linux/drivers/gpu/drm/nouveau/nouveau_debugfs.c
Ben Skeggs a76fb4e8ff drm/nouveau: detect vram amount once, and save the value
As opposed to repeatedly reading the amount back from the GPU every
time we need to know the VRAM size.

We should now fail to load gracefully on detecting no VRAM, rather than
something potentially messy happening.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09 10:12:02 +10:00

178 lines
5.5 KiB
C

/*
* Copyright (C) 2009 Red Hat <bskeggs@redhat.com>
*
* 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 THE COPYRIGHT OWNER(S) 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:
* Ben Skeggs <bskeggs@redhat.com>
*/
#include <linux/debugfs.h>
#include "drmP.h"
#include "nouveau_drv.h"
static int
nouveau_debugfs_channel_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct nouveau_channel *chan = node->info_ent->data;
seq_printf(m, "channel id : %d\n", chan->id);
seq_printf(m, "cpu fifo state:\n");
seq_printf(m, " base: 0x%08x\n", chan->pushbuf_base);
seq_printf(m, " max: 0x%08x\n", chan->dma.max << 2);
seq_printf(m, " cur: 0x%08x\n", chan->dma.cur << 2);
seq_printf(m, " put: 0x%08x\n", chan->dma.put << 2);
seq_printf(m, " free: 0x%08x\n", chan->dma.free << 2);
if (chan->dma.ib_max) {
seq_printf(m, " ib max: 0x%08x\n", chan->dma.ib_max);
seq_printf(m, " ib put: 0x%08x\n", chan->dma.ib_put);
seq_printf(m, " ib free: 0x%08x\n", chan->dma.ib_free);
}
seq_printf(m, "gpu fifo state:\n");
seq_printf(m, " get: 0x%08x\n",
nvchan_rd32(chan, chan->user_get));
seq_printf(m, " put: 0x%08x\n",
nvchan_rd32(chan, chan->user_put));
if (chan->dma.ib_max) {
seq_printf(m, " ib get: 0x%08x\n",
nvchan_rd32(chan, 0x88));
seq_printf(m, " ib put: 0x%08x\n",
nvchan_rd32(chan, 0x8c));
}
seq_printf(m, "last fence : %d\n", chan->fence.sequence);
seq_printf(m, "last signalled: %d\n", chan->fence.sequence_ack);
return 0;
}
int
nouveau_debugfs_channel_init(struct nouveau_channel *chan)
{
struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
struct drm_minor *minor = chan->dev->primary;
int ret;
if (!dev_priv->debugfs.channel_root) {
dev_priv->debugfs.channel_root =
debugfs_create_dir("channel", minor->debugfs_root);
if (!dev_priv->debugfs.channel_root)
return -ENOENT;
}
snprintf(chan->debugfs.name, 32, "%d", chan->id);
chan->debugfs.info.name = chan->debugfs.name;
chan->debugfs.info.show = nouveau_debugfs_channel_info;
chan->debugfs.info.driver_features = 0;
chan->debugfs.info.data = chan;
ret = drm_debugfs_create_files(&chan->debugfs.info, 1,
dev_priv->debugfs.channel_root,
chan->dev->primary);
if (ret == 0)
chan->debugfs.active = true;
return ret;
}
void
nouveau_debugfs_channel_fini(struct nouveau_channel *chan)
{
struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
if (!chan->debugfs.active)
return;
drm_debugfs_remove_files(&chan->debugfs.info, 1, chan->dev->primary);
chan->debugfs.active = false;
if (chan == dev_priv->channel) {
debugfs_remove(dev_priv->debugfs.channel_root);
dev_priv->debugfs.channel_root = NULL;
}
}
static int
nouveau_debugfs_chipset_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_minor *minor = node->minor;
struct drm_device *dev = minor->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
uint32_t ppci_0;
ppci_0 = nv_rd32(dev, dev_priv->chipset >= 0x40 ? 0x88000 : 0x1800);
seq_printf(m, "PMC_BOOT_0: 0x%08x\n", nv_rd32(dev, NV03_PMC_BOOT_0));
seq_printf(m, "PCI ID : 0x%04x:0x%04x\n",
ppci_0 & 0xffff, ppci_0 >> 16);
return 0;
}
static int
nouveau_debugfs_memory_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_minor *minor = node->minor;
struct drm_nouveau_private *dev_priv = minor->dev->dev_private;
seq_printf(m, "VRAM total: %dKiB\n", (int)(dev_priv->vram_size >> 10));
return 0;
}
static int
nouveau_debugfs_vbios_image(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_nouveau_private *dev_priv = node->minor->dev->dev_private;
int i;
for (i = 0; i < dev_priv->vbios.length; i++)
seq_printf(m, "%c", dev_priv->vbios.data[i]);
return 0;
}
static struct drm_info_list nouveau_debugfs_list[] = {
{ "chipset", nouveau_debugfs_chipset_info, 0, NULL },
{ "memory", nouveau_debugfs_memory_info, 0, NULL },
{ "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL },
};
#define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list)
int
nouveau_debugfs_init(struct drm_minor *minor)
{
drm_debugfs_create_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
return 0;
}
void
nouveau_debugfs_takedown(struct drm_minor *minor)
{
drm_debugfs_remove_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES,
minor);
}