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Diffstat (limited to 'linux-core/drm_memory_debug.c')
-rw-r--r--linux-core/drm_memory_debug.c175
1 files changed, 89 insertions, 86 deletions
diff --git a/linux-core/drm_memory_debug.c b/linux-core/drm_memory_debug.c
index 2c3564af..39dfa75e 100644
--- a/linux-core/drm_memory_debug.c
+++ b/linux-core/drm_memory_debug.c
@@ -1,5 +1,5 @@
/**
- * \file drm_memory_debug.h
+ * \file drm_memory_debug.h
* Memory management wrappers for DRM.
*
* \author Rickard E. (Rik) Faith <faith@valinux.com>
@@ -35,75 +35,75 @@
#include "drmP.h"
typedef struct drm_mem_stats {
- const char *name;
- int succeed_count;
- int free_count;
- int fail_count;
- unsigned long bytes_allocated;
- unsigned long bytes_freed;
+ const char *name;
+ int succeed_count;
+ int free_count;
+ int fail_count;
+ unsigned long bytes_allocated;
+ unsigned long bytes_freed;
} drm_mem_stats_t;
-static spinlock_t drm_mem_lock = SPIN_LOCK_UNLOCKED;
-static unsigned long drm_ram_available = 0; /* In pages */
-static unsigned long drm_ram_used = 0;
-static drm_mem_stats_t drm_mem_stats[] = {
- [DRM_MEM_DMA] = { "dmabufs" },
- [DRM_MEM_SAREA] = { "sareas" },
- [DRM_MEM_DRIVER] = { "driver" },
- [DRM_MEM_MAGIC] = { "magic" },
- [DRM_MEM_IOCTLS] = { "ioctltab" },
- [DRM_MEM_MAPS] = { "maplist" },
- [DRM_MEM_VMAS] = { "vmalist" },
- [DRM_MEM_BUFS] = { "buflist" },
- [DRM_MEM_SEGS] = { "seglist" },
- [DRM_MEM_PAGES] = { "pagelist" },
- [DRM_MEM_FILES] = { "files" },
- [DRM_MEM_QUEUES] = { "queues" },
- [DRM_MEM_CMDS] = { "commands" },
- [DRM_MEM_MAPPINGS] = { "mappings" },
- [DRM_MEM_BUFLISTS] = { "buflists" },
- [DRM_MEM_AGPLISTS] = { "agplist" },
- [DRM_MEM_SGLISTS] = { "sglist" },
- [DRM_MEM_TOTALAGP] = { "totalagp" },
- [DRM_MEM_BOUNDAGP] = { "boundagp" },
- [DRM_MEM_CTXBITMAP] = { "ctxbitmap"},
- [DRM_MEM_CTXLIST] = { "ctxlist" },
- [DRM_MEM_STUB] = { "stub" },
- { NULL, 0, } /* Last entry must be null */
+static spinlock_t drm_mem_lock = SPIN_LOCK_UNLOCKED;
+static unsigned long drm_ram_available = 0; /* In pages */
+static unsigned long drm_ram_used = 0;
+static drm_mem_stats_t drm_mem_stats[] = {
+ [DRM_MEM_DMA] = {"dmabufs"},
+ [DRM_MEM_SAREA] = {"sareas"},
+ [DRM_MEM_DRIVER] = {"driver"},
+ [DRM_MEM_MAGIC] = {"magic"},
+ [DRM_MEM_IOCTLS] = {"ioctltab"},
+ [DRM_MEM_MAPS] = {"maplist"},
+ [DRM_MEM_VMAS] = {"vmalist"},
+ [DRM_MEM_BUFS] = {"buflist"},
+ [DRM_MEM_SEGS] = {"seglist"},
+ [DRM_MEM_PAGES] = {"pagelist"},
+ [DRM_MEM_FILES] = {"files"},
+ [DRM_MEM_QUEUES] = {"queues"},
+ [DRM_MEM_CMDS] = {"commands"},
+ [DRM_MEM_MAPPINGS] = {"mappings"},
+ [DRM_MEM_BUFLISTS] = {"buflists"},
+ [DRM_MEM_AGPLISTS] = {"agplist"},
+ [DRM_MEM_SGLISTS] = {"sglist"},
+ [DRM_MEM_TOTALAGP] = {"totalagp"},
+ [DRM_MEM_BOUNDAGP] = {"boundagp"},
