[PATCH] drm/amdgpu: Bypass asd if display hw is not available

[Feng, Kenneth]

[AMD Official Use Only - General]

Reviewed-by: Kenneth Feng <kenneth.feng at amd.com>


-----Original Message-----
From: Hawking Zhang <Hawking.Zhang at amd.com>
Sent: Sunday, March 31, 2024 1:02 PM
To: amd-gfx at lists.freedesktop.org; Deucher, Alexander <Alexander.Deucher at amd.com>; Feng, Kenneth <Kenneth.Feng at amd.com>
Cc: Zhang, Hawking <Hawking.Zhang at amd.com>
Subject: [PATCH] drm/amdgpu: Bypass asd if display hw is not available

ASD is not needed by headless GPU.

Signed-off-by: Hawking Zhang <Hawking.Zhang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 94b310fdb719d..83bf86352267d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -1053,6 +1053,11 @@ static int psp_asd_initialize(struct psp_context *psp)
        if (amdgpu_sriov_vf(psp->adev) || !psp->asd_context.bin_desc.size_bytes)
                return 0;

+       /* bypass asd if display hardware is not available */
+       if (!amdgpu_device_has_display_hardware(psp->adev) &&
+           amdgpu_ip_version(psp->adev, MP0_HWIP, 0) >= IP_VERSION(13, 0, 10))
+               return 0;
+
        psp->asd_context.mem_context.shared_mc_addr  = 0;
        psp->asd_context.mem_context.shared_mem_size = PSP_ASD_SHARED_MEM_SIZE;
        psp->asd_context.ta_load_type                = GFX_CMD_ID_LOAD_ASD;
--
2.17.1