From: Paulo Zanoni Date: Wed, 6 Mar 2013 23:03:13 +0000 (-0300) Subject: drm/i915: there's no DSPSIZE register on gen4+ X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=51889b35224cb05b5a9d187f3ebf872653ae06d2;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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 Reviewed-by: Ben Widawsky Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 1dc6c18f3970..1e706769de66 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -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) {