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drm/amdgpu/mes: warn on unexpected pipe numbers

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Warn if the number of pipes exceeds what the MES supports.

Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2025-03-20 10:18:58 -04:00
parent 9e2bbba1d5
commit b6f190e623
1 changed files with 19 additions and 4 deletions
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23
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
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@ -90,7 +90,7 @@ static void amdgpu_mes_doorbell_free(struct amdgpu_device *adev)
int amdgpu_mes_init(struct amdgpu_device *adev)
{
int i, r;
int i, r, num_pipes;
adev->mes.adev = adev;
@ -108,8 +108,13 @@ int amdgpu_mes_init(struct amdgpu_device *adev)
adev->mes.vmid_mask_mmhub = 0xffffff00;
adev->mes.vmid_mask_gfxhub = 0xffffff00;
num_pipes = adev->gfx.me.num_pipe_per_me * adev->gfx.me.num_me;
if (num_pipes > AMDGPU_MES_MAX_GFX_PIPES)
dev_warn(adev->dev, "more gfx pipes than supported by MES! (%d vs %d)\n",
num_pipes, AMDGPU_MES_MAX_GFX_PIPES);
for (i = 0; i < AMDGPU_MES_MAX_GFX_PIPES; i++) {
if (i >= adev->gfx.me.num_pipe_per_me * adev->gfx.me.num_me)
if (i >= num_pipes)
break;
if (amdgpu_ip_version(adev, GC_HWIP, 0) >=
IP_VERSION(12, 0, 0))
@ -129,14 +134,24 @@ int amdgpu_mes_init(struct amdgpu_device *adev)
adev->mes.gfx_hqd_mask[i] = 0x2;
}
num_pipes = adev->gfx.mec.num_pipe_per_mec * adev->gfx.mec.num_mec;
if (num_pipes > AMDGPU_MES_MAX_COMPUTE_PIPES)
dev_warn(adev->dev, "more compute pipes than supported by MES! (%d vs %d)\n",
num_pipes, AMDGPU_MES_MAX_COMPUTE_PIPES);
for (i = 0; i < AMDGPU_MES_MAX_COMPUTE_PIPES; i++) {
if (i >= (adev->gfx.mec.num_pipe_per_mec * adev->gfx.mec.num_mec))
if (i >= num_pipes)
break;
adev->mes.compute_hqd_mask[i] = 0xc;
}
num_pipes = adev->sdma.num_instances;
if (num_pipes > AMDGPU_MES_MAX_SDMA_PIPES)
dev_warn(adev->dev, "more SDMA pipes than supported by MES! (%d vs %d)\n",
num_pipes, AMDGPU_MES_MAX_SDMA_PIPES);
for (i = 0; i < AMDGPU_MES_MAX_SDMA_PIPES; i++) {
if (i >= adev->sdma.num_instances)
if (i >= num_pipes)
break;
adev->mes.sdma_hqd_mask[i] = 0xfc;
}