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Message-ID: <20241108043448.449314-8-lizhi.hou@amd.com>
Date: Thu, 7 Nov 2024 20:34:45 -0800
From: Lizhi Hou <lizhi.hou@....com>
To: <ogabbay@...nel.org>, <quic_jhugo@...cinc.com>,
<dri-devel@...ts.freedesktop.org>
CC: Lizhi Hou <lizhi.hou@....com>, <linux-kernel@...r.kernel.org>,
<min.ma@....com>, <max.zhen@....com>, <sonal.santan@....com>,
<king.tam@....com>
Subject: [PATCH V7 07/10] accel/amdxdna: Add command execution
Add interfaces for user application to submit command and wait for its
completion.
Co-developed-by: Min Ma <min.ma@....com>
Signed-off-by: Min Ma <min.ma@....com>
Signed-off-by: Lizhi Hou <lizhi.hou@....com>
---
drivers/accel/amdxdna/aie2_ctx.c | 634 +++++++++++++++++-
drivers/accel/amdxdna/aie2_message.c | 343 ++++++++++
drivers/accel/amdxdna/aie2_pci.c | 5 +
drivers/accel/amdxdna/aie2_pci.h | 40 ++
drivers/accel/amdxdna/aie2_psp.c | 2 +
drivers/accel/amdxdna/aie2_smu.c | 2 +
drivers/accel/amdxdna/amdxdna_ctx.c | 320 ++++++++-
drivers/accel/amdxdna/amdxdna_ctx.h | 111 +++
drivers/accel/amdxdna/amdxdna_gem.c | 1 +
.../accel/amdxdna/amdxdna_mailbox_helper.c | 5 +
drivers/accel/amdxdna/amdxdna_pci_drv.c | 12 +
drivers/accel/amdxdna/amdxdna_pci_drv.h | 5 +
drivers/accel/amdxdna/amdxdna_sysfs.c | 5 +
drivers/accel/amdxdna/npu1_regs.c | 1 +
drivers/accel/amdxdna/npu2_regs.c | 1 +
drivers/accel/amdxdna/npu4_regs.c | 1 +
drivers/accel/amdxdna/npu5_regs.c | 1 +
include/trace/events/amdxdna.h | 41 ++
include/uapi/drm/amdxdna_accel.h | 38 ++
19 files changed, 1559 insertions(+), 9 deletions(-)
diff --git a/drivers/accel/amdxdna/aie2_ctx.c b/drivers/accel/amdxdna/aie2_ctx.c
index ae8a91dad042..4641e52b59e2 100644
--- a/drivers/accel/amdxdna/aie2_ctx.c
+++ b/drivers/accel/amdxdna/aie2_ctx.c
@@ -8,8 +8,12 @@
#include <drm/drm_gem.h>
#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_print.h>
+#include <drm/drm_syncobj.h>
+#include <linux/hmm.h>
#include <linux/types.h>
+#include <trace/events/amdxdna.h>
+#include "aie2_msg_priv.h"
#include "aie2_pci.h"
#include "aie2_solver.h"
#include "amdxdna_ctx.h"
@@ -17,6 +21,342 @@
#include "amdxdna_mailbox.h"
#include "amdxdna_pci_drv.h"
+bool force_cmdlist;
+module_param(force_cmdlist, bool, 0600);
+MODULE_PARM_DESC(force_cmdlist, "Force use command list (Default false)");
+
+#define HWCTX_MAX_TIMEOUT 60000 /* milliseconds */
+
+static void aie2_job_release(struct kref *ref)
+{
+ struct amdxdna_sched_job *job;
+
+ job = container_of(ref, struct amdxdna_sched_job, refcnt);
+ amdxdna_sched_job_cleanup(job);
+ kfree(job);
+}
+
+static void aie2_job_put(struct amdxdna_sched_job *job)
+{
+ kref_put(&job->refcnt, aie2_job_release);
+}
+
+/* The bad_job is used in aie2_sched_job_timedout, otherwise, set it to NULL */
+static void aie2_hwctx_stop(struct amdxdna_dev *xdna, struct amdxdna_hwctx *hwctx,
+ struct drm_sched_job *bad_job)
+{
+ drm_sched_stop(&hwctx->priv->sched, bad_job);
+ aie2_destroy_context(xdna->dev_handle, hwctx);
+}
+
+static int aie2_hwctx_restart(struct amdxdna_dev *xdna, struct amdxdna_hwctx *hwctx)
+{
+ struct amdxdna_gem_obj *heap = hwctx->priv->heap;
+ int ret;
+
+ ret = aie2_create_context(xdna->dev_handle, hwctx);
+ if (ret) {
+ XDNA_ERR(xdna, "Create hwctx failed, ret %d", ret);
+ goto out;
+ }
+
+ ret = aie2_map_host_buf(xdna->dev_handle, hwctx->fw_ctx_id,
+ heap->mem.userptr, heap->mem.size);
+ if (ret) {
+ XDNA_ERR(xdna, "Map host buf failed, ret %d", ret);
+ goto out;
+ }
+
+ if (hwctx->status != HWCTX_STAT_READY) {
+ XDNA_DBG(xdna, "hwctx is not ready, status %d", hwctx->status);
+ goto out;
+ }
+
+ ret = aie2_config_cu(hwctx);
+ if (ret) {
+ XDNA_ERR(xdna, "Config cu failed, ret %d", ret);
+ goto out;
+ }
+
+out:
+ drm_sched_start(&hwctx->priv->sched);
+ XDNA_DBG(xdna, "%s restarted, ret %d", hwctx->name, ret);
+ return ret;
+}
+
+void aie2_stop_ctx_by_col_map(struct amdxdna_client *client, u32 col_map)
+{
+ struct amdxdna_dev *xdna = client->xdna;
+ struct amdxdna_hwctx *hwctx;
+ int next = 0;
+
+ drm_WARN_ON(&xdna->ddev, !mutex_is_locked(&xdna->dev_lock));
+ mutex_lock(&client->hwctx_lock);
+ idr_for_each_entry_continue(&client->hwctx_idr, hwctx, next) {
+ /* check if the HW context uses the error column */
+ if (!(col_map & amdxdna_hwctx_col_map(hwctx)))
+ continue;
+
+ aie2_hwctx_stop(xdna, hwctx, NULL);
+ hwctx->old_status = hwctx->status;
+ hwctx->status = HWCTX_STAT_STOP;
+ XDNA_DBG(xdna, "Stop %s", hwctx->name);
+ }
+ mutex_unlock(&client->hwctx_lock);
+}
+
+void aie2_restart_ctx(struct amdxdna_client *client)
+{
+ struct amdxdna_dev *xdna = client->xdna;
+ struct amdxdna_hwctx *hwctx;
+ int next = 0;
+
+ drm_WARN_ON(&xdna->ddev, !mutex_is_locked(&xdna->dev_lock));
+ mutex_lock(&client->hwctx_lock);
+ idr_for_each_entry_continue(&client->hwctx_idr, hwctx, next) {
+ if (hwctx->status != HWCTX_STAT_STOP)
+ continue;
+
+ hwctx->status = hwctx->old_status;
+ XDNA_DBG(xdna, "Resetting %s", hwctx->name);
+ aie2_hwctx_restart(xdna, hwctx);
+ }
+ mutex_unlock(&client->hwctx_lock);
+}
+
+static struct dma_fence *aie2_cmd_get_out_fence(struct amdxdna_hwctx *hwctx, u64 seq)
+{
+ struct dma_fence *fence, *out_fence = NULL;
+ int ret;
+
+ fence = drm_syncobj_fence_get(hwctx->priv->syncobj);
+ if (!fence)
+ return NULL;
+
+ ret = dma_fence_chain_find_seqno(&fence, seq);
+ if (ret)
+ goto out;
+
+ out_fence = dma_fence_get(dma_fence_chain_contained(fence));
+
+out:
+ dma_fence_put(fence);
+ return out_fence;
+}
+
+static void aie2_hwctx_wait_for_idle(struct amdxdna_hwctx *hwctx)
+{
+ struct dma_fence *fence;
+
+ fence = aie2_cmd_get_out_fence(hwctx, hwctx->priv->seq - 1);
+ if (!fence)
+ return;
+
+ dma_fence_wait(fence, false);
+ dma_fence_put(fence);
+}
+
+static void
+aie2_sched_notify(struct amdxdna_sched_job *job)
+{
+ struct dma_fence *fence = job->fence;
+
+ trace_xdna_job(&job->base, job->hwctx->name, "signaled fence", job->seq);
+ job->hwctx->priv->completed++;
+ dma_fence_signal(fence);
+
+ up(&job->hwctx->priv->job_sem);
+ job->job_done = true;
+ dma_fence_put(fence);
+ mmput(job->mm);
+ aie2_job_put(job);
+}
+
+static int
+aie2_sched_resp_handler(void *handle, const u32 *data, size_t size)
+{
+ struct amdxdna_sched_job *job = handle;
+ struct amdxdna_gem_obj *cmd_abo;
+ u32 ret = 0;
+ u32 status;
+
+ cmd_abo = job->cmd_bo;
+
+ if (unlikely(!data))
+ goto out;
+
+ if (unlikely(size != sizeof(u32))) {
+ amdxdna_cmd_set_state(cmd_abo, ERT_CMD_STATE_ABORT);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ status = *data;
+ XDNA_DBG(job->hwctx->client->xdna, "Resp status 0x%x", status);
+ if (status == AIE2_STATUS_SUCCESS)
+ amdxdna_cmd_set_state(cmd_abo, ERT_CMD_STATE_COMPLETED);
+ else
+ amdxdna_cmd_set_state(cmd_abo, ERT_CMD_STATE_ERROR);
+
+out:
+ aie2_sched_notify(job);
+ return ret;
+}
+
+static int
+aie2_sched_nocmd_resp_handler(void *handle, const u32 *data, size_t size)
+{
+ struct amdxdna_sched_job *job = handle;
+ u32 ret = 0;
+ u32 status;
+
+ if (unlikely(!data))
+ goto out;
+
+ if (unlikely(size != sizeof(u32))) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ status = *data;
+ XDNA_DBG(job->hwctx->client->xdna, "Resp status 0x%x", status);
+
+out:
+ aie2_sched_notify(job);
+ return ret;
+}
+
+static int
+aie2_sched_cmdlist_resp_handler(void *handle, const u32 *data, size_t size)
+{
+ struct amdxdna_sched_job *job = handle;
+ struct amdxdna_gem_obj *cmd_abo;
+ struct cmd_chain_resp *resp;
+ struct amdxdna_dev *xdna;
+ u32 fail_cmd_status;
+ u32 fail_cmd_idx;
+ u32 ret = 0;
+
+ cmd_abo = job->cmd_bo;
+ if (unlikely(!data) || unlikely(size != sizeof(u32) * 3)) {
+ amdxdna_cmd_set_state(cmd_abo, ERT_CMD_STATE_ABORT);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ resp = (struct cmd_chain_resp *)data;
+ xdna = job->hwctx->client->xdna;
+ XDNA_DBG(xdna, "Status 0x%x", resp->status);
+ if (resp->status == AIE2_STATUS_SUCCESS) {
+ amdxdna_cmd_set_state(cmd_abo, ERT_CMD_STATE_COMPLETED);
+ goto out;
+ }
+
+ /* Slow path to handle error, read from ringbuf on BAR */
+ fail_cmd_idx = resp->fail_cmd_idx;
+ fail_cmd_status = resp->fail_cmd_status;
+ XDNA_DBG(xdna, "Failed cmd idx %d, status 0x%x",
+ fail_cmd_idx, fail_cmd_status);
+
+ if (fail_cmd_status == AIE2_STATUS_SUCCESS) {
+ amdxdna_cmd_set_state(cmd_abo, ERT_CMD_STATE_ABORT);
+ ret = -EINVAL;
+ goto out;
+ }
+ amdxdna_cmd_set_state(cmd_abo, fail_cmd_status);
+
+ if (amdxdna_cmd_get_op(cmd_abo) == ERT_CMD_CHAIN) {
+ struct amdxdna_cmd_chain *cc = amdxdna_cmd_get_payload(cmd_abo, NULL);
+
+ cc->error_index = fail_cmd_idx;
+ if (cc->error_index >= cc->command_count)
+ cc->error_index = 0;
+ }
+out:
+ aie2_sched_notify(job);
+ return ret;
+}
+
+static struct dma_fence *
+aie2_sched_job_run(struct drm_sched_job *sched_job)
+{
+ struct amdxdna_sched_job *job = drm_job_to_xdna_job(sched_job);
+ struct amdxdna_gem_obj *cmd_abo = job->cmd_bo;
+ struct amdxdna_hwctx *hwctx = job->hwctx;
+ struct dma_fence *fence;
+ int ret;
+
+ if (!mmget_not_zero(job->mm))
+ return ERR_PTR(-ESRCH);
+
+ kref_get(&job->refcnt);
+ fence = dma_fence_get(job->fence);
+
+ if (unlikely(!cmd_abo)) {
+ ret = aie2_sync_bo(hwctx, job, aie2_sched_nocmd_resp_handler);
+ goto out;
+ }
+
+ amdxdna_cmd_set_state(cmd_abo, ERT_CMD_STATE_NEW);
+
+ if (amdxdna_cmd_get_op(cmd_abo) == ERT_CMD_CHAIN)
+ ret = aie2_cmdlist_multi_execbuf(hwctx, job, aie2_sched_cmdlist_resp_handler);
+ else if (force_cmdlist)
+ ret = aie2_cmdlist_single_execbuf(hwctx, job, aie2_sched_cmdlist_resp_handler);
+ else
+ ret = aie2_execbuf(hwctx, job, aie2_sched_resp_handler);
+
+out:
+ if (ret) {
+ dma_fence_put(job->fence);
+ aie2_job_put(job);
+ mmput(job->mm);
+ fence = ERR_PTR(ret);
+ }
+ trace_xdna_job(sched_job, hwctx->name, "sent to device", job->seq);
+
+ return fence;
+}
+
+static void aie2_sched_job_free(struct drm_sched_job *sched_job)
+{
+ struct amdxdna_sched_job *job = drm_job_to_xdna_job(sched_job);
+ struct amdxdna_hwctx *hwctx = job->hwctx;
+
+ trace_xdna_job(sched_job, hwctx->name, "job free", job->seq);
+ if (!job->job_done)
+ up(&hwctx->priv->job_sem);
+
+ if (job->out_fence)
+ dma_fence_put(job->out_fence);
+ drm_sched_job_cleanup(sched_job);
+ aie2_job_put(job);
+}
+
+static enum drm_gpu_sched_stat
+aie2_sched_job_timedout(struct drm_sched_job *sched_job)
+{
+ struct amdxdna_sched_job *job = drm_job_to_xdna_job(sched_job);
+ struct amdxdna_hwctx *hwctx = job->hwctx;
+ struct amdxdna_dev *xdna;
+
+ xdna = hwctx->client->xdna;
+ trace_xdna_job(sched_job, hwctx->name, "job timedout", job->seq);
+ mutex_lock(&xdna->dev_lock);
+ aie2_hwctx_stop(xdna, hwctx, sched_job);
+
+ aie2_hwctx_restart(xdna, hwctx);
+ mutex_unlock(&xdna->dev_lock);
+
+ return DRM_GPU_SCHED_STAT_NOMINAL;
+}
+
+const struct drm_sched_backend_ops sched_ops = {
+ .run_job = aie2_sched_job_run,
+ .free_job = aie2_sched_job_free,
+ .timedout_job = aie2_sched_job_timedout,
+};
+
static int aie2_hwctx_col_list(struct amdxdna_hwctx *hwctx)
{
struct amdxdna_dev *xdna = hwctx->client->xdna;
@@ -126,13 +466,66 @@ static void aie2_release_resource(struct amdxdna_hwctx *hwctx)
XDNA_ERR(xdna, "Release AIE resource failed, ret %d", ret);
}
+static int aie2_ctx_syncobj_create(struct amdxdna_hwctx *hwctx)
+{
+ struct amdxdna_dev *xdna = hwctx->client->xdna;
+ struct drm_file *filp = hwctx->client->filp;
+ struct drm_syncobj *syncobj;
+ u32 hdl;
+ int ret;
+
+ hwctx->syncobj_hdl = AMDXDNA_INVALID_FENCE_HANDLE;
+
+ ret = drm_syncobj_create(&syncobj, 0, NULL);
+ if (ret) {
+ XDNA_ERR(xdna, "Create ctx syncobj failed, ret %d", ret);
+ return ret;
+ }
+ ret = drm_syncobj_get_handle(filp, syncobj, &hdl);
+ if (ret) {
+ drm_syncobj_put(syncobj);
+ XDNA_ERR(xdna, "Create ctx syncobj handle failed, ret %d", ret);
+ return ret;
+ }
+ hwctx->priv->syncobj = syncobj;
+ hwctx->syncobj_hdl = hdl;
+
+ return 0;
+}
+
+static void aie2_ctx_syncobj_destroy(struct amdxdna_hwctx *hwctx)
+{
+ /*
+ * The syncobj_hdl is owned by user space and will be cleaned up
+ * separately.
+ */
+ drm_syncobj_put(hwctx->priv->syncobj);
+}
+
+static void aie2_ctx_syncobj_add_fence(struct amdxdna_hwctx *hwctx,
+ struct dma_fence *ofence, u64 seq)
+{
+ struct drm_syncobj *syncobj = hwctx->priv->syncobj;
+ struct dma_fence_chain *chain;
+
+ if (!syncobj)
+ return;
+
+ chain = dma_fence_chain_alloc();
+ if (!chain)
+ return;
+
+ drm_syncobj_add_point(syncobj, chain, ofence, seq);
+}
+
int aie2_hwctx_init(struct amdxdna_hwctx *hwctx)
{
struct amdxdna_client *client = hwctx->client;
struct amdxdna_dev *xdna = client->xdna;
+ struct drm_gpu_scheduler *sched;
struct amdxdna_hwctx_priv *priv;
struct amdxdna_gem_obj *heap;
- int ret;
+ int i, ret;
priv = kzalloc(sizeof(*hwctx->priv), GFP_KERNEL);
if (!priv)
@@ -150,6 +543,7 @@ int aie2_hwctx_init(struct amdxdna_hwctx *hwctx)
drm_gem_object_get(to_gobj(heap));
mutex_unlock(&client->mm_lock);
priv->heap = heap;
+ sema_init(&priv->job_sem, HWCTX_MAX_CMDS);
ret = amdxdna_gem_pin(heap);
if (ret) {
@@ -157,10 +551,47 @@ int aie2_hwctx_init(struct amdxdna_hwctx *hwctx)
goto put_heap;
}
+ for (i = 0; i < ARRAY_SIZE(priv->cmd_buf); i++) {
+ struct amdxdna_gem_obj *abo;
+ struct amdxdna_drm_create_bo args = {
+ .flags = 0,
+ .type = AMDXDNA_BO_DEV,
+ .vaddr = 0,
+ .size = MAX_CHAIN_CMDBUF_SIZE,
+ };
+
+ abo = amdxdna_drm_alloc_dev_bo(&xdna->ddev, &args, client->filp, true);
+ if (IS_ERR(abo)) {
+ ret = PTR_ERR(abo);
+ goto free_cmd_bufs;
+ }
+
+ XDNA_DBG(xdna, "Command buf %d addr 0x%llx size 0x%lx",
+ i, abo->mem.dev_addr, abo->mem.size);
+ priv->cmd_buf[i] = abo;
+ }
+
+ sched = &priv->sched;
+ mutex_init(&priv->io_lock);
+ ret = drm_sched_init(sched, &sched_ops, NULL, DRM_SCHED_PRIORITY_COUNT,
+ HWCTX_MAX_CMDS, 0, msecs_to_jiffies(HWCTX_MAX_TIMEOUT),
+ NULL, NULL, hwctx->name, xdna->ddev.dev);
+ if (ret) {
+ XDNA_ERR(xdna, "Failed to init DRM scheduler. ret %d", ret);
+ goto free_cmd_bufs;
+ }
+
+ ret = drm_sched_entity_init(&priv->entity, DRM_SCHED_PRIORITY_NORMAL,
+ &sched, 1, NULL);
+ if (ret) {
+ XDNA_ERR(xdna, "Failed to initial sched entiry. ret %d", ret);
+ goto free_sched;
+ }
+
ret = aie2_hwctx_col_list(hwctx);
if (ret) {
XDNA_ERR(xdna, "Create col list failed, ret %d", ret);
- goto unpin;
+ goto free_entity;
}
ret = aie2_alloc_resource(hwctx);
@@ -175,6 +606,13 @@ int aie2_hwctx_init(struct amdxdna_hwctx *hwctx)
XDNA_ERR(xdna, "Map host buffer failed, ret %d", ret);
goto release_resource;
}
+
+ ret = aie2_ctx_syncobj_create(hwctx);
+ if (ret) {
+ XDNA_ERR(xdna, "Create syncobj failed, ret %d", ret);
+ goto release_resource;
+ }
+
hwctx->status = HWCTX_STAT_INIT;
XDNA_DBG(xdna, "hwctx %s init completed", hwctx->name);
@@ -185,7 +623,16 @@ int aie2_hwctx_init(struct amdxdna_hwctx *hwctx)
aie2_release_resource(hwctx);
free_col_list:
kfree(hwctx->col_list);
-unpin:
+free_entity:
+ drm_sched_entity_destroy(&priv->entity);
+free_sched:
+ drm_sched_fini(&priv->sched);
+free_cmd_bufs:
+ for (i = 0; i < ARRAY_SIZE(priv->cmd_buf); i++) {
+ if (!priv->cmd_buf[i])
+ continue;
+ drm_gem_object_put(to_gobj(priv->cmd_buf[i]));
+ }
amdxdna_gem_unpin(heap);
put_heap:
drm_gem_object_put(to_gobj(heap));
@@ -196,11 +643,35 @@ int aie2_hwctx_init(struct amdxdna_hwctx *hwctx)
void aie2_hwctx_fini(struct amdxdna_hwctx *hwctx)
{
+ struct amdxdna_dev *xdna;
+ int idx;
+
+ xdna = hwctx->client->xdna;
+ drm_sched_wqueue_stop(&hwctx->priv->sched);
+
+ /* Now, scheduler will not send command to device. */
aie2_release_resource(hwctx);
+ /*
+ * All submitted commands are aborted.
