drm/komeda: Add writeback support
Komeda driver uses a individual component to describe the HW's writeback caps, but drivers doesn't define a new structure and still uses the existing "struct komeda_layer" to describe this new component. The detailed changes as follow: 1. Initialize wb_layer according to HW and report it to CORE. 2. CORE exposes wb_layer as a resource to KMS by private_obj. 3. Report writeback supporting by add a wb_connector to KMS, and then wb_connector will take act as a component resources user, so the func komeda_wb_encoder_atomic_check claims komeda resources (scaler and wb_layer) accroding to its state configuration to the wb_connector. and the wb_state configuration will be validated on the specific component resources to see if the caps of component can meet the requirement of wb_connector. if not check failed. 4. Update irq_handler to notify the completion of writeback. NOTE: This change doesn't add scaling writeback support, that support will be added in the future after the scaler support. v2: Rebase v3: Rebase and constify the d71_wb_layer_funcs v4: Addressed Ayan's comments Depends on: - https://patchwork.freedesktop.org/series/59915/ Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com> Acked-by: Ayan Kumar Halder <ayan.halder@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
This commit is contained in:
james qian wang (Arm Technology China)
Liviu Dudau
parent
52d2d44eee
commit
5d51f6c0da
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@ -14,6 +14,7 @@ komeda-y := \
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komeda_kms.o \
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komeda_crtc.o \
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komeda_plane.o \
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komeda_wb_connector.o \
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komeda_private_obj.o
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komeda-y += \
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@ -288,10 +288,98 @@ static int d71_layer_init(struct d71_dev *d71,
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return 0;
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}
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static void d71_wb_layer_update(struct komeda_component *c,
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struct komeda_component_state *state)
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{
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struct komeda_layer_state *st = to_layer_st(state);
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struct drm_connector_state *conn_st = state->wb_conn->state;
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struct drm_framebuffer *fb = conn_st->writeback_job->fb;
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struct komeda_fb *kfb = to_kfb(fb);
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u32 __iomem *reg = c->reg;
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u32 ctrl = L_EN | LW_OFM, mask = L_EN | LW_OFM | LW_TBU_EN;
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int i;
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for (i = 0; i < fb->format->num_planes; i++) {
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malidp_write32(reg + i * LAYER_PER_PLANE_REGS, BLK_P0_PTR_LOW,
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lower_32_bits(st->addr[i]));
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malidp_write32(reg + i * LAYER_PER_PLANE_REGS, BLK_P0_PTR_HIGH,
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upper_32_bits(st->addr[i]));
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malidp_write32(reg + i * LAYER_PER_PLANE_REGS, BLK_P0_STRIDE,
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fb->pitches[i] & 0xFFFF);
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}
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malidp_write32(reg, LAYER_FMT, kfb->format_caps->hw_id);
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malidp_write32(reg, BLK_IN_SIZE, HV_SIZE(st->hsize, st->vsize));
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malidp_write32(reg, BLK_INPUT_ID0, to_d71_input_id(&state->inputs[0]));
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malidp_write32_mask(reg, BLK_CONTROL, mask, ctrl);
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}
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static void d71_wb_layer_dump(struct komeda_component *c, struct seq_file *sf)
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{
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u32 v[12], i;
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dump_block_header(sf, c->reg);
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get_values_from_reg(c->reg, 0x80, 1, v);
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seq_printf(sf, "LW_INPUT_ID0:\t\t0x%X\n", v[0]);
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get_values_from_reg(c->reg, 0xD0, 3, v);
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seq_printf(sf, "LW_CONTROL:\t\t0x%X\n", v[0]);
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seq_printf(sf, "LW_PROG_LINE:\t\t0x%X\n", v[1]);
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seq_printf(sf, "LW_FORMAT:\t\t0x%X\n", v[2]);
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get_values_from_reg(c->reg, 0xE0, 1, v);
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seq_printf(sf, "LW_IN_SIZE:\t\t0x%X\n", v[0]);
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for (i = 0; i < 2; i++) {
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get_values_from_reg(c->reg, 0x100 + i * 0x10, 3, v);
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seq_printf(sf, "LW_P%u_PTR_LOW:\t\t0x%X\n", i, v[0]);
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seq_printf(sf, "LW_P%u_PTR_HIGH:\t\t0x%X\n", i, v[1]);
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seq_printf(sf, "LW_P%u_STRIDE:\t\t0x%X\n", i, v[2]);
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}
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get_values_from_reg(c->reg, 0x130, 12, v);
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for (i = 0; i < 12; i++)
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seq_printf(sf, "LW_RGB_YUV_COEFF%u:\t0x%X\n", i, v[i]);
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}
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static void d71_wb_layer_disable(struct komeda_component *c)
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{
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malidp_write32(c->reg, BLK_INPUT_ID0, 0);
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malidp_write32_mask(c->reg, BLK_CONTROL, L_EN, 0);
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}
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static const struct komeda_component_funcs d71_wb_layer_funcs = {
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.update = d71_wb_layer_update,
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.disable = d71_wb_layer_disable,
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.dump_register = d71_wb_layer_dump,
