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Tue, 22 Jan 2019 11:06:12 +0000 From: "james qian wang (Arm Technology China)" To: Liviu Dudau , "airlied@linux.ie" , Brian Starkey , "maarten.lankhorst@linux.intel.com" , "sean@poorly.run" CC: "Jonathan Chai (Arm Technology China)" , "Julien Yin (Arm Technology China)" , "thomas Sun (Arm Technology China)" , "Lowry Li (Arm Technology China)" , Ayan Halder , "Tiannan Zhu (Arm Technology China)" , "Jin Gao (Arm Technology China)" , "Yiqi Kang (Arm Technology China)" , nd , "malidp@foss.arm.com" , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , "james qian wang (Arm Technology China)" Subject: [PATCH v2 4/5] drm/komeda: Add komeda_build_layer_data_flow Thread-Topic: [PATCH v2 4/5] drm/komeda: Add komeda_build_layer_data_flow Thread-Index: AQHUskJ8pn6r/k6jA0axmHJlDcj+hQ== Date: Tue, 22 Jan 2019 11:06:12 +0000 Message-ID: <20190122110431.5025-5-james.qian.wang@arm.com> References: <20190122110431.5025-1-james.qian.wang@arm.com> In-Reply-To: <20190122110431.5025-1-james.qian.wang@arm.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [113.29.88.7] x-clientproxiedby: SYAPR01CA0021.ausprd01.prod.outlook.com (2603:10c6:1::33) To DB6PR0801MB1990.eurprd08.prod.outlook.com (2603:10a6:4:6c::21) authentication-results: spf=none (sender IP is ) smtp.mailfrom=james.qian.wang@arm.com; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-Network-Message-Id: 25e0f2fb-0b68-4883-433f-08d680599e50 X-MS-Exchange-CrossTenant-originalarrivaltime: 22 Jan 2019 11:06:02.1320 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB6PR0801MB1989 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "james qian wang (Arm Technology China)" build_layer_data_flow builds a input pipeline according to plane_state. and in this initial stage only added this simplest pipeline usage: Layer -> compiz The scaler and layer_split will be added in the future. v2: - Rebase. - Introduce struct komeda_data_flow_cfg - Add a function komeda_component_validate_private to replace the MACRO component_validate_private Signed-off-by: James Qian Wang (Arm Technology China) --- .../drm/arm/display/komeda/komeda_pipeline.h | 24 ++ .../display/komeda/komeda_pipeline_state.c | 266 +++++++++++++++++- 2 files changed, 289 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h b/drivers= /gpu/drm/arm/display/komeda/komeda_pipeline.h index c30a790d0712..16d7ae891e81 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h @@ -278,6 +278,22 @@ struct komeda_timing_ctrlr_state { struct komeda_component_state base; }; =20 +/* Why define A separated structure but not use plane_state directly ? + * 1. Komeda supports layer_split which means a plane_state can be split a= nd + * handled by two layers, one layer only handle half of plane image. + * 2. Fix up the user properties according to HW's capabilities, like user + * set rotation to R180, but HW only supports REFLECT_X+Y. the rot here= is + * after drm_rotation_simplify() + */ +struct komeda_data_flow_cfg { + struct komeda_component_output input; + u16 in_x, in_y, in_w, in_h; + u32 out_x, out_y, out_w, out_h; + u32 rot; + int blending_zorder; + u8 pixel_blend_mode, layer_alpha; +}; + /** struct komeda_pipeline_funcs */ struct komeda_pipeline_funcs { /* dump_register: Optional, dump registers to seq_file */ @@ -382,4 +398,12 @@ komeda_component_add(struct komeda_pipeline *pipe, void komeda_component_destroy(struct komeda_dev *mdev, struct komeda_component *c); =20 +struct komeda_plane_state; +struct komeda_crtc_state; + +int komeda_build_layer_data_flow(struct komeda_layer *layer, + struct komeda_plane_state *kplane_st, + struct komeda_crtc_state *kcrtc_st, + struct komeda_data_flow_cfg *dflow); + #endif /* _KOMEDA_PIPELINE_H_*/ diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c b/d= rivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c index 7ebab4fae567..74d25e542103 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c @@ -8,6 +8,7 @@ #include "komeda_dev.h" #include "komeda_kms.h" #include "komeda_pipeline.h" +#include "komeda_framebuffer.h" =20 