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backend/drm: remove mode argument to crtc_pageflip 

Add a new wlr_drm_crtc.pending bitfield which keeps track of pending
output changes. More fields will be added in the future (e.g. active,
gamma).
This commit is contained in:
Simon Ser 2020-05-07 17:11:32 +02:00
parent 7a149fe5ba
commit 69b2279092
5 changed files with 45 additions and 26 deletions
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20
backend/drm/atomic.c
View File

@ -110,23 +110,24 @@ error:
} }
static bool atomic_crtc_pageflip(struct wlr_drm_backend *drm, static bool atomic_crtc_pageflip(struct wlr_drm_backend *drm,
struct wlr_drm_connector *conn, drmModeModeInfo *mode) { struct wlr_drm_connector *conn) {
struct wlr_drm_crtc *crtc = conn->crtc; struct wlr_drm_crtc *crtc = conn->crtc;
if (mode != NULL) { bool modeset = crtc->pending & WLR_DRM_CRTC_MODE;
if (modeset) {
if (crtc->mode_id != 0) { if (crtc->mode_id != 0) {
drmModeDestroyPropertyBlob(drm->fd, crtc->mode_id); drmModeDestroyPropertyBlob(drm->fd, crtc->mode_id);
} }
if (drmModeCreatePropertyBlob(drm->fd, mode, sizeof(*mode), if (drmModeCreatePropertyBlob(drm->fd, &crtc->mode,
&crtc->mode_id)) { sizeof(drmModeModeInfo), &crtc->mode_id)) {
wlr_log_errno(WLR_ERROR, "Unable to create property blob"); wlr_log_errno(WLR_ERROR, "Unable to create mode property blob");
return false; return false;
} }
} }
uint32_t flags = DRM_MODE_PAGE_FLIP_EVENT; uint32_t flags = DRM_MODE_PAGE_FLIP_EVENT;
if (mode != NULL) { if (modeset) {
flags |= DRM_MODE_ATOMIC_ALLOW_MODESET; flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
} else { } else {
flags |= DRM_MODE_ATOMIC_NONBLOCK; flags |= DRM_MODE_ATOMIC_NONBLOCK;
@ -135,7 +136,7 @@ static bool atomic_crtc_pageflip(struct wlr_drm_backend *drm,
struct atomic atom; struct atomic atom;
atomic_begin(crtc, &atom); atomic_begin(crtc, &atom);
atomic_add(&atom, conn->id, conn->props.crtc_id, crtc->id); atomic_add(&atom, conn->id, conn->props.crtc_id, crtc->id);
if (mode != NULL && conn->props.link_status != 0) { if (modeset && conn->props.link_status != 0) {
atomic_add(&atom, conn->id, conn->props.link_status, atomic_add(&atom, conn->id, conn->props.link_status,
DRM_MODE_LINK_STATUS_GOOD); DRM_MODE_LINK_STATUS_GOOD);
} }
@ -151,12 +152,13 @@ static bool atomic_crtc_pageflip(struct wlr_drm_backend *drm,
} }
} }
if (!atomic_end(drm->fd, mode ? DRM_MODE_ATOMIC_ALLOW_MODESET : 0, &atom)) { if (!atomic_end(drm->fd, modeset ? DRM_MODE_ATOMIC_ALLOW_MODESET : 0,
&atom)) {
drmModeAtomicSetCursor(atom.req, 0); drmModeAtomicSetCursor(atom.req, 0);
return false; return false;
} }
if (!atomic_commit(drm->fd, &atom, conn, flags, mode)) { if (!atomic_commit(drm->fd, &atom, conn, flags, modeset)) {
return false; return false;
} }

