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drm/amdgpu: use the TTM dummy page instead of allocating one

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We have a global dummy page in TTM, use that one instead of allocating a
new one.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2018-02-22 08:35:11 +01:00
committed by Alex Deucher
parent a02497b732
commit 92e71b0676
13 changed files with 30 additions and 41 deletions
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2
drivers/gpu/drm/amd/amdgpu/cz_ih.c
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@@ -111,7 +111,7 @@ static int cz_ih_irq_init(struct amdgpu_device *adev)
cz_ih_disable_interrupts(adev);
/* setup interrupt control */
WREG32(mmINTERRUPT_CNTL2, adev->dummy_page.addr >> 8);
WREG32(mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
interrupt_cntl = RREG32(mmINTERRUPT_CNTL);
/* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN