* [PATCH 1/3] drm/v3d: Add support for submitting jobs to the TFU.
@ 2018-11-28 23:09 Eric Anholt
2018-11-28 23:09 ` [PATCH 2/3] drm/v3d: Drop the "dev" argument to lock/unlock of BO reservations Eric Anholt
` (2 more replies)
0 siblings, 3 replies; 7+ messages in thread
From: Eric Anholt @ 2018-11-28 23:09 UTC (permalink / raw)
To: dri-devel; +Cc: linux-kernel, Eric Anholt, Dave Emett
The TFU can copy from raster, UIF, and SAND input images to UIF output
images, with optional mipmap generation. This will certainly be
useful for media EGL image input, but is also useful immediately for
mipmap generation without bogging the V3D core down.
For now we only run the queue 1 job deep, and don't have any hang
recovery (though I don't think we should need it, with TFU). Queuing
multiple jobs in the HW will require synchronizing the YUV coefficient
regs updates since they don't get FIFOed with the job.
v2: Change the ioctl to IOW instead of IOWR, always set COEF0, explain
why TFU is AUTH, clarify the syncing docs, drop the unused TFU
interrupt regs (you're expected to use the hub's), don't take
&bo->base for NULL bos.
Signed-off-by: Eric Anholt <eric@anholt.net>
Cc: Dave Emett <david.emett@broadcom.com>
---
drivers/gpu/drm/v3d/v3d_drv.c | 15 ++-
drivers/gpu/drm/v3d/v3d_drv.h | 32 +++++-
drivers/gpu/drm/v3d/v3d_gem.c | 178 ++++++++++++++++++++++++++++----
drivers/gpu/drm/v3d/v3d_irq.c | 12 ++-
drivers/gpu/drm/v3d/v3d_regs.h | 49 +++++++++
drivers/gpu/drm/v3d/v3d_sched.c | 147 ++++++++++++++++++++++----
drivers/gpu/drm/v3d/v3d_trace.h | 20 ++++
include/uapi/drm/v3d_drm.h | 25 +++++
8 files changed, 426 insertions(+), 52 deletions(-)
diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
index 4857c0a63131..0c59a7e16275 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.c
+++ b/drivers/gpu/drm/v3d/v3d_drv.c
@@ -184,10 +184,15 @@ static int v3d_get_param_ioctl(struct drm_device *dev, void *data,
return 0;
}
- /* Any params that aren't just register reads would go here. */
- DRM_DEBUG("Unknown parameter %d\n", args->param);
- return -EINVAL;
+ switch (args->param) {
+ case DRM_V3D_PARAM_SUPPORTS_TFU:
+ args->value = 1;
+ return 0;
+ default:
+ DRM_DEBUG("Unknown parameter %d\n", args->param);
+ return -EINVAL;
+ }
}
static int
@@ -242,7 +247,8 @@ static const struct file_operations v3d_drm_fops = {
/* DRM_AUTH is required on SUBMIT_CL for now, while we don't have GMP
* protection between clients. Note that render nodes would be be
* able to submit CLs that could access BOs from clients authenticated
- * with the master node.
+ * with the master node. The TFU doesn't use the GMP, so it would
+ * need to stay DRM_AUTH until we do buffer size/offset validation.
*/
static const struct drm_ioctl_desc v3d_drm_ioctls[] = {
DRM_IOCTL_DEF_DRV(V3D_SUBMIT_CL, v3d_submit_cl_ioctl, DRM_RENDER_ALLOW | DRM_AUTH),
@@ -251,6 +257,7 @@ static const struct drm_ioctl_desc v3d_drm_ioctls[] = {
DRM_IOCTL_DEF_DRV(V3D_MMAP_BO, v3d_mmap_bo_ioctl, DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(V3D_GET_PARAM, v3d_get_param_ioctl, DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(V3D_GET_BO_OFFSET, v3d_get_bo_offset_ioctl, DRM_RENDER_ALLOW),
+ DRM_IOCTL_DEF_DRV(V3D_SUBMIT_TFU, v3d_submit_tfu_ioctl, DRM_RENDER_ALLOW | DRM_AUTH),
};
static const struct vm_operations_struct v3d_vm_ops = {
diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
index 83c55ab6e1c0..e0624ea72942 100644
--- a/drivers/gpu/drm/v3d/v3d_drv.h
+++ b/drivers/gpu/drm/v3d/v3d_drv.h
@@ -8,19 +8,18 @@
#include <drm/drm_gem.h>
#include <drm/gpu_scheduler.h>
#include <drm/drm_simple_kms_helper.h>
+#include "uapi/drm/v3d_drm.h"
#define GMP_GRANULARITY (128 * 1024)
-/* Enum for each of the V3D queues. We maintain various queue
- * tracking as an array because at some point we'll want to support
- * the TFU (texture formatting unit) as another queue.
- */
+/* Enum for each of the V3D queues. */
enum v3d_queue {
V3D_BIN,
V3D_RENDER,
+ V3D_TFU,
};
-#define V3D_MAX_QUEUES (V3D_RENDER + 1)
+#define V3D_MAX_QUEUES (V3D_TFU + 1)
struct v3d_queue_state {
struct drm_gpu_scheduler sched;
@@ -74,6 +73,7 @@ struct v3d_dev {
struct v3d_exec_info *bin_job;
struct v3d_exec_info *render_job;
+ struct v3d_tfu_job *tfu_job;
struct v3d_queue_state queue[V3D_MAX_QUEUES];
@@ -224,6 +224,25 @@ struct v3d_exec_info {
u32 qma, qms, qts;
};
+struct v3d_tfu_job {
+ struct drm_sched_job base;
+
+ struct drm_v3d_submit_tfu args;
+
+ /* An optional fence userspace can pass in for the job to depend on. */
+ struct dma_fence *in_fence;
+
+ /* v3d fence to be signaled by IRQ handler when the job is complete. */
+ struct dma_fence *done_fence;
+
+ struct v3d_dev *v3d;
+
+ struct kref refcount;
+
+ /* This is the array of BOs that were looked up at the start of exec. */
+ struct v3d_bo *bo[4];
+};
+
/**
* _wait_for - magic (register) wait macro
*
@@ -287,9 +306,12 @@ int v3d_gem_init(struct drm_device *dev);
void v3d_gem_destroy(struct drm_device *dev);
int v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
+int v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
int v3d_wait_bo_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
void v3d_exec_put(struct v3d_exec_info *exec);
+void v3d_tfu_job_put(struct v3d_tfu_job *exec);
void v3d_reset(struct v3d_dev *v3d);
void v3d_invalidate_caches(struct v3d_dev *v3d);
void v3d_flush_caches(struct v3d_dev *v3d);
diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
index 1e8947c7d954..41cbe2cdad50 100644
--- a/drivers/gpu/drm/v3d/v3d_gem.c
+++ b/drivers/gpu/drm/v3d/v3d_gem.c
@@ -207,26 +207,27 @@ v3d_flush_caches(struct v3d_dev *v3d)
}
static void
-v3d_attach_object_fences(struct v3d_exec_info *exec)
+v3d_attach_object_fences(struct v3d_bo **bos, int bo_count,
+ struct dma_fence *fence)
{
- struct dma_fence *out_fence = exec->render_done_fence;
int i;
- for (i = 0; i < exec->bo_count; i++) {
+ for (i = 0; i < bo_count; i++) {
/* XXX: Use shared fences for read-only objects. */
- reservation_object_add_excl_fence(exec->bo[i]->resv, out_fence);
+ reservation_object_add_excl_fence(bos[i]->resv, fence);
}
}
static void
v3d_unlock_bo_reservations(struct drm_device *dev,
- struct v3d_exec_info *exec,
+ struct v3d_bo **bos,
+ int bo_count,
struct ww_acquire_ctx *acquire_ctx)
{
int i;
- for (i = 0; i < exec->bo_count; i++)
- ww_mutex_unlock(&exec->bo[i]->resv->lock);
+ for (i = 0; i < bo_count; i++)
+ ww_mutex_unlock(&bos[i]->resv->lock);
ww_acquire_fini(acquire_ctx);
}
@@ -240,7 +241,8 @@ v3d_unlock_bo_reservations(struct drm_device *dev,
*/
static int
v3d_lock_bo_reservations(struct drm_device *dev,
- struct v3d_exec_info *exec,
+ struct v3d_bo **bos,
+ int bo_count,
struct ww_acquire_ctx *acquire_ctx)
{
int contended_lock = -1;
@@ -250,7 +252,7 @@ v3d_lock_bo_reservations(struct drm_device *dev,
retry:
if (contended_lock != -1) {
- struct v3d_bo *bo = exec->bo[contended_lock];
+ struct v3d_bo *bo = bos[contended_lock];
ret = ww_mutex_lock_slow_interruptible(&bo->resv->lock,
acquire_ctx);
@@ -260,20 +262,20 @@ v3d_lock_bo_reservations(struct drm_device *dev,
}
}
- for (i = 0; i < exec->bo_count; i++) {
+ for (i = 0; i < bo_count; i++) {
if (i == contended_lock)
continue;
- ret = ww_mutex_lock_interruptible(&exec->bo[i]->resv->lock,
+ ret = ww_mutex_lock_interruptible(&bos[i]->resv->lock,
acquire_ctx);
if (ret) {
int j;
for (j = 0; j < i; j++)
- ww_mutex_unlock(&exec->bo[j]->resv->lock);
+ ww_mutex_unlock(&bos[j]->resv->lock);
if (contended_lock != -1 && contended_lock >= i) {
- struct v3d_bo *bo = exec->bo[contended_lock];
+ struct v3d_bo *bo = bos[contended_lock];
ww_mutex_unlock(&bo->resv->lock);
}
@@ -293,10 +295,11 @@ v3d_lock_bo_reservations(struct drm_device *dev,
/* Reserve space for our shared (read-only) fence references,
* before we commit the CL to the hardware.