34
backend/drm/drm.c
View File

@ -334,11 +334,10 @@ static bool drm_connector_attach_render(struct wlr_output *output,
return drm_surface_make_current(&conn->crtc->primary->surf, buffer_age); return drm_surface_make_current(&conn->crtc->primary->surf, buffer_age);
} }
static bool drm_crtc_page_flip(struct wlr_drm_connector *conn, static bool drm_crtc_page_flip(struct wlr_drm_connector *conn) {
struct wlr_drm_mode *mode) { struct wlr_drm_backend *drm =
struct wlr_drm_backend *drm = get_drm_backend_from_backend(conn->output.backend); get_drm_backend_from_backend(conn->output.backend);
struct wlr_drm_crtc *crtc = conn->crtc; struct wlr_drm_crtc *crtc = conn->crtc;
drmModeModeInfo *drm_mode = mode ? &mode->drm_mode : NULL;
if (conn->pageflip_pending) { if (conn->pageflip_pending) {
wlr_log(WLR_ERROR, "Failed to page-flip output '%s': " wlr_log(WLR_ERROR, "Failed to page-flip output '%s': "
@ -346,7 +345,11 @@ static bool drm_crtc_page_flip(struct wlr_drm_connector *conn,
return false; return false;
} }
if (!drm->iface->crtc_pageflip(drm, conn, drm_mode)) { bool ok = drm->iface->crtc_pageflip(drm, conn);
crtc->pending = 0;
if (!ok) {
return false; return false;
} }
@ -454,7 +457,7 @@ static bool drm_connector_commit_buffer(struct wlr_output *output) {
break; break;
} }
if (!drm_crtc_page_flip(conn, NULL)) { if (!drm_crtc_page_flip(conn)) {
drm_fb_clear(&plane->pending_fb); drm_fb_clear(&plane->pending_fb);
return false; return false;
} }
@ -661,8 +664,7 @@ struct wlr_drm_fb *plane_get_next_fb(struct wlr_drm_plane *plane) {
return &plane->current_fb; return &plane->current_fb;
} }
static bool drm_connector_pageflip_renderer(struct wlr_drm_connector *conn, static bool drm_connector_pageflip_renderer(struct wlr_drm_connector *conn) {
struct wlr_drm_mode *mode) {
struct wlr_drm_crtc *crtc = conn->crtc; struct wlr_drm_crtc *crtc = conn->crtc;
if (!crtc) { if (!crtc) {
wlr_log(WLR_ERROR, "Page-flip failed on connector '%s': no CRTC", wlr_log(WLR_ERROR, "Page-flip failed on connector '%s': no CRTC",
@ -679,10 +681,12 @@ static bool drm_connector_pageflip_renderer(struct wlr_drm_connector *conn,
} }
} }
return drm_crtc_page_flip(conn, mode); return drm_crtc_page_flip(conn);
} }
static void drm_connector_start_renderer(struct wlr_drm_connector *conn) { static void drm_connector_start_renderer(struct wlr_drm_connector *conn) {
struct wlr_drm_crtc *crtc = conn->crtc;
if (conn->state != WLR_DRM_CONN_CONNECTED) { if (conn->state != WLR_DRM_CONN_CONNECTED) {
return; return;
} }
@ -690,7 +694,10 @@ static void drm_connector_start_renderer(struct wlr_drm_connector *conn) {
wlr_log(WLR_DEBUG, "Starting renderer on output '%s'", conn->output.name); wlr_log(WLR_DEBUG, "Starting renderer on output '%s'", conn->output.name);
struct wlr_drm_mode *mode = (struct wlr_drm_mode *)conn->output.current_mode; struct wlr_drm_mode *mode = (struct wlr_drm_mode *)conn->output.current_mode;
if (!drm_connector_pageflip_renderer(conn, mode)) { memcpy(&crtc->mode, &mode->drm_mode, sizeof(drmModeModeInfo));
crtc->pending |= WLR_DRM_CRTC_MODE;
if (!drm_connector_pageflip_renderer(conn)) {
wl_event_source_timer_update(conn->retry_pageflip, wl_event_source_timer_update(conn->retry_pageflip,
1000000.0f / conn->output.current_mode->refresh); 1000000.0f / conn->output.current_mode->refresh);
} }
@ -717,6 +724,9 @@ static bool drm_connector_init_renderer(struct wlr_drm_connector *conn,
} }
struct wlr_drm_plane *plane = crtc->primary; struct wlr_drm_plane *plane = crtc->primary;
crtc->pending |= WLR_DRM_CRTC_MODE;
memcpy(&crtc->mode, &mode->drm_mode, sizeof(drmModeModeInfo));
int width = mode->wlr_mode.width; int width = mode->wlr_mode.width;
int height = mode->wlr_mode.height; int height = mode->wlr_mode.height;
uint32_t format = drm->renderer.gbm_format; uint32_t format = drm->renderer.gbm_format;
@ -730,7 +740,7 @@ static bool drm_connector_init_renderer(struct wlr_drm_connector *conn,
} }
if (!drm_plane_init_surface(plane, drm, width, height, format, 0, modifiers) || if (!drm_plane_init_surface(plane, drm, width, height, format, 0, modifiers) ||
!drm_connector_pageflip_renderer(conn, mode)) { !drm_connector_pageflip_renderer(conn)) {
if (!modifiers) { if (!modifiers) {
wlr_log(WLR_ERROR, "Failed to initialize renderer " wlr_log(WLR_ERROR, "Failed to initialize renderer "
"on connector '%s': initial page-flip failed", "on connector '%s': initial page-flip failed",
@ -748,7 +758,7 @@ static bool drm_connector_init_renderer(struct wlr_drm_connector *conn,
0, modifiers)) { 0, modifiers)) {
return false; return false;
} }
if (!drm_connector_pageflip_renderer(conn, mode)) { if (!drm_connector_pageflip_renderer(conn)) {
wlr_log(WLR_ERROR, "Failed to initialize renderer " wlr_log(WLR_ERROR, "Failed to initialize renderer "
"on connector '%s': initial page-flip failed", "on connector '%s': initial page-flip failed",
conn->output.name); conn->output.name);

