On Thu, Apr 04, 2019 at 12:06:14PM +0100, james qian wang (Arm Technology China) wrote: > For supporting AFBC: > 1. Check if the user requested modifier can be supported by display HW. > 2. Check the obj->size with AFBC's requirement. > 3. Configure HW according to the modifier (afbc features) Can we have a bit more detailed commit message listing the various constraints (about which combination of modifiers, format and block sizes are valid) ? > > This patch depends on: > - https://patchwork.freedesktop.org/series/54448/ > - https://patchwork.freedesktop.org/series/54449/ > - https://patchwork.freedesktop.org/series/54450/ > - https://patchwork.freedesktop.org/series/58976/ > - https://patchwork.freedesktop.org/series/59000/ > > Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@xxxxxxx> > --- > .../arm/display/komeda/d71/d71_component.c | 39 ++++++++++ > .../arm/display/komeda/komeda_format_caps.c | 53 +++++++++++++ > .../arm/display/komeda/komeda_format_caps.h | 5 ++ > .../arm/display/komeda/komeda_framebuffer.c | 74 ++++++++++++++++++- > .../arm/display/komeda/komeda_framebuffer.h | 4 + > .../gpu/drm/arm/display/komeda/komeda_kms.c | 2 +- > .../drm/arm/display/komeda/komeda_pipeline.h | 4 + > .../display/komeda/komeda_pipeline_state.c | 18 ++++- > .../gpu/drm/arm/display/komeda/komeda_plane.c | 15 +++- > 9 files changed, 209 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 b582afcf9210..33ca1718b5cd 100644 > --- a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c > +++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c > @@ -134,6 +134,27 @@ static u32 to_rot_ctrl(u32 rot) > return lr_ctrl; > } > > +static u32 to_ad_ctrl(u64 modifier) > +{ > + u32 afbc_ctrl = AD_AEN; > + > + if (!modifier) > + return 0; > + > + if ((modifier & AFBC_FORMAT_MOD_BLOCK_SIZE_MASK) == > + AFBC_FORMAT_MOD_BLOCK_SIZE_32x8) > + afbc_ctrl |= AD_WB; > + > + if (modifier & AFBC_FORMAT_MOD_YTR) > + afbc_ctrl |= AD_YT; > + if (modifier & AFBC_FORMAT_MOD_SPLIT) > + afbc_ctrl |= AD_BS; > + if (modifier & AFBC_FORMAT_MOD_TILED) > + afbc_ctrl |= AD_TH; > + > + return afbc_ctrl; > +} > + > static inline u32 to_d71_input_id(struct komeda_component_output *output) > { > struct komeda_component *comp = output->component; > @@ -173,6 +194,24 @@ static void d71_layer_update(struct komeda_component *c, > fb->pitches[i] & 0xFFFF); > } > > + malidp_write32(reg, AD_CONTROL, to_ad_ctrl(fb->modifier)); > + if (fb->modifier) { > + u64 addr; > + > + malidp_write32(reg, LAYER_AD_H_CROP, HV_CROP(st->afbc_crop_l, > + st->afbc_crop_r)); > + malidp_write32(reg, LAYER_AD_V_CROP, HV_CROP(st->afbc_crop_t, > + st->afbc_crop_b)); > + /* afbc 1.2 wants payload, afbc 1.0/1.1 wants end_addr */ > + if (fb->modifier & AFBC_FORMAT_MOD_TILED) > + addr = st->addr[0] + kfb->offset_payload; > + else > + addr = st->addr[0] + kfb->afbc_size - 1; > + > + malidp_write32(reg, BLK_P1_PTR_LOW, lower_32_bits(addr)); > + malidp_write32(reg, BLK_P1_PTR_HIGH, upper_32_bits(addr)); > + } > + > malidp_write32(reg, LAYER_FMT, kfb->format_caps->hw_id); > malidp_write32(reg, BLK_IN_SIZE, HV_SIZE(st->hsize, st->vsize)); > > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_format_caps.c b/drivers/gpu/drm/arm/display/komeda/komeda_format_caps.c > index 1e17bd6107a4..b2195142e3f3 