[PATCH AUTOSEL 6.6 15/18] drm/amdgpu: silence UBSAN warning

[PATCH AUTOSEL 6.6 15/18] drm/amdgpu: silence UBSAN warning

[Sasha Levin]

From: Alex Deucher <alexander.deucher@amd.com>

[ Upstream commit 05d9e24ddb15160164ba6e917a88c00907dc2434 ]

Convert a variable sized array from [1] to [].

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/include/atomfirmware.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/include/atomfirmware.h b/drivers/gpu/drm/amd/include/atomfirmware.h
index fa7d6ced786f1..06be085515200 100644
--- a/drivers/gpu/drm/amd/include/atomfirmware.h
+++ b/drivers/gpu/drm/amd/include/atomfirmware.h
@@ -3508,7 +3508,7 @@ struct atom_gpio_voltage_object_v4
    uint8_t  phase_delay_us;                      // phase delay in unit of micro second
    uint8_t  reserved;   
    uint32_t gpio_mask_val;                         // GPIO Mask value
-   struct atom_voltage_gpio_map_lut voltage_gpio_lut[1];
+   struct atom_voltage_gpio_map_lut voltage_gpio_lut[] __counted_by(gpio_entry_num);
 };
 
 struct  atom_svid2_voltage_object_v4
-- 
2.43.0

[PATCH AUTOSEL 6.6 16/18] drm/amdgpu: fix dereference null return value for the function amdgpu_vm_pt_parent

[Sasha Levin]

From: Jesse Zhang <jesse.zhang@amd.com>

[ Upstream commit a0cf36546cc24ae1c95d72253c7795d4d2fc77aa ]

The pointer parent may be NULLed by the function amdgpu_vm_pt_parent.
To make the code more robust, check the pointer parent.

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
index 0d51222f6f8eb..026a3db947298 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
@@ -766,11 +766,15 @@ int amdgpu_vm_pde_update(struct amdgpu_vm_update_params *params,
 			 struct amdgpu_vm_bo_base *entry)
 {
 	struct amdgpu_vm_bo_base *parent = amdgpu_vm_pt_parent(entry);
-	struct amdgpu_bo *bo = parent->bo, *pbo;
+	struct amdgpu_bo *bo, *pbo;
 	struct amdgpu_vm *vm = params->vm;
 	uint64_t pde, pt, flags;
 	unsigned int level;
 
+	if (WARN_ON(!parent))
+		return -EINVAL;
+
+	bo = parent->bo;
 	for (level = 0, pbo = bo->parent; pbo; ++level)
 		pbo = pbo->parent;
 
-- 
2.43.0

[PATCH AUTOSEL 6.6 17/18] Revert "drm/amdkfd: fix gfx_target_version for certain 11.0.3 devices"

[Sasha Levin]

From: Alex Deucher <alexander.deucher@amd.com>

[ Upstream commit dd2b75fd9a79bf418e088656822af06fc253dbe3 ]

This reverts commit 28ebbb4981cb1fad12e0b1227dbecc88810b1ee8.

Revert this commit as apparently the LLVM code to take advantage of
this never landed.

Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Feifei Xu <feifei.xu@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 913c70a0ef44f..0c94bdfadaabf 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -402,15 +402,8 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf)
 			f2g = &gfx_v11_kfd2kgd;
 			break;
 		case IP_VERSION(11, 0, 3):
-			if ((adev->pdev->device == 0x7460 &&
-			     adev->pdev->revision == 0x00) ||
-			    (adev->pdev->device == 0x7461 &&
-			     adev->pdev->revision == 0x00))
-				/* Note: Compiler version is 11.0.5 while HW version is 11.0.3 */
-				gfx_target_version = 110005;
-			else
-				/* Note: Compiler version is 11.0.1 while HW version is 11.0.3 */
-				gfx_target_version = 110001;
+			/* Note: Compiler version is 11.0.1 while HW version is 11.0.3 */
+			gfx_target_version = 110001;
 			f2g = &gfx_v11_kfd2kgd;
 			break;
 		default:
-- 
2.43.0