[RFC xserver v6 07/14] modesetting: Use atomic modesetting to configure output/CRTCs
Louis-Francis Ratté-Boulianne
lfrb at collabora.com
Fri Feb 16 04:15:40 UTC 2018
To make sure we also use the same primary plane and to avoid
mixing uses of two APIs, it is better to always use the atomic
modesetting API when possible.
v2: Don't use mode_output->connector_id
v3: Only use the new properties cache for atomic modesetting as to not
conflict with the newish properties fetcher/helper
Signed-off-by: Louis-Francis Ratté-Boulianne <lfrb at collabora.com>
Reviewed-by: Daniel Stone <daniels at collabora.com>
---
hw/xfree86/drivers/modesetting/drmmode_display.c | 264 +++++++++++++++++++----
hw/xfree86/drivers/modesetting/drmmode_display.h | 32 ++-
hw/xfree86/drivers/modesetting/pageflip.c | 2 +-
hw/xfree86/drivers/modesetting/present.c | 3 +-
4 files changed, 256 insertions(+), 45 deletions(-)
diff --git a/hw/xfree86/drivers/modesetting/drmmode_display.c b/hw/xfree86/drivers/modesetting/drmmode_display.c
index b8393b1ea..30e3b05db 100644
--- a/hw/xfree86/drivers/modesetting/drmmode_display.c
+++ b/hw/xfree86/drivers/modesetting/drmmode_display.c
@@ -267,16 +267,100 @@ plane_add_prop(drmModeAtomicReq *req, drmmode_crtc_private_ptr drmmode_crtc,
info->prop_id, val);
return (ret <= 0) ? -1 : 0;
}
+
+static int
+crtc_add_prop(drmModeAtomicReq *req, drmmode_crtc_private_ptr drmmode_crtc,
+ enum drmmode_crtc_property prop, uint64_t val)
+{
+ drmmode_prop_info_ptr info = &drmmode_crtc->props[prop];
+ int ret;
+
+ if (!info)
+ return -1;
+
+ ret = drmModeAtomicAddProperty(req, drmmode_crtc->mode_crtc->crtc_id,
+ info->prop_id, val);
+ return (ret <= 0) ? -1 : 0;
+}
+
+static int
+connector_add_prop(drmModeAtomicReq *req, drmmode_output_private_ptr drmmode_output,
+ enum drmmode_connector_property prop, uint64_t val)
+{
+ drmmode_prop_info_ptr info = &drmmode_output->props_connector[prop];
+ int ret;
+
+ if (!info)
+ return -1;
+
+ ret = drmModeAtomicAddProperty(req, drmmode_output->output_id,
+ info->prop_id, val);
+ return (ret <= 0) ? -1 : 0;
+}
+
+static int
+drmmode_CompareKModes(drmModeModeInfo * kmode, drmModeModeInfo * other)
+{
+ return memcmp(kmode, other, sizeof(*kmode));
+}
+
+static int
+drm_mode_ensure_blob(xf86CrtcPtr crtc, drmModeModeInfo mode_info)
+{
+ modesettingPtr ms = modesettingPTR(crtc->scrn);
+ drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
+ drmmode_mode_ptr mode;
+ int ret;
+
+ if (drmmode_crtc->current_mode &&
+ drmmode_CompareKModes(&drmmode_crtc->current_mode->mode_info, &mode_info) == 0)
+ return 0;
+
+ mode = calloc(sizeof(drmmode_mode_rec), 1);
+ if (!mode)
+ return -1;
+
+ mode->mode_info = mode_info;
+ ret = drmModeCreatePropertyBlob(ms->fd,
+ &mode->mode_info,
+ sizeof(mode->mode_info),
+ &mode->blob_id);
+ drmmode_crtc->current_mode = mode;
+ xorg_list_add(&mode->entry, &drmmode_crtc->mode_list);
+
+ return ret;
+}
+
+static void