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_format_caps.c > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_format_caps.c > @@ -35,6 +35,59 @@ komeda_get_format_caps(struct komeda_format_caps_table *table, > return NULL; > } > > +/* Two assumptions > + * 1. RGB always has YTR > + * 2. Tiled RGB always has SC > + */ > +u64 komeda_supported_modifiers[] = { > + /* AFBC_16x16 + features: YUV+RGB both */ > + AFBC_16x16(0), > + /* SPARSE */ > + AFBC_16x16(_SPARSE), > + /* YTR + (SPARSE) */ > + AFBC_16x16(_YTR | _SPARSE), > + AFBC_16x16(_YTR), > + /* SPLIT + SPARSE + YTR RGB only */ > + /* split mode is only allowed for sparse mode */ > + AFBC_16x16(_SPLIT | _SPARSE | _YTR), > + /* TILED + (SPARSE) */ > + /* TILED YUV format only */ > + AFBC_16x16(_TILED | _SPARSE), > + AFBC_16x16(_TILED), > + /* TILED + SC + (SPLIT+SPARSE | SPARSE) + (YTR) */ > + AFBC_16x16(_TILED | _SC | _SPLIT | _SPARSE | _YTR), > + AFBC_16x16(_TILED | _SC | _SPARSE | _YTR), > + AFBC_16x16(_TILED | _SC | _YTR), > + /* AFBC_32x8 + features: which are RGB formats only */ > + /* YTR + (SPARSE) */ > + AFBC_32x8(_YTR | _SPARSE), > + AFBC_32x8(_YTR), > + /* SPLIT + SPARSE + (YTR) */ > + /* split mode is only allowed for sparse mode */ > + AFBC_32x8(_SPLIT | _SPARSE | _YTR), > + /* TILED + SC + (SPLIT+SPARSE | SPARSE) + YTR */ > + AFBC_32x8(_TILED | _SC | _SPLIT | _SPARSE | _YTR), > + AFBC_32x8(_TILED | _SC | _SPARSE | _YTR), > + AFBC_32x8(_TILED | _SC | _YTR), > + DRM_FORMAT_MOD_LINEAR, > + DRM_FORMAT_MOD_INVALID > +}; > + > +bool komeda_format_mod_supported(struct komeda_format_caps_table *table, > + u32 layer_type, u32 fourcc, u64 modifier) > +{ > + const struct komeda_format_caps *caps; > + Do we have a NULL check on 'table' anywhere? I see it gets dereferenced in the function call below. > + caps = komeda_get_format_caps(table, fourcc, modifier); > + if (!caps) > + return false; > + > + if (!(caps->supported_layer_types & layer_type)) > + return false; > + > + return true; > +} > + > u32 *komeda_get_layer_fourcc_list(struct komeda_format_caps_table *table, > u32 layer_type, u32 *n_fmts) > { > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_format_caps.h b/drivers/gpu/drm/arm/display/komeda/komeda_format_caps.h > index 60f39e77b098..bc3b2df361b9 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_format_caps.h > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_format_caps.h > @@ -77,6 +77,8 @@ struct komeda_format_caps_table { > const struct komeda_format_caps *format_caps; > }; > > +extern u64 komeda_supported_modifiers[]; > + > const struct komeda_format_caps * > komeda_get_format_caps(struct komeda_format_caps_table *table, > u32 fourcc, u64 modifier); > @@ -86,4 +88,7 @@ u32 *komeda_get_layer_fourcc_list(struct komeda_format_caps_table *table, > > void komeda_put_fourcc_list(u32 *fourcc_list); > > +bool komeda_format_mod_supported(struct komeda_format_caps_table *table, > + u32 layer_type, u32 fourcc, u64 modifier); > + > #endif > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c > index 4d8160cf09c3..f842c886c73c 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c > @@ -36,6 +36,75 @@ static const struct drm_framebuffer_funcs komeda_fb_funcs = { > .create_handle = komeda_fb_create_handle, > }; > > +static int > +komeda_fb_afbc_size_check(struct komeda_fb *kfb, struct drm_file *file, > + const struct drm_mode_fb_cmd2 *mode_cmd) > +{ > + struct drm_framebuffer *fb = &kfb->base; > + const struct drm_format_info *info = fb->format; > + struct drm_gem_object *obj; > + u32 alignment_w = 0, alignment_h = 0, alignment_header; > + u32 n_blocks = 0, min_size = 0; > + > + obj = drm_gem_object_lookup(file, mode_cmd->handles[0]); > + if (!obj) { > + DRM_DEBUG_KMS("Failed to lookup GEM object\n"); > + return -ENOENT; > + } > + > + switch (fb->modifier & AFBC_FORMAT_MOD_BLOCK_SIZE_MASK) { > + case AFBC_FORMAT_MOD_BLOCK_SIZE_32x8: > + alignment_w = 32; > + alignment_h = 8; > + break; > + case AFBC_FORMAT_MOD_BLOCK_SIZE_16x16: > + alignment_w = 16; > + alignment_h = 16; > + break; > + default: Can we have something like a warn here ? > + break; > + } > + > + /* tiled header afbc */ > + if (fb->modifier & AFBC_FORMAT_MOD_TILED) { > + alignment_w *= AFBC_TH_LAYOUT_ALIGNMENT; > + alignment_h *= AFBC_TH_LAYOUT_ALIGNMENT; > + alignment_header = AFBC_TH_BODY_START_ALIGNMENT; > + } else { > + alignment_header = AFBC_BODY_START_ALIGNMENT; > + } > + > + kfb->aligned_w = ALIGN(fb->width, alignment_w); > + kfb->aligned_h = ALIGN(fb->height, alignment_h); > + > + if (fb->offsets[0] % alignment_header) { > + DRM_DEBUG_KMS("afbc offset alignment check failed.\n"); > + goto afbc_unreference; > + } > + > + n_blocks = (kfb->aligned_w * kfb->aligned_h) / AFBC_SUPERBLK_PIXELS; > + kfb->offset_payload = ALIGN(n_blocks * AFBC_HEADER_SIZE, > + alignment_header); > + > + kfb->afbc_size = kfb->offset_payload + n_blocks * > + ALIGN(info->cpp[0] * AFBC_SUPERBLK_PIXELS, > + AFBC_SUPERBLK_ALIGNMENT); > + min_size = kfb->afbc_size + fb->offsets[0]; > + if (min_size > obj->size) { > + DRM_DEBUG_KMS("afbc size check failed, obj_size: 0x%lx. min_size 0x%x.\n", > + obj->size, min_size); > + goto afbc_unreference; > + } > + > + fb->obj[0] = obj; > + return 0; > + > +afbc_unreference: Why not call it afbc_fail ? > + drm_gem_object_put_unlocked(obj); > + fb->obj[0] = NULL; > + return -EINVAL; > +} > + > static int > komeda_fb_none_afbc_size_check(struct komeda_dev *mdev, struct komeda_fb *kfb, > struct drm_file *file, > @@ -118,7 +187,10 @@ komeda_fb_create(struct drm_device *dev, struct drm_file *file, > > drm_helper_mode_fill_fb_struct(dev, &kfb->base, mode_cmd); > > - ret = komeda_fb_none_afbc_size_check(mdev, kfb, file, mode_cmd); > + if (kfb->base.modifier) > + ret = komeda_fb_afbc_size_check(kfb, file, mode_cmd); > + else > + ret = komeda_fb_none_afbc_size_check(mdev, kfb, file, mode_cmd); > if (ret < 0) > goto err_cleanup; > > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.h b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.h > index ea2fe190c1e3..e3bab0defd72 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.h > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.h > @@ -25,6 +25,10 @@ struct komeda_fb { > u32 aligned_w; > /** @aligned_h: aligned frame buffer height */ > u32 aligned_h; > + /** @afbc_size: minimum size of afbc */ > + u32 afbc_size; > + /** @offset_payload: start of afbc body buffer */ > + u32 offset_payload; > }; > > #define to_kfb(dfb) container_of(dfb, struct komeda_fb, base) > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c > index 3e58901fb776..306ea069a1b4 