BDW has many other Display Engine interrupts and GT interrupts registers. Collecting it properly on gpu_error_state.
On debugfs all was properly listed already but besides we were also listing old DEIER and GTIER that doesn't exist on BDW anymore. This was causing unclaimed register messages: https://bugs.freedesktop.org/show_bug.cgi?id=81701 v2: Fix small issues of first version and don't read DEIER regs when pipe's power well is disabled Cc: Paulo Zanoni <[email protected]> Signed-off-by: Rodrigo Vivi <[email protected]> --- drivers/gpu/drm/i915/i915_debugfs.c | 4 ++++ drivers/gpu/drm/i915/i915_drv.h | 4 +++- drivers/gpu/drm/i915/i915_gpu_error.c | 29 +++++++++++++++++++++++++---- 3 files changed, 32 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 9e737b7..b3493d3 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -703,6 +703,10 @@ static int i915_interrupt_info(struct seq_file *m, void *data) } for_each_pipe(pipe) { + if (!intel_display_power_enabled(dev_priv, + POWER_DOMAIN_PIPE(pipe))) + continue; + seq_printf(m, "Pipe %c IMR:\t%08x\n", pipe_name(pipe), I915_READ(GEN8_DE_PIPE_IMR(pipe))); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 60227b2..d1ae952 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -317,7 +317,9 @@ struct drm_i915_error_state { u32 eir; u32 pgtbl_er; u32 ier; - u32 gtier; + u32 gtier[4]; + u32 deier[3]; + u32 de_misc_ier; u32 ccid; u32 derrmr; u32 forcewake; diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index 76c67dd..088b535 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -359,8 +359,19 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m, err_printf(m, "PCI ID: 0x%04x\n", dev->pdev->device); err_printf(m, "EIR: 0x%08x\n", error->eir); err_printf(m, "IER: 0x%08x\n", error->ier); + if (IS_BROADWELL(dev)) { + for_each_pipe(i) + err_printf(m, "DEIER pipe %c: 0x%08x\n", pipe_name(i), + error->deier[i]); + for (i = 0; i < 4; i++) + err_printf(m, "GTIER gt %d: 0x%08x\n", i, + error->gtier[i]); + err_printf(m, "DE_MISC_IER: 0x%08x\n", error->de_misc_ier); + } else { + err_printf(m, "IER: 0x%08x\n", error->ier); + } if (HAS_PCH_SPLIT(dev) || IS_VALLEYVIEW(dev)) - err_printf(m, "GTIER: 0x%08x\n", error->gtier); + err_printf(m, "GTIER: 0x%08x\n", error->gtier[0]); err_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er); err_printf(m, "FORCEWAKE: 0x%08x\n", error->forcewake); err_printf(m, "DERRMR: 0x%08x\n", error->derrmr); @@ -1093,6 +1104,7 @@ static void i915_capture_reg_state(struct drm_i915_private *dev_priv, struct drm_i915_error_state *error) { struct drm_device *dev = dev_priv->dev; + int i; /* General organization * 1. Registers specific to a single generation @@ -1104,7 +1116,7 @@ static void i915_capture_reg_state(struct drm_i915_private *dev_priv, /* 1: Registers specific to a single generation */ if (IS_VALLEYVIEW(dev)) { - error->gtier = I915_READ(GTIER); + error->gtier[0] = I915_READ(GTIER); error->ier = I915_READ(VLV_IER); error->forcewake = I915_READ(FORCEWAKE_VLV); } @@ -1138,9 +1150,18 @@ static void i915_capture_reg_state(struct drm_i915_private *dev_priv, if (HAS_HW_CONTEXTS(dev)) error->ccid = I915_READ(CCID); - if (HAS_PCH_SPLIT(dev)) { + if (IS_BROADWELL(dev)) { + for_each_pipe(i) + if (intel_display_power_enabled(dev_priv, + POWER_DOMAIN_PIPE(i))) + error->deier[i] = + I915_READ(GEN8_DE_PIPE_IER(i)); + for (i = 0; i < 4; i++) + error->gtier[i] = I915_READ(GEN8_GT_IER(i)); + error->de_misc_ier = I915_READ(GEN8_DE_MISC_IER); + } else if (HAS_PCH_SPLIT(dev)) { error->ier = I915_READ(DEIER); - error->gtier = I915_READ(GTIER); + error->gtier[0] = I915_READ(GTIER); } else if (IS_GEN2(dev)) { error->ier = I915_READ16(IER); } else { -- 1.9.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
