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-rw-r--r--drivers/interconnect/core.c27
-rw-r--r--drivers/interconnect/qcom/Kconfig12
-rw-r--r--drivers/interconnect/qcom/Makefile4
-rw-r--r--drivers/interconnect/qcom/qcs404.c539
-rw-r--r--drivers/interconnect/qcom/sdm845.c160
-rw-r--r--drivers/interconnect/qcom/smd-rpm.c77
-rw-r--r--drivers/interconnect/qcom/smd-rpm.h15
7 files changed, 783 insertions, 51 deletions
diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c
index 871eb4bc4efc..7b971228df38 100644
--- a/drivers/interconnect/core.c
+++ b/drivers/interconnect/core.c
@@ -29,6 +29,7 @@ static struct dentry *icc_debugfs_dir;
* @req_node: entry in list of requests for the particular @node
* @node: the interconnect node to which this constraint applies
* @dev: reference to the device that sets the constraints
+ * @tag: path tag (optional)
* @avg_bw: an integer describing the average bandwidth in kBps
* @peak_bw: an integer describing the peak bandwidth in kBps
*/
@@ -36,6 +37,7 @@ struct icc_req {
struct hlist_node req_node;
struct icc_node *node;
struct device *dev;
+ u32 tag;
u32 avg_bw;
u32 peak_bw;
};
@@ -203,8 +205,11 @@ static int aggregate_requests(struct icc_node *node)
node->avg_bw = 0;
node->peak_bw = 0;
+ if (p->pre_aggregate)
+ p->pre_aggregate(node);
+
hlist_for_each_entry(r, &node->req_list, req_node)
- p->aggregate(node, r->avg_bw, r->peak_bw,
+ p->aggregate(node, r->tag, r->avg_bw, r->peak_bw,
&node->avg_bw, &node->peak_bw);
return 0;
@@ -386,6 +391,26 @@ struct icc_path *of_icc_get(struct device *dev, const char *name)
EXPORT_SYMBOL_GPL(of_icc_get);
/**
+ * icc_set_tag() - set an optional tag on a path
+ * @path: the path we want to tag
+ * @tag: the tag value
+ *
+ * This function allows consumers to append a tag to the requests associated
+ * with a path, so that a different aggregation could be done based on this tag.
+ */
+void icc_set_tag(struct icc_path *path, u32 tag)
+{
+ int i;
+
+ if (!path)
+ return;
+
+ for (i = 0; i < path->num_nodes; i++)
+ path->reqs[i].tag = tag;
+}
+EXPORT_SYMBOL_GPL(icc_set_tag);
+
+/**
* icc_set_bw() - set bandwidth constraints on an interconnect path
* @path: reference to the path returned by icc_get()
* @avg_bw: average bandwidth in kilobytes per second
diff --git a/drivers/interconnect/qcom/Kconfig b/drivers/interconnect/qcom/Kconfig
index d5e70ebc2410..6ab4012a059a 100644
--- a/drivers/interconnect/qcom/Kconfig
+++ b/drivers/interconnect/qcom/Kconfig
@@ -5,6 +5,15 @@ config INTERCONNECT_QCOM
help
Support for Qualcomm's Network-on-Chip interconnect hardware.
+config INTERCONNECT_QCOM_QCS404
+ tristate "Qualcomm QCS404 interconnect driver"
+ depends on INTERCONNECT_QCOM
+ depends on QCOM_SMD_RPM
+ select INTERCONNECT_QCOM_SMD_RPM
+ help
+ This is a driver for the Qualcomm Network-on-Chip on qcs404-based
+ platforms.
+
config INTERCONNECT_QCOM_SDM845
tristate "Qualcomm SDM845 interconnect driver"
depends on INTERCONNECT_QCOM
@@ -12,3 +21,6 @@ config INTERCONNECT_QCOM_SDM845
help
This is a driver for the Qualcomm Network-on-Chip on sdm845-based
platforms.
+
+config INTERCONNECT_QCOM_SMD_RPM
+ tristate
diff --git a/drivers/interconnect/qcom/Makefile b/drivers/interconnect/qcom/Makefile
index 1c1cea690f92..67dafb783dec 100644
--- a/drivers/interconnect/qcom/Makefile
+++ b/drivers/interconnect/qcom/Makefile
@@ -1,5 +1,9 @@
# SPDX-License-Identifier: GPL-2.0
+qnoc-qcs404-objs := qcs404.o
qnoc-sdm845-objs := sdm845.o
+icc-smd-rpm-objs := smd-rpm.o
+obj-$(CONFIG_INTERCONNECT_QCOM_QCS404) += qnoc-qcs404.o
obj-$(CONFIG_INTERCONNECT_QCOM_SDM845) += qnoc-sdm845.o
+obj-$(CONFIG_INTERCONNECT_QCOM_SMD_RPM) += icc-smd-rpm.o
diff --git a/drivers/interconnect/qcom/qcs404.c b/drivers/interconnect/qcom/qcs404.c
new file mode 100644
index 000000000000..910081d6ddc0
--- /dev/null
+++ b/drivers/interconnect/qcom/qcs404.c
@@ -0,0 +1,539 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 Linaro Ltd
+ */
+
+#include <dt-bindings/interconnect/qcom,qcs404.h>
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/interconnect-provider.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include "smd-rpm.h"
+
+#define RPM_BUS_MASTER_REQ 0x73616d62
+#define RPM_BUS_SLAVE_REQ 0x766c7362
+
+enum {
+ QCS404_MASTER_AMPSS_M0 = 1,
+ QCS404_MASTER_GRAPHICS_3D,
+ QCS404_MASTER_MDP_PORT0,
+ QCS404_SNOC_BIMC_1_MAS,
+ QCS404_MASTER_TCU_0,
+ QCS404_MASTER_SPDM,
+ QCS404_MASTER_BLSP_1,
+ QCS404_MASTER_BLSP_2,
+ QCS404_MASTER_XM_USB_HS1,
+ QCS404_MASTER_CRYPTO_CORE0,
+ QCS404_MASTER_SDCC_1,
+ QCS404_MASTER_SDCC_2,
+ QCS404_SNOC_PNOC_MAS,
+ QCS404_MASTER_QPIC,
+ QCS404_MASTER_QDSS_BAM,
+ QCS404_BIMC_SNOC_MAS,
+ QCS404_PNOC_SNOC_MAS,
+ QCS404_MASTER_QDSS_ETR,
+ QCS404_MASTER_EMAC,
+ QCS404_MASTER_PCIE,
+ QCS404_MASTER_USB3,
+ QCS404_PNOC_INT_0,
+ QCS404_PNOC_INT_2,
+ QCS404_PNOC_INT_3,
+ QCS404_PNOC_SLV_0,
+ QCS404_PNOC_SLV_1,
+ QCS404_PNOC_SLV_2,
+ QCS404_PNOC_SLV_3,
+ QCS404_PNOC_SLV_4,
+ QCS404_PNOC_SLV_6,
+ QCS404_PNOC_SLV_7,
+ QCS404_PNOC_SLV_8,
+ QCS404_PNOC_SLV_9,
+ QCS404_PNOC_SLV_10,
+ QCS404_PNOC_SLV_11,
+ QCS404_SNOC_QDSS_INT,
+ QCS404_SNOC_INT_0,
+ QCS404_SNOC_INT_1,
+ QCS404_SNOC_INT_2,
+ QCS404_SLAVE_EBI_CH0,
+ QCS404_BIMC_SNOC_SLV,
+ QCS404_SLAVE_SPDM_WRAPPER,
+ QCS404_SLAVE_PDM,
+ QCS404_SLAVE_PRNG,
+ QCS404_SLAVE_TCSR,
+ QCS404_SLAVE_SNOC_CFG,
+ QCS404_SLAVE_MESSAGE_RAM,
+ QCS404_SLAVE_DISPLAY_CFG,
+ QCS404_SLAVE_GRAPHICS_3D_CFG,
+ QCS404_SLAVE_BLSP_1,
+ QCS404_SLAVE_TLMM_NORTH,
+ QCS404_SLAVE_PCIE_1,
+ QCS404_SLAVE_EMAC_CFG,
+ QCS404_SLAVE_BLSP_2,
+ QCS404_SLAVE_TLMM_EAST,
+ QCS404_SLAVE_TCU,
+ QCS404_SLAVE_PMIC_ARB,
+ QCS404_SLAVE_SDCC_1,
+ QCS404_SLAVE_SDCC_2,
+ QCS404_SLAVE_TLMM_SOUTH,
+ QCS404_SLAVE_USB_HS,
+ QCS404_SLAVE_USB3,
+ QCS404_SLAVE_CRYPTO_0_CFG,
+ QCS404_PNOC_SNOC_SLV,
+ QCS404_SLAVE_APPSS,
+ QCS404_SLAVE_WCSS,
+ QCS404_SNOC_BIMC_1_SLV,
+ QCS404_SLAVE_OCIMEM,
+ QCS404_SNOC_PNOC_SLV,
+ QCS404_SLAVE_QDSS_STM,
+ QCS404_SLAVE_CATS_128,
+ QCS404_SLAVE_OCMEM_64,
+ QCS404_SLAVE_LPASS,
+};
+
+#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" },
+};
+
+/**
+ * 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
+ */
+struct qcom_icc_provider {
+ struct icc_provider provider;
+ struct clk_bulk_data *bus_clks;
+ int num_clks;
+};
+
+#define QCS404_MAX_LINKS 12
+
+/**
+ * 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
+ * @rate: current bus clock rate in Hz
+ */
+struct qcom_icc_node {
+ unsigned char *name;
+ u16 id;
+ u16 links[QCS404_MAX_LINKS];
+ u16 num_links;
+ u16 buswidth;
+ int mas_rpm_id;
+ int slv_rpm_id;
+ u64 rate;
+};
