x86: Avoid #ifdef with CONFIG_HAVE_ACPI_RESUME

At present this enables a few arch-specific members of the global_data
struct which are otherwise not part of the struct. As a result we have to
use #ifdef in various places.

The cost of always having these in the struct is small. Adjust things so
that we can use compile-time code instead of #ifdefs.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

arch/x86/cpu/apollolake/cpu_spl.c

@@ -247,12 +247,13 @@ static int arch_cpu_init_spl(void)
 	ret = pmc_init(pmc);
 	if (ret < 0)
 		return log_msg_ret("Could not init PMC", ret);
-#ifdef CONFIG_HAVE_ACPI_RESUME
-	ret = pmc_prev_sleep_state(pmc);
-	if (ret < 0)
-		return log_msg_ret("Could not get PMC sleep state", ret);
-	gd->arch.prev_sleep_state = ret;
-#endif
+	if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)) {
+		ret = pmc_prev_sleep_state(pmc);
+		if (ret < 0)
+			return log_msg_ret("Could not get PMC sleep state",
+					   ret);
+		gd->arch.prev_sleep_state = ret;
+	}
 
 	return 0;
 }

arch/x86/cpu/apollolake/fsp_s.c

@@ -192,16 +192,16 @@ int arch_fsps_preinit(void)
 
 int arch_fsp_init_r(void)
 {
-#ifdef CONFIG_HAVE_ACPI_RESUME
-	bool s3wake = gd->arch.prev_sleep_state == ACPI_S3;
-#else
-	bool s3wake = false;
-#endif
+	bool s3wake;
 	struct udevice *dev, *itss;
 	int ret;
 
 	if (!ll_boot_init())
 		return 0;
+
+	s3wake = IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) &&
+		gd->arch.prev_sleep_state == ACPI_S3;
+
 	/*
 	 * This must be called before any devices are probed. Put any probing
 	 * into arch_fsps_preinit() above.

arch/x86/cpu/baytrail/acpi.c

@@ -161,7 +161,6 @@ void acpi_create_gnvs(struct acpi_global_nvs *gnvs)
 		gnvs->iuart_en = 0;
 }
 
-#ifdef CONFIG_HAVE_ACPI_RESUME
 /*
  * The following two routines are called at a very early stage, even before
  * FSP 2nd phase API fsp_init() is called. Registers off ACPI_BASE_ADDRESS
@@ -204,4 +203,3 @@ void chipset_clear_sleep_state(void)
 	pm1_cnt = inl(ACPI_BASE_ADDRESS + PM1_CNT);
 	outl(pm1_cnt & ~(SLP_TYP), ACPI_BASE_ADDRESS + PM1_CNT);
 }
-#endif

arch/x86/cpu/broadwell/power_state.c

@@ -23,11 +23,10 @@ static int prev_sleep_state(struct chipset_power_state *ps)
 
 	if (ps->pm1_sts & WAK_STS) {
 		switch ((ps->pm1_cnt & SLP_TYP) >> SLP_TYP_SHIFT) {
-#if CONFIG_HAVE_ACPI_RESUME
 		case SLP_TYP_S3:
-			prev_sleep_state = SLEEP_STATE_S3;
+			if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME))
+				prev_sleep_state = SLEEP_STATE_S3;
 			break;
-#endif
 		case SLP_TYP_S5:
 			prev_sleep_state = SLEEP_STATE_S5;
 			break;

arch/x86/cpu/cpu.c

@@ -163,10 +163,10 @@ int default_print_cpuinfo(void)
 	       cpu_has_64bit() ? "x86_64" : "x86",
 	       cpu_vendor_name(gd->arch.x86_vendor), gd->arch.x86_device);
 
-#ifdef CONFIG_HAVE_ACPI_RESUME
-	debug("ACPI previous sleep state: %s\n",
-	      acpi_ss_string(gd->arch.prev_sleep_state));
-#endif
+	if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)) {
+		debug("ACPI previous sleep state: %s\n",
+		      acpi_ss_string(gd->arch.prev_sleep_state));
+	}
 
 	return 0;
 }
@@ -191,12 +191,12 @@ int last_stage_init(void)
 
 	board_final_cleanup();
 
-#ifdef CONFIG_HAVE_ACPI_RESUME
-	fadt = acpi_find_fadt();
+	if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)) {
+		fadt = acpi_find_fadt();
 
-	if (fadt && gd->arch.prev_sleep_state == ACPI_S3)
-		acpi_resume(fadt);
-#endif
+		if (fadt && gd->arch.prev_sleep_state == ACPI_S3)
+			acpi_resume(fadt);
+	}
 
 	write_tables();
 
@@ -277,17 +277,17 @@ int reserve_arch(void)
 	high_table_reserve();
 #endif
 
-#ifdef CONFIG_HAVE_ACPI_RESUME
-	acpi_s3_reserve();
+	if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)) {
+		acpi_s3_reserve();
 
