From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/drivers/soc/rockchip/rockchip_amp.c | 387 ++++++++++++++++++++++++++++++++++++++++++++++++------
1 files changed, 339 insertions(+), 48 deletions(-)
diff --git a/kernel/drivers/soc/rockchip/rockchip_amp.c b/kernel/drivers/soc/rockchip/rockchip_amp.c
index 6c66362..db52d09 100644
--- a/kernel/drivers/soc/rockchip/rockchip_amp.c
+++ b/kernel/drivers/soc/rockchip/rockchip_amp.c
@@ -6,6 +6,7 @@
* Author: Tony Xie <tony.xie@rock-chips.com>
*/
+#include <asm/cputype.h>
#include <linux/clk.h>
#include <linux/module.h>
#include <linux/of.h>
@@ -13,10 +14,17 @@
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
#include <linux/rockchip/rockchip_sip.h>
+#include <soc/rockchip/rockchip_amp.h>
#define RK_CPU_STATUS_OFF 0
#define RK_CPU_STATUS_ON 1
#define RK_CPU_STATUS_BUSY -1
+#define AMP_AFF_MAX_CLUSTER 4
+#define AMP_AFF_MAX_CPU 8
+#define GPIO_BANK_NUM 16
+#define GPIO_GROUP_PRIO_MAX 3
+
+#define AMP_GIC_DBG(fmt, arg...) do { if (0) { pr_warn(fmt, ##arg); } } while (0)
enum amp_cpu_ctrl_status {
AMP_CPU_STATUS_AMP_DIS = 0,
@@ -43,6 +51,33 @@
u64 entry;
u64 cpu_id;
} cpu_boot_info[CONFIG_NR_CPUS];
+
+struct amp_gpio_group_s {
+ u32 bank_id;
+ u32 prio;
+ u32 irq_aff[AMP_AFF_MAX_CPU];
+ u32 irq_id[AMP_AFF_MAX_CPU];
+ u32 en[AMP_AFF_MAX_CPU];
+};
+
+struct amp_irq_cfg_s {
+ u32 prio;
+ u32 cpumask;
+ u32 aff;
+ int amp_flag;
+} irqs_cfg[1024];
+
+static struct amp_gic_ctrl_s {
+ struct {
+ u32 aff;
+ u32 cpumask;
+ u32 flag;
+ } aff_to_cpumask[AMP_AFF_MAX_CLUSTER][AMP_AFF_MAX_CPU];
+ struct amp_irq_cfg_s irqs_cfg[1024];
+ u32 validmask[1020 / 32 + 1];
+ struct amp_gpio_group_s gpio_grp[GPIO_BANK_NUM][GPIO_GROUP_PRIO_MAX];
+ u32 gpio_banks;
+} amp_ctrl;
static int get_cpu_boot_info_idx(unsigned long cpu_id)
{
@@ -77,29 +112,29 @@
static void cpu_status_print(unsigned long cpu_id, struct arm_smccc_res *res)
{
if (res->a0) {
- pr_info("get cpu-0x%lx status(%lx) error!\n", cpu_id, res->a0);
+ pr_info("failed to get cpu[%lx] status, ret=%lx!\n", cpu_id, res->a0);
return;
}
if (res->a1 == AMP_CPU_STATUS_AMP_DIS)
- pr_info("cpu-0x%lx amp is disable (%ld)\n", cpu_id, res->a1);
+ pr_info("cpu[%lx] amp is disabled (%ld)\n", cpu_id, res->a1);
else if (res->a1 == AMP_CPU_STATUS_EN)
- pr_info("cpu-0x%lx amp is enable (%ld)\n", cpu_id, res->a1);
+ pr_info("cpu[%lx] amp is enabled (%ld)\n", cpu_id, res->a1);
else if (res->a1 == AMP_CPU_STATUS_ON)
- pr_info("cpu-0x%lx amp: cpu is on (%ld)\n", cpu_id, res->a1);
+ pr_info("cpu[%lx] amp: cpu is on (%ld)\n", cpu_id, res->a1);
else if (res->a1 == AMP_CPU_STATUS_OFF)
- pr_info("cpu-0x%lx amp: cpu is off(%ld)\n", cpu_id, res->a1);
+ pr_info("cpu[%lx] amp: cpu is off(%ld)\n", cpu_id, res->a1);
else
- pr_info("cpu-0x%lx status(%ld) is error\n", cpu_id, res->a1);
+ pr_info("cpu[%lx] amp status(%ld) is error\n", cpu_id, res->a1);
if (res->a2 == RK_CPU_STATUS_OFF)
- pr_info("cpu-0x%lx status(%ld) is off\n", cpu_id, res->a2);
