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1d234eeafc
Most modern Qualcomm platforms (>= SM8150) expose information about the DDR memory present on the system via SMEM. Details from this information is used in various scenarios, such as multimedia drivers configuring the hardware based on the "Highest Bank address Bit" (hbb), or the list of valid frequencies in validation scenarios... Add support for parsing v3-v7 version of the structs. Unforunately, they are not versioned, so some elbow grease is necessary to determine which one is present. See for reference: ver 3:1d11897d2cver 4:f6e9aa5492ver 5:617d3297abver 5 with 6regions:d770e009f9ver 6:62659b557fver 7:734d95599cReviewed-by: Bjorn Andersson <andersson@kernel.org> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Link:1d11897d2cLink: https://lore.kernel.org/r/20260727-topic-smem_dramc-v5-2-66188b3e338d@oss.qualcomm.com Signed-off-by: Bjorn Andersson <andersson@kernel.org>
13 lines
331 B
C
13 lines
331 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __QCOM_SMEM_INTERNAL__
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#define __QCOM_SMEM_INTERNAL__
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#include <linux/device.h>
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struct qcom_smem;
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struct dentry *smem_dram_parse(struct qcom_smem *smem, struct device *dev);
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void *__qcom_smem_get(struct qcom_smem *smem, unsigned int host, unsigned int item, size_t *size);
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#endif
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