
qn->slv_rpm_id,
sum_bw);
if (ret) {
pr_err("qcom_icc_rpm_smd_send slv %d error %d\n",
qn->slv_rpm_id, 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);
@ -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;

42
drivers/interconnect/qcom/icc-rpm.h
View File

@ -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 * const *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);

485
drivers/interconnect/qcom/sdm660.c
View File

@ -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 * const 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 * const 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 },