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From 143415159721cebfc5492521b1fe122c2736db5f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Wed, 26 Sep 2018 11:08:32 +0200
Subject: [PATCH 1236/2940] drm/amdgpu: send IVs to the KFD only after
processing them v3
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This allows us to filter out VM faults in the GMC code.
v2: don't filter out all faults
v3: fix copy&paste typo, send all IV to the KFD, don't change message level
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Chaudhary Amit Kumar <Chaudharyamit.Kumar@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 39 ++++++++++++-------------
1 file changed, 18 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index ddc88cf9069b..97ce4a356368 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -145,9 +145,6 @@ static void amdgpu_irq_callback(struct amdgpu_device *adev,
u32 ring_index = ih->rptr >> 2;
struct amdgpu_iv_entry entry;
- /* Before dispatching irq to IP blocks, send it to amdkfd */
- amdgpu_amdkfd_interrupt(adev, (const void *) &ih->ring[ring_index]);
-
entry.iv_entry = (const uint32_t *)&ih->ring[ring_index];
amdgpu_ih_decode_iv(adev, &entry);
@@ -402,37 +399,37 @@ void amdgpu_irq_dispatch(struct amdgpu_device *adev,
unsigned client_id = entry->client_id;
unsigned src_id = entry->src_id;
struct amdgpu_irq_src *src;
+ bool handled = false;
int r;
if (client_id >= AMDGPU_IRQ_CLIENTID_MAX) {
DRM_DEBUG("Invalid client_id in IV: %d\n", client_id);
- return;
- }
- if (src_id >= AMDGPU_MAX_IRQ_SRC_ID) {
+ } else if (src_id >= AMDGPU_MAX_IRQ_SRC_ID) {
DRM_DEBUG("Invalid src_id in IV: %d\n", src_id);
- return;
- }
- if (adev->irq.virq[src_id]) {
+ } else if (adev->irq.virq[src_id]) {
generic_handle_irq(irq_find_mapping(adev->irq.domain, src_id));
- } else {
- if (!adev->irq.client[client_id].sources) {
- DRM_DEBUG("Unregistered interrupt client_id: %d src_id: %d\n",
- client_id, src_id);
- return;
- }
- src = adev->irq.client[client_id].sources[src_id];
- if (!src) {
- DRM_DEBUG("Unhandled interrupt src_id: %d\n", src_id);
- return;
- }
+ } else if (!adev->irq.client[client_id].sources) {
+ DRM_DEBUG("Unregistered interrupt client_id: %d src_id: %d\n",
+ client_id, src_id);
+
+ } else if ((src = adev->irq.client[client_id].sources[src_id])) {
r = src->funcs->process(adev, src, entry);
- if (r)
+ if (r < 0)
DRM_ERROR("error processing interrupt (%d)\n", r);
+ else if (r)
+ handled = true;
+
+ } else {
+ DRM_DEBUG("Unhandled interrupt src_id: %d\n", src_id);
}
+
+ /* Send it to amdkfd as well if it isn't already handled */
+ if (!handled)
+ amdgpu_amdkfd_interrupt(adev, entry->iv_entry);
}
/**
--
2.17.1
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