+ * Restart scheduler queues to cleanup jobs. The amdxdna_sched_job_run()
+ * will return NODEV if it is called.
+ */
+ drm_sched_wqueue_start(&hwctx->priv->sched);
+
+ aie2_hwctx_wait_for_idle(hwctx);
+ drm_sched_entity_destroy(&hwctx->priv->entity);
+ drm_sched_fini(&hwctx->priv->sched);
+ aie2_ctx_syncobj_destroy(hwctx);
+
+ XDNA_DBG(xdna, "%s sequence number %lld", hwctx->name, hwctx->priv->seq);
+
+ for (idx = 0; idx < ARRAY_SIZE(hwctx->priv->cmd_buf); idx++)
+ drm_gem_object_put(to_gobj(hwctx->priv->cmd_buf[idx]));
amdxdna_gem_unpin(hwctx->priv->heap);
drm_gem_object_put(to_gobj(hwctx->priv->heap));
+ mutex_destroy(&hwctx->priv->io_lock);
kfree(hwctx->col_list);
kfree(hwctx->priv);
kfree(hwctx->cus);
@@ -267,3 +738,160 @@ int aie2_hwctx_config(struct amdxdna_hwctx *hwctx, u32 type, u64 value, void *bu
return -EOPNOTSUPP;
}
}
+
+static int aie2_populate_range(struct amdxdna_gem_obj *abo)
+{
+ struct amdxdna_dev *xdna = to_xdna_dev(to_gobj(abo)->dev);
+ struct mm_struct *mm = abo->mem.notifier.mm;
+ struct hmm_range range = { 0 };
+ unsigned long timeout;
+ int ret;
+
+ XDNA_INFO_ONCE(xdna, "populate memory range %llx size %lx",
+ abo->mem.userptr, abo->mem.size);
+ range.notifier = &abo->mem.notifier;
+ range.start = abo->mem.userptr;
+ range.end = abo->mem.userptr + abo->mem.size;
+ range.hmm_pfns = abo->mem.pfns;
+ range.default_flags = HMM_PFN_REQ_FAULT;
+
+ if (!mmget_not_zero(mm))
+ return -EFAULT;
+
+ timeout = jiffies + msecs_to_jiffies(HMM_RANGE_DEFAULT_TIMEOUT);
+again:
+ range.notifier_seq = mmu_interval_read_begin(&abo->mem.notifier);
+ mmap_read_lock(mm);
+ ret = hmm_range_fault(&range);
+ mmap_read_unlock(mm);
+ if (ret) {
+ if (time_after(jiffies, timeout)) {
+ ret = -ETIME;
+ goto put_mm;
+ }
+
+ if (ret == -EBUSY)
+ goto again;
+
+ goto put_mm;
+ }
+
+ read_lock(&xdna->notifier_lock);
+ if (mmu_interval_read_retry(&abo->mem.notifier, range.notifier_seq)) {
+ read_unlock(&xdna->notifier_lock);
+ goto again;
+ }
+ abo->mem.map_invalid = false;
+ read_unlock(&xdna->notifier_lock);
+
+put_mm:
+ mmput(mm);
+ return ret;
+}
+
+static void aie2_hwctx_push_job(struct amdxdna_sched_job *job, u64 *seq)
+{
+ struct amdxdna_hwctx *hwctx = job->hwctx;
+
+ mutex_lock(&hwctx->priv->io_lock);
+ drm_sched_job_arm(&job->base);
+ job->seq = hwctx->priv->seq++;
+ *seq = job->seq;
+
+ job->out_fence = dma_fence_get(&job->base.s_fence->finished);
+ drm_sched_entity_push_job(&job->base);
+ aie2_ctx_syncobj_add_fence(hwctx, job->out_fence, *seq);
+ mutex_unlock(&hwctx->priv->io_lock);
+}
+
+int aie2_cmd_submit(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job, u64 *seq)
+{
+ struct amdxdna_dev *xdna = hwctx->client->xdna;
+ struct ww_acquire_ctx acquire_ctx;
+ struct amdxdna_gem_obj *abo;
+ unsigned long timeout = 0;
+ int ret, i;
+
+ ret = down_interruptible(&hwctx->priv->job_sem);
+ if (ret) {
+ XDNA_ERR(xdna, "Grab job sem failed, ret %d", ret);
+ return ret;
+ }
+
+ ret = drm_sched_job_init(&job->base, &hwctx->priv->entity, 1, hwctx);
+ if (ret) {
+ XDNA_ERR(xdna, "DRM job init failed, ret %d", ret);
+ goto up_sem;
+ }
+
+retry:
+ ret = drm_gem_lock_reservations(job->bos, job->bo_cnt, &acquire_ctx);
+ if (ret) {
+ XDNA_WARN(xdna, "Failed to lock BOs, ret %d", ret);
+ goto cleanup_job;
+ }
+
+ for (i = 0; i < job->bo_cnt; i++) {
+ ret = dma_resv_reserve_fences(job->bos[i]->resv, 1);
+ if (ret) {
+ XDNA_WARN(xdna, "Failed to reserve fences %d", ret);
+ drm_gem_unlock_reservations(job->bos, job->bo_cnt, &acquire_ctx);
+ goto cleanup_job;
+ }
+ }
+
+ read_lock(&xdna->notifier_lock);
+ for (i = 0; i < job->bo_cnt; i++) {
+ abo = to_xdna_obj(job->bos[i]);
+ if (abo->mem.map_invalid) {
+ read_unlock(&xdna->notifier_lock);
+ drm_gem_unlock_reservations(job->bos, job->bo_cnt, &acquire_ctx);
+ if (!timeout) {
+ timeout = jiffies +
+ msecs_to_jiffies(HMM_RANGE_DEFAULT_TIMEOUT);
+ } else if (time_after(jiffies, timeout)) {
+ ret = -ETIME;
+ goto cleanup_job;
+ }
+
+ ret = aie2_populate_range(abo);
+ if (ret)
+ goto cleanup_job;
+ goto retry;
+ }
+ }
+
+ for (i = 0; i < job->bo_cnt; i++)
+ dma_resv_add_fence(job->bos[i]->resv, job->fence, DMA_RESV_USAGE_WRITE);
+
+ read_unlock(&xdna->notifier_lock);
+ drm_gem_unlock_reservations(job->bos, job->bo_cnt, &acquire_ctx);
+
+ aie2_hwctx_push_job(job, seq);
+
+ return 0;
+
+cleanup_job:
+ drm_sched_job_cleanup(&job->base);
+up_sem:
+ up(&hwctx->priv->job_sem);
+ job->job_done = true;
+ return ret;
+}
+
+void aie2_hmm_invalidate(struct amdxdna_gem_obj *abo,
+ unsigned long cur_seq)
+{
+ struct amdxdna_dev *xdna = to_xdna_dev(to_gobj(abo)->dev);
+ struct drm_gem_object *gobj = to_gobj(abo);
+ long ret;
+
+ write_lock(&xdna->notifier_lock);
+ abo->mem.map_invalid = true;
+ mmu_interval_set_seq(&abo->mem.notifier, cur_seq);
+ write_unlock(&xdna->notifier_lock);
+ ret = dma_resv_wait_timeout(gobj->resv, DMA_RESV_USAGE_BOOKKEEP,
+ true, MAX_SCHEDULE_TIMEOUT);
+ if (!ret || ret == -ERESTARTSYS)
+ XDNA_ERR(xdna, "Failed to wait for bo, ret %ld", ret);
+}
diff --git a/drivers/accel/amdxdna/aie2_message.c b/drivers/accel/amdxdna/aie2_message.c
index 40d9e4261e8b..db62954eb378 100644
--- a/drivers/accel/amdxdna/aie2_message.c
+++ b/drivers/accel/amdxdna/aie2_message.c
@@ -4,10 +4,12 @@
*/
#include <drm/amdxdna_accel.h>
+#include <drm/drm_cache.h>
#include <drm/drm_device.h>
#include <drm/drm_gem.h>
#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_print.h>
+#include <drm/gpu_scheduler.h>
#include <linux/bitfield.h>
#include <linux/errno.h>
#include <linux/pci.h>
@@ -362,3 +364,344 @@ int aie2_config_cu(struct amdxdna_hwctx *hwctx)
msg.opcode, resp.status, ret);
return ret;
}
+
+int aie2_execbuf(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job,
+ int (*notify_cb)(void *, const u32 *, size_t))
+{
+ struct mailbox_channel *chann = hwctx->priv->mbox_chann;
+ struct amdxdna_dev *xdna = hwctx->client->xdna;
+ struct amdxdna_gem_obj *cmd_abo = job->cmd_bo;
+ union {
+ struct execute_buffer_req ebuf;
+ struct exec_dpu_req dpu;
+ } req;
+ struct xdna_mailbox_msg msg;
+ u32 payload_len;
+ void *payload;
+ int cu_idx;
+ int ret;
+ u32 op;
+
+ if (!chann)
+ return -ENODEV;
+
+ payload = amdxdna_cmd_get_payload(cmd_abo, &payload_len);
+ if (!payload) {
+ XDNA_ERR(xdna, "Invalid command, cannot get payload");
+ return -EINVAL;
+ }
+
+ cu_idx = amdxdna_cmd_get_cu_idx(cmd_abo);
+ if (cu_idx < 0) {
+ XDNA_DBG(xdna, "Invalid cu idx");
+ return -EINVAL;
+ }
+
+ op = amdxdna_cmd_get_op(cmd_abo);
+ switch (op) {
+ case ERT_START_CU:
+ if (unlikely(payload_len > sizeof(req.ebuf.payload)))
+ XDNA_DBG(xdna, "Invalid ebuf payload len: %d", payload_len);
+ req.ebuf.cu_idx = cu_idx;
+ memcpy(req.ebuf.payload, payload, sizeof(req.ebuf.payload));
+ msg.send_size = sizeof(req.ebuf);
+ msg.opcode = MSG_OP_EXECUTE_BUFFER_CF;
+ break;
+ case ERT_START_NPU: {
+ struct amdxdna_cmd_start_npu *sn = payload;
+
+ if (unlikely(payload_len - sizeof(*sn) > sizeof(req.dpu.payload)))
+ XDNA_DBG(xdna, "Invalid dpu payload len: %d", payload_len);
+ req.dpu.inst_buf_addr = sn->buffer;
+ req.dpu.inst_size = sn->buffer_size;
+ req.dpu.inst_prop_cnt = sn->prop_count;
+ req.dpu.cu_idx = cu_idx;
+ memcpy(req.dpu.payload, sn->prop_args, sizeof(req.dpu.payload));
+ msg.send_size = sizeof(req.dpu);
+ msg.opcode = MSG_OP_EXEC_DPU;
+ break;
+ }
+ default:
+ XDNA_DBG(xdna, "Invalid ERT cmd op code: %d", op);
+ return -EINVAL;
+ }