+
+struct qcom_icc_desc {
+ struct qcom_icc_node **nodes;
+ size_t num_nodes;
+};
+
+#define DEFINE_QNODE(_name, _id, _buswidth, _mas_rpm_id, _slv_rpm_id, \
+ ...) \
+ 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__ }, \
+ }
+
+DEFINE_QNODE(mas_apps_proc, QCS404_MASTER_AMPSS_M0, 8, 0, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
+DEFINE_QNODE(mas_oxili, QCS404_MASTER_GRAPHICS_3D, 8, 6, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
+DEFINE_QNODE(mas_mdp, QCS404_MASTER_MDP_PORT0, 8, 8, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
+DEFINE_QNODE(mas_snoc_bimc_1, QCS404_SNOC_BIMC_1_MAS, 8, 76, -1, QCS404_SLAVE_EBI_CH0);
+DEFINE_QNODE(mas_tcu_0, QCS404_MASTER_TCU_0, 8, -1, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV);
+DEFINE_QNODE(mas_spdm, QCS404_MASTER_SPDM, 4, -1, -1, QCS404_PNOC_INT_3);
+DEFINE_QNODE(mas_blsp_1, QCS404_MASTER_BLSP_1, 4, 41, -1, QCS404_PNOC_INT_3);
+DEFINE_QNODE(mas_blsp_2, QCS404_MASTER_BLSP_2, 4, 39, -1, QCS404_PNOC_INT_3);
+DEFINE_QNODE(mas_xi_usb_hs1, QCS404_MASTER_XM_USB_HS1, 8, 138, -1, QCS404_PNOC_INT_0);
+DEFINE_QNODE(mas_crypto, QCS404_MASTER_CRYPTO_CORE0, 8, 23, -1, QCS404_PNOC_SNOC_SLV, QCS404_PNOC_INT_2);
+DEFINE_QNODE(mas_sdcc_1, QCS404_MASTER_SDCC_1, 8, 33, -1, QCS404_PNOC_INT_0);
+DEFINE_QNODE(mas_sdcc_2, QCS404_MASTER_SDCC_2, 8, 35, -1, QCS404_PNOC_INT_0);
+DEFINE_QNODE(mas_snoc_pcnoc, QCS404_SNOC_PNOC_MAS, 8, 77, -1, QCS404_PNOC_INT_2);
+DEFINE_QNODE(mas_qpic, QCS404_MASTER_QPIC, 4, -1, -1, QCS404_PNOC_INT_0);
+DEFINE_QNODE(mas_qdss_bam, QCS404_MASTER_QDSS_BAM, 4, -1, -1, QCS404_SNOC_QDSS_INT);
+DEFINE_QNODE(mas_bimc_snoc, QCS404_BIMC_SNOC_MAS, 8, 21, -1, QCS404_SLAVE_OCMEM_64, QCS404_SLAVE_CATS_128, QCS404_SNOC_INT_0, QCS404_SNOC_INT_1);
+DEFINE_QNODE(mas_pcnoc_snoc, QCS404_PNOC_SNOC_MAS, 8, 29, -1, QCS404_SNOC_BIMC_1_SLV, QCS404_SNOC_INT_2, QCS404_SNOC_INT_0);
+DEFINE_QNODE(mas_qdss_etr, QCS404_MASTER_QDSS_ETR, 8, -1, -1, QCS404_SNOC_QDSS_INT);
+DEFINE_QNODE(mas_emac, QCS404_MASTER_EMAC, 8, -1, -1, QCS404_SNOC_BIMC_1_SLV, QCS404_SNOC_INT_1);
+DEFINE_QNODE(mas_pcie, QCS404_MASTER_PCIE, 8, -1, -1, QCS404_SNOC_BIMC_1_SLV, QCS404_SNOC_INT_1);
+DEFINE_QNODE(mas_usb3, QCS404_MASTER_USB3, 8, -1, -1, QCS404_SNOC_BIMC_1_SLV, QCS404_SNOC_INT_1);
+DEFINE_QNODE(pcnoc_int_0, QCS404_PNOC_INT_0, 8, 85, 114, QCS404_PNOC_SNOC_SLV, QCS404_PNOC_INT_2);
+DEFINE_QNODE(pcnoc_int_2, QCS404_PNOC_INT_2, 8, 124, 184, QCS404_PNOC_SLV_10, QCS404_SLAVE_TCU, QCS404_PNOC_SLV_11, QCS404_PNOC_SLV_2, QCS404_PNOC_SLV_3, QCS404_PNOC_SLV_0, QCS404_PNOC_SLV_1, QCS404_PNOC_SLV_6, QCS404_PNOC_SLV_7, QCS404_PNOC_SLV_4, QCS404_PNOC_SLV_8, QCS404_PNOC_SLV_9);
+DEFINE_QNODE(pcnoc_int_3, QCS404_PNOC_INT_3, 8, 125, 185, QCS404_PNOC_SNOC_SLV);
+DEFINE_QNODE(pcnoc_s_0, QCS404_PNOC_SLV_0, 4, 89, 118, QCS404_SLAVE_PRNG, QCS404_SLAVE_SPDM_WRAPPER, QCS404_SLAVE_PDM);
+DEFINE_QNODE(pcnoc_s_1, QCS404_PNOC_SLV_1, 4, 90, 119, QCS404_SLAVE_TCSR);
+DEFINE_QNODE(pcnoc_s_2, QCS404_PNOC_SLV_2, 4, -1, -1, QCS404_SLAVE_GRAPHICS_3D_CFG);
+DEFINE_QNODE(pcnoc_s_3, QCS404_PNOC_SLV_3, 4, 92, 121, QCS404_SLAVE_MESSAGE_RAM);
+DEFINE_QNODE(pcnoc_s_4, QCS404_PNOC_SLV_4, 4, 93, 122, QCS404_SLAVE_SNOC_CFG);
+DEFINE_QNODE(pcnoc_s_6, QCS404_PNOC_SLV_6, 4, 94, 123, QCS404_SLAVE_BLSP_1, QCS404_SLAVE_TLMM_NORTH, QCS404_SLAVE_EMAC_CFG);
