Am 31.03.2017 um 03:07 schrieb Michel Dänzer:
On 30/03/17 10:09 PM, Alex Deucher wrote:
On Thu, Mar 30, 2017 at 2:39 AM, Michel Dänzer <michel@xxxxxxxxxxx> wrote:
On 29/03/17 09:55 PM, Christian König wrote:
From: Christian König <christian.koenig@xxxxxxx>
We will probably never see this combination.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 25 -------------------------
1 file changed, 25 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 7bf5ba7..524abca 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -538,31 +538,6 @@ static int amdgpu_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_
return -EINVAL;
mem->bus.base = adev->mc.aper_base;
mem->bus.is_iomem = true;
-#ifdef __alpha__
- /*
- * Alpha: use bus.addr to hold the ioremap() return,
- * so we can modify bus.base below.
- */
- if (mem->placement & TTM_PL_FLAG_WC)
- mem->bus.addr =
- ioremap_wc(mem->bus.base + mem->bus.offset,
- mem->bus.size);
- else
- mem->bus.addr =
- ioremap_nocache(mem->bus.base + mem->bus.offset,
- mem->bus.size);
- if (!mem->bus.addr)
- return -ENOMEM;
-
- /*
- * Alpha: Use just the bus offset plus
- * the hose/domain memory base for bus.base.
- * It then can be used to build PTEs for VRAM
- * access, as done in ttm_bo_vm_fault().
- */
- mem->bus.base = (mem->bus.base & 0x0ffffffffUL) +
- adev->ddev->hose->dense_mem_base;
-#endif
break;
default:
return -EINVAL;
Maybe leave an #error line, or make AMDGPU depend on !ALPHA in Kconfig,
to prevent somebody from trying this driver on an Alpha machine, and it
mysteriously failing due to the lack of this?
Either way,
Acked-by: Michel Dänzer <michel.daenzer@xxxxxxx>
Does this code even work on alpha (or compile for that matter)?
If it doesn't compile, that makes it obvious to somebody who tries
compiling it on Alpha that there's something wrong. Whereas if we just
remove it, the driver might build but probably won't work.
According to Wikipedia the last Alpha was build in 2004, the first GCN 1
hardware we support shipped in 2014.
That's a decade between those and I have strong doubts that any Alpha
board has physically PCIe compatible slots.
Anyway, I will just add a !ALPHA to Kconfig.
Christian.
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