mirror of
https://github.com/torvalds/linux.git
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Merge head 'drm-via' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6
This commit is contained in:
Linus Torvalds
commit
4cda1fd787
@ -96,3 +96,10 @@ config DRM_SIS
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chipset. If M is selected the module will be called sis. AGP
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support is required for this driver to work.
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config DRM_VIA
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tristate "Via unichrome video cards"
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depends on DRM
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help
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Choose this option if you have a Via unichrome or compatible video
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chipset. If M is selected the module will be called via.
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@ -18,6 +18,7 @@ i915-objs := i915_drv.o i915_dma.o i915_irq.o i915_mem.o
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radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o
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ffb-objs := ffb_drv.o ffb_context.o
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sis-objs := sis_drv.o sis_ds.o sis_mm.o
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via-objs := via_irq.o via_drv.o via_ds.o via_map.o via_mm.o via_dma.o via_verifier.o via_video.o
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ifeq ($(CONFIG_COMPAT),y)
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drm-objs += drm_ioc32.o
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@ -35,4 +36,5 @@ obj-$(CONFIG_DRM_I830) += i830.o
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obj-$(CONFIG_DRM_I915) += i915.o
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obj-$(CONFIG_DRM_FFB) += ffb.o
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obj-$(CONFIG_DRM_SIS) += sis.o
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obj-$(CONFIG_DRM_VIA) +=via.o
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@ -223,3 +223,10 @@
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{0x8086, 0x2772, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
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{0, 0, 0}
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#define viadrv_PCI_IDS \
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{0x1106, 0x3022, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
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{0x1106, 0x3122, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
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{0x1106, 0x7205, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
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{0x1106, 0x7204, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
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{0, 0, 0}
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1651
drivers/char/drm/via_3d_reg.h
Normal file
1651
drivers/char/drm/via_3d_reg.h
Normal file
File diff suppressed because it is too large
Load Diff
741
drivers/char/drm/via_dma.c
Normal file
741
drivers/char/drm/via_dma.c
Normal file
@ -0,0 +1,741 @@
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/* via_dma.c -- DMA support for the VIA Unichrome/Pro
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*
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* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Copyright 2004 Digeo, Inc., Palo Alto, CA, U.S.A.
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* All Rights Reserved.
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*
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* Copyright 2004 The Unichrome project.
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* 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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* 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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* Authors:
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* Tungsten Graphics,
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* Erdi Chen,
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* Thomas Hellstrom.
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*/
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#include "drmP.h"
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#include "drm.h"
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#include "via_drm.h"
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#include "via_drv.h"
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#include "via_3d_reg.h"
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#define CMDBUF_ALIGNMENT_SIZE (0x100)
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#define CMDBUF_ALIGNMENT_MASK (0x0ff)
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/* defines for VIA 3D registers */
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#define VIA_REG_STATUS 0x400
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#define VIA_REG_TRANSET 0x43C
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#define VIA_REG_TRANSPACE 0x440
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/* VIA_REG_STATUS(0x400): Engine Status */
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#define VIA_CMD_RGTR_BUSY 0x00000080 /* Command Regulator is busy */
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#define VIA_2D_ENG_BUSY 0x00000001 /* 2D Engine is busy */
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#define VIA_3D_ENG_BUSY 0x00000002 /* 3D Engine is busy */
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#define VIA_VR_QUEUE_BUSY 0x00020000 /* Virtual Queue is busy */
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#define SetReg2DAGP(nReg, nData) { \
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*((uint32_t *)(vb)) = ((nReg) >> 2) | HALCYON_HEADER1; \
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*((uint32_t *)(vb) + 1) = (nData); \
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vb = ((uint32_t *)vb) + 2; \
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dev_priv->dma_low +=8; \
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}
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#define via_flush_write_combine() DRM_MEMORYBARRIER()
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#define VIA_OUT_RING_QW(w1,w2) \
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*vb++ = (w1); \
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*vb++ = (w2); \
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dev_priv->dma_low += 8;
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static void via_cmdbuf_start(drm_via_private_t * dev_priv);
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static void via_cmdbuf_pause(drm_via_private_t * dev_priv);
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static void via_cmdbuf_reset(drm_via_private_t * dev_priv);
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static void via_cmdbuf_rewind(drm_via_private_t * dev_priv);
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static int via_wait_idle(drm_via_private_t * dev_priv);
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static void via_pad_cache(drm_via_private_t *dev_priv, int qwords);
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/*
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* Free space in command buffer.
