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| author | Eric Anholt <eric@anholt.net> | 2018-09-29 02:21:26 +0300 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2018-10-15 23:10:54 +0300 |
| commit | 2f20fa8d12e859a03f68bdd81d75830141bc9ac9 (patch) | |
| tree | c29c3d7d062044560503f492b6e84732efc0180a /drivers/gpu/drm/v3d | |
| parent | 4fa825bf405082a342b3a8717337ba58c7260c3f (diff) | |
| download | linux-2f20fa8d12e859a03f68bdd81d75830141bc9ac9.tar.xz | |
drm/v3d: Skip debugfs dumping GCA on platforms without GCA.
Fixes an oops reading this debugfs entry on BCM7278.
Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20180928232126.4332-4-eric@anholt.net
Fixes: 57692c94dcbe ("drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+")
Cc: <stable@vger.kernel.org>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
Diffstat (limited to 'drivers/gpu/drm/v3d')
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_debugfs.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/v3d/v3d_debugfs.c b/drivers/gpu/drm/v3d/v3d_debugfs.c index d48008adb085..eb2b2d2f8553 100644 --- a/drivers/gpu/drm/v3d/v3d_debugfs.c +++ b/drivers/gpu/drm/v3d/v3d_debugfs.c @@ -71,10 +71,13 @@ static int v3d_v3d_debugfs_regs(struct seq_file *m, void *unused) V3D_READ(v3d_hub_reg_defs[i].reg)); } - for (i = 0; i < ARRAY_SIZE(v3d_gca_reg_defs); i++) { - seq_printf(m, "%s (0x%04x): 0x%08x\n", - v3d_gca_reg_defs[i].name, v3d_gca_reg_defs[i].reg, - V3D_GCA_READ(v3d_gca_reg_defs[i].reg)); + if (v3d->ver < 41) { + for (i = 0; i < ARRAY_SIZE(v3d_gca_reg_defs); i++) { + seq_printf(m, "%s (0x%04x): 0x%08x\n", + v3d_gca_reg_defs[i].name, + v3d_gca_reg_defs[i].reg, + V3D_GCA_READ(v3d_gca_reg_defs[i].reg)); + } } for (core = 0; core < v3d->cores; core++) { |