wlroots-hyprland/backend/drm/drm.c

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#define _XOPEN_SOURCE 700
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#include <assert.h>
#include <drm_fourcc.h>
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#include <drm_mode.h>
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#include <errno.h>
#include <fcntl.h>
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#include <inttypes.h>
#include <stdint.h>
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
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#include <time.h>
#include <wayland-server-core.h>
#include <wayland-util.h>
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#include <wlr/backend/interface.h>
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#include <wlr/interfaces/wlr_output.h>
#include <wlr/render/wlr_renderer.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/util/box.h>
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#include <wlr/util/log.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include "backend/drm/cvt.h"
#include "backend/drm/drm.h"
#include "backend/drm/iface.h"
#include "backend/drm/util.h"
#include "render/pixel_format.h"
#include "render/drm_format_set.h"
#include "render/swapchain.h"
#include "render/wlr_renderer.h"
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#include "util/env.h"
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// Output state which needs a KMS commit to be applied
static const uint32_t COMMIT_OUTPUT_STATE =
WLR_OUTPUT_STATE_BUFFER |
WLR_OUTPUT_STATE_MODE |
WLR_OUTPUT_STATE_ENABLED |
WLR_OUTPUT_STATE_GAMMA_LUT |
WLR_OUTPUT_STATE_ADAPTIVE_SYNC_ENABLED;
static const uint32_t SUPPORTED_OUTPUT_STATE =
WLR_OUTPUT_STATE_BACKEND_OPTIONAL | COMMIT_OUTPUT_STATE;
bool check_drm_features(struct wlr_drm_backend *drm) {
if (drmGetCap(drm->fd, DRM_CAP_CURSOR_WIDTH, &drm->cursor_width)) {
drm->cursor_width = 64;
}
if (drmGetCap(drm->fd, DRM_CAP_CURSOR_HEIGHT, &drm->cursor_height)) {
drm->cursor_height = 64;
}
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uint64_t cap;
if (drmGetCap(drm->fd, DRM_CAP_PRIME, &cap) ||
!(cap & DRM_PRIME_CAP_IMPORT)) {
wlr_log(WLR_ERROR, "PRIME import not supported");
return false;
}
if (drm->parent) {
if (drmGetCap(drm->parent->fd, DRM_CAP_PRIME, &cap) ||
!(cap & DRM_PRIME_CAP_EXPORT)) {
wlr_log(WLR_ERROR,
"PRIME export not supported on primary GPU");
return false;
}
}
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if (drmSetClientCap(drm->fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1)) {
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wlr_log(WLR_ERROR, "DRM universal planes unsupported");
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return false;
}
if (drmGetCap(drm->fd, DRM_CAP_CRTC_IN_VBLANK_EVENT, &cap) || !cap) {
wlr_log(WLR_ERROR, "DRM_CRTC_IN_VBLANK_EVENT unsupported");
return false;
}
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if (env_parse_bool("WLR_DRM_NO_ATOMIC")) {
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wlr_log(WLR_DEBUG,
"WLR_DRM_NO_ATOMIC set, forcing legacy DRM interface");
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drm->iface = &legacy_iface;
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} else if (drmSetClientCap(drm->fd, DRM_CLIENT_CAP_ATOMIC, 1)) {
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wlr_log(WLR_DEBUG,
"Atomic modesetting unsupported, using legacy DRM interface");
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drm->iface = &legacy_iface;
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} else {
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wlr_log(WLR_DEBUG, "Using atomic DRM interface");
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drm->iface = &atomic_iface;
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}
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int ret = drmGetCap(drm->fd, DRM_CAP_TIMESTAMP_MONOTONIC, &cap);
drm->clock = (ret == 0 && cap == 1) ? CLOCK_MONOTONIC : CLOCK_REALTIME;
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if (env_parse_bool("WLR_DRM_NO_MODIFIERS")) {
wlr_log(WLR_DEBUG, "WLR_DRM_NO_MODIFIERS set, disabling modifiers");
} else {
ret = drmGetCap(drm->fd, DRM_CAP_ADDFB2_MODIFIERS, &cap);
drm->addfb2_modifiers = ret == 0 && cap == 1;
wlr_log(WLR_DEBUG, "ADDFB2 modifiers %s",
drm->addfb2_modifiers ? "supported" : "unsupported");
}
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return true;
}
static bool add_plane(struct wlr_drm_backend *drm,
struct wlr_drm_crtc *crtc, const drmModePlane *drm_plane,
uint32_t type, union wlr_drm_plane_props *props) {
assert(!(type == DRM_PLANE_TYPE_PRIMARY && crtc->primary));
assert(!(type == DRM_PLANE_TYPE_CURSOR && crtc->cursor));
struct wlr_drm_plane *p = calloc(1, sizeof(*p));
if (!p) {
wlr_log_errno(WLR_ERROR, "Allocation failed");
return false;
}
p->type = type;
p->id = drm_plane->plane_id;
p->props = *props;
for (size_t i = 0; i < drm_plane->count_formats; ++i) {
// Force a LINEAR layout for the cursor if the driver doesn't support
// modifiers
wlr_drm_format_set_add(&p->formats, drm_plane->formats[i],
DRM_FORMAT_MOD_LINEAR);
if (type != DRM_PLANE_TYPE_CURSOR) {
wlr_drm_format_set_add(&p->formats, drm_plane->formats[i],
DRM_FORMAT_MOD_INVALID);
}
}
if (p->props.in_formats && drm->addfb2_modifiers) {
uint64_t blob_id;
if (!get_drm_prop(drm->fd, p->id, p->props.in_formats, &blob_id)) {
wlr_log(WLR_ERROR, "Failed to read IN_FORMATS property");
goto error;
}
drmModePropertyBlobRes *blob = drmModeGetPropertyBlob(drm->fd, blob_id);
if (!blob) {
wlr_log(WLR_ERROR, "Failed to read IN_FORMATS blob");
goto error;
}
drmModeFormatModifierIterator iter = {0};
while (drmModeFormatModifierBlobIterNext(blob, &iter)) {
wlr_drm_format_set_add(&p->formats, iter.fmt, iter.mod);
}
drmModeFreePropertyBlob(blob);
}
switch (type) {
case DRM_PLANE_TYPE_PRIMARY:
crtc->primary = p;
break;
case DRM_PLANE_TYPE_CURSOR:
crtc->cursor = p;
break;
default:
abort();
}
return true;
error:
free(p);
return false;
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}
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static bool init_planes(struct wlr_drm_backend *drm) {
drmModePlaneRes *plane_res = drmModeGetPlaneResources(drm->fd);
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if (!plane_res) {
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wlr_log_errno(WLR_ERROR, "Failed to get DRM plane resources");
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return false;
}
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wlr_log(WLR_INFO, "Found %"PRIu32" DRM planes", plane_res->count_planes);
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for (uint32_t i = 0; i < plane_res->count_planes; ++i) {
uint32_t id = plane_res->planes[i];
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drmModePlane *plane = drmModeGetPlane(drm->fd, id);
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if (!plane) {
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wlr_log_errno(WLR_ERROR, "Failed to get DRM plane");
goto error;
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}
union wlr_drm_plane_props props = {0};
if (!get_drm_plane_props(drm->fd, id, &props)) {
drmModeFreePlane(plane);
goto error;
}
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uint64_t type;
if (!get_drm_prop(drm->fd, id, props.type, &type)) {
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drmModeFreePlane(plane);
goto error;
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}
// We don't really care about overlay planes, as we don't support them
// yet.
if (type == DRM_PLANE_TYPE_OVERLAY) {
drmModeFreePlane(plane);
continue;
}
assert(drm->num_crtcs <= 32);
struct wlr_drm_crtc *crtc = NULL;
for (size_t j = 0; j < drm->num_crtcs ; j++) {
uint32_t crtc_bit = 1 << j;
if ((plane->possible_crtcs & crtc_bit) == 0) {
continue;
}
struct wlr_drm_crtc *candidate = &drm->crtcs[j];
if ((type == DRM_PLANE_TYPE_PRIMARY && !candidate->primary) ||
(type == DRM_PLANE_TYPE_CURSOR && !candidate->cursor)) {
crtc = candidate;
break;
}
}
if (!crtc) {
drmModeFreePlane(plane);
continue;
}
if (!add_plane(drm, crtc, plane, type, &props)) {
drmModeFreePlane(plane);
goto error;
}
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drmModeFreePlane(plane);
}
drmModeFreePlaneResources(plane_res);
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return true;
error:
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drmModeFreePlaneResources(plane_res);
return false;
}
bool init_drm_resources(struct wlr_drm_backend *drm) {
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drmModeRes *res = drmModeGetResources(drm->fd);
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if (!res) {
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wlr_log_errno(WLR_ERROR, "Failed to get DRM resources");
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return false;
}
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wlr_log(WLR_INFO, "Found %d DRM CRTCs", res->count_crtcs);
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drm->num_crtcs = res->count_crtcs;
if (drm->num_crtcs == 0) {
drmModeFreeResources(res);
return true;
}
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drm->crtcs = calloc(drm->num_crtcs, sizeof(drm->crtcs[0]));
if (!drm->crtcs) {
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wlr_log_errno(WLR_ERROR, "Allocation failed");
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goto error_res;
}
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
struct wlr_drm_crtc *crtc = &drm->crtcs[i];
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crtc->id = res->crtcs[i];
crtc->legacy_crtc = drmModeGetCrtc(drm->fd, crtc->id);
get_drm_crtc_props(drm->fd, crtc->id, &crtc->props);
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}
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if (!init_planes(drm)) {
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goto error_crtcs;
}
drmModeFreeResources(res);
return true;
error_crtcs:
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free(drm->crtcs);
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error_res:
drmModeFreeResources(res);
return false;
}
void finish_drm_resources(struct wlr_drm_backend *drm) {
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if (!drm) {
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return;
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}
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
struct wlr_drm_crtc *crtc = &drm->crtcs[i];
drmModeFreeCrtc(crtc->legacy_crtc);
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if (crtc->mode_id) {
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drmModeDestroyPropertyBlob(drm->fd, crtc->mode_id);
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}
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if (crtc->gamma_lut) {
drmModeDestroyPropertyBlob(drm->fd, crtc->gamma_lut);
}
if (crtc->primary) {
wlr_drm_format_set_finish(&crtc->primary->formats);
free(crtc->primary);
}
if (crtc->cursor) {
wlr_drm_format_set_finish(&crtc->cursor->formats);
free(crtc->cursor);
}
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}
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free(drm->crtcs);
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}
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static struct wlr_drm_connector *get_drm_connector_from_output(
struct wlr_output *wlr_output) {
assert(wlr_output_is_drm(wlr_output));
return (struct wlr_drm_connector *)wlr_output;
}
static bool drm_crtc_commit(struct wlr_drm_connector *conn,
const struct wlr_drm_connector_state *state,
uint32_t flags, bool test_only) {
// Disallow atomic-only flags
assert((flags & ~DRM_MODE_PAGE_FLIP_FLAGS) == 0);
struct wlr_drm_backend *drm = conn->backend;
struct wlr_drm_crtc *crtc = conn->crtc;
bool ok = drm->iface->crtc_commit(conn, state, flags, test_only);
if (ok && !test_only) {
drm_fb_clear(&crtc->primary->queued_fb);
if (state->primary_fb != NULL) {
crtc->primary->queued_fb = drm_fb_lock(state->primary_fb);
}
if (crtc->cursor != NULL) {
drm_fb_move(&crtc->cursor->queued_fb, &conn->cursor_pending_fb);
}
} else {
// The set_cursor() hook is a bit special: it's not really synchronized
// to commit() or test(). Once set_cursor() returns true, the new
// cursor is effectively committed. So don't roll it back here, or we
// risk ending up in a state where we don't have a cursor FB but
// wlr_drm_connector.cursor_enabled is true.
