diff options
| author | Francisco Munoz Ruiz <francisco.ruiz@oss.qualcomm.com> | 2026-04-07 14:51:48 -0700 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2026-05-13 11:45:57 -0500 |
| commit | ac23106a9b9a0f6ed90002ae3d6fe7c14e97e6bf (patch) | |
| tree | 01be235c56aaedf2642c684cdcdf8b44f3485d16 /include/linux/soc/qcom | |
| parent | cb4a414bacbfdcb837048146b8979032d87e4961 (diff) | |
soc: qcom: llcc-qcom: get SCT descriptors from fw-populated memory
Retrieve System Cache Table (SCT) descriptors from a shared memory
region populated by firmware.
SCT initialization and programming are performed entirely by firmware
outside of Linux. The LLCC driver only consumes the pre-initialized
descriptor data and does not configure SCT itself.
Support this mechanism for future SoCs that provide SCT programming
via firmware.
Signed-off-by: Francisco Munoz Ruiz <francisco.ruiz@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260407-external_llcc_changes2set-v2-2-b5017ce2020b@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Diffstat (limited to 'include/linux/soc/qcom')
| -rw-r--r-- | include/linux/soc/qcom/llcc-qcom.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/linux/soc/qcom/llcc-qcom.h b/include/linux/soc/qcom/llcc-qcom.h index 227125d84318..b5e917154998 100644 --- a/include/linux/soc/qcom/llcc-qcom.h +++ b/include/linux/soc/qcom/llcc-qcom.h @@ -90,11 +90,13 @@ /** * struct llcc_slice_desc - Cache slice descriptor * @slice_id: llcc slice id + * @uid: Unique ID associated with the llcc device * @slice_size: Size allocated for the llcc slice * @refcount: Atomic counter to track activate/deactivate calls */ struct llcc_slice_desc { u32 slice_id; + u32 uid; size_t slice_size; refcount_t refcount; }; @@ -147,6 +149,7 @@ struct llcc_edac_reg_offset { /** * struct llcc_drv_data - Data associated with the llcc driver + * @dev: device back-pointer for this llcc instance * @regmaps: regmaps associated with the llcc device * @bcast_regmap: regmap associated with llcc broadcast OR offset * @bcast_and_regmap: regmap associated with llcc broadcast AND offset @@ -157,10 +160,11 @@ struct llcc_edac_reg_offset { * @num_banks: Number of llcc banks * @ecc_irq: interrupt for llcc cache error detection and reporting * @ecc_irq_configured: 'True' if firmware has already configured the irq propagation - * @desc: Array pointer of pre-allocated LLCC slice descriptors * @version: Indicates the LLCC version + * @desc: Array pointer of pre-allocated LLCC slice descriptors */ struct llcc_drv_data { + struct device *dev; struct regmap **regmaps; struct regmap *bcast_regmap; struct regmap *bcast_and_regmap; @@ -183,7 +187,7 @@ struct llcc_drv_data { struct llcc_slice_desc *llcc_slice_getd(u32 uid); /** - * llcc_slice_putd - llcc slice descritpor + * llcc_slice_putd - llcc slice descriptor * @desc: Pointer to llcc slice descriptor */ void llcc_slice_putd(struct llcc_slice_desc *desc); |