+drm_mode_destroy(xf86CrtcPtr crtc, drmmode_mode_ptr mode)
+{
+ modesettingPtr ms = modesettingPTR(crtc->scrn);
+ if (mode->blob_id)
+ drmModeDestroyPropertyBlob(ms->fd, mode->blob_id);
+ xorg_list_del(&mode->entry);
+ free(mode);
+}
#endif
+static void
+drmmode_ConvertToKMode(ScrnInfoPtr scrn,
+ drmModeModeInfo * kmode, DisplayModePtr mode);
+
int
-drmmode_crtc_set_fb(xf86CrtcPtr crtc, uint32_t fb_id,
+drmmode_crtc_set_fb(xf86CrtcPtr crtc, DisplayModePtr mode, uint32_t fb_id,
int x, int y, uint32_t flags, void *data)
{
modesettingPtr ms = modesettingPTR(crtc->scrn);
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
- int ret = 0;
+ drmmode_ptr drmmode = drmmode_crtc->drmmode;
+ int output_count = 0;
+ uint32_t *output_ids = NULL;
+ drmModeModeInfo kmode;
+ int i, ret = 0;
+
+ if (mode)
+ drmmode_ConvertToKMode(crtc->scrn, &kmode, mode);
#ifdef GLAMOR_HAS_DRM_ATOMIC
if (ms->atomic_modeset) {
@@ -285,12 +369,56 @@ drmmode_crtc_set_fb(xf86CrtcPtr crtc, uint32_t fb_id,
if (!req)
return 1;
+ if (mode) {
+ ret = drm_mode_ensure_blob(crtc, kmode);
+
+ for (i = 0; i < xf86_config->num_output; i++) {
+ xf86OutputPtr output = xf86_config->output[i];
+ drmmode_output_private_ptr drmmode_output;
+
+ if (output->crtc != crtc)
+ continue;
+
+ drmmode_output = output->driver_private;
+ if (drmmode_output->output_id == -1)
+ continue;
+
+ if (drmmode_output->dpms == DPMSModeOn) {
+ ret |= crtc_add_prop(req, drmmode_crtc,
+ DRMMODE_CRTC_ACTIVE, 1);
+ ret |= crtc_add_prop(req, drmmode_crtc,
+ DRMMODE_CRTC_MODE_ID,
+ drmmode_crtc->current_mode->blob_id);
+ ret |= connector_add_prop(req, drmmode_output,
+ DRMMODE_CONNECTOR_CRTC_ID,
+ drmmode_crtc->mode_crtc->crtc_id);
+ } else {
+ ret |= crtc_add_prop(req, drmmode_crtc,
+ DRMMODE_CRTC_ACTIVE, 0);
+ ret |= crtc_add_prop(req, drmmode_crtc,
+ DRMMODE_CRTC_MODE_ID, 0);
+ ret |= connector_add_prop(req, drmmode_output,
+ DRMMODE_CONNECTOR_CRTC_ID, 0);
+ }
+ }
+ }
+
ret |= plane_add_prop(req, drmmode_crtc, DRMMODE_PLANE_FB_ID,
fb_id);
ret |= plane_add_prop(req, drmmode_crtc, DRMMODE_PLANE_CRTC_ID,
drmmode_crtc->mode_crtc->crtc_id);
- ret |= plane_add_prop(req, drmmode_crtc, DRMMODE_PLANE_SRC_X, x);
- ret |= plane_add_prop(req, drmmode_crtc, DRMMODE_PLANE_SRC_Y, y);
+ ret |= plane_add_prop(req, drmmode_crtc, DRMMODE_PLANE_SRC_X, x << 16);
+ ret |= plane_add_prop(req, drmmode_crtc, DRMMODE_PLANE_SRC_Y, y << 16);
+ ret |= plane_add_prop(req, drmmode_crtc, DRMMODE_PLANE_SRC_W,
+ drmmode->front_bo.width << 16);
+ ret |= plane_add_prop(req, drmmode_crtc, DRMMODE_PLANE_SRC_H,
+ drmmode->front_bo.height << 16);
+ ret |= plane_add_prop(req, drmmode_crtc, DRMMODE_PLANE_CRTC_X, 0);
+ ret |= plane_add_prop(req, drmmode_crtc, DRMMODE_PLANE_CRTC_Y, 0);
+ ret |= plane_add_prop(req, drmmode_crtc, DRMMODE_PLANE_CRTC_W,
+ drmmode->front_bo.width);
+ ret |= plane_add_prop(req, drmmode_crtc, DRMMODE_PLANE_CRTC_H,
+ drmmode->front_bo.height);
if (ret == 0)
