From df22d67e5f3d91ce6f0b0f64ccc14d016c89d956 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Wed, 24 Aug 2022 16:15:56 +0300 Subject: drm/i915: move INTEL_FRONTBUFFER_* macros to intel_frontbuffer.h The macros clearly don't belong in i915_drv.h. Move to intel_frontbuffer.h. Also split the BUILD_BUG_ON()s to intel_frontbuffer_track() to avoid depending on some other macros in the header. Signed-off-by: Jani Nikula Reviewed-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/c899fd1ef2220564a876cd88c03e53c4c7b0168b.1661346845.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/display/intel_frontbuffer.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers/gpu/drm/i915/display/intel_frontbuffer.h') diff --git a/drivers/gpu/drm/i915/display/intel_frontbuffer.h b/drivers/gpu/drm/i915/display/intel_frontbuffer.h index ff0c37b079aa..3c474ed937fb 100644 --- a/drivers/gpu/drm/i915/display/intel_frontbuffer.h +++ b/drivers/gpu/drm/i915/display/intel_frontbuffer.h @@ -25,6 +25,7 @@ #define __INTEL_FRONTBUFFER_H__ #include +#include #include #include "gem/i915_gem_object_types.h" @@ -48,6 +49,23 @@ struct intel_frontbuffer { struct rcu_head rcu; }; +/* + * Frontbuffer tracking bits. Set in obj->frontbuffer_bits while a gem bo is + * considered to be the frontbuffer for the given plane interface-wise. This + * doesn't mean that the hw necessarily already scans it out, but that any + * rendering (by the cpu or gpu) will land in the frontbuffer eventually. + * + * We have one bit per pipe and per scanout plane type. + */ +#define INTEL_FRONTBUFFER_BITS_PER_PIPE 8 +#define INTEL_FRONTBUFFER(pipe, plane_id) \ + BIT((plane_id) + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)); +#define INTEL_FRONTBUFFER_OVERLAY(pipe) \ + BIT(INTEL_FRONTBUFFER_BITS_PER_PIPE - 1 + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)) +#define INTEL_FRONTBUFFER_ALL_MASK(pipe) \ + GENMASK(INTEL_FRONTBUFFER_BITS_PER_PIPE * ((pipe) + 1) - 1, \ + INTEL_FRONTBUFFER_BITS_PER_PIPE * (pipe)) + void intel_frontbuffer_flip_prepare(struct drm_i915_private *i915, unsigned frontbuffer_bits); void intel_frontbuffer_flip_complete(struct drm_i915_private *i915, -- cgit v1.2.3