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path: root/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm.c
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Diffstat (limited to 'drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm.c')
-rw-r--r--drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm.c139
1 files changed, 69 insertions, 70 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm.c b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm.c
index 05eeff58a229..b8aae4ba5a78 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm.c
@@ -46,14 +46,16 @@ static ia_css_ptr dummy_ptr;
static bool hmm_initialized;
struct _hmm_mem_stat hmm_mem_stat;
-/* p: private
- s: shared
- u: user
- i: ion */
+/*
+ * p: private
+ * s: shared
+ * u: user
+ * i: ion
+ */
static const char hmm_bo_type_string[] = "psui";
static ssize_t bo_show(struct device *dev, struct device_attribute *attr,
- char *buf, struct list_head *bo_list, bool active)
+ char *buf, struct list_head *bo_list, bool active)
{
ssize_t ret = 0;
struct hmm_buffer_object *bo;
@@ -73,10 +75,10 @@ static ssize_t bo_show(struct device *dev, struct device_attribute *attr,
spin_lock_irqsave(&bo_device.list_lock, flags);
list_for_each_entry(bo, bo_list, list) {
if ((active && (bo->status & HMM_BO_ALLOCED)) ||
- (!active && !(bo->status & HMM_BO_ALLOCED))) {
+ (!active && !(bo->status & HMM_BO_ALLOCED))) {
ret = scnprintf(buf + index1, PAGE_SIZE - index1,
- "%c %d\n",
- hmm_bo_type_string[bo->type], bo->pgnr);
+ "%c %d\n",
+ hmm_bo_type_string[bo->type], bo->pgnr);
total[bo->type] += bo->pgnr;
count[bo->type]++;
@@ -89,9 +91,10 @@ static ssize_t bo_show(struct device *dev, struct device_attribute *attr,
for (i = 0; i < HMM_BO_LAST; i++) {
if (count[i]) {
ret = scnprintf(buf + index1 + index2,
- PAGE_SIZE - index1 - index2,
- "%ld %c buffer objects: %ld KB\n",
- count[i], hmm_bo_type_string[i], total[i] * 4);
+ PAGE_SIZE - index1 - index2,
+ "%ld %c buffer objects: %ld KB\n",
+ count[i], hmm_bo_type_string[i],
+ total[i] * 4);
if (ret > 0)
index2 += ret;
}
@@ -101,23 +104,21 @@ static ssize_t bo_show(struct device *dev, struct device_attribute *attr,
return index1 + index2 + 1;
}
-static ssize_t active_bo_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t active_bo_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
return bo_show(dev, attr, buf, &bo_device.entire_bo_list, true);
}
-static ssize_t free_bo_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t free_bo_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
return bo_show(dev, attr, buf, &bo_device.entire_bo_list, false);
}
static ssize_t reserved_pool_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
ssize_t ret = 0;
@@ -129,7 +130,7 @@ static ssize_t reserved_pool_show(struct device *dev,
spin_lock_irqsave(&pinfo->list_lock, flags);
ret = scnprintf(buf, PAGE_SIZE, "%d out of %d pages available\n",
- pinfo->index, pinfo->pgnr);
+ pinfo->index, pinfo->pgnr);
spin_unlock_irqrestore(&pinfo->list_lock, flags);
if (ret > 0)
@@ -139,8 +140,8 @@ static ssize_t reserved_pool_show(struct device *dev,
};
static ssize_t dynamic_pool_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
ssize_t ret = 0;
@@ -152,7 +153,7 @@ static ssize_t dynamic_pool_show(struct device *dev,
spin_lock_irqsave(&pinfo->list_lock, flags);
ret = scnprintf(buf, PAGE_SIZE, "%d (max %d) pages available\n",
- pinfo->pgnr, pinfo->pool_size);
+ pinfo->pgnr, pinfo->pool_size);
spin_unlock_irqrestore(&pinfo->list_lock, flags);
if (ret > 0)
@@ -200,7 +201,7 @@ int hmm_init(void)
if (!ret) {
ret = sysfs_create_group(&atomisp_dev->kobj,
- atomisp_attribute_group);
