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Diffstat (limited to 'drivers/char/drm/drm_proc.c')
-rw-r--r--drivers/char/drm/drm_proc.c272
1 files changed, 140 insertions, 132 deletions
diff --git a/drivers/char/drm/drm_proc.c b/drivers/char/drm/drm_proc.c
index 9779610024881..3f452f763f0fa 100644
--- a/drivers/char/drm/drm_proc.c
+++ b/drivers/char/drm/drm_proc.c
@@ -1,5 +1,5 @@
/**
- * \file drm_proc.h
+ * \file drm_proc.c
* /proc support for DRM
*
* \author Rickard E. (Rik) Faith <faith@valinux.com>
@@ -39,19 +39,19 @@
#include "drmP.h"
-static int drm_name_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data);
-static int drm_vm_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data);
-static int drm_clients_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data);
-static int drm_queues_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data);
-static int drm_bufs_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data);
+static int drm_name_info(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+static int drm_vm_info(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+static int drm_clients_info(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+static int drm_queues_info(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+static int drm_bufs_info(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
#if DRM_DEBUG_CODE
-static int drm_vma_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data);
+static int drm_vma_info(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
#endif
/**
@@ -59,18 +59,21 @@ static int drm_vma_info(char *buf, char **start, off_t offset,
*/
static struct drm_proc_list {
const char *name; /**< file name */
- int (*f)(char *, char **, off_t, int, int *, void *); /**< proc callback*/
+ int (*f) (char *, char **, off_t, int, int *, void *); /**< proc callback*/
} drm_proc_list[] = {
- { "name", drm_name_info },
- { "mem", drm_mem_info },
- { "vm", drm_vm_info },
- { "clients", drm_clients_info },
- { "queues", drm_queues_info },
- { "bufs", drm_bufs_info },
+ {
+ "name", drm_name_info}, {
+ "mem", drm_mem_info}, {
+ "vm", drm_vm_info}, {
+ "clients", drm_clients_info}, {
+ "queues", drm_queues_info}, {
+ "bufs", drm_bufs_info},
#if DRM_DEBUG_CODE
- { "vma", drm_vma_info },
+ {
+ "vma", drm_vma_info},
#endif
};
+
#define DRM_PROC_ENTRIES (sizeof(drm_proc_list)/sizeof(drm_proc_list[0]))
/**
@@ -81,18 +84,17 @@ static struct drm_proc_list {
* \param root DRI proc dir entry.
* \param dev_root resulting DRI device proc dir entry.
* \return root entry pointer on success, or NULL on failure.
- *
+ *
* Create the DRI proc root entry "/proc/dri", the device proc root entry
* "/proc/dri/%minor%/", and each entry in proc_list as
* "/proc/dri/%minor%/%name%".
*/
-int drm_proc_init(drm_device_t *dev, int minor,
- struct proc_dir_entry *root,
- struct proc_dir_entry **dev_root)
+int drm_proc_init(drm_device_t * dev, int minor,
+ struct proc_dir_entry *root, struct proc_dir_entry **dev_root)
{
struct proc_dir_entry *ent;
- int i, j;
- char name[64];
+ int i, j;
+ char name[64];
sprintf(name, "%d", minor);
*dev_root = proc_mkdir(name, root);
@@ -103,7 +105,7 @@ int drm_proc_init(drm_device_t *dev, int minor,
for (i = 0; i < DRM_PROC_ENTRIES; i++) {
ent = create_proc_entry(drm_proc_list[i].name,
- S_IFREG|S_IRUGO, *dev_root);
+ S_IFREG | S_IRUGO, *dev_root);
if (!ent) {
DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
name, drm_proc_list[i].name);
@@ -114,13 +116,12 @@ int drm_proc_init(drm_device_t *dev, int minor,
return -1;
}
ent->read_proc = drm_proc_list[i].f;
- ent->data = dev;
+ ent->data = dev;
}
return 0;
}
-
/**
* Cleanup the proc filesystem resources.
*
@@ -132,12 +133,13 @@ int drm_proc_init(drm_device_t *dev, int minor,
* Remove all proc entries created by proc_init().
