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drm/amdgpu: Set correct DMA mask for aldebaran

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Aldebaran has 48-bit physical address support

Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Harish Kasiviswanathan 2022-02-20 17:46:49 -05:00 committed by Alex Deucher
parent 9e08564727
commit 24bf9fd197
1 changed files with 4 additions and 3 deletions
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7
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
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@ -1553,7 +1553,7 @@ static void gmc_v9_0_save_registers(struct amdgpu_device *adev)
static int gmc_v9_0_sw_init(void *handle)
{
int r, vram_width = 0, vram_type = 0, vram_vendor = 0;
int r, vram_width = 0, vram_type = 0, vram_vendor = 0, dma_addr_bits;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
adev->gfxhub.funcs->init(adev);
@ -1669,12 +1669,13 @@ static int gmc_v9_0_sw_init(void *handle)
*/
adev->gmc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */
r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(44));
dma_addr_bits = adev->ip_versions[GC_HWIP][0] == IP_VERSION(9, 4, 2) ? 48:44;
r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(dma_addr_bits));
if (r) {
printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
return r;
}
adev->need_swiotlb = drm_need_swiotlb(44);
adev->need_swiotlb = drm_need_swiotlb(dma_addr_bits);
r = gmc_v9_0_mc_init(adev);
if (r)