lib: Simplify sbi_platform irqchip_init() hooks

Instead of having separate irqchip_init() hooks for cold and
warm boot, this patch updates struct sbi_platform to have just
one irqchip_init() hook. The type of boot (cold or warm) is now
a boolean flag parameter for the updated irqchip_init() hook.

Signed-off-by: Anup Patel <anup.patel@wdc.com>

include/sbi/sbi_platform.h

@@ -42,8 +42,7 @@ struct sbi_platform {
 	void (*console_putc)(char ch);
 	char (*console_getc)(void);
 	int (*console_init)(void);
-	int (*cold_irqchip_init)(void);
+	int (*irqchip_init)(u32 hartid, bool cold_boot);
-	int (*warm_irqchip_init)(u32 target_hart);
 	void (*ipi_inject)(u32 target_hart, u32 source_hart);
 	void (*ipi_sync)(u32 target_hart, u32 source_hart);
 	void (*ipi_clear)(u32 target_hart);
@@ -159,18 +158,11 @@ static inline int sbi_platform_console_init(struct sbi_platform *plat)
 	return 0;
 }
 
-static inline int sbi_platform_warm_irqchip_init(struct sbi_platform *plat,
+static inline int sbi_platform_irqchip_init(struct sbi_platform *plat,
-						 u32 target_hart)
+					    u32 hartid, bool cold_boot)
 {
-	if (plat && plat->warm_irqchip_init)
+	if (plat && plat->irqchip_init)
-		return plat->warm_irqchip_init(target_hart);
+		return plat->irqchip_init(hartid, cold_boot);
-	return 0;
-}
-
-static inline int sbi_platform_cold_irqchip_init(struct sbi_platform *plat)
-{
-	if (plat && plat->cold_irqchip_init)
-		return plat->cold_irqchip_init();
 	return 0;
 }
 

lib/sbi_init.c

@@ -46,11 +46,7 @@ static void __attribute__((noreturn)) init_coldboot(struct sbi_scratch *scratch,
 	if (rc)
 		sbi_hart_hang();
 
-	rc = sbi_platform_cold_irqchip_init(plat);
+	rc = sbi_platform_irqchip_init(plat, hartid, TRUE);
-	if (rc)
-		sbi_hart_hang();
-
-	rc = sbi_platform_warm_irqchip_init(plat, hartid);
 	if (rc)
 		sbi_hart_hang();
 
@@ -125,7 +121,7 @@ static void __attribute__((noreturn)) init_warmboot(struct sbi_scratch *scratch,
 	if (rc)
 		sbi_hart_hang();
 
-	rc = sbi_platform_warm_irqchip_init(plat, hartid);
+	rc = sbi_platform_irqchip_init(plat, hartid, FALSE);
 	if (rc)
 		sbi_hart_hang();
 

platform/kendryte/k210/platform.c

@@ -35,17 +35,21 @@ static char k210_console_getc(void)
 	return uarths_getc();
 }
 
-static int k210_cold_irqchip_init(void)
+static int k210_irqchip_init(u32 hartid, bool cold_boot)
 {
-	return plic_cold_irqchip_init(PLIC_BASE_ADDR, PLIC_NUM_SOURCES,
+	int rc;
+
+	if (cold_boot) {
+		rc = plic_cold_irqchip_init(PLIC_BASE_ADDR,
+					    PLIC_NUM_SOURCES,
 					    K210_HART_COUNT);
+		if (rc)
+			return rc;
 	}
 
-static int k210_warm_irqchip_init(u32 core_id)
+	return plic_warm_irqchip_init(hartid,
-{
+				      (2 * hartid),
-	return plic_warm_irqchip_init(core_id,
+				      (2 * hartid + 1));
-				      (2 * core_id),
-				      (2 * core_id + 1));
 }
 
 static int k210_cold_ipi_init(void)
@@ -87,8 +91,7 @@ struct sbi_platform platform = {
 	.console_putc = k210_console_putc,
 	.console_getc = k210_console_getc,
 
-	.cold_irqchip_init = k210_cold_irqchip_init,
+	.irqchip_init = k210_irqchip_init,
-	.warm_irqchip_init = k210_warm_irqchip_init,
 
 	.cold_ipi_init = k210_cold_ipi_init,
 	.warm_ipi_init = clint_warm_ipi_init,

platform/qemu/sifive_u/platform.c

@@ -74,18 +74,21 @@ static int sifive_u_console_init(void)
 				SIFIVE_U_PERIPH_CLK, 115200);
 }
 
