diff options
Diffstat (limited to 'drivers/gpu/drm/ingenic/ingenic-ipu.c')
| -rw-r--r-- | drivers/gpu/drm/ingenic/ingenic-ipu.c | 127 |
1 files changed, 108 insertions, 19 deletions
diff --git a/drivers/gpu/drm/ingenic/ingenic-ipu.c b/drivers/gpu/drm/ingenic/ingenic-ipu.c index aeb8a757d213..2737fc521e15 100644 --- a/drivers/gpu/drm/ingenic/ingenic-ipu.c +++ b/drivers/gpu/drm/ingenic/ingenic-ipu.c @@ -45,6 +45,12 @@ struct soc_info { unsigned int weight, unsigned int offset); }; +struct ingenic_ipu_private_state { + struct drm_private_state base; + + unsigned int num_w, num_h, denom_w, denom_h; +}; + struct ingenic_ipu { struct drm_plane plane; struct drm_device *drm; @@ -54,12 +60,12 @@ struct ingenic_ipu { const struct soc_info *soc_info; bool clk_enabled; - unsigned int num_w, num_h, denom_w, denom_h; - dma_addr_t addr_y, addr_u, addr_v; struct drm_property *sharpness_prop; unsigned int sharpness; + + struct drm_private_obj private_obj; }; /* Signed 15.16 fixed-point math (for bicubic scaling coefficients) */ @@ -73,6 +79,36 @@ static inline struct ingenic_ipu *plane_to_ingenic_ipu(struct drm_plane *plane) return container_of(plane, struct ingenic_ipu, plane); } +static inline struct ingenic_ipu_private_state * +to_ingenic_ipu_priv_state(struct drm_private_state *state) +{ + return container_of(state, struct ingenic_ipu_private_state, base); +} + +static struct ingenic_ipu_private_state * +ingenic_ipu_get_priv_state(struct ingenic_ipu *priv, struct drm_atomic_state *state) +{ + struct drm_private_state *priv_state; + + priv_state = drm_atomic_get_private_obj_state(state, &priv->private_obj); + if (IS_ERR(priv_state)) + return ERR_CAST(priv_state); + + return to_ingenic_ipu_priv_state(priv_state); +} + +static struct ingenic_ipu_private_state * +ingenic_ipu_get_new_priv_state(struct ingenic_ipu *priv, struct drm_atomic_state *state) +{ + struct drm_private_state *priv_state; + + priv_state = drm_atomic_get_new_private_obj_state(state, &priv->private_obj); + if (!priv_state) + return NULL; + + return to_ingenic_ipu_priv_state(priv_state); +} + /* * Apply conventional cubic convolution kernel. Both parameters * and return value are 15.16 signed fixed-point. @@ -293,11 +329,16 @@ static void ingenic_ipu_plane_atomic_update(struct drm_plane *plane, const struct drm_format_info *finfo; u32 ctrl, stride = 0, coef_index = 0, format = 0; bool needs_modeset, upscaling_w, upscaling_h; + struct ingenic_ipu_private_state *ipu_state; int err; if (!newstate || !newstate->fb) return; + ipu_state = ingenic_ipu_get_new_priv_state(ipu, state); + if (WARN_ON(!ipu_state)) + return; + finfo = drm_format_info(newstate->fb->format->format); if (!ipu->clk_enabled) { @@ -470,27 +511,27 @@ static void ingenic_ipu_plane_atomic_update(struct drm_plane *plane, if (ipu->soc_info->has_bicubic) ctrl |= JZ_IPU_CTRL_ZOOM_SEL; - upscaling_w = ipu->num_w > ipu->denom_w; + upscaling_w = ipu_state->num_w > ipu_state->denom_w; if (upscaling_w) ctrl |= JZ_IPU_CTRL_HSCALE; - if (ipu->num_w != 1 || ipu->denom_w != 1) { + if (ipu_state->num_w != 1 || ipu_state->denom_w != 1) { if (!ipu->soc_info->has_bicubic && !upscaling_w) - coef_index |= (ipu->denom_w - 1) << 16; + coef_index |= (ipu_state->denom_w - 1) << 16; else - coef_index |= (ipu->num_w - 1) << 16; + coef_index |= (ipu_state->num_w - 1) << 16; ctrl |= JZ_IPU_CTRL_HRSZ_EN; } - upscaling_h = ipu->num_h > ipu->denom_h; + upscaling_h = ipu_state->num_h > ipu_state->denom_h; if (upscaling_h) ctrl |= JZ_IPU_CTRL_VSCALE; - if (ipu->num_h != 1 || ipu->denom_h != 1) { + if (ipu_state->num_h != 1 || ipu_state->denom_h != 1) { if (!ipu->soc_info->has_bicubic && !upscaling_h) - coef_index |= ipu->denom_h - 1; + coef_index |= ipu_state->denom_h - 1; else - coef_index |= ipu->num_h - 1; + coef_index |= ipu_state->num_h - 1; ctrl |= JZ_IPU_CTRL_VRSZ_EN; } @@ -501,13 +542,13 @@ static void ingenic_ipu_plane_atomic_update(struct drm_plane *plane, /* Set the LUT index register */ regmap_write(ipu->map, JZ_REG_IPU_RSZ_COEF_INDEX, coef_index); - if (ipu->num_w != 1 || ipu->denom_w != 1) + if (ipu_state->num_w != 1 || ipu_state->denom_w != 1) ingenic_ipu_set_coefs(ipu, JZ_REG_IPU_HRSZ_COEF_LUT, - ipu->num_w, ipu->denom_w); + ipu_state->num_w, ipu_state->denom_w); - if (ipu->num_h != 1 || ipu->denom_h != 1) + if (ipu_state->num_h != 1 || ipu_state->denom_h != 1) ingenic_ipu_set_coefs(ipu, JZ_REG_IPU_VRSZ_COEF_LUT, - ipu->num_h, ipu->denom_h); + ipu_state->num_h, ipu_state->denom_h); /* Clear STATUS register */ regmap_write(ipu->map, JZ_REG_IPU_STATUS, 0); @@ -519,7 +560,8 @@ static void ingenic_ipu_plane_atomic_update(struct drm_plane *plane, dev_dbg(ipu->dev, "Scaling %ux%u to %ux%u (%u:%u horiz, %u:%u vert)\n", newstate->src_w >> 16, newstate->src_h >> 16, newstate->crtc_w, newstate->crtc_h, - ipu->num_w, ipu->denom_w, ipu->num_h, ipu->denom_h); + ipu_state->num_w, ipu_state->denom_w, + ipu_state->num_h, ipu_state->denom_h); } static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane, @@ -533,6 +575,7 @@ static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane, struct ingenic_ipu *ipu = plane_to_ingenic_ipu(plane); struct drm_crtc *crtc = new_plane_state->crtc ?: old_plane_state->crtc; struct drm_crtc_state *crtc_state; + struct ingenic_ipu_private_state *ipu_state; if (!crtc) return 0; @@ -541,6 +584,10 @@ static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane, if (WARN_ON(!crtc_state)) return -EINVAL; + ipu_state = ingenic_ipu_get_priv_state(ipu, state); + if (IS_ERR(ipu_state)) + return PTR_ERR(ipu_state); + /* Request a full modeset if we are enabling or disabling the IPU. */ if (!old_plane_state->crtc ^ !new_plane_state->crtc) crtc_state->mode_changed = true; @@ -593,10 +640,10 @@ static int ingenic_ipu_plane_atomic_check(struct drm_plane *plane, if (num_h > max_h) return -EINVAL; - ipu->num_w = num_w; - ipu->num_h = num_h; - ipu->denom_w = denom_w; - ipu->denom_h = denom_h; + ipu_state->num_w = num_w; + ipu_state->num_h = num_h; + ipu_state->denom_w = denom_w; + ipu_state->denom_h = denom_h; out_check_damage: if (ingenic_drm_map_noncoherent(ipu->master)) @@ -679,6 +726,33 @@ static const struct drm_plane_funcs ingenic_ipu_plane_funcs = { .atomic_set_property = ingenic_ipu_plane_atomic_set_property, }; +static struct drm_private_state * +ingenic_ipu_duplicate_state(struct drm_private_obj *obj) +{ + struct ingenic_ipu_private_state *state = to_ingenic_ipu_priv_state(obj->state); + + state = kmemdup(state, sizeof(*state), GFP_KERNEL); + if (!state) + return NULL; + + __drm_atomic_helper_private_obj_duplicate_state(obj, &state->base); + + return &state->base; +} + +static void ingenic_ipu_destroy_state(struct drm_private_obj *obj, + struct drm_private_state *state) +{ + struct ingenic_ipu_private_state *priv_state = to_ingenic_ipu_priv_state(state); + + kfree(priv_state); +} + +static const struct drm_private_state_funcs ingenic_ipu_private_state_funcs = { + .atomic_duplicate_state = ingenic_ipu_duplicate_state, + .atomic_destroy_state = ingenic_ipu_destroy_state, +}; + static irqreturn_t ingenic_ipu_irq_handler(int irq, void *arg) { struct ingenic_ipu *ipu = arg; @@ -717,6 +791,7 @@ static const struct regmap_config ingenic_ipu_regmap_config = { static int ingenic_ipu_bind(struct device *dev, struct device *master, void *d) { struct platform_device *pdev = to_platform_device(dev); + struct ingenic_ipu_private_state *private_state; const struct soc_info *soc_info; struct drm_device *drm = d; struct drm_plane *plane; @@ -810,7 +885,20 @@ static int ingenic_ipu_bind(struct device *dev, struct device *master, void *d) return err; } + private_state = kzalloc(sizeof(*private_state), GFP_KERNEL); + if (!private_state) { + err = -ENOMEM; + goto err_clk_unprepare; + } + + drm_atomic_private_obj_init(drm, &ipu->private_obj, &private_state->base, + &ingenic_ipu_private_state_funcs); + return 0; + +err_clk_unprepare: + clk_unprepare(ipu->clk); + return err; } static void ingenic_ipu_unbind(struct device *dev, @@ -818,6 +906,7 @@ static void ingenic_ipu_unbind(struct device *dev, { struct ingenic_ipu *ipu = dev_get_drvdata(dev); + drm_atomic_private_obj_fini(&ipu->private_obj); clk_unprepare(ipu->clk); } |