From 92bc908af5cd6633a167638c4ff432d9fe107fa7 Mon Sep 17 00:00:00 2001 From: Animesh Manna Date: Fri, 25 Mar 2022 21:41:40 +0530 Subject: drm/i915/dsb: modified to drm_info in dsb_prepare() The request to aqquire gem resources is failing for DSB in rare scenario where it is busy and the register programming will be done through mmio fallback path. DSB has extra advantage of faster register programming which may go away through mmio path. Adding wait for gem resource also may not be right as anyways losing time. To make the CI execution happy replaced drm_err() to drm_info() for printing debug info during dsb buffer preparation. v1: Initial version. v2: Added print for mmio fallback at out label. [Nirmoy] v3: Improved debug message. [Nirmoy] Cc: Nirmoy Das Signed-off-by: Animesh Manna Signed-off-by: Uma Shankar Link: https://patchwork.freedesktop.org/patch/msgid/20220325161140.11906-1-animesh.manna@intel.com Reviewed-by: Nirmoy Das --- drivers/gpu/drm/i915/display/intel_dsb.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/i915') diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c index b34a67309976..c4affcb216fd 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.c +++ b/drivers/gpu/drm/i915/display/intel_dsb.c @@ -283,14 +283,12 @@ void intel_dsb_prepare(struct intel_crtc_state *crtc_state) obj = i915_gem_object_create_internal(i915, DSB_BUF_SIZE); if (IS_ERR(obj)) { - drm_err(&i915->drm, "Gem object creation failed\n"); kfree(dsb); goto out; } vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0, 0); if (IS_ERR(vma)) { - drm_err(&i915->drm, "Vma creation failed\n"); i915_gem_object_put(obj); kfree(dsb); goto out; @@ -298,7 +296,6 @@ void intel_dsb_prepare(struct intel_crtc_state *crtc_state) buf = i915_gem_object_pin_map_unlocked(vma->obj, I915_MAP_WC); if (IS_ERR(buf)) { - drm_err(&i915->drm, "Command buffer creation failed\n"); i915_vma_unpin_and_release(&vma, I915_VMA_RELEASE_MAP); kfree(dsb); goto out; @@ -311,6 +308,10 @@ void intel_dsb_prepare(struct intel_crtc_state *crtc_state) dsb->ins_start_offset = 0; crtc_state->dsb = dsb; out: + if (!crtc_state->dsb) + drm_info(&i915->drm, + "DSB queue setup failed, will fallback to MMIO for display HW programming\n"); + intel_runtime_pm_put(&i915->runtime_pm, wakeref); } -- cgit v1.2.3-59-g8ed1b