SM8250 SoC uses LLCC IP version 2. In this version, the WRSC_EN register
needs to be written to enable the Write Sub Cache for each SCID. Hence,
use a dedicated "write_scid_en" member with predefined values and write
them for SoCs enabling the "llcc_v2" flag.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
---
drivers/soc/qcom/llcc-qcom.c | 40 ++++++++++++++++++++++++++++++
include/linux/soc/qcom/llcc-qcom.h | 1 +
2 files changed, 41 insertions(+)
diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c
index 16b421608e9c..3ec4cdffa852 100644
--- a/drivers/soc/qcom/llcc-qcom.c
+++ b/drivers/soc/qcom/llcc-qcom.c
@@ -47,6 +47,7 @@
#define LLCC_TRP_SCID_DIS_CAP_ALLOC 0x21f00
#define LLCC_TRP_PCB_ACT 0x21f04
+#define LLCC_TRP_WRSC_EN 0x21f20
#define BANK_OFFSET_STRIDE 0x80000
@@ -73,6 +74,7 @@
* then the ways assigned to this client are not flushed on power
* collapse.
* @activate_on_init: Activate the slice immediately after it is programmed
+ * @write_scid_en: Bit enables write cache support for a given scid.
*/
struct llcc_slice_config {
u32 usecase_id;
@@ -87,12 +89,14 @@ struct llcc_slice_config {
bool dis_cap_alloc;
bool retain_on_pc;
bool activate_on_init;
+ bool write_scid_en;
};
struct qcom_llcc_config {
const struct llcc_slice_config *sct_data;
int size;
bool need_llcc_cfg;
+ bool llcc_v2;
};
static const struct llcc_slice_config sc7180_data[] = {
@@ -147,6 +151,25 @@ static const struct llcc_slice_config sm8150_data[] = {
{ LLCC_WRCACHE, 31, 128, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 0 },
};
+static const struct llcc_slice_config sm8250_data[] = {
+ { LLCC_CPUSS, 1, 3072, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 1, 0 },
+ { LLCC_VIDSC0, 2, 512, 3, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+ { LLCC_AUDIO, 6, 1024, 1, 0, 0xfff, 0x0, 0, 0, 0, 0, 0, 0 },
+ { LLCC_CMPT, 10, 1024, 1, 0, 0xfff, 0x0, 0, 0, 0, 0, 0, 0 },
+ { LLCC_GPUHTW, 11, 1024, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+ { LLCC_GPU, 12, 1024, 1, 0, 0xfff, 0x0, 0, 0, 0, 1, 0, 1 },
+ { LLCC_MMUHWT, 13, 1024, 1, 1, 0xfff, 0x0, 0, 0, 0, 0, 1, 0 },
+ { LLCC_CMPTDMA, 15, 1024, 1, 0, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+ { LLCC_DISP, 16, 3072, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+ { LLCC_VIDFW, 17, 512, 1, 0, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+ { LLCC_AUDHW, 22, 1024, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+ { LLCC_NPU, 23, 3072, 1, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+ { LLCC_WLHW, 24, 1024, 1, 0, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+ { LLCC_CVP, 28, 256, 3, 1, 0xfff, 0x0, 0, 0, 0, 1, 0, 0 },
+ { LLCC_APTCM, 30, 128, 3, 0, 0x0, 0x3, 1, 0, 0, 1, 0, 0 },
+ { LLCC_WRCACHE, 31, 256, 1, 1, 0xfff, 0x0, 0, 0, 0, 0, 1, 0 },
+};
+
static const struct qcom_llcc_config sc7180_cfg = {
.sct_data = sc7180_data,
.size = ARRAY_SIZE(sc7180_data),
@@ -164,6 +187,12 @@ static const struct qcom_llcc_config sm8150_cfg = {
.size = ARRAY_SIZE(sm8150_data),
};
+static const struct qcom_llcc_config sm8250_cfg = {
+ .sct_data = sm8250_data,
+ .size = ARRAY_SIZE(sm8250_data),
+ .llcc_v2 = true,
+};
+
static struct llcc_drv_data *drv_data = (void *) -EPROBE_DEFER;
/**
@@ -413,6 +442,16 @@ static int _qcom_llcc_cfg_program(const struct llcc_slice_config *config,
return ret;
}
+ if (cfg->llcc_v2) {
+ u32 wren;
+
+ wren = config->write_scid_en << config->slice_id;
+ ret = regmap_update_bits(drv_data->bcast_regmap, LLCC_TRP_WRSC_EN,
+ BIT(config->slice_id), wren);
+ if (ret)
+ return ret;
+ }
+
if (config->activate_on_init) {
desc.slice_id = config->slice_id;
ret = llcc_slice_activate(&desc);
@@ -559,6 +598,7 @@ static const struct of_device_id qcom_llcc_of_match[] = {
{ .compatible = "qcom,sc7180-llcc", .data = &sc7180_cfg },
{ .compatible = "qcom,sdm845-llcc", .data = &sdm845_cfg },
{ .compatible = "qcom,sm8150-llcc", .data = &sm8150_cfg },
+ { .compatible = "qcom,sm8250-llcc", .data = &sm8250_cfg },
{ }
};
diff --git a/include/linux/soc/qcom/llcc-qcom.h b/include/linux/soc/qcom/llcc-qcom.h
index 3db6797ba6ff..85f18ae7692f 100644
--- a/include/linux/soc/qcom/llcc-qcom.h
+++ b/include/linux/soc/qcom/llcc-qcom.h
@@ -29,6 +29,7 @@
#define LLCC_AUDHW 22
#define LLCC_NPU 23
#define LLCC_WLHW 24
+#define LLCC_CVP 28
#define LLCC_MODPE 29
#define LLCC_APTCM 30
#define LLCC_WRCACHE 31
--
2.25.1