+ msg.handle = job;
+ msg.notify_cb = notify_cb;
+ msg.send_data = (u8 *)&req;
+ print_hex_dump_debug("cmd: ", DUMP_PREFIX_OFFSET, 16, 4, &req,
+ 0x40, false);
+
+ ret = xdna_mailbox_send_msg(chann, &msg, TX_TIMEOUT);
+ if (ret) {
+ XDNA_ERR(xdna, "Send message failed");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int
+aie2_cmdlist_fill_one_slot_cf(void *cmd_buf, u32 offset,
+ struct amdxdna_gem_obj *abo, u32 *size)
+{
+ struct cmd_chain_slot_execbuf_cf *buf = cmd_buf + offset;
+ int cu_idx = amdxdna_cmd_get_cu_idx(abo);
+ u32 payload_len;
+ void *payload;
+
+ if (cu_idx < 0)
+ return -EINVAL;
+
+ payload = amdxdna_cmd_get_payload(abo, &payload_len);
+ if (!payload)
+ return -EINVAL;
+
+ if (!slot_cf_has_space(offset, payload_len))
+ return -ENOSPC;
+
+ buf->cu_idx = cu_idx;
+ buf->arg_cnt = payload_len / sizeof(u32);
+ memcpy(buf->args, payload, payload_len);
+ /* Accurate buf size to hint firmware to do necessary copy */
+ *size = sizeof(*buf) + payload_len;
+ return 0;
+}
+
+static int
+aie2_cmdlist_fill_one_slot_dpu(void *cmd_buf, u32 offset,
+ struct amdxdna_gem_obj *abo, u32 *size)
+{
+ struct cmd_chain_slot_dpu *buf = cmd_buf + offset;
+ int cu_idx = amdxdna_cmd_get_cu_idx(abo);
+ struct amdxdna_cmd_start_npu *sn;
+ u32 payload_len;
+ void *payload;
+ u32 arg_sz;
+
+ if (cu_idx < 0)
+ return -EINVAL;
+
+ payload = amdxdna_cmd_get_payload(abo, &payload_len);
+ if (!payload)
+ return -EINVAL;
+ sn = payload;
+ arg_sz = payload_len - sizeof(*sn);
+ if (payload_len < sizeof(*sn) || arg_sz > MAX_DPU_ARGS_SIZE)
+ return -EINVAL;
+
+ if (!slot_dpu_has_space(offset, arg_sz))
+ return -ENOSPC;
+
+ buf->inst_buf_addr = sn->buffer;
+ buf->inst_size = sn->buffer_size;
+ buf->inst_prop_cnt = sn->prop_count;
+ buf->cu_idx = cu_idx;
+ buf->arg_cnt = arg_sz / sizeof(u32);
+ memcpy(buf->args, sn->prop_args, arg_sz);
+
+ /* Accurate buf size to hint firmware to do necessary copy */
+ *size += sizeof(*buf) + arg_sz;
+ return 0;
+}
+
+static int
+aie2_cmdlist_fill_one_slot(u32 op, struct amdxdna_gem_obj *cmdbuf_abo, u32 offset,
+ struct amdxdna_gem_obj *abo, u32 *size)
+{
+ u32 this_op = amdxdna_cmd_get_op(abo);
+ void *cmd_buf = cmdbuf_abo->mem.kva;
+ int ret;
+
+ if (this_op != op) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ switch (op) {
+ case ERT_START_CU:
+ ret = aie2_cmdlist_fill_one_slot_cf(cmd_buf, offset, abo, size);
+ break;
+ case ERT_START_NPU:
+ ret = aie2_cmdlist_fill_one_slot_dpu(cmd_buf, offset, abo, size);
+ break;
+ default:
+ ret = -EOPNOTSUPP;
+ }
+
+done:
+ if (ret) {
+ XDNA_ERR(abo->client->xdna, "Can't fill slot for cmd op %d ret %d",
+ op, ret);
+ }
+ return ret;
+}
+
+static inline struct amdxdna_gem_obj *
+aie2_cmdlist_get_cmd_buf(struct amdxdna_sched_job *job)
+{
+ int idx = get_job_idx(job->seq);
+
+ return job->hwctx->priv->cmd_buf[idx];
+}
+
+static void
+aie2_cmdlist_prepare_request(struct cmd_chain_req *req,
+ struct amdxdna_gem_obj *cmdbuf_abo, u32 size, u32 cnt)
+{
+ req->buf_addr = cmdbuf_abo->mem.dev_addr;
+ req->buf_size = size;
+ req->count = cnt;
+ drm_clflush_virt_range(cmdbuf_abo->mem.kva, size);
+ XDNA_DBG(cmdbuf_abo->client->xdna, "Command buf addr 0x%llx size 0x%x count %d",
+ req->buf_addr, size, cnt);
+}
+
+static inline u32
+aie2_cmd_op_to_msg_op(u32 op)
+{
+ switch (op) {
+ case ERT_START_CU:
+ return MSG_OP_CHAIN_EXEC_BUFFER_CF;
+ case ERT_START_NPU:
+ return MSG_OP_CHAIN_EXEC_DPU;
+ default:
+ return MSG_OP_MAX_OPCODE;
+ }
+}
+
+int aie2_cmdlist_multi_execbuf(struct amdxdna_hwctx *hwctx,
+ struct amdxdna_sched_job *job,
+ int (*notify_cb)(void *, const u32 *, size_t))
+{
+ struct amdxdna_gem_obj *cmdbuf_abo = aie2_cmdlist_get_cmd_buf(job);
+ struct mailbox_channel *chann = hwctx->priv->mbox_chann;
+ struct amdxdna_client *client = hwctx->client;
+ struct amdxdna_gem_obj *cmd_abo = job->cmd_bo;
+ struct amdxdna_cmd_chain *payload;
+ struct xdna_mailbox_msg msg;
+ struct cmd_chain_req req;
+ u32 payload_len;
+ u32 offset = 0;
+ u32 size;
+ int ret;
+ u32 op;
+ u32 i;
+
+ op = amdxdna_cmd_get_op(cmd_abo);
+ payload = amdxdna_cmd_get_payload(cmd_abo, &payload_len);
+ if (op != ERT_CMD_CHAIN || !payload ||
+ payload_len < struct_size(payload, data, payload->command_count))
+ return -EINVAL;
+
+ for (i = 0; i < payload->command_count; i++) {
+ u32 boh = (u32)(payload->data[i]);
+ struct amdxdna_gem_obj *abo;
+
+ abo = amdxdna_gem_get_obj(client, boh, AMDXDNA_BO_CMD);
+ if (!abo) {
+ XDNA_ERR(client->xdna, "Failed to find cmd BO %d", boh);
+ return -ENOENT;
+ }
+
+ /* All sub-cmd should have same op, use the first one. */
+ if (i == 0)
+ op = amdxdna_cmd_get_op(abo);
+
+ ret = aie2_cmdlist_fill_one_slot(op, cmdbuf_abo, offset, abo, &size);
+ amdxdna_gem_put_obj(abo);
+ if (ret)
+ return -EINVAL;
+
+ offset += size;
+ }
+
+ /* The offset is the accumulated total size of the cmd buffer */
+ aie2_cmdlist_prepare_request(&req, cmdbuf_abo, offset, payload->command_count);
+
+ msg.opcode = aie2_cmd_op_to_msg_op(op);
+ if (msg.opcode == MSG_OP_MAX_OPCODE)
+ return -EOPNOTSUPP;
+ msg.handle = job;
+ msg.notify_cb = notify_cb;
+ msg.send_data = (u8 *)&req;
+ msg.send_size = sizeof(req);
+ ret = xdna_mailbox_send_msg(chann, &msg, TX_TIMEOUT);
+ if (ret) {
+ XDNA_ERR(hwctx->client->xdna, "Send message failed");
+ return ret;
+ }
+
+ return 0;
+}
+
+int aie2_cmdlist_single_execbuf(struct amdxdna_hwctx *hwctx,
+ struct amdxdna_sched_job *job,
+ int (*notify_cb)(void *, const u32 *, size_t))
+{
+ struct amdxdna_gem_obj *cmdbuf_abo = aie2_cmdlist_get_cmd_buf(job);
+ struct mailbox_channel *chann = hwctx->priv->mbox_chann;
+ struct amdxdna_gem_obj *cmd_abo = job->cmd_bo;
+ struct xdna_mailbox_msg msg;
+ struct cmd_chain_req req;
+ u32 size;
+ int ret;
+ u32 op;
+
+ op = amdxdna_cmd_get_op(cmd_abo);
+ ret = aie2_cmdlist_fill_one_slot(op, cmdbuf_abo, 0, cmd_abo, &size);
+ if (ret)
+ return ret;
+
+ aie2_cmdlist_prepare_request(&req, cmdbuf_abo, size, 1);
+
+ msg.opcode = aie2_cmd_op_to_msg_op(op);
+ if (msg.opcode == MSG_OP_MAX_OPCODE)
+ return -EOPNOTSUPP;
+ msg.handle = job;
+ msg.notify_cb = notify_cb;
+ msg.send_data = (u8 *)&req;
+ msg.send_size = sizeof(req);
+ ret = xdna_mailbox_send_msg(chann, &msg, TX_TIMEOUT);
+ if (ret) {
+ XDNA_ERR(hwctx->client->xdna, "Send message failed");
+ return ret;
+ }
+
+ return 0;
+}
+
+int aie2_sync_bo(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job,
+ int (*notify_cb)(void *, const u32 *, size_t))
+{
+ struct mailbox_channel *chann = hwctx->priv->mbox_chann;
+ struct amdxdna_gem_obj *abo = to_xdna_obj(job->bos[0]);
+ struct amdxdna_dev *xdna = hwctx->client->xdna;
+ struct xdna_mailbox_msg msg;
+ struct sync_bo_req req;
+ int ret = 0;
+
+ req.src_addr = 0;
+ req.dst_addr = abo->mem.dev_addr - hwctx->client->dev_heap->mem.dev_addr;
+ req.size = abo->mem.size;
+
+ /* Device to Host */
+ req.type = FIELD_PREP(AIE2_MSG_SYNC_BO_SRC_TYPE, SYNC_BO_DEV_MEM) |
+ FIELD_PREP(AIE2_MSG_SYNC_BO_DST_TYPE, SYNC_BO_HOST_MEM);
+
+ XDNA_DBG(xdna, "sync %d bytes src(0x%llx) to dst(0x%llx) completed",
+ req.size, req.src_addr, req.dst_addr);
+
+ msg.handle = job;
+ msg.notify_cb = notify_cb;
+ msg.send_data = (u8 *)&req;
+ msg.send_size = sizeof(req);
+ msg.opcode = MSG_OP_SYNC_BO;
+
+ ret = xdna_mailbox_send_msg(chann, &msg, TX_TIMEOUT);
+ if (ret) {
+ XDNA_ERR(xdna, "Send message failed");
+ return ret;
+ }
+
+ return 0;
+}
diff --git a/drivers/accel/amdxdna/aie2_pci.c b/drivers/accel/amdxdna/aie2_pci.c
index caeb07d1dc6b..fb369d615969 100644
--- a/drivers/accel/amdxdna/aie2_pci.c
+++ b/drivers/accel/amdxdna/aie2_pci.c
@@ -5,8 +5,10 @@
#include <drm/amdxdna_accel.h>
#include <drm/drm_device.h>
+#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_managed.h>
#include <drm/drm_print.h>
+#include <drm/gpu_scheduler.h>
#include <linux/errno.h>
#include <linux/firmware.h>
#include <linux/iommu.h>
@@ -17,6 +19,7 @@
#include "aie2_pci.h"
#include "aie2_solver.h"
#include "amdxdna_ctx.h"
+#include "amdxdna_gem.h"
#include "amdxdna_mailbox.h"
#include "amdxdna_pci_drv.h"
@@ -495,4 +498,6 @@ const struct amdxdna_dev_ops aie2_ops = {
.hwctx_init = aie2_hwctx_init,
.hwctx_fini = aie2_hwctx_fini,
.hwctx_config = aie2_hwctx_config,
+ .cmd_submit = aie2_cmd_submit,
+ .hmm_invalidate = aie2_hmm_invalidate,
};
diff --git a/drivers/accel/amdxdna/aie2_pci.h b/drivers/accel/amdxdna/aie2_pci.h
index 3ac936e2c9d1..bc6910875d9d 100644
--- a/drivers/accel/amdxdna/aie2_pci.h
+++ b/drivers/accel/amdxdna/aie2_pci.h
@@ -6,6 +6,8 @@
#ifndef _AIE2_PCI_H_
#define _AIE2_PCI_H_
+#include <linux/semaphore.h>
+
#include "amdxdna_mailbox.h"
#define AIE2_INTERVAL 20000 /* us */
@@ -76,8 +78,10 @@ enum psp_reg_idx {
PSP_MAX_REGS /* Keep this at the end */
};
+struct amdxdna_client;
struct amdxdna_fw_ver;
struct amdxdna_hwctx;
+struct amdxdna_sched_job;
struct psp_config {
const void *fw_buf;
@@ -118,9 +122,31 @@ struct rt_config {
u32 value;
};
+/*
+ * Define the maximum number of pending commands in a hardware context.
+ * Must be power of 2!
+ */
+#define HWCTX_MAX_CMDS 4
+#define get_job_idx(seq) ((seq) & (HWCTX_MAX_CMDS - 1))
struct amdxdna_hwctx_priv {
struct amdxdna_gem_obj *heap;
void *mbox_chann;
+
+ struct drm_gpu_scheduler sched;
+ struct drm_sched_entity entity;
+
+ struct mutex io_lock; /* protect seq and cmd order */
+ struct wait_queue_head job_free_wq;
+ u32 num_pending;
+ u64 seq;
+ struct semaphore job_sem;
+ bool job_done;
+
+ /* Completed job counter */
+ u64 completed;
+
+ struct amdxdna_gem_obj *cmd_buf[HWCTX_MAX_CMDS];
+ struct drm_syncobj *syncobj;
};
struct amdxdna_dev_hdl {
@@ -199,10 +225,24 @@ int aie2_create_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwct
int aie2_destroy_context(struct amdxdna_dev_hdl *ndev, struct amdxdna_hwctx *hwctx);
int aie2_map_host_buf(struct amdxdna_dev_hdl *ndev, u32 context_id, u64 addr, u64 size);
int aie2_config_cu(struct amdxdna_hwctx *hwctx);
+int aie2_execbuf(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job,
+ int (*notify_cb)(void *, const u32 *, size_t));
+int aie2_cmdlist_single_execbuf(struct amdxdna_hwctx *hwctx,
+ struct amdxdna_sched_job *job,
+ int (*notify_cb)(void *, const u32 *, size_t));
+int aie2_cmdlist_multi_execbuf(struct amdxdna_hwctx *hwctx,
+ struct amdxdna_sched_job *job,
+ int (*notify_cb)(void *, const u32 *, size_t));
+int aie2_sync_bo(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job,
+ int (*notify_cb)(void *, const u32 *, size_t));
/* aie2_hwctx.c */
int aie2_hwctx_init(struct amdxdna_hwctx *hwctx);
void aie2_hwctx_fini(struct amdxdna_hwctx *hwctx);
int aie2_hwctx_config(struct amdxdna_hwctx *hwctx, u32 type, u64 value, void *buf, u32 size);
+int aie2_cmd_submit(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job, u64 *seq);
+void aie2_hmm_invalidate(struct amdxdna_gem_obj *abo, unsigned long cur_seq);
+void aie2_stop_ctx_by_col_map(struct amdxdna_client *client, u32 col_map);
+void aie2_restart_ctx(struct amdxdna_client *client);
#endif /* _AIE2_PCI_H_ */
diff --git a/drivers/accel/amdxdna/aie2_psp.c b/drivers/accel/amdxdna/aie2_psp.c
index b03501e81065..dc3a072ce3b6 100644
--- a/drivers/accel/amdxdna/aie2_psp.c
+++ b/drivers/accel/amdxdna/aie2_psp.c
@@ -4,8 +4,10 @@
*/
#include <drm/drm_device.h>
+#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_managed.h>
#include <drm/drm_print.h>
+#include <drm/gpu_scheduler.h>
#include <linux/bitfield.h>
#include <linux/iopoll.h>
diff --git a/drivers/accel/amdxdna/aie2_smu.c b/drivers/accel/amdxdna/aie2_smu.c
index 3fa7064649aa..91893d438da7 100644
--- a/drivers/accel/amdxdna/aie2_smu.c
+++ b/drivers/accel/amdxdna/aie2_smu.c
@@ -4,7 +4,9 @@
*/
#include <drm/drm_device.h>
+#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_print.h>
+#include <drm/gpu_scheduler.h>
#include <linux/iopoll.h>
#include "aie2_pci.h"
diff --git a/drivers/accel/amdxdna/amdxdna_ctx.c b/drivers/accel/amdxdna/amdxdna_ctx.c
index 9489399adea1..13cfbab9caa0 100644
--- a/drivers/accel/amdxdna/amdxdna_ctx.c
+++ b/drivers/accel/amdxdna/amdxdna_ctx.c
@@ -7,17 +7,65 @@
#include <drm/drm_device.h>
#include <drm/drm_drv.h>
#include <drm/drm_file.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_print.h>
+#include <drm/gpu_scheduler.h>
+#include <trace/events/amdxdna.h>
#include "amdxdna_ctx.h"
+#include "amdxdna_gem.h"
#include "amdxdna_pci_drv.h"
#define MAX_HWCTX_ID 255
+#define MAX_ARG_COUNT 4095
-static void amdxdna_hwctx_destroy(struct amdxdna_hwctx *hwctx)
+struct amdxdna_fence {
+ struct dma_fence base;
+ spinlock_t lock; /* for base */
+ struct amdxdna_hwctx *hwctx;
+};
+
+static const char *amdxdna_fence_get_driver_name(struct dma_fence *fence)
+{
+ return KBUILD_MODNAME;
+}
+
+static const char *amdxdna_fence_get_timeline_name(struct dma_fence *fence)
+{
+ struct amdxdna_fence *xdna_fence;
+
+ xdna_fence = container_of(fence, struct amdxdna_fence, base);
+
+ return xdna_fence->hwctx->name;
+}
+
+static const struct dma_fence_ops fence_ops = {
+ .get_driver_name = amdxdna_fence_get_driver_name,
+ .get_timeline_name = amdxdna_fence_get_timeline_name,
+};
+
+static struct dma_fence *amdxdna_fence_create(struct amdxdna_hwctx *hwctx)
+{
+ struct amdxdna_fence *fence;
+
+ fence = kzalloc(sizeof(*fence), GFP_KERNEL);
+ if (!fence)
+ return NULL;
+
+ fence->hwctx = hwctx;
+ spin_lock_init(&fence->lock);
+ dma_fence_init(&fence->base, &fence_ops, &fence->lock, hwctx->id, 0);
+ return &fence->base;
+}
+
+static void amdxdna_hwctx_destroy_rcu(struct amdxdna_hwctx *hwctx,
+ struct srcu_struct *ss)
{
struct amdxdna_dev *xdna = hwctx->client->xdna;
+ synchronize_srcu(ss);
+
/* At this point, user is not able to submit new commands */
mutex_lock(&xdna->dev_lock);
xdna->dev_info->ops->hwctx_fini(hwctx);
@@ -27,6 +75,46 @@ static void amdxdna_hwctx_destroy(struct amdxdna_hwctx *hwctx)
kfree(hwctx);
}
+void *amdxdna_cmd_get_payload(struct amdxdna_gem_obj *abo, u32 *size)
+{
+ struct amdxdna_cmd *cmd = abo->mem.kva;
+ u32 num_masks, count;
+
+ if (amdxdna_cmd_get_op(abo) == ERT_CMD_CHAIN)
+ num_masks = 0;
+ else
+ num_masks = 1 + FIELD_GET(AMDXDNA_CMD_EXTRA_CU_MASK, cmd->header);
+
+ if (size) {
+ count = FIELD_GET(AMDXDNA_CMD_COUNT, cmd->header);
+ if (unlikely(count <= num_masks)) {
+ *size = 0;
+ return NULL;
+ }
+ *size = (count - num_masks) * sizeof(u32);
+ }
+ return &cmd->data[num_masks];
+}
+
+int amdxdna_cmd_get_cu_idx(struct amdxdna_gem_obj *abo)
+{
+ struct amdxdna_cmd *cmd = abo->mem.kva;
+ u32 num_masks, i;
+ u32 *cu_mask;
+
+ if (amdxdna_cmd_get_op(abo) == ERT_CMD_CHAIN)
+ return -1;
+
+ num_masks = 1 + FIELD_GET(AMDXDNA_CMD_EXTRA_CU_MASK, cmd->header);
+ cu_mask = cmd->data;
+ for (i = 0; i < num_masks; i++) {
+ if (cu_mask[i])
+ return ffs(cu_mask[i]) - 1;
+ }
+
+ return -1;
+}
+
/*
* This should be called in close() and remove(). DO NOT call in other syscalls.
