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authorDmitry Osipenko <digetx@gmail.com>2020-11-04 19:49:08 +0300
committerKrzysztof Kozlowski <krzk@kernel.org>2020-11-26 18:50:35 +0100
commit06f079816d4c4e43d4128f394ae249934a32dffd (patch)
tree972b94fdb2280d22cfe3a3b5e53c5b6efc51406a /include/soc
parentd5ecac0afa30811901eb401067f196e688aeb73e (diff)
memory: tegra-mc: Add interconnect framework
Add common SoC-agnostic ICC framework which turns Tegra Memory Controller into a memory interconnection provider. This allows us to use interconnect API for tuning of memory configurations. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Peter Geis <pgwipeout@gmail.com> Tested-by: Nicolas Chauvet <kwizart@gmail.com> Link: https://lore.kernel.org/r/20201104164923.21238-33-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'include/soc')
-rw-r--r--include/soc/tegra/mc.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/soc/tegra/mc.h b/include/soc/tegra/mc.h
index d9395af98143..43876216de34 100644
--- a/include/soc/tegra/mc.h
+++ b/include/soc/tegra/mc.h
@@ -6,7 +6,9 @@
#ifndef __SOC_TEGRA_MC_H__
#define __SOC_TEGRA_MC_H__
+#include <linux/bits.h>
#include <linux/err.h>
+#include <linux/interconnect-provider.h>
#include <linux/reset-controller.h>
#include <linux/types.h>
@@ -141,6 +143,17 @@ struct tegra_mc_reset_ops {
const struct tegra_mc_reset *rst);
};
+#define TEGRA_MC_ICC_TAG_DEFAULT 0
+#define TEGRA_MC_ICC_TAG_ISO BIT(0)
+
+struct tegra_mc_icc_ops {
+ int (*set)(struct icc_node *src, struct icc_node *dst);
+ int (*aggregate)(struct icc_node *node, u32 tag, u32 avg_bw,
+ u32 peak_bw, u32 *agg_avg, u32 *agg_peak);
+ struct icc_node_data *(*xlate_extended)(struct of_phandle_args *spec,
+ void *data);
+};
+
struct tegra_mc_soc {
const struct tegra_mc_client *clients;
unsigned int num_clients;
@@ -160,6 +173,8 @@ struct tegra_mc_soc {
const struct tegra_mc_reset_ops *reset_ops;
const struct tegra_mc_reset *resets;
unsigned int num_resets;
+
+ const struct tegra_mc_icc_ops *icc_ops;
};
struct tegra_mc {
@@ -178,6 +193,8 @@ struct tegra_mc {
struct reset_controller_dev reset;
+ struct icc_provider provider;
+
spinlock_t lock;
};