[PATCH] drm/amdgpu: skip huge page for PRT mapping

[Zhou, David(ChunMing)]

Good catch, Reviewed-by: Chunming  Zhou <david1.zhou at amd.com>

-----Original Message-----
From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf Of Junwei Zhang
Sent: Monday, June 04, 2018 10:04 AM
To: amd-gfx at lists.freedesktop.org
Cc: Zhang, Jerry <Jerry.Zhang at amd.com>
Subject: [PATCH] drm/amdgpu: skip huge page for PRT mapping

PRT mapping doesn't support huge page, since it's per PTE basis.

Signed-off-by: Junwei Zhang <Jerry.Zhang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 850cd66..4ce8bb0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1111,7 +1111,8 @@ static void amdgpu_vm_handle_huge_pages(struct amdgpu_pte_update_params *p,
 
 	/* In the case of a mixed PT the PDE must point to it*/
 	if (p->adev->asic_type >= CHIP_VEGA10 && !p->src &&
-	    nptes == AMDGPU_VM_PTE_COUNT(p->adev)) {
+	    nptes == AMDGPU_VM_PTE_COUNT(p->adev) &&
+	    !(flags & AMDGPU_PTE_PRT)) {
 		/* Set the huge page flag to stop scanning at this PDE */
 		flags |= AMDGPU_PDE_PTE;
 	}
-- 
1.9.1

_______________________________________________
amd-gfx mailing list
amd-gfx at lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx