From 071bba962456a46b261fcefe26bd533cbc059ea2 Mon Sep 17 00:00:00 2001 From: Lijo Lazar Date: Fri, 10 Oct 2025 17:23:33 +0530 Subject: drm/amdgpu: Reserve discovery TMR only if needed For legacy SOCs, discovery binary is sideloaded. Instead of checking for binary blob, use a flag to determine if discovery region needs to be reserved. Signed-off-by: Lijo Lazar Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index a10b2982ca7a..0bd02234eca0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1769,18 +1769,14 @@ static int amdgpu_ttm_reserve_tmr(struct amdgpu_device *adev) ctx->init = PSP_MEM_TRAIN_RESERVE_SUCCESS; } - if (!adev->gmc.is_app_apu) { - ret = amdgpu_bo_create_kernel_at( - adev, adev->gmc.real_vram_size - reserve_size, - reserve_size, &adev->mman.fw_reserved_memory, NULL); - if (ret) { - dev_err(adev->dev, "alloc tmr failed(%d)!\n", ret); - amdgpu_bo_free_kernel(&adev->mman.fw_reserved_memory, - NULL, NULL); - return ret; - } - } else { - DRM_DEBUG_DRIVER("backdoor fw loading path for PSP TMR, no reservation needed\n"); + ret = amdgpu_bo_create_kernel_at( + adev, adev->gmc.real_vram_size - reserve_size, reserve_size, + &adev->mman.fw_reserved_memory, NULL); + if (ret) { + dev_err(adev->dev, "alloc tmr failed(%d)!\n", ret); + amdgpu_bo_free_kernel(&adev->mman.fw_reserved_memory, NULL, + NULL); + return ret; } return 0; @@ -1957,7 +1953,7 @@ int amdgpu_ttm_init(struct amdgpu_device *adev) * If IP discovery enabled, a block of memory should be * reserved for IP discovey. */ - if (adev->discovery.bin) { + if (adev->discovery.reserve_tmr) { r = amdgpu_ttm_reserve_tmr(adev); if (r) return r; -- cgit v1.2.3