mirror of
https://gitlab.freedesktop.org/mesa/drm.git
synced 2025-12-25 00:10:11 +01:00
1fbfd9eb32
1. The command verifier was never initialized in the non-core source tree.
2. Check added that the AGP ring buffer has been initialized before
accepting command buffer.
3. Free space check in the AGP buffer is moved to after command
verification, which is more optimal in most cases.
89 lines
3.2 KiB
C
89 lines
3.2 KiB
C
/*
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* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
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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 "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sub license,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to 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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* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _VIA_DRV_H_
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#define _VIA_DRV_H_
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#define DRIVER_AUTHOR "VIA"
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#define DRIVER_NAME "via"
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#define DRIVER_DESC "VIA Unichrome"
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#define DRIVER_DATE "20041206"
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#define DRIVER_MAJOR 2
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#define DRIVER_MINOR 2
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#define DRIVER_PATCHLEVEL 1
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typedef struct drm_via_ring_buffer {
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drm_map_t map;
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char *virtual_start;
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} drm_via_ring_buffer_t;
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typedef struct drm_via_private {
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drm_via_sarea_t *sarea_priv;
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drm_map_t *sarea;
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drm_map_t *fb;
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drm_map_t *mmio;
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unsigned long agpAddr;
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wait_queue_head_t decoder_queue[VIA_NR_XVMC_LOCKS];
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char *dma_ptr;
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unsigned int dma_low;
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unsigned int dma_high;
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unsigned int dma_offset;
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volatile uint32_t *last_pause_ptr;
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volatile uint32_t *hw_addr_ptr;
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drm_via_ring_buffer_t ring;
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struct timeval last_vblank;
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int last_vblank_valid;
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unsigned usec_per_vblank;
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} drm_via_private_t;
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/* VIA MMIO register access */
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#define VIA_BASE ((dev_priv->mmio))
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#define VIA_READ(reg) DRM_READ32(VIA_BASE, reg)
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#define VIA_WRITE(reg,val) DRM_WRITE32(VIA_BASE, reg, val)
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#define VIA_READ8(reg) DRM_READ8(VIA_BASE, reg)
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#define VIA_WRITE8(reg,val) DRM_WRITE8(VIA_BASE, reg, val)
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extern int via_init_context(drm_device_t * dev, int context);
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extern int via_final_context(drm_device_t * dev, int context);
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extern int via_do_init_map(drm_device_t * dev, drm_via_init_t * init);
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extern int via_do_cleanup_map(drm_device_t * dev);
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extern int via_map_init(struct inode *inode, struct file *filp,
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unsigned int cmd, unsigned long arg);
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extern int via_driver_vblank_wait(drm_device_t * dev, unsigned int *sequence);
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extern irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS);
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extern void via_driver_irq_preinstall(drm_device_t * dev);
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extern void via_driver_irq_postinstall(drm_device_t * dev);
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extern void via_driver_irq_uninstall(drm_device_t * dev);
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extern int via_dma_cleanup(drm_device_t * dev);
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extern void via_init_command_verifier(void);
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extern int via_verify_command_stream(const uint32_t * buf, unsigned int size, drm_device_t *dev);
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extern int via_wait_idle(drm_via_private_t * dev_priv);
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#endif
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