+DEFINE_QNODE(pcnoc_s_7, QCS404_PNOC_SLV_7, 4, 95, 124, QCS404_SLAVE_TLMM_SOUTH, QCS404_SLAVE_DISPLAY_CFG, QCS404_SLAVE_SDCC_1, QCS404_SLAVE_PCIE_1, QCS404_SLAVE_SDCC_2);
+DEFINE_QNODE(pcnoc_s_8, QCS404_PNOC_SLV_8, 4, 96, 125, QCS404_SLAVE_CRYPTO_0_CFG);
+DEFINE_QNODE(pcnoc_s_9, QCS404_PNOC_SLV_9, 4, 97, 126, QCS404_SLAVE_BLSP_2, QCS404_SLAVE_TLMM_EAST, QCS404_SLAVE_PMIC_ARB);
+DEFINE_QNODE(pcnoc_s_10, QCS404_PNOC_SLV_10, 4, 157, -1, QCS404_SLAVE_USB_HS);
+DEFINE_QNODE(pcnoc_s_11, QCS404_PNOC_SLV_11, 4, 158, 246, QCS404_SLAVE_USB3);
+DEFINE_QNODE(qdss_int, QCS404_SNOC_QDSS_INT, 8, -1, -1, QCS404_SNOC_BIMC_1_SLV, QCS404_SNOC_INT_1);
+DEFINE_QNODE(snoc_int_0, QCS404_SNOC_INT_0, 8, 99, 130, QCS404_SLAVE_LPASS, QCS404_SLAVE_APPSS, QCS404_SLAVE_WCSS);
+DEFINE_QNODE(snoc_int_1, QCS404_SNOC_INT_1, 8, 100, 131, QCS404_SNOC_PNOC_SLV, QCS404_SNOC_INT_2);
+DEFINE_QNODE(snoc_int_2, QCS404_SNOC_INT_2, 8, 134, 197, QCS404_SLAVE_QDSS_STM, QCS404_SLAVE_OCIMEM);
+DEFINE_QNODE(slv_ebi, QCS404_SLAVE_EBI_CH0, 8, -1, 0, 0);
+DEFINE_QNODE(slv_bimc_snoc, QCS404_BIMC_SNOC_SLV, 8, -1, 2, QCS404_BIMC_SNOC_MAS);
+DEFINE_QNODE(slv_spdm, QCS404_SLAVE_SPDM_WRAPPER, 4, -1, -1, 0);
+DEFINE_QNODE(slv_pdm, QCS404_SLAVE_PDM, 4, -1, 41, 0);
+DEFINE_QNODE(slv_prng, QCS404_SLAVE_PRNG, 4, -1, 44, 0);
+DEFINE_QNODE(slv_tcsr, QCS404_SLAVE_TCSR, 4, -1, 50, 0);
+DEFINE_QNODE(slv_snoc_cfg, QCS404_SLAVE_SNOC_CFG, 4, -1, 70, 0);
+DEFINE_QNODE(slv_message_ram, QCS404_SLAVE_MESSAGE_RAM, 4, -1, 55, 0);
+DEFINE_QNODE(slv_disp_ss_cfg, QCS404_SLAVE_DISPLAY_CFG, 4, -1, -1, 0);
+DEFINE_QNODE(slv_gpu_cfg, QCS404_SLAVE_GRAPHICS_3D_CFG, 4, -1, -1, 0);
+DEFINE_QNODE(slv_blsp_1, QCS404_SLAVE_BLSP_1, 4, -1, 39, 0);
+DEFINE_QNODE(slv_tlmm_north, QCS404_SLAVE_TLMM_NORTH, 4, -1, 214, 0);
+DEFINE_QNODE(slv_pcie, QCS404_SLAVE_PCIE_1, 4, -1, -1, 0);
+DEFINE_QNODE(slv_ethernet, QCS404_SLAVE_EMAC_CFG, 4, -1, -1, 0);
+DEFINE_QNODE(slv_blsp_2, QCS404_SLAVE_BLSP_2, 4, -1, 37, 0);
+DEFINE_QNODE(slv_tlmm_east, QCS404_SLAVE_TLMM_EAST, 4, -1, 213, 0);
+DEFINE_QNODE(slv_tcu, QCS404_SLAVE_TCU, 8, -1, -1, 0);
+DEFINE_QNODE(slv_pmic_arb, QCS404_SLAVE_PMIC_ARB, 4, -1, 59, 0);
+DEFINE_QNODE(slv_sdcc_1, QCS404_SLAVE_SDCC_1, 4, -1, 31, 0);
+DEFINE_QNODE(slv_sdcc_2, QCS404_SLAVE_SDCC_2, 4, -1, 33, 0);
+DEFINE_QNODE(slv_tlmm_south, QCS404_SLAVE_TLMM_SOUTH, 4, -1, -1, 0);
+DEFINE_QNODE(slv_usb_hs, QCS404_SLAVE_USB_HS, 4, -1, 40, 0);
+DEFINE_QNODE(slv_usb3, QCS404_SLAVE_USB3, 4, -1, 22, 0);
+DEFINE_QNODE(slv_crypto_0_cfg, QCS404_SLAVE_CRYPTO_0_CFG, 4, -1, 52, 0);
+DEFINE_QNODE(slv_pcnoc_snoc, QCS404_PNOC_SNOC_SLV, 8, -1, 45, QCS404_PNOC_SNOC_MAS);
+DEFINE_QNODE(slv_kpss_ahb, QCS404_SLAVE_APPSS, 4, -1, -1, 0);
+DEFINE_QNODE(slv_wcss, QCS404_SLAVE_WCSS, 4, -1, 23, 0);
+DEFINE_QNODE(slv_snoc_bimc_1, QCS404_SNOC_BIMC_1_SLV, 8, -1, 104, QCS404_SNOC_BIMC_1_MAS);
+DEFINE_QNODE(slv_imem, QCS404_SLAVE_OCIMEM, 8, -1, 26, 0);
+DEFINE_QNODE(slv_snoc_pcnoc, QCS404_SNOC_PNOC_SLV, 8, -1, 28, QCS404_SNOC_PNOC_MAS);
+DEFINE_QNODE(slv_qdss_stm, QCS404_SLAVE_QDSS_STM, 4, -1, 30, 0);
+DEFINE_QNODE(slv_cats_0, QCS404_SLAVE_CATS_128, 16, -1, -1, 0);
+DEFINE_QNODE(slv_cats_1, QCS404_SLAVE_OCMEM_64, 8, -1, -1, 0);
+DEFINE_QNODE(slv_lpass, QCS404_SLAVE_LPASS, 4, -1, -1, 0);
+
+static struct qcom_icc_node *qcs404_bimc_nodes[] = {
+ [MASTER_AMPSS_M0] = &mas_apps_proc,
+ [MASTER_OXILI] = &mas_oxili,
+ [MASTER_MDP_PORT0] = &mas_mdp,
+ [MASTER_SNOC_BIMC_1] = &mas_snoc_bimc_1,
+ [MASTER_TCU_0] = &mas_tcu_0,
+ [SLAVE_EBI_CH0] = &slv_ebi,
+ [SLAVE_BIMC_SNOC] = &slv_bimc_snoc,
+};
+
+static struct qcom_icc_desc qcs404_bimc = {
+ .nodes = qcs404_bimc_nodes,
+ .num_nodes = ARRAY_SIZE(qcs404_bimc_nodes),
+};
+
+static struct qcom_icc_node *qcs404_pcnoc_nodes[] = {
+ [MASTER_SPDM] = &mas_spdm,
+ [MASTER_BLSP_1] = &mas_blsp_1,
+ [MASTER_BLSP_2] = &mas_blsp_2,
+ [MASTER_XI_USB_HS1] = &mas_xi_usb_hs1,
+ [MASTER_CRYPT0] = &mas_crypto,
+ [MASTER_SDCC_1] = &mas_sdcc_1,
+ [MASTER_SDCC_2] = &mas_sdcc_2,
+ [MASTER_SNOC_PCNOC] = &mas_snoc_pcnoc,
+ [MASTER_QPIC] = &mas_qpic,
+ [PCNOC_INT_0] = &pcnoc_int_0,
+ [PCNOC_INT_2] = &pcnoc_int_2,
+ [PCNOC_INT_3] = &pcnoc_int_3,
+ [PCNOC_S_0] = &pcnoc_s_0,
+ [PCNOC_S_1] = &pcnoc_s_1,
+ [PCNOC_S_2] = &pcnoc_s_2,
+ [PCNOC_S_3] = &pcnoc_s_3,
+ [PCNOC_S_4] = &pcnoc_s_4,
+ [PCNOC_S_6] = &pcnoc_s_6,
+ [PCNOC_S_7] = &pcnoc_s_7,
+ [PCNOC_S_8] = &pcnoc_s_8,
+ [PCNOC_S_9] = &pcnoc_s_9,
+ [PCNOC_S_10] = &pcnoc_s_10,
+ [PCNOC_S_11] = &pcnoc_s_11,
+ [SLAVE_SPDM] = &slv_spdm,
+ [SLAVE_PDM] = &slv_pdm,
+ [SLAVE_PRNG] = &slv_prng,
+ [SLAVE_TCSR] = &slv_tcsr,
+ [SLAVE_SNOC_CFG] = &slv_snoc_cfg,
+ [SLAVE_MESSAGE_RAM] = &slv_message_ram,
+ [SLAVE_DISP_SS_CFG] = &slv_disp_ss_cfg,
+ [SLAVE_GPU_CFG] = &slv_gpu_cfg,
+ [SLAVE_BLSP_1] = &slv_blsp_1,
+ [SLAVE_BLSP_2] = &slv_blsp_2,
+ [SLAVE_TLMM_NORTH] = &slv_tlmm_north,
+ [SLAVE_PCIE] = &slv_pcie,
+ [SLAVE_ETHERNET] = &slv_ethernet,
+ [SLAVE_TLMM_EAST] = &slv_tlmm_east,
+ [SLAVE_TCU] = &slv_tcu,
+ [SLAVE_PMIC_ARB] = &slv_pmic_arb,
+ [SLAVE_SDCC_1] = &slv_sdcc_1,
+ [SLAVE_SDCC_2] = &slv_sdcc_2,
+ [SLAVE_TLMM_SOUTH] = &slv_tlmm_south,
+ [SLAVE_USB_HS] = &slv_usb_hs,
+ [SLAVE_USB3] = &slv_usb3,
+ [SLAVE_CRYPTO_0_CFG] = &slv_crypto_0_cfg,
+ [SLAVE_PCNOC_SNOC] = &slv_pcnoc_snoc,
+};
+
+static struct qcom_icc_desc qcs404_pcnoc = {
+ .nodes = qcs404_pcnoc_nodes,
+ .num_nodes = ARRAY_SIZE(qcs404_pcnoc_nodes),
+};
+
+static struct qcom_icc_node *qcs404_snoc_nodes[] = {
+ [MASTER_QDSS_BAM] = &mas_qdss_bam,
+ [MASTER_BIMC_SNOC] = &mas_bimc_snoc,
+ [MASTER_PCNOC_SNOC] = &mas_pcnoc_snoc,
+ [MASTER_QDSS_ETR] = &mas_qdss_etr,
+ [MASTER_EMAC] = &mas_emac,
+ [MASTER_PCIE] = &mas_pcie,
+ [MASTER_USB3] = &mas_usb3,
+ [QDSS_INT] = &qdss_int,
+ [SNOC_INT_0] = &snoc_int_0,
+ [SNOC_INT_1] = &snoc_int_1,
+ [SNOC_INT_2] = &snoc_int_2,
+ [SLAVE_KPSS_AHB] = &slv_kpss_ahb,
+ [SLAVE_WCSS] = &slv_wcss,
+ [SLAVE_SNOC_BIMC_1] = &slv_snoc_bimc_1,
+ [SLAVE_IMEM] = &slv_imem,
+ [SLAVE_SNOC_PCNOC] = &slv_snoc_pcnoc,
+ [SLAVE_QDSS_STM] = &slv_qdss_stm,
+ [SLAVE_CATS_0] = &slv_cats_0,
+ [SLAVE_CATS_1] = &slv_cats_1,
+ [SLAVE_LPASS] = &slv_lpass,
+};
+
+static struct qcom_icc_desc qcs404_snoc = {
+ .nodes = qcs404_snoc_nodes,
+ .num_nodes = ARRAY_SIZE(qcs404_snoc_nodes),
+};
+
+static int qcom_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
+ u32 peak_bw, u32 *agg_avg, u32 *agg_peak)
+{
+ *agg_avg += avg_bw;
+ *agg_peak = max(*agg_peak, peak_bw);
+
+ return 0;
+}
+
+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)
