[Intel-gfx] [PATCH] convert proc files to seq_file
Ben Gamari
bgamari at gmail.com
Thu Jan 15 01:27:34 CET 2009
---
drivers/gpu/drm/drm_proc.c | 726 ++++++++++++++++----------------------------
1 files changed, 266 insertions(+), 460 deletions(-)
diff --git a/drivers/gpu/drm/drm_proc.c b/drivers/gpu/drm/drm_proc.c
index 8df849f..b949e89 100644
--- a/drivers/gpu/drm/drm_proc.c
+++ b/drivers/gpu/drm/drm_proc.c
@@ -37,216 +37,45 @@
* OTHER DEALINGS IN THE SOFTWARE.
*/
+#include <linux/seq_file.h>
#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_vblank_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data);
-static int drm_gem_name_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data);
-static int drm_gem_object_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);
-#endif
-
-/**
- * Proc file list.
- */
-static struct drm_proc_list {
- const char *name; /**< file name */
- int (*f) (char *, char **, off_t, int, int *, void *); /**< proc callback*/
- u32 driver_features; /**< Required driver features for this entry */
-} drm_proc_list[] = {
- {"name", drm_name_info, 0},
- {"mem", drm_mem_info, 0},
- {"vm", drm_vm_info, 0},
- {"clients", drm_clients_info, 0},
- {"queues", drm_queues_info, 0},
- {"bufs", drm_bufs_info, 0},
- {"vblank", drm_vblank_info, 0},
- {"gem_names", drm_gem_name_info, DRIVER_GEM},
- {"gem_objects", drm_gem_object_info, DRIVER_GEM},
-#if DRM_DEBUG_CODE
- {"vma", drm_vma_info},
-#endif
-};
-
-#define DRM_PROC_ENTRIES ARRAY_SIZE(drm_proc_list)
-
-/**
- * Initialize the DRI proc filesystem for a device.
- *
- * \param dev DRM device.
- * \param minor device minor number.
- * \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(struct drm_minor *minor, int minor_id,
- struct proc_dir_entry *root)
-{
- struct drm_device *dev = minor->dev;
- struct proc_dir_entry *ent;
- int i, j, ret;
- char name[64];
-
- sprintf(name, "%d", minor_id);
- minor->dev_root = proc_mkdir(name, root);
- if (!minor->dev_root) {
- DRM_ERROR("Cannot create /proc/dri/%s\n", name);
- return -1;
- }
-
- for (i = 0; i < DRM_PROC_ENTRIES; i++) {
- u32 features = drm_proc_list[i].driver_features;
-
- if (features != 0 &&
- (dev->driver->driver_features & features) != features)
- continue;
-
- ent = create_proc_entry(drm_proc_list[i].name,
- S_IFREG | S_IRUGO, minor->dev_root);
- if (!ent) {
- DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
- name, drm_proc_list[i].name);
- ret = -1;
- goto fail;
- }
- ent->read_proc = drm_proc_list[i].f;
- ent->data = minor;
- }
-
- if (dev->driver->proc_init) {
- ret = dev->driver->proc_init(minor);
- if (ret) {
- DRM_ERROR("DRM: Driver failed to initialize "
- "/proc/dri.\n");
- goto fail;
- }
- }
-
- return 0;
- fail:
-
- for (j = 0; j < i; j++)
- remove_proc_entry(drm_proc_list[i].name,
- minor->dev_root);
- remove_proc_entry(name, root);
- minor->dev_root = NULL;
- return ret;
-}
-
-/**
- * Cleanup the proc filesystem resources.
- *
- * \param minor device minor number.
- * \param root DRI proc dir entry.
- * \param dev_root DRI device proc dir entry.
- * \return always zero.
- *
- * Remove all proc entries created by proc_init().
- */
-int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root)
-{
- struct drm_device *dev = minor->dev;
- int i;
- char name[64];
-
- if (!root || !minor->dev_root)
- return 0;
-
- if (dev->driver->proc_cleanup)
- dev->driver->proc_cleanup(minor);
-
- for (i = 0; i < DRM_PROC_ENTRIES; i++)
- remove_proc_entry(drm_proc_list[i].name, minor->dev_root);
- sprintf(name, "%d", minor->index);
- remove_proc_entry(name, root);
-
- return 0;
-}
/**
* Called when "/proc/dri/.../name" is read.
