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[U-Boot,v2,4/6] ARM: bcm283x: Allocate all mailbox buffers cacheline aligned

Message ID 1437426004-22549-5-git-send-email-alexanders83@web.de
State Superseded
Delegated to: Tom Rini
Headers show

Commit Message

Alexander Stein July 20, 2015, 9 p.m. UTC 
The mailbox buffer is required to be at least 16 bytes aligned, but for
cache invalidation and/or flush it needs to be cacheline aligned.
Use CONFIG_SYS_CACHELINE_SIZE alignment for all mailbox buffer allocations.

Signed-off-by: Alexander Stein <alexanders83@web.de>
---
 board/raspberrypi/rpi/rpi.c | 10 +++++-----
 drivers/video/bcm2835.c     |  4 ++--
 2 files changed, 7 insertions(+), 7 deletions(-)
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Patch

diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
index 96fe870..d5d3fec 100644
--- a/board/raspberrypi/rpi/rpi.c
+++ b/board/raspberrypi/rpi/rpi.c
@@ -182,7 +182,7 @@  u32 rpi_board_rev = 0;
 
 int dram_init(void)
 {
-	ALLOC_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1, 16);
+	ALLOC_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1, CONFIG_SYS_CACHELINE_SIZE);
 	int ret;
 
 	BCM2835_MBOX_INIT_HDR(msg);
@@ -212,7 +212,7 @@  static void set_fdtfile(void)
 
 static void set_usbethaddr(void)
 {
-	ALLOC_ALIGN_BUFFER(struct msg_get_mac_address, msg, 1, 16);
+	ALLOC_ALIGN_BUFFER(struct msg_get_mac_address, msg, 1, CONFIG_SYS_CACHELINE_SIZE);
 	int ret;
 
 	if (!models[rpi_board_rev].has_onboard_eth)
@@ -245,7 +245,7 @@  int misc_init_r(void)
 
 static int power_on_module(u32 module)
 {
-	ALLOC_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1, 16);
+	ALLOC_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1, CONFIG_SYS_CACHELINE_SIZE);
 	int ret;
 
 	BCM2835_MBOX_INIT_HDR(msg_pwr);
@@ -269,7 +269,7 @@  static int power_on_module(u32 module)
 
 static void get_board_rev(void)
 {
-	ALLOC_ALIGN_BUFFER(struct msg_get_board_rev, msg, 1, 16);
+	ALLOC_ALIGN_BUFFER(struct msg_get_board_rev, msg, 1, CONFIG_SYS_CACHELINE_SIZE);
 	int ret;
 	const char *name;
 
@@ -324,7 +324,7 @@  int board_init(void)
 
 int board_mmc_init(bd_t *bis)
 {
-	ALLOC_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1, 16);
+	ALLOC_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1, CONFIG_SYS_CACHELINE_SIZE);
 	int ret;
 
 	power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
diff --git a/drivers/video/bcm2835.c b/drivers/video/bcm2835.c
index 1f18231..30e22cc 100644
--- a/drivers/video/bcm2835.c
+++ b/drivers/video/bcm2835.c
@@ -38,8 +38,8 @@  struct msg_setup {
 
 void lcd_ctrl_init(void *lcdbase)
 {
-	ALLOC_ALIGN_BUFFER(struct msg_query, msg_query, 1, 16);
-	ALLOC_ALIGN_BUFFER(struct msg_setup, msg_setup, 1, 16);
+	ALLOC_ALIGN_BUFFER(struct msg_query, msg_query, 1, CONFIG_SYS_CACHELINE_SIZE);
+	ALLOC_ALIGN_BUFFER(struct msg_setup, msg_setup, 1, CONFIG_SYS_CACHELINE_SIZE);
 	int ret;
 	u32 w, h;