+ qcom_icc_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);
+
+ /* 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);
+ 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 error %d\n",
+ 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;
+ 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_kcalloc(dev, num_nodes, sizeof(*node), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ qp->bus_clks = devm_kmemdup(dev, bus_clocks, sizeof(bus_clocks),
+ GFP_KERNEL);
+ if (!qp->bus_clks)
+ return -ENOMEM;
+
+ qp->num_clks = ARRAY_SIZE(bus_clocks);
+ 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 = qcom_icc_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);
+
+ dev_dbg(dev, "registered node %s\n", node->name);
+
+ /* populate links */
+ 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:
+ list_for_each_entry(node, &provider->nodes, node_list) {
+ icc_node_del(node);
+ icc_node_destroy(node->id);
+ }
+ 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);
+ struct icc_provider *provider = &qp->provider;
+ struct icc_node *n;
+
+ list_for_each_entry(n, &provider->nodes, node_list) {
+ icc_node_del(n);
+ icc_node_destroy(n->id);
+ }
+ clk_bulk_disable_unprepare(qp->num_clks, qp->bus_clks);
+
+ return icc_provider_del(provider);
+}
+
+static const struct of_device_id qcs404_noc_of_match[] = {
+ { .compatible = "qcom,qcs404-bimc", .data = &qcs404_bimc },
+ { .compatible = "qcom,qcs404-pcnoc", .data = &qcs404_pcnoc },
+ { .compatible = "qcom,qcs404-snoc", .data = &qcs404_snoc },
+ { },
+};
+MODULE_DEVICE_TABLE(of, qcs404_noc_of_match);
+
+static struct platform_driver qcs404_noc_driver = {
+ .probe = qnoc_probe,
+ .remove = qnoc_remove,
+ .driver = {
+ .name = "qnoc-qcs404",
+ .of_match_table = qcs404_noc_of_match,
+ },
+};
+module_platform_driver(qcs404_noc_driver);
+MODULE_DESCRIPTION("Qualcomm QCS404 NoC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/interconnect/qcom/sdm845.c b/drivers/interconnect/qcom/sdm845.c
index 4915b78da673..57955596bb59 100644
--- a/drivers/interconnect/qcom/sdm845.c
+++ b/drivers/interconnect/qcom/sdm845.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
*
*/
@@ -20,23 +20,6 @@
#include <soc/qcom/rpmh.h>
#include <soc/qcom/tcs.h>
-#define BCM_TCS_CMD_COMMIT_SHFT 30
-#define BCM_TCS_CMD_COMMIT_MASK 0x40000000
-#define BCM_TCS_CMD_VALID_SHFT 29
-#define BCM_TCS_CMD_VALID_MASK 0x20000000
-#define BCM_TCS_CMD_VOTE_X_SHFT 14
-#define BCM_TCS_CMD_VOTE_MASK 0x3fff
-#define BCM_TCS_CMD_VOTE_Y_SHFT 0
-#define BCM_TCS_CMD_VOTE_Y_MASK 0xfffc000
-
-#define BCM_TCS_CMD(commit, valid, vote_x, vote_y) \
- (((commit) << BCM_TCS_CMD_COMMIT_SHFT) | \
- ((valid) << BCM_TCS_CMD_VALID_SHFT) | \
- ((cpu_to_le32(vote_x) & \
- BCM_TCS_CMD_VOTE_MASK) << BCM_TCS_CMD_VOTE_X_SHFT) | \
- ((cpu_to_le32(vote_y) & \
- BCM_TCS_CMD_VOTE_MASK) << BCM_TCS_CMD_VOTE_Y_SHFT))
-
#define to_qcom_provider(_provider) \
container_of(_provider, struct qcom_icc_provider, provider)
@@ -66,6 +49,22 @@ struct bcm_db {
#define SDM845_MAX_BCM_PER_NODE 2
#define SDM845_MAX_VCD 10
+/*
+ * The AMC bucket denotes constraints that are applied to hardware when
+ * icc_set_bw() completes, whereas the WAKE and SLEEP constraints are applied
+ * when the execution environment transitions between active and low power mode.
