Commit 6234fc0f authored by Eric Anholt's avatar Eric Anholt

drm/vc4: Make sure that the v3d ident debugfs has vc4's power on.

Otherwise, you sometimes decode the ident fields based on 0xdeadbeef
register reads.
Signed-off-by: default avatarEric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190220210343.28157-7-eric@anholt.netReviewed-by: default avatarPaul Kocialkowski <paul.kocialkowski@bootlin.com>
parent cb74f6ee
......@@ -121,6 +121,9 @@ int vc4_v3d_debugfs_ident(struct seq_file *m, void *unused)
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->dev;
struct vc4_dev *vc4 = to_vc4_dev(dev);
int ret = vc4_v3d_pm_get(vc4);
if (ret == 0) {
uint32_t ident1 = V3D_READ(V3D_IDENT1);
uint32_t nslc = VC4_GET_FIELD(ident1, V3D_IDENT1_NSLC);
uint32_t tups = VC4_GET_FIELD(ident1, V3D_IDENT1_TUPS);
......@@ -133,6 +136,8 @@ int vc4_v3d_debugfs_ident(struct seq_file *m, void *unused)
seq_printf(m, "QPUs: %d\n", nslc * qups);
seq_printf(m, "Semaphores: %d\n",
VC4_GET_FIELD(ident1, V3D_IDENT1_NSEM));
vc4_v3d_pm_put(vc4);
}
return 0;
}
......
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