*
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \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)
+static int drm_name_info(struct seq_file *m, void *data)
{
- struct drm_minor *minor = (struct drm_minor *) data;
+ struct drm_minor *minor = (struct drm_minor *) m->private;
struct drm_master *master = minor->master;
struct drm_device *dev = minor->dev;
- int len = 0;
-
- if (offset > DRM_PROC_LIMIT) {
- *eof = 1;
- return 0;
- }
if (!master)
return 0;
- *start = &buf[offset];
- *eof = 0;
-
if (master->unique) {
- DRM_PROC_PRINT("%s %s %s\n",
- dev->driver->pci_driver.name,
- pci_name(dev->pdev), master->unique);
+ seq_printf(m, "%s %s %s\n",
+ dev->driver->pci_driver.name,
+ pci_name(dev->pdev), master->unique);
} else {
- DRM_PROC_PRINT("%s %s\n", dev->driver->pci_driver.name,
- pci_name(dev->pdev));
+ seq_printf(m, "%s %s\n", dev->driver->pci_driver.name,
+ pci_name(dev->pdev));
}
- if (len > request + offset)
- return request;
- *eof = 1;
- return len - offset;
+ return 0;
}
/**
* Called when "/proc/dri/.../vm" is read.
*
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \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)
+static void drm__vm_info(struct seq_file *m, void *data)
{
- struct drm_minor *minor = (struct drm_minor *) data;
+ struct drm_minor *minor = (struct drm_minor *) m->private;
struct drm_device *dev = minor->dev;
- int len = 0;
struct drm_map *map;
struct drm_map_list *r_list;
@@ -257,16 +86,7 @@ static int drm__vm_info(char *buf, char **start, off_t offset, int request,
const char *type;
int i;
- if (offset > DRM_PROC_LIMIT) {
- *eof = 1;
- return 0;
- }
-
- *start = &buf[offset];
- *eof = 0;
-
- DRM_PROC_PRINT("slot offset size type flags "
- "address mtrr\n\n");
+ seq_printf(m, "slot offset size type flags address mtrr\n\n");
i = 0;
list_for_each_entry(r_list, &dev->maplist, head) {
map = r_list->map;
@@ -276,188 +96,129 @@ static int drm__vm_info(char *buf, char **start, off_t offset, int request,
type = "??";
else
type = types[map->type];
- DRM_PROC_PRINT("%4d 0x%08lx 0x%08lx %4.4s 0x%02x 0x%08lx ",
- i,
- map->offset,
- map->size, type, map->flags,
- (unsigned long) r_list->user_token);
+
+ seq_printf(m, "%4d 0x%08lx 0x%08lx %4.4s 0x%02x 0x%08lx ",
+ i,
+ map->offset,
+ map->size, type, map->flags,
+ (unsigned long) r_list->user_token);
if (map->mtrr < 0) {
- DRM_PROC_PRINT("none\n");
+ seq_printf(m, "none\n");
} else {
- DRM_PROC_PRINT("%4d\n", map->mtrr);
+ seq_printf(m, "%4d\n", map->mtrr);
}
i++;
}
-
- if (len > request + offset)
- return request;
- *eof = 1;
- return len - offset;
}
/**
* Simply calls _vm_info() while holding the drm_device::struct_mutex lock.
*/
-static int drm_vm_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+static int drm_vm_info(struct seq_file *m, void *data)
{
- struct drm_minor *minor = (struct drm_minor *) data;
+ struct drm_minor *minor = (struct drm_minor *) m->private;
struct drm_device *dev = minor->dev;
- int ret;
mutex_lock(&dev->struct_mutex);
- ret = drm__vm_info(buf, start, offset, request, eof, data);
+ drm__vm_info(m, data);
mutex_unlock(&dev->struct_mutex);
- return ret;
+ return 0;
}
/**
* Called when "/proc/dri/.../queues" is read.