*/
int drm_proc_cleanup(int minor, struct proc_dir_entry *root,
- struct proc_dir_entry *dev_root)
+ struct proc_dir_entry *dev_root)
{
- int i;
+ int i;
char name[64];
- if (!root || !dev_root) return 0;
+ if (!root || !dev_root)
+ return 0;
for (i = 0; i < DRM_PROC_ENTRIES; i++)
remove_proc_entry(drm_proc_list[i].name, dev_root);
@@ -149,7 +151,7 @@ int drm_proc_cleanup(int minor, struct proc_dir_entry *root,
/**
* Called when "/proc/dri/.../name" is read.
- *
+ *
* \param buf output buffer.
* \param start start of output data.
* \param offset requested start offset.
@@ -157,14 +159,14 @@ int drm_proc_cleanup(int minor, struct proc_dir_entry *root,
* \param eof whether there is no more data to return.
* \param data private data.
* \return number of written bytes.
- *
+ *
* Prints the device name together with the bus id if available.
*/
static int drm_name_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+ int *eof, void *data)
{
- drm_device_t *dev = (drm_device_t *)data;
- int len = 0;
+ drm_device_t *dev = (drm_device_t *) data;
+ int len = 0;
if (offset > DRM_PROC_LIMIT) {
*eof = 1;
@@ -172,23 +174,26 @@ static int drm_name_info(char *buf, char **start, off_t offset, int request,
}
*start = &buf[offset];
- *eof = 0;
+ *eof = 0;
if (dev->unique) {
DRM_PROC_PRINT("%s %s %s\n",
- dev->driver->pci_driver.name, pci_name(dev->pdev), dev->unique);
+ dev->driver->pci_driver.name,
+ pci_name(dev->pdev), dev->unique);
} else {
- DRM_PROC_PRINT("%s %s\n", dev->driver->pci_driver.name, pci_name(dev->pdev));
+ DRM_PROC_PRINT("%s %s\n", dev->driver->pci_driver.name,
+ pci_name(dev->pdev));
}
- if (len > request + offset) return request;
+ if (len > request + offset)
+ return request;
*eof = 1;
return len - offset;
}
/**
* Called when "/proc/dri/.../vm" is read.
- *
+ *
* \param buf output buffer.
* \param start start of output data.
* \param offset requested start offset.
@@ -196,24 +201,24 @@ static int drm_name_info(char *buf, char **start, off_t offset, int request,
* \param eof whether there is no more data to return.
* \param data private data.
* \return number of written bytes.
- *
+ *
* Prints information about all mappings in drm_device::maplist.
*/
static int drm__vm_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+ int *eof, void *data)
{
- drm_device_t *dev = (drm_device_t *)data;
- int len = 0;
- drm_map_t *map;
+ drm_device_t *dev = (drm_device_t *) data;
+ int len = 0;
+ drm_map_t *map;
drm_map_list_t *r_list;
struct list_head *list;
- /* Hardcoded from _DRM_FRAME_BUFFER,
- _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
- _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
- const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
- const char *type;
- int i;
+ /* Hardcoded from _DRM_FRAME_BUFFER,
+ _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
+ _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
+ const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
+ const char *type;
+ int i;
if (offset > DRM_PROC_LIMIT) {
*eof = 1;
@@ -221,36 +226,35 @@ static int drm__vm_info(char *buf, char **start, off_t offset, int request,
}
*start = &buf[offset];
- *eof = 0;
+ *eof = 0;
DRM_PROC_PRINT("slot offset size type flags "
"address mtrr\n\n");
i = 0;
- if (dev->maplist != NULL) list_for_each(list, &dev->maplist->head) {
+ if (dev->maplist != NULL)
+ list_for_each(list, &dev->maplist->head) {
r_list = list_entry(list, drm_map_list_t, head);
map = r_list->map;
- if(!map)
+ if (!map)
continue;
if (map->type < 0 || map->type > 5)
type = "??";
- else
+ else
type = types[map->type];
DRM_PROC_PRINT("%4d 0x%08lx 0x%08lx %4.4s 0x%02x 0x%08x ",
i,
map->offset,
- map->size,
- type,
- map->flags,
- r_list->user_token);
+ map->size, type, map->flags, r_list->user_token);
if (map->mtrr < 0) {
DRM_PROC_PRINT("none\n");
} else {
DRM_PROC_PRINT("%4d\n", map->mtrr);
}
i++;
- }
+ }
- if (len > request + offset) return request;
+ if (len > request + offset)
+ return request;
*eof = 1;
return len - offset;
}
@@ -259,10 +263,10 @@ static int drm__vm_info(char *buf, char **start, off_t offset, int request,
* Simply calls _vm_info() while holding the drm_device::struct_sem lock.