+ atomisp_attribute_group);
if (ret)
dev_err(atomisp_dev,
"%s Failed to create sysfs\n", __func__);
@@ -213,9 +214,7 @@ void hmm_cleanup(void)
{
sysfs_remove_group(&atomisp_dev->kobj, atomisp_attribute_group);
- /*
- * free dummy memory first
- */
+ /* free dummy memory first */
hmm_free(dummy_ptr);
dummy_ptr = 0;
@@ -224,36 +223,37 @@ void hmm_cleanup(void)
}
ia_css_ptr hmm_alloc(size_t bytes, enum hmm_bo_type type,
- int from_highmem, void *userptr, bool cached)
+ int from_highmem, void *userptr, bool cached)
{
unsigned int pgnr;
struct hmm_buffer_object *bo;
int ret;
- /* Check if we are initialized. In the ideal world we wouldn't need
- this but we can tackle it once the driver is a lot cleaner */
+ /*
+ * Check if we are initialized. In the ideal world we wouldn't need
+ * this but we can tackle it once the driver is a lot cleaner
+ */
if (!hmm_initialized)
hmm_init();
- /*Get page number from size*/
+ /* Get page number from size */
pgnr = size_to_pgnr_ceil(bytes);
- /*Buffer object structure init*/
+ /* Buffer object structure init */
bo = hmm_bo_alloc(&bo_device, pgnr);
if (!bo) {
dev_err(atomisp_dev, "hmm_bo_create failed.\n");
goto create_bo_err;
}
- /*Allocate pages for memory*/
+ /* Allocate pages for memory */
ret = hmm_bo_alloc_pages(bo, type, from_highmem, userptr, cached);
if (ret) {
- dev_err(atomisp_dev,
- "hmm_bo_alloc_pages failed.\n");
+ dev_err(atomisp_dev, "hmm_bo_alloc_pages failed.\n");
goto alloc_page_err;
}
- /*Combind the virtual address and pages togather*/
+ /* Combind the virtual address and pages togather */
ret = hmm_bo_bind(bo);
if (ret) {
dev_err(atomisp_dev, "hmm_bo_bind failed.\n");
@@ -282,8 +282,8 @@ void hmm_free(ia_css_ptr virt)
if (!bo) {
dev_err(atomisp_dev,
- "can not find buffer object start with "
- "address 0x%x\n", (unsigned int)virt);
+ "can not find buffer object start with address 0x%x\n",
+ (unsigned int)virt);
return;
}
@@ -298,29 +298,29 @@ static inline int hmm_check_bo(struct hmm_buffer_object *bo, unsigned int ptr)
{
if (!bo) {
dev_err(atomisp_dev,
- "can not find buffer object contains "
- "address 0x%x\n", ptr);
+ "can not find buffer object contains address 0x%x\n",
+ ptr);
return -EINVAL;
}
if (!hmm_bo_page_allocated(bo)) {
dev_err(atomisp_dev,
- "buffer object has no page allocated.\n");
+ "buffer object has no page allocated.\n");
return -EINVAL;
}
if (!hmm_bo_allocated(bo)) {
dev_err(atomisp_dev,
- "buffer object has no virtual address"
- " space allocated.\n");
+ "buffer object has no virtual address space allocated.\n");
return -EINVAL;
}
return 0;
}
-/*Read function in ISP memory management*/
-static int load_and_flush_by_kmap(ia_css_ptr virt, void *data, unsigned int bytes)
+/* Read function in ISP memory management */
+static int load_and_flush_by_kmap(ia_css_ptr virt, void *data,
+ unsigned int bytes)
{
struct hmm_buffer_object *bo;
unsigned int idx, offset, len;
@@ -362,7 +362,7 @@ static int load_and_flush_by_kmap(ia_css_ptr virt, void *data, unsigned int byte
return 0;
}
-/*Read function in ISP memory management*/
+/* Read function in ISP memory management */
static int load_and_flush(ia_css_ptr virt, void *data, unsigned int bytes)
{
struct hmm_buffer_object *bo;
@@ -397,24 +397,24 @@ static int load_and_flush(ia_css_ptr virt, void *data, unsigned int bytes)
return 0;
}
-/*Read function in ISP memory management*/
+/* Read function in ISP memory management */
int hmm_load(ia_css_ptr virt, void *data, unsigned int bytes)
{
if (!data) {
dev_err(atomisp_dev,
- "hmm_load NULL argument\n");
+ "hmm_load NULL argument\n");
return -EINVAL;
}
return load_and_flush(virt, data, bytes);
}