// TODO: fix our output interface to avoid this issue.
}
return ok;
}
static void drm_connector_state_init(struct wlr_drm_connector_state *state,
struct wlr_drm_connector *conn,
const struct wlr_output_state *base) {
memset(state, 0, sizeof(*state));
state->base = base;
state->modeset = base->allow_artifacts;
state->active = (base->committed & WLR_OUTPUT_STATE_ENABLED) ?
base->enabled : conn->output.enabled;
if (base->committed & WLR_OUTPUT_STATE_MODE) {
switch (base->mode_type) {
case WLR_OUTPUT_STATE_MODE_FIXED:;
struct wlr_drm_mode *mode =
wl_container_of(base->mode, mode, wlr_mode);
state->mode = mode->drm_mode;
break;
case WLR_OUTPUT_STATE_MODE_CUSTOM:
generate_cvt_mode(&state->mode, base->custom_mode.width,
base->custom_mode.height,
(float)base->custom_mode.refresh / 1000, false, false);
state->mode.type = DRM_MODE_TYPE_USERDEF;
break;
}
} else if (state->active) {
struct wlr_drm_mode *mode =
wl_container_of(conn->output.current_mode, mode, wlr_mode);
assert(mode != NULL);
state->mode = mode->drm_mode;
}
if (conn->crtc != NULL) {
struct wlr_drm_plane *primary = conn->crtc->primary;
if (primary->queued_fb != NULL) {
state->primary_fb = drm_fb_lock(primary->queued_fb);
} else if (primary->current_fb != NULL) {
state->primary_fb = drm_fb_lock(primary->current_fb);
}
}
}
static void drm_connector_state_finish(struct wlr_drm_connector_state *state) {
drm_fb_clear(&state->primary_fb);
}
static bool drm_connector_state_update_primary_fb(struct wlr_drm_connector *conn,
struct wlr_drm_connector_state *state) {
struct wlr_drm_backend *drm = conn->backend;
assert(state->base->committed & WLR_OUTPUT_STATE_BUFFER);
struct wlr_drm_crtc *crtc = conn->crtc;
assert(crtc != NULL);
struct wlr_drm_plane *plane = crtc->primary;
struct wlr_buffer *source_buf = state->base->buffer;
struct wlr_buffer *local_buf;
if (drm->parent) {
struct wlr_drm_format *format =
drm_plane_pick_render_format(plane, &drm->mgpu_renderer);
if (format == NULL) {
wlr_log(WLR_ERROR, "Failed to pick primary plane format");
return false;
}
// TODO: fallback to modifier-less buffer allocation
bool ok = init_drm_surface(&plane->mgpu_surf, &drm->mgpu_renderer,
source_buf->width, source_buf->height, format);
free(format);
if (!ok) {
return false;
}
local_buf = drm_surface_blit(&plane->mgpu_surf, source_buf);
if (local_buf == NULL) {
return false;
}
} else {
local_buf = wlr_buffer_lock(source_buf);
}
bool ok = drm_fb_import(&state->primary_fb, drm, local_buf,
&plane->formats);
wlr_buffer_unlock(local_buf);
if (!ok) {
wlr_drm_conn_log(conn, WLR_DEBUG,
"Failed to import buffer for scan-out");
return false;
}
return true;
}
static bool drm_connector_alloc_crtc(struct wlr_drm_connector *conn);
static bool drm_connector_test(struct wlr_output *output,
const struct wlr_output_state *state) {
struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
if (!conn->backend->session->active) {
return false;
}
uint32_t unsupported = state->committed & ~SUPPORTED_OUTPUT_STATE;
if (unsupported != 0) {
wlr_log(WLR_DEBUG, "Unsupported output state fields: 0x%"PRIx32,
unsupported);
return false;
}
if ((state->committed & COMMIT_OUTPUT_STATE) == 0) {
// This commit doesn't change the KMS state
return true;
}
if ((state->committed & WLR_OUTPUT_STATE_ENABLED) && state->enabled) {
if (output->current_mode == NULL &&
!(state->committed & WLR_OUTPUT_STATE_MODE)) {
wlr_drm_conn_log(conn, WLR_DEBUG,
"Can't enable an output without a mode");
return false;
}
}
bool ok = false;
struct wlr_drm_connector_state pending = {0};
drm_connector_state_init(&pending, conn, state);
if (pending.active) {
if ((state->committed &
(WLR_OUTPUT_STATE_ENABLED | WLR_OUTPUT_STATE_MODE)) &&
!(state->committed & WLR_OUTPUT_STATE_BUFFER)) {
wlr_drm_conn_log(conn, WLR_DEBUG,
"Can't enable an output without a buffer");
goto out;
}
if (!drm_connector_alloc_crtc(conn)) {
wlr_drm_conn_log(conn, WLR_DEBUG,
"No CRTC available for this connector");
goto out;
}
}
if ((state->committed & WLR_OUTPUT_ADAPTIVE_SYNC_ENABLED) &&
state->adaptive_sync_enabled &&
!drm_connector_supports_vrr(conn)) {
goto out;
}
if (conn->backend->parent) {
// If we're running as a secondary GPU, we can't perform an atomic
// commit without blitting a buffer.
