Replace the simple-KMS helpers with the regular atomic helpers. The
regular helpers are better architectured and therefore allow for easier
code sharing among drivers. No functional changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
---
drivers/gpu/drm/tiny/simpledrm.c | 283 ++++++++++++++++++++-----------
1 file changed, 180 insertions(+), 103 deletions(-)
diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c
index cff9e7f71f80..727ab9d86bcc 100644
--- a/drivers/gpu/drm/tiny/simpledrm.c
+++ b/drivers/gpu/drm/tiny/simpledrm.c
@@ -8,6 +8,7 @@
#include <linux/regulator/consumer.h>
#include <drm/drm_aperture.h>
+#include <drm/drm_atomic.h>
#include <drm/drm_atomic_state_helper.h>
#include <drm/drm_connector.h>
#include <drm/drm_damage_helper.h>
@@ -20,8 +21,8 @@
#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_managed.h>
#include <drm/drm_modeset_helper_vtables.h>
+#include <drm/drm_plane_helper.h>
#include <drm/drm_probe_helper.h>
-#include <drm/drm_simple_kms_helper.h>
#define DRIVER_NAME "simpledrm"
#define DRIVER_DESC "DRM driver for simple-framebuffer platform devices"
@@ -221,8 +222,10 @@ struct simpledrm_device {
/* modesetting */
uint32_t formats[8];
size_t nformats;
+ struct drm_plane primary_plane;
+ struct drm_crtc crtc;
+ struct drm_encoder encoder;
struct drm_connector connector;
- struct drm_simple_display_pipe pipe;
};
static struct simpledrm_device *simpledrm_device_of_dev(struct drm_device *dev)
@@ -460,7 +463,7 @@ static int simpledrm_device_init_regulators(struct simpledrm_device *sdev)
* TODO: Add blit helpers for remaining formats and uncomment
* constants.
*/
-static const uint32_t simpledrm_default_formats[] = {
+static const uint32_t simpledrm_primary_plane_formats[] = {
DRM_FORMAT_XRGB8888,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_RGB565,
@@ -471,73 +474,43 @@ static const uint32_t simpledrm_default_formats[] = {
DRM_FORMAT_ARGB2101010,
};
-static const uint64_t simpledrm_format_modifiers[] = {
+static const uint64_t simpledrm_primary_plane_format_modifiers[] = {
DRM_FORMAT_MOD_LINEAR,
DRM_FORMAT_MOD_INVALID
};
-static int simpledrm_connector_helper_get_modes(struct drm_connector *connector)
+static int simpledrm_primary_plane_helper_atomic_check(struct drm_plane *plane,
+ struct drm_atomic_state *new_state)
{
- struct simpledrm_device *sdev = simpledrm_device_of_dev(connector->dev);
- struct drm_display_mode *mode;
+ struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(new_state, plane);
+ struct drm_crtc_state *new_crtc_state;
+ int ret;
- mode = drm_mode_duplicate(connector->dev, &sdev->mode);
- if (!mode)
+ if (!new_plane_state->fb)
return 0;
- if (mode->name[0] == '\0')
- drm_mode_set_name(mode);
-
- mode->type |= DRM_MODE_TYPE_PREFERRED;
- drm_mode_probed_add(connector, mode);
-
- if (mode->width_mm)
- connector->display_info.width_mm = mode->width_mm;
- if (mode->height_mm)
- connector->display_info.height_mm = mode->height_mm;
-
- return 1;
-}
+ new_crtc_state = drm_atomic_get_new_crtc_state(new_state, new_plane_state->crtc);
-static const struct drm_connector_helper_funcs simpledrm_connector_helper_funcs = {
- .get_modes = simpledrm_connector_helper_get_modes,
-};
-
-static const struct drm_connector_funcs simpledrm_connector_funcs = {
- .reset = drm_atomic_helper_connector_reset,
- .fill_modes = drm_helper_probe_single_connector_modes,
- .destroy = drm_connector_cleanup,
- .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