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c > @@ -148,7 +148,7 @@ static void komeda_kms_mode_config_init(struct komeda_kms_dev *kms, > config->min_height = 0; > config->max_width = 4096; > config->max_height = 4096; > - config->allow_fb_modifiers = false; > + config->allow_fb_modifiers = true; > > config->funcs = &komeda_mode_config_funcs; > config->helper_private = &komeda_mode_config_helpers; > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h > index 7998a1e456b7..ba5bc0810c81 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h > @@ -235,6 +235,10 @@ struct komeda_layer_state { > /* layer specific configuration state */ > u16 hsize, vsize; > u32 rot; > + u16 afbc_crop_l; > + u16 afbc_crop_r; > + u16 afbc_crop_t; > + u16 afbc_crop_b; > dma_addr_t addr[3]; > }; > > 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 944dca2e3379..9b29e9a9f49c 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c > @@ -289,8 +289,22 @@ komeda_layer_validate(struct komeda_layer *layer, > st = to_layer_st(c_st); > > st->rot = dflow->rot; > - st->hsize = kfb->aligned_w; > - st->vsize = kfb->aligned_h; > + Can you put some comments here explaining the snippet below? > + if (fb->modifier) { > + st->hsize = kfb->aligned_w; > + st->vsize = kfb->aligned_h; > + st->afbc_crop_l = dflow->in_x; > + st->afbc_crop_r = kfb->aligned_w - dflow->in_x - dflow->in_w; > + st->afbc_crop_t = dflow->in_y; > + st->afbc_crop_b = kfb->aligned_h - dflow->in_y - dflow->in_h; > + } else { > + st->hsize = dflow->in_w; > + st->vsize = dflow->in_h; > + st->afbc_crop_l = 0; > + st->afbc_crop_r = 0; > + st->afbc_crop_t = 0; > + st->afbc_crop_b = 0; > + } > > for (i = 0; i < fb->format->num_planes; i++) > st->addr[i] = komeda_fb_get_pixel_addr(kfb, dflow->in_x, > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c > index aae5e800bed4..14d68612052f 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c > @@ -150,6 +150,18 @@ komeda_plane_atomic_destroy_state(struct drm_plane *plane, > kfree(to_kplane_st(state)); > } > > +static bool > +komeda_plane_format_mod_supported(struct drm_plane *plane, > + u32 format, u64 modifier) > +{ > + struct komeda_dev *mdev = plane->dev->dev_private; > + struct komeda_plane *kplane = to_kplane(plane); > + u32 layer_type = kplane->layer->layer_type; > + > + return komeda_format_mod_supported(&mdev->fmt_tbl, layer_type, > + format, modifier); > +} > + > static const struct drm_plane_funcs komeda_plane_funcs = { > .update_plane = drm_atomic_helper_update_plane, > .disable_plane = drm_atomic_helper_disable_plane, > @@ -157,6 +169,7 @@ static const struct drm_plane_funcs komeda_plane_funcs = { > .reset = komeda_plane_reset, > .atomic_duplicate_state = komeda_plane_atomic_duplicate_state, > .atomic_destroy_state = komeda_plane_atomic_destroy_state, > + .format_mod_supported = komeda_plane_format_mod_supported, > }; > > /* for komeda, which is pipeline can be share between crtcs */ > @@ -209,7 +222,7 @@ static int komeda_plane_add(struct komeda_kms_dev *kms, > err = drm_universal_plane_init(&kms->base, plane, > get_possible_crtcs(kms, c->pipeline), > &komeda_plane_funcs, > - formats, n_formats, NULL, > + formats, n_formats, komeda_supported_modifiers, > get_plane_type(kms, c), > "%s", c->name); > > -- > 2.17.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