+ pr_info("cpu[%lx] status(%ld) is off\n", cpu_id, res->a2);
else if (res->a2 == RK_CPU_STATUS_ON)
- pr_info("cpu-0x%lx status(%ld) is on\n", cpu_id, res->a2);
+ pr_info("cpu[%lx] status(%ld) is on\n", cpu_id, res->a2);
else if (res->a2 == RK_CPU_STATUS_BUSY)
- pr_info("cpu-0x%lx status(%ld) is busy\n", cpu_id, res->a2);
+ pr_info("cpu[%lx] status(%ld) is busy\n", cpu_id, res->a2);
else
- pr_info("cpu-0x%lx status(%ld) is error\n", cpu_id, res->a2);
+ pr_info("cpu[%lx] status(%ld) is error\n", cpu_id, res->a2);
}
static ssize_t boot_cpu_store(struct device *dev,
@@ -107,9 +142,9 @@
const char *buf,
size_t count)
{
- char cmd[10];
- unsigned long cpu_id;
struct arm_smccc_res res = {0};
+ unsigned long cpu_id;
+ char cmd[10];
int ret, idx;
ret = sscanf(buf, "%s", cmd);
@@ -120,12 +155,10 @@
if (!strncmp(cmd, "status", strlen("status"))) {
ret = sscanf(buf, "%s %lx", cmd, &cpu_id);
-
if (ret != 2)
return -EINVAL;
- res = sip_smc_get_amp_info(RK_AMP_SUB_FUNC_GET_CPU_STATUS,
- cpu_id);
+ res = sip_smc_get_amp_info(RK_AMP_SUB_FUNC_GET_CPU_STATUS, cpu_id);
cpu_status_print(cpu_id, &res);
} else if (!strncmp(cmd, "off", strlen("off"))) {
ret = sscanf(buf, "%s %lx", cmd, &cpu_id);
@@ -133,17 +166,14 @@
return -EINVAL;
idx = get_cpu_boot_info_idx(cpu_id);
-
if (idx >= 0 && cpu_boot_info[idx].en) {
ret = sip_smc_amp_config(RK_AMP_SUB_FUNC_REQ_CPU_OFF,
cpu_id, 0, 0);
if (ret)
- pr_info("requesting a cpu off is error(%d)!\n",
- ret);
+ dev_warn(dev, "failed to request cpu[%lx] off, ret=%d!\n", cpu_id, ret);
}
} else if (!strncmp(cmd, "on", strlen("on"))) {
ret = sscanf(buf, "%s %lx", cmd, &cpu_id);
-
if (ret != 2)
return -EINVAL;
@@ -154,11 +184,14 @@
cpu_boot_info[idx].entry,
0);
if (ret)
- pr_info("booting up a cpu is error(%d)!\n",
- ret);
+ dev_warn(dev, "Brought up cpu[%lx] failed, ret=%d\n", cpu_id, ret);
+ else
+ pr_info("Brought up cpu[%lx] ok.\n", cpu_id);
+ } else {
+ dev_warn(dev, "cpu[%lx] is unavailable\n", cpu_id);
}
} else {
- pr_info("unsupported cmd(%s)\n", cmd);
+ dev_warn(dev, "unsupported cmd(%s)\n", cmd);
}
return count;
@@ -173,31 +206,34 @@
struct device_node *cpu_node, int idx)
{
u64 cpu_entry, cpu_id;
- u32 cpu_mode;
+ u32 cpu_mode, boot_on;
int ret;
if (idx >= CONFIG_NR_CPUS)
return -1;
+ if (of_property_read_u64_array(cpu_node, "id", &cpu_id, 1)) {
+ dev_warn(dev, "failed to get 'id'\n");
+ return -1;
+ }
+
if (of_property_read_u64_array(cpu_node, "entry", &cpu_entry, 1)) {
- dev_warn(dev, "can not get the entry\n");
+ dev_warn(dev, "failed to get cpu[%llx] 'entry'\n", cpu_id);
return -1;
}
if (!cpu_entry) {
- dev_warn(dev, "cpu-entry is 0\n");
- return -1;
- }
-
- if (of_property_read_u64_array(cpu_node, "id", &cpu_id, 1)) {
- dev_warn(dev, "can not get the cpu id\n");
+ dev_warn(dev, "invalid cpu[%llx] 'entry': 0\n", cpu_id);
return -1;
}
if (of_property_read_u32_array(cpu_node, "mode", &cpu_mode, 1)) {
- dev_warn(dev, "can not get the cpu mode\n");
