From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 19 Dec 2024 01:47:39 +0000
Subject: [PATCH] add wifi6 8852be driver
---
kernel/drivers/video/rockchip/iep/iep_drv.c | 75 +++++++------------------------------
1 files changed, 14 insertions(+), 61 deletions(-)
diff --git a/kernel/drivers/video/rockchip/iep/iep_drv.c b/kernel/drivers/video/rockchip/iep/iep_drv.c
index 9325b68..f0cfc71 100644
--- a/kernel/drivers/video/rockchip/iep/iep_drv.c
+++ b/kernel/drivers/video/rockchip/iep/iep_drv.c
@@ -31,6 +31,7 @@
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/rockchip/cpu.h>
+#include <linux/iommu.h>
#include <asm/cacheflush.h>
#include "iep_drv.h"
#include "hw_iep_reg.h"
@@ -870,54 +871,16 @@
.fops = &iep_fops,
};
-static struct device* rockchip_get_sysmmu_device_by_compatible(
- const char *compt)
-{
- struct device_node *dn = NULL;
- struct platform_device *pd = NULL;
- struct device *ret = NULL;
-
- dn = of_find_compatible_node(NULL, NULL, compt);
- if (!dn) {
- printk("can't find device node %s \r\n", compt);
- return NULL;
- }
-
- pd = of_find_device_by_node(dn);
- if (!pd) {
- printk("can't find platform device in device node %s \r\n",
- compt);
- return NULL;
- }
- ret = &pd->dev;
-
- return ret;
-
-}
-#ifdef CONFIG_IOMMU_API
-static inline void platform_set_sysmmu(struct device *iommu,
- struct device *dev)
-{
- dev->archdata.iommu = iommu;
-}
-#else
-static inline void platform_set_sysmmu(struct device *iommu,
- struct device *dev)
-{
-}
-#endif
-
-static int iep_sysmmu_fault_handler(struct device *dev,
- enum rk_iommu_inttype itype,
- unsigned long pgtable_base,
- unsigned long fault_addr, unsigned int status)
+static int iep_sysmmu_fault_handler(struct iommu_domain *domain,
+ struct device *iommu_dev,
+ unsigned long iova, int status, void *arg)
{
struct iep_reg *reg = list_entry(iep_service.running.next,
struct iep_reg, status_link);
if (reg != NULL) {
struct iep_mem_region *mem, *n;
int i = 0;
- pr_info("iep, fault addr 0x%08x\n", (u32)fault_addr);
+ pr_info("iep, fault addr 0x%08x\n", (u32)iova);
list_for_each_entry_safe(mem, n,
®->mem_region_list,
reg_lnk) {
@@ -944,7 +907,8 @@
struct platform_device *sub_dev = NULL;
struct device_node *sub_np = NULL;
u32 iommu_en = 0;
- struct device *mmu_dev = NULL;
+ struct iommu_domain *domain;
+
of_property_read_u32(np, "iommu_enabled", &iommu_en);
data = devm_kzalloc(&pdev->dev, sizeof(*data),
@@ -1081,21 +1045,10 @@
if (sub_np) {
sub_dev = of_find_device_by_node(sub_np);
iep_service.iommu_dev = &sub_dev->dev;
+ domain = iommu_get_domain_for_dev(&pdev->dev);
+ iommu_set_fault_handler(domain, iep_sysmmu_fault_handler, data);
}
- if (!iep_service.iommu_dev) {
- mmu_dev = rockchip_get_sysmmu_device_by_compatible(
- IEP_IOMMU_COMPATIBLE_NAME);
-
- if (mmu_dev) {
- platform_set_sysmmu(mmu_dev, &pdev->dev);
- }
-
- rockchip_iovmm_set_fault_handler(&pdev->dev,
- iep_sysmmu_fault_handler);
-
- iep_service.iommu_dev = mmu_dev;
- }
of_property_read_u32(np, "allocator", (u32 *)&iep_service.alloc_type);
iep_power_on();
iep_service.iommu_info = iep_iommu_info_create(data->dev,
@@ -1194,11 +1147,11 @@
return single_open(file, proc_iep_show, NULL);
}
-static const struct file_operations proc_iep_fops = {
- .open = proc_iep_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
+static const struct proc_ops proc_iep_fops = {
+ .proc_open = proc_iep_open,
+ .proc_read = seq_read,
+ .proc_lseek = seq_lseek,
+ .proc_release = single_release,
};
static int __init iep_proc_init(void)
--
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