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drm/i915: there's no DSPSIZE register on gen4+ 

So don't read it when capturing the error state. This solves some
"unclaimed register" messages on Haswell when we hang the GPU.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2013-03-06 20:03:13 -03:00 committed by Daniel Vetter
parent a18c4c3d8f
commit 51889b3522
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/i915/intel_display.c
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@ -9346,7 +9346,8 @@ intel_display_capture_error_state(struct drm_device *dev)
error->plane[i].control = I915_READ(DSPCNTR(i));
error->plane[i].stride = I915_READ(DSPSTRIDE(i));
error->plane[i].size = I915_READ(DSPSIZE(i));
if (INTEL_INFO(dev)->gen <= 3)
error->plane[i].size = I915_READ(DSPSIZE(i));
error->plane[i].pos = I915_READ(DSPPOS(i));
error->plane[i].addr = I915_READ(DSPADDR(i));
if (INTEL_INFO(dev)->gen >= 4) {
@ -9390,7 +9391,8 @@ intel_display_print_error_state(struct seq_file *m,
seq_printf(m, "Plane [%d]:\n", i);
seq_printf(m, " CNTR: %08x\n", error->plane[i].control);
seq_printf(m, " STRIDE: %08x\n", error->plane[i].stride);
seq_printf(m, " SIZE: %08x\n", error->plane[i].size);
if (INTEL_INFO(dev)->gen <= 3)
seq_printf(m, " SIZE: %08x\n", error->plane[i].size);
seq_printf(m, " POS: %08x\n", error->plane[i].pos);
seq_printf(m, " ADDR: %08x\n", error->plane[i].addr);
if (INTEL_INFO(dev)->gen >= 4) {