+ dev_warn(dev, "failed to get cpu[%llx] 'mode'\n", cpu_id);
return -1;
}
+
+ if (of_property_read_u32_array(cpu_node, "boot-on", &boot_on, 1))
+ boot_on = 1; /* compatible old action */
cpu_boot_info[idx].entry = cpu_entry;
cpu_boot_info[idx].mode = cpu_mode;
@@ -205,14 +241,18 @@
ret = sip_smc_amp_config(RK_AMP_SUB_FUNC_CFG_MODE, cpu_id, cpu_mode, 0);
if (ret) {
- dev_warn(dev, "setting cpu mode is error(%d)!\n", ret);
+ dev_warn(dev, "failed to set cpu mode, ret=%d\n", ret);
return ret;
}
- ret = sip_smc_amp_config(RK_AMP_SUB_FUNC_CPU_ON, cpu_id, cpu_entry, 0);
- if (ret) {
- dev_warn(dev, "booting up a cpu is error(%d)!\n", ret);
- return ret;
+ if (boot_on) {
+ ret = sip_smc_amp_config(RK_AMP_SUB_FUNC_CPU_ON, cpu_id, cpu_entry, 0);
+ if (ret) {
+ dev_warn(dev, "Brought up cpu[%llx] failed, ret=%d\n", cpu_id, ret);
+ return ret;
+ } else {
+ pr_info("Brought up cpu[%llx] ok.\n", cpu_id);
+ }
}
cpu_boot_info[idx].en = 1;
@@ -220,11 +260,262 @@
return 0;
}
+int rockchip_amp_check_amp_irq(u32 irq)
+{
+ return amp_ctrl.irqs_cfg[irq].amp_flag;
+}
+
+u32 rockchip_amp_get_irq_prio(u32 irq)
+{
+ return amp_ctrl.irqs_cfg[irq].prio;
+}
+
+u32 rockchip_amp_get_irq_cpumask(u32 irq)
+{
+ return amp_ctrl.irqs_cfg[irq].cpumask;
+}
+
+static u32 amp_get_cpumask_bit(u32 aff)
+{
+ u32 aff_cluster, aff_cpu;
+
+ aff_cluster = MPIDR_AFFINITY_LEVEL(aff, 1);
+ aff_cpu = MPIDR_AFFINITY_LEVEL(aff, 0);
+
+ if (aff_cpu >= AMP_AFF_MAX_CPU || aff_cluster >= AMP_AFF_MAX_CLUSTER)
+ return 0;
+
+ AMP_GIC_DBG("%s: aff:%d-%d: %x\n", __func__, aff_cluster, aff_cpu,
+ amp_ctrl.aff_to_cpumask[aff_cluster][aff_cpu].cpumask);
+
+ return amp_ctrl.aff_to_cpumask[aff_cluster][aff_cpu].cpumask;
+}
+
+static int gic_amp_get_gpio_prio_group_info(struct device_node *np,
+ struct amp_gic_ctrl_s *amp_ctrl,
+ int prio_id)
+{
+ u32 gpio_bank, count0, count1, prio, irq_id, irq_aff;
+ int i;
+ struct amp_gpio_group_s *gpio_grp;
+ struct amp_irq_cfg_s *irqs_cfg;
+
+ if (prio_id >= GPIO_GROUP_PRIO_MAX)
+ return -EINVAL;
+
+ if (of_property_read_u32_array(np, "gpio-bank", &gpio_bank, 1))
+ return -EINVAL;
+ if (gpio_bank >= amp_ctrl->gpio_banks)
+ return -EINVAL;
+
+ gpio_grp = &_ctrl->gpio_grp[gpio_bank][prio_id];
+
+ if (of_property_read_u32_array(np, "prio", &prio, 1))
+ return -EINVAL;
+
+ if (gpio_bank >= GPIO_BANK_NUM)
+ return -EINVAL;
+
+ AMP_GIC_DBG("%s: gpio-%d, group prio:%d-%x\n",
+ __func__, gpio_bank, prio_id, prio);
+
+ count0 = of_property_count_u32_elems(np, "girq-id");
+ count1 = of_property_count_u32_elems(np, "girq-aff");
+
+ if (count0 != count1)
+ return -EINVAL;
+
+ gpio_grp->prio = prio;
+
+ for (i = 0; i < count0; i++) {
+ of_property_read_u32_index(np, "girq-id", i, &irq_id);
+ gpio_grp->irq_id[i] = irq_id;
+ of_property_read_u32_index(np, "girq-aff", i, &irq_aff);
+
+ gpio_grp->irq_aff[i] = irq_aff;
+
+ of_property_read_u32_index(np, "girq-en", i, &gpio_grp->en[i]);
+