ret = drmModeAtomicCommit(ms->fd, req, flags, data);
@@ -300,7 +428,29 @@ drmmode_crtc_set_fb(xf86CrtcPtr crtc, uint32_t fb_id,
}
#endif
- return 0;
+ output_ids = calloc(sizeof(uint32_t), xf86_config->num_output);
+ if (!output_ids)
+ return -1;
+
+ for (i = 0; i < xf86_config->num_output; i++) {
+ xf86OutputPtr output = xf86_config->output[i];
+ drmmode_output_private_ptr drmmode_output;
+
+ if (output->crtc != crtc)
+ continue;
+
+ drmmode_output = output->driver_private;
+ if (drmmode_output->output_id == -1)
+ continue;
+ output_ids[output_count] = drmmode_output->output_id;
+ output_count++;
+ }
+
+ ret = drmModeSetCrtc(drmmode->fd, drmmode_crtc->mode_crtc->crtc_id,
+ fb_id, x, y, output_ids, output_count, &kmode);
+
+ free(output_ids);
+ return ret;
}
@@ -857,23 +1007,16 @@ static Bool
drmmode_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
Rotation rotation, int x, int y)
{
- ScrnInfoPtr pScrn = crtc->scrn;
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
drmmode_ptr drmmode = drmmode_crtc->drmmode;
int saved_x, saved_y;
Rotation saved_rotation;
DisplayModeRec saved_mode;
- uint32_t *output_ids = NULL;
- int output_count = 0;
Bool ret = TRUE;
int i;
uint32_t fb_id = 0;
- drmModeModeInfo kmode;
-
- output_ids = calloc(sizeof(uint32_t), xf86_config->num_output);
- if (!output_ids)
- return FALSE;
+ uint32_t flags = 0;
saved_mode = crtc->mode;
saved_x = crtc->x;
@@ -886,29 +1029,13 @@ drmmode_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
crtc->y = y;
crtc->rotation = rotation;
- for (i = 0; i < xf86_config->num_output; i++) {
- xf86OutputPtr output = xf86_config->output[i];
- drmmode_output_private_ptr drmmode_output;
-
- if (output->crtc != crtc)
- continue;
-
- drmmode_output = output->driver_private;
- if (drmmode_output->output_id == -1)
- continue;
- output_ids[output_count] =
- drmmode_output->mode_output->connector_id;
- output_count++;
- }
-
if (!xf86CrtcRotate(crtc)) {
goto done;
}
+
crtc->funcs->gamma_set(crtc, crtc->gamma_red, crtc->gamma_green,
crtc->gamma_blue, crtc->gamma_size);
- drmmode_ConvertToKMode(crtc->scrn, &kmode, mode);
-
fb_id = drmmode->fb_id;
if (drmmode_crtc->prime_pixmap) {
if (!drmmode->reverse_prime_offload_mode) {
@@ -926,12 +1053,8 @@ drmmode_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
}
if (fb_id == 0) {
- ret = drmModeAddFB(drmmode->fd,
- pScrn->virtualX, pScrn->virtualY,
- pScrn->depth, drmmode->kbpp,
- drmmode_bo_get_pitch(&drmmode->front_bo),
- drmmode_bo_get_handle(&drmmode->front_bo),
- &drmmode->fb_id);
+ ret = drmmode_bo_import(drmmode, &drmmode->front_bo,
+ &drmmode->fb_id);
if (ret < 0) {
ErrorF("failed to add fb %d\n", ret);
ret = FALSE;
@@ -940,8 +1063,8 @@ drmmode_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
fb_id = drmmode->fb_id;
}
- if (drmModeSetCrtc(drmmode->fd, drmmode_crtc->mode_crtc->crtc_id,
- fb_id, x, y, output_ids, output_count, &kmode)) {
+ flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
+ if (drmmode_crtc_set_fb(crtc, mode, fb_id, x, y, flags, NULL)) {
xf86DrvMsg(crtc->scrn->scrnIndex, X_ERROR,
"failed to set mode: %s\n", strerror(errno));
ret = FALSE;
@@ -982,8 +1105,6 @@ drmmode_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
} else
crtc->active = TRUE;
- free(output_ids);
-
return ret;
}
@@ -1354,9 +1475,15 @@ drmmode_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
static void
drmmode_crtc_destroy(xf86CrtcPtr crtc)
{
+#ifdef GLAMOR_HAS_DRM_ATOMIC
+ drmmode_mode_ptr iterator, next;
drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
drmmode_prop_info_free(drmmode_crtc->props_plane, DRMMODE_PLANE__COUNT);
+ xorg_list_for_each_entry_safe(iterator, next, &drmmode_crtc->mode_list, entry) {
+ drm_mode_destroy(crtc, iterator);
+ }
+#endif
}
static const xf86CrtcFuncsRec drmmode_crtc_funcs = {
@@ -1434,6 +1561,14 @@ drmmode_crtc_create_planes(xf86CrtcPtr crtc, int num)
},
[DRMMODE_PLANE_FB_ID] = { .name = "FB_ID", },
[DRMMODE_PLANE_CRTC_ID] = { .name = "CRTC_ID", },
+ [DRMMODE_PLANE_SRC_X] = { .name = "SRC_X", },
+ [DRMMODE_PLANE_SRC_Y] = { .name = "SRC_Y", },
+ [DRMMODE_PLANE_SRC_W] = { .name = "SRC_W", },
+ [DRMMODE_PLANE_SRC_H] = { .name = "SRC_H", },
+ [DRMMODE_PLANE_CRTC_X] = { .name = "CRTC_X", },
+ [DRMMODE_PLANE_CRTC_Y] = { .name = "CRTC_Y", },
+ [DRMMODE_PLANE_CRTC_W] = { .name = "CRTC_W", },
+ [DRMMODE_PLANE_CRTC_H] = { .name = "CRTC_H", },
};
drmmode_prop_info_rec tmp_props[DRMMODE_PLANE__COUNT];
@@ -1521,19 +1656,37 @@ drmmode_crtc_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, drmModeResPtr mode_res
xf86CrtcPtr crtc;
drmmode_crtc_private_ptr drmmode_crtc;
modesettingEntPtr ms_ent = ms_ent_priv(pScrn);
+#ifdef GLAMOR_HAS_DRM_ATOMIC
+ drmModeObjectPropertiesPtr props;
+ static const drmmode_prop_info_rec crtc_props[] = {
+ [DRMMODE_CRTC_ACTIVE] = { .name = "ACTIVE" },
+ [DRMMODE_CRTC_MODE_ID] = { .name = "MODE_ID" },
+ };
+#endif
crtc = xf86CrtcCreate(pScrn, &drmmode_crtc_funcs);
if (crtc == NULL)
return 0;
-
drmmode_crtc = xnfcalloc(sizeof(drmmode_crtc_private_rec), 1);
+ crtc->driver_private = drmmode_crtc;
drmmode_crtc->mode_crtc =
drmModeGetCrtc(drmmode->fd, mode_res->crtcs[num]);
drmmode_crtc->drmmode = drmmode;
drmmode_crtc->vblank_pipe = drmmode_crtc_vblank_pipe(num);
- crtc->driver_private = drmmode_crtc;
+ xorg_list_init(&drmmode_crtc->mode_list);
#ifdef GLAMOR_HAS_DRM_ATOMIC
+ props = drmModeObjectGetProperties(drmmode->fd, mode_res->crtcs[num],
+ DRM_MODE_OBJECT_CRTC);
+ if (!props || !drmmode_prop_info_copy(drmmode_crtc->props, crtc_props,
+ DRMMODE_CRTC__COUNT, 0)) {
+ xf86CrtcDestroy(crtc);
+ return 0;
+ }
+
+ drmmode_prop_info_update(drmmode, drmmode_crtc->props,
+ DRMMODE_CRTC__COUNT, props);
+ drmModeFreeObjectProperties(props);
drmmode_crtc_create_planes(crtc, num);
#endif
@@ -1677,6 +1830,7 @@ koutput_get_prop_idx(int fd, drmModeConnectorPtr koutput,
return idx;
