patch-2.2.18 linux/drivers/char/drm/proc.c
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- Lines: 578
- Date:
Fri Sep 1 14:12:33 2000
- Orig file:
v2.2.17/drivers/char/drm/proc.c
- Orig date:
Thu Jan 1 01:00:00 1970
diff -u --new-file --recursive --exclude-from /usr/src/exclude v2.2.17/drivers/char/drm/proc.c linux/drivers/char/drm/proc.c
@@ -0,0 +1,577 @@
+/* proc.c -- /proc support for DRM -*- linux-c -*-
+ * Created: Mon Jan 11 09:48:47 1999 by faith@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Rickard E. (Rik) Faith <faith@valinux.com>
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+static struct proc_dir_entry *drm_root = NULL;
+static struct proc_dir_entry *drm_dev_root = NULL;
+static char drm_slot_name[64];
+
+static int drm_name_info(char *buf, char **start, off_t offset,
+ int len, int *eof, void *data);
+static int drm_vm_info(char *buf, char **start, off_t offset,
+ int len, int *eof, void *data);
+static int drm_clients_info(char *buf, char **start, off_t offset,
+ int len, int *eof, void *data);
+static int drm_queues_info(char *buf, char **start, off_t offset,
+ int len, int *eof, void *data);
+static int drm_bufs_info(char *buf, char **start, off_t offset,
+ int len, int *eof, void *data);
+#if DRM_DEBUG_CODE
+static int drm_vma_info(char *buf, char **start, off_t offset,
+ int len, int *eof, void *data);
+#endif
+#if DRM_DMA_HISTOGRAM
+static int drm_histo_info(char *buf, char **start, off_t offset,
+ int len, int *eof, void *data);
+#endif
+
+struct drm_proc_list {
+ const char *name;
+ int (*f)(char *, char **, off_t, int, int *, void *);
+} 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 },
+#if DRM_DEBUG_CODE
+ { "vma", drm_vma_info },
+#endif
+#if DRM_DMA_HISTOGRAM
+ { "histo", drm_histo_info },
+#endif
+};
+#define DRM_PROC_ENTRIES (sizeof(drm_proc_list)/sizeof(drm_proc_list[0]))
+
+int drm_proc_init(drm_device_t *dev)
+{
+ struct proc_dir_entry *ent;
+ int i, j;
+
+ drm_root = create_proc_entry("dri", S_IFDIR, NULL);
+ if (!drm_root) {
+ DRM_ERROR("Cannot create /proc/dri\n");
+ return -1;
+ }
+
+ /* Instead of doing this search, we should
+ add some global support for /proc/dri. */
+ for (i = 0; i < 8; i++) {
+ sprintf(drm_slot_name, "dri/%d", i);
+ drm_dev_root = create_proc_entry(drm_slot_name, S_IFDIR, NULL);
+ if (!drm_dev_root) {
+ DRM_ERROR("Cannot create /proc/%s\n", drm_slot_name);
+ remove_proc_entry("dri", NULL);
+ }
+ if (drm_dev_root->nlink == 2) break;
+ drm_dev_root = NULL;
+ }
+ if (!drm_dev_root) {
+ DRM_ERROR("Cannot find slot in /proc/dri\n");
+ return -1;
+ }
+
+ for (i = 0; i < DRM_PROC_ENTRIES; i++) {
+ ent = create_proc_entry(drm_proc_list[i].name,
+ S_IFREG|S_IRUGO, drm_dev_root);
+ if (!ent) {
+ DRM_ERROR("Cannot create /proc/%s/%s\n",
+ drm_slot_name, drm_proc_list[i].name);
+ for (j = 0; j < i; j++)
+ remove_proc_entry(drm_proc_list[i].name,
+ drm_dev_root);
+ remove_proc_entry(drm_slot_name, NULL);
+ remove_proc_entry("dri", NULL);
+ return -1;
+ }
+ ent->read_proc = drm_proc_list[i].f;