ok = true;
goto out;
}
backend/drm: return true on test if no crtc This should fix the following backtrace, seen on my desktop with one output disabled: #0 atomic_crtc_commit (conn=0x270f5c0, state=0x270f6d0, flags=0, test_only=<optimized out>) at ../backend/drm/atomic.c:178 drm = 0x1ae9c10 output = 0x270f5c0 crtc = 0x0 modeset = false active = false mode_id = 43989232 gamma_lut = 0 prev_vrr_enabled = <optimized out> vrr_enabled = <optimized out> atom = {req = 0x270f5c0, failed = 48} ok = <optimized out> #1 0x00007f1104f33128 in drm_crtc_commit (conn=conn@entry=0x270f5c0, state=state@entry=0x270f6d0, flags=flags@entry=0, test_only=test_only@entry=true) at ../backend/drm/drm.c:339 __PRETTY_FUNCTION__ = "drm_crtc_commit" drm = <optimized out> crtc = 0x0 ok = <optimized out> #2 0x00007f1104f34e6c in drm_connector_test (output=output@entry=0x270f5c0) at ../backend/drm/drm.c:488 conn = 0x270f5c0 unsupported = <optimized out> #3 0x00007f1104f35424 in drm_connector_commit (output=0x270f5c0) at ../backend/drm/drm.c:578 conn = 0x270f5c0 #4 0x00007f1104f600b7 in wlr_output_commit (output=output@entry=0x270f5c0) at ../types/wlr_output.c:837 now = {tv_sec = 7732, tv_nsec = 623813006} pre_event = {output = 0x270f5c0, when = 0x7ffecc1be570} back_buffer = 0x0 scale_updated = <optimized out> geometry_updated = <optimized out> committed = <optimized out> event = {output = 0x0, committed = 4401048, when = 0x29f38f0} #5 0x0000000000433047 in apply_output_config (oc=oc@entry=0x29f38f0, output=output@entry=0x2710720) at ../sway/config/output.c:431 wlr_output = 0x270f5c0 output_box = <optimized out> #6 0x0000000000433aaf in apply_output_config_to_outputs (oc=0x2308400) at ../sway/config/output.c:649 current = 0x29f38f0 name = <optimized out> wildcard = true id = "Dell Inc. DELL U2410 F525M9AK0MML\000\060\060\060ACD7\000\000\000\000\000\000\000\220\063\240\002\000\000\000\000L5C\000\000\000\000\000\377\377\377\377\000\000\000\000\377\377\377\377\000\000\000\000\377\377\377\377\000\000\000\000\377\377\377\377\000\000\000\000\355\240E\000\000\000\000\000\377\377\377\377\000\000\000\000@\206+\002\000\000\000\000`\260.\002\000\000\000" sway_output = 0x2710720 tmp = 0x2242030 seat = <optimized out> #7 0x000000000043df6b in cmd_output (argc=<optimized out>, argv=0x2a03390) at ../sway/commands/output.c:108 error = <optimized out> output = <optimized out> background = false #8 0x0000000000410304 in execute_command (_exec=_exec@entry=0x2975d20 "output * dpms off", seat=0x22a3280, seat@entry=0x0, con=con@entry=0x0) at ../sway/commands.c:291 res = <optimized out> argc = 4 argv = 0x2a03370 handler = 0x479230 <handlers+560> cmd = <optimized out> matched_delim = 0 '\000' containers = 0x0 using_criteria = false __PRETTY_FUNCTION__ = "execute_command" exec = 0x28f63c0 "output * dpms off" head = 0x0 res_list = 0x2a2e9d0 #9 0x0000000000418b65 in ipc_client_handle_command (client=client@entry=0x2a6ac80, payload_length=<optimized out>, payload_type=IPC_COMMAND) at ../sway/ipc-server.c:645 line = <optimized out> res_list = <optimized out> json = <optimized out> length = <optimized out> __PRETTY_FUNCTION__ = "ipc_client_handle_command" buf = 0x2975d20 "output * dpms off" #10 0x000000000041964c in ipc_client_handle_readable (client_fd=<optimized out>, mask=<optimized out>, data=0x2a6ac80) at ../sway/ipc-server.c:267 pending_length = <optimized out> pending_type = <optimized out> client = 0x2a6ac80 read_available = 31 buf = "i3-ipc\021\000\000\000\000\000\000" received = 14 #11 0x00007f1104fc3492 in wl_event_loop_dispatch () from /nix/store/ridk7k2ka6dbk4ly7qqjgmc523s4fj89-wayland-1.19.0/lib/libwayland-server.so.0 No symbol table info available. #12 0x00007f1104fc1135 in wl_display_run () from /nix/store/ridk7k2ka6dbk4ly7qqjgmc523s4fj89-wayland-1.19.0/lib/libwayland-server.so.0 No symbol table info available. #13 0x000000000041ac10 in server_run (server=server@entry=0x47b0c0 <server>) at ../sway/server.c:261 No locals. #14 0x000000000041a3fc in main (argc=<optimized out>, argv=0x7ffecc1bec68) at ../sway/main.c:395 verbose = 0 debug = 0 validate = 0 allow_unsupported_gpu = 0 long_options = {{name = 0x45b516 "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x45ee69 "config", has_arg = 1, flag = 0x0, val = 99}, {name = 0x45b51b "validate", has_arg = 0, flag = 0x0, val = 67}, { name = 0x45b524 "debug", has_arg = 0, flag = 0x0, val = 100}, {name = 0x45b3ac "version", has_arg = 0, flag = 0x0, val = 118}, {name = 0x45a55c "verbose", has_arg = 0, flag = 0x0, val = 86}, {name = 0x45b52a "get-socketpath", has_arg = 0, flag = 0x0, val = 112}, {name = 0x45b539 "unsupported-gpu", has_arg = 0, flag = 0x0, val = 117}, {name = 0x45b549 "my-next-gpu-wont-be-nvidia", has_arg = 0, flag = 0x0, val = 117}, {name = 0x0, has_arg = 0, flag = 0x0, val = 0}} config_path = 0x0 usage = 0x45b830 "Usage: sway [options] [command]\n\n -h, --help", ' ' <repeats 13 times>, "Show help message and quit.\n -c, --config <config> Specify a config file.\n -C, --validate Check the validity of the config file, th"... c = <optimized out> where the second output is not enabled: (gdb) frame 4 #4 0x00007f1104f600b7 in wlr_output_commit (output=output@entry=0x270f5c0) at ../types/wlr_output.c:837 837 in ../types/wlr_output.c (gdb) p output->enabled $3 = false (gdb) The culprit being that since 604674dc54a3b2cb4b73de267c8c2bcae259c4b6 we always try to perform a commit, even on a disabled output.
2021-08-16 18:52:30 +02:00
if (!conn->crtc) {
// If the output is disabled, we don't have a crtc even after
// reallocation
ok = true;
goto out;
backend/drm: return true on test if no crtc This should fix the following backtrace, seen on my desktop with one output disabled: #0 atomic_crtc_commit (conn=0x270f5c0, state=0x270f6d0, flags=0, test_only=<optimized out>) at ../backend/drm/atomic.c:178 drm = 0x1ae9c10 output = 0x270f5c0 crtc = 0x0 modeset = false active = false mode_id = 43989232 gamma_lut = 0 prev_vrr_enabled = <optimized out> vrr_enabled = <optimized out> atom = {req = 0x270f5c0, failed = 48} ok = <optimized out> #1 0x00007f1104f33128 in drm_crtc_commit (conn=conn@entry=0x270f5c0, state=state@entry=0x270f6d0, flags=flags@entry=0, test_only=test_only@entry=true) at ../backend/drm/drm.c:339 __PRETTY_FUNCTION__ = "drm_crtc_commit" drm = <optimized out> crtc = 0x0 ok = <optimized out> #2 0x00007f1104f34e6c in drm_connector_test (output=output@entry=0x270f5c0) at ../backend/drm/drm.c:488 conn = 0x270f5c0 unsupported = <optimized out> #3 0x00007f1104f35424 in drm_connector_commit (output=0x270f5c0) at ../backend/drm/drm.c:578 conn = 0x270f5c0 #4 0x00007f1104f600b7 in wlr_output_commit (output=output@entry=0x270f5c0) at ../types/wlr_output.c:837 now = {tv_sec = 7732, tv_nsec = 623813006} pre_event = {output = 0x270f5c0, when = 0x7ffecc1be570} back_buffer = 0x0 scale_updated = <optimized out> geometry_updated = <optimized out> committed = <optimized out> event = {output = 0x0, committed = 4401048, when = 0x29f38f0} #5 0x0000000000433047 in apply_output_config (oc=oc@entry=0x29f38f0, output=output@entry=0x2710720) at ../sway/config/output.c:431 wlr_output = 0x270f5c0 output_box = <optimized out> #6 0x0000000000433aaf in apply_output_config_to_outputs (oc=0x2308400) at ../sway/config/output.c:649 current = 0x29f38f0 name = <optimized out> wildcard = true id = "Dell Inc. DELL U2410 F525M9AK0MML\000\060\060\060ACD7\000\000\000\000\000\000\000\220\063\240\002\000\000\000\000L5C\000\000\000\000\000\377\377\377\377\000\000\000\000\377\377\377\377\000\000\000\000\377\377\377\377\000\000\000\000\377\377\377\377\000\000\000\000\355\240E\000\000\000\000\000\377\377\377\377\000\000\000\000@\206+\002\000\000\000\000`\260.\002\000\000\000" sway_output = 0x2710720 tmp = 0x2242030 seat = <optimized out> #7 0x000000000043df6b in cmd_output (argc=<optimized out>, argv=0x2a03390) at ../sway/commands/output.c:108 error = <optimized out> output = <optimized out> background = false #8 0x0000000000410304 in execute_command (_exec=_exec@entry=0x2975d20 "output * dpms off", seat=0x22a3280, seat@entry=0x0, con=con@entry=0x0) at ../sway/commands.c:291 res = <optimized out> argc = 4 argv = 0x2a03370 handler = 0x479230 <handlers+560> cmd = <optimized out> matched_delim = 0 '\000' containers = 0x0 using_criteria = false __PRETTY_FUNCTION__ = "execute_command" exec = 0x28f63c0 "output * dpms off" head = 0x0 res_list = 0x2a2e9d0 #9 0x0000000000418b65 in ipc_client_handle_command (client=client@entry=0x2a6ac80, payload_length=<optimized out>, payload_type=IPC_COMMAND) at ../sway/ipc-server.c:645 line = <optimized out> res_list = <optimized out> json = <optimized out> length = <optimized out> __PRETTY_FUNCTION__ = "ipc_client_handle_command" buf = 0x2975d20 "output * dpms off" #10 0x000000000041964c in ipc_client_handle_readable (client_fd=<optimized out>, mask=<optimized out>, data=0x2a6ac80) at ../sway/ipc-server.c:267 pending_length = <optimized out> pending_type = <optimized out> client = 0x2a6ac80 read_available = 31 buf = "i3-ipc\021\000\000\000\000\000\000" received = 14 #11 0x00007f1104fc3492 in wl_event_loop_dispatch () from /nix/store/ridk7k2ka6dbk4ly7qqjgmc523s4fj89-wayland-1.19.0/lib/libwayland-server.so.0 No symbol table info available. #12 0x00007f1104fc1135 in wl_display_run () from /nix/store/ridk7k2ka6dbk4ly7qqjgmc523s4fj89-wayland-1.19.0/lib/libwayland-server.so.0 No symbol table info available. #13 0x000000000041ac10 in server_run (server=server@entry=0x47b0c0 <server>) at ../sway/server.c:261 No locals. #14 0x000000000041a3fc in main (argc=<optimized out>, argv=0x7ffecc1bec68) at ../sway/main.c:395 verbose = 0 debug = 0 validate = 0 allow_unsupported_gpu = 0 long_options = {{name = 0x45b516 "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x45ee69 "config", has_arg = 1, flag = 0x0, val = 99}, {name = 0x45b51b "validate", has_arg = 0, flag = 0x0, val = 67}, { name = 0x45b524 "debug", has_arg = 0, flag = 0x0, val = 100}, {name = 0x45b3ac "version", has_arg = 0, flag = 0x0, val = 118}, {name = 0x45a55c "verbose", has_arg = 0, flag = 0x0, val = 86}, {name = 0x45b52a "get-socketpath", has_arg = 0, flag = 0x0, val = 112}, {name = 0x45b539 "unsupported-gpu", has_arg = 0, flag = 0x0, val = 117}, {name = 0x45b549 "my-next-gpu-wont-be-nvidia", has_arg = 0, flag = 0x0, val = 117}, {name = 0x0, has_arg = 0, flag = 0x0, val = 0}} config_path = 0x0 usage = 0x45b830 "Usage: sway [options] [command]\n\n -h, --help", ' ' <repeats 13 times>, "Show help message and quit.\n -c, --config <config> Specify a config file.\n -C, --validate Check the validity of the config file, th"... c = <optimized out> where the second output is not enabled: (gdb) frame 4 #4 0x00007f1104f600b7 in wlr_output_commit (output=output@entry=0x270f5c0) at ../types/wlr_output.c:837 837 in ../types/wlr_output.c (gdb) p output->enabled $3 = false (gdb) The culprit being that since 604674dc54a3b2cb4b73de267c8c2bcae259c4b6 we always try to perform a commit, even on a disabled output.
