| Message ID | 20241119104521.575377-6-arun.r.murthy@intel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Display Global Histogram | expand |
On Tue, 19 Nov 2024, Arun R Murthy <arun.r.murthy@intel.com> wrote: > CRTC properties have been added for enable/disable histogram, reading > the histogram data and writing the IET data. > "HISTOGRAM_EN" is the crtc property to enable/disable the global > histogram and takes a value 0/1 accordingly. > "Histogram" is a crtc property to read the binary histogram data. > "Global IET" is a crtc property to write the IET binary LUT data. > > v2: Read the histogram blob data before sending uevent (Jani) > v3: use drm_property_replace_blob_from_id (Vandita) > Add substruct for histogram in intel_crtc_state (Jani) > v4: Rebased after addressing comments on patch 1 > v5: histogram check with old/new crtc_state (Suraj) > > Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com> > --- > drivers/gpu/drm/i915/display/intel_atomic.c | 5 + > drivers/gpu/drm/i915/display/intel_crtc.c | 168 +++++++++++++++++- > drivers/gpu/drm/i915/display/intel_crtc.h | 5 + > drivers/gpu/drm/i915/display/intel_display.c | 18 ++ > .../drm/i915/display/intel_display_types.h | 13 ++ > .../gpu/drm/i915/display/intel_histogram.c | 6 + > 6 files changed, 214 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c > index 03dc54c802d3..a0d64a20b01e 100644 > --- a/drivers/gpu/drm/i915/display/intel_atomic.c > +++ b/drivers/gpu/drm/i915/display/intel_atomic.c > @@ -246,6 +246,8 @@ intel_crtc_duplicate_state(struct drm_crtc *crtc) > > __drm_atomic_helper_crtc_duplicate_state(crtc, &crtc_state->uapi); > > + if (crtc_state->histogram.global_iet) > + drm_property_blob_get(crtc_state->histogram.global_iet); > /* copy color blobs */ > if (crtc_state->hw.degamma_lut) > drm_property_blob_get(crtc_state->hw.degamma_lut); > @@ -278,6 +280,7 @@ intel_crtc_duplicate_state(struct drm_crtc *crtc) > crtc_state->dsb_color_vblank = NULL; > crtc_state->dsb_commit = NULL; > crtc_state->use_dsb = false; > + crtc_state->histogram.histogram_enable_changed = false; > > return &crtc_state->uapi; > } > @@ -314,6 +317,8 @@ intel_crtc_destroy_state(struct drm_crtc *crtc, > drm_WARN_ON(crtc->dev, crtc_state->dsb_color_vblank); > drm_WARN_ON(crtc->dev, crtc_state->dsb_commit); > > + if (crtc_state->histogram.global_iet) > + drm_property_blob_put(crtc_state->histogram.global_iet); > __drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi); > intel_crtc_free_hw_state(crtc_state); > if (crtc_state->dp_tunnel_ref.tunnel) > diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c > index a2c528d707f4..3be81a5a789b 100644 > --- a/drivers/gpu/drm/i915/display/intel_crtc.c > +++ b/drivers/gpu/drm/i915/display/intel_crtc.c > @@ -11,6 +11,7 @@ > #include <drm/drm_plane.h> > #include <drm/drm_vblank.h> > #include <drm/drm_vblank_work.h> > +#include <drm/drm_atomic_uapi.h> > > #include "i915_vgpu.h" > #include "i9xx_plane.h" > @@ -27,6 +28,7 @@ > #include "intel_drrs.h" > #include "intel_dsi.h" > #include "intel_fifo_underrun.h" > +#include "intel_histogram.h" > #include "intel_pipe_crc.h" > #include "intel_psr.h" > #include "intel_sprite.h" > @@ -210,6 +212,7 @@ static struct intel_crtc *intel_crtc_alloc(void) > static void intel_crtc_free(struct intel_crtc *crtc) > { > intel_crtc_destroy_state(&crtc->base, crtc->base.state); > + intel_histogram_finish(crtc); > kfree(crtc); > } > > @@ -229,6 +232,66 @@ static int intel_crtc_late_register(struct drm_crtc *crtc) > return 0; > } > > +static int intel_crtc_get_property(struct drm_crtc *crtc, > + const struct drm_crtc_state *state, > + struct drm_property *property, > + uint64_t *val) > +{ > + struct drm_i915_private *i915 = to_i915(crtc->dev); Please use intel_display, you don't need i915 for anything. > + const struct intel_crtc_state *intel_crtc_state = > + to_intel_crtc_state(state); > + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); > + > + if (property == intel_crtc->histogram_en_property) { > + *val = intel_crtc_state->histogram.histogram_enable; > + } else if (property == intel_crtc->global_iet_property) { > + *val = (intel_crtc_state->histogram.global_iet) ? > + intel_crtc_state->histogram.global_iet->base.id : 0; > + } else if (property == intel_crtc->histogram_property) { > + *val = (intel_crtc_state->histogram.histogram) ? > + intel_crtc_state->histogram.histogram->base.id : 0; > + } else { > + drm_err(&i915->drm, > + "Unknown property [PROP:%d:%s]\n", > + property->base.id, property->name); > + return -EINVAL; > + } > + > + return 0; > +} > + > +static int intel_crtc_set_property(struct drm_crtc *crtc, > + struct drm_crtc_state *state, > + struct drm_property *property, > + u64 val) > +{ > + struct drm_i915_private *i915 = to_i915(crtc->dev); Ditto. > + struct intel_crtc_state *intel_crtc_state = > + to_intel_crtc_state(state); > + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); > + bool replaced = false; > + > + if (property == intel_crtc->histogram_en_property) { > + intel_crtc_state->histogram.histogram_enable = val; > + return 0; > + } > + > + if (property == intel_crtc->global_iet_property) { > + drm_property_replace_blob_from_id(crtc->dev, > + &intel_crtc_state->histogram.global_iet, > + val, > + sizeof(uint32_t) * HISTOGRAM_IET_LENGTH, > + -1, &replaced); > + if (replaced) > + intel_crtc_state->histogram.global_iet_changed = true; > + return 0; > + } > + > + drm_dbg_atomic(&i915->drm, "Unknown property [PROP:%d:%s]\n", > + property->base.id, property->name); > + return -EINVAL; > +} > + > #define INTEL_CRTC_FUNCS \ > .set_config = drm_atomic_helper_set_config, \ > .destroy = intel_crtc_destroy, \ > @@ -238,7 +301,9 @@ static int intel_crtc_late_register(struct drm_crtc *crtc) > .set_crc_source = intel_crtc_set_crc_source, \ > .verify_crc_source = intel_crtc_verify_crc_source, \ > .get_crc_sources = intel_crtc_get_crc_sources, \ > - .late_register = intel_crtc_late_register > + .late_register = intel_crtc_late_register, \ > + .atomic_set_property = intel_crtc_set_property, \ > + .atomic_get_property = intel_crtc_get_property > > static const struct drm_crtc_funcs bdw_crtc_funcs = { > INTEL_CRTC_FUNCS, > @@ -383,6 +448,10 @@ int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe) > intel_color_crtc_init(crtc); > intel_drrs_crtc_init(crtc); > intel_crtc_crc_init(crtc); > + intel_histogram_init(crtc); > + > + /* Initialize crtc properties */ > + intel_crtc_add_property(crtc); > > cpu_latency_qos_add_request(&crtc->vblank_pm_qos, PM_QOS_DEFAULT_VALUE); > > @@ -737,3 +806,100 @@ void intel_pipe_update_end(struct intel_atomic_state *state, > out: > intel_psr_unlock(new_crtc_state); > } > + > +static const struct drm_prop_enum_list histogram_enable_names[] = { > + { INTEL_HISTOGRAM_DISABLE, "Disable" }, > + { INTEL_HISTOGRAM_ENABLE, "Enable" }, > +}; > + > +/** > + * intel_attach_histogram_en_property() - add property to enable/disable histogram > + * @intel_crtc: pointer to the struct intel_crtc on which