*/
- for (i = 0; i < exec->bo_count; i++) {
- ret = reservation_object_reserve_shared(exec->bo[i]->resv, 1);
+ for (i = 0; i < bo_count; i++) {
+ ret = reservation_object_reserve_shared(bos[i]->resv, 1);
if (ret) {
- v3d_unlock_bo_reservations(dev, exec, acquire_ctx);
+ v3d_unlock_bo_reservations(dev, bos, bo_count,
+ acquire_ctx);
return ret;
}
}
@@ -419,6 +422,33 @@ void v3d_exec_put(struct v3d_exec_info *exec)
kref_put(&exec->refcount, v3d_exec_cleanup);
}
+static void
+v3d_tfu_job_cleanup(struct kref *ref)
+{
+ struct v3d_tfu_job *job = container_of(ref, struct v3d_tfu_job,
+ refcount);
+ struct v3d_dev *v3d = job->v3d;
+ unsigned int i;
+
+ dma_fence_put(job->in_fence);
+ dma_fence_put(job->done_fence);
+
+ for (i = 0; i < ARRAY_SIZE(job->bo); i++) {
+ if (job->bo[i])
+ drm_gem_object_put_unlocked(&job->bo[i]->base);
+ }
+
+ pm_runtime_mark_last_busy(v3d->dev);
+ pm_runtime_put_autosuspend(v3d->dev);
+
+ kfree(job);
+}
+
+void v3d_tfu_job_put(struct v3d_tfu_job *job)
+{
+ kref_put(&job->refcount, v3d_tfu_job_cleanup);
+}
+
int
v3d_wait_bo_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
@@ -536,7 +566,8 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
if (ret)
goto fail;
- ret = v3d_lock_bo_reservations(dev, exec, &acquire_ctx);
+ ret = v3d_lock_bo_reservations(dev, exec->bo, exec->bo_count,
+ &acquire_ctx);
if (ret)
goto fail;
@@ -570,9 +601,10 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
&v3d_priv->sched_entity[V3D_RENDER]);
mutex_unlock(&v3d->sched_lock);
- v3d_attach_object_fences(exec);
+ v3d_attach_object_fences(exec->bo, exec->bo_count,
+ exec->render_done_fence);
- v3d_unlock_bo_reservations(dev, exec, &acquire_ctx);
+ v3d_unlock_bo_reservations(dev, exec->bo, exec->bo_count, &acquire_ctx);
/* Update the return sync object for the */
sync_out = drm_syncobj_find(file_priv, args->out_sync);
@@ -588,13 +620,119 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
fail_unreserve:
mutex_unlock(&v3d->sched_lock);
- v3d_unlock_bo_reservations(dev, exec, &acquire_ctx);
+ v3d_unlock_bo_reservations(dev, exec->bo, exec->bo_count, &acquire_ctx);
fail:
v3d_exec_put(exec);
return ret;
}
+/**
+ * v3d_submit_tfu_ioctl() - Submits a TFU (texture formatting) job to the V3D.
+ * @dev: DRM device
+ * @data: ioctl argument
+ * @file_priv: DRM file for this fd
+ *
+ * Userspace provides the register setup for the TFU, which we don't
+ * need to validate since the TFU is behind the MMU.
+ */
+int
+v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct v3d_dev *v3d = to_v3d_dev(dev);
+ struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
+ struct drm_v3d_submit_tfu *args = data;
+ struct v3d_tfu_job *job;
+ struct ww_acquire_ctx acquire_ctx;
+ struct drm_syncobj *sync_out;
+ struct dma_fence *sched_done_fence;
+ int ret = 0;
+ int bo_count;
+
+ job = kcalloc(1, sizeof(*job), GFP_KERNEL);
+ if (!job)
+ return -ENOMEM;
+
+ ret = pm_runtime_get_sync(v3d->dev);
+ if (ret < 0) {
+ kfree(job);
+ return ret;
+ }
+
+ kref_init(&job->refcount);
+
+ ret = drm_syncobj_find_fence(file_priv, args->in_sync,
+ 0, 0, &job->in_fence);
+ if (ret == -EINVAL)
+ goto fail;
+
+ job->args = *args;
+ job->v3d = v3d;
+
+ spin_lock(&file_priv->table_lock);
+ for (bo_count = 0; bo_count < ARRAY_SIZE(job->bo); bo_count++) {
+ struct drm_gem_object *bo;
+
+ if (!args->bo_handles[bo_count])
+ break;
+
+ bo = idr_find(&file_priv->object_idr,
+ args->bo_handles[bo_count]);
+ if (!bo) {
+ DRM_DEBUG("Failed to look up GEM BO %d: %d\n",
+ bo_count, args->bo_handles[bo_count]);
+ ret = -ENOENT;
+ spin_unlock(&file_priv->table_lock);
+ goto fail;
+ }
+ drm_gem_object_get(bo);
+ job->bo[bo_count] = to_v3d_bo(bo);
+ }
+ spin_unlock(&file_priv->table_lock);
+
+ ret = v3d_lock_bo_reservations(dev, job->bo, bo_count, &acquire_ctx);
+ if (ret)
+ goto fail;
+
+ mutex_lock(&v3d->sched_lock);
+ ret = drm_sched_job_init(&job->base,
+ &v3d_priv->sched_entity[V3D_TFU],
+ v3d_priv);
+ if (ret)
+ goto fail_unreserve;
+
+ sched_done_fence = dma_fence_get(&job->base.s_fence->finished);
+
+ kref_get(&job->refcount); /* put by scheduler job completion */
+ drm_sched_entity_push_job(&job->base, &v3d_priv->sched_entity[V3D_TFU]);
+ mutex_unlock(&v3d->sched_lock);
+
+ v3d_attach_object_fences(job->bo, bo_count, sched_done_fence);
+
+ v3d_unlock_bo_reservations(dev, job->bo, bo_count, &acquire_ctx);
+
+ /* Update the return sync object */
+ sync_out = drm_syncobj_find(file_priv, args->out_sync);
+ if (sync_out) {
+ drm_syncobj_replace_fence(sync_out, 0, sched_done_fence);
+ drm_syncobj_put(sync_out);
+ }
+ dma_fence_put(sched_done_fence);
+
+ v3d_tfu_job_put(job);
+
+ return 0;
+
+fail_unreserve:
+ mutex_unlock(&v3d->sched_lock);
+ v3d_unlock_bo_reservations(dev, job->bo, bo_count, &acquire_ctx);
+fail:
+ v3d_tfu_job_put(job);
+
+ return ret;
+}
+
int
v3d_gem_init(struct drm_device *dev)
{
diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
index e07514eb11b5..dd7a7b0bd5a1 100644
--- a/drivers/gpu/drm/v3d/v3d_irq.c
+++ b/drivers/gpu/drm/v3d/v3d_irq.c
@@ -4,8 +4,8 @@
/**
* DOC: Interrupt management for the V3D engine
*
- * When we take a binning or rendering flush done interrupt, we need
- * to signal the fence for that job so that the scheduler can queue up
+ * When we take a bin, render, or TFU done interrupt, we need to
+ * signal the fence for that job so that the scheduler can queue up
* the next one and unblock any waiters.
*
* When we take the binner out of memory interrupt, we need to
@@ -23,7 +23,8 @@
#define V3D_HUB_IRQS ((u32)(V3D_HUB_INT_MMU_WRV | \
V3D_HUB_INT_MMU_PTI | \
- V3D_HUB_INT_MMU_CAP))
+ V3D_HUB_INT_MMU_CAP | \
+ V3D_HUB_INT_TFUC))
static void
v3d_overflow_mem_work(struct work_struct *work)
@@ -117,6 +118,11 @@ v3d_hub_irq(int irq, void *arg)
/* Acknowledge the interrupts we're handling here. */
V3D_WRITE(V3D_HUB_INT_CLR, intsts);
+ if (intsts & V3D_HUB_INT_TFUC) {
+ dma_fence_signal(v3d->tfu_job->done_fence);
+ status = IRQ_HANDLED;
+ }
+
if (intsts & (V3D_HUB_INT_MMU_WRV |
V3D_HUB_INT_MMU_PTI |
V3D_HUB_INT_MMU_CAP)) {
diff --git a/drivers/gpu/drm/v3d/v3d_regs.h b/drivers/gpu/drm/v3d/v3d_regs.h
index c3a5e4e44f73..6ccdee9d47bd 100644
--- a/drivers/gpu/drm/v3d/v3d_regs.h
+++ b/drivers/gpu/drm/v3d/v3d_regs.h
@@ -86,6 +86,55 @@
# define V3D_TOP_GR_BRIDGE_SW_INIT_1 0x0000c
# define V3D_TOP_GR_BRIDGE_SW_INIT_1_V3D_CLK_108_SW_INIT BIT(0)
+#define V3D_TFU_CS 0x00400
+/* Stops current job, empties input fifo. */
+# define V3D_TFU_CS_TFURST BIT(31)
+# define V3D_TFU_CS_CVTCT_MASK V3D_MASK(23, 16)
+# define V3D_TFU_CS_CVTCT_SHIFT 16
+# define V3D_TFU_CS_NFREE_MASK V3D_MASK(13, 8)
+# define V3D_TFU_CS_NFREE_SHIFT 8
+# define V3D_TFU_CS_BUSY BIT(0)
+
+#define V3D_TFU_SU 0x00404
+/* Interrupt when FINTTHR input slots are free (0 = disabled) */
+# define V3D_TFU_SU_FINTTHR_MASK V3D_MASK(13, 8)
+# define V3D_TFU_SU_FINTTHR_SHIFT 8
+/* Skips resetting the CRC at the start of CRC generation. */
+# define V3D_TFU_SU_CRCCHAIN BIT(4)
+/* skips writes, computes CRC of the image. miplevels must be 0. */
+# define V3D_TFU_SU_CRC BIT(3)
+# define V3D_TFU_SU_THROTTLE_MASK V3D_MASK(1, 0)
+# define V3D_TFU_SU_THROTTLE_SHIFT 0
+
+#define V3D_TFU_ICFG 0x00408
+/* Interrupt when the conversion is complete. */
+# define V3D_TFU_ICFG_IOC BIT(0)
+
+/* Input Image Address */
+#define V3D_TFU_IIA 0x0040c
+/* Input Chroma Address */
+#define V3D_TFU_ICA 0x00410
+/* Input Image Stride */
+#define V3D_TFU_IIS 0x00414
+/* Input Image U-Plane Address */
+#define V3D_TFU_IUA 0x00418
+/* Output Image Address */
+#define V3D_TFU_IOA 0x0041c
+/* Image Output Size */
+#define V3D_TFU_IOS 0x00420
+/* TFU YUV Coefficient 0 */
+#define V3D_TFU_COEF0 0x00424
+/* Use these regs instead of the defaults. */
+# define V3D_TFU_COEF0_USECOEF BIT(31)
+/* TFU YUV Coefficient 1 */
+#define V3D_TFU_COEF1 0x00428
+/* TFU YUV Coefficient 2 */
+#define V3D_TFU_COEF2 0x0042c
+/* TFU YUV Coefficient 3 */
+#define V3D_TFU_COEF3 0x00430
+
+#define V3D_TFU_CRC 0x00434
+
/* Per-MMU registers. */
#define V3D_MMUC_CONTROL 0x01000
diff --git a/drivers/gpu/drm/v3d/v3d_sched.c b/drivers/gpu/drm/v3d/v3d_sched.c
index e1f2aab0717b..0d13c722c8df 100644
--- a/drivers/gpu/drm/v3d/v3d_sched.c
+++ b/drivers/gpu/drm/v3d/v3d_sched.c
@@ -30,6 +30,12 @@ to_v3d_job(struct drm_sched_job *sched_job)
return container_of(sched_job, struct v3d_job, base);
}
+static struct v3d_tfu_job *
+to_tfu_job(struct drm_sched_job *sched_job)
+{
+ return container_of(sched_job, struct v3d_tfu_job, base);
+}
+
static void
v3d_job_free(struct drm_sched_job *sched_job)
{
@@ -38,6 +44,14 @@ v3d_job_free(struct drm_sched_job *sched_job)
v3d_exec_put(job->exec);
}
+static void
+v3d_tfu_job_free(struct drm_sched_job *sched_job)
+{
+ struct v3d_tfu_job *job = to_tfu_job(sched_job);
+
+ v3d_tfu_job_put(job);
+}
+
/**
* Returns the fences that the bin or render job depends on, one by one.
* v3d_job_run() won't be called until all of them have been signaled.
@@ -76,6 +90,27 @@ v3d_job_dependency(struct drm_sched_job *sched_job,
return fence;
}
+/**
+ * Returns the fences that the TFU job depends on, one by one.
+ * v3d_tfu_job_run() won't be called until all of them have been
+ * signaled.
+ */
+static struct dma_fence *
+v3d_tfu_job_dependency(struct drm_sched_job *sched_job,
+ struct drm_sched_entity *s_entity)
+{
+ struct v3d_tfu_job *job = to_tfu_job(sched_job);
+ struct dma_fence *fence;
+
+ fence = job->in_fence;
+ if (fence) {
+ job->in_fence = NULL;
+ return fence;
+ }
+
+ return NULL;
+}
+
static struct dma_fence *v3d_job_run(struct drm_sched_job *sched_job)
{
struct v3d_job *job = to_v3d_job(sched_job);
@@ -147,6 +182,71 @@ static struct dma_fence *v3d_job_run(struct drm_sched_job *sched_job)
return fence;
}
+static struct dma_fence *
+v3d_tfu_job_run(struct drm_sched_job *sched_job)
+{
+ struct v3d_tfu_job *job = to_tfu_job(sched_job);
+ struct v3d_dev *v3d = job->v3d;
+ struct drm_device *dev = &v3d->drm;
+ struct dma_fence *fence;
+
+ fence = v3d_fence_create(v3d, V3D_TFU);
+ if (IS_ERR(fence))
+ return NULL;
+
+ v3d->tfu_job = job;
+ if (job->done_fence)
+ dma_fence_put(job->done_fence);
+ job->done_fence = dma_fence_get(fence);
+
+ trace_v3d_submit_tfu(dev, to_v3d_fence(fence)->seqno);
+
+ V3D_WRITE(V3D_TFU_IIA, job->args.iia);
+ V3D_WRITE(V3D_TFU_IIS, job->args.iis);
+ V3D_WRITE(V3D_TFU_ICA, job->args.ica);
+ V3D_WRITE(V3D_TFU_IUA, job->args.iua);
+ V3D_WRITE(V3D_TFU_IOA, job->args.ioa);
+ V3D_WRITE(V3D_TFU_IOS, job->args.ios);
+ V3D_WRITE(V3D_TFU_COEF0, job->args.coef[0]);
+ if (job->args.coef[0] & V3D_TFU_COEF0_USECOEF) {
+ V3D_WRITE(V3D_TFU_COEF1, job->args.coef[1]);
+ V3D_WRITE(V3D_TFU_COEF2, job->args.coef[2]);
+ V3D_WRITE(V3D_TFU_COEF3, job->args.coef[3]);
+ }
+ /* ICFG kicks off the job. */
+ V3D_WRITE(V3D_TFU_ICFG, job->args.icfg | V3D_TFU_ICFG_IOC);
+
+ return fence;
+}
+
+static void
+v3d_gpu_reset_for_timeout(struct v3d_dev *v3d, struct drm_sched_job *sched_job)
+{
+ enum v3d_queue q;
+
+ mutex_lock(&v3d->reset_lock);
+
+ /* block scheduler */
+ for (q = 0; q < V3D_MAX_QUEUES; q++) {
+ struct drm_gpu_scheduler *sched = &v3d->queue[q].sched;
+
+ kthread_park(sched->thread);
+ drm_sched_hw_job_reset(sched, (sched_job->sched == sched ?
+ sched_job : NULL));
+ }
+
+ /* get the GPU back into the init state */
+ v3d_reset(v3d);
+
+ /* Unblock schedulers and restart their jobs. */
+ for (q = 0; q < V3D_MAX_QUEUES; q++) {
+ drm_sched_job_recovery(&v3d->queue[q].sched);
+ kthread_unpark(v3d->queue[q].sched.thread);
+ }
+
+ mutex_unlock(&v3d->reset_lock);
+}
+
static void
v3d_job_timedout(struct drm_sched_job *sched_job)
{
@@ -154,7 +254,6 @@ v3d_job_timedout(struct drm_sched_job *sched_job)
struct v3d_exec_info *exec = job->exec;
struct v3d_dev *v3d = exec->v3d;
enum v3d_queue job_q = job == &exec->bin ? V3D_BIN : V3D_RENDER;
- enum v3d_queue q;
u32 ctca = V3D_CORE_READ(0, V3D_CLE_CTNCA(job_q));
u32 ctra = V3D_CORE_READ(0, V3D_CLE_CTNRA(job_q));
@@ -173,27 +272,15 @@ v3d_job_timedout(struct drm_sched_job *sched_job)
return;
}
- mutex_lock(&v3d->reset_lock);
-
- /* block scheduler */
- for (q = 0; q < V3D_MAX_QUEUES; q++) {
- struct drm_gpu_scheduler *sched = &v3d->queue[q].sched;
-
- kthread_park(sched->thread);
- drm_sched_hw_job_reset(sched, (sched_job->sched == sched ?
- sched_job : NULL));
- }
-
- /* get the GPU back into the init state */
- v3d_reset(v3d);
+ v3d_gpu_reset_for_timeout(v3d, sched_job);
+}
- /* Unblock schedulers and restart their jobs. */
- for (q = 0; q < V3D_MAX_QUEUES; q++) {
- drm_sched_job_recovery(&v3d->queue[q].sched);
- kthread_unpark(v3d->queue[q].sched.thread);
- }
+static void
+v3d_tfu_job_timedout(struct drm_sched_job *sched_job)
+{
+ struct v3d_tfu_job *job = to_tfu_job(sched_job);
- mutex_unlock(&v3d->reset_lock);
+ v3d_gpu_reset_for_timeout(job->v3d, sched_job);
}
static const struct drm_sched_backend_ops v3d_sched_ops = {
@@ -203,6 +290,13 @@ static const struct drm_sched_backend_ops v3d_sched_ops = {
.free_job = v3d_job_free
};
+static const struct drm_sched_backend_ops v3d_tfu_sched_ops = {
+ .dependency = v3d_tfu_job_dependency,
+ .run_job = v3d_tfu_job_run,
+ .timedout_job = v3d_tfu_job_timedout,
+ .free_job = v3d_tfu_job_free
+};
+
int
v3d_sched_init(struct v3d_dev *v3d)
{
@@ -233,6 +327,19 @@ v3d_sched_init(struct v3d_dev *v3d)
return ret;
}
+ ret = drm_sched_init(&v3d->queue[V3D_TFU].sched,
+ &v3d_tfu_sched_ops,
+ hw_jobs_limit, job_hang_limit,
+ msecs_to_jiffies(hang_limit_ms),
+ "v3d_tfu");
+ if (ret) {
+ dev_err(v3d->dev, "Failed to create TFU scheduler: %d.",
+ ret);
+ drm_sched_fini(&v3d->queue[V3D_RENDER].sched);
+ drm_sched_fini(&v3d->queue[V3D_BIN].sched);
+ return ret;
+ }
+
return 0;
}
diff --git a/drivers/gpu/drm/v3d/v3d_trace.h b/drivers/gpu/drm/v3d/v3d_trace.h
index 85dd351e1e09..f54ed9cd3444 100644
--- a/drivers/gpu/drm/v3d/v3d_trace.h
+++ b/drivers/gpu/drm/v3d/v3d_trace.h
@@ -42,6 +42,26 @@ TRACE_EVENT(v3d_submit_cl,
__entry->ctnqea)
);
+TRACE_EVENT(v3d_submit_tfu,
+ TP_PROTO(struct drm_device *dev,
+ uint64_t seqno),
+ TP_ARGS(dev, seqno),
+
+ TP_STRUCT__entry(
+ __field(u32, dev)
+ __field(u64, seqno)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = dev->primary->index;
+ __entry->seqno = seqno;
+ ),
+
+ TP_printk("dev=%u, seqno=%llu",
+ __entry->dev,
+ __entry->seqno)
+);
+
TRACE_EVENT(v3d_reset_begin,
TP_PROTO(struct drm_device *dev),
TP_ARGS(dev),
diff --git a/include/uapi/drm/v3d_drm.h b/include/uapi/drm/v3d_drm.h
index b1e5de076b0f..35c7d813c66e 100644
--- a/include/uapi/drm/v3d_drm.h
+++ b/include/uapi/drm/v3d_drm.h
@@ -36,6 +36,7 @@ extern "C" {
#define DRM_V3D_MMAP_BO 0x03
#define DRM_V3D_GET_PARAM 0x04
#define DRM_V3D_GET_BO_OFFSET 0x05
+#define DRM_V3D_SUBMIT_TFU 0x06
#define DRM_IOCTL_V3D_SUBMIT_CL DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_CL, struct drm_v3d_submit_cl)
#define DRM_IOCTL_V3D_WAIT_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_WAIT_BO, struct drm_v3d_wait_bo)
@@ -43,6 +44,7 @@ extern "C" {
#define DRM_IOCTL_V3D_MMAP_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_MMAP_BO, struct drm_v3d_mmap_bo)
#define DRM_IOCTL_V3D_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_GET_PARAM, struct drm_v3d_get_param)
#define DRM_IOCTL_V3D_GET_BO_OFFSET DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_GET_BO_OFFSET, struct drm_v3d_get_bo_offset)
+#define DRM_IOCTL_V3D_SUBMIT_TFU DRM_IOW(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_TFU, struct drm_v3d_submit_tfu)
/**
* struct drm_v3d_submit_cl - ioctl argument for submitting commands to the 3D
@@ -179,6 +181,7 @@ enum drm_v3d_param {
DRM_V3D_PARAM_V3D_CORE0_IDENT0,
DRM_V3D_PARAM_V3D_CORE0_IDENT1,
DRM_V3D_PARAM_V3D_CORE0_IDENT2,
+ DRM_V3D_PARAM_SUPPORTS_TFU,
};
struct drm_v3d_get_param {
@@ -197,6 +200,28 @@ struct drm_v3d_get_bo_offset {
__u32 offset;
};
+struct drm_v3d_submit_tfu {
+ __u32 icfg;
+ __u32 iia;
+ __u32 iis;
+ __u32 ica;
+ __u32 iua;
+ __u32 ioa;
+ __u32 ios;
+ __u32 coef[4];
+ /* First handle is the output BO, following are other inputs.
