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drm/amdgpu: Enable chained IB MCBP support

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Support for MCBP/Virtualization in combination with chained IBs is
formal released on firmware feature version #46. So enable it
according to firmware feature version, otherwise, world switch will
hang.

Signed-off-by: Trigger Huang <trigger.huang@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Trigger Huang 2017-04-27 03:09:31 -04:00 committed by Alex Deucher
parent fe723cd3bf
commit 63a7c7487f
1 changed files with 11 additions and 6 deletions
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17
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
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@ -941,12 +941,6 @@ static int gfx_v8_0_init_microcode(struct amdgpu_device *adev)
cp_hdr = (const struct gfx_firmware_header_v1_0 *)adev->gfx.me_fw->data;
adev->gfx.me_fw_version = le32_to_cpu(cp_hdr->header.ucode_version);
/* chain ib ucode isn't formal released, just disable it by far
* TODO: when ucod ready we should use ucode version to judge if
* chain-ib support or not.
*/
adev->virt.chained_ib_support = false;
adev->gfx.me_feature_version = le32_to_cpu(cp_hdr->ucode_feature_version);
snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ce.bin", chip_name);
@ -960,6 +954,17 @@ static int gfx_v8_0_init_microcode(struct amdgpu_device *adev)
adev->gfx.ce_fw_version = le32_to_cpu(cp_hdr->header.ucode_version);
adev->gfx.ce_feature_version = le32_to_cpu(cp_hdr->ucode_feature_version);
/*
* Support for MCBP/Virtualization in combination with chained IBs is
* formal released on feature version #46
*/
if (adev->gfx.ce_feature_version >= 46 &&
adev->gfx.pfp_feature_version >= 46) {
adev->virt.chained_ib_support = true;
DRM_INFO("Chained IB support enabled!\n");
} else
adev->virt.chained_ib_support = false;
snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_rlc.bin", chip_name);
err = request_firmware(&adev->gfx.rlc_fw, fw_name, adev->dev);
if (err)