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};
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static int d71_wb_layer_init(struct d71_dev *d71,
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struct block_header *blk, u32 __iomem *reg)
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{
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DRM_DEBUG("Detect D71_Wb_Layer.\n");
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struct komeda_component *c;
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struct komeda_layer *wb_layer;
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u32 pipe_id, layer_id;
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get_resources_id(blk->block_info, &pipe_id, &layer_id);
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c = komeda_component_add(&d71->pipes[pipe_id]->base, sizeof(*wb_layer),
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layer_id, BLOCK_INFO_INPUT_ID(blk->block_info),
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&d71_wb_layer_funcs,
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1, get_valid_inputs(blk), 0, reg,
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"LPU%d_LAYER_WR", pipe_id);
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if (IS_ERR(c)) {
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DRM_ERROR("Failed to add wb_layer component\n");
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return PTR_ERR(c);
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}
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wb_layer = to_layer(c);
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wb_layer->layer_type = KOMEDA_FMT_WB_LAYER;
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set_range(&wb_layer->hsize_in, D71_MIN_LINE_SIZE, d71->max_line_size);
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set_range(&wb_layer->vsize_in, D71_MIN_VERTICAL_SIZE, d71->max_vsize);
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return 0;
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}
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@ -165,6 +165,15 @@ void komeda_crtc_handle_event(struct komeda_crtc *kcrtc,
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if (events & KOMEDA_EVENT_VSYNC)
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drm_crtc_handle_vblank(crtc);
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if (events & KOMEDA_EVENT_EOW) {
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struct komeda_wb_connector *wb_conn = kcrtc->wb_conn;
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if (wb_conn)
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drm_writeback_signal_completion(&wb_conn->base, 0);
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else
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DRM_WARN("CRTC[%d]: EOW happen but no wb_connector.\n",
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drm_crtc_index(&kcrtc->base));
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}
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/* will handle it together with the write back support */
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if (events & KOMEDA_EVENT_EOW)
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DRM_DEBUG("EOW.\n");
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@ -201,6 +210,8 @@ komeda_crtc_do_flush(struct drm_crtc *crtc,
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struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(crtc->state);
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struct komeda_dev *mdev = kcrtc->base.dev->dev_private;
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struct komeda_pipeline *master = kcrtc->master;
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struct komeda_wb_connector *wb_conn = kcrtc->wb_conn;
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struct drm_connector_state *conn_st;
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DRM_DEBUG_ATOMIC("CRTC%d_FLUSH: active_pipes: 0x%x, affected: 0x%x.\n",
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drm_crtc_index(crtc),
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@ -210,6 +221,10 @@ komeda_crtc_do_flush(struct drm_crtc *crtc,
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if (has_bit(master->id, kcrtc_st->affected_pipes))
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komeda_pipeline_update(master, old->state);
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conn_st = wb_conn ? wb_conn->base.base.state : NULL;
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if (conn_st && conn_st->writeback_job)
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drm_writeback_queue_job(&wb_conn->base, conn_st);
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/* step 2: notify the HW to kickoff the update */
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mdev->funcs->flush(mdev, master->id, kcrtc_st->active_pipes);
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}
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@ -165,3 +165,22 @@ komeda_fb_get_pixel_addr(struct komeda_fb *kfb, int x, int y, int plane)
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return obj->paddr + offset;
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}
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/* if the fb can be supported by a specific layer */
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bool komeda_fb_is_layer_supported(struct komeda_fb *kfb, u32 layer_type)
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{
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struct drm_framebuffer *fb = &kfb->base;
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struct komeda_dev *mdev = fb->dev->dev_private;
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const struct komeda_format_caps *caps;
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u32 fourcc = fb->format->format;
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u64 modifier = fb->modifier;
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caps = komeda_get_format_caps(&mdev->fmt_tbl, fourcc, modifier);
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if (!caps)
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return false;
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if (!(caps->supported_layer_types & layer_type))
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return false;
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return true;
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}
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@ -188,6 +188,10 @@ struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev)
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if (err)
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goto cleanup_mode_config;
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err = komeda_kms_add_wb_connectors(kms, mdev);
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if (err)
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goto cleanup_mode_config;
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err = component_bind_all(mdev->dev, kms);