+ * 0 for unused.
+ */
+ __u32 bo_handles[4];
+ /* sync object to block on before running the TFU job. Each TFU
+ * job will execute in the order submitted to its FD. Synchronization
+ * against rendering jobs requires using sync objects.
+ */
+ __u32 in_sync;
+ /* Sync object to signal when the TFU job is done. */
+ __u32 out_sync;
+};
+
#if defined(__cplusplus)
}
#endif
--
2.20.0.rc1
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 2/3] drm/v3d: Drop the "dev" argument to lock/unlock of BO reservations.
2018-11-28 23:09 [PATCH 1/3] drm/v3d: Add support for submitting jobs to the TFU Eric Anholt
@ 2018-11-28 23:09 ` Eric Anholt
2018-11-29 9:36 ` Daniel Vetter
2018-11-28 23:09 ` [PATCH 3/3] drm/v3d: Fix prime imports of buffers from other drivers Eric Anholt
2018-11-29 15:20 ` [PATCH 1/3] drm/v3d: Add support for submitting jobs to the TFU Dave Emett
2 siblings, 1 reply; 7+ messages in thread
From: Eric Anholt @ 2018-11-28 23:09 UTC (permalink / raw)
To: dri-devel; +Cc: linux-kernel, Eric Anholt, Dave Emett
They were unused, as Dave Emett noticed in TFU review.
Signed-off-by: Eric Anholt <eric@anholt.net>
Cc: Dave Emett <david.emett@broadcom.com>
---
drivers/gpu/drm/v3d/v3d_gem.c | 20 +++++++++-----------
1 file changed, 9 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
index 41cbe2cdad50..778657d9b6e7 100644
--- a/drivers/gpu/drm/v3d/v3d_gem.c
+++ b/drivers/gpu/drm/v3d/v3d_gem.c
@@ -219,8 +219,7 @@ v3d_attach_object_fences(struct v3d_bo **bos, int bo_count,
}
static void
-v3d_unlock_bo_reservations(struct drm_device *dev,
- struct v3d_bo **bos,
+v3d_unlock_bo_reservations(struct v3d_bo **bos,
int bo_count,
struct ww_acquire_ctx *acquire_ctx)
{
@@ -240,8 +239,7 @@ v3d_unlock_bo_reservations(struct drm_device *dev,
* to v3d, so we don't attach dma-buf fences to them.
*/
static int
-v3d_lock_bo_reservations(struct drm_device *dev,
- struct v3d_bo **bos,
+v3d_lock_bo_reservations(struct v3d_bo **bos,
int bo_count,
struct ww_acquire_ctx *acquire_ctx)
{
@@ -298,7 +296,7 @@ v3d_lock_bo_reservations(struct drm_device *dev,
for (i = 0; i < bo_count; i++) {
ret = reservation_object_reserve_shared(bos[i]->resv, 1);
if (ret) {
- v3d_unlock_bo_reservations(dev, bos, bo_count,
+ v3d_unlock_bo_reservations(bos, bo_count,
acquire_ctx);
return ret;
}
@@ -566,7 +564,7 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
if (ret)
goto fail;
- ret = v3d_lock_bo_reservations(dev, exec->bo, exec->bo_count,
+ ret = v3d_lock_bo_reservations(exec->bo, exec->bo_count,
&acquire_ctx);
if (ret)
goto fail;
@@ -604,7 +602,7 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
v3d_attach_object_fences(exec->bo, exec->bo_count,
exec->render_done_fence);
- v3d_unlock_bo_reservations(dev, exec->bo, exec->bo_count, &acquire_ctx);
+ v3d_unlock_bo_reservations(exec->bo, exec->bo_count, &acquire_ctx);
/* Update the return sync object for the */
sync_out = drm_syncobj_find(file_priv, args->out_sync);
@@ -620,7 +618,7 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
fail_unreserve:
mutex_unlock(&v3d->sched_lock);
- v3d_unlock_bo_reservations(dev, exec->bo, exec->bo_count, &acquire_ctx);
+ v3d_unlock_bo_reservations(exec->bo, exec->bo_count, &acquire_ctx);
fail:
v3d_exec_put(exec);
@@ -691,7 +689,7 @@ v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
}
spin_unlock(&file_priv->table_lock);
- ret = v3d_lock_bo_reservations(dev, job->bo, bo_count, &acquire_ctx);
+ ret = v3d_lock_bo_reservations(job->bo, bo_count, &acquire_ctx);
if (ret)
goto fail;
@@ -710,7 +708,7 @@ v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
v3d_attach_object_fences(job->bo, bo_count, sched_done_fence);
- v3d_unlock_bo_reservations(dev, job->bo, bo_count, &acquire_ctx);
+ v3d_unlock_bo_reservations(job->bo, bo_count, &acquire_ctx);
/* Update the return sync object */
sync_out = drm_syncobj_find(file_priv, args->out_sync);
@@ -726,7 +724,7 @@ v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
fail_unreserve:
mutex_unlock(&v3d->sched_lock);
- v3d_unlock_bo_reservations(dev, job->bo, bo_count, &acquire_ctx);
+ v3d_unlock_bo_reservations(job->bo, bo_count, &acquire_ctx);
fail:
v3d_tfu_job_put(job);
--
2.20.0.rc1
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 3/3] drm/v3d: Fix prime imports of buffers from other drivers.
2018-11-28 23:09 [PATCH 1/3] drm/v3d: Add support for submitting jobs to the TFU Eric Anholt
2018-11-28 23:09 ` [PATCH 2/3] drm/v3d: Drop the "dev" argument to lock/unlock of BO reservations Eric Anholt
@ 2018-11-28 23:09 ` Eric Anholt
2018-11-29 9:38 ` Daniel Vetter
2018-11-29 17:37 ` Dave Emett
2018-11-29 15:20 ` [PATCH 1/3] drm/v3d: Add support for submitting jobs to the TFU Dave Emett
2 siblings, 2 replies; 7+ messages in thread
From: Eric Anholt @ 2018-11-28 23:09 UTC (permalink / raw)
To: dri-devel; +Cc: linux-kernel, Eric Anholt, Dave Emett
v3d_bo_get_pages() checks this to decide to map the imported buffer
instead of the backing shmem file. The caller was about to set this
value anyway, and there's no error path in between. Ideally we
wouldn't even allocate the shmem file for our imports, but that's a
more invasive fix.
Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes: 57692c94dcbe ("drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+")
Cc: Dave Emett <david.emett@broadcom.com>
---
I've been sitting on this one because I don't like it and was hoping
the shmem library would pan out. This is a useful patch for now,
though.
drivers/gpu/drm/v3d/v3d_bo.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/v3d/v3d_bo.c b/drivers/gpu/drm/v3d/v3d_bo.c
index 54d96518a131..a08766d39eab 100644
--- a/drivers/gpu/drm/v3d/v3d_bo.c
+++ b/drivers/gpu/drm/v3d/v3d_bo.c
@@ -293,6 +293,7 @@ v3d_prime_import_sg_table(struct drm_device *dev,
bo->resv = attach->dmabuf->resv;
bo->sgt = sgt;
+ obj->import_attach = attach;
v3d_bo_get_pages(bo);
v3d_mmu_insert_ptes(bo);
--
2.20.0.rc1
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH 2/3] drm/v3d: Drop the "dev" argument to lock/unlock of BO reservations.
2018-11-28 23:09 ` [PATCH 2/3] drm/v3d: Drop the "dev" argument to lock/unlock of BO reservations Eric Anholt
@ 2018-11-29 9:36 ` Daniel Vetter
0 siblings, 0 replies; 7+ messages in thread
From: Daniel Vetter @ 2018-11-29 9:36 UTC (permalink / raw)
To: Eric Anholt; +Cc: dri-devel, Dave Emett, linux-kernel
On Wed, Nov 28, 2018 at 03:09:26PM -0800, Eric Anholt wrote:
> They were unused, as Dave Emett noticed in TFU review.
>
> Signed-off-by: Eric Anholt <eric@anholt.net>
> Cc: Dave Emett <david.emett@broadcom.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> ---
> drivers/gpu/drm/v3d/v3d_gem.c | 20 +++++++++-----------
> 1 file changed, 9 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
> index 41cbe2cdad50..778657d9b6e7 100644
> --- a/drivers/gpu/drm/v3d/v3d_gem.c
> +++ b/drivers/gpu/drm/v3d/v3d_gem.c
> @@ -219,8 +219,7 @@ v3d_attach_object_fences(struct v3d_bo **bos, int bo_count,
> }
>
> static void
> -v3d_unlock_bo_reservations(struct drm_device *dev,
> - struct v3d_bo **bos,
> +v3d_unlock_bo_reservations(struct v3d_bo **bos,
> int bo_count,
> struct ww_acquire_ctx *acquire_ctx)
> {
> @@ -240,8 +239,7 @@ v3d_unlock_bo_reservations(struct drm_device *dev,
> * to v3d, so we don't attach dma-buf fences to them.
