kernel/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.h, branch linux-rolling-stable

drm/amdgpu: Remove volatile from RLC files

2025-09-15T20:51:09Z

The RLC uses volatile with some pointers that are not directly related to any of the situations where volatile is advised to be used [1]. For this reason, this commit removes all the volatile occurrences associated with RLC. 1. https://docs.kernel.org/process/volatile-considered-harmful.html Reviewed-by: Christian König Signed-off-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amdgpu: Remove volatile from CSB functions

2025-09-15T20:51:04Z

The CSB buffer manipulation occurs in memory where the BO is mapped during initialization, and some references to this buffer are handled with volatile, which is incorrect in this scenario. There are a few cases where the use of volatile is accepted, but none of them align with CSB operations. Therefore, this commit removes all the volatile variables associated with the CSB code. Reviewed-by: Christian König Signed-off-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amdgpu: Add documentation associated with CSB

2025-04-30T22:05:41Z

Add a description for the get_csb_buffer callback, update the glossary, and add some extra information about RB, which is associated with CSB configuration. Signed-off-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amdgpu: add rlc TOC header file for soc24

2024-05-02T20:18:10Z

Add RLC autoload TOC header file for soc24 ASIC. Signed-off-by: Likun Gao Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu: add new TOC structure

2024-05-02T20:18:10Z

Add new RLC_TABLE_OF_CONTENT structure definition. Signed-off-by: Likun Gao Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amd/amdgpu: Update RLC_SPM_MC_CNT by ring wreg in guest

2024-01-18T20:45:58Z

Submit command of wreg in GFX and COMPUTE ring to update RLC_SPM_MC_CNT in guest machine during runtime. Signed-off-by: YuanShang Reviewed-by: Emily Deng Signed-off-by: Alex Deucher

drm/amdgpu: Add RLCG interface driver implementation for gfx v9.4.3 (v3)

2023-07-18T15:16:41Z

Add RLCG interface support for gfx v9.4.3 and multiple XCCs. Do not enable it yet. v2: Fix amdgpu_rlcg_reg_access_ctrl init, add support for multiple XCCs in amdgpu_mm_wreg_mmio_rlc v3: Use GET_INST() when indexing amdgpu_rlcg_reg_access_ctrl Signed-off-by: Victor Lu Reviewed-by: Zhigang Luo Signed-off-by: Alex Deucher

drm/amdgpu: add xcc index argument to rlc safe_mode func (v4)

2023-04-18T20:28:55Z

v1: To support multple XCD case (Le) v2: unify naming style (Le) v3: apply the changes to gc v11_0 (Hawking) v4: apply the changes to gc SOC21 (Morris) Signed-off-by: Le Ma Reviewed-by: Hawking Zhang Signed-off-by: Hawking Zhang Signed-off-by: Morris Zhang Signed-off-by: Alex Deucher

drm/amdgpu: add helper to init rlc firmware

2022-09-30T20:59:00Z

To initialzie rlc firmware according to rlc firmware header version v2: squash in backwards compat fix Signed-off-by: Hawking Zhang Acked-by: Christian König Signed-off-by: Alex Deucher

drm/amd/amdgpu: add TAP_DELAYS upload support for gfx10

2022-07-25T13:31:04Z

Support {GLOBAL/SE0/SE1/SE2/SE3}_TAP_DELAYS uploading. v2: upload TAP_DELAYS before RLC autoload was triggered. (Hawking) Signed-off-by: Chengming Gui Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher