add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/drivers/base/firmware_loader/firmware.h
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@@ -27,16 +27,23 @@
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  *	firmware file lookup on storage is avoided. Used for calls where the
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  *	file may be too big, or where the driver takes charge of its own
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  *	firmware caching mechanism.
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- * @FW_OPT_NOFALLBACK: Disable the fallback mechanism. Takes precedence over
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- *	&FW_OPT_UEVENT and &FW_OPT_USERHELPER.
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+ * @FW_OPT_NOFALLBACK_SYSFS: Disable the sysfs fallback mechanism. Takes
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+ *	precedence over &FW_OPT_UEVENT and &FW_OPT_USERHELPER.
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+ * @FW_OPT_FALLBACK_PLATFORM: Enable fallback to device fw copy embedded in
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+ *	the platform's main firmware. If both this fallback and the sysfs
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+ *      fallback are enabled, then this fallback will be tried first.
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+ * @FW_OPT_PARTIAL: Allow partial read of firmware instead of needing to read
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+ *	entire file.
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  */
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 enum fw_opt {
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-	FW_OPT_UEVENT =         BIT(0),
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-	FW_OPT_NOWAIT =         BIT(1),
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-	FW_OPT_USERHELPER =     BIT(2),
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-	FW_OPT_NO_WARN =        BIT(3),
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-	FW_OPT_NOCACHE =        BIT(4),
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-	FW_OPT_NOFALLBACK =     BIT(5),
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+	FW_OPT_UEVENT			= BIT(0),
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+	FW_OPT_NOWAIT			= BIT(1),
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+	FW_OPT_USERHELPER		= BIT(2),
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+	FW_OPT_NO_WARN			= BIT(3),
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+	FW_OPT_NOCACHE			= BIT(4),
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+	FW_OPT_NOFALLBACK_SYSFS		= BIT(5),
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+	FW_OPT_FALLBACK_PLATFORM	= BIT(6),
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+	FW_OPT_PARTIAL			= BIT(7),
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 };
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 enum fw_status {
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@@ -64,12 +71,16 @@
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 	void *data;
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 	size_t size;
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 	size_t allocated_size;
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-#ifdef CONFIG_FW_LOADER_USER_HELPER
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+	size_t offset;
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+	u32 opt_flags;
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+#ifdef CONFIG_FW_LOADER_PAGED_BUF
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 	bool is_paged_buf;
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-	bool need_uevent;
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 	struct page **pages;
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 	int nr_pages;
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 	int page_array_size;
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+#endif
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+#ifdef CONFIG_FW_LOADER_USER_HELPER
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+	bool need_uevent;
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 	struct list_head pending_list;
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 #endif
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 	const char *fw_name;
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@@ -138,7 +149,18 @@
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 	__fw_state_set(fw_priv, FW_STATUS_DONE);
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 }
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-int assign_fw(struct firmware *fw, struct device *device,
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-	      enum fw_opt opt_flags);
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+int assign_fw(struct firmware *fw, struct device *device);
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+
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+#ifdef CONFIG_FW_LOADER_PAGED_BUF
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+void fw_free_paged_buf(struct fw_priv *fw_priv);
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+int fw_grow_paged_buf(struct fw_priv *fw_priv, int pages_needed);
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+int fw_map_paged_buf(struct fw_priv *fw_priv);
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+bool fw_is_paged_buf(struct fw_priv *fw_priv);
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+#else
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+static inline void fw_free_paged_buf(struct fw_priv *fw_priv) {}
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+static inline int fw_grow_paged_buf(struct fw_priv *fw_priv, int pages_needed) { return -ENXIO; }
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+static inline int fw_map_paged_buf(struct fw_priv *fw_priv) { return -ENXIO; }
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+static inline bool fw_is_paged_buf(struct fw_priv *fw_priv) { return false; }
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+#endif
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 #endif /* __FIRMWARE_LOADER_H */