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authorKeith Packard <keithp@keithp.com>2018-02-12 13:51:56 -0800
committerMichel Dänzer <michel@daenzer.net>2018-07-10 11:43:33 +0200
commit61040bdfa360975614fb47aa7ea1b3a1abac3427 (patch)
tree8c3588e64ef999210b27b7799e2d50274447901e /src
parentab7e39c5a03e24c3ce3ee2f22ada7572bc2d9aa7 (diff)
Add RandR leases support
Signed-off-by: Keith Packard <keithp@keithp.com> (Ported from xserver commit e4e3447603b5fd3a38a92c3f972396d1f81168ad) Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Diffstat (limited to 'src')
-rw-r--r--src/amdgpu_kms.c1
-rw-r--r--src/drmmode_display.c159
-rw-r--r--src/drmmode_display.h6
3 files changed, 165 insertions, 1 deletions
diff --git a/src/amdgpu_kms.c b/src/amdgpu_kms.c
index bedd020..c357ab6 100644
--- a/src/amdgpu_kms.c
+++ b/src/amdgpu_kms.c
@@ -1703,6 +1703,7 @@ static Bool AMDGPUCloseScreen_KMS(ScreenPtr pScreen)
/* Clear mask of assigned crtc's in this generation */
pAMDGPUEnt->assigned_crtcs = 0;
+ drmmode_terminate_leases(pScrn);
drmmode_uevent_fini(pScrn, &info->drmmode);
amdgpu_drm_queue_close(pScrn);
diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index 031d826..fee6fed 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -2936,8 +2936,159 @@ fail:
return FALSE;
}
+static void
+drmmode_validate_leases(ScrnInfoPtr scrn)
+{
+#ifdef XF86_LEASE_VERSION
+ ScreenPtr screen = scrn->pScreen;
+ rrScrPrivPtr scr_priv = rrGetScrPriv(screen);
+ AMDGPUEntPtr pAMDGPUEnt = AMDGPUEntPriv(scrn);
+ drmModeLesseeListPtr lessees;
+ RRLeasePtr lease, next;
+ int l;
+
+ /* We can't talk to the kernel about leases when VT switched */
+ if (!scrn->vtSema)
+ return;
+
+ lessees = drmModeListLessees(pAMDGPUEnt->fd);
+ if (!lessees)
+ return;
+
+ xorg_list_for_each_entry_safe(lease, next, &scr_priv->leases, list) {
+ drmmode_lease_private_ptr lease_private = lease->devPrivate;
+
+ for (l = 0; l < lessees->count; l++) {
+ if (lessees->lessees[l] == lease_private->lessee_id)
+ break;
+ }
+
+ /* check to see if the lease has gone away */
+ if (l == lessees->count) {
+ free(lease_private);
+ lease->devPrivate = NULL;
+ xf86CrtcLeaseTerminated(lease);
+ }
+ }
+
+ free(lessees);
+#endif
+}
+
+#ifdef XF86_LEASE_VERSION
+
+static int
+drmmode_create_lease(RRLeasePtr lease, int *fd)
+{
+ ScreenPtr screen = lease->screen;
+ ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+ AMDGPUEntPtr pAMDGPUEnt = AMDGPUEntPriv(scrn);
+ drmmode_lease_private_ptr lease_private;
+ int noutput = lease->numOutputs;
+ int ncrtc = lease->numCrtcs;
+ uint32_t *objects;
+ size_t nobjects;
+ int lease_fd;
+ int c, o;
+ int i;
+
+ nobjects = ncrtc + noutput;
+ if (nobjects == 0 || nobjects > (SIZE_MAX / 4) ||
+ ncrtc > (SIZE_MAX - noutput))
+ return BadValue;
+
+ lease_private = calloc(1, sizeof (drmmode_lease_private_rec));
+ if (!lease_private)
+ return BadAlloc;
+
+ objects = malloc(nobjects * 4);
+ if (!objects) {
+ free(lease_private);
+ return BadAlloc;
+ }
+
+ i = 0;
+
+ /* Add CRTC ids */
+ for (c = 0; c < ncrtc; c++) {
+ xf86CrtcPtr crtc = lease->crtcs[c]->devPrivate;
+ drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
+
+ objects[i++] = drmmode_crtc->mode_crtc->crtc_id;
+ }
+
+ /* Add connector ids */
+ for (o = 0; o < noutput; o++) {
+ xf86OutputPtr output = lease->outputs[o]->devPrivate;
+ drmmode_output_private_ptr drmmode_output = output->driver_private;
+
+ objects[i++] = drmmode_output->mode_output->connector_id;
+ }
+
+ /* call kernel to create lease */
+ assert (i == nobjects);
+
+ lease_fd = drmModeCreateLease(pAMDGPUEnt->fd, objects, nobjects, 0,
+ &lease_private->lessee_id);
+
+ free(objects);
+
+ if (lease_fd < 0) {
+ free(lease_private);
+ return BadMatch;
+ }
+
+ lease->devPrivate = lease_private;
+
+ xf86CrtcLeaseStarted(lease);
+
+ *fd = lease_fd;
+ return Success;
+}
+
+static void
+drmmode_terminate_lease(RRLeasePtr lease)
+{
+ drmmode_lease_private_ptr lease_private = lease->devPrivate;
+ ScreenPtr screen = lease->screen;
+ ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
+ AMDGPUEntPtr pAMDGPUEnt = AMDGPUEntPriv(scrn);
+
+ if (drmModeRevokeLease(pAMDGPUEnt->fd, lease_private->lessee_id) == 0) {
+ free(lease_private);
+ lease->devPrivate = NULL;
+ xf86CrtcLeaseTerminated(lease);
+ }
+}
+
+#endif // XF86_LEASE_VERSION
+
+void
+drmmode_terminate_leases(ScrnInfoPtr pScrn)
+{
+#ifdef XF86_LEASE_VERSION
+ ScreenPtr screen = xf86ScrnToScreen(pScrn);
+ AMDGPUEntPtr pAMDGPUEnt = AMDGPUEntPriv(pScrn);
+ rrScrPrivPtr scr_priv = rrGetScrPriv(screen);
+ RRLeasePtr lease, next;
+
+ xorg_list_for_each_entry_safe(lease, next, &scr_priv->leases, list) {
+ drmmode_lease_private_ptr lease_private = lease->devPrivate;
+ drmModeRevokeLease(pAMDGPUEnt->fd, lease_private->lessee_id);
+ free(lease_private);
+ lease->devPrivate = NULL;
+ RRLeaseTerminated(lease);
+ RRLeaseFree(lease);
+ }
+#endif
+}
+
static const xf86CrtcConfigFuncsRec drmmode_xf86crtc_config_funcs = {
- drmmode_xf86crtc_resize
+ .resize = drmmode_xf86crtc_resize,
+#ifdef XF86_LEASE_VERSION
+ .create_lease = drmmode_create_lease,
+ .terminate_lease = drmmode_terminate_lease
+#endif
};
static void
@@ -3476,6 +3627,9 @@ Bool drmmode_set_desired_modes(ScrnInfoPtr pScrn, drmmode_ptr drmmode,
return FALSE;
}
+ /* Validate leases on VT re-entry */
+ drmmode_validate_leases(pScrn);
+
return TRUE;
}
@@ -3642,6 +3796,9 @@ restart_destroy:
changed = TRUE;
}
+ /* Check to see if a lessee has disappeared */
+ drmmode_validate_leases(scrn);
+
if (changed && dixPrivateKeyRegistered(rrPrivKey)) {
#if XORG_VERSION_CURRENT >= XORG_VERSION_NUMERIC(1,14,99,2,0)
RRSetChanged(xf86ScrnToScreen(scrn));
diff --git a/src/drmmode_display.h b/src/drmmode_display.h
index 0f0227c..0646752 100644
--- a/src/drmmode_display.h
+++ b/src/drmmode_display.h
@@ -157,6 +157,10 @@ typedef struct {
int tear_free;
} drmmode_output_private_rec, *drmmode_output_private_ptr;
+typedef struct {
+ uint32_t lessee_id;
+} drmmode_lease_private_rec, *drmmode_lease_private_ptr;
+
enum drmmode_flip_sync {
FLIP_VSYNC,
@@ -241,6 +245,8 @@ PixmapPtr drmmode_crtc_scanout_create(xf86CrtcPtr crtc,
extern void drmmode_uevent_init(ScrnInfoPtr scrn, drmmode_ptr drmmode);
extern void drmmode_uevent_fini(ScrnInfoPtr scrn, drmmode_ptr drmmode);
+extern void drmmode_terminate_leases(ScrnInfoPtr scrn);
+
Bool drmmode_set_mode(xf86CrtcPtr crtc, struct drmmode_fb *fb,
DisplayModePtr mode, int x, int y);