* This guarantee that when hwctx and resources will be released, if user
@@ -43,7 +131,7 @@ void amdxdna_hwctx_remove_all(struct amdxdna_client *client)
client->pid, hwctx->id);
idr_remove(&client->hwctx_idr, hwctx->id);
mutex_unlock(&client->hwctx_lock);
- amdxdna_hwctx_destroy(hwctx);
+ amdxdna_hwctx_destroy_rcu(hwctx, &client->hwctx_srcu);
mutex_lock(&client->hwctx_lock);
}
mutex_unlock(&client->hwctx_lock);
@@ -135,6 +223,12 @@ int amdxdna_drm_destroy_hwctx_ioctl(struct drm_device *dev, void *data, struct d
if (!drm_dev_enter(dev, &idx))
return -ENODEV;
+ /*
+ * Use hwctx_lock to achieve exclusion with other hwctx writers,
+ * SRCU to synchronize with exec/wait command ioctls.
+ *
+ * The pushed jobs are handled by DRM scheduler during destroy.
+ */
mutex_lock(&client->hwctx_lock);
hwctx = idr_find(&client->hwctx_idr, args->handle);
if (!hwctx) {
@@ -147,7 +241,7 @@ int amdxdna_drm_destroy_hwctx_ioctl(struct drm_device *dev, void *data, struct d
idr_remove(&client->hwctx_idr, hwctx->id);
mutex_unlock(&client->hwctx_lock);
- amdxdna_hwctx_destroy(hwctx);
+ amdxdna_hwctx_destroy_rcu(hwctx, &client->hwctx_srcu);
XDNA_DBG(xdna, "PID %d destroyed HW context %d", client->pid, args->handle);
out:
@@ -161,10 +255,10 @@ int amdxdna_drm_config_hwctx_ioctl(struct drm_device *dev, void *data, struct dr
struct amdxdna_drm_config_hwctx *args = data;
struct amdxdna_dev *xdna = to_xdna_dev(dev);
struct amdxdna_hwctx *hwctx;
+ int ret, idx;
u32 buf_size;
void *buf;
u64 val;
- int ret;
if (!xdna->dev_info->ops->hwctx_config)
return -EOPNOTSUPP;
@@ -203,17 +297,231 @@ int amdxdna_drm_config_hwctx_ioctl(struct drm_device *dev, void *data, struct dr
}
mutex_lock(&xdna->dev_lock);
+ idx = srcu_read_lock(&client->hwctx_srcu);
hwctx = idr_find(&client->hwctx_idr, args->handle);
if (!hwctx) {
XDNA_DBG(xdna, "PID %d failed to get hwctx %d", client->pid, args->handle);
ret = -EINVAL;
- goto unlock;
+ goto unlock_srcu;
}
ret = xdna->dev_info->ops->hwctx_config(hwctx, args->param_type, val, buf, buf_size);
-unlock:
+unlock_srcu:
+ srcu_read_unlock(&client->hwctx_srcu, idx);
mutex_unlock(&xdna->dev_lock);
kfree(buf);
return ret;
}
+
+static void
+amdxdna_arg_bos_put(struct amdxdna_sched_job *job)
+{
+ int i;
+
+ for (i = 0; i < job->bo_cnt; i++) {
+ if (!job->bos[i])
+ break;
+ drm_gem_object_put(job->bos[i]);
+ }
+}
+
+static int
+amdxdna_arg_bos_lookup(struct amdxdna_client *client,
+ struct amdxdna_sched_job *job,
+ u32 *bo_hdls, u32 bo_cnt)
+{
+ struct drm_gem_object *gobj;
+ int i, ret;
+
+ job->bo_cnt = bo_cnt;
+ for (i = 0; i < job->bo_cnt; i++) {
+ struct amdxdna_gem_obj *abo;
+
+ gobj = drm_gem_object_lookup(client->filp, bo_hdls[i]);
+ if (!gobj) {
+ ret = -ENOENT;
+ goto put_shmem_bo;
+ }
+ abo = to_xdna_obj(gobj);
+
+ mutex_lock(&abo->lock);
+ if (abo->pinned) {
+ mutex_unlock(&abo->lock);
+ job->bos[i] = gobj;
+ continue;
+ }
+
+ ret = amdxdna_gem_pin_nolock(abo);
+ if (ret) {
+ mutex_unlock(&abo->lock);
+ drm_gem_object_put(gobj);
+ goto put_shmem_bo;
+ }
+ abo->pinned = true;
+ mutex_unlock(&abo->lock);
+
+ job->bos[i] = gobj;
+ }
+
+ return 0;
+
+put_shmem_bo:
+ amdxdna_arg_bos_put(job);
+ return ret;
+}
+
+void amdxdna_sched_job_cleanup(struct amdxdna_sched_job *job)
+{
+ trace_amdxdna_debug_point(job->hwctx->name, job->seq, "job release");
+ amdxdna_arg_bos_put(job);
+ amdxdna_gem_put_obj(job->cmd_bo);
+}
+
+int amdxdna_cmd_submit(struct amdxdna_client *client,
+ u32 cmd_bo_hdl, u32 *arg_bo_hdls, u32 arg_bo_cnt,
+ u32 hwctx_hdl, u64 *seq)
+{
+ struct amdxdna_dev *xdna = client->xdna;
+ struct amdxdna_sched_job *job;
+ struct amdxdna_hwctx *hwctx;
+ int ret, idx;
+
+ XDNA_DBG(xdna, "Command BO hdl %d, Arg BO count %d", cmd_bo_hdl, arg_bo_cnt);
+ job = kzalloc(struct_size(job, bos, arg_bo_cnt), GFP_KERNEL);
+ if (!job)
+ return -ENOMEM;
+
+ if (cmd_bo_hdl != AMDXDNA_INVALID_BO_HANDLE) {
+ job->cmd_bo = amdxdna_gem_get_obj(client, cmd_bo_hdl, AMDXDNA_BO_CMD);
+ if (!job->cmd_bo) {
+ XDNA_ERR(xdna, "Failed to get cmd bo from %d", cmd_bo_hdl);
+ ret = -EINVAL;
+ goto free_job;
+ }
+ } else {
+ job->cmd_bo = NULL;
+ }
+
+ ret = amdxdna_arg_bos_lookup(client, job, arg_bo_hdls, arg_bo_cnt);
+ if (ret) {
+ XDNA_ERR(xdna, "Argument BOs lookup failed, ret %d", ret);
+ goto cmd_put;
+ }
+
+ idx = srcu_read_lock(&client->hwctx_srcu);
+ hwctx = idr_find(&client->hwctx_idr, hwctx_hdl);
+ if (!hwctx) {
+ XDNA_DBG(xdna, "PID %d failed to get hwctx %d",
+ client->pid, hwctx_hdl);
+ ret = -EINVAL;
+ goto unlock_srcu;
+ }
+
+ if (hwctx->status != HWCTX_STAT_READY) {
+ XDNA_ERR(xdna, "HW Context is not ready");
+ ret = -EINVAL;
+ goto unlock_srcu;
+ }
+
+ job->hwctx = hwctx;
+ job->mm = current->mm;
+
+ job->fence = amdxdna_fence_create(hwctx);
+ if (!job->fence) {
+ XDNA_ERR(xdna, "Failed to create fence");
+ ret = -ENOMEM;
+ goto unlock_srcu;
+ }
+ kref_init(&job->refcnt);
+
+ ret = xdna->dev_info->ops->cmd_submit(hwctx, job, seq);
+ if (ret)
+ goto put_fence;
+
+ /*
+ * The amdxdna_hwctx_destroy_rcu() will release hwctx and associated
+ * resource after synchronize_srcu(). The submitted jobs should be
+ * handled by the queue, for example DRM scheduler, in device layer.
+ * For here we can unlock SRCU.
+ */
+ srcu_read_unlock(&client->hwctx_srcu, idx);
+ trace_amdxdna_debug_point(hwctx->name, *seq, "job pushed");
+
+ return 0;
+
+put_fence:
+ dma_fence_put(job->fence);
+unlock_srcu:
+ srcu_read_unlock(&client->hwctx_srcu, idx);
+ amdxdna_arg_bos_put(job);
+cmd_put:
+ amdxdna_gem_put_obj(job->cmd_bo);
+free_job:
+ kfree(job);
+ return ret;
+}
+
+/*
+ * The submit command ioctl submits a command to firmware. One firmware command
+ * may contain multiple command BOs for processing as a whole.
+ * The command sequence number is returned which can be used for wait command ioctl.