the global histogram is to > + * be enabled/disabled > + * > + * "HISTOGRAM_EN" is the crtc propety to enable/disable global histogram The old saying goes, if the code and comments disagree, both are wrong. > + */ > +void intel_attach_histogram_en_property(struct intel_crtc *intel_crtc) > +{ > + struct drm_crtc *crtc = &intel_crtc->base; > + struct drm_device *dev = crtc->dev; > + struct drm_property *prop; > + > + prop = intel_crtc->histogram_en_property; > + if (!prop) { > + prop = drm_property_create_enum(dev, 0, > + "Histogram_Enable", > + histogram_enable_names, > + ARRAY_SIZE(histogram_enable_names)); > + if (!prop) > + return; > + > + intel_crtc->histogram_en_property = prop; > + } > + > + drm_object_attach_property(&crtc->base, prop, 0); > +} > + > +/** > + * intel_attach_global_iet_property() - add property to write Image Enhancement data > + * @intel_crtc: pointer to the struct intel_crtc on which global histogram is enabled > + * > + * "Global IET" is the crtc property to write the Image Enhancement LUT binary data > + */ > +void intel_attach_global_iet_property(struct intel_crtc *intel_crtc) > +{ > + struct drm_crtc *crtc = &intel_crtc->base; > + struct drm_device *dev = crtc->dev; > + struct drm_property *prop; > + > + prop = intel_crtc->global_iet_property; > + if (!prop) { > + prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | DRM_MODE_PROP_ATOMIC, > + "Global IET", 0); > + if (!prop) > + return; > + > + intel_crtc->global_iet_property = prop; > + } > + > + drm_object_attach_property(&crtc->base, prop, 0); > +} > + > +/** > + * intel_attach_histogram_property() - crtc property to read the histogram. > + * @intel_crtc: pointer to the struct intel_crtc on which the global histogram > + * was enabled. > + * "Global Histogram" is the crtc property to read the binary histogram data. > + */ > +void intel_attach_histogram_property(struct intel_crtc *intel_crtc) > +{ > + struct drm_crtc *crtc = &intel_crtc->base; > + struct drm_device *dev = crtc->dev; > + struct drm_property *prop; > + struct drm_property_blob *blob; > + > + prop = intel_crtc->histogram_property; > + if (!prop) { > + prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | > + DRM_MODE_PROP_ATOMIC | > + DRM_MODE_PROP_IMMUTABLE, > + "Global Histogram", 0); > + if (!prop) > + return; > + > + intel_crtc->histogram_property = prop; > + } > + blob = drm_property_create_blob(dev, sizeof(uint32_t) * HISTOGRAM_BIN_COUNT, NULL); > + intel_crtc->config->histogram.histogram = blob; > + > + drm_object_attach_property(&crtc->base, prop, blob->base.id); > +} > + > +int intel_crtc_add_property(struct intel_crtc *intel_crtc) > +{ > + intel_attach_histogram_en_property(intel_crtc); > + intel_attach_histogram_property(intel_crtc); > + intel_attach_global_iet_property(intel_crtc); > + > + return 0; > +} > diff --git a/drivers/gpu/drm/i915/display/intel_crtc.h b/drivers/gpu/drm/i915/display/intel_crtc.h > index de54ae1deedf..4e0a3c43d4f8 100644 > --- a/drivers/gpu/drm/i915/display/intel_crtc.h > +++ b/drivers/gpu/drm/i915/display/intel_crtc.h > @@ -7,6 +7,7 @@ > #define _INTEL_CRTC_H_ > > #include <linux/types.h> > +#include <drm/drm_crtc.h> Do not include anything in headers unless you absolutely have to. > > enum i9xx_plane_id; > enum pipe; > @@ -59,4 +60,8 @@ void intel_wait_for_vblank_if_active(struct drm_i915_private *i915, > enum pipe pipe); > void intel_crtc_wait_for_next_vblank(struct intel_crtc *crtc); > > +int intel_crtc_add_property(struct intel_crtc *intel_crtc); > +void intel_attach_histogram_en_property(struct intel_crtc *intel_crtc); > +void intel_attach_global_iet_property(struct intel_crtc *intel_crtc); > +void intel_attach_histogram_property(struct intel_crtc *intel_crtc); Blank line missing here. > #endif > diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c > index e790a2de5b3d..0c3008a2d774 100644 > --- a/drivers/gpu/drm/i915/display/intel_display.c > +++ b/drivers/gpu/drm/i915/display/intel_display.c > @@ -93,6 +93,7 @@ > #include "intel_fifo_underrun.h" > #include "intel_frontbuffer.h" > #include "intel_hdmi.h" > +#include "intel_histogram.h" > #include "intel_hotplug.h" > #include "intel_link_bw.h" > #include "intel_lvds.h" > @@ -4607,6 +4608,10 @@ static int intel_crtc_atomic_check(struct intel_atomic_state *state, > if (ret) > return ret; > > + /* HISTOGRAM changed */ > + if (crtc_state->histogram.histogram_enable_changed) > + return intel_histogram_atomic_check(crtc); > + > return 0; > } > > @@ -6826,6 +6831,11 @@ int intel_atomic_check(struct drm_device *dev, > if (new_crtc_state->uapi.scaling_filter != > old_crtc_state->uapi.scaling_filter) > new_crtc_state->uapi.mode_changed = true; > + > + /* Histogram updates */ > + if (old_crtc_state->histogram.histogram_enable != > + new_crtc_state->histogram.histogram_enable) > + new_crtc_state->histogram.histogram_enable_changed = true; > } > > intel_vrr_check_modeset(state); > @@ -7892,6 +7902,14 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) > */ > old_crtc_state->dsb_color_vblank = fetch_and_zero(&new_crtc_state->dsb_color_vblank); > old_crtc_state->dsb_commit = fetch_and_zero(&new_crtc_state->dsb_commit); > + > + /* Re-Visit: HISTOGRAM related stuff */ What? Why? > + if (new_crtc_state->histogram.histogram_enable_changed) > + intel_histogram_update(crtc, > + new_crtc_state->histogram.histogram_enable); > + if (new_crtc_state->histogram.global_iet_changed) > + intel_histogram_set_iet_lut(crtc, > + (u32 *)new_crtc_state->histogram.global_iet->data); > } > > /* Underruns don't always raise interrupts, so check manually */ > diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h > index 351441efd10a..300e90998463 100644 > --- a/drivers/gpu/drm/i915/display/intel_display_types.h > +++ b/drivers/gpu/drm/i915/display/intel_display_types.h > @@ -1306,6 +1306,15 @@ struct intel_crtc_state { > > /* LOBF flag */ > bool has_lobf; > + > + /* Histogram data */ > + struct { > + int histogram_enable; > + struct drm_property_blob *global_iet; > + struct drm_property_blob *histogram; > + bool global_iet_changed; > + bool histogram_enable_changed; > + } histogram; > }; > > enum intel_pipe_crc_source { > @@ -1415,6 +1424,10 @@ struct intel_crtc { > struct pm_qos_request vblank_pm_qos; > > struct intel_histogram *histogram; > + /* HISTOGRAM properties */ > + struct drm_property *histogram_en_property; > + struct drm_property *global_iet_property; > + struct drm_property *histogram_property; > > #ifdef CONFIG_DEBUG_FS > struct intel_pipe_crc pipe_crc; > diff --git a/drivers/gpu/drm/i915/display/intel_histogram.c b/drivers/gpu/drm/i915/display/intel_histogram.c > index 16f29923ef10..cba65f4260cd 100644 > --- a/drivers/gpu/drm/i915/display/intel_histogram.c > +++ b/drivers/gpu/drm/i915/display/intel_histogram.c > @@ -82,6 +82,11 @@ static void intel_histogram_handle_int_work(struct work_struct *work) > intel_de_rmw(display, DPST_CTL(intel_crtc->pipe), > DPST_CTL_BIN_REG_FUNC_SEL | DPST_CTL_BIN_REG_MASK, 0); > if (intel_histogram_get_data(intel_crtc)) { > + drm_property_replace_global_blob(display->drm, > + &intel_crtc->config->histogram.histogram, > + sizeof(histogram->bin_data), > + histogram->bin_data, &intel_crtc->base.base, > + intel_crtc->histogram_property); > /* Notify user for Histogram rediness */ > if (kobject_uevent_env(&display->drm->primary->kdev->kobj, > KOBJ_CHANGE, histogram_event)) > @@ -203,6 +208,7 @@ static void intel_histogram_disable(struct intel_crtc *intel_crtc) > > cancel_delayed_work(&histogram->work); > histogram->enable = false; > + intel_crtc->config->histogram.histogram_enable = false; > } > > int intel_histogram_update(struct intel_crtc *intel_crtc, bool enable)
diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c index 03dc54c802d3..a0d64a20b01e 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.c +++ b/drivers/gpu/drm/i915/display/intel_atomic.c @@ -246,6 +246,8 @@ intel_crtc_duplicate_state(struct drm_crtc *crtc) __drm_atomic_helper_crtc_duplicate_state(crtc, &crtc_state->uapi); + if (crtc_state->histogram.global_iet) + drm_property_blob_get(crtc_state->histogram.global_iet); /* copy color blobs */ if (crtc_state->hw.degamma_lut) drm_property_blob_get(crtc_state->hw.degamma_lut); @@ -278,6 +280,7 @@ intel_crtc_duplicate_state(struct drm_crtc *crtc) crtc_state->dsb_color_vblank = NULL; crtc_state->dsb_commit = NULL; crtc_state->use_dsb = false; + crtc_state->histogram.histogram_enable_changed = false; return &crtc_state->uapi; } @@ -314,6 +317,8 @@ intel_crtc_destroy_state(struct drm_crtc *crtc, drm_WARN_ON(crtc->dev, crtc_state->dsb_color_vblank); drm_WARN_ON(crtc->dev, crtc_state->dsb_commit); + if (crtc_state->histogram.global_iet) + drm_property_blob_put(crtc_state->histogram.global_iet); __drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi); intel_crtc_free_hw_state(crtc_state); if (crtc_state->dp_tunnel_ref.tunnel) diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c index a2c528d707f4..3be81a5a789b 100644 --- a/drivers/gpu/drm/i915/display/intel_crtc.c +++ b/drivers/gpu/drm/i915/display/intel_crtc.c @@ -11,6 +11,7 @@ #include <drm/drm_plane.h> #include <drm/drm_vblank.h> #include <drm/drm_vblank_work.h> +#include <drm/drm_atomic_uapi.h> #include "i915_vgpu.h" #include "i9xx_plane.h" @@ -27,6 +28,7 @@ #include "intel_drrs.h" #include "intel_dsi.h" #include "intel_fifo_underrun.h" +#include "intel_histogram.h" #include "intel_pipe_crc.h" #include "intel_psr.h" #include "intel_sprite.h" @@ -210,6 +212,7 @@ static struct intel_crtc *intel_crtc_alloc(void) static void intel_crtc_free(struct intel_crtc *crtc) { intel_crtc_destroy_state(&crtc->base, crtc->base.state); + intel_histogram_finish(crtc); kfree(crtc); } @@ -229,6 +232,66 @@ static int intel_crtc_late_register(struct drm_crtc *crtc) return 0; } +static int intel_crtc_get_property(struct drm_crtc *crtc, + const struct drm_crtc_state *state, + struct drm_property *property, + uint64_t *val) +{ + struct drm_i915_private *i915 = to_i915(crtc->dev); + const struct intel_crtc_state *intel_crtc_state = + to_intel_crtc_state(state); + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + + if (property == intel_crtc->histogram_en_property) { + *val = intel_crtc_state->histogram.histogram_enable; + } else if (property == intel_crtc->global_iet_property) { + *val = (intel_crtc_state->histogram.global_iet) ? + intel_crtc_state->histogram.global_iet->base.id : 0; + } else if (property == intel_crtc->histogram_property) { + *val = (intel_crtc_state->histogram.histogram) ? + intel_crtc_state->histogram.histogram->base.id : 0; + } else { + drm_err(&i915->drm, + "Unknown property [PROP:%d:%s]\n", + property->base.id, property->name); + return -EINVAL; + } + + return 0; +} + +static int intel_crtc_set_property(struct drm_crtc *crtc, + struct drm_crtc_state *state, + struct drm_property *property, + u64 val) +{ + struct drm_i915_private *i915 = to_i915(crtc->dev); + struct intel_crtc_state *intel_crtc_state = + to_intel_crtc_state(state); + struct intel_crtc *intel_crtc = to_intel_crtc(crtc); + bool replaced = false; + + if (property == intel_crtc->histogram_en_property) { + intel_crtc_state->histogram.histogram_enable = val; + return 0; + } + + if (property == intel_crtc->global_iet_property) { + drm_property_replace_blob_from_id(crtc->dev, + &intel_crtc_state->histogram.global_iet, + val, + sizeof(uint32_t) * HISTOGRAM_IET_LENGTH, + -1, &replaced); + if (replaced) + intel_crtc_state->histogram.global_iet_changed = true; + return 0; + } + + drm_dbg_atomic(&i915->drm, "Unknown property [PROP:%d:%s]\n", + property->base.id, property->name); + return -EINVAL; +} + #define INTEL_CRTC_FUNCS \ .set_config = drm_atomic_helper_set_config, \ .destroy = intel_crtc_destroy, \ @@ -238,7 +301,9 @@ static int intel_crtc_late_register(struct drm_crtc *crtc) .set_crc_source = intel_crtc_set_crc_source, \ .verify_crc_source = intel_crtc_verify_crc_source, \ .get_crc_sources = intel_crtc_get_crc_sources, \ - .late_register = intel_crtc_late_register + .late_register = intel_crtc_late_register, \ + .atomic_set_property = intel_crtc_set_property, \ + .atomic_get_property = intel_crtc_get_property static const struct drm_crtc_funcs bdw_crtc_funcs = { INTEL_CRTC_FUNCS, @@ -383,6 +448,10 @@ int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe) intel_color_crtc_init(crtc); intel_drrs_crtc_init(crtc); intel_crtc_crc_init(crtc); + intel_histogram_init(crtc); + + /* Initialize crtc properties */ + intel_crtc_add_property(crtc); cpu_latency_qos_add_request(&crtc->vblank_pm_qos, PM_QOS_DEFAULT_VALUE); @@ -737,3 +806,100 @@ void intel_pipe_update_end(struct intel_atomic_state *state, out: intel_psr_unlock(new_crtc_state); } + +static const struct drm_prop_enum_list histogram_enable_names[] = { + { INTEL_HISTOGRAM_DISABLE, "Disable" }, + { INTEL_HISTOGRAM_ENABLE, "Enable" }, +}; + +/** + * intel_attach_histogram_en_property() - add property to enable/disable histogram + * @intel_crtc: pointer to the struct intel_crtc on which the global histogram is to + * be enabled/disabled + * + * "HISTOGRAM_EN" is the crtc propety to enable/disable global histogram + */ +void intel_attach_histogram_en_property(struct intel_crtc *intel_crtc) +{ + struct drm_crtc *crtc = &intel_crtc->base; + struct drm_device *dev = crtc->dev; + struct drm_property *prop; + + prop = intel_crtc->histogram_en_property; + if (!prop) { + prop = drm_property_create_enum(dev, 0, + "Histogram_Enable", + histogram_enable_names, + ARRAY_SIZE(histogram_enable_names)); + if (!prop) + return; + + intel_crtc->histogram_en_property = prop; + } + + drm_object_attach_property(&crtc->base, prop, 0); +} + +/** + * intel_attach_global_iet_property() - add property to write Image Enhancement data + * @intel_crtc: pointer to the struct intel_crtc on which global histogram is enabled + * + * "Global IET" is the crtc property to write the Image Enhancement LUT binary data + */ +void intel_attach_global_iet_property(struct intel_crtc *intel_crtc) +{ + struct