+ [DRM_MEM_CTXBITMAP] = {"ctxbitmap"},
+ [DRM_MEM_CTXLIST] = {"ctxlist"},
+ [DRM_MEM_STUB] = {"stub"},
+ {NULL, 0,} /* Last entry must be null */
};
void drm_mem_init(void)
{
drm_mem_stats_t *mem;
- struct sysinfo si;
+ struct sysinfo si;
for (mem = drm_mem_stats; mem->name; ++mem) {
- mem->succeed_count = 0;
- mem->free_count = 0;
- mem->fail_count = 0;
+ mem->succeed_count = 0;
+ mem->free_count = 0;
+ mem->fail_count = 0;
mem->bytes_allocated = 0;
- mem->bytes_freed = 0;
+ mem->bytes_freed = 0;
}
si_meminfo(&si);
drm_ram_available = si.totalram;
- drm_ram_used = 0;
+ drm_ram_used = 0;
}
/* drm_mem_info is called whenever a process reads /dev/drm/mem. */
static int drm__mem_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data)
+ int request, int *eof, void *data)
{
drm_mem_stats_t *pt;
- int len = 0;
+ int len = 0;
if (offset > DRM_PROC_LIMIT) {
*eof = 1;
return 0;
}
- *eof = 0;
+ *eof = 0;
*start = &buf[offset];
DRM_PROC_PRINT(" total counts "
@@ -129,13 +129,14 @@ static int drm__mem_info(char *buf, char **start, off_t offset,
- (long)pt->bytes_freed);
}
- if (len > request + offset) return request;
+ if (len > request + offset)
+ return request;
*eof = 1;
return len - offset;
}
int drm_mem_info(char *buf, char **start, off_t offset,
- int len, int *eof, void *data)
+ int len, int *eof, void *data)
{
int ret;
@@ -182,7 +183,8 @@ void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area)
{
void *pt;
- if (!(pt = drm_alloc(size, area))) return NULL;
+ if (!(pt = drm_alloc(size, area)))
+ return NULL;
if (oldpt && oldsize) {
memcpy(pt, oldpt, oldsize);
drm_free(oldpt, oldsize, area);
@@ -195,12 +197,14 @@ void drm_free(void *pt, size_t size, int area)
int alloc_count;
int free_count;
- if (!pt) DRM_MEM_ERROR(area, "Attempt to free NULL pointer\n");
- else kfree(pt);
+ if (!pt)
+ DRM_MEM_ERROR(area, "Attempt to free NULL pointer\n");
+ else
+ kfree(pt);
spin_lock(&drm_mem_lock);
drm_mem_stats[area].bytes_freed += size;
- free_count = ++drm_mem_stats[area].free_count;
- alloc_count = drm_mem_stats[area].succeed_count;
+ free_count = ++drm_mem_stats[area].free_count;
+ alloc_count = drm_mem_stats[area].succeed_count;
spin_unlock(&drm_mem_lock);
if (free_count > alloc_count) {
DRM_MEM_ERROR(area, "Excess frees: %d frees, %d allocs\n",
@@ -211,9 +215,9 @@ void drm_free(void *pt, size_t size, int area)
unsigned long drm_alloc_pages(int order, int area)
{
unsigned long address;
- unsigned long bytes = PAGE_SIZE << order;
+ unsigned long bytes = PAGE_SIZE << order;
unsigned long addr;
- unsigned int sz;
+ unsigned int sz;
spin_lock(&drm_mem_lock);
if ((drm_ram_used >> PAGE_SHIFT)
@@ -233,17 +237,15 @@ unsigned long drm_alloc_pages(int order, int area)
spin_lock(&drm_mem_lock);
++drm_mem_stats[area].succeed_count;