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if (err)
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goto cleanup_mode_config;
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@ -12,6 +12,7 @@
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_device.h>
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#include <drm/drm_writeback.h>
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#include <drm/drm_print.h>
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#include <video/videomode.h>
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#include <video/display_timing.h>
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@ -73,6 +74,9 @@ struct komeda_crtc {
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*/
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struct komeda_pipeline *slave;
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/** @wb_conn: komeda write back connector */
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struct komeda_wb_connector *wb_conn;
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/** @disable_done: this flip_done is for tracing the disable */
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struct completion *disable_done;
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};
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@ -116,6 +120,27 @@ struct komeda_kms_dev {
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#define to_kcrtc(p) container_of(p, struct komeda_crtc, base)
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#define to_kcrtc_st(p) container_of(p, struct komeda_crtc_state, base)
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#define to_kdev(p) container_of(p, struct komeda_kms_dev, base)
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#define to_wb_conn(x) container_of(x, struct drm_writeback_connector, base)
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static inline bool is_writeback_only(struct drm_crtc_state *st)
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{
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struct komeda_wb_connector *wb_conn = to_kcrtc(st->crtc)->wb_conn;
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struct drm_connector *conn = wb_conn ? &wb_conn->base.base : NULL;
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return conn && (st->connector_mask == BIT(drm_connector_index(conn)));
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}
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static inline bool
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is_only_changed_connector(struct drm_crtc_state *st, struct drm_connector *conn)
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{
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struct drm_crtc_state *old_st;
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u32 changed_connectors;
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old_st = drm_atomic_get_old_crtc_state(st->state, st->crtc);
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changed_connectors = st->connector_mask ^ old_st->connector_mask;
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return BIT(drm_connector_index(conn)) == changed_connectors;
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}
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int komeda_kms_setup_crtcs(struct komeda_kms_dev *kms, struct komeda_dev *mdev);
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@ -123,6 +148,8 @@ int komeda_kms_add_crtcs(struct komeda_kms_dev *kms, struct komeda_dev *mdev);
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int komeda_kms_add_planes(struct komeda_kms_dev *kms, struct komeda_dev *mdev);
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int komeda_kms_add_private_objs(struct komeda_kms_dev *kms,
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struct komeda_dev *mdev);
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int komeda_kms_add_wb_connectors(struct komeda_kms_dev *kms,
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struct komeda_dev *mdev);
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void komeda_kms_cleanup_private_objs(struct komeda_kms_dev *kms);
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void komeda_crtc_handle_event(struct komeda_crtc *kcrtc,
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@ -423,10 +423,17 @@ struct komeda_plane_state;
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struct komeda_crtc_state;
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struct komeda_crtc;
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void pipeline_composition_size(struct komeda_crtc_state *kcrtc_st,
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u16 *hsize, u16 *vsize);
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int komeda_build_layer_data_flow(struct komeda_layer *layer,
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struct komeda_plane_state *kplane_st,
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struct komeda_crtc_state *kcrtc_st,
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struct komeda_data_flow_cfg *dflow);
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int komeda_build_wb_data_flow(struct komeda_layer *wb_layer,
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struct drm_connector_state *conn_st,
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struct komeda_crtc_state *kcrtc_st,
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struct komeda_data_flow_cfg *dflow);
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int komeda_build_display_data_flow(struct komeda_crtc *kcrtc,
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struct komeda_crtc_state *kcrtc_st);
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@ -308,8 +308,41 @@ komeda_layer_validate(struct komeda_layer *layer,
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return 0;
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}
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static void pipeline_composition_size(struct komeda_crtc_state *kcrtc_st,
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u16 *hsize, u16 *vsize)
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static int
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komeda_wb_layer_validate(struct komeda_layer *wb_layer,
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struct drm_connector_state *conn_st,
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struct komeda_data_flow_cfg *dflow)
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{
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struct komeda_fb *kfb = to_kfb(conn_st->writeback_job->fb);
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struct komeda_component_state *c_st;
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struct komeda_layer_state *st;
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int i;
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if (!komeda_fb_is_layer_supported(kfb, wb_layer->layer_type))
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return -EINVAL;
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c_st = komeda_component_get_state_and_set_user(&wb_layer->base,