> */
> static int
> -v3d_lock_bo_reservations(struct drm_device *dev,
> - struct v3d_bo **bos,
> +v3d_lock_bo_reservations(struct v3d_bo **bos,
> int bo_count,
> struct ww_acquire_ctx *acquire_ctx)
> {
> @@ -298,7 +296,7 @@ v3d_lock_bo_reservations(struct drm_device *dev,
> for (i = 0; i < bo_count; i++) {
> ret = reservation_object_reserve_shared(bos[i]->resv, 1);
> if (ret) {
> - v3d_unlock_bo_reservations(dev, bos, bo_count,
> + v3d_unlock_bo_reservations(bos, bo_count,
> acquire_ctx);
> return ret;
> }
> @@ -566,7 +564,7 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
> if (ret)
> goto fail;
>
> - ret = v3d_lock_bo_reservations(dev, exec->bo, exec->bo_count,
> + ret = v3d_lock_bo_reservations(exec->bo, exec->bo_count,
> &acquire_ctx);
> if (ret)
> goto fail;
> @@ -604,7 +602,7 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
> v3d_attach_object_fences(exec->bo, exec->bo_count,
> exec->render_done_fence);
>
> - v3d_unlock_bo_reservations(dev, exec->bo, exec->bo_count, &acquire_ctx);
> + v3d_unlock_bo_reservations(exec->bo, exec->bo_count, &acquire_ctx);
>
> /* Update the return sync object for the */
> sync_out = drm_syncobj_find(file_priv, args->out_sync);
> @@ -620,7 +618,7 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
>
> fail_unreserve:
> mutex_unlock(&v3d->sched_lock);
> - v3d_unlock_bo_reservations(dev, exec->bo, exec->bo_count, &acquire_ctx);
> + v3d_unlock_bo_reservations(exec->bo, exec->bo_count, &acquire_ctx);
> fail:
> v3d_exec_put(exec);
>
> @@ -691,7 +689,7 @@ v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
> }
> spin_unlock(&file_priv->table_lock);
>
> - ret = v3d_lock_bo_reservations(dev, job->bo, bo_count, &acquire_ctx);
> + ret = v3d_lock_bo_reservations(job->bo, bo_count, &acquire_ctx);
> if (ret)
> goto fail;
>
> @@ -710,7 +708,7 @@ v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
>
> v3d_attach_object_fences(job->bo, bo_count, sched_done_fence);
>
> - v3d_unlock_bo_reservations(dev, job->bo, bo_count, &acquire_ctx);
> + v3d_unlock_bo_reservations(job->bo, bo_count, &acquire_ctx);
>
> /* Update the return sync object */
> sync_out = drm_syncobj_find(file_priv, args->out_sync);
> @@ -726,7 +724,7 @@ v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
>
> fail_unreserve:
> mutex_unlock(&v3d->sched_lock);
> - v3d_unlock_bo_reservations(dev, job->bo, bo_count, &acquire_ctx);
> + v3d_unlock_bo_reservations(job->bo, bo_count, &acquire_ctx);
> fail:
> v3d_tfu_job_put(job);
>
> --
> 2.20.0.rc1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 3/3] drm/v3d: Fix prime imports of buffers from other drivers.
2018-11-28 23:09 ` [PATCH 3/3] drm/v3d: Fix prime imports of buffers from other drivers Eric Anholt
@ 2018-11-29 9:38 ` Daniel Vetter
2018-11-29 17:37 ` Dave Emett
1 sibling, 0 replies; 7+ messages in thread
From: Daniel Vetter @ 2018-11-29 9:38 UTC (permalink / raw)
To: Eric Anholt; +Cc: dri-devel, Dave Emett, linux-kernel
On Wed, Nov 28, 2018 at 03:09:27PM -0800, Eric Anholt wrote:
> v3d_bo_get_pages() checks this to decide to map the imported buffer
> instead of the backing shmem file. The caller was about to set this
> value anyway, and there's no error path in between. Ideally we
> wouldn't even allocate the shmem file for our imports, but that's a
> more invasive fix.
>
> Signed-off-by: Eric Anholt <eric@anholt.net>
> Fixes: 57692c94dcbe ("drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+")
> Cc: Dave Emett <david.emett@broadcom.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> ---
>
> I've been sitting on this one because I don't like it and was hoping
> the shmem library would pan out. This is a useful patch for now,
> though.
>
> drivers/gpu/drm/v3d/v3d_bo.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/v3d/v3d_bo.c b/drivers/gpu/drm/v3d/v3d_bo.c
> index 54d96518a131..a08766d39eab 100644
> --- a/drivers/gpu/drm/v3d/v3d_bo.c
> +++ b/drivers/gpu/drm/v3d/v3d_bo.c
> @@ -293,6 +293,7 @@ v3d_prime_import_sg_table(struct drm_device *dev,
> bo->resv = attach->dmabuf->resv;
>
> bo->sgt = sgt;
> + obj->import_attach = attach;
> v3d_bo_get_pages(bo);
>
> v3d_mmu_insert_ptes(bo);
> --
> 2.20.0.rc1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 1/3] drm/v3d: Add support for submitting jobs to the TFU.
2018-11-28 23:09 [PATCH 1/3] drm/v3d: Add support for submitting jobs to the TFU Eric Anholt
2018-11-28 23:09 ` [PATCH 2/3] drm/v3d: Drop the "dev" argument to lock/unlock of BO reservations Eric Anholt
2018-11-28 23:09 ` [PATCH 3/3] drm/v3d: Fix prime imports of buffers from other drivers Eric Anholt
@ 2018-11-29 15:20 ` Dave Emett
2 siblings, 0 replies; 7+ messages in thread
From: Dave Emett @ 2018-11-29 15:20 UTC (permalink / raw)
To: Eric Anholt; +Cc: dri-devel, linux-kernel
On Wed, 28 Nov 2018 at 23:09, Eric Anholt <eric@anholt.net> wrote:
>
> The TFU can copy from raster, UIF, and SAND input images to UIF output
> images, with optional mipmap generation. This will certainly be
> useful for media EGL image input, but is also useful immediately for
> mipmap generation without bogging the V3D core down.
>
> For now we only run the queue 1 job deep, and don't have any hang
> recovery (though I don't think we should need it, with TFU). Queuing
> multiple jobs in the HW will require synchronizing the YUV coefficient
> regs updates since they don't get FIFOed with the job.
>
> v2: Change the ioctl to IOW instead of IOWR, always set COEF0, explain
> why TFU is AUTH, clarify the syncing docs, drop the unused TFU
> interrupt regs (you're expected to use the hub's), don't take
> &bo->base for NULL bos.
>
> Signed-off-by: Eric Anholt <eric@anholt.net>
> Cc: Dave Emett <david.emett@broadcom.com>
Reviewed-by: Dave Emett <david.emett@broadcom.com>
> ---
> drivers/gpu/drm/v3d/v3d_drv.c | 15 ++-
> drivers/gpu/drm/v3d/v3d_drv.h | 32 +++++-
> drivers/gpu/drm/v3d/v3d_gem.c | 178 ++++++++++++++++++++++++++++----
> drivers/gpu/drm/v3d/v3d_irq.c | 12 ++-
> drivers/gpu/drm/v3d/v3d_regs.h | 49 +++++++++
> drivers/gpu/drm/v3d/v3d_sched.c | 147 ++++++++++++++++++++++----
> drivers/gpu/drm/v3d/v3d_trace.h | 20 ++++
> include/uapi/drm/v3d_drm.h | 25 +++++
> 8 files changed, 426 insertions(+), 52 deletions(-)
>
> diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
> index 4857c0a63131..0c59a7e16275 100644
> --- a/drivers/gpu/drm/v3d/v3d_drv.c
> +++ b/drivers/gpu/drm/v3d/v3d_drv.c
> @@ -184,10 +184,15 @@ static int v3d_get_param_ioctl(struct drm_device *dev, void *data,
> return 0;
> }
>
> - /* Any params that aren't just register reads would go here. */
>
> - DRM_DEBUG("Unknown parameter %d\n", args->param);
> - return -EINVAL;
> + switch (args->param) {
> + case DRM_V3D_PARAM_SUPPORTS_TFU:
> + args->value = 1;
> + return 0;
> + default:
> + DRM_DEBUG("Unknown parameter %d\n", args->param);
> + return -EINVAL;
> + }
> }
>
> static int
> @@ -242,7 +247,8 @@ static const struct file_operations v3d_drm_fops = {
> /* DRM_AUTH is required on SUBMIT_CL for now, while we don't have GMP
> * protection between clients. Note that render nodes would be be
> * able to submit CLs that could access BOs from clients authenticated
> - * with the master node.
> + * with the master node. The TFU doesn't use the GMP, so it would
> + * need to stay DRM_AUTH until we do buffer size/offset validation.
> */
> static const struct drm_ioctl_desc v3d_drm_ioctls[] = {
> DRM_IOCTL_DEF_DRV(V3D_SUBMIT_CL, v3d_submit_cl_ioctl, DRM_RENDER_ALLOW | DRM_AUTH),
> @@ -251,6 +257,7 @@ static const struct drm_ioctl_desc v3d_drm_ioctls[] = {
> DRM_IOCTL_DEF_DRV(V3D_MMAP_BO, v3d_mmap_bo_ioctl, DRM_RENDER_ALLOW),
> DRM_IOCTL_DEF_DRV(V3D_GET_PARAM, v3d_get_param_ioctl, DRM_RENDER_ALLOW),
> DRM_IOCTL_DEF_DRV(V3D_GET_BO_OFFSET, v3d_get_bo_offset_ioctl, DRM_RENDER_ALLOW),
> + DRM_IOCTL_DEF_DRV(V3D_SUBMIT_TFU, v3d_submit_tfu_ioctl, DRM_RENDER_ALLOW | DRM_AUTH),
> };
>
> static const struct vm_operations_struct v3d_vm_ops = {
> diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
> index 83c55ab6e1c0..e0624ea72942 100644
> --- a/drivers/gpu/drm/v3d/v3d_drv.h
> +++ b/drivers/gpu/drm/v3d/v3d_drv.h
> @@ -8,19 +8,18 @@
> #include <drm/drm_gem.h>
> #include <drm/gpu_scheduler.h>
> #include <drm/drm_simple_kms_helper.h>
> +#include "uapi/drm/v3d_drm.h"
>
> #define GMP_GRANULARITY (128 * 1024)
>
> -/* Enum for each of the V3D queues. We maintain various queue
> - * tracking as an array because at some point we'll want to support
> - * the TFU (texture formatting unit) as another queue.
