diff options
Diffstat (limited to 'include/linux/soc')
| -rw-r--r-- | include/linux/soc/qcom/ubwc.h | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/include/linux/soc/qcom/ubwc.h b/include/linux/soc/qcom/ubwc.h index fee778360ac2..7c9506741001 100644 --- a/include/linux/soc/qcom/ubwc.h +++ b/include/linux/soc/qcom/ubwc.h @@ -22,9 +22,6 @@ struct qcom_ubwc_cfg_data { * UBWC 4.0 adds the optional ability to disable levels 2 & 3. */ u32 ubwc_swizzle; -#define UBWC_SWIZZLE_ENABLE_LVL1 BIT(0) -#define UBWC_SWIZZLE_ENABLE_LVL2 BIT(1) -#define UBWC_SWIZZLE_ENABLE_LVL3 BIT(2) /** * @highest_bank_bit: Highest Bank Bit @@ -55,12 +52,7 @@ static inline const struct qcom_ubwc_cfg_data *qcom_ubwc_config_get_data(void) static inline bool qcom_ubwc_get_ubwc_mode(const struct qcom_ubwc_cfg_data *cfg) { - bool ret = cfg->ubwc_enc_version == UBWC_1_0; - - if (ret && !(cfg->ubwc_swizzle & UBWC_SWIZZLE_ENABLE_LVL1)) - pr_err("UBWC config discrepancy - level 1 swizzling disabled on UBWC 1.0\n"); - - return ret; + return cfg->ubwc_enc_version == UBWC_1_0; } static inline bool qcom_ubwc_min_acc_length_64b(const struct qcom_ubwc_cfg_data *cfg) @@ -85,8 +77,31 @@ static inline bool qcom_ubwc_bank_spread(const struct qcom_ubwc_cfg_data *cfg) return true; } +#define UBWC_SWIZZLE_ENABLE_LVL1 BIT(0) +#define UBWC_SWIZZLE_ENABLE_LVL2 BIT(1) +#define UBWC_SWIZZLE_ENABLE_LVL3 BIT(2) + +/** + * @qcom_ubwc_swizzle: Whether to enable level 1, 2 & 3 bank swizzling. + * + * UBWC 1.0 always enables all three levels. + * UBWC 2.0 removes level 1 bank swizzling, leaving levels 2 & 3. + * UBWC 4.0 adds the optional ability to disable levels 2 & 3. + */ static inline u32 qcom_ubwc_swizzle(const struct qcom_ubwc_cfg_data *cfg) { + if (cfg->ubwc_enc_version == 0) + return 0; + + if (cfg->ubwc_enc_version == UBWC_1_0) + return UBWC_SWIZZLE_ENABLE_LVL1 | + UBWC_SWIZZLE_ENABLE_LVL2 | + UBWC_SWIZZLE_ENABLE_LVL3; + + if (cfg->ubwc_enc_version < UBWC_4_0) + return UBWC_SWIZZLE_ENABLE_LVL2 | + UBWC_SWIZZLE_ENABLE_LVL3; + return cfg->ubwc_swizzle; } |