drm_mem_stats[area].bytes_allocated += bytes;
- drm_ram_used += bytes;
+ drm_ram_used += bytes;
spin_unlock(&drm_mem_lock);
-
- /* Zero outside the lock */
+ /* Zero outside the lock */
memset((void *)address, 0, bytes);
- /* Reserve */
+ /* Reserve */
for (addr = address, sz = bytes;
- sz > 0;
- addr += PAGE_SIZE, sz -= PAGE_SIZE) {
+ sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
SetPageReserved(virt_to_page(addr));
}
@@ -253,28 +255,27 @@ unsigned long drm_alloc_pages(int order, int area)
void drm_free_pages(unsigned long address, int order, int area)
{
unsigned long bytes = PAGE_SIZE << order;
- int alloc_count;
- int free_count;
+ int alloc_count;
+ int free_count;
unsigned long addr;
- unsigned int sz;
+ unsigned int sz;
if (!address) {
DRM_MEM_ERROR(area, "Attempt to free address 0\n");
} else {
- /* Unreserve */
+ /* Unreserve */
for (addr = address, sz = bytes;
- sz > 0;
- addr += PAGE_SIZE, sz -= PAGE_SIZE) {
+ sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
ClearPageReserved(virt_to_page(addr));
}
free_pages(address, order);
}
spin_lock(&drm_mem_lock);
- free_count = ++drm_mem_stats[area].free_count;
- alloc_count = drm_mem_stats[area].succeed_count;
+ free_count = ++drm_mem_stats[area].free_count;
+ alloc_count = drm_mem_stats[area].succeed_count;
drm_mem_stats[area].bytes_freed += bytes;
- drm_ram_used -= bytes;
+ drm_ram_used -= bytes;
spin_unlock(&drm_mem_lock);
if (free_count > alloc_count) {
DRM_MEM_ERROR(area,
@@ -283,7 +284,7 @@ void drm_free_pages(unsigned long address, int order, int area)
}
}
-void *drm_ioremap(unsigned long offset, unsigned long size, drm_device_t *dev)
+void *drm_ioremap(unsigned long offset, unsigned long size, drm_device_t * dev)
{
void *pt;
@@ -306,7 +307,8 @@ void *drm_ioremap(unsigned long offset, unsigned long size, drm_device_t *dev)
return pt;
}
-void *drm_ioremap_nocache(unsigned long offset, unsigned long size, drm_device_t *dev)
+void *drm_ioremap_nocache(unsigned long offset, unsigned long size,
+ drm_device_t * dev)
{
void *pt;
@@ -329,7 +331,7 @@ void *drm_ioremap_nocache(unsigned long offset, unsigned long size, drm_device_t
return pt;
}
-void drm_ioremapfree(void *pt, unsigned long size, drm_device_t *dev)
+void drm_ioremapfree(void *pt, unsigned long size, drm_device_t * dev)
{
int alloc_count;
int free_count;
@@ -342,8 +344,8 @@ void drm_ioremapfree(void *pt, unsigned long size, drm_device_t *dev)
spin_lock(&drm_mem_lock);
drm_mem_stats[DRM_MEM_MAPPINGS].bytes_freed += size;
- free_count = ++drm_mem_stats[DRM_MEM_MAPPINGS].free_count;
- alloc_count = drm_mem_stats[DRM_MEM_MAPPINGS].succeed_count;
+ free_count = ++drm_mem_stats[DRM_MEM_MAPPINGS].free_count;
+ alloc_count = drm_mem_stats[DRM_MEM_MAPPINGS].succeed_count;
spin_unlock(&drm_mem_lock);
