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drm/i915: Stop reporting error details in dmesg as well as the error-state 

As we already capture all the information from the registers into the
error-state, also dumping that to dmesg just generates noise that upsets
CI and users alike (and doesn't provide us with any more information).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20161019125203.28851-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
This commit is contained in:
Chris Wilson 2016-10-19 13:52:03 +01:00
parent faccd9941b
commit eaa14c2486
1 changed files with 11 additions and 75 deletions
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86
drivers/gpu/drm/i915/i915_irq.c
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@ -2578,90 +2578,26 @@ i915_err_print_instdone(struct drm_i915_private *dev_priv,
slice, subslice, instdone->row[slice][subslice]);
}
static void i915_report_and_clear_eir(struct drm_i915_private *dev_priv)
static void i915_clear_error_registers(struct drm_i915_private *dev_priv)
{
struct intel_instdone instdone;
u32 eir = I915_READ(EIR);
int pipe;
u32 eir;
if (!eir)
return;
if (!IS_GEN2(dev_priv))
I915_WRITE(PGTBL_ER, I915_READ(PGTBL_ER));
pr_err("render error detected, EIR: 0x%08x\n", eir);
if (INTEL_GEN(dev_priv) < 4)
I915_WRITE(IPEIR, I915_READ(IPEIR));
else
I915_WRITE(IPEIR_I965, I915_READ(IPEIR_I965));
intel_engine_get_instdone(dev_priv->engine[RCS], &instdone);
if (IS_G4X(dev_priv)) {
if (eir & (GM45_ERROR_MEM_PRIV | GM45_ERROR_CP_PRIV)) {
u32 ipeir = I915_READ(IPEIR_I965);
pr_err(" IPEIR: 0x%08x\n", I915_READ(IPEIR_I965));
pr_err(" IPEHR: 0x%08x\n", I915_READ(IPEHR_I965));
i915_err_print_instdone(dev_priv, &instdone);
pr_err(" INSTPS: 0x%08x\n", I915_READ(INSTPS));
pr_err(" ACTHD: 0x%08x\n", I915_READ(ACTHD_I965));
I915_WRITE(IPEIR_I965, ipeir);
POSTING_READ(IPEIR_I965);
}
if (eir & GM45_ERROR_PAGE_TABLE) {
u32 pgtbl_err = I915_READ(PGTBL_ER);
pr_err("page table error\n");
pr_err(" PGTBL_ER: 0x%08x\n", pgtbl_err);
I915_WRITE(PGTBL_ER, pgtbl_err);
POSTING_READ(PGTBL_ER);
}
}
if (!IS_GEN2(dev_priv)) {
if (eir & I915_ERROR_PAGE_TABLE) {
u32 pgtbl_err = I915_READ(PGTBL_ER);
pr_err("page table error\n");
pr_err(" PGTBL_ER: 0x%08x\n", pgtbl_err);
I915_WRITE(PGTBL_ER, pgtbl_err);
POSTING_READ(PGTBL_ER);
}
}
if (eir & I915_ERROR_MEMORY_REFRESH) {
pr_err("memory refresh error:\n");
for_each_pipe(dev_priv, pipe)
pr_err("pipe %c stat: 0x%08x\n",
pipe_name(pipe), I915_READ(PIPESTAT(pipe)));
/* pipestat has already been acked */
}
if (eir & I915_ERROR_INSTRUCTION) {
pr_err("instruction error\n");
pr_err(" INSTPM: 0x%08x\n", I915_READ(INSTPM));
i915_err_print_instdone(dev_priv, &instdone);
if (INTEL_GEN(dev_priv) < 4) {
u32 ipeir = I915_READ(IPEIR);
pr_err(" IPEIR: 0x%08x\n", I915_READ(IPEIR));
pr_err(" IPEHR: 0x%08x\n", I915_READ(IPEHR));
pr_err(" ACTHD: 0x%08x\n", I915_READ(ACTHD));
I915_WRITE(IPEIR, ipeir);
POSTING_READ(IPEIR);
} else {
u32 ipeir = I915_READ(IPEIR_I965);
pr_err(" IPEIR: 0x%08x\n", I915_READ(IPEIR_I965));
pr_err(" IPEHR: 0x%08x\n", I915_READ(IPEHR_I965));
pr_err(" INSTPS: 0x%08x\n", I915_READ(INSTPS));
pr_err(" ACTHD: 0x%08x\n", I915_READ(ACTHD_I965));
I915_WRITE(IPEIR_I965, ipeir);
POSTING_READ(IPEIR_I965);
}
}
I915_WRITE(EIR, eir);
POSTING_READ(EIR);
I915_WRITE(EIR, I915_READ(EIR));
eir = I915_READ(EIR);
if (eir) {
/*
* some errors might have become stuck,
* mask them.
*/
DRM_ERROR("EIR stuck: 0x%08x, masking\n", eir);
DRM_DEBUG_DRIVER("EIR stuck: 0x%08x, masking\n", eir);
I915_WRITE(EMR, I915_READ(EMR) | eir);
I915_WRITE(IIR, I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT);
}
@ -2690,7 +2626,7 @@ void i915_handle_error(struct drm_i915_private *dev_priv,
va_end(args);
i915_capture_error_state(dev_priv, engine_mask, error_msg);
i915_report_and_clear_eir(dev_priv);
i915_clear_error_registers(dev_priv);
if (!engine_mask)
return;