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/xen/xen_drm_front_gem.c | 51 ++++++++++++++++++++++-----------------------------
1 files changed, 22 insertions(+), 29 deletions(-)
diff --git a/kernel/drivers/gpu/drm/xen/xen_drm_front_gem.c b/kernel/drivers/gpu/drm/xen/xen_drm_front_gem.c
index cba7852..2f464ef 100644
--- a/kernel/drivers/gpu/drm/xen/xen_drm_front_gem.c
+++ b/kernel/drivers/gpu/drm/xen/xen_drm_front_gem.c
@@ -8,21 +8,20 @@
* Author: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
*/
-#include "xen_drm_front_gem.h"
-
-#include <drm/drmP.h>
-#include <drm/drm_crtc_helper.h>
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_gem.h>
-
#include <linux/dma-buf.h>
#include <linux/scatterlist.h>
#include <linux/shmem_fs.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_prime.h>
+#include <drm/drm_probe_helper.h>
+
#include <xen/balloon.h>
+#include <xen/xen.h>
#include "xen_drm_front.h"
-#include "xen_drm_front_shbuf.h"
+#include "xen_drm_front_gem.h"
struct xen_gem_object {
struct drm_gem_object base;
@@ -101,8 +100,8 @@
* allocate ballooned pages which will be used to map
* grant references provided by the backend
*/
- ret = alloc_xenballooned_pages(xen_obj->num_pages,
- xen_obj->pages);
+ ret = xen_alloc_unpopulated_pages(xen_obj->num_pages,
+ xen_obj->pages);
if (ret < 0) {
DRM_ERROR("Cannot allocate %zu ballooned pages: %d\n",
xen_obj->num_pages, ret);
@@ -154,8 +153,8 @@
} else {
if (xen_obj->pages) {
if (xen_obj->be_alloc) {
- free_xenballooned_pages(xen_obj->num_pages,
- xen_obj->pages);
+ xen_free_unpopulated_pages(xen_obj->num_pages,
+ xen_obj->pages);
gem_free_pages_array(xen_obj);
} else {
drm_gem_put_pages(&xen_obj->base,
@@ -179,9 +178,10 @@
struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj);
if (!xen_obj->pages)
- return NULL;
+ return ERR_PTR(-ENOMEM);
- return drm_prime_pages_to_sg(xen_obj->pages, xen_obj->num_pages);
+ return drm_prime_pages_to_sg(gem_obj->dev,
+ xen_obj->pages, xen_obj->num_pages);
}
struct drm_gem_object *
@@ -212,12 +212,13 @@
ret = xen_drm_front_dbuf_create(drm_info->front_info,
xen_drm_front_dbuf_to_cookie(&xen_obj->base),
- 0, 0, 0, size, xen_obj->pages);
+ 0, 0, 0, size, sgt->sgl->offset,
+ xen_obj->pages);
if (ret < 0)
return ERR_PTR(ret);
DRM_DEBUG("Imported buffer of size %zu with nents %u\n",
- size, sgt->nents);
+ size, sgt->orig_nents);
return &xen_obj->base;
}
@@ -225,8 +226,7 @@
static int gem_mmap_obj(struct xen_gem_object *xen_obj,
struct vm_area_struct *vma)
{
- unsigned long addr = vma->vm_start;
- int i;
+ int ret;
/*
* clear the VM_PFNMAP flag that was set by drm_gem_mmap(), and set the
@@ -253,18 +253,11 @@
* FIXME: as we insert all the pages now then no .fault handler must
* be called, so don't provide one
*/
- for (i = 0; i < xen_obj->num_pages; i++) {
- int ret;
+ ret = vm_map_pages(vma, xen_obj->pages, xen_obj->num_pages);
+ if (ret < 0)
+ DRM_ERROR("Failed to map pages into vma: %d\n", ret);
- ret = vm_insert_page(vma, addr, xen_obj->pages[i]);
- if (ret < 0) {
- DRM_ERROR("Failed to insert pages into vma: %d\n", ret);
- return ret;
- }
-
- addr += PAGE_SIZE;
- }
- return 0;
+ return ret;
}
int xen_drm_front_gem_mmap(struct file *filp, struct vm_area_struct *vma)
--
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