From 4a75aefe3feb99ff87c1ea594b4db377b98f50e8 Mon Sep 17 00:00:00 2001
From: Andres Rodriguez <andresx7@gmail.com>
Date: Tue, 26 Sep 2017 12:22:46 -0400
Subject: drm/amdgpu: add option for force enable multipipe policy for compute
Useful for testing the effects of multipipe compute without recompiling.
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c')
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index 3930fcc3e344..83435ccbad44 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -111,6 +111,12 @@ void amdgpu_gfx_parse_disable_cu(unsigned *mask, unsigned max_se, unsigned max_s
static bool amdgpu_gfx_is_multipipe_capable(struct amdgpu_device *adev)
{
+ if (amdgpu_compute_multipipe != -1) {
+ DRM_INFO("amdgpu: forcing compute pipe policy %d\n",
+ amdgpu_compute_multipipe);
+ return amdgpu_compute_multipipe == 1;
+ }
+
/* FIXME: spreading the queues across pipes causes perf regressions
* on POLARIS11 compute workloads */
if (adev->asic_type == CHIP_POLARIS11)
--
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