drm_crtc *crtc = &intel_crtc->base; + struct drm_device *dev = crtc->dev; + struct drm_property *prop; + + prop = intel_crtc->global_iet_property; + if (!prop) { + prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | DRM_MODE_PROP_ATOMIC, + "Global IET", 0); + if (!prop) + return; + + intel_crtc->global_iet_property = prop; + } + + drm_object_attach_property(&crtc->base, prop, 0); +} + +/** + * intel_attach_histogram_property() - crtc property to read the histogram. + * @intel_crtc: pointer to the struct intel_crtc on which the global histogram + * was enabled. + * "Global Histogram" is the crtc property to read the binary histogram data. + */ +void intel_attach_histogram_property(struct intel_crtc *intel_crtc) +{ + struct drm_crtc *crtc = &intel_crtc->base; + struct drm_device *dev = crtc->dev; + struct drm_property *prop; + struct drm_property_blob *blob; + + prop = intel_crtc->histogram_property; + if (!prop) { + prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | + DRM_MODE_PROP_ATOMIC | + DRM_MODE_PROP_IMMUTABLE, + "Global Histogram", 0); + if (!prop) + return; + + intel_crtc->histogram_property = prop; + } + blob = drm_property_create_blob(dev, sizeof(uint32_t) * HISTOGRAM_BIN_COUNT, NULL); + intel_crtc->config->histogram.histogram = blob; + + drm_object_attach_property(&crtc->base, prop, blob->base.id); +} + +int intel_crtc_add_property(struct intel_crtc *intel_crtc) +{ + intel_attach_histogram_en_property(intel_crtc); + intel_attach_histogram_property(intel_crtc); + intel_attach_global_iet_property(intel_crtc); + + return 0; +} diff --git a/drivers/gpu/drm/i915/display/intel_crtc.h b/drivers/gpu/drm/i915/display/intel_crtc.h index de54ae1deedf..4e0a3c43d4f8 100644 --- a/drivers/gpu/drm/i915/display/intel_crtc.h +++ b/drivers/gpu/drm/i915/display/intel_crtc.h @@ -7,6 +7,7 @@ #define _INTEL_CRTC_H_ #include <linux/types.h> +#include <drm/drm_crtc.h> enum i9xx_plane_id; enum pipe; @@ -59,4 +60,8 @@ void intel_wait_for_vblank_if_active(struct drm_i915_private *i915, enum pipe pipe); void intel_crtc_wait_for_next_vblank(struct intel_crtc *crtc); +int intel_crtc_add_property(struct intel_crtc *intel_crtc); +void intel_attach_histogram_en_property(struct intel_crtc *intel_crtc); +void intel_attach_global_iet_property(struct intel_crtc *intel_crtc); +void intel_attach_histogram_property(struct intel_crtc *intel_crtc); #endif diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index e790a2de5b3d..0c3008a2d774 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -93,6 +93,7 @@ #include "intel_fifo_underrun.h" #include "intel_frontbuffer.h" #include "intel_hdmi.h" +#include "intel_histogram.h" #include "intel_hotplug.h" #include "intel_link_bw.h" #include "intel_lvds.h" @@ -4607,6 +4608,10 @@ static int intel_crtc_atomic_check(struct intel_atomic_state *state, if (ret) return ret; + /* HISTOGRAM changed */ + if (crtc_state->histogram.histogram_enable_changed) + return intel_histogram_atomic_check(crtc); + return 0; } @@ -6826,6 +6831,11 @@ int intel_atomic_check(struct drm_device *dev, if (new_crtc_state->uapi.scaling_filter != old_crtc_state->uapi.scaling_filter) new_crtc_state->uapi.mode_changed = true; + + /* Histogram updates */ + if (old_crtc_state->histogram.histogram_enable != + new_crtc_state->histogram.histogram_enable) + new_crtc_state->histogram.histogram_enable_changed = true; } intel_vrr_check_modeset(state); @@ -7892,6 +7902,14 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) */ old_crtc_state->dsb_color_vblank = fetch_and_zero(&new_crtc_state->dsb_color_vblank); old_crtc_state->dsb_commit = fetch_and_zero(&new_crtc_state->dsb_commit); + + /* Re-Visit: HISTOGRAM related stuff */ + if (new_crtc_state->histogram.histogram_enable_changed) + intel_histogram_update(crtc, + new_crtc_state->histogram.histogram_enable); + if (new_crtc_state->histogram.global_iet_changed) + intel_histogram_set_iet_lut(crtc, + (u32 *)new_crtc_state->histogram.global_iet->data); } /* Underruns don't always raise interrupts, so check manually */ diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 351441efd10a..300e90998463 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1306,6 +1306,15 @@ struct intel_crtc_state { /* LOBF flag */ bool has_lobf; + + /* Histogram data */ + struct { + int histogram_enable; + struct drm_property_blob *global_iet; + struct drm_property_blob *histogram; + bool global_iet_changed; + bool histogram_enable_changed; + } histogram; }; enum intel_pipe_crc_source { @@ -1415,6 +1424,10 @@ struct intel_crtc { struct pm_qos_request vblank_pm_qos; struct intel_histogram *histogram; + /* HISTOGRAM properties */ + struct drm_property *histogram_en_property; + struct drm_property *global_iet_property; + struct drm_property *histogram_property; #ifdef CONFIG_DEBUG_FS struct intel_pipe_crc pipe_crc; diff --git a/drivers/gpu/drm/i915/display/intel_histogram.c b/drivers/gpu/drm/i915/display/intel_histogram.c index 16f29923ef10..cba65f4260cd 100644 --- a/drivers/gpu/drm/i915/display/intel_histogram.c +++ b/drivers/gpu/drm/i915/display/intel_histogram.c @@ -82,6 +82,11 @@ static void intel_histogram_handle_int_work(struct work_struct *work) intel_de_rmw(display, DPST_CTL(intel_crtc->pipe), DPST_CTL_BIN_REG_FUNC_SEL | DPST_CTL_BIN_REG_MASK, 0); if (intel_histogram_get_data(intel_crtc)) { + drm_property_replace_global_blob(display->drm, + &intel_crtc->config->histogram.histogram, + sizeof(histogram->bin_data), + histogram->bin_data, &intel_crtc->base.base, + intel_crtc->histogram_property); /* Notify user for Histogram rediness */ if (kobject_uevent_env(&display->drm->primary->kdev->kobj, KOBJ_CHANGE, histogram_event)) @@ -203,6 +208,7 @@ static void intel_histogram_disable(struct intel_crtc *intel_crtc) cancel_delayed_work(&histogram->work); histogram->enable = false; + intel_crtc->config->histogram.histogram_enable = false; } int intel_histogram_update(struct intel_crtc *intel_crtc, bool enable)
CRTC properties have been added for enable/disable histogram, reading the histogram data and writing the IET data. "HISTOGRAM_EN" is the crtc property to enable/disable the global histogram and takes a value 0/1 accordingly. "Histogram" is a crtc property to read the binary histogram data. "Global IET" is a crtc property to write the IET binary LUT data. v2: Read the histogram blob data before sending uevent (Jani) v3: use drm_property_replace_blob_from_id (Vandita) Add substruct for histogram in intel_crtc_state (Jani) v4: Rebased after addressing comments on patch 1 v5: histogram check with old/new crtc_state (Suraj) Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com> --- drivers/gpu/drm/i915/display/intel_atomic.c | 5 + drivers/gpu/drm/i915/display/intel_crtc.c | 168 +++++++++++++++++- drivers/gpu/drm/i915/display/intel_crtc.h | 5 + drivers/gpu/drm/i915/display/intel_display.c | 18 ++ .../drm/i915/display/intel_display_types.h | 13 ++ .../gpu/drm/i915/display/intel_histogram.c | 6 + 6 files changed, 214 insertions(+), 1 deletion(-)