+ ent->data = dev;
+ }
+
+ return 0;
+}
+
+
+int drm_proc_cleanup(void)
+{
+ int i;
+
+ if (drm_root) {
+ if (drm_dev_root) {
+ for (i = 0; i < DRM_PROC_ENTRIES; i++) {
+ remove_proc_entry(drm_proc_list[i].name,
+ drm_dev_root);
+ }
+ remove_proc_entry(drm_slot_name, NULL);
+ }
+ remove_proc_entry("dri", NULL);
+ remove_proc_entry(DRM_NAME, NULL);
+ }
+ drm_root = drm_dev_root = NULL;
+ return 0;
+}
+
+static int drm_name_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+
+ if (offset > 0) return 0; /* no partial requests */
+ len = 0;
+ *eof = 1;
+
+ if (dev->unique) {
+ DRM_PROC_PRINT("%s 0x%x %s\n",
+ dev->name, dev->device, dev->unique);
+ } else {
+ DRM_PROC_PRINT("%s 0x%x\n", dev->name, dev->device);
+ }
+ return len;
+}
+
+static int _drm_vm_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ drm_map_t *map;
+ /* Hardcoded from _DRM_FRAME_BUFFER,
+ _DRM_REGISTERS, _DRM_SHM, and
+ _DRM_AGP. */
+ const char *types[] = { "FB", "REG", "SHM", "AGP" };
+ const char *type;
+ int i;
+
+ if (offset > 0) return 0; /* no partial requests */
+ len = 0;
+ *eof = 1;
+ DRM_PROC_PRINT("slot offset size type flags "
+ "address mtrr\n\n");
+ for (i = 0; i < dev->map_count; i++) {
+ map = dev->maplist[i];
+ if (map->type < 0 || map->type > 3) 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)map->handle);
+ if (map->mtrr < 0) {
+ DRM_PROC_PRINT("none\n");
+ } else {
+ DRM_PROC_PRINT("%4d\n", map->mtrr);
+ }
+ }
+
+ return len;
+}
+
+static int drm_vm_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = _drm_vm_info(buf, start, offset, len, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+
+
+static int _drm_queues_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int i;
+ drm_queue_t *q;
+
+ if (offset > 0) return 0; /* no partial requests */
+ len = 0;
+ *eof = 1;
+ DRM_PROC_PRINT(" 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 %10d %10d %10d\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_read(&q->total_flushed),
+ atomic_read(&q->total_queued),
+ atomic_read(&q->total_locks));
+ atomic_dec(&q->use_count);
+ }
+
+ return len;
+}
+
+static int drm_queues_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = _drm_queues_info(buf, start, offset, len, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+
+/* drm_bufs_info is called whenever a process reads
+ /dev/drm/<dev>/bufs. */
+
+static int _drm_bufs_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ drm_device_dma_t *dma = dev->dma;
+ int i;
+
+ if (!dma) return 0;
+ if (offset > 0) return 0; /* no partial requests */
+ len = 0;
+ *eof = 1;
+ DRM_PROC_PRINT(" 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);
+ }
+ DRM_PROC_PRINT("\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);
+ }
+ DRM_PROC_PRINT("\n");
+
+ return len;
+}
+
+static int drm_bufs_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = _drm_bufs_info(buf, start, offset, len, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+
+
+static int _drm_clients_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ drm_file_t *priv;
