Hi James, On Tuesday, 13 August 2019 05:56:19 BST james qian wang (Arm Technology China) wrote: > - D71 has 3 global layer gamma table which can be used for all layers as > gamma lookup table, no matter inverse or forward. > - Add komeda_color_manager/state to layer/layer_state for describe the > color caps for the specific layer which will be initialized in > d71_layer_init, and for D71 only layer with L_INFO_CM (color mgmt) bit > can support forward gamma, and CSC. > - Update komeda-CORE code to validate and convert the plane color state to > komeda_color_state. > - Enable plane color mgmt according to layer komeda_color_manager > > This patch depends on: > - https://patchwork.freedesktop.org/series/30876/ > > Signed-off-by: James Qian Wang (Arm Technology China) > <[email protected]> > --- > .../arm/display/komeda/d71/d71_component.c | 64 +++++++++++++++++++ > .../gpu/drm/arm/display/komeda/d71/d71_dev.c | 5 +- > .../gpu/drm/arm/display/komeda/d71/d71_dev.h | 2 + > .../drm/arm/display/komeda/komeda_pipeline.h | 4 +- > .../display/komeda/komeda_pipeline_state.c | 53 ++++++++++++++- > .../gpu/drm/arm/display/komeda/komeda_plane.c | 12 ++++ > .../arm/display/komeda/komeda_private_obj.c | 4 ++ > 7 files changed, 139 insertions(+), 5 deletions(-) > > diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c > b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c > index 55a8cc94808a..c9c40a36e4d2 100644 > --- a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c > +++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c > @@ -189,6 +189,46 @@ static void d71_layer_update_fb(struct komeda_component > *c, > malidp_write32(reg, LAYER_FMT, kfb->format_caps->hw_id); > } > > +static u32 d71_layer_update_color(struct drm_plane_state *st, > + u32 __iomem *reg, > + struct komeda_color_state *color_st, > + u32 *mask) > +{ > + struct komeda_coeffs_table *igamma = color_st->igamma; > + struct komeda_coeffs_table *fgamma = color_st->fgamma; > + u32 ctrl = 0, v = 0; > + > + if (!st->color_mgmt_changed) > + return 0; > + > + *mask |= L_IT | L_R2R | L_FT; > + > + if (igamma) { > + komeda_coeffs_update(igamma); > + ctrl |= L_IT; > + v = L_ITSEL(igamma->hw_id); > + } > + > + if (st->ctm) { > + u32 ctm_coeffs[KOMEDA_N_CTM_COEFFS]; > + > + drm_ctm_to_coeffs(st->ctm, ctm_coeffs); > + malidp_write_group(reg, LAYER_RGB_RGB_COEFF0, > + ARRAY_SIZE(ctm_coeffs), > + ctm_coeffs); > + ctrl |= L_R2R; /* enable RGB2RGB conversion */ > + } > + > + if (fgamma) { > + komeda_coeffs_update(fgamma); > + ctrl |= L_FT; > + v |= L_FTSEL(fgamma->hw_id); > + } > + > + malidp_write32(reg, LAYER_LT_COEFFTAB, v); > + return ctrl; > +} > + > static void d71_layer_disable(struct komeda_component *c) > { > malidp_write32_mask(c->reg, BLK_CONTROL, L_EN, 0); > @@ -261,6 +301,8 @@ static void d71_layer_update(struct komeda_component *c, > > malidp_write32(reg, BLK_IN_SIZE, HV_SIZE(st->hsize, st->vsize)); > > + ctrl |= d71_layer_update_color(plane_st, reg, &st->color_st, > &ctrl_mask); > + > if (kfb->is_va) > ctrl |= L_TBU_EN; > malidp_write32_mask(reg, BLK_CONTROL, ctrl_mask, ctrl); > @@ -365,6 +407,12 @@ static int d71_layer_init(struct d71_dev *d71, > else > layer->layer_type = KOMEDA_FMT_SIMPLE_LAYER; > > + layer->color_mgr.igamma_mgr = d71->glb_lt_mgr; > + if (layer_info & L_INFO_CM) { > + layer->color_mgr.has_ctm = true; > + layer->color_mgr.fgamma_mgr = d71->glb_lt_mgr; > + } > + > set_range(&layer->hsize_in, 4, d71->max_line_size); > set_range(&layer->vsize_in, 4, d71->max_vsize); > > @@ -1140,6 +1188,21 @@ static int d71_timing_ctrlr_init(struct d71_dev *d71, > return 0; > } > > +static void d71_gamma_update(struct komeda_coeffs_table *table) > +{ > + malidp_write_group(table->reg, GLB_LT_COEFF_DATA, > + GLB_LT_COEFF_NUM, table->coeffs); > +} > + > +static int d71_lt_coeff_init(struct d71_dev *d71, > + struct block_header *blk, u32 __iomem *reg) > +{ > + struct komeda_coeffs_manager *mgr = d71->glb_lt_mgr; > + int hw_id = BLOCK_INFO_TYPE_ID(blk->block_info); > + > + return komeda_coeffs_add(mgr, hw_id, reg, d71_gamma_update); > +} > + > int