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*/
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static uint32_t
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via_cmdbuf_space(drm_via_private_t *dev_priv)
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{
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uint32_t agp_base = dev_priv->dma_offset +
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(uint32_t) dev_priv->agpAddr;
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uint32_t hw_addr = *(dev_priv->hw_addr_ptr) - agp_base;
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return ((hw_addr <= dev_priv->dma_low) ?
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(dev_priv->dma_high + hw_addr - dev_priv->dma_low) :
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(hw_addr - dev_priv->dma_low));
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}
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/*
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* How much does the command regulator lag behind?
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*/
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static uint32_t
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via_cmdbuf_lag(drm_via_private_t *dev_priv)
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{
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uint32_t agp_base = dev_priv->dma_offset +
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(uint32_t) dev_priv->agpAddr;
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uint32_t hw_addr = *(dev_priv->hw_addr_ptr) - agp_base;
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return ((hw_addr <= dev_priv->dma_low) ?
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(dev_priv->dma_low - hw_addr) :
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(dev_priv->dma_wrap + dev_priv->dma_low - hw_addr));
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}
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/*
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* Check that the given size fits in the buffer, otherwise wait.
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*/
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static inline int
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via_cmdbuf_wait(drm_via_private_t * dev_priv, unsigned int size)
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{
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uint32_t agp_base = dev_priv->dma_offset + (uint32_t) dev_priv->agpAddr;
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uint32_t cur_addr, hw_addr, next_addr;
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volatile uint32_t *hw_addr_ptr;
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uint32_t count;
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hw_addr_ptr = dev_priv->hw_addr_ptr;
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cur_addr = dev_priv->dma_low;
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next_addr = cur_addr + size + 512*1024;
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count = 1000000;
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do {
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hw_addr = *hw_addr_ptr - agp_base;
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if (count-- == 0) {
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DRM_ERROR("via_cmdbuf_wait timed out hw %x cur_addr %x next_addr %x\n",
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hw_addr, cur_addr, next_addr);
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return -1;
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}
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} while ((cur_addr < hw_addr) && (next_addr >= hw_addr));
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return 0;
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}
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/*
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* Checks whether buffer head has reach the end. Rewind the ring buffer
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* when necessary.
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*
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* Returns virtual pointer to ring buffer.
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*/
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static inline uint32_t *via_check_dma(drm_via_private_t * dev_priv,
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unsigned int size)
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{
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if ((dev_priv->dma_low + size + 4*CMDBUF_ALIGNMENT_SIZE) > dev_priv->dma_high) {
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via_cmdbuf_rewind(dev_priv);
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}
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if (via_cmdbuf_wait(dev_priv, size) != 0) {
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return NULL;
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}
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return (uint32_t *) (dev_priv->dma_ptr + dev_priv->dma_low);
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}
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int via_dma_cleanup(drm_device_t * dev)
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{
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if (dev->dev_private) {
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drm_via_private_t *dev_priv =
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(drm_via_private_t *) dev->dev_private;
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if (dev_priv->ring.virtual_start) {
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via_cmdbuf_reset(dev_priv);
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drm_core_ioremapfree(&dev_priv->ring.map, dev);
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dev_priv->ring.virtual_start = NULL;
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}
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}
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return 0;
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}
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static int via_initialize(drm_device_t * dev,
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drm_via_private_t * dev_priv,
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drm_via_dma_init_t * init)
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{
