[PATCH 04/11] drm/msm: move fence code to it's own file
Rob Clark
robdclark at gmail.com
Fri Mar 18 23:14:57 UTC 2016
Signed-off-by: Rob Clark <robdclark at gmail.com>
---
drivers/gpu/drm/msm/Makefile | 1 +
drivers/gpu/drm/msm/msm_atomic.c | 1 +
drivers/gpu/drm/msm/msm_drv.c | 108 +-------------------------------
drivers/gpu/drm/msm/msm_drv.h | 27 +-------
drivers/gpu/drm/msm/msm_fence.c | 129 +++++++++++++++++++++++++++++++++++++++
drivers/gpu/drm/msm/msm_fence.h | 43 +++++++++++++
drivers/gpu/drm/msm/msm_gem.c | 1 +
drivers/gpu/drm/msm/msm_gpu.c | 1 +
8 files changed, 178 insertions(+), 133 deletions(-)
create mode 100644 drivers/gpu/drm/msm/msm_fence.c
create mode 100644 drivers/gpu/drm/msm/msm_fence.h
diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile
index cfec4bb..d2d9de8 100644
--- a/drivers/gpu/drm/msm/Makefile
+++ b/drivers/gpu/drm/msm/Makefile
@@ -26,6 +26,7 @@ msm-y := \
msm_debugfs.o \
msm_drv.o \
msm_fb.o \
+ msm_fence.o \
msm_gem.o \
msm_gem_prime.o \
msm_gem_submit.o \
diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c
index 7eb253b..3c0f7a8 100644
--- a/drivers/gpu/drm/msm/msm_atomic.c
+++ b/drivers/gpu/drm/msm/msm_atomic.c
@@ -18,6 +18,7 @@
#include "msm_drv.h"
#include "msm_kms.h"
#include "msm_gem.h"
+#include "msm_fence.h"
struct msm_commit {
struct drm_device *dev;
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 5e08ea9..6988285 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -17,6 +17,7 @@
#include "msm_drv.h"
#include "msm_debugfs.h"
+#include "msm_fence.h"
#include "msm_gpu.h"
#include "msm_kms.h"
@@ -540,113 +541,6 @@ static void msm_disable_vblank(struct drm_device *dev, unsigned int pipe)
}
/*
- * Fences:
- */
-
-int msm_wait_fence(struct drm_device *dev, uint32_t fence,
- ktime_t *timeout , bool interruptible)
-{
- struct msm_drm_private *priv = dev->dev_private;
- int ret;
-
- if (!priv->gpu)
- return 0;
-
- if (fence > priv->gpu->submitted_fence) {
- DRM_ERROR("waiting on invalid fence: %u (of %u)\n",
- fence, priv->gpu->submitted_fence);
- return -EINVAL;
- }
-
- if (!timeout) {
- /* no-wait: */
- ret = fence_completed(dev, fence) ? 0 : -EBUSY;
- } else {
- ktime_t now = ktime_get();
- unsigned long remaining_jiffies;
-
- if (ktime_compare(*timeout, now) < 0) {
- remaining_jiffies = 0;
- } else {
- ktime_t rem = ktime_sub(*timeout, now);
- struct timespec ts = ktime_to_timespec(rem);
- remaining_jiffies = timespec_to_jiffies(&ts);
- }
-
- if (interruptible)
- ret = wait_event_interruptible_timeout(priv->fence_event,
- fence_completed(dev, fence),
- remaining_jiffies);
- else
- ret = wait_event_timeout(priv->fence_event,
- fence_completed(dev, fence),
- remaining_jiffies);
-
- if (ret == 0) {
- DBG("timeout waiting for fence: %u (completed: %u)",
- fence, priv->completed_fence);
- ret = -ETIMEDOUT;
- } else if (ret != -ERESTARTSYS) {
- ret = 0;
- }
- }
-
- return ret;
-}
-
-int msm_queue_fence_cb(struct drm_device *dev,
- struct msm_fence_cb *cb, uint32_t fence)
-{
- struct msm_drm_private *priv = dev->dev_private;
- int ret = 0;
-
- mutex_lock(&dev->struct_mutex);
- if (!list_empty(&cb->work.entry)) {
- ret = -EINVAL;
- } else if (fence > priv->completed_fence) {
- cb->fence = fence;
- list_add_tail(&cb->work.entry, &priv->fence_cbs);
- } else {
- queue_work(priv->wq, &cb->work);
- }
- mutex_unlock(&dev->struct_mutex);
-
- return ret;
-}
-
-/* called from workqueue */
-void msm_update_fence(struct drm_device *dev, uint32_t fence)
-{
- struct msm_drm_private *priv = dev->dev_private;
