diff options
Diffstat (limited to '0006-drm-i915-Track-whether-an-atomic-transaction-changes.patch')
| -rw-r--r-- | 0006-drm-i915-Track-whether-an-atomic-transaction-changes.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/0006-drm-i915-Track-whether-an-atomic-transaction-changes.patch b/0006-drm-i915-Track-whether-an-atomic-transaction-changes.patch new file mode 100644 index 000000000..5a8fd0cf8 --- /dev/null +++ b/0006-drm-i915-Track-whether-an-atomic-transaction-changes.patch @@ -0,0 +1,58 @@ +From 21b8f4f57b5f37796b4aa6d24ad8b326fe68902b Mon Sep 17 00:00:00 2001 +From: Matt Roper <matthew.d.roper@intel.com> +Date: Thu, 12 May 2016 07:06:00 -0700 +Subject: [PATCH 06/17] drm/i915: Track whether an atomic transaction changes + the active CRTC's + +For the purposes of DDB re-allocation we need to know whether a +transaction changes the list of CRTC's that are active. While +state->modeset could be used for this purpose, that would be slightly +too aggressive since it would lead us to re-allocate the DDB when a +CRTC's mode changes, but not its final active state. + +Signed-off-by: Matt Roper <matthew.d.roper@intel.com> +Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> +Link: http://patchwork.freedesktop.org/patch/msgid/1463061971-19638-7-git-send-email-matthew.d.roper@intel.com +--- + drivers/gpu/drm/i915/intel_display.c | 3 +++ + drivers/gpu/drm/i915/intel_drv.h | 10 ++++++++++ + 2 files changed, 13 insertions(+) + +diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c +index 4633aec..f26d1c5 100644 +--- a/drivers/gpu/drm/i915/intel_display.c ++++ b/drivers/gpu/drm/i915/intel_display.c +@@ -13300,6 +13300,9 @@ static int intel_modeset_checks(struct drm_atomic_state *state) + intel_state->active_crtcs |= 1 << i; + else + intel_state->active_crtcs &= ~(1 << i); ++ ++ if (crtc_state->active != crtc->state->active) ++ intel_state->active_pipe_changes |= drm_crtc_mask(crtc); + } + + /* +diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h +index 9308cff..d19e83e 100644 +--- a/drivers/gpu/drm/i915/intel_drv.h ++++ b/drivers/gpu/drm/i915/intel_drv.h +@@ -291,6 +291,16 @@ struct intel_atomic_state { + + bool dpll_set, modeset; + ++ /* ++ * Does this transaction change the pipes that are active? This mask ++ * tracks which CRTC's have changed their active state at the end of ++ * the transaction (not counting the temporary disable during modesets). ++ * This mask should only be non-zero when intel_state->modeset is true, ++ * but the converse is not necessarily true; simply changing a mode may ++ * not flip the final active status of any CRTC's ++ */ ++ unsigned int active_pipe_changes; ++ + unsigned int active_crtcs; + unsigned int min_pixclk[I915_MAX_PIPES]; + +-- +2.7.4 + |