+ irqs_cfg = &_ctrl->irqs_cfg[irq_id];
+
+ AMP_GIC_DBG(" %s: group cpu-%d, irq-%d: prio-%x, aff-%x en-%d\n",
+ __func__, i, gpio_grp->irq_id[i], gpio_grp->prio,
+ gpio_grp->irq_aff[i], gpio_grp->en[i]);
+
+ if (gpio_grp->en[i]) {
+ irqs_cfg->prio = gpio_grp->prio;
+ irqs_cfg->aff = irq_aff;
+ irqs_cfg->cpumask = amp_get_cpumask_bit(irq_aff);
+ irqs_cfg->amp_flag = 1;
+ }
+
+ AMP_GIC_DBG(" %s: irqs_cfg prio-%x aff-%x cpumaks-%x en-%d\n",
+ __func__, irqs_cfg->prio, irqs_cfg->aff,
+ irqs_cfg->cpumask, irqs_cfg->amp_flag);
+ }
+
+ return 0;
+}
+
+static int gic_amp_gpio_group_get_info(struct device_node *group_node,
+ struct amp_gic_ctrl_s *amp_ctrl,
+ int idx)
+{
+ int i = 0;
+ struct device_node *node;
+
+ if (group_node) {
+ for_each_available_child_of_node(group_node, node) {
+ if (i >= GPIO_GROUP_PRIO_MAX)
+ break;
+ if (!gic_amp_get_gpio_prio_group_info(node, amp_ctrl,
+ i)) {
+ i++;
+ }
+ }
+ }
+ return 0;
+}
+
+static void gic_of_get_gpio_group(struct device_node *np,
+ struct amp_gic_ctrl_s *amp_ctrl)
+{
+ struct device_node *gpio_group_node, *node;
+ int i = 0;
+
+ if (of_property_read_u32_array(np, "gpio-group-banks",
+ &_ctrl->gpio_banks, 1))
+ return;
+
+ gpio_group_node = of_get_child_by_name(np, "gpio-group");
+ if (gpio_group_node) {
+ for_each_available_child_of_node(gpio_group_node, node) {
+ if (i >= amp_ctrl->gpio_banks)
+ break;
+ if (!gic_amp_gpio_group_get_info(node, amp_ctrl, i))
+ i++;
+ }
+ }
+
+ of_node_put(gpio_group_node);
+}
+
+static int amp_gic_get_cpumask(struct device_node *np, struct amp_gic_ctrl_s *amp_ctrl)
+{
+ const struct property *prop;
+ int count, i;
+ u32 cluster, aff_cpu, aff, cpumask;
+
+ prop = of_find_property(np, "amp-cpu-aff-maskbits", NULL);
+ if (!prop)
+ return -1;
+
+ if (!prop->value)
+ return -1;
+
+ count = of_property_count_u32_elems(np, "amp-cpu-aff-maskbits");
+ if (count % 2)
+ return -1;
+
+ for (i = 0; i < count / 2; i++) {
+ of_property_read_u32_index(np, "amp-cpu-aff-maskbits",
+ 2 * i, &aff);
+ cluster = MPIDR_AFFINITY_LEVEL(aff, 1);
+ aff_cpu = MPIDR_AFFINITY_LEVEL(aff, 0);
+ amp_ctrl->aff_to_cpumask[cluster][aff_cpu].aff = aff;
+
+ of_property_read_u32_index(np, "amp-cpu-aff-maskbits",
+ 2 * i + 1, &cpumask);
+
+ amp_ctrl->aff_to_cpumask[cluster][aff_cpu].cpumask = cpumask;
+
+ AMP_GIC_DBG("cpumask: %d-%d: aff-%d cpumask-%d\n",
+ cluster, aff_cpu, aff, cpumask);
+
+ if (!cpumask)
+ return -1;
+ }
+
+ return 0;
+}
+
+static void amp_gic_get_irqs_config(struct device_node *np,
+ struct amp_gic_ctrl_s *amp_ctrl)
+{
+ const struct property *prop;
+ int count, i;
+ u32 irq, prio, aff;
+
+ prop = of_find_property(np, "amp-irqs", NULL);
+ if (!prop)
+ return;
+
+ if (!prop->value)
+ return;
+
+ count = of_property_count_u32_elems(np, "amp-irqs");
+
+ if (count < 0 || count % 3)
+ return;
+
+ for (i = 0; i < count / 3; i++) {
+ of_property_read_u32_index(np, "amp-irqs", 3 * i, &irq);
+
+ if (irq > 1020)
+ break;
+