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conn_st->state, conn_st->connector, conn_st->crtc);
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if (IS_ERR(c_st))
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return PTR_ERR(c_st);
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st = to_layer_st(c_st);
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st->hsize = dflow->out_w;
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st->vsize = dflow->out_h;
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for (i = 0; i < kfb->base.format->num_planes; i++)
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st->addr[i] = komeda_fb_get_pixel_addr(kfb, dflow->out_x,
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dflow->out_y, i);
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komeda_component_add_input(&st->base, &dflow->input, 0);
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komeda_component_set_output(&dflow->input, &wb_layer->base, 0);
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return 0;
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}
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void pipeline_composition_size(struct komeda_crtc_state *kcrtc_st,
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u16 *hsize, u16 *vsize)
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{
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struct drm_display_mode *m = &kcrtc_st->base.adjusted_mode;
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@ -478,6 +511,20 @@ int komeda_build_layer_data_flow(struct komeda_layer *layer,
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return err;
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}
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int komeda_build_wb_data_flow(struct komeda_layer *wb_layer,
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struct drm_connector_state *conn_st,
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struct komeda_crtc_state *kcrtc_st,
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struct komeda_data_flow_cfg *dflow)
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{
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if ((dflow->in_w != dflow->out_w) ||
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(dflow->in_h != dflow->out_h)) {
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DRM_DEBUG_ATOMIC("current do not support scaling writeback.\n");
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return -EINVAL;
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}
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return komeda_wb_layer_validate(wb_layer, conn_st, dflow);
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}
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/* build display output data flow, the data path is:
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* compiz -> improc -> timing_ctrlr
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*/
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@ -252,6 +252,12 @@ int komeda_kms_add_private_objs(struct komeda_kms_dev *kms,
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return err;
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}
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if (pipe->wb_layer) {
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err = komeda_layer_obj_add(kms, pipe->wb_layer);
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if (err)
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return err;
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}
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err = komeda_compiz_obj_add(kms, pipe->compiz);
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if (err)
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return err;
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@ -0,0 +1,181 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* (C) COPYRIGHT 2018 ARM Limited. All rights reserved.
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* Author: James.Qian.Wang <james.qian.wang@arm.com>
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*
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*/
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#include "komeda_dev.h"
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#include "komeda_kms.h"
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static int
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komeda_wb_init_data_flow(struct komeda_layer *wb_layer,
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struct drm_connector_state *conn_st,
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struct komeda_crtc_state *kcrtc_st,
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struct komeda_data_flow_cfg *dflow)
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{
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struct drm_framebuffer *fb = conn_st->writeback_job ?
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conn_st->writeback_job->fb : NULL;
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if (!fb)
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return -EINVAL;
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memset(dflow, 0, sizeof(*dflow));
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dflow->out_w = fb->width;
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dflow->out_h = fb->height;
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/* the write back data comes from the compiz */
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pipeline_composition_size(kcrtc_st, &dflow->in_w, &dflow->in_h);
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dflow->input.component = &wb_layer->base.pipeline->compiz->base;
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/* compiz doesn't output alpha */
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dflow->pixel_blend_mode = DRM_MODE_BLEND_PIXEL_NONE;
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dflow->rot = DRM_MODE_ROTATE_0;
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return 0;
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}
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static int
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komeda_wb_encoder_atomic_check(struct drm_encoder *encoder,
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struct drm_crtc_state *crtc_st,
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struct drm_connector_state *conn_st)
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{
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struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(crtc_st);
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struct komeda_layer *wb_layer;
|
||||
struct komeda_data_flow_cfg dflow;
|
||||
int err;
|
||||
|
||||
if (!crtc_st->active) {
|
||||
DRM_DEBUG_ATOMIC("Cannot write the composition result out on a inactive CRTC.\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
wb_layer = to_kconn(to_wb_conn(conn_st->connector))->wb_layer;
|
||||
|
||||
/*
|
||||
* No need for a full modested when the only connector changed is the
|
||||
* writeback connector.
