[PATCH] drm/amdgpu: tolerate allocating GTT bo with dcc flag

[Zhang, Hawking]

[AMD Official Use Only - AMD Internal Distribution Only]

Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>

Regards,
Hawking

-----Original Message-----
From: Min, Frank <Frank.Min at amd.com>
Sent: Thursday, June 6, 2024 16:11
To: amd-gfx at lists.freedesktop.org
Cc: Koenig, Christian <Christian.Koenig at amd.com>; Deucher, Alexander <Alexander.Deucher at amd.com>; Zhang, Hawking <Hawking.Zhang at amd.com>
Subject: [PATCH] drm/amdgpu: tolerate allocating GTT bo with dcc flag

[AMD Official Use Only - AMD Internal Distribution Only]

From: Frank Min <Frank.Min at amd.com>

Do not return failure for allocating GTT bo with dcc flag on gfx12. This will improve compatibility for UMD.

Signed-off-by: Frank Min <Frank.Min at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 9041c63cabb0..58186de61403 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -409,11 +409,6 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
        if (args->in.domains & ~AMDGPU_GEM_DOMAIN_MASK)
                return -EINVAL;

-       if ((flags & AMDGPU_GEM_CREATE_GFX12_DCC) &&
-           ((amdgpu_ip_version(adev, GC_HWIP, 0) < IP_VERSION(12, 0, 0)) ||
-            !(args->in.domains & AMDGPU_GEM_DOMAIN_VRAM)))
-               return -EINVAL;
-
        if (!amdgpu_is_tmz(adev) && (flags & AMDGPU_GEM_CREATE_ENCRYPTED)) {
                DRM_NOTE_ONCE("Cannot allocate secure buffer since TMZ is disabled\n");
                return -EINVAL;
--
2.34.1