}
+#ifndef GLAMOR_HAS_DRM_ATOMIC
static int
koutput_get_prop_id(int fd, drmModeConnectorPtr koutput,
int type, const char *name)
@@ -1685,6 +1839,7 @@ koutput_get_prop_id(int fd, drmModeConnectorPtr koutput,
return (idx > -1) ? koutput->props[idx] : -1;
}
+#endif
static drmModePropertyBlobPtr
koutput_get_prop_blob(int fd, drmModeConnectorPtr koutput, const char *name)
@@ -1856,13 +2011,19 @@ drmmode_output_dpms(xf86OutputPtr output, int mode)
drmmode_output_private_ptr drmmode_output = output->driver_private;
xf86CrtcPtr crtc = output->crtc;
drmModeConnectorPtr koutput = drmmode_output->mode_output;
+#ifndef GLAMOR_HAS_DRM_ATOMIC
drmmode_ptr drmmode = drmmode_output->drmmode;
+#endif
if (!koutput)
return;
+#ifdef GLAMOR_HAS_DRM_ATOMIC
+ drmmode_output->dpms = mode;
+#else
drmModeConnectorSetProperty(drmmode->fd, koutput->connector_id,
drmmode_output->dpms_enum_id, mode);
+#endif
if (crtc) {
drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
@@ -2187,6 +2348,13 @@ drmmode_output_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, drmModeResPtr mode_r
int i;
drmModePropertyBlobPtr path_blob = NULL;
const char *s;
+#ifdef GLAMOR_HAS_DRM_ATOMIC
+ drmModeObjectPropertiesPtr props;
+ static const drmmode_prop_info_rec connector_props[] = {
+ [DRMMODE_CONNECTOR_CRTC_ID] = { .name = "CRTC_ID", },
+ };
+#endif
+
koutput =
drmModeGetConnector(drmmode->fd, mode_res->connectors[num]);
if (!koutput)
@@ -2269,8 +2437,20 @@ drmmode_output_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, drmModeResPtr mode_r
/* work out the possible clones later */
output->possible_clones = 0;
+#ifdef GLAMOR_HAS_DRM_ATOMIC
+ if (!drmmode_prop_info_copy(drmmode_output->props_connector, connector_props,
+ DRMMODE_CONNECTOR__COUNT, 0)) {
+ goto out_free_encoders;
+ }
+ props = drmModeObjectGetProperties(drmmode->fd,
+ drmmode_output->output_id,
+ DRM_MODE_OBJECT_CONNECTOR);
+ drmmode_prop_info_update(drmmode, drmmode_output->props_connector,
+ DRMMODE_CONNECTOR__COUNT, props);
+#else
drmmode_output->dpms_enum_id =
koutput_get_prop_id(drmmode->fd, koutput, DRM_MODE_PROP_ENUM, "DPMS");
+#endif
if (dynamic)
output->randr_output = RROutputCreate(xf86ScrnToScreen(pScrn), output->name, strlen(output->name), output);
diff --git a/hw/xfree86/drivers/modesetting/drmmode_display.h b/hw/xfree86/drivers/modesetting/drmmode_display.h
index 1641706b6..fcb13a491 100644
--- a/hw/xfree86/drivers/modesetting/drmmode_display.h
+++ b/hw/xfree86/drivers/modesetting/drmmode_display.h
@@ -40,6 +40,14 @@ enum drmmode_plane_property {
DRMMODE_PLANE_TYPE = 0,
DRMMODE_PLANE_FB_ID,
DRMMODE_PLANE_CRTC_ID,
+ DRMMODE_PLANE_SRC_X,
+ DRMMODE_PLANE_SRC_Y,
+ DRMMODE_PLANE_SRC_W,
+ DRMMODE_PLANE_SRC_H,
+ DRMMODE_PLANE_CRTC_X,
+ DRMMODE_PLANE_CRTC_Y,
+ DRMMODE_PLANE_CRTC_W,
+ DRMMODE_PLANE_CRTC_H,
DRMMODE_PLANE__COUNT
};
@@ -50,6 +58,17 @@ enum drmmode_plane_type {
DRMMODE_PLANE_TYPE__COUNT
};
+enum drmmode_connector_property {
