[PATCH 19/23] drm/amdgpu/mxgpu: add implementation of GPU virtualization of VI
Alex Deucher
alexdeucher at gmail.com
Mon Dec 19 23:34:53 UTC 2016
On Sat, Dec 17, 2016 at 11:16 AM, Xiangliang Yu <Xiangliang.Yu at amd.com> wrote:
> Different chips will have different virtual behaviors, so need to
> implemnt different virtual feature according to hardware design.
>
> This patch will implemnt Vi family virtualization, it will call
> CSA, mailbox interface and allocate wb offset for KIQ.
>
> Signed-off-by: Xiangliang Yu <Xiangliang.Yu at amd.com>
> ---
> drivers/gpu/drm/amd/mxgpu/amd_mxgpu.h | 2 +
> drivers/gpu/drm/amd/mxgpu/mxgpu_vi.c | 205 ++++++++++++++++++++++++++++++++++
> 2 files changed, 207 insertions(+)
> create mode 100644 drivers/gpu/drm/amd/mxgpu/mxgpu_vi.c
>
> diff --git a/drivers/gpu/drm/amd/mxgpu/amd_mxgpu.h b/drivers/gpu/drm/amd/mxgpu/amd_mxgpu.h
> index 54e7b31..02a8839 100644
> --- a/drivers/gpu/drm/amd/mxgpu/amd_mxgpu.h
> +++ b/drivers/gpu/drm/amd/mxgpu/amd_mxgpu.h
> @@ -88,4 +88,6 @@ extern void xgpu_destroy_csa(struct amd_xgpu_csa *csa);
>
> extern int xgpu_request_full_gpu_access(struct amdgpu_device *adev, bool init);
> extern int xgpu_release_full_gpu_access(struct amdgpu_device *adev, bool init);
> +
> +extern void xgpu_vi_add_ip_blocks(struct amdgpu_device *adev);
> #endif
> diff --git a/drivers/gpu/drm/amd/mxgpu/mxgpu_vi.c b/drivers/gpu/drm/amd/mxgpu/mxgpu_vi.c
> new file mode 100644
> index 0000000..e5d517f
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/mxgpu/mxgpu_vi.c
> @@ -0,0 +1,205 @@
> +/*
> + * Copyright 2016 Advanced Micro Devices, Inc.
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the "Software"),
> + * to deal in the Software without restriction, including without limitation
> + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + * Author: Xiangliang.Yu at amd.com
> + */
> +#include "amd_mxgpu.h"
> +#include "vi.h"
> +#include "gmc_v8_0.h"
> +#include "gfx_v8_0.h"
> +#include "sdma_v3_0.h"
> +#include "tonga_ih.h"
> +#include "gmc/gmc_8_2_d.h"
> +#include "gmc/gmc_8_2_sh_mask.h"
> +#include "oss/oss_3_0_d.h"
> +#include "oss/oss_3_0_sh_mask.h"
> +#include "bif/bif_5_0_d.h"
> +#include "bif/bif_5_0_sh_mask.h"
> +#include "amdgpu_powerplay.h"
> +#include "dce_virtual.h"
> +#include "gca/gfx_8_0_d.h"
> +#include "gca/gfx_8_0_enum.h"
> +#include "gca/gfx_8_0_sh_mask.h"
> +#include "dce/dce_10_0_d.h"
> +#include "dce/dce_10_0_sh_mask.h"
> +#include "smu/smu_7_1_3_d.h"
You don't need all of these register headers. there aren't even any
registers used in this code.
