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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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>
+7
-4
+7
-4
drivers/gpu/drm/v3d/v3d_debugfs.c
+7
-4
drivers/gpu/drm/v3d/v3d_debugfs.c
···
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V3D_READ(v3d_hub_reg_defs[i].reg));
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}
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-
for (i = 0; i < ARRAY_SIZE(v3d_gca_reg_defs); i++) {
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-
seq_printf(m, "%s (0x%04x): 0x%08x\n",
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-
v3d_gca_reg_defs[i].name, v3d_gca_reg_defs[i].reg,
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-
V3D_GCA_READ(v3d_gca_reg_defs[i].reg));
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+
if (v3d->ver < 41) {
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+
for (i = 0; i < ARRAY_SIZE(v3d_gca_reg_defs); i++) {
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+
seq_printf(m, "%s (0x%04x): 0x%08x\n",
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v3d_gca_reg_defs[i].name,
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+
v3d_gca_reg_defs[i].reg,
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V3D_GCA_READ(v3d_gca_reg_defs[i].reg));
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+
}
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}
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for (core = 0; core < v3d->cores; core++) {