-
- mutex_lock(&dev->struct_mutex);
- priv->completed_fence = max(fence, priv->completed_fence);
-
- while (!list_empty(&priv->fence_cbs)) {
- struct msm_fence_cb *cb;
-
- cb = list_first_entry(&priv->fence_cbs,
- struct msm_fence_cb, work.entry);
-
- if (cb->fence > priv->completed_fence)
- break;
-
- list_del_init(&cb->work.entry);
- queue_work(priv->wq, &cb->work);
- }
-
- mutex_unlock(&dev->struct_mutex);
-
- wake_up_all(&priv->fence_event);
-}
-
-void __msm_fence_worker(struct work_struct *work)
-{
- struct msm_fence_cb *cb = container_of(work, struct msm_fence_cb, work);
- cb->func(cb);
-}
-
-/*
* DRM ioctls:
*/
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 6980aa4..dfd8c8b 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -49,6 +49,7 @@ struct msm_mmu;
struct msm_rd_state;
struct msm_perf_state;
struct msm_gem_submit;
+struct msm_fence_cb;
#define NUM_DOMAINS 2 /* one for KMS, then one per gpu core (?) */
@@ -157,20 +158,6 @@ struct msm_format {
uint32_t pixel_format;
};
-/* callback from wq once fence has passed: */
-struct msm_fence_cb {
- struct work_struct work;
- uint32_t fence;
- void (*func)(struct msm_fence_cb *cb);
-};
-
-void __msm_fence_worker(struct work_struct *work);
-
-#define INIT_FENCE_CB(_cb, _func) do { \
- INIT_WORK(&(_cb)->work, __msm_fence_worker); \
- (_cb)->func = _func; \
- } while (0)
-
int msm_atomic_check(struct drm_device *dev,
struct drm_atomic_state *state);
int msm_atomic_commit(struct drm_device *dev,
@@ -178,12 +165,6 @@ int msm_atomic_commit(struct drm_device *dev,
int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
-int msm_wait_fence(struct drm_device *dev, uint32_t fence,
- ktime_t *timeout, bool interruptible);
-int msm_queue_fence_cb(struct drm_device *dev,
- struct msm_fence_cb *cb, uint32_t fence);
-void msm_update_fence(struct drm_device *dev, uint32_t fence);
-
int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
struct drm_file *file);
@@ -336,12 +317,6 @@ u32 msm_readl(const void __iomem *addr);
#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
#define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
-static inline bool fence_completed(struct drm_device *dev, uint32_t fence)
-{
- struct msm_drm_private *priv = dev->dev_private;
- return priv->completed_fence >= fence;
-}
-
static inline int align_pitch(int width, int bpp)
{
int bytespp = (bpp + 7) / 8;
diff --git a/drivers/gpu/drm/msm/msm_fence.c b/drivers/gpu/drm/msm/msm_fence.c
new file mode 100644
index 0000000..55a5f92
--- /dev/null
+++ b/drivers/gpu/drm/msm/msm_fence.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2013-2016 Red Hat
+ * Author: Rob Clark <robdclark at gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "msm_drv.h"
+#include "msm_fence.h"
+#include "msm_gpu.h"
+
+static inline bool fence_completed(struct drm_device *dev, uint32_t fence)
+{
+ struct msm_drm_private *priv = dev->dev_private;
+ return (int32_t)(priv->completed_fence - fence) >= 0;
+}
+
+int msm_wait_fence(struct drm_device *dev, uint32_t fence,
+ ktime_t *timeout , bool interruptible)
+{
+ struct msm_drm_private *priv = dev->dev_private;
+ int ret;
+
+ if (!priv->gpu)
+ return 0;
+
+ if (fence > priv->gpu->submitted_fence) {
+ DRM_ERROR("waiting on invalid fence: %u (of %u)\n",
+ fence, priv->gpu->submitted_fence);
+ return -EINVAL;
+ }
+
+ if (!timeout) {
+ /* no-wait: */
+ ret = fence_completed(dev, fence) ? 0 : -EBUSY;
+ } else {
+ ktime_t now = ktime_get();
+ unsigned long remaining_jiffies;
