Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
________________________________
From: amd-gfx <amd-gfx-boun...@lists.freedesktop.org> on behalf of Yuan,
Xiaojie <xiaojie.y...@amd.com>
Sent: Wednesday, August 21, 2019 9:52 AM
To: amd-gfx@lists.freedesktop.org <amd-gfx@lists.freedesktop.org>
Cc: alexdeuc...@gmail.com <alexdeuc...@gmail.com>; Xiao, Jack
<jack.x...@amd.com>; Yuan, Xiaojie <xiaojie.y...@amd.com>; Zhang, Hawking
<hawking.zh...@amd.com>
Subject: [PATCH] drm/amdgpu/sdma5: fix number of sdma5 trap irq types for navi1x
v2: set num_types based on num_instances
navi1x has 2 sdma engines but commit
"e7b58d03b678 drm/amdgpu: reorganize sdma v4 code to support more instances"
changes the max number of sdma irq types (AMDGPU_SDMA_IRQ_LAST) from 2 to 8
which causes amdgpu_irq_gpu_reset_resume_helper() to recover irq of sdma
engines with following logic:
(enable irq for sdma0) * 1 time
(enable irq for sdma1) * 1 time
(disable irq for sdma1) * 6 times
as a result, after gpu reset, interrupt for sdma1 is lost.
Signed-off-by: Xiaojie Yuan <xiaojie.y...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
index 41932d8b88c3..89174e778d2f 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
@@ -1625,7 +1625,8 @@ static const struct amdgpu_irq_src_funcs
sdma_v5_0_illegal_inst_irq_funcs = {
static void sdma_v5_0_set_irq_funcs(struct amdgpu_device *adev)
{
- adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST;
+ adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_INSTANCE0 +
+ adev->sdma.num_instances;
adev->sdma.trap_irq.funcs = &sdma_v5_0_trap_irq_funcs;
adev->sdma.illegal_inst_irq.funcs = &sdma_v5_0_illegal_inst_irq_funcs;
}
--
2.20.1
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