*/
static int drm_vm_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+ int *eof, void *data)
{
- drm_device_t *dev = (drm_device_t *)data;
- int ret;
+ drm_device_t *dev = (drm_device_t *) data;
+ int ret;
down(&dev->struct_sem);
ret = drm__vm_info(buf, start, offset, request, eof, data);
@@ -272,7 +276,7 @@ static int drm_vm_info(char *buf, char **start, off_t offset, int request,
/**
* Called when "/proc/dri/.../queues" is read.
- *
+ *
* \param buf output buffer.
* \param start start of output data.
* \param offset requested start offset.
@@ -282,12 +286,12 @@ static int drm_vm_info(char *buf, char **start, off_t offset, int request,
* \return number of written bytes.
*/
static int drm__queues_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data)
+ int request, int *eof, void *data)
{
- drm_device_t *dev = (drm_device_t *)data;
- int len = 0;
- int i;
- drm_queue_t *q;
+ drm_device_t *dev = (drm_device_t *) data;
+ int len = 0;
+ int i;
+ drm_queue_t *q;
if (offset > DRM_PROC_LIMIT) {
*eof = 1;
@@ -295,7 +299,7 @@ static int drm__queues_info(char *buf, char **start, off_t offset,
}
*start = &buf[offset];
- *eof = 0;
+ *eof = 0;
DRM_PROC_PRINT(" ctx/flags use fin"
" blk/rw/rwf wait flushed queued"
@@ -313,14 +317,17 @@ static int drm__queues_info(char *buf, char **start, off_t offset,
atomic_read(&q->block_count),
atomic_read(&q->block_read) ? 'r' : '-',
atomic_read(&q->block_write) ? 'w' : '-',
- waitqueue_active(&q->read_queue) ? 'r':'-',
- waitqueue_active(&q->write_queue) ? 'w':'-',
- waitqueue_active(&q->flush_queue) ? 'f':'-',
+ waitqueue_active(&q->read_queue) ? 'r' : '-',
+ waitqueue_active(&q->
+ write_queue) ? 'w' : '-',
+ waitqueue_active(&q->
+ flush_queue) ? 'f' : '-',
DRM_BUFCOUNT(&q->waitlist));
atomic_dec(&q->use_count);
}
- if (len > request + offset) return request;
+ if (len > request + offset)
+ return request;
*eof = 1;
return len - offset;
}
@@ -329,10 +336,10 @@ static int drm__queues_info(char *buf, char **start, off_t offset,
* Simply calls _queues_info() while holding the drm_device::struct_sem lock.
*/
static int drm_queues_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+ int *eof, void *data)
{
- drm_device_t *dev = (drm_device_t *)data;
- int ret;
+ drm_device_t *dev = (drm_device_t *) data;
+ int ret;
down(&dev->struct_sem);
ret = drm__queues_info(buf, start, offset, request, eof, data);
@@ -342,7 +349,7 @@ static int drm_queues_info(char *buf, char **start, off_t offset, int request,
/**
* Called when "/proc/dri/.../bufs" is read.
- *
+ *
* \param buf output buffer.
* \param start start of output data.
* \param offset requested start offset.
@@ -352,12 +359,12 @@ static int drm_queues_info(char *buf, char **start, off_t offset, int request,
* \return number of written bytes.