- *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
*/
-static int drm__queues_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data)
+static void drm__queues_info(struct seq_file *m, void *data)
{
- struct drm_minor *minor = (struct drm_minor *) data;
+ struct drm_minor *minor = (struct drm_minor *) m->private;
struct drm_device *dev = minor->dev;
- int len = 0;
int i;
struct drm_queue *q;
- if (offset > DRM_PROC_LIMIT) {
- *eof = 1;
- return 0;
- }
-
- *start = &buf[offset];
- *eof = 0;
-
- DRM_PROC_PRINT(" ctx/flags use fin"
- " blk/rw/rwf wait flushed queued"
- " locks\n\n");
+ seq_printf(m, " ctx/flags use fin"
+ " blk/rw/rwf wait flushed queued"
+ " locks\n\n");
for (i = 0; i < dev->queue_count; i++) {
q = dev->queuelist[i];
atomic_inc(&q->use_count);
- DRM_PROC_PRINT_RET(atomic_dec(&q->use_count),
- "%5d/0x%03x %5d %5d"
- " %5d/%c%c/%c%c%c %5Zd\n",
- i,
- q->flags,
- atomic_read(&q->use_count),
- atomic_read(&q->finalization),
- 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' : '-',
- DRM_BUFCOUNT(&q->waitlist));
+ seq_printf(m, "%5d/0x%03x %5d %5d"
+ " %5d/%c%c/%c%c%c %5Zd\n",
+ i,
+ q->flags,
+ atomic_read(&q->use_count),
+ atomic_read(&q->finalization),
+ 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' : '-',
+ DRM_BUFCOUNT(&q->waitlist));
atomic_dec(&q->use_count);
}
-
- if (len > request + offset)
- return request;
- *eof = 1;
- return len - offset;
}
/**
* Simply calls _queues_info() while holding the drm_device::struct_mutex lock.
*/
-static int drm_queues_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+static int drm_queues_info(struct seq_file *m, void *data)
{
- struct drm_minor *minor = (struct drm_minor *) data;
+ struct drm_minor *minor = (struct drm_minor *) m->private;
struct drm_device *dev = minor->dev;
- int ret;
mutex_lock(&dev->struct_mutex);
- ret = drm__queues_info(buf, start, offset, request, eof, data);
+ drm__queues_info(m, data);
mutex_unlock(&dev->struct_mutex);
- return ret;
+ return 0;
}
/**
* Called when "/proc/dri/.../bufs" is read.
- *
- * \param buf output buffer.
- * \param start start of output data.
- * \param offset requested start offset.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
*/
-static int drm__bufs_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+static void drm__bufs_info(struct seq_file *m, void *data)
{
- struct drm_minor *minor = (struct drm_minor *) data;
+ struct drm_minor *minor = (struct drm_minor *) m->private;
struct drm_device *dev = minor->dev;
- int len = 0;
struct drm_device_dma *dma = dev->dma;
int i;
- if (!dma || offset > DRM_PROC_LIMIT) {
- *eof = 1;
- return 0;
- }
+ if (!dma)
+ return;
- *start = &buf[offset];
- *eof = 0;
-
- DRM_PROC_PRINT(" o size count free segs pages kB\n\n");
+ seq_printf(m, " o size count free segs pages kB\n\n");
for (i = 0; i <= DRM_MAX_ORDER; i++) {
if (dma->bufs[i].buf_count)
- DRM_PROC_PRINT("%2d %8d %5d %5d %5d %5d %5ld\n",
- i,
- dma->bufs[i].buf_size,
- dma->bufs[i].buf_count,
- atomic_read(&dma->bufs[i]
- .freelist.count),
- dma->bufs[i].seg_count,
- dma->bufs[i].seg_count
- * (1 << dma->bufs[i].page_order),
- (dma->bufs[i].seg_count
- * (1 << dma->bufs[i].page_order))
- * PAGE_SIZE / 1024);
+ seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
+ i,
+ dma->bufs[i].buf_size,
+ dma->bufs[i].buf_count,
+ atomic_read(&dma->bufs[i].freelist.count),
+ dma->bufs[i].seg_count,
+ dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order),
+ (dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order))
+ * PAGE_SIZE / 1024);
}
- DRM_PROC_PRINT("\n");
+ seq_printf(m, "\n");
for (i = 0; i < dma->buf_count; i++) {
if (i && !(i % 32))
- DRM_PROC_PRINT("\n");
- DRM_PROC_PRINT(" %d", dma->buflist[i]->list);
+ seq_printf(m, "\n");
+ seq_printf(m, " %d", dma->buflist[i]->list);
}
- DRM_PROC_PRINT("\n");
-
- if (len > request + offset)
- return request;
- *eof = 1;
- return len - offset;
+ seq_printf(m, "\n");
}
/**
* Simply calls _bufs_info() while holding the drm_device::struct_mutex lock.