-static int sifive_u_cold_irqchip_init(void)
+static int sifive_u_irqchip_init(u32 hartid, bool cold_boot)
 {
-	return plic_cold_irqchip_init(SIFIVE_U_PLIC_ADDR,
+	int rc;
+
+	if (cold_boot) {
+		rc = plic_cold_irqchip_init(SIFIVE_U_PLIC_ADDR,
 					    SIFIVE_U_PLIC_NUM_SOURCES,
 					    SIFIVE_U_HART_COUNT);
+		if (rc)
+			return rc;
 	}
 
-static int sifive_u_warm_irqchip_init(u32 target_hart)
+	return plic_warm_irqchip_init(hartid,
-{
+				      (2 * hartid),
-	return plic_warm_irqchip_init(target_hart,
+				      (2 * hartid + 1));
-				      (2 * target_hart),
-				      (2 * target_hart + 1));
 }
 
 static int sifive_u_cold_ipi_init(void)
@@ -118,8 +121,7 @@ struct sbi_platform platform = {
 	.console_putc = sifive_uart_putc,
 	.console_getc = sifive_uart_getc,
 	.console_init = sifive_u_console_init,
-	.cold_irqchip_init = sifive_u_cold_irqchip_init,
+	.irqchip_init = sifive_u_irqchip_init,
-	.warm_irqchip_init = sifive_u_warm_irqchip_init,
 	.ipi_inject = clint_ipi_inject,
 	.ipi_sync = clint_ipi_sync,
 	.ipi_clear = clint_ipi_clear,

platform/qemu/virt/platform.c

@@ -75,18 +75,21 @@ static int virt_console_init(void)
 			     VIRT_UART_BAUDRATE, 0, 1);
 }
 
-static int virt_cold_irqchip_init(void)
+static int virt_irqchip_init(u32 hartid, bool cold_boot)
 {
-	return plic_cold_irqchip_init(VIRT_PLIC_ADDR,
+	int rc;
+
+	if (cold_boot) {
+		rc = plic_cold_irqchip_init(VIRT_PLIC_ADDR,
 					    VIRT_PLIC_NUM_SOURCES,
 					    VIRT_HART_COUNT);
+		if (rc)
+			return rc;
 	}
 
-static int virt_warm_irqchip_init(u32 target_hart)
+	return plic_warm_irqchip_init(hartid,
-{
+				      (2 * hartid),
-	return plic_warm_irqchip_init(target_hart,
+				      (2 * hartid + 1));
-				      (2 * target_hart),
-				      (2 * target_hart + 1));
 }
 
 static int virt_cold_ipi_init(void)
@@ -119,8 +122,7 @@ struct sbi_platform platform = {
 	.console_putc = uart8250_putc,
 	.console_getc = uart8250_getc,
 	.console_init = virt_console_init,
-	.cold_irqchip_init = virt_cold_irqchip_init,
+	.irqchip_init = virt_irqchip_init,
-	.warm_irqchip_init = virt_warm_irqchip_init,
 	.ipi_inject = clint_ipi_inject,
 	.ipi_sync = clint_ipi_sync,
 	.ipi_clear = clint_ipi_clear,

platform/sifive/hifive_u540/platform.c

@@ -94,18 +94,21 @@ static int sifive_u_console_init(void)
 				peri_in_freq, SIFIVE_UART_BAUDRATE);
 }
 
-static int sifive_u_cold_irqchip_init(void)
+static int sifive_u_irqchip_init(u32 hartid, bool cold_boot)
 {
-	return plic_cold_irqchip_init(SIFIVE_U_PLIC_ADDR,
+	int rc;
+
+	if (cold_boot) {
+		rc = plic_cold_irqchip_init(SIFIVE_U_PLIC_ADDR,
 					    SIFIVE_U_PLIC_NUM_SOURCES,
 					    SIFIVE_U_HART_COUNT);
+		if (rc)
+			return rc;
 	}
 
-static int sifive_u_warm_irqchip_init(u32 target_hart)
+	return plic_warm_irqchip_init(hartid,
-{
+			(hartid) ? (2 * hartid - 1) : 0,
-	return plic_warm_irqchip_init(target_hart,
+			(hartid) ? (2 * hartid) : -1);
-			(target_hart) ? (2 * target_hart - 1) : 0,
-			(target_hart) ? (2 * target_hart) : -1);
 }
 
 static int sifive_u_cold_ipi_init(void)
@@ -138,8 +141,7 @@ struct sbi_platform platform = {
 	.console_putc = sifive_uart_putc,
 	.console_getc = sifive_uart_getc,
 	.console_init = sifive_u_console_init,
-	.cold_irqchip_init = sifive_u_cold_irqchip_init,
+	.irqchip_init = sifive_u_irqchip_init,
-	.warm_irqchip_init = sifive_u_warm_irqchip_init,
 	.ipi_inject = clint_ipi_inject,
 	.ipi_sync = clint_ipi_sync,
 	.ipi_clear = clint_ipi_clear,