From: Stephen Warren <swarren@nvidia.com>
Date: Wed, 19 Oct 2016 21:18:47 +0000 (-0600)
Subject: ARM: tegra186: call secure monitor for all cache-wide ops
X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=a8d0526133e542ea93a741fd18833e571e817775;p=u-boot.git

ARM: tegra186: call secure monitor for all cache-wide ops

An SMC call is required for all cache-wide operations on Tegra186. This
patch implements the two missing hooks now that U-Boot supports them, and
fixes the mapping of "hook name" to SMC call code.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
---

diff --git a/arch/arm/mach-tegra/tegra186/cache.S b/arch/arm/mach-tegra/tegra186/cache.S
index 3ca3f3c8af..3061dc2ecf 100644
--- a/arch/arm/mach-tegra/tegra186/cache.S
+++ b/arch/arm/mach-tegra/tegra186/cache.S
@@ -9,10 +9,10 @@
 
 #define SMC_SIP_INVOKE_MCE		0x82FFFF00
 #define MCE_SMC_ROC_FLUSH_CACHE		(SMC_SIP_INVOKE_MCE | 11)
+#define MCE_SMC_ROC_FLUSH_CACHE_ONLY	(SMC_SIP_INVOKE_MCE | 14)
+#define MCE_SMC_ROC_CLEAN_CACHE_ONLY	(SMC_SIP_INVOKE_MCE | 15)
 
-ENTRY(__asm_flush_l3_dcache)
-	mov	x0, #(MCE_SMC_ROC_FLUSH_CACHE & 0xffff)
-	movk	x0, #(MCE_SMC_ROC_FLUSH_CACHE >> 16), lsl #16
+ENTRY(__asm_tegra_cache_smc)
 	mov	x1, #0
 	mov	x2, #0
 	mov	x3, #0
@@ -22,4 +22,22 @@ ENTRY(__asm_flush_l3_dcache)
 	smc	#0
 	mov	x0, #0
 	ret
+ENDPROC(__asm_invalidate_l3_dcache)
+
+ENTRY(__asm_invalidate_l3_dcache)
+	mov	x0, #(MCE_SMC_ROC_FLUSH_CACHE_ONLY & 0xffff)
+	movk	x0, #(MCE_SMC_ROC_FLUSH_CACHE_ONLY >> 16), lsl #16
+	b	__asm_tegra_cache_smc
+ENDPROC(__asm_invalidate_l3_dcache)
+
+ENTRY(__asm_flush_l3_dcache)
+	mov	x0, #(MCE_SMC_ROC_CLEAN_CACHE_ONLY & 0xffff)
+	movk	x0, #(MCE_SMC_ROC_CLEAN_CACHE_ONLY >> 16), lsl #16
+	b	__asm_tegra_cache_smc
 ENDPROC(__asm_flush_l3_dcache)
+
+ENTRY(__asm_invalidate_l3_icache)
+	mov	x0, #(MCE_SMC_ROC_FLUSH_CACHE & 0xffff)
+	movk	x0, #(MCE_SMC_ROC_FLUSH_CACHE >> 16), lsl #16
+	b	__asm_tegra_cache_smc
+ENDPROC(__asm_invalidate_l3_icache)