[PATCH v3 01/11] drm/atomic: Pass the full state to planes async atomic check and update
Thomas Zimmermann
tzimmermann at suse.de
Wed Feb 24 06:33:45 EST 2021
Hi Maxime,
for the whole series:
Acked-by: Thomas Zimmermann <tzimmermann at suse.de>
Am 19.02.21 um 13:00 schrieb Maxime Ripard:
> The current atomic helpers have either their object state being passed as
> an argument or the full atomic state.
>
> The former is the pattern that was done at first, before switching to the
> latter for new hooks or when it was needed.
>
> Let's start convert all the remaining helpers to provide a consistent
> interface, starting with the planes atomic_async_check and
> atomic_async_update.
>
> The conversion was done using the coccinelle script below, built tested on
> all the drivers.
>
> @@
> identifier plane, plane_state;
> symbol state;
> @@
>
> struct drm_plane_helper_funcs {
> ...
> int (*atomic_async_check)(struct drm_plane *plane,
> - struct drm_plane_state *plane_state);
> + struct drm_atomic_state *state);
> ...
> }
>
> @@
> identifier plane, plane_state;
> symbol state;
> @@
> struct drm_plane_helper_funcs {
> ...
> void (*atomic_async_update)(struct drm_plane *plane,
> - struct drm_plane_state *plane_state);
> + struct drm_atomic_state *state);
> ...
> }
>
> @ plane_atomic_func @
> identifier helpers;
> identifier func;
> @@
>
> (
> static const struct drm_plane_helper_funcs helpers = {
> ...,
> .atomic_async_check = func,
> ...,
> };
> |
> static const struct drm_plane_helper_funcs helpers = {
> ...,
> .atomic_async_update = func,
> ...,
> };
> )
>
> @@
> struct drm_plane_helper_funcs *FUNCS;
> identifier f;
> identifier dev;
> identifier plane, plane_state, state;
> @@
>
> f(struct drm_device *dev, struct drm_atomic_state *state)
> {
> <+...
> - FUNCS->atomic_async_check(plane, plane_state)
> + FUNCS->atomic_async_check(plane, state)
> ...+>
> }
>
> @@
> struct drm_plane_helper_funcs *FUNCS;
> identifier f;
> identifier dev;
> identifier plane, plane_state, state;
> @@
>
> f(struct drm_device *dev, struct drm_atomic_state *state)
> {
> <+...
> - FUNCS->atomic_async_update(plane, plane_state)
> + FUNCS->atomic_async_update(plane, state)
> ...+>
> }
>
> @@
> identifier mtk_plane_atomic_async_update;
> identifier plane;
> symbol new_state, state;
> expression e;
> @@
>
> void mtk_plane_atomic_async_update(struct drm_plane *plane, struct drm_plane_state *new_state)
> {
> ...
> - struct mtk_plane_state *state = e;
> + struct mtk_plane_state *new_plane_state = e;
> <+...
> - state
> + new_plane_state
> ...+>
> }
>
> @@
> identifier plane_atomic_func.func;
> identifier plane;
> symbol state;
> @@
>
> func(struct drm_plane *plane,
> - struct drm_plane_state *state)
> + struct drm_plane_state *new_plane_state)
> {
> <...
> - state
> + new_plane_state
> ...>
> }
>
> @ ignores_new_state @
> identifier plane_atomic_func.func;
> identifier plane, new_plane_state;
> @@
>
> func(struct drm_plane *plane, struct drm_plane_state *new_plane_state)
> {
> ... when != new_plane_state
> }
>
> @ adds_new_state depends on plane_atomic_func && !ignores_new_state @
> identifier plane_atomic_func.func;
> identifier plane, new_plane_state;
> @@
>
> func(struct drm_plane *plane, struct drm_plane_state *new_plane_state)
> {
> + struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
> ...
> }
>
> @ depends on plane_atomic_func @
> identifier plane_atomic_func.func;
> identifier plane, plane_state;
> @@
>
> func(struct drm_plane *plane,
> - struct drm_plane_state *plane_state
> + struct drm_atomic_state *state
> )
> { ... }
>
> @ include depends on adds_new_state @
> @@
>
> #include <drm/drm_atomic.h>
>
> @ no_include depends on !include && adds_new_state @
> @@
>
> + #include <drm/drm_atomic.h>
> #include <drm/...>
>
> @@
> identifier plane_atomic_func.func;
> identifier plane, state;
> identifier plane_state;
> @@
>
> func(struct drm_plane *plane, struct drm_atomic_state *state) {
> ...
> struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane);
> <+...
> - plane_state->state
> + state
> ...+>
> }
>
> Acked-by: Thomas Zimmermann <tzimmermann at suse.de>
> Signed-off-by: Maxime Ripard <maxime at cerno.tech>
>
> ---
>
> Changes from v1:
> - Updated the comment according to Thomas suggestions
> ---
> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 8 ++-
> drivers/gpu/drm/drm_atomic_helper.c | 4 +-
> drivers/gpu/drm/mediatek/mtk_drm_plane.c | 26 +++++----
> drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c | 33 ++++++-----
> drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 16 ++++--
> drivers/gpu/drm/vc4/vc4_plane.c | 56 ++++++++++---------
> include/drm/drm_modeset_helper_vtables.h | 18 +++---
> 7 files changed, 89 insertions(+), 72 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 6ed96633425f..63f839679a0a 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -6468,7 +6468,7 @@ static int dm_plane_atomic_check(struct drm_plane *plane,
> }
>
> static int dm_plane_atomic_async_check(struct drm_plane *plane,
> - struct drm_plane_state *new_plane_state)
> + struct drm_atomic_state *state)
> {
> /* Only support async updates on cursor planes. */
> if (plane->type != DRM_PLANE_TYPE_CURSOR)
> @@ -6478,10 +6478,12 @@ static int dm_plane_atomic_async_check(struct drm_plane *plane,
> }
>
> static void dm_plane_atomic_async_update(struct drm_plane *plane,
> - struct drm_plane_state *new_state)
> + struct drm_atomic_state *state)
> {
> + struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
> + plane);
> struct drm_plane_state *old_state =
> - drm_atomic_get_old_plane_state(new_state->state, plane);
> + drm_atomic_get_old_plane_state(state, plane);
>
> trace_amdgpu_dm_atomic_update_cursor(new_state);
>
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index 9fa3f97223a1..bd0bb74437c7 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -1742,7 +1742,7 @@ int drm_atomic_helper_async_check(struct drm_device *dev,
> return -EBUSY;
> }
>
> - return funcs->atomic_async_check(plane, new_plane_state);
> + return funcs->atomic_async_check(plane, state);
> }
> EXPORT_SYMBOL(drm_atomic_helper_async_check);
>
> @@ -1772,7 +1772,7 @@ void drm_atomic_helper_async_commit(struct drm_device *dev,
> struct drm_framebuffer *old_fb = plane->state->fb;
>
> funcs = plane->helper_private;
> - funcs->atomic_async_update(plane, plane_state);
> + funcs->atomic_async_update(plane, state);
>
> /*
> * ->atomic_async_update() is supposed to update the
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> index 92141a19681b..30ebcfd8832f 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> @@ -77,12 +77,14 @@ static void mtk_drm_plane_destroy_state(struct drm_plane *plane,
> }
>
> static int mtk_plane_atomic_async_check(struct drm_plane *plane,
> - struct drm_plane_state *state)
> + struct drm_atomic_state *state)
> {
> + struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
> + plane);
> struct drm_crtc_state *crtc_state;
> int ret;
>
> - if (plane != state->crtc->cursor)
> + if (plane != new_plane_state->crtc->cursor)
> return -EINVAL;
>
> if (!plane->state)
> @@ -91,16 +93,16 @@ static int mtk_plane_atomic_async_check(struct drm_plane *plane,
> if (!plane->state->fb)
> return -EINVAL;
>
> - ret = mtk_drm_crtc_plane_check(state->crtc, plane,
> - to_mtk_plane_state(state));
> + ret = mtk_drm_crtc_plane_check(new_plane_state->crtc, plane,
> + to_mtk_plane_state(new_plane_state));
> if (ret)
> return ret;
>
> - if (state->state)
> - crtc_state = drm_atomic_get_existing_crtc_state(state->state,
> - state->crtc);
> + if (state)
> + crtc_state = drm_atomic_get_existing_crtc_state(state,
> + new_plane_state->crtc);
