From d79173b4b7519b537cf64c984d27daa26aad23c0 Mon Sep 17 00:00:00 2001
From: Atish Patra <atish.patra@wdc.com>
Date: Tue, 4 Feb 2020 15:09:14 -0800
Subject: platform: Add an platform ops to return platform specific tlb flush
limit
If a platform requires to perform a tlb full flush, they should set
the tlb_range_flush_limit value to zero. However, corresponding platform
API ignore the value and continue to return the default value.
Add a platform ops to retrieve platform specific tlb range flush limit.
The platform variable becomes redundant in presence of the platform ops.
Take this opportunity to remove the variable as well.
The default is still set to smallest page size in RISC-V (4KB), as there
is no way to figure out a best value for all platforms. Individual platform
should set it to the optimal value for their platform.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
---
platform/template/platform.c | 1 -
1 file changed, 1 deletion(-)
(limited to 'platform')
diff --git a/platform/template/platform.c b/platform/template/platform.c
index 1646c8c..f959a11 100644
--- a/platform/template/platform.c
+++ b/platform/template/platform.c
@@ -224,6 +224,5 @@ const struct sbi_platform platform = {
.hart_count = 1,
.hart_stack_size = 4096,
.disabled_hart_mask = 0,
- .tlb_range_flush_limit = 0,
.platform_ops_addr = (unsigned long)&platform_ops
};
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