From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/gpu/drm/msm/adreno/a5xx_preempt.c | 79 ++++++++++++++++++++-------------------
1 files changed, 41 insertions(+), 38 deletions(-)
diff --git a/kernel/drivers/gpu/drm/msm/adreno/a5xx_preempt.c b/kernel/drivers/gpu/drm/msm/adreno/a5xx_preempt.c
index 970c796..b8e71ad 100644
--- a/kernel/drivers/gpu/drm/msm/adreno/a5xx_preempt.c
+++ b/kernel/drivers/gpu/drm/msm/adreno/a5xx_preempt.c
@@ -1,14 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2017 The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
*/
#include "msm_gem.h"
@@ -54,9 +45,9 @@
if (!ring)
return;
- spin_lock_irqsave(&ring->lock, flags);
+ spin_lock_irqsave(&ring->preempt_lock, flags);
wptr = get_wptr(ring);
- spin_unlock_irqrestore(&ring->lock, flags);
+ spin_unlock_irqrestore(&ring->preempt_lock, flags);
gpu_write(gpu, REG_A5XX_CP_RB_WPTR, wptr);
}
@@ -71,9 +62,9 @@
bool empty;
struct msm_ringbuffer *ring = gpu->rb[i];
- spin_lock_irqsave(&ring->lock, flags);
- empty = (get_wptr(ring) == ring->memptrs->rptr);
- spin_unlock_irqrestore(&ring->lock, flags);
+ spin_lock_irqsave(&ring->preempt_lock, flags);
+ empty = (get_wptr(ring) == gpu->funcs->get_rptr(gpu, ring));
+ spin_unlock_irqrestore(&ring->preempt_lock, flags);
if (!empty)
return ring;
@@ -92,7 +83,7 @@
if (!try_preempt_state(a5xx_gpu, PREEMPT_TRIGGERED, PREEMPT_FAULTED))
return;
- dev_err(dev->dev, "%s: preemption timed out\n", gpu->name);
+ DRM_DEV_ERROR(dev->dev, "%s: preemption timed out\n", gpu->name);
queue_work(priv->wq, &gpu->recover_work);
}
@@ -141,9 +132,9 @@
}
/* Make sure the wptr doesn't update while we're in motion */
- spin_lock_irqsave(&ring->lock, flags);
+ spin_lock_irqsave(&ring->preempt_lock, flags);
a5xx_gpu->preempt[ring->id]->wptr = get_wptr(ring);
- spin_unlock_irqrestore(&ring->lock, flags);
+ spin_unlock_irqrestore(&ring->preempt_lock, flags);
/* Set the address of the incoming preemption record */
gpu_write64(gpu, REG_A5XX_CP_CONTEXT_SWITCH_RESTORE_ADDR_LO,
@@ -188,7 +179,7 @@
status = gpu_read(gpu, REG_A5XX_CP_CONTEXT_SWITCH_CNTL);
if (unlikely(status)) {
set_preempt_state(a5xx_gpu, PREEMPT_FAULTED);
- dev_err(dev->dev, "%s: Preemption failed to complete\n",
+ DRM_DEV_ERROR(dev->dev, "%s: Preemption failed to complete\n",
gpu->name);
queue_work(priv->wq, &gpu->recover_work);
return;
@@ -208,10 +199,18 @@
struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu);
int i;
+ /* Always come up on rb 0 */
+ a5xx_gpu->cur_ring = gpu->rb[0];
+
+ /* No preemption if we only have one ring */
+ if (gpu->nr_rings == 1)
+ return;
+
for (i = 0; i < gpu->nr_rings; i++) {
a5xx_gpu->preempt[i]->wptr = 0;
a5xx_gpu->preempt[i]->rptr = 0;
a5xx_gpu->preempt[i]->rbase = gpu->rb[i]->iova;
+ a5xx_gpu->preempt[i]->rptr_addr = shadowptr(a5xx_gpu, gpu->rb[i]);
}
/* Write a 0 to signal that we aren't switching pagetables */
@@ -220,9 +219,6 @@
/* Reset the preemption state */
set_preempt_state(a5xx_gpu, PREEMPT_NONE);
-
- /* Always come up on rb 0 */
- a5xx_gpu->cur_ring = gpu->rb[0];
}
static int preempt_init_ring(struct a5xx_gpu *a5xx_gpu,
@@ -231,17 +227,31 @@
struct adreno_gpu *adreno_gpu = &a5xx_gpu->base;
struct msm_gpu *gpu = &adreno_gpu->base;
struct a5xx_preempt_record *ptr;
- struct drm_gem_object *bo = NULL;
- u64 iova = 0;
+ void *counters;
+ struct drm_gem_object *bo = NULL, *counters_bo = NULL;
+ u64 iova = 0, counters_iova = 0;
ptr = msm_gem_kernel_new(gpu->dev,
A5XX_PREEMPT_RECORD_SIZE + A5XX_PREEMPT_COUNTER_SIZE,
- MSM_BO_UNCACHED, gpu->aspace, &bo, &iova);
+ MSM_BO_UNCACHED | MSM_BO_MAP_PRIV, gpu->aspace, &bo, &iova);
if (IS_ERR(ptr))
return PTR_ERR(ptr);
+ /* The buffer to store counters needs to be unprivileged */
+ counters = msm_gem_kernel_new(gpu->dev,
+ A5XX_PREEMPT_COUNTER_SIZE,
+ MSM_BO_UNCACHED, gpu->aspace, &counters_bo, &counters_iova);
+ if (IS_ERR(counters)) {
+ msm_gem_kernel_put(bo, gpu->aspace, true);
+ return PTR_ERR(counters);
+ }
+
+ msm_gem_object_set_name(bo, "preempt");
+ msm_gem_object_set_name(counters_bo, "preempt_counters");
+
a5xx_gpu->preempt_bo[ring->id] = bo;
+ a5xx_gpu->preempt_counters_bo[ring->id] = counters_bo;
a5xx_gpu->preempt_iova[ring->id] = iova;
a5xx_gpu->preempt[ring->id] = ptr;
@@ -250,9 +260,9 @@
ptr->magic = A5XX_PREEMPT_RECORD_MAGIC;
ptr->info = 0;
ptr->data = 0;
- ptr->cntl = MSM_GPU_RB_CNTL_DEFAULT;
- ptr->rptr_addr = rbmemptr(ring, rptr);
- ptr->counter = iova + A5XX_PREEMPT_RECORD_SIZE;
+ ptr->cntl = MSM_GPU_RB_CNTL_DEFAULT | AXXX_CP_RB_CNTL_NO_UPDATE;
+
+ ptr->counter = counters_iova;
return 0;
}
@@ -264,16 +274,9 @@
int i;
for (i = 0; i < gpu->nr_rings; i++) {
- if (!a5xx_gpu->preempt_bo[i])
- continue;
-
- msm_gem_put_vaddr(a5xx_gpu->preempt_bo[i]);
-
- if (a5xx_gpu->preempt_iova[i])
- msm_gem_put_iova(a5xx_gpu->preempt_bo[i], gpu->aspace);
-
- drm_gem_object_unreference(a5xx_gpu->preempt_bo[i]);
- a5xx_gpu->preempt_bo[i] = NULL;
+ msm_gem_kernel_put(a5xx_gpu->preempt_bo[i], gpu->aspace, true);
+ msm_gem_kernel_put(a5xx_gpu->preempt_counters_bo[i],
+ gpu->aspace, true);
}
}
--
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