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interconnect: qcom: Add QCS404 interconnect provider driver 

Add driver for the interconnect buses found in Qualcomm QCS404-based
platforms. The topology consists of three NoCs that are controlled by
a remote processor. This remote processor collects the aggregated
bandwidth for each master-slave pairs.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
This commit is contained in:
Bjorn Andersson 2019-07-23 17:23:38 +03:00 committed by Georgi Djakov
parent be06f8e742
commit 5e4e6c4d3a
3 changed files with 550 additions and 0 deletions
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9
drivers/interconnect/qcom/Kconfig
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@ -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 || COMPILE_TEST
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

2
drivers/interconnect/qcom/Makefile
View File

@ -1,7 +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

539
drivers/interconnect/qcom/qcs404.c Normal file
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@ -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");