Re: [PATCH v10 07/11] drm/etnaviv: Add support for the dma coherent device
From: Sui Jingfeng
Date: Wed Jun 21 2023 - 10:45:56 EST
On 2023/6/21 18:00, Lucas Stach wrote:
/* list of GEM objects: */
struct mutex gem_lock;
struct list_head gem_list;
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index b5f73502e3dd..39bdc3774f2d 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -343,6 +343,7 @@ void *etnaviv_gem_vmap(struct drm_gem_object *obj)
static void *etnaviv_gem_vmap_impl(struct etnaviv_gem_object *obj)
{
struct page **pages;
+ pgprot_t prot;
lockdep_assert_held(&obj->lock);
@@ -350,8 +351,19 @@ static void *etnaviv_gem_vmap_impl(struct etnaviv_gem_object *obj)
if (IS_ERR(pages))
return NULL;
- return vmap(pages, obj->base.size >> PAGE_SHIFT,
- VM_MAP, pgprot_writecombine(PAGE_KERNEL));
+ switch (obj->flags) {
switch (obj->flags & ETNA_BO_CACHE_MASK)
This is certainly OK, acceptable!
--
Jingfeng