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/armada/armada_gem.c | 69 ++++++++++++++--------------------
1 files changed, 28 insertions(+), 41 deletions(-)
diff --git a/kernel/drivers/gpu/drm/armada/armada_gem.c b/kernel/drivers/gpu/drm/armada/armada_gem.c
index 892c1d9..6654bcc 100644
--- a/kernel/drivers/gpu/drm/armada/armada_gem.c
+++ b/kernel/drivers/gpu/drm/armada/armada_gem.c
@@ -1,16 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2012 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
+
#include <linux/dma-buf.h>
#include <linux/dma-mapping.h>
+#include <linux/mman.h>
#include <linux/shmem_fs.h>
+
+#include <drm/armada_drm.h>
+#include <drm/drm_prime.h>
+
#include "armada_drm.h"
#include "armada_gem.h"
-#include <drm/armada_drm.h>
#include "armada_ioctlP.h"
static vm_fault_t armada_gem_vm_fault(struct vm_fault *vmf)
@@ -37,7 +39,7 @@
void armada_gem_free_object(struct drm_gem_object *obj)
{
struct armada_gem_object *dobj = drm_to_armada_gem(obj);
- struct armada_private *priv = obj->dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(obj->dev);
DRM_DEBUG_DRIVER("release obj %p\n", dobj);
@@ -75,7 +77,7 @@
int
armada_gem_linear_back(struct drm_device *dev, struct armada_gem_object *obj)
{
- struct armada_private *priv = dev->dev_private;
+ struct armada_private *priv = drm_to_armada_dev(dev);
size_t size = obj->obj.size;
if (obj->page || obj->linear)
@@ -254,7 +256,7 @@
/* drop reference from allocate - handle holds it now */
DRM_DEBUG_DRIVER("obj %p size %zu handle %#x\n", dobj, size, handle);
err:
- drm_gem_object_put_unlocked(&dobj->obj);
+ drm_gem_object_put(&dobj->obj);
return ret;
}
@@ -286,7 +288,7 @@
/* drop reference from allocate - handle holds it now */
DRM_DEBUG_DRIVER("obj %p size %zu handle %#x\n", dobj, size, handle);
err:
- drm_gem_object_put_unlocked(&dobj->obj);
+ drm_gem_object_put(&dobj->obj);
return ret;
}
@@ -303,13 +305,13 @@
return -ENOENT;
if (!dobj->obj.filp) {
- drm_gem_object_put_unlocked(&dobj->obj);
+ drm_gem_object_put(&dobj->obj);
return -EINVAL;
}
addr = vm_mmap(dobj->obj.filp, 0, args->size, PROT_READ | PROT_WRITE,
MAP_SHARED, args->offset);
- drm_gem_object_put_unlocked(&dobj->obj);
+ drm_gem_object_put(&dobj->obj);
if (IS_ERR_VALUE(addr))
return addr;
@@ -334,7 +336,7 @@
ptr = (char __user *)(uintptr_t)args->ptr;
- if (!access_ok(VERIFY_READ, ptr, args->size))
+ if (!access_ok(ptr, args->size))
return -EFAULT;
ret = fault_in_pages_readable(ptr, args->size);
@@ -364,7 +366,7 @@
}
unref:
- drm_gem_object_put_unlocked(&dobj->obj);
+ drm_gem_object_put(&dobj->obj);
return ret;
}
@@ -377,7 +379,7 @@
struct armada_gem_object *dobj = drm_to_armada_gem(obj);
struct scatterlist *sg;
struct sg_table *sgt;
- int i, num;
+ int i;
sgt = kmalloc(sizeof(*sgt), GFP_KERNEL);
if (!sgt)
@@ -393,22 +395,18 @@
mapping = dobj->obj.filp->f_mapping;
- for_each_sg(sgt->sgl, sg, count, i) {
+ for_each_sgtable_sg(sgt, sg, i) {
struct page *page;
page = shmem_read_mapping_page(mapping, i);
- if (IS_ERR(page)) {
- num = i;
+ if (IS_ERR(page))
goto release;
- }
sg_set_page(sg, page, PAGE_SIZE, 0);
}
- if (dma_map_sg(attach->dev, sgt->sgl, sgt->nents, dir) == 0) {
- num = sgt->nents;
+ if (dma_map_sgtable(attach->dev, sgt, dir, 0))
goto release;
- }
} else if (dobj->page) {
/* Single contiguous page */
if (sg_alloc_table(sgt, 1, GFP_KERNEL))
@@ -416,7 +414,7 @@
sg_set_page(sgt->sgl, dobj->page, dobj->obj.size, 0);
- if (dma_map_sg(attach->dev, sgt->sgl, sgt->nents, dir) == 0)
+ if (dma_map_sgtable(attach->dev, sgt, dir, 0))
goto free_table;
} else if (dobj->linear) {
/* Single contiguous physical region - no struct page */
@@ -430,8 +428,9 @@
return sgt;
release:
- for_each_sg(sgt->sgl, sg, num, i)
- put_page(sg_page(sg));
+ for_each_sgtable_sg(sgt, sg, i)
+ if (sg_page(sg))
+ put_page(sg_page(sg));
free_table:
sg_free_table(sgt);
free_sgt:
@@ -447,26 +446,17 @@
int i;
if (!dobj->linear)
- dma_unmap_sg(attach->dev, sgt->sgl, sgt->nents, dir);
+ dma_unmap_sgtable(attach->dev, sgt, dir, 0);
if (dobj->obj.filp) {
struct scatterlist *sg;
- for_each_sg(sgt->sgl, sg, sgt->nents, i)
+
+ for_each_sgtable_sg(sgt, sg, i)
put_page(sg_page(sg));
}
sg_free_table(sgt);
kfree(sgt);
-}
-
-static void *armada_gem_dmabuf_no_kmap(struct dma_buf *buf, unsigned long n)
-{
- return NULL;
-}
-
-static void
-armada_gem_dmabuf_no_kunmap(struct dma_buf *buf, unsigned long n, void *addr)
-{
}
static int
@@ -479,14 +469,11 @@
.map_dma_buf = armada_gem_prime_map_dma_buf,
.unmap_dma_buf = armada_gem_prime_unmap_dma_buf,
.release = drm_gem_dmabuf_release,
- .map = armada_gem_dmabuf_no_kmap,
- .unmap = armada_gem_dmabuf_no_kunmap,
.mmap = armada_gem_dmabuf_mmap,
};
struct dma_buf *
-armada_gem_prime_export(struct drm_device *dev, struct drm_gem_object *obj,
- int flags)
+armada_gem_prime_export(struct drm_gem_object *obj, int flags)
{
DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
@@ -495,7 +482,7 @@
exp_info.flags = O_RDWR;
exp_info.priv = obj;
- return drm_gem_dmabuf_export(dev, &exp_info);
+ return drm_gem_dmabuf_export(obj->dev, &exp_info);
}
struct drm_gem_object *
--
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