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drm: Free the writeback_job when it with an empty fb 

Adds the check if the writeback_job with an empty fb, then it should
be freed in atomic_check phase.

With this change, the driver users will not check empty fb case any more.
So refined accordingly.

Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1564571048-15029-2-git-send-email-lowry.li@arm.com
This commit is contained in:
Lowry Li (Arm Technology China) 2019-07-31 11:04:38 +00:00 committed by james qian wang (Arm Technology China)
parent 21670bd78a
commit 8581d51055
5 changed files with 16 additions and 13 deletions
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3
drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
View File

@ -43,9 +43,8 @@ komeda_wb_encoder_atomic_check(struct drm_encoder *encoder,
struct komeda_data_flow_cfg dflow;
int err;
if (!writeback_job || !writeback_job->fb) {
if (!writeback_job)
return 0;
}
if (!crtc_st->active) {
DRM_DEBUG_ATOMIC("Cannot write the composition result out on a inactive CRTC.\n");

4
drivers/gpu/drm/arm/malidp_mw.c
View File

@ -130,7 +130,7 @@ malidp_mw_encoder_atomic_check(struct drm_encoder *encoder,
struct drm_framebuffer *fb;
int i, n_planes;
if (!conn_state->writeback_job || !conn_state->writeback_job->fb)
if (!conn_state->writeback_job)
return 0;
fb = conn_state->writeback_job->fb;
@ -247,7 +247,7 @@ void malidp_mw_atomic_commit(struct drm_device *drm,
mw_state = to_mw_state(conn_state);
if (conn_state->writeback_job && conn_state->writeback_job->fb) {
if (conn_state->writeback_job) {
struct drm_framebuffer *fb = conn_state->writeback_job->fb;
DRM_DEV_DEBUG_DRIVER(drm->dev,

13
drivers/gpu/drm/drm_atomic.c
View File

@ -430,10 +430,15 @@ static int drm_atomic_connector_check(struct drm_connector *connector,
return -EINVAL;
}
if (writeback_job->out_fence && !writeback_job->fb) {
DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] requesting out-fence without framebuffer\n",
connector->base.id, connector->name);
return -EINVAL;
if (!writeback_job->fb) {
if (writeback_job->out_fence) {
DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] requesting out-fence without framebuffer\n",
connector->base.id, connector->name);
return -EINVAL;
}
drm_writeback_cleanup_job(writeback_job);
state->writeback_job = NULL;
}
return 0;

4
drivers/gpu/drm/rcar-du/rcar_du_writeback.c
View File

@ -147,7 +147,7 @@ static int rcar_du_wb_enc_atomic_check(struct drm_encoder *encoder,
struct drm_device *dev = encoder->dev;
struct drm_framebuffer *fb;
if (!conn_state->writeback_job || !conn_state->writeback_job->fb)
if (!conn_state->writeback_job)
return 0;
fb = conn_state->writeback_job->fb;
@ -221,7 +221,7 @@ void rcar_du_writeback_setup(struct rcar_du_crtc *rcrtc,
unsigned int i;
state = rcrtc->writeback.base.state;
if (!state || !state->writeback_job || !state->writeback_job->fb)
if (!state || !state->writeback_job)
return;
fb = state->writeback_job->fb;

5
drivers/gpu/drm/vc4/vc4_txp.c
View File

@ -229,7 +229,7 @@ static int vc4_txp_connector_atomic_check(struct drm_connector *conn,
int i;
conn_state = drm_atomic_get_new_connector_state(state, conn);
if (!conn_state->writeback_job || !conn_state->writeback_job->fb)
if (!conn_state->writeback_job)
return 0;
crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
@ -269,8 +269,7 @@ static void vc4_txp_connector_atomic_commit(struct drm_connector *conn,
u32 ctrl;
int i;
if (WARN_ON(!conn_state->writeback_job ||
!conn_state->writeback_job->fb))
if (WARN_ON(!conn_state->writeback_job))
return;
mode = &conn_state->crtc->state->adjusted_mode;