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[AMD Public Use]<br>
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This seems kind of complicated and error prone.  I didn't realize the extent to the changes required.  I think it would be better to either add arcturus specific versions of these functions or just go with your original approach and add a new arcturus_ih.c. 
 If you go with the second route however, no need to show all your intermediate steps, just add the new files in one commit.</div>
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Alex</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Alex Sierra <alex.sierra@amd.com><br>
<b>Sent:</b> Thursday, March 19, 2020 8:22 PM<br>
<b>To:</b> amd-gfx@lists.freedesktop.org <amd-gfx@lists.freedesktop.org><br>
<b>Cc:</b> Sierra Guiza, Alejandro (Alex) <Alex.Sierra@amd.com><br>
<b>Subject:</b> [PATCH 1/4] drm/amdgpu: add stride to calculate oss ring offsets</font>
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<div class="PlainText">Arcturus and vega10 share the same vega10_ih, however both<br>
have different register offsets at the ih ring section.<br>
This variable is used to help calculate ih ring register addresses<br>
from the osssys, that corresponds to the current asic type.<br>
<br>
Signed-off-by: Alex Sierra <alex.sierra@amd.com><br>
---<br>
 drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 4 ++++<br>
 drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h | 1 +<br>
 2 files changed, 5 insertions(+)<br>
<br>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c<br>
index 5ed4227f304b..fa384ae9a9bc 100644<br>
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c<br>
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c<br>
@@ -279,6 +279,10 @@ int amdgpu_irq_init(struct amdgpu_device *adev)<br>
                                 amdgpu_hotplug_work_func);<br>
         }<br>
 <br>
+       if (adev->asic_type == CHIP_ARCTURUS)<br>
+               adev->irq.ring_stride = 1;<br>
+       else<br>
+               adev->irq.ring_stride = 0;<br>
         INIT_WORK(&adev->irq.ih1_work, amdgpu_irq_handle_ih1);<br>
         INIT_WORK(&adev->irq.ih2_work, amdgpu_irq_handle_ih2);<br>
 <br>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h<br>
index c718e94a55c9..1ec5b735cd9e 100644<br>
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h<br>
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h<br>
@@ -97,6 +97,7 @@ struct amdgpu_irq {<br>
         struct irq_domain               *domain; /* GPU irq controller domain */<br>
         unsigned                        virq[AMDGPU_MAX_IRQ_SRC_ID];<br>
         uint32_t                        srbm_soft_reset;<br>
+       unsigned                        ring_stride;<br>
 };<br>
 <br>
 void amdgpu_irq_disable_all(struct amdgpu_device *adev);<br>
-- <br>
2.17.1<br>
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