opensbi.git/platform/generic/andes, branch v1.5

platform: generic: andes: Add support for RV32 to set up PMA

2024-06-18T10:49:47Z

Like PMP, the behaviors to configure PMA will be different from RV64 and RV32. RV64 uses two Andes custom CSRs, pmacfg0 and pmacfg2, but RV32 uses four Andes custom CSRs, pmacfg0 ~ pmacfg3. This patch adds support to PMA for RV32. Signed-off-by: Ben Zong-You Xie Reviewed-by: Anup Patel

platform: generic: andes: Refine Andes PMA related code

2024-06-18T10:45:22Z

This patch refines the Andes PMA related code. The main change is refactor andes_pma_[read|write]_cfg() and andes_pma_[read|write]_addr() into new functions andes_pma_[read|write]_num(). Also, fix some coding style problems. Signed-off-by: Ben Zong-You Xie Reviewed-by: Anup Patel

platform: andes: Change all occurrences of andes45 to andes

2024-05-09T12:27:51Z

To make the framework suit all Andes CPUs, change all occurrences of andes45 to andes. In addition, we fix some coding style problems and remove an unused macro in andes.h. Signed-off-by: Ben Zong-You Xie Reviewed-by: Anup Patel

platform: andes: Rename files with the prefix andes45

2024-05-09T12:26:50Z

Rename files with the prefix andes45 to andes. Signed-off-by: Ben Zong-You Xie Reviewed-by: Anup Patel

platform: andes: Drop andes_pmu_setup()

2024-03-04T04:50:46Z

andes_pmu_setup() [1] was intended to populate event mapping from hardcoded arrays, however, this increases firmware size and we should just use PMU DT node [2] instead. Link: https://lists.infradead.org/pipermail/opensbi/2023-November/006032.html [1] Link: https://github.com/riscv-software-src/opensbi/blob/v1.4/docs/pmu_support.md#example-3 [2] Signed-off-by: Yu Chien Peter Lin Reviewed-by: Anup Patel

lib: sbi: Allow ecall handlers to directly update register state

2023-12-19T10:26:37Z

Some of the upcoming SBI extensions (such as SSE) will directly update register state so improve the prototype of ecall handler to accommodate this. Further, this flexibility allows us to push the trap redirection from sbi_ecall_handler() to the sbi_ecall_legacy_handler(). Signed-off-by: Anup Patel

platform: andes: Factor out is_andes() helper

2023-12-06T12:33:12Z

We will need is_andes(45) in the following patch, so factor out the code that parses marchid to make it reusable for checking any Andes CPU variants. Also improves the comment in ae350_hart_start(). Signed-off-by: Yu Chien Peter Lin Reviewed-by: Anup Patel

platform: andes: Enable Andes PMU for AE350

2023-12-06T12:25:55Z

Enable Andes PMU extension support for AE350 platforms. Signed-off-by: Yu Chien Peter Lin Reviewed-by: Leo Yu-Chi Liang Reviewed-by: Atish Patra Reviewed-by: Lad Prabhakar Tested-by: Lad Prabhakar Reviewed-by: Anup Patel

platform: andes: Add Andes custom PMU support

2023-12-06T12:23:45Z

Before the ratification of Sscofpmf, the Andes PMU extension was designed to support the sampling and filtering with hardware performance counters (zihpm), it works with the current SBI PMU extension and Linux SBI PMU driver. We implement 1) the PMU device callbacks that update the corresponding bits on custom CSRs, 2) extentions_init() to detect the hardware support of Andes PMU and initialize the per-hart PMU related CSR, and 3) pmu_init() to register PMU device and populate event mappings. Also define a andes_pmu_setup() function which is in preparation for adding default PMU mappings in andes_hpm.h Signed-off-by: Yu Chien Peter Lin Reviewed-by: Leo Yu-Chi Liang Reviewed-by: Anup Patel

lib: sbi: Prefer hartindex over hartid in IPI framework

2023-09-24T06:09:38Z

Let us prefer hartindex over hartid in IPI framework which in-turn forces IPI users to also prefer hartindex. Signed-off-by: Anup Patel