+ */
+static int amdxdna_drm_submit_execbuf(struct amdxdna_client *client,
+ struct amdxdna_drm_exec_cmd *args)
+{
+ struct amdxdna_dev *xdna = client->xdna;
+ u32 *arg_bo_hdls;
+ u32 cmd_bo_hdl;
+ int ret;
+
+ if (!args->arg_count || args->arg_count > MAX_ARG_COUNT) {
+ XDNA_ERR(xdna, "Invalid arg bo count %d", args->arg_count);
+ return -EINVAL;
+ }
+
+ /* Only support single command for now. */
+ if (args->cmd_count != 1) {
+ XDNA_ERR(xdna, "Invalid cmd bo count %d", args->cmd_count);
+ return -EINVAL;
+ }
+
+ cmd_bo_hdl = (u32)args->cmd_handles;
+ arg_bo_hdls = kcalloc(args->arg_count, sizeof(u32), GFP_KERNEL);
+ if (!arg_bo_hdls)
+ return -ENOMEM;
+ ret = copy_from_user(arg_bo_hdls, u64_to_user_ptr(args->args),
+ args->arg_count * sizeof(u32));
+ if (ret) {
+ ret = -EFAULT;
+ goto free_cmd_bo_hdls;
+ }
+
+ ret = amdxdna_cmd_submit(client, cmd_bo_hdl, arg_bo_hdls,
+ args->arg_count, args->hwctx, &args->seq);
+ if (ret)
+ XDNA_DBG(xdna, "Submit cmds failed, ret %d", ret);
+
+free_cmd_bo_hdls:
+ kfree(arg_bo_hdls);
+ if (!ret)
+ XDNA_DBG(xdna, "Pushed cmd %lld to scheduler", args->seq);
+ return ret;
+}
+
+int amdxdna_drm_submit_cmd_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
+{
+ struct amdxdna_client *client = filp->driver_priv;
+ struct amdxdna_drm_exec_cmd *args = data;
+
+ if (args->ext || args->ext_flags)
+ return -EINVAL;
+
+ switch (args->type) {
+ case AMDXDNA_CMD_SUBMIT_EXEC_BUF:
+ return amdxdna_drm_submit_execbuf(client, args);
+ }
+
+ XDNA_ERR(client->xdna, "Invalid command type %d", args->type);
+ return -EINVAL;
+}
diff --git a/drivers/accel/amdxdna/amdxdna_ctx.h b/drivers/accel/amdxdna/amdxdna_ctx.h
index b409d0731ab8..18ed9bdbd6d8 100644
--- a/drivers/accel/amdxdna/amdxdna_ctx.h
+++ b/drivers/accel/amdxdna/amdxdna_ctx.h
@@ -6,6 +6,54 @@
#ifndef _AMDXDNA_CTX_H_
#define _AMDXDNA_CTX_H_
+#include <linux/bitfield.h>
+
+#include "amdxdna_gem.h"
+
+struct amdxdna_hwctx_priv;
+
+enum ert_cmd_opcode {
+ ERT_START_CU = 0,
+ ERT_CMD_CHAIN = 19,
+ ERT_START_NPU = 20,
+};
+
+enum ert_cmd_state {
+ ERT_CMD_STATE_INVALID,
+ ERT_CMD_STATE_NEW,
+ ERT_CMD_STATE_QUEUED,
+ ERT_CMD_STATE_RUNNING,
+ ERT_CMD_STATE_COMPLETED,
+ ERT_CMD_STATE_ERROR,
+ ERT_CMD_STATE_ABORT,
+ ERT_CMD_STATE_SUBMITTED,
+ ERT_CMD_STATE_TIMEOUT,
+ ERT_CMD_STATE_NORESPONSE,
+};
+
+/*
+ * Interpretation of the beginning of data payload for ERT_START_NPU in
+ * amdxdna_cmd. The rest of the payload in amdxdna_cmd is regular kernel args.
+ */
+struct amdxdna_cmd_start_npu {
+ u64 buffer; /* instruction buffer address */
+ u32 buffer_size; /* size of buffer in bytes */
+ u32 prop_count; /* properties count */
+ u32 prop_args[]; /* properties and regular kernel arguments */
+};
+
+/*
+ * Interpretation of the beginning of data payload for ERT_CMD_CHAIN in
+ * amdxdna_cmd. The rest of the payload in amdxdna_cmd is cmd BO handles.
+ */
+struct amdxdna_cmd_chain {
+ u32 command_count;
+ u32 submit_index;
+ u32 error_index;
+ u32 reserved[3];
+ u64 data[] __counted_by(command_count);
+};
+
/* Exec buffer command header format */
#define AMDXDNA_CMD_STATE GENMASK(3, 0)
#define AMDXDNA_CMD_EXTRA_CU_MASK GENMASK(11, 10)
@@ -41,9 +89,72 @@ struct amdxdna_hwctx {
u32 syncobj_hdl;
};
+#define drm_job_to_xdna_job(j) \
+ container_of(j, struct amdxdna_sched_job, base)
+
+struct amdxdna_sched_job {
+ struct drm_sched_job base;
+ struct kref refcnt;
+ struct amdxdna_hwctx *hwctx;
+ struct mm_struct *mm;
+ /* The fence to notice DRM scheduler that job is done by hardware */
+ struct dma_fence *fence;
+ /* user can wait on this fence */
+ struct dma_fence *out_fence;
+ bool job_done;
+ u64 seq;
+ struct amdxdna_gem_obj *cmd_bo;
+ size_t bo_cnt;
+ struct drm_gem_object *bos[] __counted_by(bo_cnt);
+};
+
+static inline u32
+amdxdna_cmd_get_op(struct amdxdna_gem_obj *abo)
+{
+ struct amdxdna_cmd *cmd = abo->mem.kva;
+
+ return FIELD_GET(AMDXDNA_CMD_OPCODE, cmd->header);
+}
+
+static inline void
+amdxdna_cmd_set_state(struct amdxdna_gem_obj *abo, enum ert_cmd_state s)
+{
+ struct amdxdna_cmd *cmd = abo->mem.kva;
+
+ cmd->header &= ~AMDXDNA_CMD_STATE;
+ cmd->header |= FIELD_PREP(AMDXDNA_CMD_STATE, s);
+}
+
+static inline enum ert_cmd_state
+amdxdna_cmd_get_state(struct amdxdna_gem_obj *abo)
+{
+ struct amdxdna_cmd *cmd = abo->mem.kva;
+
+ return FIELD_GET(AMDXDNA_CMD_STATE, cmd->header);
+}
+
+void *amdxdna_cmd_get_payload(struct amdxdna_gem_obj *abo, u32 *size);
+int amdxdna_cmd_get_cu_idx(struct amdxdna_gem_obj *abo);
+
+static inline u32 amdxdna_hwctx_col_map(struct amdxdna_hwctx *hwctx)
+{
+ return GENMASK(hwctx->start_col + hwctx->num_col - 1,
+ hwctx->start_col);
+}
+
+void amdxdna_sched_job_cleanup(struct amdxdna_sched_job *job);
void amdxdna_hwctx_remove_all(struct amdxdna_client *client);
+
+int amdxdna_cmd_submit(struct amdxdna_client *client,
+ u32 cmd_bo_hdls, u32 *arg_bo_hdls, u32 arg_bo_cnt,
+ u32 hwctx_hdl, u64 *seq);
+
+int amdxdna_cmd_wait(struct amdxdna_client *client, u32 hwctx_hdl,
+ u64 seq, u32 timeout);
+
int amdxdna_drm_create_hwctx_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
int amdxdna_drm_config_hwctx_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
int amdxdna_drm_destroy_hwctx_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
+int amdxdna_drm_submit_cmd_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
#endif /* _AMDXDNA_CTX_H_ */
diff --git a/drivers/accel/amdxdna/amdxdna_gem.c b/drivers/accel/amdxdna/amdxdna_gem.c
index f2ba86ae9e1a..4dfeca306d98 100644
--- a/drivers/accel/amdxdna/amdxdna_gem.c
+++ b/drivers/accel/amdxdna/amdxdna_gem.c
@@ -8,6 +8,7 @@
#include <drm/drm_device.h>
#include <drm/drm_gem.h>
#include <drm/drm_gem_shmem_helper.h>
+#include <drm/gpu_scheduler.h>
#include <linux/iosys-map.h>
#include <linux/vmalloc.h>
diff --git a/drivers/accel/amdxdna/amdxdna_mailbox_helper.c b/drivers/accel/amdxdna/amdxdna_mailbox_helper.c
index 42b615394605..5139a9c96a91 100644
--- a/drivers/accel/amdxdna/amdxdna_mailbox_helper.c
+++ b/drivers/accel/amdxdna/amdxdna_mailbox_helper.c
@@ -3,10 +3,15 @@
* Copyright (C) 2024, Advanced Micro Devices, Inc.
