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@codeaurora.org --- 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,