- .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
-};
-
-static int
-simpledrm_simple_display_pipe_mode_valid(struct drm_simple_display_pipe *pipe,
- const struct drm_display_mode *mode)
-{
- struct simpledrm_device *sdev = simpledrm_device_of_dev(pipe->crtc.dev);
-
- if (mode->hdisplay != sdev->mode.hdisplay &&
- mode->vdisplay != sdev->mode.vdisplay)
- return MODE_ONE_SIZE;
- else if (mode->hdisplay != sdev->mode.hdisplay)
- return MODE_ONE_WIDTH;
- else if (mode->vdisplay != sdev->mode.vdisplay)
- return MODE_ONE_HEIGHT;
+ ret = drm_atomic_helper_check_plane_state(new_plane_state, new_crtc_state,
+ DRM_PLANE_HELPER_NO_SCALING,
+ DRM_PLANE_HELPER_NO_SCALING,
+ false, false);
+ if (ret)
+ return ret;
- return MODE_OK;
+ return 0;
}
-static void
-simpledrm_simple_display_pipe_enable(struct drm_simple_display_pipe *pipe,
- struct drm_crtc_state *crtc_state,
- struct drm_plane_state *plane_state)
+static void simpledrm_primary_plane_helper_atomic_update(struct drm_plane *plane,
+ struct drm_atomic_state *old_state)
{
- struct simpledrm_device *sdev = simpledrm_device_of_dev(pipe->crtc.dev);
+ struct drm_plane_state *plane_state = plane->state;
+ struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(old_state, plane);
struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(plane_state);
- struct drm_framebuffer *fb = plane_state->fb;
void *vmap = shadow_plane_state->data[0].vaddr; /* TODO: Use mapping abstraction */
- struct drm_device *dev = &sdev->dev;
+ struct drm_framebuffer *fb = plane_state->fb;
+ struct drm_device *dev = plane->dev;
+ struct simpledrm_device *sdev = simpledrm_device_of_dev(dev);
void __iomem *dst = sdev->screen_base;
struct drm_rect src_clip, dst_clip;
int idx;
@@ -545,7 +518,8 @@ simpledrm_simple_display_pipe_enable(struct drm_simple_display_pipe *pipe,
if (!fb)
return;
- drm_rect_fp_to_int(&src_clip, &plane_state->src);
+ if (!drm_atomic_helper_damage_merged(old_plane_state, plane_state, &src_clip))
+ return;
dst_clip = plane_state->dst;
if (!drm_rect_intersect(&dst_clip, &src_clip))
@@ -560,11 +534,11 @@ simpledrm_simple_display_pipe_enable(struct drm_simple_display_pipe *pipe,
drm_dev_exit(idx);
}
-static void
-simpledrm_simple_display_pipe_disable(struct drm_simple_display_pipe *pipe)
+static void simpledrm_primary_plane_helper_atomic_disable(struct drm_plane *plane,
+ struct drm_atomic_state *old_state)
{
- struct simpledrm_device *sdev = simpledrm_device_of_dev(pipe->crtc.dev);
- struct drm_device *dev = &sdev->dev;
+ struct drm_device *dev = plane->dev;
+ struct simpledrm_device *sdev = simpledrm_device_of_dev(dev);
int idx;
if (!drm_dev_enter(dev, &idx))
@@ -576,46 +550,120 @@ simpledrm_simple_display_pipe_disable(struct drm_simple_display_pipe *pipe)
drm_dev_exit(idx);
}
-static void
-simpledrm_simple_display_pipe_update(struct drm_simple_display_pipe *pipe,
- struct drm_plane_state *old_plane_state)
+static const struct drm_plane_helper_funcs simpledrm_primary_plane_helper_funcs = {
+ DRM_GEM_SHADOW_PLANE_HELPER_FUNCS,
+ .atomic_check = simpledrm_primary_plane_helper_atomic_check,
+ .atomic_update = simpledrm_primary_plane_helper_atomic_update,
+ .atomic_disable = simpledrm_primary_plane_helper_atomic_disable,
+};
+
+static const struct drm_plane_funcs simpledrm_primary_plane_funcs = {
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
+ .destroy = drm_plane_cleanup,
+ DRM_GEM_SHADOW_PLANE_FUNCS,
+};
+
+static enum drm_mode_status simpledrm_crtc_helper_mode_valid(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode)
{
- struct simpledrm_device *sdev = simpledrm_device_of_dev(pipe->crtc.dev);
- struct drm_plane_state *plane_state = pipe->plane.state;
- struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(plane_state);
- void *vmap = shadow_plane_state->data[0].vaddr; /* TODO: Use mapping abstraction */
- struct drm_framebuffer *fb = plane_state->fb;
- struct drm_device *dev = &sdev->dev;
- void __iomem *dst = sdev->screen_base;
- struct drm_rect src_clip, dst_clip;
- int idx;
+ struct simpledrm_device *sdev = simpledrm_device_of_dev(crtc->dev);
- if (!fb)
- return;
+ if (mode->hdisplay != sdev->mode.hdisplay &&
+ mode->vdisplay != sdev->mode.vdisplay)
+ return MODE_ONE_SIZE;
+ else if (mode->hdisplay != sdev->mode.hdisplay)
+ return MODE_ONE_WIDTH;
+ else if (mode->vdisplay != sdev->mode.vdisplay)
+ return MODE_ONE_HEIGHT;
- if (!drm_atomic_helper_damage_merged(old_plane_state, plane_state, &src_clip))
- return;
+ return MODE_OK;
+}
- dst_clip = plane_state->dst;
- if (!drm_rect_intersect(&dst_clip, &src_clip))
- return;
+static int simpledrm_crtc_helper_atomic_check(struct drm_crtc *crtc,
+ struct drm_atomic_state *new_state)
+{
+ struct drm_crtc_state *new_crtc_state = drm_atomic_get_new_crtc_state(new_state, crtc);
+ int ret;
- if (!drm_dev_enter(dev, &idx))
- return;
+ ret = drm_atomic_helper_check_crtc_state(new_crtc_state, false);
+ if (ret)
+ return ret;
- dst += drm_fb_clip_offset(sdev->pitch, sdev->format, &dst_clip);
- drm_fb_blit_toio(dst, sdev->pitch, sdev->format->format, vmap, fb, &src_clip);
+ return drm_atomic_add_affected_planes(new_state, crtc);
+}
- drm_dev_exit(idx);
+static void simpledrm_crtc_helper_atomic_enable(struct drm_crtc *crtc,
+ struct drm_atomic_state *old_state)
+{
+ /*
+ * Always enabled; screen updates are performed by
+ * the primary plane's atomic_update function.
+ */
+}
+
+static void simpledrm_crtc_helper_atomic_disable(struct drm_crtc *crtc,
+ struct drm_atomic_state *old_state)
+{
+ /*
+ * Always enabled; disabling clears the screen in the
+ * primary plane's atomic_disable function.
+ */
+}
+
+static const struct drm_crtc_helper_funcs simpledrm_crtc_helper_funcs = {
+ .mode_valid = simpledrm_crtc_helper_mode_valid,
+ .atomic_check = simpledrm_crtc_helper_atomic_check,
+ .atomic_enable = simpledrm_crtc_helper_atomic_enable,
+ .atomic_disable = simpledrm_crtc_helper_atomic_disable,
+};
+
+static const struct drm_crtc_funcs simpledrm_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 simpledrm_encoder_funcs = {
+ .destroy = drm_encoder_cleanup,
+};
+
+static int simpledrm_connector_helper_get_modes(struct drm_connector *connector)
+{
+ struct simpledrm_device *sdev = simpledrm_device_of_dev(connector->dev);
+ struct drm_display_mode *mode;
+
+ mode = drm_mode_duplicate(connector->dev, &sdev->mode);
+ if (!mode)
+ return 0;
+
+ if (mode->name[0] == '\0')
+ drm_mode_set_name(mode);
+
+ mode->type |= DRM_MODE_TYPE_PREFERRED;
+ drm_mode_probed_add(connector, mode);
+
+ if (mode->width_mm)
+ connector->display_info.width_mm = mode->width_mm;
+ if (mode->height_mm)
+ connector->display_info.height_mm = mode->height_mm;
+
+ return 1;
}
-static const struct drm_simple_display_pipe_funcs
-simpledrm_simple_display_pipe_funcs = {
- .mode_valid = simpledrm_simple_display_pipe_mode_valid,
- .enable = simpledrm_simple_display_pipe_enable,
- .disable = simpledrm_simple_display_pipe_disable,
- .update = simpledrm_simple_display_pipe_update,
