From dc79317c36323e61d025862fea0e30bedd2ddb41 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 14 Jul 2010 12:03:03 +0100 Subject: [PATCH] drm/i915: Capture the overlay status upon a GPU hang. Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/i915_debugfs.c | 3 + drivers/gpu/drm/i915/i915_drv.h | 10 +++- drivers/gpu/drm/i915/i915_irq.c | 3 + drivers/gpu/drm/i915/intel_overlay.c | 85 ++++++++++++++++++++++++++++++++++ 4 files changed, 99 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 070f654..53b616d 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -488,6 +488,9 @@ static int i915_error_state(struct seq_file *m, void *unused) } } + if (error->overlay) + intel_overlay_print_error_state(m, error->overlay); + out: spin_unlock_irqrestore(&dev_priv->error_lock, flags); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index cb7be20..f25cffc 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -113,6 +113,9 @@ struct intel_opregion { int enabled; }; +struct intel_overlay; +struct intel_overlay_error_state; + struct drm_i915_master_private { drm_local_map_t *sarea; struct _drm_i915_sarea *sarea_priv; @@ -166,6 +169,7 @@ struct drm_i915_error_state { u32 purgeable:1; } *active_bo; u32 active_bo_count; + struct intel_overlay_error_state *overlay; }; struct drm_i915_display_funcs { @@ -186,8 +190,6 @@ struct drm_i915_display_funcs { /* clock gating init */ }; -struct intel_overlay; - struct intel_device_info { u8 is_mobile : 1; u8 is_i8xx : 1; @@ -1062,6 +1064,10 @@ extern bool ironlake_set_drps(struct drm_device *dev, u8 val); extern void intel_detect_pch (struct drm_device *dev); extern int intel_trans_dp_port_sel (struct drm_crtc *crtc); +/* overlay */ +extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev); +extern void intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error); + /** * Lock test for when it's just for synchronization of ring access. * diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 32a3917..299d8c2 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -507,6 +507,7 @@ i915_error_state_free(struct drm_device *dev, i915_error_object_free(error->batchbuffer[1]); i915_error_object_free(error->ringbuffer); kfree(error->active_bo); + kfree(error->overlay); kfree(error); } @@ -724,6 +725,8 @@ static void i915_capture_error_state(struct drm_device *dev) do_gettimeofday(&error->time); + error->overlay = intel_overlay_capture_error_state(dev); + spin_lock_irqsave(&dev_priv->error_lock, flags); if (dev_priv->first_error == NULL) { dev_priv->first_error = error; diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c index 9b555a7..d41a16c 100644 --- a/drivers/gpu/drm/i915/intel_overlay.c +++ b/drivers/gpu/drm/i915/intel_overlay.c @@ -1418,3 +1418,88 @@ void intel_cleanup_overlay(struct drm_device *dev) kfree(dev_priv->overlay); } } + +struct intel_overlay_error_state { + struct overlay_registers regs; + u32 status; +}; + +struct intel_overlay_error_state * +intel_overlay_capture_error_state(struct drm_device *dev) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + struct intel_overlay_error_state *error; + struct overlay_registers __iomem *regs; + + if (!dev_priv->overlay || !dev_priv->overlay->active) + return NULL; + + error = kmalloc(sizeof(*error), GFP_ATOMIC); + if (error == NULL) + return NULL; + + regs = intel_overlay_map_regs_atomic(dev_priv->overlay); + if (!regs) + goto err; + + memcpy_fromio(&error->regs, regs, sizeof(struct overlay_registers)); + intel_overlay_unmap_regs_atomic(dev_priv->overlay); + + error->status = I915_READ(DOVSTA); + + return error; + +err: + kfree(error); + return NULL; +} + +void +intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error) +{ + seq_printf(m, "Overlay, status: 0x%08x\n", error->status); + +#define P(x) seq_printf(m, " " #x ": 0x%08x\n", error->regs.x) + P(OBUF_0Y); + P(OBUF_1Y); + P(OBUF_0U); + P(OBUF_0V); + P(OBUF_1U); + P(OBUF_1V); + P(OSTRIDE); + P(YRGB_VPH); + P(UV_VPH); + P(HORZ_PH); + P(INIT_PHS); + P(DWINPOS); + P(DWINSZ); + P(SWIDTH); + P(SWIDTHSW); + P(SHEIGHT); + P(YRGBSCALE); + P(UVSCALE); + P(OCLRC0); + P(OCLRC1); + P(DCLRKV); + P(DCLRKM); + P(SCLRKVH); + P(SCLRKVL); + P(SCLRKEN); + P(OCONFIG); + P(OCMD); + P(OSTART_0Y); + P(OSTART_1Y); + P(OSTART_0U); + P(OSTART_0V); + P(OSTART_1U); + P(OSTART_1V); + P(OTILEOFF_0Y); + P(OTILEOFF_1Y); + P(OTILEOFF_0U); + P(OTILEOFF_0V); + P(OTILEOFF_1U); + P(OTILEOFF_1V); + P(FASTHSCALE); + P(UVSCALEV); +#undef P +} -- 1.7.1