+ */
+#define QCOM_ICC_BUCKET_AMC 0
+#define QCOM_ICC_BUCKET_WAKE 1
+#define QCOM_ICC_BUCKET_SLEEP 2
+#define QCOM_ICC_NUM_BUCKETS 3
+#define QCOM_ICC_TAG_AMC BIT(QCOM_ICC_BUCKET_AMC)
+#define QCOM_ICC_TAG_WAKE BIT(QCOM_ICC_BUCKET_WAKE)
+#define QCOM_ICC_TAG_SLEEP BIT(QCOM_ICC_BUCKET_SLEEP)
+#define QCOM_ICC_TAG_ACTIVE_ONLY (QCOM_ICC_TAG_AMC | QCOM_ICC_TAG_WAKE)
+#define QCOM_ICC_TAG_ALWAYS (QCOM_ICC_TAG_AMC | QCOM_ICC_TAG_WAKE |\
+ QCOM_ICC_TAG_SLEEP)
+
/**
* struct qcom_icc_node - Qualcomm specific interconnect nodes
* @name: the node name used in debugfs
@@ -86,8 +85,8 @@ struct qcom_icc_node {
u16 num_links;
u16 channels;
u16 buswidth;
- u64 sum_avg;
- u64 max_peak;
+ u64 sum_avg[QCOM_ICC_NUM_BUCKETS];
+ u64 max_peak[QCOM_ICC_NUM_BUCKETS];
struct qcom_icc_bcm *bcms[SDM845_MAX_BCM_PER_NODE];
size_t num_bcms;
};
@@ -112,8 +111,8 @@ struct qcom_icc_bcm {
const char *name;
u32 type;
u32 addr;
- u64 vote_x;
- u64 vote_y;
+ u64 vote_x[QCOM_ICC_NUM_BUCKETS];
+ u64 vote_y[QCOM_ICC_NUM_BUCKETS];
bool dirty;
bool keepalive;
struct bcm_db aux_data;
@@ -555,7 +554,7 @@ inline void tcs_cmd_gen(struct tcs_cmd *cmd, u64 vote_x, u64 vote_y,
cmd->wait = true;
}
-static void tcs_list_gen(struct list_head *bcm_list,
+static void tcs_list_gen(struct list_head *bcm_list, int bucket,
struct tcs_cmd tcs_list[SDM845_MAX_VCD],
int n[SDM845_MAX_VCD])
{
@@ -573,8 +572,8 @@ static void tcs_list_gen(struct list_head *bcm_list,
commit = true;
cur_vcd_size = 0;
}
- tcs_cmd_gen(&tcs_list[idx], bcm->vote_x, bcm->vote_y,
- bcm->addr, commit);
+ tcs_cmd_gen(&tcs_list[idx], bcm->vote_x[bucket],
+ bcm->vote_y[bucket], bcm->addr, commit);
idx++;
n[batch]++;
/*
@@ -595,38 +594,56 @@ static void tcs_list_gen(struct list_head *bcm_list,
static void bcm_aggregate(struct qcom_icc_bcm *bcm)
{
- size_t i;
- u64 agg_avg = 0;
- u64 agg_peak = 0;
+ size_t i, bucket;
+ u64 agg_avg[QCOM_ICC_NUM_BUCKETS] = {0};
+ u64 agg_peak[QCOM_ICC_NUM_BUCKETS] = {0};
u64 temp;
- for (i = 0; i < bcm->num_nodes; i++) {
- temp = bcm->nodes[i]->sum_avg * bcm->aux_data.width;
- do_div(temp, bcm->nodes[i]->buswidth * bcm->nodes[i]->channels);
- agg_avg = max(agg_avg, temp);
+ for (bucket = 0; bucket < QCOM_ICC_NUM_BUCKETS; bucket++) {
+ for (i = 0; i < bcm->num_nodes; i++) {
+ temp = bcm->nodes[i]->sum_avg[bucket] * bcm->aux_data.width;
+ do_div(temp, bcm->nodes[i]->buswidth * bcm->nodes[i]->channels);
+ agg_avg[bucket] = max(agg_avg[bucket], temp);
- temp = bcm->nodes[i]->max_peak * bcm->aux_data.width;
- do_div(temp, bcm->nodes[i]->buswidth);
- agg_peak = max(agg_peak, temp);
- }
+ temp = bcm->nodes[i]->max_peak[bucket] * bcm->aux_data.width;
+ do_div(temp, bcm->nodes[i]->buswidth);
+ agg_peak[bucket] = max(agg_peak[bucket], temp);
+ }
- temp = agg_avg * 1000ULL;
- do_div(temp, bcm->aux_data.unit);
- bcm->vote_x = temp;
+ temp = agg_avg[bucket] * 1000ULL;
+ do_div(temp, bcm->aux_data.unit);
+ bcm->vote_x[bucket] = temp;
- temp = agg_peak * 1000ULL;
- do_div(temp, bcm->aux_data.unit);
- bcm->vote_y = temp;
+ temp = agg_peak[bucket] * 1000ULL;
+ do_div(temp, bcm->aux_data.unit);
+ bcm->vote_y[bucket] = temp;
+ }
- if (bcm->keepalive && bcm->vote_x == 0 && bcm->vote_y == 0) {
- bcm->vote_x = 1;
- bcm->vote_y = 1;
+ if (bcm->keepalive && bcm->vote_x[QCOM_ICC_BUCKET_AMC] == 0 &&
+ bcm->vote_y[QCOM_ICC_BUCKET_AMC] == 0) {
+ bcm->vote_x[QCOM_ICC_BUCKET_AMC] = 1;
+ bcm->vote_x[QCOM_ICC_BUCKET_WAKE] = 1;
+ bcm->vote_y[QCOM_ICC_BUCKET_AMC] = 1;
+ bcm->vote_y[QCOM_ICC_BUCKET_WAKE] = 1;
}
bcm->dirty = false;
}
-static int qcom_icc_aggregate(struct icc_node *node, u32 avg_bw,
+static void qcom_icc_pre_aggregate(struct icc_node *node)
+{
+ size_t i;
+ struct qcom_icc_node *qn;
+
+ qn = node->data;
+
+ for (i = 0; i < QCOM_ICC_NUM_BUCKETS; i++) {
+ qn->sum_avg[i] = 0;
+ qn->max_peak[i] = 0;
+ }
+}
+
+static int qcom_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
u32 peak_bw, u32 *agg_avg, u32 *agg_peak)
{
size_t i;
@@ -634,12 +651,19 @@ static int qcom_icc_aggregate(struct icc_node *node, u32 avg_bw,
qn = node->data;
+ if (!tag)
+ tag = QCOM_ICC_TAG_ALWAYS;
+
+ for (i = 0; i < QCOM_ICC_NUM_BUCKETS; i++) {
+ if (tag & BIT(i)) {
+ qn->sum_avg[i] += avg_bw;
+ qn->max_peak[i] = max_t(u32, qn->max_peak[i], peak_bw);
+ }
+ }
+
*agg_avg += avg_bw;
*agg_peak = max_t(u32, *agg_peak, peak_bw);
- qn->sum_avg = *agg_avg;
- qn->max_peak = *agg_peak;
-
for (i = 0; i < qn->num_bcms; i++)
qn->bcms[i]->dirty = true;
@@ -675,7 +699,7 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst)
* Construct the command list based on a pre ordered list of BCMs
* based on VCD.