> else /* Special case for asynchronous cursor updates. */
> - crtc_state = state->crtc->state;
> + crtc_state = new_plane_state->crtc->state;
>
> return drm_atomic_helper_check_plane_state(plane->state, crtc_state,
> DRM_PLANE_HELPER_NO_SCALING,
> @@ -109,9 +111,11 @@ static int mtk_plane_atomic_async_check(struct drm_plane *plane,
> }
>
> static void mtk_plane_atomic_async_update(struct drm_plane *plane,
> - struct drm_plane_state *new_state)
> + struct drm_atomic_state *state)
> {
> - struct mtk_plane_state *state = to_mtk_plane_state(plane->state);
> + struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
> + plane);
> + struct mtk_plane_state *new_plane_state = to_mtk_plane_state(plane->state);
>
> plane->state->crtc_x = new_state->crtc_x;
> plane->state->crtc_y = new_state->crtc_y;
> @@ -122,7 +126,7 @@ static void mtk_plane_atomic_async_update(struct drm_plane *plane,
> plane->state->src_h = new_state->src_h;
> plane->state->src_w = new_state->src_w;
> swap(plane->state->fb, new_state->fb);
> - state->pending.async_dirty = true;
> + new_plane_state->pending.async_dirty = true;
>
> mtk_drm_crtc_async_update(new_state->crtc, plane, new_state);
> }
> diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
> index 83423092de2f..05fa8255caeb 100644
> --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
> +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
> @@ -5,6 +5,7 @@
> * Author: Rob Clark <robdclark at gmail.com>
> */
>
> +#include <drm/drm_atomic.h>
> #include <drm/drm_damage_helper.h>
> #include <drm/drm_fourcc.h>
> #include <drm/drm_print.h>
> @@ -438,41 +439,43 @@ static void mdp5_plane_atomic_update(struct drm_plane *plane,
> }
>
> static int mdp5_plane_atomic_async_check(struct drm_plane *plane,
> - struct drm_plane_state *state)
> + struct drm_atomic_state *state)
> {
> - struct mdp5_plane_state *mdp5_state = to_mdp5_plane_state(state);
> + struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
> + plane);
> + struct mdp5_plane_state *mdp5_state = to_mdp5_plane_state(new_plane_state);
> struct drm_crtc_state *crtc_state;
> int min_scale, max_scale;
> int ret;
>
> - crtc_state = drm_atomic_get_existing_crtc_state(state->state,
> - state->crtc);
> + crtc_state = drm_atomic_get_existing_crtc_state(state,
> + new_plane_state->crtc);
> if (WARN_ON(!crtc_state))
> return -EINVAL;
>
> if (!crtc_state->active)
> return -EINVAL;
>
> - mdp5_state = to_mdp5_plane_state(state);
> + mdp5_state = to_mdp5_plane_state(new_plane_state);
>
> /* don't use fast path if we don't have a hwpipe allocated yet */
> if (!mdp5_state->hwpipe)
> return -EINVAL;
>
> /* only allow changing of position(crtc x/y or src x/y) in fast path */
> - if (plane->state->crtc != state->crtc ||
> - plane->state->src_w != state->src_w ||
> - plane->state->src_h != state->src_h ||
> - plane->state->crtc_w != state->crtc_w ||
> - plane->state->crtc_h != state->crtc_h ||
> + if (plane->state->crtc != new_plane_state->crtc ||
> + plane->state->src_w != new_plane_state->src_w ||
> + plane->state->src_h != new_plane_state->src_h ||
> + plane->state->crtc_w != new_plane_state->crtc_w ||
> + plane->state->crtc_h != new_plane_state->crtc_h ||
> !plane->state->fb ||
> - plane->state->fb != state->fb)
> + plane->state->fb != new_plane_state->fb)
> return -EINVAL;
>
> min_scale = FRAC_16_16(1, 8);
> max_scale = FRAC_16_16(8, 1);
>
> - ret = drm_atomic_helper_check_plane_state(state, crtc_state,
> + ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
> min_scale, max_scale,
> true, true);
> if (ret)
> @@ -485,15 +488,17 @@ static int mdp5_plane_atomic_async_check(struct drm_plane *plane,
> * also assign/unassign the hwpipe(s) tied to the plane. We avoid
> * taking the fast path for both these reasons.
> */
> - if (state->visible != plane->state->visible)
> + if (new_plane_state->visible != plane->state->visible)
> return -EINVAL;
>
> return 0;
> }
>
> static void mdp5_plane_atomic_async_update(struct drm_plane *plane,
> - struct drm_plane_state *new_state)
> + struct drm_atomic_state *state)
> {
> + struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
> + plane);
> struct drm_framebuffer *old_fb = plane->state->fb;
>
> plane->state->src_x = new_state->src_x;
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index 8d15cabdcb02..fefeab73ca27 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -1021,8 +1021,10 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
> }
>
> static int vop_plane_atomic_async_check(struct drm_plane *plane,
> - struct drm_plane_state *state)
> + struct drm_atomic_state *state)
> {
> + struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
> + plane);
> struct vop_win *vop_win = to_vop_win(plane);
> const struct vop_win_data *win = vop_win->data;
> int min_scale = win->phy->scl ? FRAC_16_16(1, 8) :
> @@ -1031,7 +1033,7 @@ static int vop_plane_atomic_async_check(struct drm_plane *plane,
> DRM_PLANE_HELPER_NO_SCALING;
> struct drm_crtc_state *crtc_state;
>
> - if (plane != state->crtc->cursor)
> + if (plane != new_plane_state->crtc->cursor)
> return -EINVAL;
>
> if (!plane->state)
> @@ -1040,9 +1042,9 @@ static int vop_plane_atomic_async_check(struct drm_plane *plane,
> if (!plane->state->fb)
> return -EINVAL;
>
> - if (state->state)
> - crtc_state = drm_atomic_get_existing_crtc_state(state->state,
> - state->crtc);
> + if (state)
> + crtc_state = drm_atomic_get_existing_crtc_state(state,
> + new_plane_state->crtc);
> else /* Special case for asynchronous cursor updates. */
> crtc_state = plane->crtc->state;
>
> @@ -1052,8 +1054,10 @@ static int vop_plane_atomic_async_check(struct drm_plane *plane,
> }
>
> static void vop_plane_atomic_async_update(struct drm_plane *plane,
> - struct drm_plane_state *new_state)
> + struct drm_atomic_state *state)
> {
> + struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
> + plane);
> struct vop *vop = to_vop(plane->state->crtc);
> struct drm_framebuffer *old_fb = plane->state->fb;
>
> diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
> index 6bd8260aa9f2..ff485e58d271 100644
> --- a/drivers/gpu/drm/vc4/vc4_plane.c
> +++ b/drivers/gpu/drm/vc4/vc4_plane.c
> @@ -1118,32 +1118,34 @@ void vc4_plane_async_set_fb(struct drm_plane *plane, struct drm_framebuffer *fb)
> }
>
> static void vc4_plane_atomic_async_update(struct drm_plane *plane,
> - struct drm_plane_state *state)
> + struct drm_atomic_state *state)
> {
> + struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
> + plane);
> struct vc4_plane_state *vc4_state, *new_vc4_state;
>
> - swap(plane->state->fb, state->fb);
> - plane->state->crtc_x = state->crtc_x;
> - plane->state->crtc_y = state->crtc_y;
> - plane->state->crtc_w = state->crtc_w;
> - plane->state->crtc_h = state->crtc_h;
> - plane->state->src_x = state->src_x;
> - plane->state->src_y = state->src_y;
> - plane->state->src_w = state->src_w;
> - plane->state->src_h = state->src_h;
> - plane->state->src_h = state->src_h;
> - plane->state->alpha = state->alpha;
> - plane->state->pixel_blend_mode = state->pixel_blend_mode;
> - plane->state->rotation = state->rotation;
> - plane->state->zpos = state->zpos;
> - plane->state->normalized_zpos = state->normalized_zpos;
> - plane->state->color_encoding = state->color_encoding;
> - plane->state->color_range = state->color_range;
> - plane->state->src = state->src;
> - plane->state->dst = state->dst;
> - plane->state->visible = state->visible;
> + swap(plane->state->fb, new_plane_state->fb);
> + plane->state->crtc_x = new_plane_state->crtc_x;
> + plane->state->crtc_y = new_plane_state->crtc_y;
> + plane->state->crtc_w = new_plane_state->crtc_w;
> + plane->state->crtc_h = new_plane_state->crtc_h;
> + plane->state->src_x = new_plane_state->src_x;
> + plane->state->src_y = new_plane_state->src_y;
> + plane->state->src_w = new_plane_state->src_w;
> + plane->state->src_h = new_plane_state->src_h;
> + plane->state->src_h = new_plane_state->src_h;
> + plane->state->alpha = new_plane_state->alpha;
> + plane->state->pixel_blend_mode = new_plane_state->pixel_blend_mode;
> + plane->state->rotation = new_plane_state->rotation;
> + plane->state->zpos = new_plane_state->zpos;
> + plane->state->normalized_zpos = new_plane_state->normalized_zpos;
> + plane->state->color_encoding = new_plane_state->color_encoding;
> + plane->state->color_range = new_plane_state->color_range;
> + plane->state->src = new_plane_state->src;
> + plane->state->dst = new_plane_state->dst;
> + plane->state->visible = new_plane_state->visible;
>
> - new_vc4_state = to_vc4_plane_state(state);
> + new_vc4_state = to_vc4_plane_state(new_plane_state);
> vc4_state = to_vc4_plane_state(plane->state);
>
> vc4_state->crtc_x = new_vc4_state->crtc_x;
> @@ -1187,23 +1189,25 @@ static void vc4_plane_atomic_async_update(struct drm_plane *plane,
> }
>
> static int vc4_plane_atomic_async_check(struct drm_plane *plane,
> - struct drm_plane_state *state)
> + struct drm_atomic_state *state)
> {
> + struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
> + plane);
> struct vc4_plane_state *old_vc4_state, *new_vc4_state;
> int ret;
> u32 i;
>
> - ret = vc4_plane_mode_set(plane, state);
> + ret = vc4_plane_mode_set(plane, new_plane_state);
> if (ret)
> return ret;
>
> old_vc4_state = to_vc4_plane_state(plane->state);
> - new_vc4_state = to_vc4_plane_state(state);
> + new_vc4_state = to_vc4_plane_state(new_plane_state);
> if (old_vc4_state->dlist_count != new_vc4_state->dlist_count ||
> old_vc4_state->pos0_offset != new_vc4_state->pos0_offset ||
> old_vc4_state->pos2_offset != new_vc4_state->pos2_offset ||
> old_vc4_state->ptr0_offset != new_vc4_state->ptr0_offset ||
> - vc4_lbm_size(plane->state) != vc4_lbm_size(state))
> + vc4_lbm_size(plane->state) != vc4_lbm_size(new_plane_state))
> return -EINVAL;
>
> /* Only pos0, pos2 and ptr0 DWORDS can be updated in an async update
> diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h
> index eb706342861d..2b4d085da450 100644
> --- a/include/drm/drm_modeset_helper_vtables.h
> +++ b/include/drm/drm_modeset_helper_vtables.h
> @@ -1292,9 +1292,9 @@ struct drm_plane_helper_funcs {
> /**
> * @atomic_async_check:
> *
> - * Drivers should set this function pointer to check if the plane state
> - * can be updated in a async fashion. Here async means "not vblank
> - * synchronized".
> + * Drivers should set this function pointer to check if the plane's
> + * atomic state can be updated in a async fashion. Here async means
> + * "not vblank synchronized".
> *
> * This hook is called by drm_atomic_async_check() to establish if a
> * given update can be committed asynchronously, that is, if it can
> @@ -1306,7 +1306,7 @@ struct drm_plane_helper_funcs {
> * can not be applied in asynchronous manner.
> */
> int (*atomic_async_check)(struct drm_plane *plane,
> - struct drm_plane_state *state);
> + struct drm_atomic_state *state);
>
> /**
> * @atomic_async_update:
> @@ -1322,11 +1322,9 @@ struct drm_plane_helper_funcs {
> * update won't happen if there is an outstanding commit modifying
> * the same plane.
> *
> - * Note that unlike &drm_plane_helper_funcs.atomic_update this hook
> - * takes the new &drm_plane_state as parameter. When doing async_update
> - * drivers shouldn't replace the &drm_plane_state but update the
> - * current one with the new plane configurations in the new
> - * plane_state.
> + * When doing async_update drivers shouldn't replace the
> + * &drm_plane_state but update the current one with the new plane
> + * configurations in the new plane_state.
> *
> * Drivers should also swap the framebuffers between current plane
> * state (&drm_plane.state) and new_state.
> @@ -1345,7 +1343,7 @@ struct drm_plane_helper_funcs {
> * for deferring if needed, until a common solution is created.
> */
> void (*atomic_async_update)(struct drm_plane *plane,
> - struct drm_plane_state *new_state);
> + struct drm_atomic_state *state);
> };
>
> /**
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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