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| author | Sai Prakash Ranjan <quic_saipraka@quicinc.com> | 2022-01-28 13:17:10 +0530 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2022-02-10 18:29:33 -0600 |
| commit | 2b8175a1f108361c2c1a11b27415631994efbfce (patch) | |
| tree | 1e976491b0ee5615eb26ca77ca2513e386718c8d /drivers/soc/qcom | |
| parent | 8008e7902f28eb9e5459b21d375b3e5b4090efff (diff) | |
| download | linux-2b8175a1f108361c2c1a11b27415631994efbfce.tar.gz | |
soc: qcom: llcc: Add write-cache cacheable support
Newer SoCs with LLCC IP version 2.1.0.0 and later support write sub-cache cacheable feature. Use a separate llcc_slice_config member "write_scid_cacheable_en" to identify this feature and program LLCC_TRP_SCID_WRSC_CACHEABLE_EN register to enable it. Signed-off-by: Sai Prakash Ranjan <quic_saipraka@quicinc.com> Tested-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/83372c8178f579d055ec58212ce5af5d55abadd4.1643355594.git.quic_saipraka@quicinc.com
Diffstat (limited to 'drivers/soc/qcom')
| -rw-r--r-- | drivers/soc/qcom/llcc-qcom.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c index f15f4c51e997..af674fc6f680 100644 --- a/drivers/soc/qcom/llcc-qcom.c +++ b/drivers/soc/qcom/llcc-qcom.c @@ -51,10 +51,12 @@ #define LLCC_TRP_SCID_DIS_CAP_ALLOC 0x21f00 #define LLCC_TRP_PCB_ACT 0x21f04 #define LLCC_TRP_WRSC_EN 0x21f20 +#define LLCC_TRP_WRSC_CACHEABLE_EN 0x21f2c #define BANK_OFFSET_STRIDE 0x80000 #define LLCC_VERSION_2_0_0_0 0x02000000 +#define LLCC_VERSION_2_1_0_0 0x02010000 /** * struct llcc_slice_config - Data associated with the llcc slice @@ -80,6 +82,8 @@ * collapse. * @activate_on_init: Activate the slice immediately after it is programmed * @write_scid_en: Bit enables write cache support for a given scid. + * @write_scid_cacheable_en: Enables write cache cacheable support for a + * given scid (not supported on v2 or older hardware). */ struct llcc_slice_config { u32 usecase_id; @@ -95,6 +99,7 @@ struct llcc_slice_config { bool retain_on_pc; bool activate_on_init; bool write_scid_en; + bool write_scid_cacheable_en; }; struct qcom_llcc_config { @@ -515,6 +520,16 @@ static int _qcom_llcc_cfg_program(const struct llcc_slice_config *config, return ret; } + if (drv_data->version >= LLCC_VERSION_2_1_0_0) { + u32 wr_cache_en; + + wr_cache_en = config->write_scid_cacheable_en << config->slice_id; + ret = regmap_update_bits(drv_data->bcast_regmap, LLCC_TRP_WRSC_CACHEABLE_EN, + BIT(config->slice_id), wr_cache_en); + if (ret) + return ret; + } + if (config->activate_on_init) { desc.slice_id = config->slice_id; ret = llcc_slice_activate(&desc); |