|
||||
*/
|
||||
if (crtc_st->connectors_changed &&
|
||||
is_only_changed_connector(crtc_st, conn_st->connector))
|
||||
crtc_st->connectors_changed = false;
|
||||
|
||||
err = komeda_wb_init_data_flow(wb_layer, conn_st, kcrtc_st, &dflow);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
return komeda_build_wb_data_flow(wb_layer, conn_st, kcrtc_st, &dflow);
|
||||
}
|
||||
|
||||
static const struct drm_encoder_helper_funcs komeda_wb_encoder_helper_funcs = {
|
||||
.atomic_check = komeda_wb_encoder_atomic_check,
|
||||
};
|
||||
|
||||
static int
|
||||
komeda_wb_connector_get_modes(struct drm_connector *connector)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static enum drm_mode_status
|
||||
komeda_wb_connector_mode_valid(struct drm_connector *connector,
|
||||
struct drm_display_mode *mode)
|
||||
{
|
||||
struct drm_device *dev = connector->dev;
|
||||
struct drm_mode_config *mode_config = &dev->mode_config;
|
||||
int w = mode->hdisplay, h = mode->vdisplay;
|
||||
|
||||
if ((w < mode_config->min_width) || (w > mode_config->max_width))
|
||||
return MODE_BAD_HVALUE;
|
||||
|
||||
if ((h < mode_config->min_height) || (h > mode_config->max_height))
|
||||
return MODE_BAD_VVALUE;
|
||||
|
||||
return MODE_OK;
|
||||
}
|
||||
|
||||
static const struct drm_connector_helper_funcs komeda_wb_conn_helper_funcs = {
|
||||
.get_modes = komeda_wb_connector_get_modes,
|
||||
.mode_valid = komeda_wb_connector_mode_valid,
|
||||
};
|
||||
|
||||
static enum drm_connector_status
|
||||
komeda_wb_connector_detect(struct drm_connector *connector, bool force)
|
||||
{
|
||||
return connector_status_connected;
|
||||
}
|
||||
|
||||
static int
|
||||
komeda_wb_connector_fill_modes(struct drm_connector *connector,
|
||||
uint32_t maxX, uint32_t maxY)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void komeda_wb_connector_destroy(struct drm_connector *connector)
|
||||
{
|
||||
drm_connector_cleanup(connector);
|
||||
kfree(to_kconn(to_wb_conn(connector)));
|
||||
}
|
||||
|
||||
static const struct drm_connector_funcs komeda_wb_connector_funcs = {
|
||||
.reset = drm_atomic_helper_connector_reset,
|
||||
.detect = komeda_wb_connector_detect,
|
||||
.fill_modes = komeda_wb_connector_fill_modes,
|
||||
.destroy = komeda_wb_connector_destroy,
|
||||
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
|
||||
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
|
||||
};
|
||||
|
||||
static int komeda_wb_connector_add(struct komeda_kms_dev *kms,
|
||||
struct komeda_crtc *kcrtc)
|
||||
{
|
||||
struct komeda_dev *mdev = kms->base.dev_private;
|
||||
struct komeda_wb_connector *kwb_conn;
|
||||
struct drm_writeback_connector *wb_conn;
|
||||
u32 *formats, n_formats = 0;
|
||||
int err;
|
||||
|
||||
if (!kcrtc->master->wb_layer)
|
||||
return 0;
|
||||
|
||||
kwb_conn = kzalloc(sizeof(*wb_conn), GFP_KERNEL);
|
||||
if (!kwb_conn)
|
||||
return -ENOMEM;
|
||||
|
||||
kwb_conn->wb_layer = kcrtc->master->wb_layer;
|
||||
|
||||
wb_conn = &kwb_conn->base;
|
||||
wb_conn->encoder.possible_crtcs = BIT(drm_crtc_index(&kcrtc->base));
|
||||
|
||||
formats = komeda_get_layer_fourcc_list(&mdev->fmt_tbl,
|
||||
kwb_conn->wb_layer->layer_type,
|
||||
&n_formats);
|
||||
|
||||
err = drm_writeback_connector_init(&kms->base, wb_conn,
|
||||
&komeda_wb_connector_funcs,
|
||||
&komeda_wb_encoder_helper_funcs,
|
||||
formats, n_formats);
|
||||
komeda_put_fourcc_list(formats);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
drm_connector_helper_add(&wb_conn->base, &komeda_wb_conn_helper_funcs);
|
||||
|
||||
kcrtc->wb_conn = kwb_conn;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int komeda_kms_add_wb_connectors(struct komeda_kms_dev *kms,
|
||||
struct komeda_dev *mdev)
|
||||
{
|
||||
int i, err;
|
||||
|
||||
for (i = 0; i < kms->n_crtcs; i++) {
|
||||
err = komeda_wb_connector_add(kms, &kms->crtcs[i]);
|
||||
if (err)
|
||||
return err;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue