Remove the simple display pipeline in favor of the regular atomic
helpers in bochs. The simple-pipe helpers are considered deprecated
in DRM.
This effectivly inlines the simple-pipe code for plane and CRTC
support. Instead of a single update helper, there's now a mode-set
helper for the CRTC and an update helper for the plane. The encoder
changes type from NONE ot VIRTUAL.
Removing simple-pipe helpers from bochs will allow for related
cleanups in GEM VRAM helpers.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
---
drivers/gpu/drm/tiny/bochs.c | 177 ++++++++++++++++++++++++++---------
1 file changed, 132 insertions(+), 45 deletions(-)
diff --git a/drivers/gpu/drm/tiny/bochs.c b/drivers/gpu/drm/tiny/bochs.c
index 5679f1b090af..76e29950a807 100644
--- a/drivers/gpu/drm/tiny/bochs.c
+++ b/drivers/gpu/drm/tiny/bochs.c
@@ -4,6 +4,7 @@
#include <linux/pci.h>
#include <drm/drm_aperture.h>
+#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_edid.h>
@@ -14,8 +15,8 @@
#include <drm/drm_gem_vram_helper.h>
#include <drm/drm_managed.h>
#include <drm/drm_module.h>
+#include <drm/drm_plane_helper.h>
#include <drm/drm_probe_helper.h>
-#include <drm/drm_simple_kms_helper.h>
#include <video/vga.h>
@@ -89,7 +90,9 @@ struct bochs_device {
u32 bpp;
/* drm */
- struct drm_simple_display_pipe pipe;
+ struct drm_plane primary_plane;
+ struct drm_crtc crtc;
+ struct drm_encoder encoder;
struct drm_connector connector;
};
@@ -396,11 +399,34 @@ static void bochs_hw_setbase(struct bochs_device *bochs, int x, int y, int strid
/* ---------------------------------------------------------------------- */
-static const uint32_t bochs_formats[] = {
+static const uint32_t bochs_primary_plane_formats[] = {
DRM_FORMAT_XRGB8888,
DRM_FORMAT_BGRX8888,
};
+static int bochs_primary_plane_helper_atomic_check(struct drm_plane *plane,
+ struct drm_atomic_state *state)
+{
+ struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
+ struct drm_crtc *new_crtc = new_plane_state->crtc;
+ struct drm_crtc_state *new_crtc_state = NULL;
+ int ret;
+
+ if (new_crtc)
+ new_crtc_state = drm_atomic_get_new_crtc_state(state, new_crtc);
+
+ ret = drm_atomic_helper_check_plane_state(new_plane_state, new_crtc_state,
+ DRM_PLANE_NO_SCALING,
+ DRM_PLANE_NO_SCALING,
+ false, false);
+ if (ret)
+ return ret;
+ else if (!new_plane_state->visible)
+ return 0;
+
+ return 0;
+}
+
static void bochs_plane_update(struct bochs_device *bochs, struct drm_plane_state *state)
{
struct drm_gem_vram_object *gbo;
@@ -422,37 +448,80 @@ static void bochs_plane_update(struct bochs_device *bochs, struct drm_plane_stat
bochs_hw_setformat(bochs, state->fb->format);
}
-static void bochs_pipe_enable(struct drm_simple_display_pipe *pipe,
- struct drm_crtc_state *crtc_state,
- struct drm_plane_state *plane_state)
+static void bochs_primary_plane_helper_atomic_update(struct drm_plane *plane,
+ struct drm_atomic_state *state)
{
- struct bochs_device *bochs = to_bochs_device(pipe->crtc.dev);
+ struct bochs_device *bochs = to_bochs_device(plane->dev);
+ struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane);
- bochs_hw_setmode(bochs, &crtc_state->mode);
bochs_plane_update(bochs, plane_state);
}
-static void bochs_pipe_disable(struct drm_simple_display_pipe *pipe)
+static const struct drm_plane_helper_funcs bochs_primary_plane_helper_funcs = {
+ DRM_GEM_VRAM_PLANE_HELPER_FUNCS,
+ .atomic_check = bochs_primary_plane_helper_atomic_check,
+ .atomic_update = bochs_primary_plane_helper_atomic_update,
+};
+
+static const struct drm_plane_funcs bochs_primary_plane_funcs = {
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .destroy = drm_plane_cleanup,
+ .reset = drm_atomic_helper_plane_reset,
+ .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
+};
+
+static void bochs_crtc_helper_mode_set_nofb(struct drm_crtc *crtc)
+{
+ struct bochs_device *bochs = to_bochs_device(crtc->dev);
+ struct drm_crtc_state *crtc_state = crtc->state;
+
+ bochs_hw_setmode(bochs, &crtc_state->mode);
+}
+
+static int bochs_crtc_helper_atomic_check(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
{
- struct bochs_device *bochs = to_bochs_device(pipe->crtc.dev);
+ struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
- bochs_hw_blank(bochs, true);
+ if (!crtc_state->enable)
+ return 0;
+
+ return drm_atomic_helper_check_crtc_primary_plane(crtc_state);
+}
+
+static void bochs_crtc_helper_atomic_enable(struct drm_crtc *crtc,
+ struct drm_atomic_state *state)
+{
}
-static void bochs_pipe_update(struct drm_simple_display_pipe *pipe,
- struct drm_plane_state *old_state)
+static void bochs_crtc_helper_atomic_disable(struct drm_crtc *crtc,
+ struct drm_atomic_state *crtc_state)
{
- struct bochs_device *bochs = to_bochs_device(pipe->crtc.dev);
+ struct bochs_device *bochs = to_bochs_device(crtc->dev);
- bochs_plane_update(bochs, pipe->plane.state);
+ bochs_hw_blank(bochs, true);
}
-static const struct drm_simple_display_pipe_funcs bochs_pipe_funcs = {
- .enable = bochs_pipe_enable,
- .disable = bochs_pipe_disable,
- .update = bochs_pipe_update,
- .prepare_fb = drm_gem_vram_simple_display_pipe_prepare_fb,
- .cleanup_fb = drm_gem_vram_simple_display_pipe_cleanup_fb,
+static const struct drm_crtc_helper_funcs bochs_crtc_helper_funcs = {
+ .mode_set_nofb = bochs_crtc_helper_mode_set_nofb,
+ .atomic_check = bochs_crtc_helper_atomic_check,
+ .atomic_enable = bochs_crtc_helper_atomic_enable,
+ .atomic_disable = bochs_crtc_helper_atomic_disable,
+};
+
+static const struct drm_crtc_funcs bochs_crtc_funcs = {
+ .reset = drm_atomic_helper_crtc_reset,
+ .destroy = drm_crtc_cleanup,
+ .set_config = drm_atomic_helper_set_config,
+ .page_flip = drm_atomic_helper_page_flip,
+ .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
+};
+
+static const struct drm_encoder_funcs bochs_encoder_funcs = {
+ .destroy = drm_encoder_cleanup,
};
static int bochs_connector_helper_get_modes(struct drm_connector *connector)
@@ -475,11 +544,11 @@ static int bochs_connector_helper_get_modes(struct drm_connector *connector)
return count;
}
-static const struct drm_connector_helper_funcs bochs_connector_connector_helper_funcs = {
+static const struct drm_connector_helper_funcs bochs_connector_helper_funcs = {
.get_modes = bochs_connector_helper_get_modes,
};
-static const struct drm_connector_funcs bochs_connector_connector_funcs = {
+static const struct drm_connector_funcs bochs_connector_funcs = {
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = drm_connector_cleanup,
.reset = drm_atomic_helper_connector_reset,
@@ -487,18 +556,7 @@ static const struct drm_connector_funcs bochs_connector_connector_funcs = {
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
-static void bochs_connector_init(struct bochs_device *bochs)
-{
- struct drm_device *dev = &bochs->dev;
- struct drm_connector *connector = &bochs->connector;
-
- drm_connector_init(dev, connector, &bochs_connector_connector_funcs,
- DRM_MODE_CONNECTOR_VIRTUAL);
- drm_connector_attach_edid_property(connector);
- drm_connector_helper_add(connector, &bochs_connector_connector_helper_funcs);
-}
-
-static const struct drm_mode_config_funcs bochs_mode_funcs = {
+static const struct drm_mode_config_funcs bochs_mode_config_funcs = {
.fb_create = drm_gem_fb_create,
.mode_valid = drm_vram_helper_mode_valid,
.atomic_check = drm_atomic_helper_check,
@@ -508,6 +566,10 @@ static const struct drm_mode_config_funcs bochs_mode_funcs = {
static int bochs_kms_init(struct bochs_device *bochs)
{
struct drm_device *dev = &bochs->dev;
+ struct drm_plane *primary_plane;
+ struct drm_crtc *crtc;
+ struct drm_connector *connector;
+ struct drm_encoder *encoder;
int ret;
ret = drmm_mode_config_init(dev);
@@ -518,19 +580,44 @@ static int bochs_kms_init(struct bochs_device *bochs)
dev->mode_config.max_height = 8192;
dev->mode_config.preferred_depth = 24;
- dev->mode_config.prefer_shadow = 0;
dev->mode_config.quirk_addfb_prefer_host_byte_order = true;
- dev->mode_config.funcs = &bochs_mode_funcs;
+ dev->mode_config.funcs = &bochs_mode_config_funcs;
- bochs_connector_init(bochs);
- drm_simple_display_pipe_init(dev,
- &bochs->pipe,
- &bochs_pipe_funcs,
- bochs_formats,
- ARRAY_SIZE(bochs_formats),
- NULL,
- &bochs->connector);
+ primary_plane = &bochs->primary_plane;
+ ret = drm_universal_plane_init(dev, primary_plane, 0,
+ &bochs_primary_plane_funcs,
+ bochs_primary_plane_formats,
+ ARRAY_SIZE(bochs_primary_plane_formats),
+ NULL,
+ DRM_PLANE_TYPE_PRIMARY, NULL);
+ if (ret)
+ return ret;
+ drm_plane_helper_add(primary_plane, &bochs_primary_plane_helper_funcs);
+ drm_plane_enable_fb_damage_clips(primary_plane);
+
+ crtc = &bochs->crtc;
+ ret = drm_crtc_init_with_planes(dev, crtc, primary_plane, NULL,
+ &bochs_crtc_funcs, NULL);
+ if (ret)
+ return ret;
+ drm_crtc_helper_add(crtc, &bochs_crtc_helper_funcs);
+
+ encoder = &bochs->encoder;
+ ret = drm_encoder_init(dev, encoder, &bochs_encoder_funcs,
+ DRM_MODE_ENCODER_VIRTUAL, NULL);
+ if (ret)
+ return ret;
+ encoder->possible_crtcs = drm_crtc_mask(crtc);
+
+ connector = &bochs->connector;
+ ret = drm_connector_init(dev, connector, &bochs_connector_funcs,
+ DRM_MODE_CONNECTOR_VIRTUAL);
+ if (ret)
+ return ret;
+ drm_connector_helper_add(connector, &bochs_connector_helper_funcs);
+ drm_connector_attach_edid_property(connector);
+ drm_connector_attach_encoder(connector, encoder);
drm_mode_config_reset(dev);
--
2.46.0
