drm/i915: extract intel_psr.h from intel_drv.h

It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

v2: Fix checkpatch whitespace complaint

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7e776690bf139ccdd0306b30df08dc68e74603de.1554461791.git.jani.nikula@intel.com

1 files changed, 40 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_psr.h b/drivers/gpu/drm/i915/intel_psr.h
new file mode 100644
index 000000000000..dc818826f36d
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_psr.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __INTEL_PSR_H__
+#define __INTEL_PSR_H__
+
+#include "intel_frontbuffer.h"
+
+struct drm_i915_private;
+struct intel_crtc_state;
+struct intel_dp;
+
+#define CAN_PSR(dev_priv) (HAS_PSR(dev_priv) && dev_priv->psr.sink_support)
+void intel_psr_init_dpcd(struct intel_dp *intel_dp);
+void intel_psr_enable(struct intel_dp *intel_dp,
+		      const struct intel_crtc_state *crtc_state);
+void intel_psr_disable(struct intel_dp *intel_dp,
+		       const struct intel_crtc_state *old_crtc_state);
+void intel_psr_update(struct intel_dp *intel_dp,
+		      const struct intel_crtc_state *crtc_state);
+int intel_psr_debug_set(struct drm_i915_private *dev_priv, u64 value);
+void intel_psr_invalidate(struct drm_i915_private *dev_priv,
+			  unsigned frontbuffer_bits,
+			  enum fb_op_origin origin);
+void intel_psr_flush(struct drm_i915_private *dev_priv,
+		     unsigned frontbuffer_bits,
+		     enum fb_op_origin origin);
+void intel_psr_init(struct drm_i915_private *dev_priv);
+void intel_psr_compute_config(struct intel_dp *intel_dp,
+			      struct intel_crtc_state *crtc_state);
+void intel_psr_irq_control(struct drm_i915_private *dev_priv, u32 debug);
+void intel_psr_irq_handler(struct drm_i915_private *dev_priv, u32 psr_iir);
+void intel_psr_short_pulse(struct intel_dp *intel_dp);
+int intel_psr_wait_for_idle(const struct intel_crtc_state *new_crtc_state,
+			    u32 *out_value);
+bool intel_psr_enabled(struct intel_dp *intel_dp);
+
+#endif /* __INTEL_PSR_H__ */