*/
- tcs_list_gen(&commit_list, cmds, commit_idx);
+ tcs_list_gen(&commit_list, QCOM_ICC_BUCKET_AMC, cmds, commit_idx);
if (!commit_idx[0])
return ret;
@@ -693,6 +717,41 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst)
return ret;
}
+ INIT_LIST_HEAD(&commit_list);
+
+ for (i = 0; i < qp->num_bcms; i++) {
+ /*
+ * Only generate WAKE and SLEEP commands if a resource's
+ * requirements change as the execution environment transitions
+ * between different power states.
+ */
+ if (qp->bcms[i]->vote_x[QCOM_ICC_BUCKET_WAKE] !=
+ qp->bcms[i]->vote_x[QCOM_ICC_BUCKET_SLEEP] ||
+ qp->bcms[i]->vote_y[QCOM_ICC_BUCKET_WAKE] !=
+ qp->bcms[i]->vote_y[QCOM_ICC_BUCKET_SLEEP]) {
+ list_add_tail(&qp->bcms[i]->list, &commit_list);
+ }
+ }
+
+ if (list_empty(&commit_list))
+ return ret;
+
+ tcs_list_gen(&commit_list, QCOM_ICC_BUCKET_WAKE, cmds, commit_idx);
+
+ ret = rpmh_write_batch(qp->dev, RPMH_WAKE_ONLY_STATE, cmds, commit_idx);
+ if (ret) {
+ pr_err("Error sending WAKE RPMH requests (%d)\n", ret);
+ return ret;
+ }
+
+ tcs_list_gen(&commit_list, QCOM_ICC_BUCKET_SLEEP, cmds, commit_idx);
+
+ ret = rpmh_write_batch(qp->dev, RPMH_SLEEP_STATE, cmds, commit_idx);
+ if (ret) {
+ pr_err("Error sending SLEEP RPMH requests (%d)\n", ret);
+ return ret;
+ }
+
return ret;
}
@@ -738,6 +797,7 @@ static int qnoc_probe(struct platform_device *pdev)
provider = &qp->provider;
provider->dev = &pdev->dev;
provider->set = qcom_icc_set;
+ provider->pre_aggregate = qcom_icc_pre_aggregate;
provider->aggregate = qcom_icc_aggregate;
provider->xlate = of_icc_xlate_onecell;
INIT_LIST_HEAD(&provider->nodes);
diff --git a/drivers/interconnect/qcom/smd-rpm.c b/drivers/interconnect/qcom/smd-rpm.c
new file mode 100644
index 000000000000..dc8ff8d133a9
--- /dev/null
+++ b/drivers/interconnect/qcom/smd-rpm.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * RPM over SMD communication wrapper for interconnects
+ *
+ * Copyright (C) 2019 Linaro Ltd
+ * Author: Georgi Djakov <georgi.djakov@linaro.org>
+ */
+
+#include <linux/interconnect-provider.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/soc/qcom/smd-rpm.h>
+
+#include "smd-rpm.h"
+
+#define RPM_KEY_BW 0x00007762
+
+static struct qcom_smd_rpm *icc_smd_rpm;
+
+struct icc_rpm_smd_req {
+ __le32 key;
+ __le32 nbytes;
+ __le32 value;
+};
+
+bool qcom_icc_rpm_smd_available(void)
+{
+ return !!icc_smd_rpm;
+}
+EXPORT_SYMBOL_GPL(qcom_icc_rpm_smd_available);
+
+int qcom_icc_rpm_smd_send(int ctx, int rsc_type, int id, u32 val)
+{
+ struct icc_rpm_smd_req req = {
+ .key = cpu_to_le32(RPM_KEY_BW),
+ .nbytes = cpu_to_le32(sizeof(u32)),
+ .value = cpu_to_le32(val),
+ };
+
+ return qcom_rpm_smd_write(icc_smd_rpm, ctx, rsc_type, id, &req,
+ sizeof(req));
+}
+EXPORT_SYMBOL_GPL(qcom_icc_rpm_smd_send);
+
+static int qcom_icc_rpm_smd_remove(struct platform_device *pdev)
+{
+ icc_smd_rpm = NULL;
+
+ return 0;
+}
+
+static int qcom_icc_rpm_smd_probe(struct platform_device *pdev)
+{
+ icc_smd_rpm = dev_get_drvdata(pdev->dev.parent);
+
+ if (!icc_smd_rpm) {
+ dev_err(&pdev->dev, "unable to retrieve handle to RPM\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static struct platform_driver qcom_interconnect_rpm_smd_driver = {
+ .driver = {
+ .name = "icc_smd_rpm",
+ },
+ .probe = qcom_icc_rpm_smd_probe,
+ .remove = qcom_icc_rpm_smd_remove,
+};
+module_platform_driver(qcom_interconnect_rpm_smd_driver);
+MODULE_AUTHOR("Georgi Djakov <georgi.djakov@linaro.org>");
+MODULE_DESCRIPTION("Qualcomm SMD RPM interconnect proxy driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:icc_smd_rpm");
diff --git a/drivers/interconnect/qcom/smd-rpm.h b/drivers/interconnect/qcom/smd-rpm.h
new file mode 100644
index 000000000000..ca9d0327b8ac
--- /dev/null
+++ b/drivers/interconnect/qcom/smd-rpm.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2019, Linaro Ltd.
+ * Author: Georgi Djakov <georgi.djakov@linaro.org>
+ */
+
+#ifndef __DRIVERS_INTERCONNECT_QCOM_SMD_RPM_H
+#define __DRIVERS_INTERCONNECT_QCOM_SMD_RPM_H
+
+#include <linux/soc/qcom/smd-rpm.h>
+
+bool qcom_icc_rpm_smd_available(void);
+int qcom_icc_rpm_smd_send(int ctx, int rsc_type, int id, u32 val);
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-18 05:00:32 +0000