sm8750: init kernel modules repo

qcom/opensource/graphics-kernel/kgsl_pool.h

@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2016-2017,2019,2021 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+#ifndef __KGSL_POOL_H
+#define __KGSL_POOL_H
+
+#ifdef CONFIG_QCOM_KGSL_USE_SHMEM
+static inline void kgsl_probe_page_pools(void) { }
+static inline void kgsl_exit_page_pools(void) { }
+
+static inline u32 kgsl_get_page_size(size_t size, unsigned int align)
+{
+	u32 page_size;
+
+	if (!size)
+		return 0;
+
+	for (page_size = rounddown_pow_of_two(size); page_size > PAGE_SIZE; page_size >>= 1)
+		if ((align >= ilog2(page_size)) && (size >= page_size))
+			return page_size;
+
+	return PAGE_SIZE;
+}
+
+static inline int kgsl_pool_page_count_get(void *data, u64 *val)
+{
+	return 0;
+}
+
+static inline int kgsl_pool_reserved_get(void *data, u64 *val)
+{
+	return 0;
+}
+
+static inline int kgsl_pool_size_total(void)
+{
+	return 0;
+}
+#else
+/**
+ * kgsl_pool_free_page - Frees the page and adds it back to pool/system memory
+ * @page: Pointer to page struct that needs to be freed
+ */
+void kgsl_pool_free_page(struct page *page);
+
+/**
+ * kgsl_get_page_size - Get supported pagesize
+ * @size: Size of the page
+ * @align: Desired alignment of the size
+ *
+ * Return largest available page size from pools that can be used to meet
+ * given size and alignment requirements
+ */
+u32 kgsl_get_page_size(size_t size, unsigned int align);
+
+/**
+ * kgsl_pool_alloc_page - Allocate a page of requested size
+ * @page_size: Size of the page to be allocated
+ * @pages: pointer to hold list of pages, should be big enough to hold
+ * requested page
+ * @len: Length of array pages
+ *
+ * Return total page count on success and negative value on failure
+ */
+int kgsl_pool_alloc_page(int *page_size, struct page **pages,
+			unsigned int pages_len, unsigned int *align,
+			struct device *dev);
+
+/**
+ * kgsl_pool_free_pages - Free pages in an pages array
+ * @pages: pointer to an array of page structs
+ * @page_count: Number of entries in @pages
+ *
+ * Free the pages by collapsing any physical adjacent pages.
+ * Pages are added back to the pool, if pool has sufficient space
+ * otherwise they are given back to system.
+ */
+void kgsl_pool_free_pages(struct page **pages, unsigned int page_count);
+
+/* Debugfs node functions */
+int kgsl_pool_reserved_get(void *data, u64 *val);
+int kgsl_pool_page_count_get(void *data, u64 *val);
+
+/**
+ * kgsl_pool_size_total - Return the number of pages in all kgsl page pools
+ */
+int kgsl_pool_size_total(void);
+
+/**
+ * kgsl_probe_page_pools - Initialize the memory pools
+ */
+void kgsl_probe_page_pools(void);
+
+/**
+ * kgsl_exit_page_pools - Free outstanding pooled memory
+ */
+void kgsl_exit_page_pools(void);
+
+#endif
+#endif /* __KGSL_POOL_H */
+