*/
-static int drm_bufs_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+static int drm_bufs_info(struct seq_file *m, void *data)
{
- struct drm_minor *minor = (struct drm_minor *) data;
+ struct drm_minor *minor = (struct drm_minor *) m->private;
struct drm_device *dev = minor->dev;
- int ret;
mutex_lock(&dev->struct_mutex);
- ret = drm__bufs_info(buf, start, offset, request, eof, data);
+ drm__bufs_info(m, data);
mutex_unlock(&dev->struct_mutex);
- return ret;
+ return 0;
}
/**
@@ -523,211 +284,256 @@ static int drm_vblank_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.
- * \param request requested number of bytes.
- * \param eof whether there is no more data to return.
- * \param data private data.
- * \return number of written bytes.
*/
-static int drm__clients_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data)
+static void drm__clients_info(struct seq_file *m, void *data)
{
- struct drm_minor *minor = (struct drm_minor *) data;
+ struct drm_minor *minor = (struct drm_minor *) m->private;
struct drm_device *dev = minor->dev;
- int len = 0;
struct drm_file *priv;
- if (offset > DRM_PROC_LIMIT) {
- *eof = 1;
- return 0;
- }
-
- *start = &buf[offset];
- *eof = 0;
-
- DRM_PROC_PRINT("a dev pid uid magic ioctls\n\n");
+ seq_printf(m, "a dev pid uid magic ioctls\n\n");
list_for_each_entry(priv, &dev->filelist, lhead) {
- DRM_PROC_PRINT("%c %3d %5d %5d %10u %10lu\n",
- priv->authenticated ? 'y' : 'n',
- priv->minor->index,
- priv->pid,
- priv->uid, priv->magic, priv->ioctl_count);
+ seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
+ priv->authenticated ? 'y' : 'n',
+ priv->minor->index,
+ priv->pid,
+ priv->uid, priv->magic, priv->ioctl_count);
}
-
- if (len > request + offset)
- return request;
- *eof = 1;
- return len - offset;
}
/**
* Simply calls _clients_info() while holding the drm_device::struct_mutex lock.
*/
-static int drm_clients_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data)
+static int drm_clients_info(struct seq_file *m, void* data)
{
- struct drm_minor *minor = (struct drm_minor *) data;
+ struct drm_minor *minor = (struct drm_minor *) m->private;
struct drm_device *dev = minor->dev;
- int ret;
mutex_lock(&dev->struct_mutex);
- ret = drm__clients_info(buf, start, offset, request, eof, data);
+ drm__clients_info(m, data);
mutex_unlock(&dev->struct_mutex);
- return ret;
+ return 0;
}
-struct drm_gem_name_info_data {
- int len;
- char *buf;
- int eof;
-};
-
static int drm_gem_one_name_info(int id, void *ptr, void *data)
{
struct drm_gem_object *obj = ptr;
- struct drm_gem_name_info_data *nid = data;
+ struct seq_file *m = data;
- DRM_INFO("name %d size %zd\n", obj->name, obj->size);
- if (nid->eof)
- return 0;
+ seq_printf(m, "name %d size %zd\n", obj->name, obj->size);
- nid->len += sprintf(&nid->buf[nid->len],
- "%6d %8zd %7d %8d\n",
- obj->name, obj->size,
- atomic_read(&obj->handlecount.refcount),
- atomic_read(&obj->refcount.refcount));
- if (nid->len > DRM_PROC_LIMIT) {
- nid->eof = 1;
- return 0;
- }
+ seq_printf(m, "%6d %8zd %7d %8d\n",
+ obj->name, obj->size,
+ atomic_read(&obj->handlecount.refcount),
+ atomic_read(&obj->refcount.refcount));
return 0;
}
-static int drm_gem_name_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data)
+static int drm_gem_name_info(struct seq_file *m, void *data)
{
- struct drm_minor *minor = (struct drm_minor *) data;
+ struct drm_minor *minor = (struct drm_minor *) m->private;
struct drm_device *dev = minor->dev;
- struct drm_gem_name_info_data nid;
- if (offset > DRM_PROC_LIMIT) {
- *eof = 1;
- return 0;
- }
+ seq_printf(m, " name size handles refcount\n");
+ idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
+ return 0;
+}
- nid.len = sprintf(buf, " name size handles refcount\n");
- nid.buf = buf;
- nid.eof = 0;
- idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, &nid);
+static int drm_gem_object_info(struct seq_file *m, void* data)
+{
+ struct drm_minor *minor = (struct drm_minor *) m->private;
+ struct drm_device *dev = minor->dev;
- *start = &buf[offset];
- *eof = 0;
- if (nid.len > request + offset)
- return request;
- *eof = 1;
- return nid.len - offset;
+ seq_printf(m, "%d objects\n", atomic_read(&dev->object_count));
+ seq_printf(m, "%d object bytes\n", atomic_read(&dev->object_memory));
+ seq_printf(m, "%d pinned\n", atomic_read(&dev->pin_count));
+ seq_printf(m, "%d pin bytes\n", atomic_read(&dev->pin_memory));
+ seq_printf(m, "%d gtt bytes\n", atomic_read(&dev->gtt_memory));
+ seq_printf(m, "%d gtt total\n", dev->gtt_total);
+ return 0;
}
-static int drm_gem_object_info(char *buf, char **start, off_t offset,
- int request, int *eof, void *data)
+
+/***************************************************
+ * Initialization, etc.