> - */
> +/* Enum for each of the V3D queues. */
> enum v3d_queue {
> V3D_BIN,
> V3D_RENDER,
> + V3D_TFU,
> };
>
> -#define V3D_MAX_QUEUES (V3D_RENDER + 1)
> +#define V3D_MAX_QUEUES (V3D_TFU + 1)
>
> struct v3d_queue_state {
> struct drm_gpu_scheduler sched;
> @@ -74,6 +73,7 @@ struct v3d_dev {
>
> struct v3d_exec_info *bin_job;
> struct v3d_exec_info *render_job;
> + struct v3d_tfu_job *tfu_job;
>
> struct v3d_queue_state queue[V3D_MAX_QUEUES];
>
> @@ -224,6 +224,25 @@ struct v3d_exec_info {
> u32 qma, qms, qts;
> };
>
> +struct v3d_tfu_job {
> + struct drm_sched_job base;
> +
> + struct drm_v3d_submit_tfu args;
> +
> + /* An optional fence userspace can pass in for the job to depend on. */
> + struct dma_fence *in_fence;
> +
> + /* v3d fence to be signaled by IRQ handler when the job is complete. */
> + struct dma_fence *done_fence;
> +
> + struct v3d_dev *v3d;
> +
> + struct kref refcount;
> +
> + /* This is the array of BOs that were looked up at the start of exec. */
> + struct v3d_bo *bo[4];
> +};
> +
> /**
> * _wait_for - magic (register) wait macro
> *
> @@ -287,9 +306,12 @@ int v3d_gem_init(struct drm_device *dev);
> void v3d_gem_destroy(struct drm_device *dev);
> int v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
> struct drm_file *file_priv);
> +int v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
> + struct drm_file *file_priv);
> int v3d_wait_bo_ioctl(struct drm_device *dev, void *data,
> struct drm_file *file_priv);
> void v3d_exec_put(struct v3d_exec_info *exec);
> +void v3d_tfu_job_put(struct v3d_tfu_job *exec);
> void v3d_reset(struct v3d_dev *v3d);
> void v3d_invalidate_caches(struct v3d_dev *v3d);
> void v3d_flush_caches(struct v3d_dev *v3d);
> diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
> index 1e8947c7d954..41cbe2cdad50 100644
> --- a/drivers/gpu/drm/v3d/v3d_gem.c
> +++ b/drivers/gpu/drm/v3d/v3d_gem.c
> @@ -207,26 +207,27 @@ v3d_flush_caches(struct v3d_dev *v3d)
> }
>
> static void
> -v3d_attach_object_fences(struct v3d_exec_info *exec)
> +v3d_attach_object_fences(struct v3d_bo **bos, int bo_count,
> + struct dma_fence *fence)
> {
> - struct dma_fence *out_fence = exec->render_done_fence;
> int i;
>
> - for (i = 0; i < exec->bo_count; i++) {
> + for (i = 0; i < bo_count; i++) {
> /* XXX: Use shared fences for read-only objects. */
> - reservation_object_add_excl_fence(exec->bo[i]->resv, out_fence);
> + reservation_object_add_excl_fence(bos[i]->resv, fence);
> }
> }
>
> static void
> v3d_unlock_bo_reservations(struct drm_device *dev,
> - struct v3d_exec_info *exec,
> + struct v3d_bo **bos,
> + int bo_count,
> struct ww_acquire_ctx *acquire_ctx)
> {
> int i;
>
> - for (i = 0; i < exec->bo_count; i++)
> - ww_mutex_unlock(&exec->bo[i]->resv->lock);
> + for (i = 0; i < bo_count; i++)
> + ww_mutex_unlock(&bos[i]->resv->lock);
>
> ww_acquire_fini(acquire_ctx);
> }
> @@ -240,7 +241,8 @@ v3d_unlock_bo_reservations(struct drm_device *dev,
> */
> static int
> v3d_lock_bo_reservations(struct drm_device *dev,
> - struct v3d_exec_info *exec,
> + struct v3d_bo **bos,
> + int bo_count,
> struct ww_acquire_ctx *acquire_ctx)
> {
> int contended_lock = -1;
> @@ -250,7 +252,7 @@ v3d_lock_bo_reservations(struct drm_device *dev,
>
> retry:
> if (contended_lock != -1) {
> - struct v3d_bo *bo = exec->bo[contended_lock];
> + struct v3d_bo *bo = bos[contended_lock];
>
> ret = ww_mutex_lock_slow_interruptible(&bo->resv->lock,
> acquire_ctx);
> @@ -260,20 +262,20 @@ v3d_lock_bo_reservations(struct drm_device *dev,
> }
> }
>
> - for (i = 0; i < exec->bo_count; i++) {
> + for (i = 0; i < bo_count; i++) {
> if (i == contended_lock)
> continue;
>
> - ret = ww_mutex_lock_interruptible(&exec->bo[i]->resv->lock,
> + ret = ww_mutex_lock_interruptible(&bos[i]->resv->lock,
> acquire_ctx);
> if (ret) {
> int j;
>
> for (j = 0; j < i; j++)
> - ww_mutex_unlock(&exec->bo[j]->resv->lock);
> + ww_mutex_unlock(&bos[j]->resv->lock);
>
> if (contended_lock != -1 && contended_lock >= i) {
> - struct v3d_bo *bo = exec->bo[contended_lock];
> + struct v3d_bo *bo = bos[contended_lock];
>
> ww_mutex_unlock(&bo->resv->lock);
> }
> @@ -293,10 +295,11 @@ v3d_lock_bo_reservations(struct drm_device *dev,
> /* Reserve space for our shared (read-only) fence references,
> * before we commit the CL to the hardware.
> */
> - for (i = 0; i < exec->bo_count; i++) {
> - ret = reservation_object_reserve_shared(exec->bo[i]->resv, 1);
> + for (i = 0; i < bo_count; i++) {
> + ret = reservation_object_reserve_shared(bos[i]->resv, 1);
> if (ret) {
> - v3d_unlock_bo_reservations(dev, exec, acquire_ctx);
> + v3d_unlock_bo_reservations(dev, bos, bo_count,
> + acquire_ctx);
> return ret;
> }
> }
> @@ -419,6 +422,33 @@ void v3d_exec_put(struct v3d_exec_info *exec)
> kref_put(&exec->refcount, v3d_exec_cleanup);
> }
>
> +static void
> +v3d_tfu_job_cleanup(struct kref *ref)
> +{
> + struct v3d_tfu_job *job = container_of(ref, struct v3d_tfu_job,
> + refcount);
> + struct v3d_dev *v3d = job->v3d;
> + unsigned int i;
> +
> + dma_fence_put(job->in_fence);
> + dma_fence_put(job->done_fence);
> +
> + for (i = 0; i < ARRAY_SIZE(job->bo); i++) {
> + if (job->bo[i])
> + drm_gem_object_put_unlocked(&job->bo[i]->base);
> + }
> +
> + pm_runtime_mark_last_busy(v3d->dev);
> + pm_runtime_put_autosuspend(v3d->dev);
> +
> + kfree(job);
> +}
> +
> +void v3d_tfu_job_put(struct v3d_tfu_job *job)
> +{
> + kref_put(&job->refcount, v3d_tfu_job_cleanup);
> +}
> +
> int
> v3d_wait_bo_ioctl(struct drm_device *dev, void *data,
> struct drm_file *file_priv)
> @@ -536,7 +566,8 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
> if (ret)
> goto fail;
>
> - ret = v3d_lock_bo_reservations(dev, exec, &acquire_ctx);
> + ret = v3d_lock_bo_reservations(dev, exec->bo, exec->bo_count,
> + &acquire_ctx);
> if (ret)
> goto fail;
>
> @@ -570,9 +601,10 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
> &v3d_priv->sched_entity[V3D_RENDER]);
> mutex_unlock(&v3d->sched_lock);
>
> - v3d_attach_object_fences(exec);
> + v3d_attach_object_fences(exec->bo, exec->bo_count,
> + exec->render_done_fence);
>
> - v3d_unlock_bo_reservations(dev, exec, &acquire_ctx);
> + v3d_unlock_bo_reservations(dev, exec->bo, exec->bo_count, &acquire_ctx);
>
> /* Update the return sync object for the */
> sync_out = drm_syncobj_find(file_priv, args->out_sync);
> @@ -588,13 +620,119 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
>
> fail_unreserve:
> mutex_unlock(&v3d->sched_lock);
> - v3d_unlock_bo_reservations(dev, exec, &acquire_ctx);
> + v3d_unlock_bo_reservations(dev, exec->bo, exec->bo_count, &acquire_ctx);
> fail:
> v3d_exec_put(exec);
>
> return ret;
> }
>
> +/**
> + * v3d_submit_tfu_ioctl() - Submits a TFU (texture formatting) job to the V3D.
> + * @dev: DRM device
> + * @data: ioctl argument
> + * @file_priv: DRM file for this fd
> + *
> + * Userspace provides the register setup for the TFU, which we don't
> + * need to validate since the TFU is behind the MMU.
> + */
> +int
> +v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
> + struct drm_file *file_priv)
> +{
> + struct v3d_dev *v3d = to_v3d_dev(dev);
> + struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
> + struct drm_v3d_submit_tfu *args = data;
> + struct v3d_tfu_job *job;
> + struct ww_acquire_ctx acquire_ctx;
> + struct drm_syncobj *sync_out;
> + struct dma_fence *sched_done_fence;
> + int ret = 0;
> + int bo_count;
> +
> + job = kcalloc(1, sizeof(*job), GFP_KERNEL);
> + if (!job)
> + return -ENOMEM;
> +
> + ret = pm_runtime_get_sync(v3d->dev);
> + if (ret < 0) {
> + kfree(job);
> + return ret;
> + }
> +
> + kref_init(&job->refcount);
> +
> + ret = drm_syncobj_find_fence(file_priv, args->in_sync,
> + 0, 0, &job->in_fence);
> + if (ret == -EINVAL)
> + goto fail;
> +
> + job->args = *args;
> + job->v3d = v3d;
> +
> + spin_lock(&file_priv->table_lock);
> + for (bo_count = 0; bo_count < ARRAY_SIZE(job->bo); bo_count++) {
> + struct drm_gem_object *bo;
> +
> + if (!args->bo_handles[bo_count])
> + break;
> +
> + bo = idr_find(&file_priv->object_idr,
> + args->bo_handles[bo_count]);
> + if (!bo) {
> + DRM_DEBUG("Failed to look up GEM BO %d: %d\n",
> + bo_count, args->bo_handles[bo_count]);
> + ret = -ENOENT;
> + spin_unlock(&file_priv->table_lock);
> + goto fail;
> + }
> + drm_gem_object_get(bo);
> + job->bo[bo_count] = to_v3d_bo(bo);
> + }
> + spin_unlock(&file_priv->table_lock);
> +
> + ret = v3d_lock_bo_reservations(dev, job->bo, bo_count, &acquire_ctx);
> + if (ret)
> + goto fail;
> +
> + mutex_lock(&v3d->sched_lock);
> + ret = drm_sched_job_init(&job->base,
> + &v3d_priv->sched_entity[V3D_TFU],
> + v3d_priv);
> + if (ret)
> + goto fail_unreserve;
> +
> + sched_done_fence = dma_fence_get(&job->base.s_fence->finished);
> +
> + kref_get(&job->refcount); /* put by scheduler job completion */
> + drm_sched_entity_push_job(&job->base, &v3d_priv->sched_entity[V3D_TFU]);
> + mutex_unlock(&v3d->sched_lock);
> +
> + v3d_attach_object_fences(job->bo, bo_count, sched_done_fence);
> +
> + v3d_unlock_bo_reservations(dev, job->bo, bo_count, &acquire_ctx);
> +
> + /* Update the return sync object */
> + sync_out = drm_syncobj_find(file_priv, args->out_sync);
> + if (sync_out) {
> + drm_syncobj_replace_fence(sync_out, 0, sched_done_fence);
> + drm_syncobj_put(sync_out);
> + }
> + dma_fence_put(sched_done_fence);
> +
> + v3d_tfu_job_put(job);
> +
> + return 0;
> +
> +fail_unreserve:
> + mutex_unlock(&v3d->sched_lock);
> + v3d_unlock_bo_reservations(dev, job->bo, bo_count, &acquire_ctx);
> +fail:
> + v3d_tfu_job_put(job);
> +
> + return ret;
> +}
> +
> int
> v3d_gem_init(struct drm_device *dev)
> {
> diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
> index e07514eb11b5..dd7a7b0bd5a1 100644
> --- a/drivers/gpu/drm/v3d/v3d_irq.c
> +++ b/drivers/gpu/drm/v3d/v3d_irq.c
> @@ -4,8 +4,8 @@
> /**
> * DOC: Interrupt management for the V3D engine
> *
> - * When we take a binning or rendering flush done interrupt, we need
> - * to signal the fence for that job so that the scheduler can queue up
> + * When we take a bin, render, or TFU done interrupt, we need to
> + * signal the fence for that job so that the scheduler can queue up
> * the next one and unblock any waiters.
