7b0062036c
crc checksums are used to validate the output. Normally they're part of the actual display hardware but on virtual stack there's nothing to automatically generate them. Implement crc generation for the vmwgfx stack. This works only on screen targets, where it's possibly to easily make sure that the guest side contents of the surface matches the host sides output. Just like the vblank support, crc generation can only be enabled via: guestinfo.vmwgfx.vkms_enable = "TRUE" option in the vmx file. Makes IGT's kms_pipe_crc_basic pass and allows a huge number of other IGT tests which require CRC generation of the output to actually run on vmwgfx. Makes it possible to actually validate a lof of the kms and drm functionality with vmwgfx. Signed-off-by: Zack Rusin <zack.rusin@broadcom.com> Acked-by: Martin Krastev <martin.krastev@broadcom.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240412025511.78553-3-zack.rusin@broadcom.com
75 lines
3 KiB
C
75 lines
3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
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/**************************************************************************
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*
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* Copyright (c) 2024 Broadcom. All Rights Reserved. The term
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* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef VMWGFX_VKMS_H_
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#define VMWGFX_VKMS_H_
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#include <linux/hrtimer_types.h>
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#include <linux/types.h>
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struct drm_atomic_state;
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struct drm_crtc;
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struct vmw_private;
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struct vmw_surface;
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void vmw_vkms_init(struct vmw_private *vmw);
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void vmw_vkms_cleanup(struct vmw_private *vmw);
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void vmw_vkms_modeset_lock(struct drm_crtc *crtc);
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bool vmw_vkms_modeset_lock_relaxed(struct drm_crtc *crtc);
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bool vmw_vkms_vblank_trylock(struct drm_crtc *crtc);
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void vmw_vkms_unlock(struct drm_crtc *crtc);
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bool vmw_vkms_get_vblank_timestamp(struct drm_crtc *crtc,
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int *max_error,
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ktime_t *vblank_time,
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bool in_vblank_irq);
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int vmw_vkms_enable_vblank(struct drm_crtc *crtc);
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void vmw_vkms_disable_vblank(struct drm_crtc *crtc);
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void vmw_vkms_crtc_init(struct drm_crtc *crtc);
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void vmw_vkms_crtc_cleanup(struct drm_crtc *crtc);
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void vmw_vkms_crtc_atomic_begin(struct drm_crtc *crtc,
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struct drm_atomic_state *state);
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void vmw_vkms_crtc_atomic_flush(struct drm_crtc *crtc, struct drm_atomic_state *state);
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void vmw_vkms_crtc_atomic_enable(struct drm_crtc *crtc,
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struct drm_atomic_state *state);
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void vmw_vkms_crtc_atomic_disable(struct drm_crtc *crtc,
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struct drm_atomic_state *state);
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const char *const *vmw_vkms_get_crc_sources(struct drm_crtc *crtc,
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size_t *count);
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int vmw_vkms_verify_crc_source(struct drm_crtc *crtc,
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const char *src_name,
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size_t *values_cnt);
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int vmw_vkms_set_crc_source(struct drm_crtc *crtc,
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const char *src_name);
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void vmw_vkms_set_crc_surface(struct drm_crtc *crtc,
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struct vmw_surface *surf);
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#endif
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