On 17.06.2016 17:37, Alex Deucher wrote:
On Fri, Jun 17, 2016 at 11:31 AM, Nicolai Hähnle <nhaehnle@xxxxxxxxx> wrote:
On 17.06.2016 16:20, Alex Deucher wrote:
This was accidently broken for harvest cards when the
code was refactored for Polaris support.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 9ab28ca..e5c22cd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -459,7 +459,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev,
void *data, struct drm_file
dev_info.max_memory_clock = adev->pm.default_mclk
* 10;
}
dev_info.enabled_rb_pipes_mask =
adev->gfx.config.backend_enable_mask;
- dev_info.num_rb_pipes = adev->gfx.config.num_rbs;
+ dev_info.num_rb_pipes =
adev->gfx.config.max_backends_per_se;
At a glance, that looks suspicious to me. num_rb_pipes becomes rb_pipes in
libdrmm and then num_render_backends. We divide num_render_backends by the
number of SEs * SHs in radeonsi.
In a nutshell, radeonsi expects this to be the total number of RBs
(including disabled/harvested ones).
Right. that's what this patch does.
adev->gfx.config.max_backends_per_se is the total number of RBs per SE
available on the asic. adev->gfx.config.num_rbs is the total number of
enabled RBs (max - disabled). For non-harvest cards, they are the
same.
But the total number of RBs is different from the total number of RBs
per SE...
Nicolai
Alex
Nicolai
dev_info.num_hw_gfx_contexts =
adev->gfx.config.max_hw_contexts;
dev_info._pad = 0;
dev_info.ids_flags = 0;
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html