From 1f3b1fd386e6b8cde64e530a58264981e00bafa0 Mon Sep 17 00:00:00 2001 From: Sagar Arun Kamble Date: Sat, 11 Mar 2017 08:07:01 +0530 Subject: [PATCH] drm/i915/guc: Update rps.pm_intrmsk_mbz in guc_interrupts_capture/release Different state is to be maintained for rps.pm_intrmsk_mbz for GuC and Execlists. Updating it inside guc_interrupts_* routines as in those routines GuC load/submission params are sanitized and it should not be set based on HAS_GUC_SCHED during intel_irq_init. Cc: Tvrtko Ursulin Cc: Chris Wilson Cc: Oscar Mateo Cc: Radoslaw Szwichtenberg Reviewed-by: Chris Wilson Signed-off-by: Sagar Arun Kamble Link: http://patchwork.freedesktop.org/patch/msgid/1489199821-6707-3-git-send-email-sagar.a.kamble@intel.com Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/i915_guc_submission.c | 26 ++++++++++++++++++++++ drivers/gpu/drm/i915/i915_irq.c | 24 -------------------- 2 files changed, 26 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c index 01b611cdb751..ca7723fd0f79 100644 --- a/drivers/gpu/drm/i915/i915_guc_submission.c +++ b/drivers/gpu/drm/i915/i915_guc_submission.c @@ -954,6 +954,28 @@ static void guc_interrupts_capture(struct drm_i915_private *dev_priv) I915_WRITE(GUC_BCS_RCS_IER, ~irqs); I915_WRITE(GUC_VCS2_VCS1_IER, ~irqs); I915_WRITE(GUC_WD_VECS_IER, ~irqs); + + /* + * The REDIRECT_TO_GUC bit of the PMINTRMSK register directs all + * (unmasked) PM interrupts to the GuC. All other bits of this + * register *disable* generation of a specific interrupt. + * + * 'pm_intrmsk_mbz' indicates bits that are NOT to be set when + * writing to the PM interrupt mask register, i.e. interrupts + * that must not be disabled. + * + * If the GuC is handling these interrupts, then we must not let + * the PM code disable ANY interrupt that the GuC is expecting. + * So for each ENABLED (0) bit in this register, we must SET the + * bit in pm_intrmsk_mbz so that it's left enabled for the GuC. + * GuC needs ARAT expired interrupt unmasked hence it is set in + * pm_intrmsk_mbz. + * + * Here we CLEAR REDIRECT_TO_GUC bit in pm_intrmsk_mbz, which will + * result in the register bit being left SET! + */ + dev_priv->rps.pm_intrmsk_mbz |= ARAT_EXPIRED_INTRMSK; + dev_priv->rps.pm_intrmsk_mbz &= ~GEN8_PMINTR_REDIRECT_TO_GUC; } int i915_guc_submission_enable(struct drm_i915_private *dev_priv) @@ -1014,6 +1036,10 @@ static void guc_interrupts_release(struct drm_i915_private *dev_priv) I915_WRITE(GUC_BCS_RCS_IER, 0); I915_WRITE(GUC_VCS2_VCS1_IER, 0); I915_WRITE(GUC_WD_VECS_IER, 0); + + dev_priv->rps.pm_intrmsk_mbz |= GEN8_PMINTR_REDIRECT_TO_GUC; + dev_priv->rps.pm_intrmsk_mbz &= ~ARAT_EXPIRED_INTRMSK; + } void i915_guc_submission_disable(struct drm_i915_private *dev_priv) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index a6bf6199aeda..a522da712cc8 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -4284,30 +4284,6 @@ void intel_irq_init(struct drm_i915_private *dev_priv) if (INTEL_INFO(dev_priv)->gen >= 8) dev_priv->rps.pm_intrmsk_mbz |= GEN8_PMINTR_REDIRECT_TO_GUC; - /* - * The REDIRECT_TO_GUC bit of the PMINTRMSK register directs all - * (unmasked) PM interrupts to the GuC. All other bits of this - * register *disable* generation of a specific interrupt. - * - * 'pm_intrmsk_mbz' indicates bits that are NOT to be set when - * writing to the PM interrupt mask register, i.e. interrupts - * that must not be disabled. - * - * If the GuC is handling these interrupts, then we must not let - * the PM code disable ANY interrupt that the GuC is expecting. - * So for each ENABLED (0) bit in this register, we must SET the - * bit in pm_intrmsk_mbz so that it's left enabled for the GuC. - * GuC needs ARAT expired interrupt unmasked hence it is set in - * pm_intrmsk_mbz. - * - * Here we CLEAR REDIRECT_TO_GUC bit in pm_intrmsk_mbz, which will - * result in the register bit being left SET! - */ - if (HAS_GUC_SCHED(dev_priv)) { - dev_priv->rps.pm_intrmsk_mbz |= ARAT_EXPIRED_INTRMSK; - dev_priv->rps.pm_intrmsk_mbz &= ~GEN8_PMINTR_REDIRECT_TO_GUC; - } - if (IS_GEN2(dev_priv)) { /* Gen2 doesn't have a hardware frame counter */ dev->max_vblank_count = 0; -- 2.20.1