+ DRMMODE_CONNECTOR_CRTC_ID,
+ DRMMODE_CONNECTOR__COUNT
+};
+
+enum drmmode_crtc_property {
+ DRMMODE_CRTC_ACTIVE,
+ DRMMODE_CRTC_MODE_ID,
+ DRMMODE_CRTC__COUNT
+};
+
typedef struct {
uint32_t width;
uint32_t height;
@@ -114,6 +133,12 @@ typedef struct {
drmmode_prop_enum_info_rec *enum_values;
} drmmode_prop_info_rec, *drmmode_prop_info_ptr;
+typedef struct {
+ drmModeModeInfo mode_info;
+ uint32_t blob_id;
+ struct xorg_list entry;
+} drmmode_mode_rec, *drmmode_mode_ptr;
+
typedef struct {
drmmode_ptr drmmode;
drmModeCrtcPtr mode_crtc;
@@ -123,8 +148,10 @@ typedef struct {
Bool cursor_up;
uint16_t lut_r[256], lut_g[256], lut_b[256];
+ drmmode_prop_info_rec props[DRMMODE_CRTC__COUNT];
drmmode_prop_info_rec props_plane[DRMMODE_PLANE__COUNT];
uint32_t plane_id;
+ drmmode_mode_ptr current_mode;
drmmode_bo rotate_bo;
unsigned rotate_fb_id;
@@ -146,6 +173,7 @@ typedef struct {
/** @} */
Bool need_modeset;
+ struct xorg_list mode_list;
Bool enable_flipping;
Bool flipping_active;
@@ -166,8 +194,10 @@ typedef struct {
drmModePropertyBlobPtr edid_blob;
drmModePropertyBlobPtr tile_blob;
int dpms_enum_id;
+ int dpms;
int num_props;
drmmode_prop_ptr props;
+ drmmode_prop_info_rec props_connector[DRMMODE_CONNECTOR__COUNT];
int enc_mask;
int enc_clone_mask;
} drmmode_output_private_rec, *drmmode_output_private_ptr;
@@ -231,7 +261,7 @@ void drmmode_get_default_bpp(ScrnInfoPtr pScrn, drmmode_ptr drmmmode,
void drmmode_copy_fb(ScrnInfoPtr pScrn, drmmode_ptr drmmode);
-int drmmode_crtc_set_fb(xf86CrtcPtr crtc, uint32_t fb_id,
+int drmmode_crtc_set_fb(xf86CrtcPtr crtc, DisplayModePtr mode, uint32_t fb_id,
int x, int y, uint32_t flags, void *data);
#ifndef DRM_CAP_DUMB_PREFERRED_DEPTH
diff --git a/hw/xfree86/drivers/modesetting/pageflip.c b/hw/xfree86/drivers/modesetting/pageflip.c
index 027ebfe42..26738f928 100644
--- a/hw/xfree86/drivers/modesetting/pageflip.c
+++ b/hw/xfree86/drivers/modesetting/pageflip.c
@@ -168,7 +168,7 @@ do_queue_flip_on_crtc(modesettingPtr ms, xf86CrtcPtr crtc,
#ifdef GLAMOR_HAS_DRM_ATOMIC
if (ms->atomic_modeset) {
flags |= DRM_MODE_ATOMIC_NONBLOCK;
- return drmmode_crtc_set_fb(crtc, ms->drmmode.fb_id, 0, 0, flags,
+ return drmmode_crtc_set_fb(crtc, NULL, ms->drmmode.fb_id, 0, 0, flags,
(void *) (uintptr_t) seq);
}
#endif
diff --git a/hw/xfree86/drivers/modesetting/present.c b/hw/xfree86/drivers/modesetting/present.c
index c01be3486..4a01d19ea 100644
--- a/hw/xfree86/drivers/modesetting/present.c
+++ b/hw/xfree86/drivers/modesetting/present.c
@@ -248,7 +248,8 @@ ms_present_check_flip(RRCrtcPtr crtc,
return FALSE;
/* Check stride, can't change that on flip */
- if (pixmap->devKind != drmmode_bo_get_pitch(&ms->drmmode.front_bo))
+ if (!ms->atomic_modeset &&
+ pixmap->devKind != drmmode_bo_get_pitch(&ms->drmmode.front_bo))
return FALSE;
/* Make sure there's a bo we can get to */
--
2.14.3
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