2021-08-16 18:52:30 +02:00
}
if (state->committed & WLR_OUTPUT_STATE_BUFFER) {
if (!drm_connector_state_update_primary_fb(conn, &pending)) {
goto out;
}
}
ok = drm_crtc_commit(conn, &pending, 0, true);
out:
drm_connector_state_finish(&pending);
return ok;
2020-04-02 12:41:19 +02:00
}
bool drm_connector_supports_vrr(struct wlr_drm_connector *conn) {
struct wlr_drm_backend *drm = conn->backend;
struct wlr_drm_crtc *crtc = conn->crtc;
if (!crtc) {
return false;
}
uint64_t vrr_capable;
if (conn->props.vrr_capable == 0 ||
!get_drm_prop(drm->fd, conn->id, conn->props.vrr_capable,
&vrr_capable) || !vrr_capable) {
wlr_drm_conn_log(conn, WLR_DEBUG, "Failed to enable adaptive sync: "
"connector doesn't support VRR");
return false;
}
if (crtc->props.vrr_enabled == 0) {
wlr_drm_conn_log(conn, WLR_DEBUG, "Failed to enable adaptive sync: "
"CRTC %"PRIu32" doesn't support VRR", crtc->id);
return false;
}
return true;
}
bool drm_connector_commit_state(struct wlr_drm_connector *conn,
const struct wlr_output_state *base) {
struct wlr_drm_backend *drm = conn->backend;
2020-04-02 12:41:19 +02:00
if (!drm->session->active) {
return false;
}
if ((base->committed & COMMIT_OUTPUT_STATE) == 0) {
// This commit doesn't change the KMS state
return true;
}
bool ok = false;
struct wlr_drm_connector_state pending = {0};
drm_connector_state_init(&pending, conn, base);
if (!pending.active && conn->crtc == NULL) {
// Disabling an already-disabled connector
ok = true;
goto out;
}
if (pending.active) {
if (!drm_connector_alloc_crtc(conn)) {
wlr_drm_conn_log(conn, WLR_ERROR,
"No CRTC available for this connector");
goto out;
}
}
uint32_t flags = 0;
if (pending.base->committed & WLR_OUTPUT_STATE_BUFFER) {
if (!drm_connector_state_update_primary_fb(conn, &pending)) {
goto out;
}
flags |= DRM_MODE_PAGE_FLIP_EVENT;
// wlr_drm_interface.crtc_commit will perform either a non-blocking
// page-flip, either a blocking modeset. When performing a blocking modeset
// we'll wait for all queued page-flips to complete, so we don't need this
// safeguard.
if (conn->pending_page_flip_crtc && !pending.modeset) {
wlr_drm_conn_log(conn, WLR_ERROR, "Failed to page-flip output: "
"a page-flip is already pending");
goto out;
}
}
if (pending.modeset && pending.active) {
flags |= DRM_MODE_PAGE_FLIP_EVENT;
}
2022-11-10 12:28:53 +01:00
if (pending.modeset) {
if (pending.active) {
wlr_drm_conn_log(conn, WLR_INFO, "Modesetting with %dx%d @ %.3f Hz",
pending.mode.hdisplay, pending.mode.vdisplay,
(float)calculate_refresh_rate(&pending.mode) / 1000);
} else {
wlr_drm_conn_log(conn, WLR_INFO, "Turning off");
}
2022-11-10 12:28:53 +01:00
}
ok = drm_crtc_commit(conn, &pending, flags, false);
if (!ok) {
goto out;
}
if (pending.base->committed & WLR_OUTPUT_STATE_MODE) {
struct wlr_output_mode *mode = NULL;
switch (pending.base->mode_type) {
case WLR_OUTPUT_STATE_MODE_FIXED:
mode = pending.base->mode;
break;
case WLR_OUTPUT_STATE_MODE_CUSTOM:
mode = wlr_drm_connector_add_mode(&conn->output, &pending.mode);
break;
}
wlr_output_update_mode(&conn->output, mode);
}
if (flags & DRM_MODE_PAGE_FLIP_EVENT) {
conn->pending_page_flip_crtc = conn->crtc->id;
// wlr_output's API guarantees that submitting a buffer will schedule a
// frame event. However the DRM backend will also schedule a frame event
// when performing a modeset. Set frame_pending to true so that
// wlr_output_schedule_frame doesn't trigger a synthetic frame event.
conn->output.frame_pending = true;
}
out:
drm_connector_state_finish(&pending);
return ok;
}
static bool drm_connector_commit(struct wlr_output *output,
const struct wlr_output_state *state) {
struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
if (!drm_connector_test(output, state)) {
return false;
}
return drm_connector_commit_state(conn, state);
}
size_t drm_crtc_get_gamma_lut_size(struct wlr_drm_backend *drm,
struct wlr_drm_crtc *crtc) {
if (crtc->props.gamma_lut_size == 0 || drm->iface == &legacy_iface) {
return (size_t)crtc->legacy_crtc->gamma_size;
}
uint64_t gamma_lut_size;
if (!get_drm_prop(drm->fd, crtc->id, crtc->props.gamma_lut_size,
&gamma_lut_size)) {
wlr_log(WLR_ERROR, "Unable to get gamma lut size");
return 0;
}
return gamma_lut_size;
}
static size_t drm_connector_get_gamma_size(struct wlr_output *output) {
2018-09-17 22:25:20 +02:00
struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
struct wlr_drm_backend *drm = conn->backend;
struct wlr_drm_crtc *crtc = conn->crtc;
if (crtc == NULL) {
return 0;
}
return drm_crtc_get_gamma_lut_size(drm, crtc);
}
struct wlr_drm_fb *get_next_cursor_fb(struct wlr_drm_connector *conn) {
if (!conn->cursor_enabled || conn->crtc == NULL) {
return NULL;
}
if (conn->cursor_pending_fb != NULL) {
return conn->cursor_pending_fb;
}
if (conn->crtc->cursor->queued_fb != NULL) {
return conn->crtc->cursor->queued_fb;
}
return conn->crtc->cursor->current_fb;
}
static void realloc_crtcs(struct wlr_drm_backend *drm,
struct wlr_drm_connector *want_conn);
backend/drm: steal CRTCs from disabled outputs This commit allows outputs that need a CRTC to steal it from user-disabled outputs. Note that in the case there are enough CRTCs, disabled outputs don't loose it (so there's no modeset and plane initialization needed after DPMS). CRTC allocation still prefers to keep the old configuration, even if that means allocating an extra CRTC to a disabled output. CRTC reallocation now happen when enabling/disabling an output as well as when trying to modeset. When enabling an output without a CRTC, we realloc to try to steal a CRTC from a disabled output (that doesn't really need the CRTC). When disabling an output, we try to give our CRTC to an output that needs one. Modesetting is similar to enabling. A new DRM connector field has been added: `desired_enabled`. Outputs without CRTCs get automatically disabled. This field keeps track of the state desired by the user, allowing to automatically re-enable outputs when a CRTC becomes free. This required some changes to the allocation algorithm. Previously, the algorithm tried to keep the previous configuration even if a new configuration with a better score was possible (it only changed configuration when the old one didn't work anymore). This is now changed and the old configuration (still preferred) is only retained without considering new possibilities when it's perfect (all outputs have CRTCs). User-disabled outputs now have `possible_crtcs` set to 0, meaning they can only retain a previous CRTC (not acquire a new one). The allocation algorithm has been updated to do not bump the score when assigning a CRTC to a disabled output.
2018-09-10 23:35:22 +02:00
static bool drm_connector_alloc_crtc(struct wlr_drm_connector *conn) {
if (conn->crtc == NULL) {
realloc_crtcs(conn->backend, conn);
}
return conn->crtc != NULL;
}
static struct wlr_drm_mode *drm_mode_create(const drmModeModeInfo *modeinfo) {
struct wlr_drm_mode *mode = calloc(1, sizeof(*mode));
if (!mode) {
return NULL;
}
mode->drm_mode = *modeinfo;
mode->wlr_mode.width = mode->drm_mode.hdisplay;
mode->wlr_mode.height = mode->drm_mode.vdisplay;
mode->wlr_mode.refresh = calculate_refresh_rate(modeinfo);
mode->wlr_mode.picture_aspect_ratio = get_picture_aspect_ratio(modeinfo);
if (modeinfo->type & DRM_MODE_TYPE_PREFERRED) {
mode->wlr_mode.preferred = true;
}
return mode;
}
struct wlr_output_mode *wlr_drm_connector_add_mode(struct wlr_output *output,
const drmModeModeInfo *modeinfo) {
2018-09-17 22:25:20 +02:00
struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
if (modeinfo->type != DRM_MODE_TYPE_USERDEF) {
return NULL;
}
struct wlr_output_mode *wlr_mode;
wl_list_for_each(wlr_mode, &conn->output.modes, link) {
struct wlr_drm_mode *mode = wl_container_of(wlr_mode, mode, wlr_mode);
if (memcmp(&mode->drm_mode, modeinfo, sizeof(*modeinfo)) == 0) {
return wlr_mode;
}
}
struct wlr_drm_mode *mode = drm_mode_create(modeinfo);
if (!mode) {
return NULL;
}
wl_list_insert(&conn->output.modes, &mode->wlr_mode.link);
wlr_drm_conn_log(conn, WLR_INFO, "Registered custom mode "
"%"PRId32"x%"PRId32"@%"PRId32,
mode->wlr_mode.width, mode->wlr_mode.height,
mode->wlr_mode.refresh);
return &mode->wlr_mode;
}
2018-04-21 12:42:18 +02:00
static bool drm_connector_set_cursor(struct wlr_output *output,
struct wlr_buffer *buffer, int hotspot_x, int hotspot_y) {
2018-09-17 22:25:20 +02:00
struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
struct wlr_drm_backend *drm = conn->backend;
struct wlr_drm_crtc *crtc = conn->crtc;
2018-01-21 20:57:24 +01:00
if (!crtc) {
return false;
}
2017-06-26 09:32:36 +02:00
struct wlr_drm_plane *plane = crtc->cursor;
if (plane == NULL) {
return false;
2017-08-06 11:38:40 +02:00
}
2017-06-26 09:32:36 +02:00
if (conn->cursor_hotspot_x != hotspot_x ||
conn->cursor_hotspot_y != hotspot_y) {
// Update cursor hotspot
conn->cursor_x -= hotspot_x - conn->cursor_hotspot_x;
conn->cursor_y -= hotspot_y - conn->cursor_hotspot_y;
conn->cursor_hotspot_x = hotspot_x;
conn->cursor_hotspot_y = hotspot_y;
wlr_output_update_needs_frame(output);
}
conn->cursor_enabled = false;
if (buffer != NULL) {
if ((uint64_t)buffer->width != drm->cursor_width ||
(uint64_t)buffer->height != drm->cursor_height) {
wlr_drm_conn_log(conn, WLR_DEBUG, "Cursor buffer size mismatch");
return false;
}
2017-06-26 07:34:15 +02:00
struct wlr_buffer *local_buf;
if (drm->parent) {
struct wlr_drm_format *format =
drm_plane_pick_render_format(plane, &drm->mgpu_renderer);
if (format == NULL) {
wlr_log(WLR_ERROR, "Failed to pick cursor plane format");
return false;
}
2018-05-09 20:58:18 +02:00
bool ok = init_drm_surface(&plane->mgpu_surf, &drm->mgpu_renderer,
buffer->width, buffer->height, format);
free(format);
if (!ok) {
return false;
}
local_buf = drm_surface_blit(&plane->mgpu_surf, buffer);
if (local_buf == NULL) {
return false;
}
} else {
local_buf = wlr_buffer_lock(buffer);
}
bool ok = drm_fb_import(&conn->cursor_pending_fb, drm, local_buf,
&plane->formats);
wlr_buffer_unlock(local_buf);
if (!ok) {
return false;
}
conn->cursor_enabled = true;
conn->cursor_width = buffer->width;
conn->cursor_height = buffer->height;
}
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wlr_output_update_needs_frame(output);
return true;
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}
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static bool drm_connector_move_cursor(struct wlr_output *output,
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int x, int y) {
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struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
if (!conn->crtc) {
return false;
}
struct wlr_drm_plane *plane = conn->crtc->cursor;
if (!plane) {
return false;
}
struct wlr_box box = { .x = x, .y = y };
int width, height;
wlr_output_transformed_resolution(output, &width, &height);
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enum wl_output_transform transform =
wlr_output_transform_invert(output->transform);
wlr_box_transform(&box, &box, transform, width, height);
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box.x -= conn->cursor_hotspot_x;
box.y -= conn->cursor_hotspot_y;
conn->cursor_x = box.x;
conn->cursor_y = box.y;
wlr_output_update_needs_frame(output);
return true;
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}
bool drm_connector_is_cursor_visible(struct wlr_drm_connector *conn) {
return conn->cursor_enabled &&
conn->cursor_x < conn->output.width &&
conn->cursor_y < conn->output.height &&
conn->cursor_x + conn->cursor_width >= 0 &&
conn->cursor_y + conn->cursor_height >= 0;
}
static void dealloc_crtc(struct wlr_drm_connector *conn);
/**
* Destroy the compositor-facing part of a connector.
*
* The connector isn't destroyed when disconnected. Only the compositor-facing
* wlr_output interface is cleaned up.
*/
static void drm_connector_destroy_output(struct wlr_output *output) {
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struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
dealloc_crtc(conn);
conn->status = DRM_MODE_DISCONNECTED;
conn->pending_page_flip_crtc = 0;
drm_fb_clear(&conn->cursor_pending_fb);
struct wlr_drm_mode *mode, *mode_tmp;
wl_list_for_each_safe(mode, mode_tmp, &conn->output.modes, wlr_mode.link) {
wl_list_remove(&mode->wlr_mode.link);
free(mode);
}
memset(&conn->output, 0, sizeof(struct wlr_output));
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}
static const struct wlr_drm_format_set *drm_connector_get_cursor_formats(
struct wlr_output *output, uint32_t buffer_caps) {
if (!(buffer_caps & WLR_BUFFER_CAP_DMABUF)) {
return NULL;
}
struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
if (!drm_connector_alloc_crtc(conn)) {
return NULL;
}
struct wlr_drm_plane *plane = conn->crtc->cursor;
if (!plane) {
return NULL;
}
if (conn->backend->parent) {
return &conn->backend->mgpu_formats;
}
return &plane->formats;
}
static void drm_connector_get_cursor_size(struct wlr_output *output,
int *width, int *height) {
struct wlr_drm_backend *drm = get_drm_backend_from_backend(output->backend);
*width = (int)drm->cursor_width;
*height = (int)drm->cursor_height;
}
static const struct wlr_drm_format_set *drm_connector_get_primary_formats(
struct wlr_output *output, uint32_t buffer_caps) {
if (!(buffer_caps & WLR_BUFFER_CAP_DMABUF)) {
return NULL;
}
struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
if (!drm_connector_alloc_crtc(conn)) {
return NULL;
}
if (conn->backend->parent) {
return &conn->backend->mgpu_formats;
}
return &conn->crtc->primary->formats;
}
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static const struct wlr_output_impl output_impl = {
.set_cursor = drm_connector_set_cursor,
.move_cursor = drm_connector_move_cursor,
.destroy = drm_connector_destroy_output,
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.test = drm_connector_test,
.commit = drm_connector_commit,
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.get_gamma_size = drm_connector_get_gamma_size,
.get_cursor_formats = drm_connector_get_cursor_formats,
.get_cursor_size = drm_connector_get_cursor_size,
.get_primary_formats = drm_connector_get_primary_formats,
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};
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bool wlr_output_is_drm(struct wlr_output *output) {
return output->impl == &output_impl;
}
uint32_t wlr_drm_connector_get_id(struct wlr_output *output) {
struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
return conn->id;
}
enum wl_output_transform wlr_drm_connector_get_panel_orientation(
struct wlr_output *output) {
struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
if (conn->props.panel_orientation) {
return WL_OUTPUT_TRANSFORM_NORMAL;
}
char *orientation = get_drm_prop_enum(conn->backend->fd, conn->id,
conn->props.panel_orientation);
if (orientation == NULL) {
return WL_OUTPUT_TRANSFORM_NORMAL;
}
enum wl_output_transform tr;
if (strcmp(orientation, "Normal") == 0) {
tr = WL_OUTPUT_TRANSFORM_NORMAL;
} else if (strcmp(orientation, "Left Side Up") == 0) {
tr = WL_OUTPUT_TRANSFORM_90;
} else if (strcmp(orientation, "Upside Down") == 0) {
tr = WL_OUTPUT_TRANSFORM_180;
} else if (strcmp(orientation, "Right Side Up") == 0) {
tr = WL_OUTPUT_TRANSFORM_270;
} else {
wlr_drm_conn_log(conn, WLR_ERROR, "Unknown panel orientation: %s", orientation);
tr = WL_OUTPUT_TRANSFORM_NORMAL;
}
free(orientation);
return tr;
}
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static const int32_t subpixel_map[] = {
[DRM_MODE_SUBPIXEL_UNKNOWN] = WL_OUTPUT_SUBPIXEL_UNKNOWN,
[DRM_MODE_SUBPIXEL_HORIZONTAL_RGB] = WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB,
[DRM_MODE_SUBPIXEL_HORIZONTAL_BGR] = WL_OUTPUT_SUBPIXEL_HORIZONTAL_BGR,
[DRM_MODE_SUBPIXEL_VERTICAL_RGB] = WL_OUTPUT_SUBPIXEL_VERTICAL_RGB,
[DRM_MODE_SUBPIXEL_VERTICAL_BGR] = WL_OUTPUT_SUBPIXEL_VERTICAL_BGR,
[DRM_MODE_SUBPIXEL_NONE] = WL_OUTPUT_SUBPIXEL_NONE,
};
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static void dealloc_crtc(struct wlr_drm_connector *conn) {
struct wlr_drm_backend *drm = conn->backend;
if (conn->crtc == NULL) {
return;
}
wlr_drm_conn_log(conn, WLR_DEBUG, "De-allocating CRTC %zu",
conn->crtc - drm->crtcs);
struct wlr_output_state state = {
.committed = WLR_OUTPUT_STATE_ENABLED,
.allow_artifacts = true,
.enabled = false,
};
if (!drm_connector_commit_state(conn, &state)) {
// On GPU unplug, disabling the CRTC can fail with EPERM
wlr_drm_conn_log(conn, WLR_ERROR, "Failed to disable CRTC %"PRIu32,
conn->crtc->id);
}
drm_plane_finish_surface(conn->crtc->primary);
drm_plane_finish_surface(conn->crtc->cursor);
conn->cursor_enabled = false;
conn->crtc = NULL;
}
static void realloc_crtcs(struct wlr_drm_backend *drm,
struct wlr_drm_connector *want_conn) {
assert(drm->num_crtcs > 0);
size_t num_outputs = wl_list_length(&drm->outputs);
if (num_outputs == 0) {
return;
backend/drm: steal CRTCs from disabled outputs This commit allows outputs that need a CRTC to steal it from user-disabled outputs. Note that in the case there are enough CRTCs, disabled outputs don't loose it (so there's no modeset and plane initialization needed after DPMS). CRTC allocation still prefers to keep the old configuration, even if that means allocating an extra CRTC to a disabled output. CRTC reallocation now happen when enabling/disabling an output as well as when trying to modeset. When enabling an output without a CRTC, we realloc to try to steal a CRTC from a disabled output (that doesn't really need the CRTC). When disabling an output, we try to give our CRTC to an output that needs one. Modesetting is similar to enabling. A new DRM connector field has been added: `desired_enabled`. Outputs without CRTCs get automatically disabled. This field keeps track of the state desired by the user, allowing to automatically re-enable outputs when a CRTC becomes free. This required some changes to the allocation algorithm. Previously, the algorithm tried to keep the previous configuration even if a new configuration with a better score was possible (it only changed configuration when the old one didn't work anymore). This is now changed and the old configuration (still preferred) is only retained without considering new possibilities when it's perfect (all outputs have CRTCs). User-disabled outputs now have `possible_crtcs` set to 0, meaning they can only retain a previous CRTC (not acquire a new one). The allocation algorithm has been updated to do not bump the score when assigning a CRTC to a disabled output.
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}
wlr_log(WLR_DEBUG, "Reallocating CRTCs");
struct wlr_drm_connector *connectors[num_outputs];
uint32_t connector_constraints[num_outputs];
uint32_t previous_match[drm->num_crtcs];
uint32_t new_match[drm->num_crtcs];
for (size_t i = 0; i < drm->num_crtcs; ++i) {
previous_match[i] = UNMATCHED;
}
wlr_log(WLR_DEBUG, "State before reallocation:");
size_t i = 0;
struct wlr_drm_connector *conn;
wl_list_for_each(conn, &drm->outputs, link) {
backend/drm: steal CRTCs from disabled outputs This commit allows outputs that need a CRTC to steal it from user-disabled outputs. Note that in the case there are enough CRTCs, disabled outputs don't loose it (so there's no modeset and plane initialization needed after DPMS). CRTC allocation still prefers to keep the old configuration, even if that means allocating an extra CRTC to a disabled output. CRTC reallocation now happen when enabling/disabling an output as well as when trying to modeset. When enabling an output without a CRTC, we realloc to try to steal a CRTC from a disabled output (that doesn't really need the CRTC). When disabling an output, we try to give our CRTC to an output that needs one. Modesetting is similar to enabling. A new DRM connector field has been added: `desired_enabled`. Outputs without CRTCs get automatically disabled. This field keeps track of the state desired by the user, allowing to automatically re-enable outputs when a CRTC becomes free. This required some changes to the allocation algorithm. Previously, the algorithm tried to keep the previous configuration even if a new configuration with a better score was possible (it only changed configuration when the old one didn't work anymore). This is now changed and the old configuration (still preferred) is only retained without considering new possibilities when it's perfect (all outputs have CRTCs). User-disabled outputs now have `possible_crtcs` set to 0, meaning they can only retain a previous CRTC (not acquire a new one). The allocation algorithm has been updated to do not bump the score when assigning a CRTC to a disabled output.
2018-09-10 23:35:22 +02:00
connectors[i] = conn;
if (conn->crtc) {
previous_match[conn->crtc - drm->crtcs] = i;
}
// Only request a CRTC if the connected is currently enabled or it's the
// connector the user wants to enable
bool want_crtc = conn == want_conn || conn->output.enabled;
wlr_log(WLR_DEBUG, " '%s': crtc=%d status=%s want_crtc=%d",
conn->name, conn->crtc ? (int)(conn->crtc - drm->crtcs) : -1,
drm_connector_status_str(conn->status), want_crtc);
if (conn->status == DRM_MODE_CONNECTED && want_crtc) {
connector_constraints[i] = conn->possible_crtcs;
} else {
// Will always fail to match anything
connector_constraints[i] = 0;
}
++i;
}
match_obj(num_outputs, connector_constraints,
drm->num_crtcs, previous_match, new_match);
// Converts our crtc=>connector result into a connector=>crtc one.
ssize_t connector_match[num_outputs];
for (size_t i = 0 ; i < num_outputs; ++i) {
connector_match[i] = -1;
}
for (size_t i = 0; i < drm->num_crtcs; ++i) {
if (new_match[i] != UNMATCHED) {
connector_match[new_match[i]] = i;
}
}
/*
* In the case that we add a new connector (hotplug) and we fail to
* match everything, we prefer to fail the new connector and keep all
* of the old mappings instead.
*/
for (size_t i = 0; i < num_outputs; ++i) {
struct wlr_drm_connector *conn = connectors[i];
if (conn->status == DRM_MODE_CONNECTED && conn->output.enabled &&
connector_match[i] == -1) {
wlr_log(WLR_DEBUG, "Could not match a CRTC for previously connected output; "
"keeping old configuration");
return;
}
}
wlr_log(WLR_DEBUG, "State after reallocation:");
// Apply new configuration
for (size_t i = 0; i < num_outputs; ++i) {
struct wlr_drm_connector *conn = connectors[i];
bool prev_enabled = conn->crtc;
wlr_log(WLR_DEBUG, " '%s': crtc=%zd",
conn->name, connector_match[i]);
// We don't need to change anything.
if (prev_enabled && connector_match[i] == conn->crtc - drm->crtcs) {
continue;
}
dealloc_crtc(conn);
if (connector_match[i] == -1) {
if (prev_enabled) {
wlr_drm_conn_log(conn, WLR_DEBUG, "Output has lost its CRTC");
wlr_output_update_enabled(&conn->output, false);
wlr_output_update_mode(&conn->output, NULL);
}
continue;
}
conn->crtc = &drm->crtcs[connector_match[i]];
}
}
static struct wlr_drm_crtc *connector_get_current_crtc(
struct wlr_drm_connector *wlr_conn, const drmModeConnector *drm_conn) {
struct wlr_drm_backend *drm = wlr_conn->backend;
uint32_t crtc_id = 0;
if (wlr_conn->props.crtc_id != 0) {
uint64_t value;
if (!get_drm_prop(drm->fd, wlr_conn->id,
wlr_conn->props.crtc_id, &value)) {
wlr_drm_conn_log(wlr_conn, WLR_ERROR,
"Failed to get CRTC_ID connector property");
return NULL;
}
crtc_id = (uint32_t)value;
} else if (drm_conn->encoder_id != 0) {
// Fallback to the legacy API
drmModeEncoder *enc = drmModeGetEncoder(drm->fd, drm_conn->encoder_id);
if (enc == NULL) {
wlr_drm_conn_log(wlr_conn, WLR_ERROR,
"drmModeGetEncoder() failed");
return NULL;
}
crtc_id = enc->crtc_id;
drmModeFreeEncoder(enc);
}
if (crtc_id == 0) {
return NULL;
}
for (size_t i = 0; i < drm->num_crtcs; ++i) {
if (drm->crtcs[i].id == crtc_id) {
return &drm->crtcs[i];
}
}
wlr_drm_conn_log(wlr_conn, WLR_ERROR,
"Failed to find current CRTC ID %" PRIu32, crtc_id);
return NULL;
}
static struct wlr_drm_connector *create_drm_connector(struct wlr_drm_backend *drm,
const drmModeConnector *drm_conn) {
struct wlr_drm_connector *wlr_conn = calloc(1, sizeof(*wlr_conn));
if (!wlr_conn) {
wlr_log_errno(WLR_ERROR, "Allocation failed");
return NULL;
}
wlr_conn->backend = drm;
wlr_conn->status = DRM_MODE_DISCONNECTED;
wlr_conn->id = drm_conn->connector_id;
const char *conn_name =
drmModeGetConnectorTypeName(drm_conn->connector_type);
if (conn_name == NULL) {
conn_name = "Unknown";
}
snprintf(wlr_conn->name, sizeof(wlr_conn->name),
"%s-%"PRIu32, conn_name, drm_conn->connector_type_id);
wlr_conn->possible_crtcs =
drmModeConnectorGetPossibleCrtcs(drm->fd, drm_conn);
if (wlr_conn->possible_crtcs == 0) {
wlr_drm_conn_log(wlr_conn, WLR_ERROR, "No CRTC possible");
}
wlr_conn->crtc = connector_get_current_crtc(wlr_conn, drm_conn);
wl_list_insert(drm->outputs.prev, &wlr_conn->link);
return wlr_conn;
}
static drmModeModeInfo *connector_get_current_mode(
struct wlr_drm_connector *wlr_conn, const drmModeConnector *drm_conn) {
struct wlr_drm_backend *drm = wlr_conn->backend;
if (wlr_conn->crtc == NULL) {
return NULL;
}
if (wlr_conn->crtc->props.mode_id != 0) {
size_t size = 0;
drmModeModeInfo *mode = get_drm_prop_blob(drm->fd, wlr_conn->crtc->id,
wlr_conn->crtc->props.mode_id, &size);
assert(mode == NULL || size == sizeof(*mode));
return mode;
} else {
// Fallback to the legacy API
if (!wlr_conn->crtc->legacy_crtc->mode_valid) {
return NULL;
}
drmModeModeInfo *mode = malloc(sizeof(*mode));