d71_probe_block(struct d71_dev *d71, > struct block_header *blk, u32 __iomem *reg) > { > @@ -1202,6 +1265,7 @@ int d71_probe_block(struct d71_dev *d71, > break; > > case D71_BLK_TYPE_GLB_LT_COEFF: > + err = d71_lt_coeff_init(d71, blk, reg); > break; > > case D71_BLK_TYPE_GLB_SCL_COEFF: > diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c > b/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c > index d567ab7ed314..edd5d7c7f2a2 100644 > --- a/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c > +++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c > @@ -341,7 +341,7 @@ static int d71_enum_resources(struct komeda_dev *mdev) > struct komeda_pipeline *pipe; > struct block_header blk; > u32 __iomem *blk_base; > - u32 i, value, offset; > + u32 i, value, offset, coeffs_size; > int err; > > d71 = devm_kzalloc(mdev->dev, sizeof(*d71), GFP_KERNEL); > @@ -398,6 +398,9 @@ static int d71_enum_resources(struct komeda_dev *mdev) > d71->pipes[i] = to_d71_pipeline(pipe); > } > > + coeffs_size = GLB_LT_COEFF_NUM * sizeof(u32); > + d71->glb_lt_mgr = komeda_coeffs_create_manager(coeffs_size); > + > /* loop the register blks and probe */ > i = 2; /* exclude GCU and PERIPH */ > offset = D71_BLOCK_SIZE; /* skip GCU */ > diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.h > b/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.h > index 84f1878b647d..009c164a1584 100644 > --- a/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.h > +++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.h > @@ -39,6 +39,8 @@ struct d71_dev { > u32 __iomem *periph_addr; > > struct d71_pipeline *pipes[D71_MAX_PIPELINE]; > + /* global layer transform coefficient table manager */ > + struct komeda_coeffs_manager *glb_lt_mgr; > }; > > #define to_d71_pipeline(x) container_of(x, struct d71_pipeline, base) > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h > b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h > index a7a84e66549d..4104c81e5032 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h > @@ -10,6 +10,7 @@ > #include <linux/types.h> > #include <drm/drm_atomic.h> > #include <drm/drm_atomic_helper.h> > +#include "komeda_color_mgmt.h" > #include "malidp_utils.h" > > #define KOMEDA_MAX_PIPELINES 2 > @@ -226,6 +227,7 @@ struct komeda_layer { > struct komeda_component base; > /* accepted h/v input range before rotation */ > struct malidp_range hsize_in, vsize_in; > + struct komeda_color_manager color_mgr; > u32 layer_type; /* RICH, SIMPLE or WB */ > u32 supported_rots; > /* komeda supports layer split which splits a whole image to two parts > @@ -238,7 +240,7 @@ struct komeda_layer { > > struct komeda_layer_state { > struct komeda_component_state base; > - /* layer specific configuration state */ > + struct komeda_color_state color_st; > u16 hsize, vsize; > u32 rot; > u16 afbc_crop_l; > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c > b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c > index ea26bc9c2d00..803715c1128e 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c > @@ -95,6 +95,21 @@ komeda_pipeline_get_state_and_set_crtc(struct > komeda_pipeline *pipe, > return st; > } > > +static bool komeda_component_is_new_active(struct komeda_component *c, > + struct drm_atomic_state *state) > +{ > + struct komeda_pipeline_state *ppl_old_st; > + > + ppl_old_st = komeda_pipeline_get_old_state(c->pipeline, state); > + if (IS_ERR(ppl_old_st)) > + return true; > + > + if (has_bit(c->id, ppl_old_st->active_comps)) > + return false; > + > + return true; > +} > + > static struct komeda_component_state * > komeda_component_get_state(struct komeda_component *c, > struct drm_atomic_state *state) > @@ -279,6 +294,29 @@ komeda_rotate_data_flow(struct komeda_data_flow_cfg > *dflow, u32 rot) > } > } > > +static int > +komeda_validate_plane_color(struct komeda_component *c, > + struct komeda_color_manager *color_mgr, > + struct komeda_color_state *color_st, > + struct drm_plane_state *plane_st) > +{ > + int err; > + > + if (komeda_component_is_new_active(c, plane_st->state)) > + plane_st->color_mgmt_changed = true; > + > + if (!plane_st->color_mgmt_changed) > + return 0; > + > + err = komeda_color_validate(color_mgr, color_st, > + plane_st->degamma_lut, > + plane_st->gamma_lut); > + if (err) > + DRM_DEBUG_ATOMIC("%s validate color failed.