-#ifdef CONFIG_HAVE_FSP
-	/*
-	 * Save stack address to CMOS so that at next S3 boot,
-	 * we can use it as the stack address for fsp_contiue()
-	 */
-	fsp_save_s3_stack();
-#endif /* CONFIG_HAVE_FSP */
-#endif /* CONFIG_HAVE_ACPI_RESUME */
+		if (IS_ENABLED(CONFIG_HAVE_FSP)) {
+			/*
+			 * Save stack address to CMOS so that at next S3 boot,
+			 * we can use it as the stack address for fsp_contiue()
+			 */
+			fsp_save_s3_stack();
+		}
+	}
 
 	return 0;
 }

arch/x86/include/asm/global_data.h

@@ -116,10 +116,8 @@ struct arch_global_data {
 	u32 high_table_ptr;
 	u32 high_table_limit;
 #endif
-#ifdef CONFIG_HAVE_ACPI_RESUME
 	int prev_sleep_state;		/* Previous sleep state ACPI_S0/1../5 */
 	ulong backup_mem;		/* Backup memory address for S3 */
-#endif
 #ifdef CONFIG_FSP_VERSION2
 	struct fsp_header *fsp_s_hdr;	/* Pointer to FSP-S header */
 #endif

arch/x86/lib/coreboot_table.c

@@ -21,11 +21,11 @@ int high_table_reserve(void)
 	gd->arch.high_table_ptr = gd->start_addr_sp;
 
 	/* clear the memory */
-#ifdef CONFIG_HAVE_ACPI_RESUME
-	if (gd->arch.prev_sleep_state != ACPI_S3)
-#endif
+	if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) &&
+	    gd->arch.prev_sleep_state != ACPI_S3) {
 		memset((void *)gd->arch.high_table_ptr, 0,
 		       CONFIG_HIGH_TABLE_SIZE);
+	}
 
 	gd->start_addr_sp &= ~0xf;
 

arch/x86/lib/fsp/fsp_common.c

@@ -60,7 +60,6 @@ void board_final_cleanup(void)
 		debug("OK\n");
 }
 
-#ifdef CONFIG_HAVE_ACPI_RESUME
 int fsp_save_s3_stack(void)
 {
 	struct udevice *dev;
@@ -84,4 +83,3 @@ int fsp_save_s3_stack(void)
 
 	return 0;
 }
-#endif

arch/x86/lib/fsp/fsp_dram.c

@@ -117,17 +117,21 @@ unsigned int install_e820_map(unsigned int max_entries,
 	entries[num_entries].type = E820_RESERVED;
 	num_entries++;
 
-#ifdef CONFIG_HAVE_ACPI_RESUME
-	/*
-	 * Everything between U-Boot's stack and ram top needs to be
-	 * reserved in order for ACPI S3 resume to work.
-	 */
-	entries[num_entries].addr = gd->start_addr_sp - CONFIG_STACK_SIZE;
-	entries[num_entries].size = gd->ram_top - gd->start_addr_sp +
-		CONFIG_STACK_SIZE;
-	entries[num_entries].type = E820_RESERVED;
-	num_entries++;
-#endif
+	if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)) {
+		ulong stack_size;
+
+		stack_size = CONFIG_IS_ENABLED(HAVE_ACPI_RESUME,
+					       (CONFIG_STACK_SIZE), (0));
+		/*
+		 * Everything between U-Boot's stack and ram top needs to be
+		 * reserved in order for ACPI S3 resume to work.
+		 */
+		entries[num_entries].addr = gd->start_addr_sp - stack_size;
+		entries[num_entries].size = gd->ram_top - gd->start_addr_sp +
+			stack_size;
+		entries[num_entries].type = E820_RESERVED;
+		num_entries++;
+	}
 
 	return num_entries;
 }

arch/x86/lib/fsp1/fsp_common.c

@@ -46,10 +46,12 @@ int arch_fsp_init(void)
 	void *nvs;
 	int stack = CONFIG_FSP_TEMP_RAM_ADDR;
 	int boot_mode = BOOT_FULL_CONFIG;
-#ifdef CONFIG_HAVE_ACPI_RESUME
-	int prev_sleep_state = chipset_prev_sleep_state();
-	gd->arch.prev_sleep_state = prev_sleep_state;
-#endif
+	int prev_sleep_state;
+
+	if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)) {
+		prev_sleep_state = chipset_prev_sleep_state();
+		gd->arch.prev_sleep_state = prev_sleep_state;
+	}
 
 	if (!gd->arch.hob_list) {
 		if (IS_ENABLED(CONFIG_ENABLE_MRC_CACHE))
@@ -57,8 +59,8 @@ int arch_fsp_init(void)
 		else
 			nvs = NULL;
 
-#ifdef CONFIG_HAVE_ACPI_RESUME
-		if (prev_sleep_state == ACPI_S3) {
+		if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) &&
+		    prev_sleep_state == ACPI_S3) {
 			if (nvs == NULL) {
 				/* If waking from S3 and no cache then */
 				debug("No MRC cache found in S3 resume path\n");
@@ -79,7 +81,7 @@ int arch_fsp_init(void)
 			stack = cmos_read32(CMOS_FSP_STACK_ADDR);
 			boot_mode = BOOT_ON_S3_RESUME;
 		}
-#endif
+
 		/*
 		 * The first time we enter here, call fsp_init().
 		 * Note the execution does not return to this function,

arch/x86/lib/fsp2/fsp_dram.c

@@ -27,11 +27,10 @@ int dram_init(void)
 		return 0;
 	}
 	if (spl_phase() == PHASE_SPL) {
-#ifdef CONFIG_HAVE_ACPI_RESUME
-		bool s3wake = gd->arch.prev_sleep_state == ACPI_S3;
-#else
 		bool s3wake = false;
-#endif
+
+		s3wake = IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) &&
+			gd->arch.prev_sleep_state == ACPI_S3;
 
 		ret = fsp_memory_init(s3wake,
 			      IS_ENABLED(CONFIG_APL_BOOT_FROM_FAST_SPI_FLASH));