6
backend/drm/legacy.c
View File

@ -7,7 +7,7 @@
#include "backend/drm/util.h" #include "backend/drm/util.h"
static bool legacy_crtc_pageflip(struct wlr_drm_backend *drm, static bool legacy_crtc_pageflip(struct wlr_drm_backend *drm,
struct wlr_drm_connector *conn, drmModeModeInfo *mode) { struct wlr_drm_connector *conn) {
struct wlr_drm_crtc *crtc = conn->crtc; struct wlr_drm_crtc *crtc = conn->crtc;
struct wlr_drm_plane *cursor = crtc->cursor; struct wlr_drm_plane *cursor = crtc->cursor;
@ -22,9 +22,9 @@ static bool legacy_crtc_pageflip(struct wlr_drm_backend *drm,
return false; return false;
} }
if (mode) { if (crtc->pending & WLR_DRM_CRTC_MODE) {
if (drmModeSetCrtc(drm->fd, crtc->id, fb_id, 0, 0, if (drmModeSetCrtc(drm->fd, crtc->id, fb_id, 0, 0,
&conn->id, 1, mode)) { &conn->id, 1, &crtc->mode)) {
wlr_log_errno(WLR_ERROR, "%s: Failed to set CRTC", conn->output.name); wlr_log_errno(WLR_ERROR, "%s: Failed to set CRTC", conn->output.name);
return false; return false;
} }

7
include/backend/drm/drm.h
View File

@ -42,8 +42,15 @@ struct wlr_drm_plane {
union wlr_drm_plane_props props; union wlr_drm_plane_props props;
}; };
enum wlr_drm_crtc_field {
WLR_DRM_CRTC_MODE = 1 << 0,
};
struct wlr_drm_crtc { struct wlr_drm_crtc {
uint32_t id; uint32_t id;
uint32_t pending; // bitfield of enum wlr_drm_crtc_field
drmModeModeInfo mode;
// Atomic modesetting only // Atomic modesetting only
uint32_t mode_id; uint32_t mode_id;

4
include/backend/drm/iface.h
View File

@ -16,9 +16,9 @@ struct wlr_drm_interface {
// Enable or disable DPMS for connector // Enable or disable DPMS for connector
bool (*conn_enable)(struct wlr_drm_backend *drm, bool (*conn_enable)(struct wlr_drm_backend *drm,
struct wlr_drm_connector *conn, bool enable); struct wlr_drm_connector *conn, bool enable);
// Pageflip on crtc. If mode is non-NULL perform a full modeset using it. // Pageflip on crtc.
bool (*crtc_pageflip)(struct wlr_drm_backend *drm, bool (*crtc_pageflip)(struct wlr_drm_backend *drm,
struct wlr_drm_connector *conn, drmModeModeInfo *mode); struct wlr_drm_connector *conn);
// Enable the cursor buffer on crtc. Set bo to NULL to disable // Enable the cursor buffer on crtc. Set bo to NULL to disable
bool (*crtc_set_cursor)(struct wlr_drm_backend *drm, bool (*crtc_set_cursor)(struct wlr_drm_backend *drm,
struct wlr_drm_crtc *crtc, struct gbm_bo *bo); struct wlr_drm_crtc *crtc, struct gbm_bo *bo);