if (free_count > alloc_count) {
DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
@@ -367,7 +369,7 @@ DRM_AGP_MEM *drm_alloc_agp(int pages, u32 type)
spin_lock(&drm_mem_lock);
++drm_mem_stats[DRM_MEM_TOTALAGP].succeed_count;
drm_mem_stats[DRM_MEM_TOTALAGP].bytes_allocated
- += pages << PAGE_SHIFT;
+ += pages << PAGE_SHIFT;
spin_unlock(&drm_mem_lock);
return handle;
}
@@ -377,11 +379,11 @@ DRM_AGP_MEM *drm_alloc_agp(int pages, u32 type)
return NULL;
}
-int drm_free_agp(DRM_AGP_MEM *handle, int pages)
+int drm_free_agp(DRM_AGP_MEM * handle, int pages)
{
- int alloc_count;
- int free_count;
- int retval = -EINVAL;
+ int alloc_count;
+ int free_count;
+ int retval = -EINVAL;
if (!handle) {
DRM_MEM_ERROR(DRM_MEM_TOTALAGP,
@@ -391,10 +393,10 @@ int drm_free_agp(DRM_AGP_MEM *handle, int pages)
if (drm_agp_free_memory(handle)) {
spin_lock(&drm_mem_lock);
- free_count = ++drm_mem_stats[DRM_MEM_TOTALAGP].free_count;
- alloc_count = drm_mem_stats[DRM_MEM_TOTALAGP].succeed_count;
+ free_count = ++drm_mem_stats[DRM_MEM_TOTALAGP].free_count;
+ alloc_count = drm_mem_stats[DRM_MEM_TOTALAGP].succeed_count;
drm_mem_stats[DRM_MEM_TOTALAGP].bytes_freed
- += pages << PAGE_SHIFT;
+ += pages << PAGE_SHIFT;
spin_unlock(&drm_mem_lock);
if (free_count > alloc_count) {
DRM_MEM_ERROR(DRM_MEM_TOTALAGP,
@@ -406,7 +408,7 @@ int drm_free_agp(DRM_AGP_MEM *handle, int pages)
return retval;
}
-int drm_bind_agp(DRM_AGP_MEM *handle, unsigned int start)
+int drm_bind_agp(DRM_AGP_MEM * handle, unsigned int start)
{
int retcode = -EINVAL;
@@ -420,7 +422,7 @@ int drm_bind_agp(DRM_AGP_MEM *handle, unsigned int start)
spin_lock(&drm_mem_lock);
++drm_mem_stats[DRM_MEM_BOUNDAGP].succeed_count;
drm_mem_stats[DRM_MEM_BOUNDAGP].bytes_allocated
- += handle->page_count << PAGE_SHIFT;
+ += handle->page_count << PAGE_SHIFT;
spin_unlock(&drm_mem_lock);
return retcode;
}
@@ -430,7 +432,7 @@ int drm_bind_agp(DRM_AGP_MEM *handle, unsigned int start)
return retcode;
}
-int drm_unbind_agp(DRM_AGP_MEM *handle)
+int drm_unbind_agp(DRM_AGP_MEM * handle)
{
int alloc_count;
int free_count;
@@ -442,12 +444,13 @@ int drm_unbind_agp(DRM_AGP_MEM *handle)
return retcode;
}
- if ((retcode = drm_agp_unbind_memory(handle))) return retcode;
+ if ((retcode = drm_agp_unbind_memory(handle)))
+ return retcode;
spin_lock(&drm_mem_lock);
- free_count = ++drm_mem_stats[DRM_MEM_BOUNDAGP].free_count;
+ free_count = ++drm_mem_stats[DRM_MEM_BOUNDAGP].free_count;
alloc_count = drm_mem_stats[DRM_MEM_BOUNDAGP].succeed_count;
drm_mem_stats[DRM_MEM_BOUNDAGP].bytes_freed
- += handle->page_count << PAGE_SHIFT;
+ += handle->page_count << PAGE_SHIFT;
spin_unlock(&drm_mem_lock);
if (free_count > alloc_count) {
DRM_MEM_ERROR(DRM_MEM_BOUNDAGP,
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 13:54:56 +0000