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/ttm/ttm_agp_backend.c | 54 +++++++++++++++++++++++++-----------------------------
1 files changed, 25 insertions(+), 29 deletions(-)
diff --git a/kernel/drivers/gpu/drm/ttm/ttm_agp_backend.c b/kernel/drivers/gpu/drm/ttm/ttm_agp_backend.c
index ea4d59e..a98fd79 100644
--- a/kernel/drivers/gpu/drm/ttm/ttm_agp_backend.c
+++ b/kernel/drivers/gpu/drm/ttm/ttm_agp_backend.c
@@ -48,14 +48,17 @@
struct agp_bridge_data *bridge;
};
-static int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
+int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_resource *bo_mem)
{
struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
- struct page *dummy_read_page = ttm->bdev->glob->dummy_read_page;
+ struct page *dummy_read_page = ttm_bo_glob.dummy_read_page;
struct drm_mm_node *node = bo_mem->mm_node;
struct agp_memory *mem;
int ret, cached = (bo_mem->placement & TTM_PL_FLAG_CACHED);
unsigned i;
+
+ if (agp_be->mem)
+ return 0;
mem = agp_allocate_memory(agp_be->bridge, ttm->num_pages, AGP_USER_MEMORY);
if (unlikely(mem == NULL))
@@ -81,21 +84,35 @@
return ret;
}
+EXPORT_SYMBOL(ttm_agp_bind);
-static int ttm_agp_unbind(struct ttm_tt *ttm)
+void ttm_agp_unbind(struct ttm_tt *ttm)
{
struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
if (agp_be->mem) {
- if (agp_be->mem->is_bound)
- return agp_unbind_memory(agp_be->mem);
+ if (agp_be->mem->is_bound) {
+ agp_unbind_memory(agp_be->mem);
+ return;
+ }
agp_free_memory(agp_be->mem);
agp_be->mem = NULL;
}
- return 0;
}
+EXPORT_SYMBOL(ttm_agp_unbind);
-static void ttm_agp_destroy(struct ttm_tt *ttm)
+bool ttm_agp_is_bound(struct ttm_tt *ttm)
+{
+ struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
+
+ if (!ttm)
+ return false;
+
+ return (agp_be->mem != NULL);
+}
+EXPORT_SYMBOL(ttm_agp_is_bound);
+
+void ttm_agp_destroy(struct ttm_tt *ttm)
{
struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
@@ -104,12 +121,7 @@
ttm_tt_fini(ttm);
kfree(agp_be);
}
-
-static struct ttm_backend_func ttm_agp_func = {
- .bind = ttm_agp_bind,
- .unbind = ttm_agp_unbind,
- .destroy = ttm_agp_destroy,
-};
+EXPORT_SYMBOL(ttm_agp_destroy);
struct ttm_tt *ttm_agp_tt_create(struct ttm_buffer_object *bo,
struct agp_bridge_data *bridge,
@@ -123,7 +135,6 @@
agp_be->mem = NULL;
agp_be->bridge = bridge;
- agp_be->ttm.func = &ttm_agp_func;
if (ttm_tt_init(&agp_be->ttm, bo, page_flags)) {
kfree(agp_be);
@@ -133,18 +144,3 @@
return &agp_be->ttm;
}
EXPORT_SYMBOL(ttm_agp_tt_create);
-
-int ttm_agp_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
-{
- if (ttm->state != tt_unpopulated)
- return 0;
-
- return ttm_pool_populate(ttm, ctx);
-}
-EXPORT_SYMBOL(ttm_agp_tt_populate);
-
-void ttm_agp_tt_unpopulate(struct ttm_tt *ttm)
-{
- ttm_pool_unpopulate(ttm);
-}
-EXPORT_SYMBOL(ttm_agp_tt_unpopulate);
--
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