> +
> +static int xgpu_vi_early_init(void *handle)
> +{
> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
> + int r;
> +
> + r = amd_xgpu_alloc(adev);
> + if (r)
> + return r;
> +
> + r = xgpu_request_full_gpu_access(adev, true);
> + if (r) {
> + DRM_ERROR("failed to send message to HV (%d).\n", r);
> + return r;
> + }
> +
> + return 0;
> +}
> +
> +static int xgpu_vi_late_init(void *handle)
> +{
> + return 0;
> +}
> +
> +static int xgpu_vi_sw_init(void *handle)
> +{
> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
> + struct amd_xgpu *xgpu = (struct amd_xgpu *)adev->priv_data;
> +
> + return xgpu_allocate_csa(xgpu);
> +}
> +
> +static int xgpu_vi_sw_fini(void *handle)
> +{
> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
> + struct amd_xgpu *xgpu = (struct amd_xgpu *)adev->priv_data;
> +
> + xgpu_destroy_csa(&xgpu->sa);
> +
> + return 0;
> +}
> +
> +static int xgpu_vi_hw_init(void *handle)
> +{
> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
> + struct amd_xgpu *xgpu = (struct amd_xgpu *)adev->priv_data;
> + int r;
> +
> + r = amdgpu_wb_get(adev, &xgpu->reg_val_offs);
> + if (r) {
> + DRM_ERROR("failed to alloc reg val offs(%d).\n", r);
> + return r;
> + }
> +
> + return 0;
> +}
> +
> +static int xgpu_vi_hw_fini(void *handle)
> +{
> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
> + struct amd_xgpu *xgpu = (struct amd_xgpu *)adev->priv_data;
> +
> + amdgpu_wb_free(adev, xgpu->reg_val_offs);
> + return 0;
> +}
> +
> +static void xgpu_vi_late_fini(void *handle)
> +{
> + struct amdgpu_device *adev = (struct amdgpu_device *)handle;
> + struct amd_xgpu *xgpu = (struct amd_xgpu *)adev->priv_data;
> +
> + amd_xgpu_free(xgpu);
> + adev->priv_data = NULL;
> +
> + xgpu_release_full_gpu_access(adev, false);
> +}
Most of this code seems like it would be better to just add directly
to the relevant code in vi.c (VF reg offset stuff, mail box requests)
and gfx_v8_0.c (CSA stuff).
> +
> +static int xgpu_vi_suspend(void *handle)
> +{
> + return 0;
> +}
> +
> +static int xgpu_vi_resume(void *handle)
> +{
> + return 0;
> +}
> +
> +static bool xgpu_vi_is_idle(void *handle)
> +{
> + return false;
> +}
> +
> +static int xgpu_vi_wait_for_idle(void *handle)
> +{
> + return 0;
> +}
> +
> +static bool xgpu_vi_check_soft_reset(void *handle)
> +{
> + return false;
> +}
> +
> +static int xgpu_vi_pre_soft_reset(void *handle)
> +{
> + return 0;
> +}
> +
> +static int xgpu_vi_soft_reset(void *handle)
> +{
> + return 0;
> +}
> +
> +static int xgpu_vi_post_soft_reset(void *handle)
> +{
> + return 0;
> +}
> +
> +static int xgpu_vi_set_clockgating_state(void *handle,
> + enum amd_clockgating_state state)
> +{
> + return 0;
> +}
> +
> +const struct amd_ip_funcs xgpu_vi_ip_funcs = {
> + .name = "xgpu-vi",
> + .early_init = xgpu_vi_early_init,
> + .late_init = xgpu_vi_late_init,
> + .sw_init = xgpu_vi_sw_init,
> + .sw_fini = xgpu_vi_sw_fini,
> + .hw_init = xgpu_vi_hw_init,
> + .hw_fini = xgpu_vi_hw_fini,
> + .late_fini = xgpu_vi_late_fini,
> + .suspend = xgpu_vi_suspend,
> + .resume = xgpu_vi_resume,
> + .is_idle = xgpu_vi_is_idle,
> + .wait_for_idle = xgpu_vi_wait_for_idle,
> + .check_soft_reset = xgpu_vi_check_soft_reset,
> + .pre_soft_reset = xgpu_vi_pre_soft_reset,
> + .soft_reset = xgpu_vi_soft_reset,
> + .post_soft_reset = xgpu_vi_post_soft_reset,
> + .set_clockgating_state = xgpu_vi_set_clockgating_state,
> +};
> +
> +static const struct amdgpu_ip_block_version xgpu_vi_ip_block = {
> + .type = AMD_IP_BLOCK_TYPE_XGPU,
> + .major = 1,
> + .minor = 0,
> + .rev = 0,
> + .funcs = &xgpu_vi_ip_funcs,
> +};
> +
> +void xgpu_vi_add_ip_blocks(struct amdgpu_device *adev)
> +{
> + amdgpu_ip_block_add(adev, &vi_common_ip_block);
> + amdgpu_ip_block_add(adev, &gmc_v8_5_ip_block);
> + amdgpu_ip_block_add(adev, &tonga_ih_ip_block);
> + amdgpu_ip_block_add(adev, &amdgpu_pp_ip_block);
> + amdgpu_ip_block_add(adev, &dce_virtual_ip_block);
> + amdgpu_ip_block_add(adev, &gfx_v8_0_ip_block);
> + amdgpu_ip_block_add(adev, &xgpu_vi_ip_block);
> + amdgpu_ip_block_add(adev, &sdma_v3_0_ip_block);
> +}
Handle the VF specific IP blocks directly in vi.c
> --
> 2.7.4
>
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