*/
static int drm__bufs_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+ int *eof, void *data)
{
- drm_device_t *dev = (drm_device_t *)data;
- int len = 0;
+ drm_device_t *dev = (drm_device_t *) data;
+ int len = 0;
drm_device_dma_t *dma = dev->dma;
- int i;
+ int i;
if (!dma || offset > DRM_PROC_LIMIT) {
*eof = 1;
@@ -365,7 +372,7 @@ static int drm__bufs_info(char *buf, char **start, off_t offset, int request,
}
*start = &buf[offset];
- *eof = 0;
+ *eof = 0;
DRM_PROC_PRINT(" o size count free segs pages kB\n\n");
for (i = 0; i <= DRM_MAX_ORDER; i++) {
@@ -378,19 +385,21 @@ static int drm__bufs_info(char *buf, char **start, off_t offset, int request,
.freelist.count),
dma->bufs[i].seg_count,
dma->bufs[i].seg_count
- *(1 << dma->bufs[i].page_order),
+ * (1 << dma->bufs[i].page_order),
(dma->bufs[i].seg_count
* (1 << dma->bufs[i].page_order))
* PAGE_SIZE / 1024);
}
DRM_PROC_PRINT("\n");
for (i = 0; i < dma->buf_count; i++) {
- if (i && !(i%32)) DRM_PROC_PRINT("\n");
+ if (i && !(i % 32))
+ DRM_PROC_PRINT("\n");
DRM_PROC_PRINT(" %d", dma->buflist[i]->list);
}
DRM_PROC_PRINT("\n");
- if (len > request + offset) return request;
+ if (len > request + offset)
+ return request;
*eof = 1;
return len - offset;
}
@@ -399,10 +408,10 @@ static int drm__bufs_info(char *buf, char **start, off_t offset, int request,
* Simply calls _bufs_info() while holding the drm_device::struct_sem lock.
*/
static int drm_bufs_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+ int *eof, void *data)
{
- drm_device_t *dev = (drm_device_t *)data;
- int ret;
+ drm_device_t *dev = (drm_device_t *) data;
+ int ret;
down(&dev->struct_sem);
ret = drm__bufs_info(buf, start, offset, request, eof, data);
@@ -412,7 +421,7 @@ static int drm_bufs_info(char *buf, char **start, off_t offset, int request,
/**
* Called when "/proc/dri/.../clients" is read.
- *
+ *
* \param buf output buffer.
* \param start start of output data.
* \param offset requested start offset.
@@ -422,11 +431,11 @@ static int drm_bufs_info(char *buf, char **start, off_t offset, int request,
* \return number of written bytes.
*/
static int drm__clients_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data)
+ int request, int *eof, void *data)
{
- drm_device_t *dev = (drm_device_t *)data;
- int len = 0;
- drm_file_t *priv;
+ drm_device_t *dev = (drm_device_t *) data;
+ int len = 0;
+ drm_file_t *priv;
if (offset > DRM_PROC_LIMIT) {
*eof = 1;
@@ -434,7 +443,7 @@ static int drm__clients_info(char *buf, char **start, off_t offset,
}
*start = &buf[offset];
- *eof = 0;
+ *eof = 0;
DRM_PROC_PRINT("a dev pid uid magic ioctls\n\n");
for (priv = dev->file_first; priv; priv = priv->next) {
@@ -442,12 +451,11 @@ static int drm__clients_info(char *buf, char **start, off_t offset,
priv->authenticated ? 'y' : 'n',
priv->minor,
priv->pid,
- priv->uid,
- priv->magic,
- priv->ioctl_count);
+ priv->uid, priv->magic, priv->ioctl_count);
}
- if (len > request + offset) return request;
+ if (len > request + offset)
+ return request;
*eof = 1;
return len - offset;
}
@@ -456,10 +464,10 @@ static int drm__clients_info(char *buf, char **start, off_t offset,
* Simply calls _clients_info() while holding the drm_device::struct_sem lock.
