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drm/nouveau: debugfs: implement DRM GPU VA debugfs 

Provide the driver indirection iterating over all DRM GPU VA spaces to
enable the common 'gpuvas' debugfs file for dumping DRM GPU VA spaces.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230804182406.5222-13-dakr@redhat.com
This commit is contained in:
Danilo Krummrich 2023-08-04 20:23:52 +02:00
parent b88baab828
commit 82d750e9d2
1 changed files with 39 additions and 0 deletions
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39
drivers/gpu/drm/nouveau/nouveau_debugfs.c
View File

@ -203,6 +203,44 @@ nouveau_debugfs_pstate_open(struct inode *inode, struct file *file)
return single_open(file, nouveau_debugfs_pstate_get, inode->i_private);
}
static void
nouveau_debugfs_gpuva_regions(struct seq_file *m, struct nouveau_uvmm *uvmm)
{
MA_STATE(mas, &uvmm->region_mt, 0, 0);
struct nouveau_uvma_region *reg;
seq_puts (m, " VA regions | start | range | end \n");
seq_puts (m, "----------------------------------------------------------------------------\n");
mas_for_each(&mas, reg, ULONG_MAX)
seq_printf(m, " | 0x%016llx | 0x%016llx | 0x%016llx\n",
reg->va.addr, reg->va.range, reg->va.addr + reg->va.range);
}
static int
nouveau_debugfs_gpuva(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct nouveau_drm *drm = nouveau_drm(node->minor->dev);
struct nouveau_cli *cli;
mutex_lock(&drm->clients_lock);
list_for_each_entry(cli, &drm->clients, head) {
struct nouveau_uvmm *uvmm = nouveau_cli_uvmm(cli);
if (!uvmm)
continue;
nouveau_uvmm_lock(uvmm);
drm_debugfs_gpuva_info(m, &uvmm->umgr);
seq_puts(m, "\n");
nouveau_debugfs_gpuva_regions(m, uvmm);
nouveau_uvmm_unlock(uvmm);
}
mutex_unlock(&drm->clients_lock);
return 0;
}
static const struct file_operations nouveau_pstate_fops = {
.owner = THIS_MODULE,
.open = nouveau_debugfs_pstate_open,
@ -214,6 +252,7 @@ static const struct file_operations nouveau_pstate_fops = {
static struct drm_info_list nouveau_debugfs_list[] = {
{ "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL },
{ "strap_peek", nouveau_debugfs_strap_peek, 0, NULL },
DRM_DEBUGFS_GPUVA_INFO(nouveau_debugfs_gpuva, NULL),
};
#define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list)