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From 2dcd28f7b4f5b92686da45f4ec46802026fb8573 Mon Sep 17 00:00:00 2001
From: Roy Pledge <Roy.Pledge@freescale.com>
Date: Mon, 11 Jul 2016 14:34:59 +0800
Subject: [PATCH 24/70] Add APIs to setup HugeTLB mappings for USDPAA
commit 189653d40d5dc41b8bd4cfb61f766bd8a89b1e34
[context adjustment]
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
---
arch/powerpc/mm/fsl_booke_mmu.c | 14 +++++++++++++-
arch/powerpc/mm/mmu_decl.h | 6 ++++++
2 files changed, 19 insertions(+), 1 deletion(-)
--- a/arch/powerpc/mm/fsl_booke_mmu.c
+++ b/arch/powerpc/mm/fsl_booke_mmu.c
@@ -105,7 +105,7 @@ unsigned long p_mapped_by_tlbcam(phys_ad
* an unsigned long (for example, 32-bit implementations cannot support a 4GB
* size).
*/
-static void settlbcam(int index, unsigned long virt, phys_addr_t phys,
+void settlbcam(int index, unsigned long virt, phys_addr_t phys,
unsigned long size, unsigned long flags, unsigned int pid)
{
unsigned int tsize;
@@ -143,6 +143,18 @@ static void settlbcam(int index, unsigne
tlbcam_addrs[index].phys = phys;
}
+void cleartlbcam(unsigned long virt, unsigned int pid)
+{
+ int i = 0;
+ for (i = 0; i < NUM_TLBCAMS; i++) {
+ if (tlbcam_addrs[i].start == virt) {
+ TLBCAM[i].MAS1 = 0;
+ loadcam_entry(i);
+ return;
+ }
+ }
+}
+
unsigned long calc_cam_sz(unsigned long ram, unsigned long virt,
phys_addr_t phys)
{
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -91,6 +91,12 @@ extern void _tlbia(void);
#endif /* CONFIG_PPC_MMU_NOHASH */
+void settlbcam(int index, unsigned long virt, phys_addr_t phys,
+ unsigned long size, unsigned long flags, unsigned int pid);
+
+void cleartlbcam(unsigned long virt, unsigned int pid);
+
+
#ifdef CONFIG_PPC32
extern void mapin_ram(void);
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