Without this change amdgpu_ttm_training_data_block_init tries to allocate at the end of the real amount of RAM, which then fails like this if amdgpu.vramlimit=XXXX is used: [drm:amdgpu_ttm_init [amdgpu]] *ERROR* alloc c2p_bo failed(-12)! [drm:amdgpu_device_init.cold [amdgpu]] *ERROR* sw_init of IP block <gmc_v10_0> failed -12 amdgpu: amdgpu_device_ip_init failed amdgpu: Fatal error during GPU init Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index be0efaae79a9..952e99e6d07e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1621,9 +1621,9 @@ static void amdgpu_ttm_training_data_block_init(struct amdgpu_device *adev) memset(ctx, 0, sizeof(*ctx)); ctx->c2p_train_data_offset = - ALIGN((adev->gmc.mc_vram_size - adev->mman.discovery_tmr_size - SZ_1M), SZ_1M); + ALIGN((adev->gmc.real_vram_size - adev->mman.discovery_tmr_size - SZ_1M), SZ_1M); ctx->p2c_train_data_offset = - (adev->gmc.mc_vram_size - GDDR6_MEM_TRAINING_OFFSET); + (adev->gmc.real_vram_size - GDDR6_MEM_TRAINING_OFFSET); ctx->train_data_size = GDDR6_MEM_TRAINING_DATA_SIZE_IN_BYTES; base-commit: a81bcfc756bcaa9e8bb46262f910504fa5290aab -- 2.36.1
