arch/x86: Use 'enum cb_err'

Change-Id: I38e4b8c6adfaaa45377b2fbe0644285d21841cd1
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68369
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Reviewed-by: Felix Singer <felixsinger@posteo.net>

src/arch/x86/pirq_routing.c

@@ -1,10 +1,11 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
-#include <console/console.h>
 #include <arch/pirq_routing.h>
 #include <commonlib/helpers.h>
-#include <string.h>
+#include <console/console.h>
 #include <device/pci.h>
+#include <string.h>
+#include <types.h>
 
 static void check_pirq_routing_table(struct irq_routing_table *rt)
 {
@@ -59,7 +60,7 @@ static void check_pirq_routing_table(struct irq_routing_table *rt)
 	printk(BIOS_INFO, "done.\n");
 }
 
-static int verify_copy_pirq_routing_table(unsigned long addr,
+static enum cb_err verify_copy_pirq_routing_table(unsigned long addr,
 	const struct irq_routing_table *routing_table)
 {
 	int i;
@@ -73,14 +74,14 @@ static int verify_copy_pirq_routing_table(unsigned long addr,
 	for (i = 0; i < routing_table->size; i++) {
 		if (*(rt_curr + i) != *(rt_orig + i)) {
 			printk(BIOS_INFO, "failed\n");
-			return -1;
+			return CB_ERR;
 		}
 	}
 	printk(BIOS_INFO, "done\n");
 
 	check_pirq_routing_table((struct irq_routing_table *)addr);
 
-	return 0;
+	return CB_SUCCESS;
 }
 
 static u8 pirq_get_next_free_irq(u8 *pirq, u16 bitmap)

src/arch/x86/postcar_loader.c

@@ -20,7 +20,7 @@ static size_t var_mtrr_ctx_size(void)
 	return sizeof(struct var_mtrr_context) + mtrr_count * 2 * sizeof(msr_t);
 }
 
-static int postcar_frame_init(struct postcar_frame *pcf)
+static enum cb_err postcar_frame_init(struct postcar_frame *pcf)
 {
 	memset(pcf, 0, sizeof(*pcf));
 
@@ -29,13 +29,13 @@ static int postcar_frame_init(struct postcar_frame *pcf)
 	ctx = cbmem_add(CBMEM_ID_ROMSTAGE_RAM_STACK, var_mtrr_ctx_size());
 	if (ctx == NULL) {
 		printk(BIOS_ERR, "Couldn't add var_mtrr_ctx setup in cbmem.\n");
-		return -1;
+		return CB_ERR;
 	}
 
 	pcf->mtrr = ctx;
 	var_mtrr_context_init(pcf->mtrr);
 
-	return 0;
+	return CB_SUCCESS;
 }
 
 void postcar_frame_add_mtrr(struct postcar_frame *pcf,

src/arch/x86/rdrand.c

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <random.h>
-#include <stdint.h>
+#include <types.h>
 
 /*
  * Intel recommends that applications attempt 10 retries in a tight loop
@@ -41,19 +41,19 @@ static inline uint8_t rdrand_64(uint64_t *rand)
 }
 #endif
 
-int get_random_number_32(uint32_t *rand)
+enum cb_err get_random_number_32(uint32_t *rand)
 {
 	int i;
 
 	/* Perform a loop call until RDRAND succeeds or returns failure. */
 	for (i = 0; i < RDRAND_RETRY_LOOPS; i++) {
 		if (rdrand_32(rand))
-			return 0;
+			return CB_SUCCESS;
 	}
-	return -1;
+	return CB_ERR;
 }
 
-int get_random_number_64(uint64_t *rand)
+enum cb_err get_random_number_64(uint64_t *rand)
 {
 	int i;
 	uint32_t rand_high, rand_low;
@@ -62,13 +62,13 @@ int get_random_number_64(uint64_t *rand)
 	for (i = 0; i < RDRAND_RETRY_LOOPS; i++) {
 #if ENV_X86_64
 		if (rdrand_64(rand))
-			return 0;
+			return CB_SUCCESS;
 #endif
 		if (rdrand_32(&rand_high) && rdrand_32(&rand_low)) {
 			*rand = ((uint64_t)rand_high << 32) |
 				(uint64_t)rand_low;
-			return 0;
+			return CB_SUCCESS;
 		}
 	}
-	return -1;
+	return CB_ERR;
 }

src/include/random.h

@@ -2,13 +2,13 @@
 #ifndef _RANDOM_H_
 #define _RANDOM_H_
 
-#include <stdint.h>
+#include <types.h>
 
 /*
  * Generates a 32/64 bit random number respectively.
  * return 0 on success and -1 on error.
  */
-int get_random_number_32(uint32_t *rand);
+enum cb_err get_random_number_32(uint32_t *rand);
-int get_random_number_64(uint64_t *rand);
+enum cb_err get_random_number_64(uint64_t *rand);
 
 #endif /* _RANDOM_H_ */