> *
> * When we take the binner out of memory interrupt, we need to
> @@ -23,7 +23,8 @@
>
> #define V3D_HUB_IRQS ((u32)(V3D_HUB_INT_MMU_WRV | \
> V3D_HUB_INT_MMU_PTI | \
> - V3D_HUB_INT_MMU_CAP))
> + V3D_HUB_INT_MMU_CAP | \
> + V3D_HUB_INT_TFUC))
>
> static void
> v3d_overflow_mem_work(struct work_struct *work)
> @@ -117,6 +118,11 @@ v3d_hub_irq(int irq, void *arg)
> /* Acknowledge the interrupts we're handling here. */
> V3D_WRITE(V3D_HUB_INT_CLR, intsts);
>
> + if (intsts & V3D_HUB_INT_TFUC) {
> + dma_fence_signal(v3d->tfu_job->done_fence);
> + status = IRQ_HANDLED;
> + }
> +
> if (intsts & (V3D_HUB_INT_MMU_WRV |
> V3D_HUB_INT_MMU_PTI |
> V3D_HUB_INT_MMU_CAP)) {
> diff --git a/drivers/gpu/drm/v3d/v3d_regs.h b/drivers/gpu/drm/v3d/v3d_regs.h
> index c3a5e4e44f73..6ccdee9d47bd 100644
> --- a/drivers/gpu/drm/v3d/v3d_regs.h
> +++ b/drivers/gpu/drm/v3d/v3d_regs.h
> @@ -86,6 +86,55 @@
> # define V3D_TOP_GR_BRIDGE_SW_INIT_1 0x0000c
> # define V3D_TOP_GR_BRIDGE_SW_INIT_1_V3D_CLK_108_SW_INIT BIT(0)
>
> +#define V3D_TFU_CS 0x00400
> +/* Stops current job, empties input fifo. */
> +# define V3D_TFU_CS_TFURST BIT(31)
> +# define V3D_TFU_CS_CVTCT_MASK V3D_MASK(23, 16)
> +# define V3D_TFU_CS_CVTCT_SHIFT 16
> +# define V3D_TFU_CS_NFREE_MASK V3D_MASK(13, 8)
> +# define V3D_TFU_CS_NFREE_SHIFT 8
> +# define V3D_TFU_CS_BUSY BIT(0)
> +
> +#define V3D_TFU_SU 0x00404
> +/* Interrupt when FINTTHR input slots are free (0 = disabled) */
> +# define V3D_TFU_SU_FINTTHR_MASK V3D_MASK(13, 8)
> +# define V3D_TFU_SU_FINTTHR_SHIFT 8
> +/* Skips resetting the CRC at the start of CRC generation. */
> +# define V3D_TFU_SU_CRCCHAIN BIT(4)
> +/* skips writes, computes CRC of the image. miplevels must be 0. */
> +# define V3D_TFU_SU_CRC BIT(3)
> +# define V3D_TFU_SU_THROTTLE_MASK V3D_MASK(1, 0)
> +# define V3D_TFU_SU_THROTTLE_SHIFT 0
> +
> +#define V3D_TFU_ICFG 0x00408
> +/* Interrupt when the conversion is complete. */
> +# define V3D_TFU_ICFG_IOC BIT(0)
> +
> +/* Input Image Address */
> +#define V3D_TFU_IIA 0x0040c
> +/* Input Chroma Address */
> +#define V3D_TFU_ICA 0x00410
> +/* Input Image Stride */
> +#define V3D_TFU_IIS 0x00414
> +/* Input Image U-Plane Address */
> +#define V3D_TFU_IUA 0x00418
> +/* Output Image Address */
> +#define V3D_TFU_IOA 0x0041c
> +/* Image Output Size */
> +#define V3D_TFU_IOS 0x00420
> +/* TFU YUV Coefficient 0 */
> +#define V3D_TFU_COEF0 0x00424
> +/* Use these regs instead of the defaults. */
> +# define V3D_TFU_COEF0_USECOEF BIT(31)
> +/* TFU YUV Coefficient 1 */
> +#define V3D_TFU_COEF1 0x00428
> +/* TFU YUV Coefficient 2 */
> +#define V3D_TFU_COEF2 0x0042c
> +/* TFU YUV Coefficient 3 */
> +#define V3D_TFU_COEF3 0x00430
> +
> +#define V3D_TFU_CRC 0x00434
> +
> /* Per-MMU registers. */
>
> #define V3D_MMUC_CONTROL 0x01000
> diff --git a/drivers/gpu/drm/v3d/v3d_sched.c b/drivers/gpu/drm/v3d/v3d_sched.c
> index e1f2aab0717b..0d13c722c8df 100644
> --- a/drivers/gpu/drm/v3d/v3d_sched.c
> +++ b/drivers/gpu/drm/v3d/v3d_sched.c
> @@ -30,6 +30,12 @@ to_v3d_job(struct drm_sched_job *sched_job)
> return container_of(sched_job, struct v3d_job, base);
> }
>
> +static struct v3d_tfu_job *
> +to_tfu_job(struct drm_sched_job *sched_job)
> +{
> + return container_of(sched_job, struct v3d_tfu_job, base);
> +}
> +
> static void
> v3d_job_free(struct drm_sched_job *sched_job)
> {
> @@ -38,6 +44,14 @@ v3d_job_free(struct drm_sched_job *sched_job)
> v3d_exec_put(job->exec);
> }
>
> +static void
> +v3d_tfu_job_free(struct drm_sched_job *sched_job)
> +{
> + struct v3d_tfu_job *job = to_tfu_job(sched_job);
> +
> + v3d_tfu_job_put(job);
> +}
> +
> /**
> * Returns the fences that the bin or render job depends on, one by one.
> * v3d_job_run() won't be called until all of them have been signaled.
> @@ -76,6 +90,27 @@ v3d_job_dependency(struct drm_sched_job *sched_job,
> return fence;
> }
>
> +/**
> + * Returns the fences that the TFU job depends on, one by one.
> + * v3d_tfu_job_run() won't be called until all of them have been
> + * signaled.
> + */
> +static struct dma_fence *
> +v3d_tfu_job_dependency(struct drm_sched_job *sched_job,
> + struct drm_sched_entity *s_entity)
> +{
> + struct v3d_tfu_job *job = to_tfu_job(sched_job);
> + struct dma_fence *fence;
> +
> + fence = job->in_fence;
> + if (fence) {
> + job->in_fence = NULL;
> + return fence;
> + }
> +
> + return NULL;
> +}
> +
> static struct dma_fence *v3d_job_run(struct drm_sched_job *sched_job)
> {
> struct v3d_job *job = to_v3d_job(sched_job);
> @@ -147,6 +182,71 @@ static struct dma_fence *v3d_job_run(struct drm_sched_job *sched_job)
> return fence;
> }
>
> +static struct dma_fence *
> +v3d_tfu_job_run(struct drm_sched_job *sched_job)
> +{
> + struct v3d_tfu_job *job = to_tfu_job(sched_job);
> + struct v3d_dev *v3d = job->v3d;
> + struct drm_device *dev = &v3d->drm;
> + struct dma_fence *fence;
> +
> + fence = v3d_fence_create(v3d, V3D_TFU);
> + if (IS_ERR(fence))
> + return NULL;
> +
> + v3d->tfu_job = job;
> + if (job->done_fence)
> + dma_fence_put(job->done_fence);
> + job->done_fence = dma_fence_get(fence);
> +
> + trace_v3d_submit_tfu(dev, to_v3d_fence(fence)->seqno);
> +
> + V3D_WRITE(V3D_TFU_IIA, job->args.iia);
> + V3D_WRITE(V3D_TFU_IIS, job->args.iis);
> + V3D_WRITE(V3D_TFU_ICA, job->args.ica);
> + V3D_WRITE(V3D_TFU_IUA, job->args.iua);
> + V3D_WRITE(V3D_TFU_IOA, job->args.ioa);
> + V3D_WRITE(V3D_TFU_IOS, job->args.ios);
> + V3D_WRITE(V3D_TFU_COEF0, job->args.coef[0]);
> + if (job->args.coef[0] & V3D_TFU_COEF0_USECOEF) {
> + V3D_WRITE(V3D_TFU_COEF1, job->args.coef[1]);
> + V3D_WRITE(V3D_TFU_COEF2, job->args.coef[2]);
> + V3D_WRITE(V3D_TFU_COEF3, job->args.coef[3]);
> + }
> + /* ICFG kicks off the job. */
> + V3D_WRITE(V3D_TFU_ICFG, job->args.icfg | V3D_TFU_ICFG_IOC);
> +
> + return fence;
> +}
> +
> +static void
> +v3d_gpu_reset_for_timeout(struct v3d_dev *v3d, struct drm_sched_job *sched_job)
> +{
> + enum v3d_queue q;
> +
> + mutex_lock(&v3d->reset_lock);
> +
> + /* block scheduler */
> + for (q = 0; q < V3D_MAX_QUEUES; q++) {
> + struct drm_gpu_scheduler *sched = &v3d->queue[q].sched;
> +
> + kthread_park(sched->thread);
> + drm_sched_hw_job_reset(sched, (sched_job->sched == sched ?
> + sched_job : NULL));
> + }
> +
> + /* get the GPU back into the init state */
> + v3d_reset(v3d);
> +
> + /* Unblock schedulers and restart their jobs. */
> + for (q = 0; q < V3D_MAX_QUEUES; q++) {
> + drm_sched_job_recovery(&v3d->queue[q].sched);
> + kthread_unpark(v3d->queue[q].sched.thread);
> + }
> +
> + mutex_unlock(&v3d->reset_lock);
> +}
> +
> static void
> v3d_job_timedout(struct drm_sched_job *sched_job)
> {
> @@ -154,7 +254,6 @@ v3d_job_timedout(struct drm_sched_job *sched_job)
> struct v3d_exec_info *exec = job->exec;
> struct v3d_dev *v3d = exec->v3d;
> enum v3d_queue job_q = job == &exec->bin ? V3D_BIN : V3D_RENDER;
> - enum v3d_queue q;
> u32 ctca = V3D_CORE_READ(0, V3D_CLE_CTNCA(job_q));
> u32 ctra = V3D_CORE_READ(0, V3D_CLE_CTNRA(job_q));
>
> @@ -173,27 +272,15 @@ v3d_job_timedout(struct drm_sched_job *sched_job)
> return;
> }
>
> - mutex_lock(&v3d->reset_lock);
> -
> - /* block scheduler */
> - for (q = 0; q < V3D_MAX_QUEUES; q++) {
> - struct drm_gpu_scheduler *sched = &v3d->queue[q].sched;
> -
> - kthread_park(sched->thread);
> - drm_sched_hw_job_reset(sched, (sched_job->sched == sched ?
> - sched_job : NULL));
> - }
> -
> - /* get the GPU back into the init state */
> - v3d_reset(v3d);
> + v3d_gpu_reset_for_timeout(v3d, sched_job);
> +}
>
> - /* Unblock schedulers and restart their jobs. */
> - for (q = 0; q < V3D_MAX_QUEUES; q++) {
> - drm_sched_job_recovery(&v3d->queue[q].sched);
> - kthread_unpark(v3d->queue[q].sched.thread);
> - }
> +static void
> +v3d_tfu_job_timedout(struct drm_sched_job *sched_job)
> +{
> + struct v3d_tfu_job *job = to_tfu_job(sched_job);
>
> - mutex_unlock(&v3d->reset_lock);
> + v3d_gpu_reset_for_timeout(job->v3d, sched_job);
> }
>
> static const struct drm_sched_backend_ops v3d_sched_ops = {
> @@ -203,6 +290,13 @@ static const struct drm_sched_backend_ops v3d_sched_ops = {
> .free_job = v3d_job_free
> };
>
> +static const struct drm_sched_backend_ops v3d_tfu_sched_ops = {
> + .dependency = v3d_tfu_job_dependency,
> + .run_job = v3d_tfu_job_run,
> + .timedout_job = v3d_tfu_job_timedout,
> + .free_job = v3d_tfu_job_free
> +};
> +
> int
> v3d_sched_init(struct v3d_dev *v3d)
> {
> @@ -233,6 +327,19 @@ v3d_sched_init(struct v3d_dev *v3d)
> return ret;
> }
>
> + ret = drm_sched_init(&v3d->queue[V3D_TFU].sched,
> + &v3d_tfu_sched_ops,
> + hw_jobs_limit, job_hang_limit,
> + msecs_to_jiffies(hang_limit_ms),
> + "v3d_tfu");
> + if (ret) {
> + dev_err(v3d->dev, "Failed to create TFU scheduler: %d.",
> + ret);
> + drm_sched_fini(&v3d->queue[V3D_RENDER].sched);
> + drm_sched_fini(&v3d->queue[V3D_BIN].sched);
> + return ret;
> + }
> +
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/v3d/v3d_trace.h b/drivers/gpu/drm/v3d/v3d_trace.h
> index 85dd351e1e09..f54ed9cd3444 100644
> --- a/drivers/gpu/drm/v3d/v3d_trace.h
> +++ b/drivers/gpu/drm/v3d/v3d_trace.h
> @@ -42,6 +42,26 @@ TRACE_EVENT(v3d_submit_cl,
> __entry->ctnqea)
> );
>
> +TRACE_EVENT(v3d_submit_tfu,
> + TP_PROTO(struct drm_device *dev,
> + uint64_t seqno),
> + TP_ARGS(dev, seqno),
> +
> + TP_STRUCT__entry(
> + __field(u32, dev)
> + __field(u64, seqno)
> + ),
> +
> + TP_fast_assign(
> + __entry->dev = dev->primary->index;
> + __entry->seqno = seqno;
> + ),
> +
> + TP_printk("dev=%u, seqno=%llu",
> + __entry->dev,
> + __entry->seqno)
> +);
> +
> TRACE_EVENT(v3d_reset_begin,
> TP_PROTO(struct drm_device *dev),
> TP_ARGS(dev),
> diff --git a/include/uapi/drm/v3d_drm.h b/include/uapi/drm/v3d_drm.h
> index b1e5de076b0f..35c7d813c66e 100644
> --- a/include/uapi/drm/v3d_drm.h
> +++ b/include/uapi/drm/v3d_drm.h
> @@ -36,6 +36,7 @@ extern "C" {
> #define DRM_V3D_MMAP_BO 0x03
> #define DRM_V3D_GET_PARAM 0x04
> #define DRM_V3D_GET_BO_OFFSET 0x05
> +#define DRM_V3D_SUBMIT_TFU 0x06
>
> #define DRM_IOCTL_V3D_SUBMIT_CL DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_CL, struct drm_v3d_submit_cl)
> #define DRM_IOCTL_V3D_WAIT_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_WAIT_BO, struct drm_v3d_wait_bo)
> @@ -43,6 +44,7 @@ extern "C" {
> #define DRM_IOCTL_V3D_MMAP_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_MMAP_BO, struct drm_v3d_mmap_bo)
> #define DRM_IOCTL_V3D_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_GET_PARAM, struct drm_v3d_get_param)
> #define DRM_IOCTL_V3D_GET_BO_OFFSET DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_GET_BO_OFFSET, struct drm_v3d_get_bo_offset)
> +#define DRM_IOCTL_V3D_SUBMIT_TFU DRM_IOW(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_TFU, struct drm_v3d_submit_tfu)
>
> /**
> * struct drm_v3d_submit_cl - ioctl argument for submitting commands to the 3D
> @@ -179,6 +181,7 @@ enum drm_v3d_param {
> DRM_V3D_PARAM_V3D_CORE0_IDENT0,
> DRM_V3D_PARAM_V3D_CORE0_IDENT1,
> DRM_V3D_PARAM_V3D_CORE0_IDENT2,
> + DRM_V3D_PARAM_SUPPORTS_TFU,
> };
>
> struct drm_v3d_get_param {
> @@ -197,6 +200,28 @@ struct drm_v3d_get_bo_offset {
> __u32 offset;
> };
>
> +struct drm_v3d_submit_tfu {
> + __u32 icfg;
> + __u32 iia;
> + __u32 iis;
> + __u32 ica;
> + __u32 iua;
> + __u32 ioa;
> + __u32 ios;
> + __u32 coef[4];
> + /* First handle is the output BO, following are other inputs.
> + * 0 for unused.
> + */
> + __u32 bo_handles[4];
> + /* sync object to block on before running the TFU job. Each TFU
> + * job will execute in the order submitted to its FD. Synchronization
> + * against rendering jobs requires using sync objects.
> + */
> + __u32 in_sync;
> + /* Sync object to signal when the TFU job is done. */
> + __u32 out_sync;
> +};
> +
> #if defined(__cplusplus)
> }
> #endif
> --
> 2.20.0.rc1
>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH 3/3] drm/v3d: Fix prime imports of buffers from other drivers.
2018-11-28 23:09 ` [PATCH 3/3] drm/v3d: Fix prime imports of buffers from other drivers Eric Anholt
2018-11-29 9:38 ` Daniel Vetter
@ 2018-11-29 17:37 ` Dave Emett
1 sibling, 0 replies; 7+ messages in thread
From: Dave Emett @ 2018-11-29 17:37 UTC (permalink / raw)
To: Eric Anholt; +Cc: dri-devel, linux-kernel
On Wed, 28 Nov 2018 at 23:09, Eric Anholt <eric@anholt.net> wrote:
>
> v3d_bo_get_pages() checks this to decide to map the imported buffer
> instead of the backing shmem file. The caller was about to set this
> value anyway, and there's no error path in between. Ideally we
> wouldn't even allocate the shmem file for our imports, but that's a
> more invasive fix.
>
> Signed-off-by: Eric Anholt <eric@anholt.net>
> Fixes: 57692c94dcbe ("drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+")
> Cc: Dave Emett <david.emett@broadcom.com>
Reviewed-by: Dave Emett <david.emett@broadcom.com>
> ---
>
> I've been sitting on this one because I don't like it and was hoping
> the shmem library would pan out. This is a useful patch for now,
> though.
>
> drivers/gpu/drm/v3d/v3d_bo.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/v3d/v3d_bo.c b/drivers/gpu/drm/v3d/v3d_bo.c
> index 54d96518a131..a08766d39eab 100644
> --- a/drivers/gpu/drm/v3d/v3d_bo.c
> +++ b/drivers/gpu/drm/v3d/v3d_bo.c
> @@ -293,6 +293,7 @@ v3d_prime_import_sg_table(struct drm_device *dev,
> bo->resv = attach->dmabuf->resv;
>
> bo->sgt = sgt;
> + obj->import_attach = attach;
> v3d_bo_get_pages(bo);
>
> v3d_mmu_insert_ptes(bo);
> --
> 2.20.0.rc1
>
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2018-11-29 17:38 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-11-28 23:09 [PATCH 1/3] drm/v3d: Add support for submitting jobs to the TFU Eric Anholt
2018-11-28 23:09 ` [PATCH 2/3] drm/v3d: Drop the "dev" argument to lock/unlock of BO reservations Eric Anholt
2018-11-29 9:36 ` Daniel Vetter
2018-11-28 23:09 ` [PATCH 3/3] drm/v3d: Fix prime imports of buffers from other drivers Eric Anholt
2018-11-29 9:38 ` Daniel Vetter
2018-11-29 17:37 ` Dave Emett
2018-11-29 15:20 ` [PATCH 1/3] drm/v3d: Add support for submitting jobs to the TFU Dave Emett
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