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drm/i915/display: Use a sub-struct for fbc operations in intel_display

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As FBC can utilize the system cache in xe3p_lpd onwards, we need
a provision to track which fbc instance is utilizing this cache.
A sub-struct at intel_display level to group all the fbc ops will
make fbc handling much easier. Introduce a fbc sub-struct and move
the fbc instance array into that.

v2: changes in commit message

Suggested-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patch.msgid.link/20251127115349.249120-2-vinod.govindapillai@intel.com
This commit is contained in:
Vinod Govindapillai 2025-11-27 13:53:47 +02:00
parent 1552691f96
commit 6cc3776b1f
4 changed files with 9 additions and 6 deletions
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2
drivers/gpu/drm/i915/display/i9xx_plane.c
View File

@ -134,7 +134,7 @@ static struct intel_fbc *i9xx_plane_fbc(struct intel_display *display,
enum i9xx_plane_id i9xx_plane)
{
if (i9xx_plane_has_fbc(display, i9xx_plane))
return display->fbc[INTEL_FBC_A];
return display->fbc.instances[INTEL_FBC_A];
else
return NULL;
}

5
drivers/gpu/drm/i915/display/intel_display_core.h
View File

@ -398,6 +398,10 @@ struct intel_display {
const struct dram_info *info;
} dram;
struct {
struct intel_fbc *instances[I915_MAX_FBCS];
} fbc;
struct {
/* list of fbdev register on this device */
struct intel_fbdev *fbdev;
@ -615,7 +619,6 @@ struct intel_display {
struct drm_dp_tunnel_mgr *dp_tunnel_mgr;
struct intel_audio audio;
struct intel_dpll_global dpll;
struct intel_fbc *fbc[I915_MAX_FBCS];
struct intel_frontbuffer_tracking fb_tracking;
struct intel_hotplug hotplug;
struct intel_opregion *opregion;

6
drivers/gpu/drm/i915/display/intel_fbc.c
View File

@ -69,7 +69,7 @@
#define for_each_intel_fbc(__display, __fbc, __fbc_id) \
for_each_fbc_id((__display), (__fbc_id)) \
for_each_if((__fbc) = (__display)->fbc[(__fbc_id)])
for_each_if((__fbc) = (__display)->fbc.instances[(__fbc_id)])
struct intel_fbc_funcs {
void (*activate)(struct intel_fbc *fbc);
@ -2255,7 +2255,7 @@ void intel_fbc_init(struct intel_display *display)
display->params.enable_fbc);
for_each_fbc_id(display, fbc_id)
display->fbc[fbc_id] = intel_fbc_create(display, fbc_id);
display->fbc.instances[fbc_id] = intel_fbc_create(display, fbc_id);
}
/**
@ -2374,7 +2374,7 @@ void intel_fbc_debugfs_register(struct intel_display *display)
{
struct intel_fbc *fbc;
fbc = display->fbc[INTEL_FBC_A];
fbc = display->fbc.instances[INTEL_FBC_A];
if (fbc)
intel_fbc_debugfs_add(fbc, display->drm->debugfs_root);
}

2
drivers/gpu/drm/i915/display/skl_universal_plane.c
View File

@ -2443,7 +2443,7 @@ static struct intel_fbc *skl_plane_fbc(struct intel_display *display,
enum intel_fbc_id fbc_id = skl_fbc_id_for_pipe(pipe);
if (skl_plane_has_fbc(display, fbc_id, plane_id))
return display->fbc[fbc_id];
return display->fbc.instances[fbc_id];
else
return NULL;
}