+
+ if (ktime_compare(*timeout, now) < 0) {
+ remaining_jiffies = 0;
+ } else {
+ ktime_t rem = ktime_sub(*timeout, now);
+ struct timespec ts = ktime_to_timespec(rem);
+ remaining_jiffies = timespec_to_jiffies(&ts);
+ }
+
+ if (interruptible)
+ ret = wait_event_interruptible_timeout(priv->fence_event,
+ fence_completed(dev, fence),
+ remaining_jiffies);
+ else
+ ret = wait_event_timeout(priv->fence_event,
+ fence_completed(dev, fence),
+ remaining_jiffies);
+
+ if (ret == 0) {
+ DBG("timeout waiting for fence: %u (completed: %u)",
+ fence, priv->completed_fence);
+ ret = -ETIMEDOUT;
+ } else if (ret != -ERESTARTSYS) {
+ ret = 0;
+ }
+ }
+
+ return ret;
+}
+
+int msm_queue_fence_cb(struct drm_device *dev,
+ struct msm_fence_cb *cb, uint32_t fence)
+{
+ struct msm_drm_private *priv = dev->dev_private;
+ int ret = 0;
+
+ mutex_lock(&dev->struct_mutex);
+ if (!list_empty(&cb->work.entry)) {
+ ret = -EINVAL;
+ } else if (fence > priv->completed_fence) {
+ cb->fence = fence;
+ list_add_tail(&cb->work.entry, &priv->fence_cbs);
+ } else {
+ queue_work(priv->wq, &cb->work);
+ }
+ mutex_unlock(&dev->struct_mutex);
+
+ return ret;
+}
+
+/* called from workqueue */
+void msm_update_fence(struct drm_device *dev, uint32_t fence)
+{
+ struct msm_drm_private *priv = dev->dev_private;
+
+ mutex_lock(&dev->struct_mutex);
+ priv->completed_fence = max(fence, priv->completed_fence);
+
+ while (!list_empty(&priv->fence_cbs)) {
+ struct msm_fence_cb *cb;
+
+ cb = list_first_entry(&priv->fence_cbs,
+ struct msm_fence_cb, work.entry);
+
+ if (cb->fence > priv->completed_fence)
+ break;
+
+ list_del_init(&cb->work.entry);
+ queue_work(priv->wq, &cb->work);
+ }
+
+ mutex_unlock(&dev->struct_mutex);
+
+ wake_up_all(&priv->fence_event);
+}
+
+void __msm_fence_worker(struct work_struct *work)
+{
+ struct msm_fence_cb *cb = container_of(work, struct msm_fence_cb, work);
+ cb->func(cb);
+}
diff --git a/drivers/gpu/drm/msm/msm_fence.h b/drivers/gpu/drm/msm/msm_fence.h
new file mode 100644
index 0000000..6ddb81c
--- /dev/null
+++ b/drivers/gpu/drm/msm/msm_fence.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2013-2016 Red Hat
+ * Author: Rob Clark <robdclark at gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __MSM_FENCE_H__
+#define __MSM_FENCE_H__
+
+#include "msm_drv.h"
+
+/* callback from wq once fence has passed: */
+struct msm_fence_cb {
+ struct work_struct work;
+ uint32_t fence;
+ void (*func)(struct msm_fence_cb *cb);
+};
+
+void __msm_fence_worker(struct work_struct *work);
+
+#define INIT_FENCE_CB(_cb, _func) do { \
+ INIT_WORK(&(_cb)->work, __msm_fence_worker); \
+ (_cb)->func = _func; \
+ } while (0)
+
+int msm_wait_fence(struct drm_device *dev, uint32_t fence,
+ ktime_t *timeout, bool interruptible);
+int msm_queue_fence_cb(struct drm_device *dev,
+ struct msm_fence_cb *cb, uint32_t fence);
+void msm_update_fence(struct drm_device *dev, uint32_t fence);
+
+#endif
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 3cedb8d..ef03ee7 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -21,6 +21,7 @@
#include <linux/pfn_t.h>
#include "msm_drv.h"
+#include "msm_fence.h"
#include "msm_gem.h"
#include "msm_gpu.h"
#include "msm_mmu.h"
diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 42e2284..5f6704c 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -18,6 +18,7 @@
#include "msm_gpu.h"
#include "msm_gem.h"
#include "msm_mmu.h"
+#include "msm_fence.h"
/*
--
2.5.0
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