if (mode == NULL) {
wlr_log_errno(WLR_ERROR, "Allocation failed");
return NULL;
}
*mode = wlr_conn->crtc->legacy_crtc->mode;
return mode;
}
}
static void connect_drm_connector(struct wlr_drm_connector *wlr_conn,
const drmModeConnector *drm_conn) {
struct wlr_drm_backend *drm = wlr_conn->backend;
wlr_log(WLR_DEBUG, "Current CRTC: %d",
wlr_conn->crtc ? (int)wlr_conn->crtc->id : -1);
wlr_output_init(&wlr_conn->output, &drm->backend, &output_impl,
drm->display);
wlr_output_set_name(&wlr_conn->output, wlr_conn->name);
wlr_conn->output.phys_width = drm_conn->mmWidth;
wlr_conn->output.phys_height = drm_conn->mmHeight;
wlr_log(WLR_INFO, "Physical size: %"PRId32"x%"PRId32,
wlr_conn->output.phys_width, wlr_conn->output.phys_height);
wlr_conn->output.subpixel = subpixel_map[drm_conn->subpixel];
get_drm_connector_props(drm->fd, wlr_conn->id, &wlr_conn->props);
uint64_t non_desktop;
if (get_drm_prop(drm->fd, wlr_conn->id,
wlr_conn->props.non_desktop, &non_desktop)) {
if (non_desktop == 1) {
wlr_log(WLR_INFO, "Non-desktop connector");
}
wlr_conn->output.non_desktop = non_desktop;
}
wlr_conn->max_bpc = 0;
if (wlr_conn->props.max_bpc != 0) {
if (!introspect_drm_prop_range(drm->fd, wlr_conn->props.max_bpc,
NULL, &wlr_conn->max_bpc)) {
wlr_log(WLR_ERROR, "Failed to introspect 'max bpc' property");
}
}
size_t edid_len = 0;
uint8_t *edid = get_drm_prop_blob(drm->fd,
wlr_conn->id, wlr_conn->props.edid, &edid_len);
parse_edid(wlr_conn, edid_len, edid);
free(edid);
char *subconnector = NULL;
if (wlr_conn->props.subconnector) {
subconnector = get_drm_prop_enum(drm->fd,
wlr_conn->id, wlr_conn->props.subconnector);
}
if (subconnector && strcmp(subconnector, "Native") == 0) {
free(subconnector);
subconnector = NULL;
}
struct wlr_output *output = &wlr_conn->output;
char description[128];
snprintf(description, sizeof(description), "%s %s%s%s (%s%s%s)",
output->make, output->model,
output->serial ? " " : "",
output->serial ? output->serial : "",
output->name,
subconnector ? " via " : "",
subconnector ? subconnector : "");
wlr_output_set_description(output, description);
free(subconnector);
// Before iterating on the conn's modes, get the current KMS mode
// in use from the connector's CRTC.
drmModeModeInfo *current_modeinfo =
connector_get_current_mode(wlr_conn, drm_conn);
wlr_log(WLR_INFO, "Detected modes:");
for (int i = 0; i < drm_conn->count_modes; ++i) {
if (drm_conn->modes[i].flags & DRM_MODE_FLAG_INTERLACE) {
continue;
}
struct wlr_drm_mode *mode = drm_mode_create(&drm_conn->modes[i]);
if (!mode) {
wlr_log_errno(WLR_ERROR, "Allocation failed");
continue;
}
// If this is the current mode set on the conn's crtc,
// then set it as the conn's output current mode.
if (current_modeinfo != NULL && memcmp(&mode->drm_mode,
current_modeinfo, sizeof(*current_modeinfo)) == 0) {
// Update width, height, refresh, transform_matrix and current_mode
// of this connector's output.
wlr_output_update_mode(&wlr_conn->output, &mode->wlr_mode);
uint64_t mode_id = 0;
get_drm_prop(drm->fd, wlr_conn->crtc->id,
wlr_conn->crtc->props.mode_id, &mode_id);
wlr_conn->crtc->mode_id = mode_id;
}
2022-11-10 12:28:34 +01:00
wlr_log(WLR_INFO, " %"PRId32"x%"PRId32" @ %.3f Hz %s",
mode->wlr_mode.width, mode->wlr_mode.height,
2022-11-10 12:28:34 +01:00
(float)mode->wlr_mode.refresh / 1000,
mode->wlr_mode.preferred ? "(preferred)" : "");
wl_list_insert(wlr_conn->output.modes.prev, &mode->wlr_mode.link);
}
free(current_modeinfo);
wlr_output_update_enabled(&wlr_conn->output, wlr_conn->crtc != NULL);
wlr_conn->status = DRM_MODE_CONNECTED;
}
static void disconnect_drm_connector(struct wlr_drm_connector *conn);
void scan_drm_connectors(struct wlr_drm_backend *drm,
struct wlr_device_hotplug_event *event) {
if (event != NULL && event->connector_id != 0) {
wlr_log(WLR_INFO, "Scanning DRM connector %"PRIu32" on %s",
event->connector_id, drm->name);
} else {
wlr_log(WLR_INFO, "Scanning DRM connectors on %s", drm->name);
}
2017-09-30 11:22:26 +02:00
drmModeRes *res = drmModeGetResources(drm->fd);
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if (!res) {
2018-07-09 23:49:54 +02:00
wlr_log_errno(WLR_ERROR, "Failed to get DRM resources");
2017-05-03 12:40:19 +02:00
return;
}
2017-05-01 05:20:48 +02:00
size_t seen_len = wl_list_length(&drm->outputs);
// +1 so length can never be 0, which is undefined behaviour.
// Last element isn't used.
bool seen[seen_len + 1];
memset(seen, false, sizeof(seen));
size_t new_outputs_len = 0;
struct wlr_drm_connector *new_outputs[res->count_connectors + 1];
2017-05-03 12:40:19 +02:00
for (int i = 0; i < res->count_connectors; ++i) {
uint32_t conn_id = res->connectors[i];
ssize_t index = -1;
struct wlr_drm_connector *c, *wlr_conn = NULL;
wl_list_for_each(c, &drm->outputs, link) {
index++;
if (c->id == conn_id) {
wlr_conn = c;
break;
}
}
// If the hotplug event contains a connector ID, ignore any other
// connector.
if (event != NULL && event->connector_id != 0 &&
event->connector_id != conn_id) {
if (wlr_conn != NULL) {
seen[index] = true;
}
continue;
}
drmModeConnector *drm_conn = drmModeGetConnector(drm->fd, conn_id);
if (!drm_conn) {
wlr_log_errno(WLR_ERROR, "Failed to get DRM connector");
continue;
}
if (!wlr_conn) {
wlr_conn = create_drm_connector(drm, drm_conn);
if (wlr_conn == NULL) {
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continue;
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}
wlr_log(WLR_INFO, "Found connector '%s'", wlr_conn->name);
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} else {
seen[index] = true;
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}
// This can only happen *after* hotplug, since we haven't read the
// connector properties yet
if (wlr_conn->props.link_status != 0) {
uint64_t link_status;
if (!get_drm_prop(drm->fd, wlr_conn->id,
wlr_conn->props.link_status, &link_status)) {
wlr_drm_conn_log(wlr_conn, WLR_ERROR,
"Failed to get link status prop");
continue;
}
if (link_status == DRM_MODE_LINK_STATUS_BAD) {
// We need to reload our list of modes and force a modeset
wlr_drm_conn_log(wlr_conn, WLR_INFO, "Bad link detected");
disconnect_drm_connector(wlr_conn);
}
}
if (wlr_conn->status == DRM_MODE_DISCONNECTED &&
drm_conn->connection == DRM_MODE_CONNECTED) {
wlr_log(WLR_INFO, "'%s' connected", wlr_conn->name);
connect_drm_connector(wlr_conn, drm_conn);
new_outputs[new_outputs_len++] = wlr_conn;
} else if (wlr_conn->status == DRM_MODE_CONNECTED &&
drm_conn->connection != DRM_MODE_CONNECTED) {
wlr_log(WLR_INFO, "'%s' disconnected", wlr_conn->name);
disconnect_drm_connector(wlr_conn);
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}
drmModeFreeConnector(drm_conn);
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}
drmModeFreeResources(res);
// Iterate in reverse order because we'll remove items from the list and
// still want indices to remain correct.
