From 67287964dae3aae65ec006f15c094936f0146812 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Wed, 19 Sep 2018 13:13:51 -0400 Subject: [PATCH] drm/nouveau: Add strap_peek to debugfs Since we already expose the vbios.rom file here, why not also expose the strap_peek? Signed-off-by: Lyude Paul Reviewed-by: Karol Herbst Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_debugfs.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c b/drivers/gpu/drm/nouveau/nouveau_debugfs.c index 9109b69cd052..7379c20584a2 100644 --- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c +++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c @@ -46,6 +46,26 @@ nouveau_debugfs_vbios_image(struct seq_file *m, void *data) return 0; } +static int +nouveau_debugfs_strap_peek(struct seq_file *m, void *data) +{ + struct drm_info_node *node = m->private; + struct nouveau_drm *drm = nouveau_drm(node->minor->dev); + int ret; + + ret = pm_runtime_get_sync(drm->dev->dev); + if (ret < 0 && ret != -EACCES) + return ret; + + seq_printf(m, "0x%08x\n", + nvif_rd32(&drm->client.device.object, 0x101000)); + + pm_runtime_mark_last_busy(drm->dev->dev); + pm_runtime_put_autosuspend(drm->dev->dev); + + return 0; +} + static int nouveau_debugfs_pstate_get(struct seq_file *m, void *data) { @@ -185,7 +205,8 @@ static const struct file_operations nouveau_pstate_fops = { }; static struct drm_info_list nouveau_debugfs_list[] = { - { "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL }, + { "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL }, + { "strap_peek", nouveau_debugfs_strap_peek, 0, NULL }, }; #define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list) -- 2.30.2