*/
+#include <drm/amdxdna_accel.h>
#include <drm/drm_device.h>
#include <drm/drm_print.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_gem_shmem_helper.h>
+#include <drm/gpu_scheduler.h>
#include <linux/completion.h>
+#include "amdxdna_gem.h"
#include "amdxdna_mailbox.h"
#include "amdxdna_mailbox_helper.h"
#include "amdxdna_pci_drv.h"
diff --git a/drivers/accel/amdxdna/amdxdna_pci_drv.c b/drivers/accel/amdxdna/amdxdna_pci_drv.c
index 172109cc9617..32a58bb6e6b1 100644
--- a/drivers/accel/amdxdna/amdxdna_pci_drv.c
+++ b/drivers/accel/amdxdna/amdxdna_pci_drv.c
@@ -10,6 +10,7 @@
#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_ioctl.h>
#include <drm/drm_managed.h>
+#include <drm/gpu_scheduler.h>
#include <linux/iommu.h>
#include <linux/pci.h>
@@ -64,6 +65,7 @@ static int amdxdna_drm_open(struct drm_device *ddev, struct drm_file *filp)
goto unbind_sva;
}
mutex_init(&client->hwctx_lock);
+ init_srcu_struct(&client->hwctx_srcu);
idr_init_base(&client->hwctx_idr, AMDXDNA_INVALID_CTX_HANDLE + 1);
mutex_init(&client->mm_lock);
@@ -93,6 +95,7 @@ static void amdxdna_drm_close(struct drm_device *ddev, struct drm_file *filp)
XDNA_DBG(xdna, "closing pid %d", client->pid);
idr_destroy(&client->hwctx_idr);
+ cleanup_srcu_struct(&client->hwctx_srcu);
mutex_destroy(&client->hwctx_lock);
mutex_destroy(&client->mm_lock);
if (client->dev_heap)
@@ -133,6 +136,8 @@ static const struct drm_ioctl_desc amdxdna_drm_ioctls[] = {
DRM_IOCTL_DEF_DRV(AMDXDNA_CREATE_BO, amdxdna_drm_create_bo_ioctl, 0),
DRM_IOCTL_DEF_DRV(AMDXDNA_GET_BO_INFO, amdxdna_drm_get_bo_info_ioctl, 0),
DRM_IOCTL_DEF_DRV(AMDXDNA_SYNC_BO, amdxdna_drm_sync_bo_ioctl, 0),
+ /* Execution */
+ DRM_IOCTL_DEF_DRV(AMDXDNA_EXEC_CMD, amdxdna_drm_submit_cmd_ioctl, 0),
};
static const struct file_operations amdxdna_fops = {
@@ -190,9 +195,16 @@ static int amdxdna_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return -ENODEV;
drmm_mutex_init(&xdna->ddev, &xdna->dev_lock);
+ rwlock_init(&xdna->notifier_lock);
INIT_LIST_HEAD(&xdna->client_list);
pci_set_drvdata(pdev, xdna);
+ if (IS_ENABLED(CONFIG_LOCKDEP)) {
+ fs_reclaim_acquire(GFP_KERNEL);
+ might_lock(&xdna->notifier_lock);
+ fs_reclaim_release(GFP_KERNEL);
+ }
+
mutex_lock(&xdna->dev_lock);
ret = xdna->dev_info->ops->init(xdna);
mutex_unlock(&xdna->dev_lock);
diff --git a/drivers/accel/amdxdna/amdxdna_pci_drv.h b/drivers/accel/amdxdna/amdxdna_pci_drv.h
index 3dddde4ac12a..ec22a074aac6 100644
--- a/drivers/accel/amdxdna/amdxdna_pci_drv.h
+++ b/drivers/accel/amdxdna/amdxdna_pci_drv.h
@@ -20,6 +20,7 @@ extern const struct drm_driver amdxdna_drm_drv;
struct amdxdna_dev;
struct amdxdna_gem_obj;
struct amdxdna_hwctx;
+struct amdxdna_sched_job;
/*
* struct amdxdna_dev_ops - Device hardware operation callbacks
@@ -31,6 +32,7 @@ struct amdxdna_dev_ops {
void (*hwctx_fini)(struct amdxdna_hwctx *hwctx);
int (*hwctx_config)(struct amdxdna_hwctx *hwctx, u32 type, u64 value, void *buf, u32 size);
void (*hmm_invalidate)(struct amdxdna_gem_obj *abo, unsigned long cur_seq);
+ int (*cmd_submit)(struct amdxdna_hwctx *hwctx, struct amdxdna_sched_job *job, u64 *seq);
};
/*
@@ -69,6 +71,7 @@ struct amdxdna_dev {
struct mutex dev_lock; /* per device lock */
struct list_head client_list;
struct amdxdna_fw_ver fw_ver;
+ rwlock_t notifier_lock; /* for mmu notifier*/
};
/*
@@ -88,6 +91,8 @@ struct amdxdna_client {
struct list_head node;
pid_t pid;
struct mutex hwctx_lock; /* protect hwctx */
+ /* do NOT wait this srcu when hwctx_lock is hold */
+ struct srcu_struct hwctx_srcu;
struct idr hwctx_idr;
struct amdxdna_dev *xdna;
struct drm_file *filp;
diff --git a/drivers/accel/amdxdna/amdxdna_sysfs.c b/drivers/accel/amdxdna/amdxdna_sysfs.c
index 668b94b92714..f27e4ee960a0 100644
--- a/drivers/accel/amdxdna/amdxdna_sysfs.c
+++ b/drivers/accel/amdxdna/amdxdna_sysfs.c
@@ -3,9 +3,14 @@
* Copyright (C) 2023-2024, Advanced Micro Devices, Inc.
*/
+#include <drm/amdxdna_accel.h>
#include <drm/drm_device.h>
+#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_print.h>
+#include <drm/gpu_scheduler.h>
+#include <linux/types.h>
+#include "amdxdna_gem.h"
#include "amdxdna_pci_drv.h"
static ssize_t vbnv_show(struct device *dev, struct device_attribute *attr, char *buf)
diff --git a/drivers/accel/amdxdna/npu1_regs.c b/drivers/accel/amdxdna/npu1_regs.c
index 720aab0ed7c4..f00c50461b09 100644
--- a/drivers/accel/amdxdna/npu1_regs.c
+++ b/drivers/accel/amdxdna/npu1_regs.c
@@ -5,6 +5,7 @@
#include <drm/amdxdna_accel.h>
#include <drm/drm_device.h>
+#include <drm/gpu_scheduler.h>
#include <linux/sizes.h>
#include "aie2_pci.h"
diff --git a/drivers/accel/amdxdna/npu2_regs.c b/drivers/accel/amdxdna/npu2_regs.c
index f3ea18bcf294..00cb381031d2 100644
--- a/drivers/accel/amdxdna/npu2_regs.c
+++ b/drivers/accel/amdxdna/npu2_regs.c
@@ -5,6 +5,7 @@
#include <drm/amdxdna_accel.h>
#include <drm/drm_device.h>
+#include <drm/gpu_scheduler.h>
#include <linux/sizes.h>
#include "aie2_pci.h"
diff --git a/drivers/accel/amdxdna/npu4_regs.c b/drivers/accel/amdxdna/npu4_regs.c
index db61142f0d4e..b6dae9667cca 100644
--- a/drivers/accel/amdxdna/npu4_regs.c
+++ b/drivers/accel/amdxdna/npu4_regs.c
@@ -5,6 +5,7 @@
#include <drm/amdxdna_accel.h>
#include <drm/drm_device.h>
+#include <drm/gpu_scheduler.h>
#include <linux/sizes.h>
#include "aie2_pci.h"
diff --git a/drivers/accel/amdxdna/npu5_regs.c b/drivers/accel/amdxdna/npu5_regs.c
index debf4e95b9bb..bed1baf8e160 100644
--- a/drivers/accel/amdxdna/npu5_regs.c
+++ b/drivers/accel/amdxdna/npu5_regs.c
@@ -5,6 +5,7 @@
#include <drm/amdxdna_accel.h>
#include <drm/drm_device.h>
+#include <drm/gpu_scheduler.h>
#include <linux/sizes.h>
#include "aie2_pci.h"
diff --git a/include/trace/events/amdxdna.h b/include/trace/events/amdxdna.h
index 33343d8f0622..c6cb2da7b706 100644
--- a/include/trace/events/amdxdna.h
+++ b/include/trace/events/amdxdna.h
@@ -9,8 +9,49 @@
#if !defined(_TRACE_AMDXDNA_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_AMDXDNA_H
+#include <drm/gpu_scheduler.h>
#include <linux/tracepoint.h>
+TRACE_EVENT(amdxdna_debug_point,
+ TP_PROTO(const char *name, u64 number, const char *str),
+
+ TP_ARGS(name, number, str),
+
+ TP_STRUCT__entry(__string(name, name)
+ __field(u64, number)
+ __string(str, str)),
+
+ TP_fast_assign(__assign_str(name);
+ __entry->number = number;
+ __assign_str(str);),
+
+ TP_printk("%s:%llu %s", __get_str(name), __entry->number,
+ __get_str(str))
+);
+
+TRACE_EVENT(xdna_job,
+ TP_PROTO(struct drm_sched_job *sched_job, const char *name, const char *str, u64 seq),
+
+ TP_ARGS(sched_job, name, str, seq),
+
+ TP_STRUCT__entry(__string(name, name)
+ __string(str, str)
+ __field(u64, fence_context)
+ __field(u64, fence_seqno)
+ __field(u64, seq)),
+
+ TP_fast_assign(__assign_str(name);
+ __assign_str(str);
+ __entry->fence_context = sched_job->s_fence->finished.context;
+ __entry->fence_seqno = sched_job->s_fence->finished.seqno;
+ __entry->seq = seq;),
+
+ TP_printk("fence=(context:%llu, seqno:%lld), %s seq#:%lld %s",
+ __entry->fence_context, __entry->fence_seqno,
+ __get_str(name), __entry->seq,
+ __get_str(str))
+);
+
DECLARE_EVENT_CLASS(xdna_mbox_msg,
TP_PROTO(char *name, u8 chann_id, u32 opcode, u32 msg_id),
diff --git a/include/uapi/drm/amdxdna_accel.h b/include/uapi/drm/amdxdna_accel.h
index e3e78b79a8e7..3e88ed386fac 100644
--- a/include/uapi/drm/amdxdna_accel.h
+++ b/include/uapi/drm/amdxdna_accel.h
@@ -13,9 +13,11 @@
extern "C" {
#endif
+#define AMDXDNA_INVALID_CMD_HANDLE (~0UL)
#define AMDXDNA_INVALID_ADDR (~0UL)
#define AMDXDNA_INVALID_CTX_HANDLE 0
#define AMDXDNA_INVALID_BO_HANDLE 0
+#define AMDXDNA_INVALID_FENCE_HANDLE 0
enum amdxdna_device_type {
AMDXDNA_DEV_TYPE_UNKNOWN = -1,
@@ -29,6 +31,7 @@ enum amdxdna_drm_ioctl_id {
DRM_AMDXDNA_CREATE_BO,
DRM_AMDXDNA_GET_BO_INFO,
DRM_AMDXDNA_SYNC_BO,
+ DRM_AMDXDNA_EXEC_CMD,
};
/**
@@ -201,6 +204,37 @@ struct amdxdna_drm_sync_bo {
__u64 size;
};
+enum amdxdna_cmd_type {
+ AMDXDNA_CMD_SUBMIT_EXEC_BUF = 0,
+ AMDXDNA_CMD_SUBMIT_DEPENDENCY,
+ AMDXDNA_CMD_SUBMIT_SIGNAL,
+};
+
+/**
+ * struct amdxdna_drm_exec_cmd - Execute command.
+ * @ext: MBZ.
+ * @ext_flags: MBZ.
+ * @hwctx: Hardware context handle.
+ * @type: One of command type in enum amdxdna_cmd_type.
+ * @cmd_handles: Array of command handles or the command handle itself
+ * in case of just one.
+ * @args: Array of arguments for all command handles.
+ * @cmd_count: Number of command handles in the cmd_handles array.
+ * @arg_count: Number of arguments in the args array.
+ * @seq: Returned sequence number for this command.
+ */
+struct amdxdna_drm_exec_cmd {
+ __u64 ext;
+ __u64 ext_flags;
+ __u32 hwctx;
+ __u32 type;
+ __u64 cmd_handles;
+ __u64 args;
+ __u32 cmd_count;
+ __u32 arg_count;
+ __u64 seq;
+};
+
#define DRM_IOCTL_AMDXDNA_CREATE_HWCTX \
DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDXDNA_CREATE_HWCTX, \
struct amdxdna_drm_create_hwctx)
@@ -225,6 +259,10 @@ struct amdxdna_drm_sync_bo {
DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDXDNA_SYNC_BO, \
struct amdxdna_drm_sync_bo)
+#define DRM_IOCTL_AMDXDNA_EXEC_CMD \
+ DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDXDNA_EXEC_CMD, \
+ struct amdxdna_drm_exec_cmd)
+
#if defined(__cplusplus)
} /* extern c end */
#endif
--
2.34.1
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