From b853007fdcdd64b49601a993c2b30c28279ae15d Mon Sep 17 00:00:00 2001 From: Lizhi Hou Date: Mon, 2 Feb 2026 13:24:50 -0800 Subject: [PATCH] accel/amdxdna: Remove hardware context status One newly supported command does not require hardware context configuration to be performed upfront. As a result, checking hardware context status causes this command to fail incorrectly. Remove hardware context status handling entirely. For other commands, if userspace submits a request without configuring the hardware context first, the firmware will report an error or time out as appropriate. Fixes: aac243092b70 ("accel/amdxdna: Add command execution") Reviewed-by: Mario Limonciello (AMD) Signed-off-by: Lizhi Hou Link: https://patch.msgid.link/20260202212450.2681273-1-lizhi.hou@amd.com --- drivers/accel/amdxdna/aie2_ctx.c | 25 ++----------------------- drivers/accel/amdxdna/aie2_message.c | 3 +++ drivers/accel/amdxdna/amdxdna_ctx.h | 5 ----- 3 files changed, 5 insertions(+), 28 deletions(-) diff --git a/drivers/accel/amdxdna/aie2_ctx.c b/drivers/accel/amdxdna/aie2_ctx.c index c4a58c00e442..ad5b5cd0bc81 100644 --- a/drivers/accel/amdxdna/aie2_ctx.c +++ b/drivers/accel/amdxdna/aie2_ctx.c @@ -47,17 +47,6 @@ static void aie2_job_put(struct amdxdna_sched_job *job) kref_put(&job->refcnt, aie2_job_release); } -static void aie2_hwctx_status_shift_stop(struct amdxdna_hwctx *hwctx) -{ - hwctx->old_status = hwctx->status; - hwctx->status = HWCTX_STAT_STOP; -} - -static void aie2_hwctx_status_restore(struct amdxdna_hwctx *hwctx) -{ - hwctx->status = hwctx->old_status; -} - /* 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) @@ -84,11 +73,6 @@ static int aie2_hwctx_restart(struct amdxdna_dev *xdna, struct amdxdna_hwctx *hw 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, NULL); if (ret) { XDNA_ERR(xdna, "Config cu failed, ret %d", ret); @@ -140,7 +124,6 @@ static int aie2_hwctx_suspend_cb(struct amdxdna_hwctx *hwctx, void *arg) aie2_hwctx_wait_for_idle(hwctx); aie2_hwctx_stop(xdna, hwctx, NULL); - aie2_hwctx_status_shift_stop(hwctx); return 0; } @@ -162,7 +145,6 @@ static int aie2_hwctx_resume_cb(struct amdxdna_hwctx *hwctx, void *arg) { struct amdxdna_dev *xdna = hwctx->client->xdna; - aie2_hwctx_status_restore(hwctx); return aie2_hwctx_restart(xdna, hwctx); } @@ -315,7 +297,7 @@ aie2_sched_job_run(struct drm_sched_job *sched_job) struct dma_fence *fence; int ret; - if (hwctx->status != HWCTX_STAT_READY) + if (!hwctx->priv->mbox_chann) return NULL; if (!mmget_not_zero(job->mm)) @@ -666,7 +648,6 @@ int aie2_hwctx_init(struct amdxdna_hwctx *hwctx) } amdxdna_pm_suspend_put(xdna); - hwctx->status = HWCTX_STAT_INIT; init_waitqueue_head(&priv->job_free_wq); XDNA_DBG(xdna, "hwctx %s init completed", hwctx->name); @@ -710,7 +691,6 @@ void aie2_hwctx_fini(struct amdxdna_hwctx *hwctx) /* Request fw to destroy hwctx and cancel the rest pending requests */ drm_sched_stop(&hwctx->priv->sched, NULL); aie2_release_resource(hwctx); - hwctx->status = HWCTX_STAT_STOP; drm_sched_start(&hwctx->priv->sched, 0); mutex_unlock(&xdna->dev_lock); @@ -755,7 +735,7 @@ static int aie2_hwctx_cu_config(struct amdxdna_hwctx *hwctx, void *buf, u32 size if (XDNA_MBZ_DBG(xdna, config->pad, sizeof(config->pad))) return -EINVAL; - if (hwctx->status != HWCTX_STAT_INIT) { + if (hwctx->cus) { XDNA_ERR(xdna, "Not support re-config CU"); return -EINVAL; } @@ -786,7 +766,6 @@ static int aie2_hwctx_cu_config(struct amdxdna_hwctx *hwctx, void *buf, u32 size } wmb(); /* To avoid locking in command submit when check status */ - hwctx->status = HWCTX_STAT_READY; return 0; diff --git a/drivers/accel/amdxdna/aie2_message.c b/drivers/accel/amdxdna/aie2_message.c index 99215328505e..7d7dcfeaf794 100644 --- a/drivers/accel/amdxdna/aie2_message.c +++ b/drivers/accel/amdxdna/aie2_message.c @@ -493,6 +493,9 @@ int aie2_config_cu(struct amdxdna_hwctx *hwctx, if (!chann) return -ENODEV; + if (!hwctx->cus) + return 0; + if (hwctx->cus->num_cus > MAX_NUM_CUS) { XDNA_DBG(xdna, "Exceed maximum CU %d", MAX_NUM_CUS); return -EINVAL; diff --git a/drivers/accel/amdxdna/amdxdna_ctx.h b/drivers/accel/amdxdna/amdxdna_ctx.h index b29449a92f60..16c85f08f03c 100644 --- a/drivers/accel/amdxdna/amdxdna_ctx.h +++ b/drivers/accel/amdxdna/amdxdna_ctx.h @@ -99,11 +99,6 @@ struct amdxdna_hwctx { u32 start_col; u32 num_col; u32 num_unused_col; -#define HWCTX_STAT_INIT 0 -#define HWCTX_STAT_READY 1 -#define HWCTX_STAT_STOP 2 - u32 status; - u32 old_status; struct amdxdna_qos_info qos; struct amdxdna_hwctx_param_config_cu *cus; -- 2.47.3