linux/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c, branch v6.8

drm/amdgpu: Fix with right return code '-EIO' in 'amdgpu_gmc_vram_checking()'

2024-01-15T23:31:59Z

The amdgpu_gmc_vram_checking() function in emulation checks whether all of the memory range of shared system memory could be accessed by GPU, from this aspect, -EIO is returned for error scenarios. Fixes the below: drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c:919 gmc_v6_0_hw_init() warn: missing error code? 'r' drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c:1103 gmc_v7_0_hw_init() warn: missing error code? 'r' drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c:1223 gmc_v8_0_hw_init() warn: missing error code? 'r' drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:2344 gmc_v9_0_hw_init() warn: missing error code? 'r' Cc: Xiaojian Du Cc: Lijo Lazar Cc: Christian König Cc: Alex Deucher Signed-off-by: Srinivasan Shanmugam Suggested-by: Christian König Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: fix AGP addressing when GART is not at 0

2023-11-29T21:49:22Z

This worked by luck if the GART aperture ended up at 0. When we ended up moving GART on some chips, the GART aperture ended up offsetting the AGP address since the resource->start is a GART offset, not an MC address. Fix this by moving the AGP address setup into amdgpu_bo_gpu_offset_no_check(). v2: check mem_type before checking agp v3: check if the ttm bo has a ttm_tt allocated yet Fixes: 67318cb84341 ("drm/amdgpu/gmc11: set gart placement GC11") Tested-by: Mario Limonciello Reported-by: Jesse Zhang Reported-by: Yifan Zhang Reviewed-by: Christian König Signed-off-by: Alex Deucher Cc: christian.koenig@amd.com Cc: mario.limonciello@amd.com

drm/amd: Disable XNACK on SRIOV environment

2023-11-07T16:15:37Z

The purpose of this patch is to disable XNACK or set XNACK OFF mode on SRIOV platform which doesn't support it. This will prevent user-space application to fail or result into unexpected behaviour whenever the application need to run test-case in XNACK ON mode. Signed-off-by: Surbhi Kakarya Reviewed-by: Shaoyun Liu Signed-off-by: Alex Deucher

drm/amdgpu: add tmz support for GC IP v11.5.0

2023-10-26T22:41:21Z

Add tmz support for GC 11.5.0. Signed-off-by: Jiadong Zhu Reviewed-by: Yifan Zhang Signed-off-by: Alex Deucher

drm/amdgpu: Address member 'gart_placement' not described in 'amdgpu_gmc_gart_location'

2023-10-13T14:58:22Z

Fixes the below: drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c:274: warning: Function parameter or member 'gart_placement' not described in 'amdgpu_gmc_gart_location' Cc: Christian König Cc: Alex Deucher Cc: "Pan, Xinhui" Signed-off-by: Srinivasan Shanmugam Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu/gmc: add a way to force a particular placement for GART

2023-10-04T22:36:07Z

We normally place GART based on the location of VRAM and the available address space around that, but provide an option to force a particular location for hardware that needs it. v2: Switch to passing the placement via parameter Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu/gmc: set a default disable value for AGP

2023-09-26T21:00:22Z

To disable AGP, the start needs to be set to a higher value than the end. Set a default disable value for the AGP aperture and allow the IP specific GMC code to enable it selectively be calling amdgpu_gmc_agp_location(). Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: further move TLB hw workarounds a layer up

2023-09-26T20:55:09Z

For the PASID flushing we already handled that at a higher layer, apply those workarounds to the standard flush as well. Signed-off-by: Christian König Reviewed-by: Alex Deucher Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: rework lock handling for flush_tlb v2

2023-09-26T20:55:09Z

Instead of each implementation doing this more or less correctly move taking the reset lock at a higher level. v2: fix typo Signed-off-by: Christian König Reviewed-by: Alex Deucher Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: drop error return from flush_gpu_tlb_pasid

2023-09-26T20:55:09Z

That function never fails, drop the error return. Signed-off-by: Christian König Reviewed-by: Alex Deucher Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher