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Groups > linux.kernel > #1234724

[RFC PATCH 2/3] memory: tegra: add TLB cache line size

From Tomasz Figa <tfiga@chromium.org>
Newsgroups linux.kernel
Subject [RFC PATCH 2/3] memory: tegra: add TLB cache line size
Date 2015-09-29 07:30 +0200
Message-ID <qdVEe-5sa-23@gated-at.bofh.it> (permalink)
References <qdVEe-5sa-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Vince Hsu <vince.h@nvidia.com>

This patch adds SMMU line size to Tegra SoC data struct to enable SMMU
driver to use this knowledge in code added by further patch.

Also add the missing TLB line number for Tegra124.

Signed-off-by: Vince Hsu <vince.h@nvidia.com>
[tfiga@chromium.org: Rebased, revised commit message.]
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
---
 drivers/memory/tegra/tegra114.c | 1 +
 drivers/memory/tegra/tegra124.c | 3 +++
 drivers/memory/tegra/tegra210.c | 1 +
 drivers/memory/tegra/tegra30.c  | 1 +
 include/soc/tegra/mc.h          | 1 +
 5 files changed, 7 insertions(+)

diff --git a/drivers/memory/tegra/tegra114.c b/drivers/memory/tegra/tegra114.c
index ba8fff3..173d2dd 100644
--- a/drivers/memory/tegra/tegra114.c
+++ b/drivers/memory/tegra/tegra114.c
@@ -920,6 +920,7 @@ static const struct tegra_smmu_soc tegra114_smmu_soc = {
 	.supports_round_robin_arbitration = false,
 	.supports_request_limit = false,
 	.num_tlb_lines = 32,
+	.tlb_line_size = 16,
 	.num_asids = 4,
 };
 
diff --git a/drivers/memory/tegra/tegra124.c b/drivers/memory/tegra/tegra124.c
index 21e7255..ff12487 100644
--- a/drivers/memory/tegra/tegra124.c
+++ b/drivers/memory/tegra/tegra124.c
@@ -1007,6 +1007,8 @@ static const struct tegra_smmu_soc tegra124_smmu_soc = {
 	.num_swgroups = ARRAY_SIZE(tegra124_swgroups),
 	.supports_round_robin_arbitration = true,
 	.supports_request_limit = true,
+	.num_tlb_lines = 32,
+	.tlb_line_size = 32,
 	.num_asids = 128,
 };
 
@@ -1031,6 +1033,7 @@ static const struct tegra_smmu_soc tegra132_smmu_soc = {
 	.supports_round_robin_arbitration = true,
 	.supports_request_limit = true,
 	.num_tlb_lines = 32,
+	.tlb_line_size = 32,
 	.num_asids = 128,
 };
 
diff --git a/drivers/memory/tegra/tegra210.c b/drivers/memory/tegra/tegra210.c
index 5e144ab..bf6a9c1 100644
--- a/drivers/memory/tegra/tegra210.c
+++ b/drivers/memory/tegra/tegra210.c
@@ -1067,6 +1067,7 @@ static const struct tegra_smmu_soc tegra210_smmu_soc = {
 	.supports_round_robin_arbitration = true,
 	.supports_request_limit = true,
 	.num_tlb_lines = 32,
+	.tlb_line_size = 32,
 	.num_asids = 128,
 };
 
diff --git a/drivers/memory/tegra/tegra30.c b/drivers/memory/tegra/tegra30.c
index b447378..08951db 100644
--- a/drivers/memory/tegra/tegra30.c
+++ b/drivers/memory/tegra/tegra30.c
@@ -942,6 +942,7 @@ static const struct tegra_smmu_soc tegra30_smmu_soc = {
 	.supports_round_robin_arbitration = false,
 	.supports_request_limit = false,
 	.num_tlb_lines = 16,
+	.tlb_line_size = 16,
 	.num_asids = 4,
 };
 
diff --git a/include/soc/tegra/mc.h b/include/soc/tegra/mc.h
index 44202ff..a6dbb35 100644
--- a/include/soc/tegra/mc.h
+++ b/include/soc/tegra/mc.h
@@ -62,6 +62,7 @@ struct tegra_smmu_soc {
 	bool supports_request_limit;
 
 	unsigned int num_tlb_lines;
+	unsigned int tlb_line_size;
 	unsigned int num_asids;
 };
 
-- 
2.6.0.rc2.230.g3dd15c0

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Thread

[RFC PATCH 2/3] memory: tegra: add TLB cache line size Tomasz Figa <tfiga@chromium.org> - 2015-09-29 07:30 +0200
  Re: [RFC PATCH 2/3] memory: tegra: add TLB cache line size Thierry Reding <thierry.reding@gmail.com> - 2015-09-29 11:50 +0200
    Re: [RFC PATCH 2/3] memory: tegra: add TLB cache line size Tomasz Figa <tfiga@chromium.org> - 2015-09-29 14:30 +0200

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