static inline bool is_switching_user(void *old, void *new) { @@ -83,6 +84,18 @@ komeda_component_get_state(struct komeda_component *c, return priv_to_comp_st(priv_st); } =20 +static struct komeda_component_state * +komeda_component_get_old_state(struct komeda_component *c, + struct drm_atomic_state *state) +{ + struct drm_private_state *priv_st; + + priv_st =3D drm_atomic_get_old_private_obj_state(state, &c->obj); + if (priv_st) + return priv_to_comp_st(priv_st); + return NULL; +} + /** * komeda_component_get_state_and_set_user() * @@ -108,7 +121,7 @@ komeda_component_get_state(struct komeda_component *c, * CRTC. if the pipeline is busy (assigned to another CRTC), even the requ= ired * component is free, the component still cannot be assigned to the direct= user. */ -struct komeda_component_state * +static struct komeda_component_state * komeda_component_get_state_and_set_user(struct komeda_component *c, struct drm_atomic_state *state, void *user, @@ -140,3 +153,254 @@ komeda_component_get_state_and_set_user(struct komeda= _component *c, =20 return st; } + +static void +komeda_component_add_input(struct komeda_component_state *state, + struct komeda_component_output *input, + int idx) +{ + struct komeda_component *c =3D state->component; + + WARN_ON((idx < 0 || idx >=3D c->max_active_inputs)); + + /* since the inputs[i] is only valid when it is active. So if a input[i] + * is a newly enabled input which switches from disable to enable, then + * the old inputs[i] is undefined (NOT zeroed), we can not rely on + * memcmp, but directly mark it changed + */ + if (!has_bit(idx, state->affected_inputs) || + memcmp(&state->inputs[idx], input, sizeof(*input))) { + memcpy(&state->inputs[idx], input, sizeof(*input)); + state->changed_active_inputs |=3D BIT(idx); + } + state->active_inputs |=3D BIT(idx); + state->affected_inputs |=3D BIT(idx); +} + +static int +komeda_component_check_input(struct komeda_component_state *state, + struct komeda_component_output *input, + int idx) +{ + struct komeda_component *c =3D state->component; + + if ((idx < 0) || (idx >=3D c->max_active_inputs)) { + DRM_DEBUG_ATOMIC("%s invalid input id: %d.\n", c->name, idx); + return -EINVAL; + } + + if (has_bit(idx, state->active_inputs)) { + DRM_DEBUG_ATOMIC("%s required input_id: %d has been occupied already.\n"= , + c->name, idx); + return -EINVAL; + } + + return 0; +} + +static void +komeda_component_set_output(struct komeda_component_output *output, + struct komeda_component *comp, + u8 output_port) +{ + output->component =3D comp; + output->output_port =3D output_port; +} + +static int +komeda_component_validate_private(struct komeda_component *c, + struct komeda_component_state *st) +{ + int err; + + if (!c->funcs->validate) + return 0; + + err =3D c->funcs->validate(c, st); + if (err) + DRM_DEBUG_ATOMIC("%s validate private failed.\n", c->name); + + return err; +} + +static int +komeda_layer_check_cfg(struct komeda_layer *layer, + struct komeda_plane_state *kplane_st, + struct komeda_data_flow_cfg *dflow) +{ + if (!in_range(&layer->hsize_in, dflow->in_w)) { + DRM_DEBUG_ATOMIC("src_w: %d is out of range.\n", dflow->in_w); + return -EINVAL; + } + + if (!in_range(&layer->vsize_in, dflow->in_h)) { + DRM_DEBUG_ATOMIC("src_h: %d is out of range.\n", dflow->in_h); + return -EINVAL; + } + + return 0; +} + +static int +komeda_layer_validate(struct komeda_layer *layer, + struct komeda_plane_state *kplane_st, + struct komeda_data_flow_cfg *dflow) +{ + struct drm_plane_state *plane_st =3D &kplane_st->base; + struct drm_framebuffer *fb =3D plane_st->fb; + struct komeda_fb *kfb =3D to_kfb(fb); + struct komeda_component_state *c_st; + struct komeda_layer_state *st; + int i, err; + + err =3D komeda_layer_check_cfg(layer, kplane_st, dflow); + if (err) + return err; + + c_st =3D komeda_component_get_state_and_set_user(&layer->base, + plane_st->state, plane_st->plane, plane_st->crtc); + if (IS_ERR(c_st)) + return PTR_ERR(c_st); + + st =3D to_layer_st(c_st); + + st->rot =3D dflow->rot; + st->hsize =3D kfb->aligned_w; + st->vsize =3D