+
+ if (offset > 0) return 0; /* no partial requests */
+ len = 0;
+ *eof = 1;
+ DRM_PROC_PRINT("a dev pid uid magic ioctls\n\n");
+ for (priv = dev->file_first; priv; priv = priv->next) {
+ DRM_PROC_PRINT("%c %3d %5d %5d %10u %10lu\n",
+ priv->authenticated ? 'y' : 'n',
+ priv->minor,
+ priv->pid,
+ priv->uid,
+ priv->magic,
+ priv->ioctl_count);
+ }
+
+ return len;
+}
+
+static int drm_clients_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = _drm_clients_info(buf, start, offset, len, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+
+#if DRM_DEBUG_CODE
+
+#define DRM_VMA_VERBOSE 0
+
+static int _drm_vma_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ drm_vma_entry_t *pt;
+ struct vm_area_struct *vma;
+#if DRM_VMA_VERBOSE
+ unsigned long i;
+ unsigned long address;
+ pgd_t *pgd;
+ pmd_t *pmd;
+ pte_t *pte;
+#endif
+#if defined(__i386__)
+ unsigned int pgprot;
+#endif
+
+ if (offset > 0) return 0; /* no partial requests */
+ len = 0;
+ *eof = 1;
+ 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;
+ 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_MAYSHARE ? 's' : 'p',
+ 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_ACCESSED ? 'a' : '-',
+ pgprot & _PAGE_DIRTY ? 'd' : '-',
+ pgprot & _PAGE_PSE ? 'm' : 'k',
+ pgprot & _PAGE_GLOBAL ? 'g' : 'l' );
+#endif
+ DRM_PROC_PRINT("\n");
+#if 0
+ for (i = vma->vm_start; i < vma->vm_end; i += PAGE_SIZE) {
+ pgd = pgd_offset(vma->vm_mm, i);
+ pmd = pmd_offset(pgd, i);
+ pte = pte_offset(pmd, i);
+ if (pte_present(*pte)) {
+ address = __pa(pte_page(*pte))
+ + (i & (PAGE_SIZE-1));
+ DRM_PROC_PRINT(" 0x%08lx -> 0x%08lx"
+ " %c%c%c%c%c\n",
+ i,
+ address,
+ pte_read(*pte) ? 'r' : '-',
+ pte_write(*pte) ? 'w' : '-',
+ pte_exec(*pte) ? 'x' : '-',
+ pte_dirty(*pte) ? 'd' : '-',
+ pte_young(*pte) ? 'a' : '-' );
+ } else {
+ DRM_PROC_PRINT(" 0x%08lx\n", i);
+ }
+ }
+#endif
+ }
+
+ return len;
+}
+
+static int drm_vma_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = _drm_vma_info(buf, start, offset, len, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+#endif
+
+
+#if DRM_DMA_HISTOGRAM
+static int _drm_histo_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ drm_device_dma_t *dma = dev->dma;
+ int i;
+ unsigned long slot_value = DRM_DMA_HISTOGRAM_INITIAL;
+ unsigned long prev_value = 0;
+ drm_buf_t *buffer;
+
+ if (offset > 0) return 0; /* no partial requests */
+ len = 0;
+ *eof = 1;
+
+ DRM_PROC_PRINT("general statistics:\n");
+ DRM_PROC_PRINT("total %10u\n", atomic_read(&dev->histo.total));
+ DRM_PROC_PRINT("open %10u\n", atomic_read(&dev->total_open));
+ DRM_PROC_PRINT("close %10u\n", atomic_read(&dev->total_close));
+ DRM_PROC_PRINT("ioctl %10u\n", atomic_read(&dev->total_ioctl));
+ DRM_PROC_PRINT("irq %10u\n", atomic_read(&dev->total_irq));
+ DRM_PROC_PRINT("ctx %10u\n", atomic_read(&dev->total_ctx));
+
+ DRM_PROC_PRINT("\nlock statistics:\n");
+ DRM_PROC_PRINT("locks %10u\n", atomic_read(&dev->total_locks));
+ DRM_PROC_PRINT("unlocks %10u\n", atomic_read(&dev->total_unlocks));