struct wlr_drm_connector *conn, *tmp_conn;
size_t index = wl_list_length(&drm->outputs);
wl_list_for_each_reverse_safe(conn, tmp_conn, &drm->outputs, link) {
index--;
if (index >= seen_len || seen[index]) {
continue;
}
wlr_log(WLR_INFO, "'%s' disappeared", conn->name);
destroy_drm_connector(conn);
}
realloc_crtcs(drm, NULL);
for (size_t i = 0; i < new_outputs_len; ++i) {
struct wlr_drm_connector *conn = new_outputs[i];
wlr_drm_conn_log(conn, WLR_INFO, "Requesting modeset");
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wl_signal_emit_mutable(&drm->backend.events.new_output,
&conn->output);
}
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}
void scan_drm_leases(struct wlr_drm_backend *drm) {
drmModeLesseeListRes *list = drmModeListLessees(drm->fd);
if (list == NULL) {
wlr_log_errno(WLR_ERROR, "drmModeListLessees failed");
return;
}
struct wlr_drm_connector *conn;
wl_list_for_each(conn, &drm->outputs, link) {
if (conn->lease == NULL) {
continue;
}
bool found = false;
for (size_t i = 0; i < list->count; i++) {
if (list->lessees[i] == conn->lease->lessee_id) {
found = true;
break;
}
}
if (!found) {
wlr_log(WLR_DEBUG, "DRM lease %"PRIu32" has been terminated",
conn->lease->lessee_id);
drm_lease_destroy(conn->lease);
}
}
drmFree(list);
}
static int mhz_to_nsec(int mhz) {
return 1000000000000LL / mhz;
}
static void handle_page_flip(int fd, unsigned seq,
unsigned tv_sec, unsigned tv_usec, unsigned crtc_id, void *data) {
struct wlr_drm_backend *drm = data;
bool found = false;
struct wlr_drm_connector *conn;
wl_list_for_each(conn, &drm->outputs, link) {
if (conn->pending_page_flip_crtc == crtc_id) {
found = true;
break;
}
}
if (!found) {
wlr_log(WLR_DEBUG, "Unexpected page-flip event for CRTC %u", crtc_id);
return;
}
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conn->pending_page_flip_crtc = 0;
if (conn->status != DRM_MODE_CONNECTED || conn->crtc == NULL) {
wlr_drm_conn_log(conn, WLR_DEBUG,
"Ignoring page-flip event for disabled connector");
return;
}
struct wlr_drm_plane *plane = conn->crtc->primary;
if (plane->queued_fb) {
drm_fb_move(&plane->current_fb, &plane->queued_fb);
}
if (conn->crtc->cursor && conn->crtc->cursor->queued_fb) {
drm_fb_move(&conn->crtc->cursor->current_fb,
&conn->crtc->cursor->queued_fb);
}
uint32_t present_flags = WLR_OUTPUT_PRESENT_VSYNC |
WLR_OUTPUT_PRESENT_HW_CLOCK | WLR_OUTPUT_PRESENT_HW_COMPLETION;
/* Don't report ZERO_COPY in multi-gpu situations, because we had to copy
* data between the GPUs, even if we were using the direct scanout
* interface.
*/
if (!drm->parent && plane->current_fb &&
wlr_client_buffer_get(plane->current_fb->wlr_buf)) {
present_flags |= WLR_OUTPUT_PRESENT_ZERO_COPY;
}
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struct timespec present_time = {
.tv_sec = tv_sec,
.tv_nsec = tv_usec * 1000,
};
struct wlr_output_event_present present_event = {
/* The DRM backend guarantees that the presentation event will be for
* the last submitted frame. */
.commit_seq = conn->output.commit_seq,
.presented = true,
.when = &present_time,
.seq = seq,
.refresh = mhz_to_nsec(conn->output.refresh),
.flags = present_flags,
};
wlr_output_send_present(&conn->output, &present_event);
2018-09-29 22:38:13 +02:00
Revert "backend/drm: Check if output is enabled before sending frame event" This reverts commit 85757665e6e1393773b36282aa244feb10b7a5fe. We now check if the output is enabled within wlr_output_send_frame, no need to handle this explicitly in the DRM backend. This also fixes a race which was introduced with this commit: if we schedule the flip, disable and commit the output before the flip happens, output.frame_pending will not be reset to false. We than always fail to enable the output subsequently: 00:07:13.276 [INFO] [sway/commands.c:257] Handling command 'output DP-2 enable' 00:07:13.276 [DEBUG] [sway/commands.c:428] Subcommand: enable 00:07:13.276 [DEBUG] [sway/config/output.c:204] Merging on top of existing output config 00:07:13.276 [DEBUG] [sway/config/output.c:227] Config stored for output DP-2 (enabled: 1) (-1x-1@-1.000000Hz position 0,0 scale -1.000000 subpixel unknown transform -1) (bg /home/phoenix/Pictures/Wallpapers/mine/oper.jpg fill) (dpms 1) (max render time: -1) 00:07:13.276 [DEBUG] [sway/config/output.c:351] Turning on output DP-2 00:07:13.276 [DEBUG] [sway/config/output.c:360] Set preferred mode 00:07:13.276 [DEBUG] [wlr] [backend/drm/drm.c:465] connector DP-2: Can't enable an output without a buffer 00:07:13.276 [DEBUG] [wlr] [types/wlr_output.c:689] Attaching empty buffer to output for modeset 00:07:13.277 [DEBUG] [sway/config/output.c:329] Output DPI: 162.560000x161.364706 00:07:13.277 [DEBUG] [sway/config/output.c:400] Auto-detected output scale: 1.000000 00:07:13.277 [DEBUG] [sway/config/output.c:430] Committing output DP-2 00:07:13.277 [DEBUG] [wlr] [types/wlr_output.c:729] Tried to commit a buffer while a frame is pending since the basic_output_test will always fail. Reset frame_pending to false even if the output has been disabled in the meantime. Fixes https://github.com/swaywm/wlroots/issues/3109
2021-08-17 20:50:48 +02:00
if (drm->session->active) {
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wlr_output_send_frame(&conn->output);
}
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}
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int handle_drm_event(int fd, uint32_t mask, void *data) {
struct wlr_drm_backend *drm = data;
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drmEventContext event = {
.version = 3,
.page_flip_handler2 = handle_page_flip,
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};
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if (drmHandleEvent(fd, &event) != 0) {
wlr_log(WLR_ERROR, "drmHandleEvent failed");
wl_display_terminate(drm->display);
}
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return 1;
}
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static void disconnect_drm_connector(struct wlr_drm_connector *conn) {
if (conn->status == DRM_MODE_DISCONNECTED) {
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return;
}
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// This will cleanup the compositor-facing wlr_output, but won't destroy
// our wlr_drm_connector.
wlr_output_destroy(&conn->output);
assert(conn->status == DRM_MODE_DISCONNECTED);
}
void destroy_drm_connector(struct wlr_drm_connector *conn) {
disconnect_drm_connector(conn);
wl_list_remove(&conn->link);
free(conn);
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}
int wlr_drm_backend_get_non_master_fd(struct wlr_backend *backend) {
assert(backend);
struct wlr_drm_backend *drm = get_drm_backend_from_backend(backend);
char *path = drmGetDeviceNameFromFd2(drm->fd);
if (!path) {
wlr_log(WLR_ERROR, "Failed to get device name from DRM fd");
return -1;
}
int fd = open(path, O_RDWR | O_CLOEXEC);
if (fd < 0) {
wlr_log_errno(WLR_ERROR, "Unable to clone DRM fd for client fd");
free(path);
return -1;
}
if (drmIsMaster(fd) && drmDropMaster(fd) < 0) {
wlr_log_errno(WLR_ERROR, "Failed to drop master");
return -1;
}
return fd;
}
struct wlr_drm_lease *wlr_drm_create_lease(struct wlr_output **outputs,
size_t n_outputs, int *lease_fd_ptr) {
assert(outputs);
if (n_outputs == 0) {
wlr_log(WLR_ERROR, "Can't lease 0 outputs");
return NULL;
}
struct wlr_drm_backend *drm =
get_drm_backend_from_backend(outputs[0]->backend);
int n_objects = 0;
uint32_t objects[4 * n_outputs + 1];
for (size_t i = 0; i < n_outputs; ++i) {
struct wlr_drm_connector *conn =
get_drm_connector_from_output(outputs[i]);
assert(conn->lease == NULL);
if (conn->backend != drm) {
wlr_log(WLR_ERROR, "Can't lease output from different backends");
return NULL;
}
objects[n_objects++] = conn->id;
wlr_log(WLR_DEBUG, "Connector %d", conn->id);
if (!drm_connector_alloc_crtc(conn)) {
wlr_log(WLR_ERROR, "Failled to allocate connector CRTC");
return NULL;
}
objects[n_objects++] = conn->crtc->id;
wlr_log(WLR_DEBUG, "CRTC %d", conn->crtc->id);
objects[n_objects++] = conn->crtc->primary->id;
wlr_log(WLR_DEBUG, "Primary plane %d", conn->crtc->primary->id);
if (conn->crtc->cursor) {
wlr_log(WLR_DEBUG, "Cursor plane %d", conn->crtc->cursor->id);
objects[n_objects++] = conn->crtc->cursor->id;
}
}
assert(n_objects != 0);
struct wlr_drm_lease *lease = calloc(1, sizeof(*lease));
if (lease == NULL) {
return NULL;
}
lease->backend = drm;
wl_signal_init(&lease->events.destroy);
wlr_log(WLR_DEBUG, "Issuing DRM lease with %d objects", n_objects);
int lease_fd = drmModeCreateLease(drm->fd, objects, n_objects, O_CLOEXEC,
&lease->lessee_id);
if (lease_fd < 0) {
free(lease);
return NULL;
}
*lease_fd_ptr = lease_fd;
wlr_log(WLR_DEBUG, "Issued DRM lease %"PRIu32, lease->lessee_id);
for (size_t i = 0; i < n_outputs; ++i) {
struct wlr_drm_connector *conn =
get_drm_connector_from_output(outputs[i]);
conn->lease = lease;
conn->crtc->lease = lease;
}
return lease;
}
void wlr_drm_lease_terminate(struct wlr_drm_lease *lease) {
struct wlr_drm_backend *drm = lease->backend;
wlr_log(WLR_DEBUG, "Terminating DRM lease %d", lease->lessee_id);
int ret = drmModeRevokeLease(drm->fd, lease->lessee_id);
if (ret < 0) {
wlr_log_errno(WLR_ERROR, "Failed to terminate lease");
}
drm_lease_destroy(lease);
}
void drm_lease_destroy(struct wlr_drm_lease *lease) {
struct wlr_drm_backend *drm = lease->backend;
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wl_signal_emit_mutable(&lease->events.destroy, NULL);
struct wlr_drm_connector *conn;
wl_list_for_each(conn, &drm->outputs, link) {
if (conn->lease == lease) {
conn->lease = NULL;
}
}
for (size_t i = 0; i < drm->num_crtcs; ++i) {
if (drm->crtcs[i].lease == lease) {
drm->crtcs[i].lease = NULL;
}
}
free(lease);
}