-/*Flush hmm data from the data cache*/
+/* Flush hmm data from the data cache */
int hmm_flush(ia_css_ptr virt, unsigned int bytes)
{
return load_and_flush(virt, NULL, bytes);
}
-/*Write function in ISP memory management*/
+/* Write function in ISP memory management */
int hmm_store(ia_css_ptr virt, const void *data, unsigned int bytes)
{
struct hmm_buffer_object *bo;
@@ -460,8 +460,8 @@ int hmm_store(ia_css_ptr virt, const void *data, unsigned int bytes)
if (!des) {
dev_err(atomisp_dev,
- "kmap buffer object page failed: "
- "pg_idx = %d\n", idx);
+ "kmap buffer object page failed: pg_idx = %d\n",
+ idx);
return -EINVAL;
}
@@ -496,7 +496,7 @@ int hmm_store(ia_css_ptr virt, const void *data, unsigned int bytes)
return 0;
}
-/*memset function in ISP memory management*/
+/* memset function in ISP memory management */
int hmm_set(ia_css_ptr virt, int c, unsigned int bytes)
{
struct hmm_buffer_object *bo;
@@ -556,7 +556,7 @@ int hmm_set(ia_css_ptr virt, int c, unsigned int bytes)
return 0;
}
-/*Virtual address to physical address convert*/
+/* Virtual address to physical address convert */
phys_addr_t hmm_virt_to_phys(ia_css_ptr virt)
{
unsigned int idx, offset;
@@ -591,7 +591,7 @@ int hmm_mmap(struct vm_area_struct *vma, ia_css_ptr virt)
return hmm_bo_mmap(vma, bo);
}
-/*Map ISP virtual address into IA virtual address*/
+/* Map ISP virtual address into IA virtual address */
void *hmm_vmap(ia_css_ptr virt, bool cached)
{
struct hmm_buffer_object *bo;
@@ -600,8 +600,8 @@ void *hmm_vmap(ia_css_ptr virt, bool cached)
bo = hmm_bo_device_search_in_range(&bo_device, virt);
if (!bo) {
dev_err(atomisp_dev,
- "can not find buffer object contains address 0x%x\n",
- virt);
+ "can not find buffer object contains address 0x%x\n",
+ virt);
return NULL;
}
@@ -620,8 +620,8 @@ void hmm_flush_vmap(ia_css_ptr virt)
bo = hmm_bo_device_search_in_range(&bo_device, virt);
if (!bo) {
dev_warn(atomisp_dev,
- "can not find buffer object contains address 0x%x\n",
- virt);
+ "can not find buffer object contains address 0x%x\n",
+ virt);
return;
}
@@ -635,26 +635,25 @@ void hmm_vunmap(ia_css_ptr virt)
bo = hmm_bo_device_search_in_range(&bo_device, virt);
if (!bo) {
dev_warn(atomisp_dev,
- "can not find buffer object contains address 0x%x\n",
- virt);
+ "can not find buffer object contains address 0x%x\n",
+ virt);
return;
}
- return hmm_bo_vunmap(bo);
+ hmm_bo_vunmap(bo);
}
-int hmm_pool_register(unsigned int pool_size,
- enum hmm_pool_type pool_type)
+int hmm_pool_register(unsigned int pool_size, enum hmm_pool_type pool_type)
{
switch (pool_type) {
case HMM_POOL_TYPE_RESERVED:
reserved_pool.pops = &reserved_pops;
return reserved_pool.pops->pool_init(&reserved_pool.pool_info,
- pool_size);
+ pool_size);
case HMM_POOL_TYPE_DYNAMIC:
dynamic_pool.pops = &dynamic_pops;
return dynamic_pool.pops->pool_init(&dynamic_pool.pool_info,
- pool_size);
+ pool_size);
default:
dev_err(atomisp_dev, "invalid pool type.\n");
return -EINVAL;
@@ -703,10 +702,10 @@ ia_css_ptr hmm_host_vaddr_to_hrt_vaddr(const void *ptr)
void hmm_show_mem_stat(const char *func, const int line)
{
trace_printk("tol_cnt=%d usr_size=%d res_size=%d res_cnt=%d sys_size=%d dyc_thr=%d dyc_size=%d.\n",
- hmm_mem_stat.tol_cnt,
- hmm_mem_stat.usr_size, hmm_mem_stat.res_size,
- hmm_mem_stat.res_cnt, hmm_mem_stat.sys_size,
- hmm_mem_stat.dyc_thr, hmm_mem_stat.dyc_size);
+ hmm_mem_stat.tol_cnt,
+ hmm_mem_stat.usr_size, hmm_mem_stat.res_size,
+ hmm_mem_stat.res_cnt, hmm_mem_stat.sys_size,
+ hmm_mem_stat.dyc_thr, hmm_mem_stat.dyc_size);
}
void hmm_init_mem_stat(int res_pgnr, int dyc_en, int dyc_pgnr)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.