+ DRM_PROC_PRINT("contends %10u\n", atomic_read(&dev->total_contends));
+ DRM_PROC_PRINT("sleeps %10u\n", atomic_read(&dev->total_sleeps));
+
+
+ if (dma) {
+ DRM_PROC_PRINT("\ndma statistics:\n");
+ DRM_PROC_PRINT("prio %10u\n",
+ atomic_read(&dma->total_prio));
+ DRM_PROC_PRINT("bytes %10u\n",
+ atomic_read(&dma->total_bytes));
+ DRM_PROC_PRINT("dmas %10u\n",
+ atomic_read(&dma->total_dmas));
+ DRM_PROC_PRINT("missed:\n");
+ DRM_PROC_PRINT(" dma %10u\n",
+ atomic_read(&dma->total_missed_dma));
+ DRM_PROC_PRINT(" lock %10u\n",
+ atomic_read(&dma->total_missed_lock));
+ DRM_PROC_PRINT(" free %10u\n",
+ atomic_read(&dma->total_missed_free));
+ DRM_PROC_PRINT(" sched %10u\n",
+ atomic_read(&dma->total_missed_sched));
+ DRM_PROC_PRINT("tried %10u\n",
+ atomic_read(&dma->total_tried));
+ DRM_PROC_PRINT("hit %10u\n",
+ atomic_read(&dma->total_hit));
+ DRM_PROC_PRINT("lost %10u\n",
+ atomic_read(&dma->total_lost));
+
+ buffer = dma->next_buffer;
+ if (buffer) {
+ DRM_PROC_PRINT("next_buffer %7d\n", buffer->idx);
+ } else {
+ DRM_PROC_PRINT("next_buffer none\n");
+ }
+ buffer = dma->this_buffer;
+ if (buffer) {
+ DRM_PROC_PRINT("this_buffer %7d\n", buffer->idx);
+ } else {
+ DRM_PROC_PRINT("this_buffer none\n");
+ }
+ }
+
+
+ DRM_PROC_PRINT("\nvalues:\n");
+ if (dev->lock.hw_lock) {
+ DRM_PROC_PRINT("lock 0x%08x\n",
+ dev->lock.hw_lock->lock);
+ } else {
+ DRM_PROC_PRINT("lock none\n");
+ }
+ DRM_PROC_PRINT("context_flag 0x%08lx\n", dev->context_flag);
+ DRM_PROC_PRINT("interrupt_flag 0x%08lx\n", dev->interrupt_flag);
+ DRM_PROC_PRINT("dma_flag 0x%08lx\n", dev->dma_flag);
+
+ DRM_PROC_PRINT("queue_count %10d\n", dev->queue_count);
+ DRM_PROC_PRINT("last_context %10d\n", dev->last_context);
+ DRM_PROC_PRINT("last_switch %10lu\n", dev->last_switch);
+ DRM_PROC_PRINT("last_checked %10d\n", dev->last_checked);
+
+
+ DRM_PROC_PRINT("\n q2d d2c c2f"
+ " q2c q2f dma sch"
+ " ctx lacq lhld\n\n");
+ for (i = 0; i < DRM_DMA_HISTOGRAM_SLOTS; i++) {
+ DRM_PROC_PRINT("%s %10lu %10u %10u %10u %10u %10u"
+ " %10u %10u %10u %10u %10u\n",
+ i == DRM_DMA_HISTOGRAM_SLOTS - 1 ? ">=" : "< ",
+ i == DRM_DMA_HISTOGRAM_SLOTS - 1
+ ? prev_value : slot_value ,
+
+ atomic_read(&dev->histo
+ .queued_to_dispatched[i]),
+ atomic_read(&dev->histo
+ .dispatched_to_completed[i]),
+ atomic_read(&dev->histo
+ .completed_to_freed[i]),
+
+ atomic_read(&dev->histo
+ .queued_to_completed[i]),
+ atomic_read(&dev->histo
+ .queued_to_freed[i]),
+ atomic_read(&dev->histo.dma[i]),
+ atomic_read(&dev->histo.schedule[i]),
+ atomic_read(&dev->histo.ctx[i]),
+ atomic_read(&dev->histo.lacq[i]),
+ atomic_read(&dev->histo.lhld[i]));
+ prev_value = slot_value;
+ slot_value = DRM_DMA_HISTOGRAM_NEXT(slot_value);
+ }
+ return len;
+}
+
+static int drm_histo_info(char *buf, char **start, off_t offset, int len,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = _drm_histo_info(buf, start, offset, len, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+#endif
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