+ **************************************************/
+
+/**
+ * Proc file list.
+ */
+static struct drm_proc_list drm_proc_list[] = {
+ {"name", drm_name_info, 0},
+ /*{"mem", drm_mem_info, 0},*/
+ {"vm", drm_vm_info, 0},
+ {"clients", drm_clients_info, 0},
+ {"queues", drm_queues_info, 0},
+ {"bufs", drm_bufs_info, 0},
+ {"gem_names", drm_gem_name_info, DRIVER_GEM},
+ {"gem_objects", drm_gem_object_info, DRIVER_GEM},
+};
+
+#define DRM_PROC_ENTRIES ARRAY_SIZE(drm_proc_list)
+
+static int drm_proc_open(struct inode *inode, struct file *file)
+{
+ struct drm_proc_node* node = (struct drm_proc_node*) PDE(inode)->data;
+ return single_open(file, node->proc_ent->show, node->minor);
+}
+
+static struct file_operations drm_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+
+/**
+ * Initialize a given set of proc files for a device
+ *
+ * \param files The array of files to create
+ * \param count The number of files given
+ * \param root DRI proc dir entry.
+ * \param minor device minor number
+ * \return Zero on success, non-zero on failure
+ *
+ * Create a given set of proc files represented by an array of
+ * gdm_proc_lists in the given root directory.
+ */
+int drm_proc_create_files(struct drm_proc_list *files, int count, struct proc_dir_entry *root, struct drm_minor *minor)
{
- struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
- int len = 0;
+ struct proc_dir_entry *ent;
+ struct drm_proc_node *tmp;
+ char name[64];
+ int i, ret;
- if (offset > DRM_PROC_LIMIT) {
- *eof = 1;
- return 0;
+ for (i = 0; i < count; i++) {
+ u32 features = files[i].driver_features;
+
+ if (features != 0 &&
+ (dev->driver->driver_features & features) != features)
+ continue;
+
+ tmp = (struct drm_proc_node*) drm_alloc(
+ sizeof(struct drm_proc_node), _DRM_DRIVER);
+ ent = create_proc_entry(files[i].name, S_IFREG | S_IRUGO, root);
+ if (!ent) {
+ DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
+ name, files[i].name);
+ drm_free(tmp, sizeof(struct drm_proc_node), _DRM_DRIVER);
+ ret = -1;
+ goto fail;
+ }
+
+ ent->proc_fops = &drm_proc_fops;
+ ent->data = tmp;
+ tmp->minor = minor;
+ tmp->proc_ent = &files[i];
+ list_add( &(tmp->list), &(minor->proc_nodes.list) );
}
+ return 0;
- *start = &buf[offset];
- *eof = 0;
- DRM_PROC_PRINT("%d objects\n", atomic_read(&dev->object_count));
- DRM_PROC_PRINT("%d object bytes\n", atomic_read(&dev->object_memory));
- DRM_PROC_PRINT("%d pinned\n", atomic_read(&dev->pin_count));
- DRM_PROC_PRINT("%d pin bytes\n", atomic_read(&dev->pin_memory));
- DRM_PROC_PRINT("%d gtt bytes\n", atomic_read(&dev->gtt_memory));
- DRM_PROC_PRINT("%d gtt total\n", dev->gtt_total);
- if (len > request + offset)
- return request;
- *eof = 1;
- return len - offset;
+fail:
+ for (i = 0; i < count; i++)
+ remove_proc_entry(drm_proc_list[i].name, minor->proc_root);
+ return ret;
}
-#if DRM_DEBUG_CODE
-
-static int drm__vma_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+/**
+ * Initialize the DRI proc filesystem for a device
+ *
+ * \param dev DRM device
+ * \param minor device minor number
+ * \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(struct drm_minor *minor, int minor_id,