*/
static int drm_clients_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data)
+ int request, int *eof, void *data)
{
- drm_device_t *dev = (drm_device_t *)data;
- int ret;
+ drm_device_t *dev = (drm_device_t *) data;
+ int ret;
down(&dev->struct_sem);
ret = drm__clients_info(buf, start, offset, request, eof, data);
@@ -470,14 +478,14 @@ static int drm_clients_info(char *buf, char **start, off_t offset,
#if DRM_DEBUG_CODE
static int drm__vma_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+ int *eof, void *data)
{
- drm_device_t *dev = (drm_device_t *)data;
- int len = 0;
- drm_vma_entry_t *pt;
+ drm_device_t *dev = (drm_device_t *) data;
+ int len = 0;
+ drm_vma_entry_t *pt;
struct vm_area_struct *vma;
#if defined(__i386__)
- unsigned int pgprot;
+ unsigned int pgprot;
#endif
if (offset > DRM_PROC_LIMIT) {
@@ -486,51 +494,53 @@ static int drm__vma_info(char *buf, char **start, off_t offset, int request,
}
*start = &buf[offset];
- *eof = 0;
+ *eof = 0;
DRM_PROC_PRINT("vma use count: %d, high_memory = %p, 0x%08lx\n",
atomic_read(&dev->vma_count),
high_memory, virt_to_phys(high_memory));
for (pt = dev->vmalist; pt; pt = pt->next) {
- if (!(vma = pt->vma)) continue;
+ if (!(vma = pt->vma))
+ continue;
DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx",
pt->pid,
vma->vm_start,
vma->vm_end,
- vma->vm_flags & VM_READ ? 'r' : '-',
- vma->vm_flags & VM_WRITE ? 'w' : '-',
- vma->vm_flags & VM_EXEC ? 'x' : '-',
+ vma->vm_flags & VM_READ ? 'r' : '-',
+ vma->vm_flags & VM_WRITE ? 'w' : '-',
+ vma->vm_flags & VM_EXEC ? 'x' : '-',
vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
- vma->vm_flags & VM_LOCKED ? 'l' : '-',
- vma->vm_flags & VM_IO ? 'i' : '-',
+ vma->vm_flags & VM_LOCKED ? 'l' : '-',
+ vma->vm_flags & VM_IO ? 'i' : '-',
VM_OFFSET(vma));
#if defined(__i386__)
pgprot = pgprot_val(vma->vm_page_prot);
DRM_PROC_PRINT(" %c%c%c%c%c%c%c%c%c",
- pgprot & _PAGE_PRESENT ? 'p' : '-',
- pgprot & _PAGE_RW ? 'w' : 'r',
- pgprot & _PAGE_USER ? 'u' : 's',
- pgprot & _PAGE_PWT ? 't' : 'b',
- pgprot & _PAGE_PCD ? 'u' : 'c',
+ pgprot & _PAGE_PRESENT ? 'p' : '-',
+ pgprot & _PAGE_RW ? 'w' : 'r',
+ pgprot & _PAGE_USER ? 'u' : 's',
+ pgprot & _PAGE_PWT ? 't' : 'b',
+ pgprot & _PAGE_PCD ? 'u' : 'c',
pgprot & _PAGE_ACCESSED ? 'a' : '-',
- pgprot & _PAGE_DIRTY ? 'd' : '-',
- pgprot & _PAGE_PSE ? 'm' : 'k',
- pgprot & _PAGE_GLOBAL ? 'g' : 'l' );
+ pgprot & _PAGE_DIRTY ? 'd' : '-',
+ pgprot & _PAGE_PSE ? 'm' : 'k',
+ pgprot & _PAGE_GLOBAL ? 'g' : 'l');
#endif
DRM_PROC_PRINT("\n");
}
- if (len > request + offset) return request;
+ if (len > request + offset)
+ return request;
*eof = 1;
return len - offset;
}
static int drm_vma_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+ int *eof, void *data)
{
- drm_device_t *dev = (drm_device_t *)data;
- int ret;
+ drm_device_t *dev = (drm_device_t *) data;
+ int ret;
down(&dev->struct_sem);
ret = drm__vma_info(buf, start, offset, request, eof, data);
@@ -538,5 +548,3 @@ static int drm_vma_info(char *buf, char **start, off_t offset, int request,
return ret;
}
#endif
-
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-14 08:42:27 +0000