- DRM_GEM_SIMPLE_DISPLAY_PIPE_SHADOW_PLANE_FUNCS,
+static const struct drm_connector_helper_funcs simpledrm_connector_helper_funcs = {
+ .get_modes = simpledrm_connector_helper_get_modes,
+};
+
+static const struct drm_connector_funcs simpledrm_connector_funcs = {
+ .reset = drm_atomic_helper_connector_reset,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .destroy = drm_connector_cleanup,
+ .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
static const struct drm_mode_config_funcs simpledrm_mode_config_funcs = {
@@ -653,10 +701,10 @@ static const uint32_t *simpledrm_device_formats(struct simpledrm_device *sdev,
sdev->nformats = 1;
/* default formats go second */
- for (i = 0; i < ARRAY_SIZE(simpledrm_default_formats); ++i) {
- if (simpledrm_default_formats[i] == sdev->format->format)
+ for (i = 0; i < ARRAY_SIZE(simpledrm_primary_plane_formats); ++i) {
+ if (simpledrm_primary_plane_formats[i] == sdev->format->format)
continue; /* native format already went first */
- sdev->formats[sdev->nformats] = simpledrm_default_formats[i];
+ sdev->formats[sdev->nformats] = simpledrm_primary_plane_formats[i];
sdev->nformats++;
}
@@ -689,8 +737,10 @@ static struct simpledrm_device *simpledrm_device_create(struct drm_driver *drv,
const struct drm_format_info *format;
struct resource *res, *mem;
void __iomem *screen_base;
+ struct drm_plane *primary_plane;
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
struct drm_connector *connector;
- struct drm_simple_display_pipe *pipe;
unsigned long max_width, max_height;
const uint32_t *formats;
size_t nformats;
@@ -802,6 +852,40 @@ static struct simpledrm_device *simpledrm_device_create(struct drm_driver *drv,
dev->mode_config.preferred_depth = format->cpp[0] * 8;
dev->mode_config.funcs = &simpledrm_mode_config_funcs;
+ /* Primary plane */
+
+ formats = simpledrm_device_formats(sdev, &nformats);
+
+ primary_plane = &sdev->primary_plane;
+ ret = drm_universal_plane_init(dev, primary_plane, 0, &simpledrm_primary_plane_funcs,
+ formats, nformats,
+ simpledrm_primary_plane_format_modifiers,
+ DRM_PLANE_TYPE_PRIMARY, NULL);
+ if (ret)
+ return ERR_PTR(ret);
+ drm_plane_helper_add(primary_plane, &simpledrm_primary_plane_helper_funcs);
+ drm_plane_enable_fb_damage_clips(primary_plane);
+
+ /* CRTC */
+
+ crtc = &sdev->crtc;
+ ret = drm_crtc_init_with_planes(dev, crtc, primary_plane, NULL,
+ &simpledrm_crtc_funcs, NULL);
+ if (ret)
+ return ERR_PTR(ret);
+ drm_crtc_helper_add(crtc, &simpledrm_crtc_helper_funcs);
+
+ /* Encoder */
+
+ encoder = &sdev->encoder;
+ ret = drm_encoder_init(dev, encoder, &simpledrm_encoder_funcs,
+ DRM_MODE_ENCODER_NONE, NULL);
+ if (ret)
+ return ERR_PTR(ret);
+ encoder->possible_crtcs = drm_crtc_mask(crtc);
+
+ /* Connector */
+
connector = &sdev->connector;
ret = drm_connector_init(dev, connector, &simpledrm_connector_funcs,
DRM_MODE_CONNECTOR_Unknown);
@@ -812,17 +896,10 @@ static struct simpledrm_device *simpledrm_device_create(struct drm_driver *drv,
DRM_MODE_PANEL_ORIENTATION_UNKNOWN,
width, height);
- formats = simpledrm_device_formats(sdev, &nformats);
-
- pipe = &sdev->pipe;
- ret = drm_simple_display_pipe_init(dev, pipe, &simpledrm_simple_display_pipe_funcs,
- formats, nformats, simpledrm_format_modifiers,
- connector);
+ ret = drm_connector_attach_encoder(connector, encoder);
if (ret)
return ERR_PTR(ret);
- drm_plane_enable_fb_damage_clips(&pipe->plane);
-
drm_mode_config_reset(dev);
return sdev;
--
2.36.1