+ struct proc_dir_entry *root)
{
- struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
- int len = 0;
- struct drm_vma_entry *pt;
- struct vm_area_struct *vma;
-#if defined(__i386__)
- unsigned int pgprot;
-#endif
+ char name[64];
+ int ret;
- if (offset > DRM_PROC_LIMIT) {
- *eof = 1;
- return 0;
+ INIT_LIST_HEAD(&minor->proc_nodes.list);
+ sprintf(name, "%d", minor_id);
+ minor->proc_root = proc_mkdir(name, root);
+ if (!minor->proc_root) {
+ DRM_ERROR("Cannot create /proc/dri/%s\n", name);
+ return -1;
}
- *start = &buf[offset];
- *eof = 0;
+ ret = drm_proc_create_files(drm_proc_list, DRM_PROC_ENTRIES,
+ minor->proc_root, minor);
+ if (ret) {
+ remove_proc_entry(name, root);
+ minor->proc_root = NULL;
+ DRM_ERROR("Failed to create core drm proc files\n");
+ return ret;
+ }
- 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));
- list_for_each_entry(pt, &dev->vmalist, head) {
- if (!(vma = pt->vma))
- continue;
- DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000",
- 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_MAYSHARE ? 's' : 'p',
- vma->vm_flags & VM_LOCKED ? 'l' : '-',
- vma->vm_flags & VM_IO ? 'i' : '-',
- vma->vm_pgoff);
-
-#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_ACCESSED ? 'a' : '-',
- pgprot & _PAGE_DIRTY ? 'd' : '-',
- pgprot & _PAGE_PSE ? 'm' : 'k',
- pgprot & _PAGE_GLOBAL ? 'g' : 'l');
-#endif
- DRM_PROC_PRINT("\n");
+ if (dev->driver->proc_init) {
+ ret = dev->driver->proc_init(minor);
+ if (ret) {
+ DRM_ERROR("DRM: Driver failed to initialize "
+ "/proc/dri.\n");
+ return ret;
+ }
}
+ return 0;
+}
- if (len > request + offset)
- return request;
- *eof = 1;
- return len - offset;
+int drm_proc_remove_files(struct drm_proc_list *files, int count, struct drm_minor *minor)
+{
+ struct list_head *pos, *q;
+ struct drm_proc_node* tmp;
+ int i;
+
+ for (i=0; i < count; i++) {
+ list_for_each_safe(pos, q, &minor->proc_nodes.list) {
+ tmp = list_entry(pos, struct drm_proc_node, list);
+ if (tmp->proc_ent == &files[i]) {
+ remove_proc_entry(files[i].name, minor->proc_root);
+ list_del(pos);
+ drm_free(tmp, sizeof(struct drm_proc_node), _DRM_DRIVER);
+ }
+ }
+ }
+ return 0;
}
-static int drm_vma_info(char *buf, char **start, off_t offset, int request,
- int *eof, void *data)
+/**
+ * Cleanup the proc filesystem resources.
+ *
+ * \param minor device minor number.
+ * \param root DRI proc dir entry.
+ * \param dev_root DRI device proc dir entry.
+ * \return always zero.
+ *
+ * Remove all proc entries created by proc_init().
+ */
+int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root)
{
- struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
- int ret;
+ char name[64];
- mutex_lock(&dev->struct_mutex);
- ret = drm__vma_info(buf, start, offset, request, eof, data);
- mutex_unlock(&dev->struct_mutex);
- return ret;
+ if (!root || !minor->proc_root)
+ return 0;
+
+ if (dev->driver->proc_cleanup)
+ dev->driver->proc_cleanup(minor);
+
+ drm_proc_remove_files(drm_proc_list, DRM_PROC_ENTRIES, minor);
+
+ sprintf(name, "%d", minor->index);
+ remove_proc_entry(name, root);
+
+ return 0;
}
-#endif
+
--
1.6.0.6
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