Subclass drm_crtc_state so that we can maintain additional state for
our CRTCs.
Add mdp5_pipeline and mdp5_ctl pointers in the subclassed state.
mdp5_pipeline is a grouping of the HW entities that forms the downstream
pipeline for a particular CRTC. It currently contains pointers to
mdp5_interface and mdp5_hw_mixer tied to this CRTC. Later, we will
have 2 hwmixers in this struct. (We could also have 2 intfs if we want
to support dual DSI with Source Split enabled. Implementing that feature
isn't planned at the moment).
The mdp5_pipeline state isn't used at the moment. For now, we just
introduce mdp5_crtc_state and the crtc funcs needed to manage the
subclassed state.
Signed-off-by: Archit Taneja <architt@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c | 72 +++++++++++++++++++++++++++++---
drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h | 14 +++++++
2 files changed, 80 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
index 47a880d71ee1..09ea7c3d8951 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
@@ -645,16 +645,75 @@ static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
return 0;
}
+static void
+mdp5_crtc_atomic_print_state(struct drm_printer *p,
+ const struct drm_crtc_state *state)
+{
+ struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(state);
+ struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
+
+ if (WARN_ON(!pipeline))
+ return;
+
+ drm_printf(p, "\thwmixer=%s\n", pipeline->mixer ?
+ pipeline->mixer->name : "(null)");
+}
+
+static void mdp5_crtc_reset(struct drm_crtc *crtc)
+{
+ struct mdp5_crtc_state *mdp5_cstate;
+
+ if (crtc->state) {
+ __drm_atomic_helper_crtc_destroy_state(crtc->state);
+ kfree(to_mdp5_crtc_state(crtc->state));
+ }
+
+ mdp5_cstate = kzalloc(sizeof(*mdp5_cstate), GFP_KERNEL);
+
+ if (mdp5_cstate) {
+ mdp5_cstate->base.crtc = crtc;
+ crtc->state = &mdp5_cstate->base;
+ }
+}
+
+static struct drm_crtc_state *
+mdp5_crtc_duplicate_state(struct drm_crtc *crtc)
+{
+ struct mdp5_crtc_state *mdp5_cstate;
+
+ if (WARN_ON(!crtc->state))
+ return NULL;
+
+ mdp5_cstate = kmemdup(to_mdp5_crtc_state(crtc->state),
+ sizeof(*mdp5_cstate), GFP_KERNEL);
+ if (!mdp5_cstate)
+ return NULL;
+
+ __drm_atomic_helper_crtc_duplicate_state(crtc, &mdp5_cstate->base);
+
+ return &mdp5_cstate->base;
+}
+
+static void mdp5_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state)
+{
+ struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(state);
+
+ __drm_atomic_helper_crtc_destroy_state(state);
+
+ kfree(mdp5_cstate);
+}
+
static const struct drm_crtc_funcs mdp5_crtc_funcs = {
.set_config = drm_atomic_helper_set_config,
.destroy = mdp5_crtc_destroy,
.page_flip = drm_atomic_helper_page_flip,
.set_property = drm_atomic_helper_crtc_set_property,
- .reset = drm_atomic_helper_crtc_reset,
- .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
- .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
+ .reset = mdp5_crtc_reset,
+ .atomic_duplicate_state = mdp5_crtc_duplicate_state,
+ .atomic_destroy_state = mdp5_crtc_destroy_state,
.cursor_set = mdp5_crtc_cursor_set,
.cursor_move = mdp5_crtc_cursor_move,
+ .atomic_print_state = mdp5_crtc_atomic_print_state,
};
static const struct drm_crtc_funcs mdp5_crtc_no_lm_cursor_funcs = {
@@ -662,9 +721,10 @@ static const struct drm_crtc_funcs mdp5_crtc_no_lm_cursor_funcs = {
.destroy = mdp5_crtc_destroy,
.page_flip = drm_atomic_helper_page_flip,
.set_property = drm_atomic_helper_crtc_set_property,
- .reset = drm_atomic_helper_crtc_reset,
- .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
- .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
+ .reset = mdp5_crtc_reset,
+ .atomic_duplicate_state = mdp5_crtc_duplicate_state,
+ .atomic_destroy_state = mdp5_crtc_destroy_state,
+ .atomic_print_state = mdp5_crtc_atomic_print_state,
};
static const struct drm_crtc_helper_funcs mdp5_crtc_helper_funcs = {
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
index 6452fc115030..b875f453b930 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h
@@ -121,6 +121,20 @@ struct mdp5_plane_state {
#define to_mdp5_plane_state(x) \
container_of(x, struct mdp5_plane_state, base)
+struct mdp5_pipeline {
+ struct mdp5_interface *intf;
+ struct mdp5_hw_mixer *mixer;
+};
+
+struct mdp5_crtc_state {
+ struct drm_crtc_state base;
+
+ struct mdp5_ctl *ctl;
+ struct mdp5_pipeline pipeline;
+};
+#define to_mdp5_crtc_state(x) \
+ container_of(x, struct mdp5_crtc_state, base)
+
enum mdp5_intf_mode {
MDP5_INTF_MODE_NONE = 0,
--
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