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This commit is contained in:
penn 2024-10-30 18:28:43 +08:00
parent c0859ba843
commit 0075e53985
1 changed files with 6 additions and 6 deletions
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12
drivers/misc/ethosn/ethosn_proc_mem_allocator.c
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@ -93,7 +93,7 @@ static void print_buffer_info(struct ethosn_device *ethosn, const char *prefix,
u32 i; u32 i;
const char *delim = ""; const char *delim = "";
n += scnprintf(&buf[n], sizeof(buf) - n, " %s: ", prefix); n += scnprintf(&buf[n], sizeof(buf) - n, "%s:", prefix);
for (i = 0; i < ninfos; ++i) { for (i = 0; i < ninfos; ++i) {
struct ethosn_buffer_info info; struct ethosn_buffer_info info;
@ -103,7 +103,7 @@ static void print_buffer_info(struct ethosn_device *ethosn, const char *prefix,
n += scnprintf(&buf[n], sizeof(buf) - n, "%s{%u, %u, %u}", delim, info.id, info.offset, info.size); n += scnprintf(&buf[n], sizeof(buf) - n, "%s{%u, %u, %u}", delim, info.id, info.offset, info.size);
delim = ", "; delim = ",";
} }
dev_dbg(ethosn->dev, "%s\n", buf); dev_dbg(ethosn->dev, "%s\n", buf);
@ -266,12 +266,12 @@ static const struct file_operations allocator_fops = {
* -EINVAL - Invalid argument. * -EINVAL - Invalid argument.
* -ENOMEM - Failed to allocate memory or a free asset_allocator. * -ENOMEM - Failed to allocate memory or a free asset_allocator.
*/ */
int ethosn_process_mem_allocator_create(struct ethosn_device *ethosn, pid_t pid, bool protected) // process_mem_allocator 用于在程序运行过程中动态地构造DMA内存空间 int ethosn_process_mem_allocator_create(struct ethosn_device *ethosn, pid_t pid, bool protected) // process_mem_allocator 用于在程序运行过程中动态地构造 DMA 内存空间
{ {
int ret = 0; int ret = 0;
int fd; int fd;
struct ethosn_allocator *proc_mem_allocator; struct ethosn_allocator *proc_mem_allocator;
struct ethosn_dma_allocator *asset_allocator = ethosn_asset_allocator_find(ethosn, pid); struct ethosn_dma_allocator *asset_allocator = ethosn_asset_allocator_find(ethosn, pid); // pid 的主要用来索引 asset_allocator, 一个 pid 对应一个 asset_allocator
if (pid <= 0) { if (pid <= 0) {
dev_err(ethosn->dev, "%s: Unsupported pid=%d, must be >0\n", __func__, pid); dev_err(ethosn->dev, "%s: Unsupported pid=%d, must be >0\n", __func__, pid);
@ -279,7 +279,7 @@ int ethosn_process_mem_allocator_create(struct ethosn_device *ethosn, pid_t pid,
return -EINVAL; return -EINVAL;
} }
dev_dbg(ethosn->dev, "Process %d requests a %sprotected asset allocator", pid, protected ? "" : "non-"); dev_dbg(ethosn->dev, "Process %d requests a %sprotected asset allocator", pid, protected ? "":"non-");
#if !defined(ETHOSN_TZMP1) #if !defined(ETHOSN_TZMP1)
if (protected) { if (protected) {
@ -333,7 +333,7 @@ int ethosn_process_mem_allocator_create(struct ethosn_device *ethosn, pid_t pid,
fput(proc_mem_allocator->file); fput(proc_mem_allocator->file);
dev_dbg(ethosn->dev, "Assigned %sprotected asset_allocator. proc memory allocator handle=0x%pK\n", protected ? "" : "non-", proc_mem_allocator); dev_dbg(ethosn->dev, "Assigned %sprotected asset_allocator. proc memory allocator handle=0x%pK\n", protected ? "":"non-", proc_mem_allocator);
return fd; return fd;