+ of_property_read_u32_index(np, "amp-irqs", 3 * i + 1, &prio);
+ of_property_read_u32_index(np, "amp-irqs", 3 * i + 2, &aff);
+
+ AMP_GIC_DBG("%s: irq-%d aff-%d prio-%x\n",
+ __func__, irq, aff, prio);
+
+ amp_ctrl->irqs_cfg[irq].prio = prio;
+ amp_ctrl->irqs_cfg[irq].aff = aff;
+ amp_ctrl->irqs_cfg[irq].cpumask = amp_get_cpumask_bit(aff);
+
+ if (!amp_ctrl->irqs_cfg[irq].cpumask) {
+ AMP_GIC_DBG("%s: get cpumask error\n", __func__);
+ break;
+ }
+
+ if (!amp_ctrl->irqs_cfg[irq].aff &&
+ !amp_ctrl->irqs_cfg[irq].prio)
+ break;
+
+ amp_ctrl->irqs_cfg[irq].amp_flag = 1;
+
+ AMP_GIC_DBG("%s: irq-%d aff-%d cpumask-%d pri-%x\n",
+ __func__, irq, amp_ctrl->irqs_cfg[irq].aff,
+ amp_ctrl->irqs_cfg[irq].cpumask,
+ amp_ctrl->irqs_cfg[irq].prio);
+ }
+}
+
+void rockchip_amp_get_gic_info(void)
+{
+ struct device_node *np;
+
+ np = of_find_node_by_name(NULL, "rockchip-amp");
+ if (!np)
+ return;
+
+ if (amp_gic_get_cpumask(np, &_ctrl)) {
+ pr_err("%s: get amp gic cpu mask error\n", __func__);
+ goto exit;
+ }
+ gic_of_get_gpio_group(np, &_ctrl);
+ amp_gic_get_irqs_config(np, &_ctrl);
+
+exit:
+ of_node_put(np);
+}
+
static int rockchip_amp_probe(struct platform_device *pdev)
{
- struct rkamp_device *rkamp_dev = NULL;
- int ret, i, idx = 0;
struct device_node *cpus_node, *cpu_node;
+ struct rkamp_device *rkamp_dev;
+ int ret, i, idx = 0;
rkamp_dev = devm_kzalloc(&pdev->dev, sizeof(*rkamp_dev), GFP_KERNEL);
if (!rkamp_dev)
@@ -233,18 +524,20 @@
rkamp_dev->num_clks = devm_clk_bulk_get_all(&pdev->dev, &rkamp_dev->clks);
if (rkamp_dev->num_clks < 0)
return -ENODEV;
+
ret = clk_bulk_prepare_enable(rkamp_dev->num_clks, rkamp_dev->clks);
if (ret)
return dev_err_probe(&pdev->dev, ret, "failed to prepare enable clks: %d\n", ret);
pm_runtime_enable(&pdev->dev);
- rkamp_dev->num_pds = of_count_phandle_with_args(pdev->dev.of_node, "power-domains",
- "#power-domain-cells");
-
+ rkamp_dev->num_pds =
+ of_count_phandle_with_args(pdev->dev.of_node, "power-domains",
+ "#power-domain-cells");
if (rkamp_dev->num_pds > 0) {
- rkamp_dev->pd_dev = devm_kmalloc_array(&pdev->dev, rkamp_dev->num_pds,
- sizeof(*rkamp_dev->pd_dev), GFP_KERNEL);
+ rkamp_dev->pd_dev =
+ devm_kmalloc_array(&pdev->dev, rkamp_dev->num_pds,
+ sizeof(*rkamp_dev->pd_dev), GFP_KERNEL);
if (!rkamp_dev->pd_dev)
return -ENOMEM;
@@ -265,14 +558,12 @@
}
cpus_node = of_get_child_by_name(pdev->dev.of_node, "amp-cpus");
-
if (cpus_node) {
for_each_available_child_of_node(cpus_node, cpu_node) {
- if (!rockchip_amp_boot_cpus(&pdev->dev, cpu_node,
- idx)) {
+ if (!rockchip_amp_boot_cpus(&pdev->dev, cpu_node, idx))
idx++;
- }
}
+ of_node_put(cpus_node);
}
rk_amp_kobj = kobject_create_and_add("rk_amp", NULL);
@@ -290,8 +581,8 @@
static int rockchip_amp_remove(struct platform_device *pdev)
{
- int i;
struct rkamp_device *rkamp_dev = platform_get_drvdata(pdev);
+ int i;
clk_bulk_disable_unprepare(rkamp_dev->num_clks, rkamp_dev->clks);
--
Gitblit v1.6.2