kfb->aligned_h; + + for (i =3D 0; i < fb->format->num_planes; i++) + st->addr[i] =3D komeda_fb_get_pixel_addr(kfb, dflow->in_x, + dflow->in_y, i); + + err =3D komeda_component_validate_private(&layer->base, c_st); + if (err) + return err; + + /* update the data flow for the next stage */ + komeda_component_set_output(&dflow->input, &layer->base, 0); + + return 0; +} + +static void pipeline_composition_size(struct komeda_crtc_state *kcrtc_st, + u16 *hsize, u16 *vsize) +{ + struct drm_display_mode *m =3D &kcrtc_st->base.adjusted_mode; + + if (hsize) + *hsize =3D m->hdisplay; + if (vsize) + *vsize =3D m->vdisplay; +} + +static int +komeda_compiz_set_input(struct komeda_compiz *compiz, + struct komeda_crtc_state *kcrtc_st, + struct komeda_data_flow_cfg *dflow) +{ + struct drm_atomic_state *drm_st =3D kcrtc_st->base.state; + struct komeda_component_state *c_st, *old_st; + struct komeda_compiz_input_cfg *cin; + u16 compiz_w, compiz_h; + int idx =3D dflow->blending_zorder; + + pipeline_composition_size(kcrtc_st, &compiz_w, &compiz_h); + /* check display rect */ + if ((dflow->out_x + dflow->out_w > compiz_w) || + (dflow->out_y + dflow->out_h > compiz_h) || + dflow->out_w =3D=3D 0 || dflow->out_h =3D=3D 0) { + DRM_DEBUG_ATOMIC("invalid disp rect [x=3D%d, y=3D%d, w=3D%d, h=3D%d]\n", + dflow->out_x, dflow->out_y, + dflow->out_w, dflow->out_h); + return -EINVAL; + } + + c_st =3D komeda_component_get_state_and_set_user(&compiz->base, drm_st, + kcrtc_st->base.crtc, kcrtc_st->base.crtc); + if (IS_ERR(c_st)) + return PTR_ERR(c_st); + + if (komeda_component_check_input(c_st, &dflow->input, idx)) + return -EINVAL; + + cin =3D &(to_compiz_st(c_st)->cins[idx]); + + cin->hsize =3D dflow->out_w; + cin->vsize =3D dflow->out_h; + cin->hoffset =3D dflow->out_x; + cin->voffset =3D dflow->out_y; + cin->pixel_blend_mode =3D dflow->pixel_blend_mode; + cin->layer_alpha =3D dflow->layer_alpha; + + old_st =3D komeda_component_get_old_state(&compiz->base, drm_st); + WARN_ON(!old_st); + + /* compare with old to check if this input has been changed */ + if (memcmp(&(to_compiz_st(old_st)->cins[idx]), cin, sizeof(*cin))) + c_st->changed_active_inputs |=3D BIT(idx); + + komeda_component_add_input(c_st, &dflow->input, idx); + + return 0; +} + +int +komeda_compiz_validate(struct komeda_compiz *compiz, + struct komeda_crtc_state *state, + struct komeda_data_flow_cfg *dflow) +{ + struct komeda_component_state *c_st; + struct komeda_compiz_state *st; + + c_st =3D komeda_component_get_state_and_set_user(&compiz->base, + state->base.state, state->base.crtc, state->base.crtc); + if (IS_ERR(c_st)) + return PTR_ERR(c_st); + + st =3D to_compiz_st(c_st); + + pipeline_composition_size(state, &st->hsize, &st->vsize); + + komeda_component_set_output(&dflow->input, &compiz->base, 0); + + /* compiz output dflow will be fed to the next pipeline stage, prepare + * the data flow configuration for the next stage + */ + if (dflow) { + dflow->in_w =3D st->hsize; + dflow->in_h =3D st->vsize; + dflow->out_w =3D dflow->in_w; + dflow->out_h =3D dflow->in_h; + /* the output data of compiz doesn't have alpha, it only can be + * used as bottom layer when blend it with master layers + */ + dflow->pixel_blend_mode =3D DRM_MODE_BLEND_PIXEL_NONE; + dflow->layer_alpha =3D 0xFF; + dflow->blending_zorder =3D 0; + } + + return 0; +} + +int komeda_build_layer_data_flow(struct komeda_layer *layer, + struct komeda_plane_state *kplane_st, + struct komeda_crtc_state *kcrtc_st, + struct komeda_data_flow_cfg *dflow) +{ + struct drm_plane *plane =3D kplane_st->base.plane; + struct komeda_pipeline *pipe =3D layer->base.pipeline; + int err; + + DRM_DEBUG_ATOMIC("%s handling [PLANE:%d:%s]: src[x/y:%d/%d, w/h:%d/%d] di= sp[x/y:%d/%d, w/h:%d/%d]", + layer->base.name, plane->base.id, plane->name, + dflow->in_x, dflow->in_y, dflow->in_w, dflow->in_h, + dflow->out_x, dflow->out_y, dflow->out_w, dflow->out_h); + + err =3D komeda_layer_validate(layer, kplane_st, dflow); + if (err) + return err; + + err =3D komeda_compiz_set_input(pipe->compiz, kcrtc_st, dflow); + + return err; +} --=20 2.17.1