\n", c->name); > + > + return err; > +} > + > static int > komeda_layer_check_cfg(struct komeda_layer *layer, > struct komeda_fb *kfb, > @@ -362,6 +400,11 @@ komeda_layer_validate(struct komeda_layer *layer, > st->addr[i] = komeda_fb_get_pixel_addr(kfb, dflow->in_x, > dflow->in_y, i); > > + err = komeda_validate_plane_color(&layer->base, &layer->color_mgr, > + &st->color_st, plane_st); > + if (err) > + return err; > + > err = komeda_component_validate_private(&layer->base, c_st); > if (err) > return err; > @@ -1177,7 +1220,7 @@ komeda_pipeline_unbound_components(struct > komeda_pipeline *pipe, > { > struct drm_atomic_state *drm_st = new->obj.state; > struct komeda_pipeline_state *old = priv_to_pipe_st(pipe->obj.state); > - struct komeda_component_state *c_st; > + struct komeda_component_state *st; > struct komeda_component *c; > u32 disabling_comps, id; > > @@ -1188,9 +1231,13 @@ komeda_pipeline_unbound_components(struct > komeda_pipeline *pipe, > /* unbound all disabling component */ > dp_for_each_set_bit(id, disabling_comps) { > c = komeda_pipeline_get_component(pipe, id); > - c_st = komeda_component_get_state_and_set_user(c, > + st = komeda_component_get_state_and_set_user(c, > drm_st, NULL, new->crtc); > - WARN_ON(IS_ERR(c_st)); > + > + WARN_ON(IS_ERR(st)); I think this needs to be: if (WARN_ON(IS_ERR(st))) continue; ...because... > + > + if (has_bit(id, KOMEDA_PIPELINE_LAYERS)) > + komeda_color_cleanup_state(&to_layer_st(st)->color_st); ... this may deref an invalid `st' otherwise. > } > } > > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c > b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c > index 98e915e325dd..69fa1dea41c9 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c > @@ -11,6 +11,7 @@ > #include "komeda_dev.h" > #include "komeda_kms.h" > #include "komeda_framebuffer.h" > +#include "komeda_color_mgmt.h" > > static int > komeda_plane_init_data_flow(struct drm_plane_state *st, > @@ -250,6 +251,7 @@ static int komeda_plane_add(struct komeda_kms_dev *kms, > { > struct komeda_dev *mdev = kms->base.dev_private; > struct komeda_component *c = &layer->base; > + struct komeda_color_manager *color_mgr; > struct komeda_plane *kplane; > struct drm_plane *plane; > u32 *formats, n_formats = 0; > @@ -306,6 +308,16 @@ static int komeda_plane_add(struct komeda_kms_dev *kms, > if (err) > goto cleanup; > > + err = drm_plane_color_create_prop(plane->dev, plane); > + if (err) > + goto cleanup; > + > + color_mgr = &layer->color_mgr; > + drm_plane_enable_color_mgmt(plane, > + color_mgr->igamma_mgr ? KOMEDA_COLOR_LUT_SIZE : 0, > + color_mgr->has_ctm, > + color_mgr->fgamma_mgr ? KOMEDA_COLOR_LUT_SIZE : 0); > + > err = drm_plane_create_zpos_property(plane, layer->base.id, 0, 8); > if (err) > goto cleanup; > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c > b/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c > index 914400c4af73..4c474663f554 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c > @@ -19,12 +19,15 @@ komeda_component_state_reset(struct > komeda_component_state *st) > static struct drm_private_state * > komeda_layer_atomic_duplicate_state(struct drm_private_obj *obj) > { > + struct komeda_layer_state *old = > to_layer_st(priv_to_comp_st(obj->state)); > struct komeda_layer_state *st; > > st = kmemdup(obj->state, sizeof(*st), GFP_KERNEL); > if (!st) > return NULL; > > + komeda_color_duplicate_state(&st->color_st, &old->color_st); > + > komeda_component_state_reset(&st->base); > __drm_atomic_helper_private_obj_duplicate_state(obj, &st->base.obj); > > @@ -37,6 +40,7 @@ komeda_layer_atomic_destroy_state(struct drm_private_obj > *obj, > { > struct komeda_layer_state *st = to_layer_st(priv_to_comp_st(state)); > > + komeda_color_cleanup_state(&st->color_st); > kfree(st); > } > >
BR, Mihail