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if (!dev_priv || !dev_priv->mmio) {
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DRM_ERROR("via_dma_init called before via_map_init\n");
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return DRM_ERR(EFAULT);
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}
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if (dev_priv->ring.virtual_start != NULL) {
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DRM_ERROR("%s called again without calling cleanup\n",
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__FUNCTION__);
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return DRM_ERR(EFAULT);
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}
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if (!dev->agp || !dev->agp->base) {
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DRM_ERROR("%s called with no agp memory available\n",
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__FUNCTION__);
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return DRM_ERR(EFAULT);
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}
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dev_priv->ring.map.offset = dev->agp->base + init->offset;
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dev_priv->ring.map.size = init->size;
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dev_priv->ring.map.type = 0;
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dev_priv->ring.map.flags = 0;
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dev_priv->ring.map.mtrr = 0;
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drm_core_ioremap(&dev_priv->ring.map, dev);
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if (dev_priv->ring.map.handle == NULL) {
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via_dma_cleanup(dev);
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DRM_ERROR("can not ioremap virtual address for"
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" ring buffer\n");
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return DRM_ERR(ENOMEM);
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}
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dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
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dev_priv->dma_ptr = dev_priv->ring.virtual_start;
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dev_priv->dma_low = 0;
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dev_priv->dma_high = init->size;
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dev_priv->dma_wrap = init->size;
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dev_priv->dma_offset = init->offset;
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dev_priv->last_pause_ptr = NULL;
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dev_priv->hw_addr_ptr = dev_priv->mmio->handle + init->reg_pause_addr;
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via_cmdbuf_start(dev_priv);
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return 0;
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}
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int via_dma_init(DRM_IOCTL_ARGS)
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{
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DRM_DEVICE;
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drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
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drm_via_dma_init_t init;
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int retcode = 0;
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DRM_COPY_FROM_USER_IOCTL(init, (drm_via_dma_init_t *) data,
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sizeof(init));
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switch (init.func) {
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case VIA_INIT_DMA:
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if (!capable(CAP_SYS_ADMIN))
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retcode = DRM_ERR(EPERM);
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||||
else
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retcode = via_initialize(dev, dev_priv, &init);
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||||
break;
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case VIA_CLEANUP_DMA:
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||||
if (!capable(CAP_SYS_ADMIN))
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||||
retcode = DRM_ERR(EPERM);
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||||
else
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||||
retcode = via_dma_cleanup(dev);
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||||
break;
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||||
case VIA_DMA_INITIALIZED:
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||||
retcode = (dev_priv->ring.virtual_start != NULL) ?
|
||||
0: DRM_ERR( EFAULT );
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||||
break;
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||||
default:
|
||||
retcode = DRM_ERR(EINVAL);
|
||||
break;
|
||||
}
|
||||
|
||||
return retcode;
|
||||
}
|
||||
|
||||
|
||||
|
||||
static int via_dispatch_cmdbuffer(drm_device_t * dev, drm_via_cmdbuffer_t * cmd)
|
||||
{
|
||||
drm_via_private_t *dev_priv;
|
||||
uint32_t *vb;
|
||||
int ret;
|
||||
|
||||
dev_priv = (drm_via_private_t *) dev->dev_private;
|
||||
|
||||
if (dev_priv->ring.virtual_start == NULL) {
|
||||
DRM_ERROR("%s called without initializing AGP ring buffer.\n",
|
||||
__FUNCTION__);
|
||||
return DRM_ERR(EFAULT);
|
||||
}
|
||||
|
||||
if (cmd->size > VIA_PCI_BUF_SIZE) {
|
||||
return DRM_ERR(ENOMEM);
|
||||
}
|
||||
|
||||
|
||||
if (DRM_COPY_FROM_USER(dev_priv->pci_buf, cmd->buf, cmd->size))
|
||||
return DRM_ERR(EFAULT);
|
||||
|
||||
/*
|
||||
* Running this function on AGP memory is dead slow. Therefore
|
||||
* we run it on a temporary cacheable system memory buffer and
|
||||
* copy it to AGP memory when ready.
|
||||
*/
|
||||
|
||||
|
||||
if ((ret = via_verify_command_stream((uint32_t *)dev_priv->pci_buf, cmd->size, dev, 1))) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
vb = via_check_dma(dev_priv, (cmd->size < 0x100) ? 0x102 : cmd->size);
|
||||
if (vb == NULL) {
|
||||
return DRM_ERR(EAGAIN);
|
||||
}
|
||||
|
||||
memcpy(vb, dev_priv->pci_buf, cmd->size);
|
||||
|
||||
dev_priv->dma_low += cmd->size;
|
||||
|
||||
/*
|
||||
* Small submissions somehow stalls the CPU. (AGP cache effects?)
|
||||
* pad to greater size.
|
||||
*/
|
||||
|
||||
if (cmd->size < 0x100)
|
||||
via_pad_cache(dev_priv,(0x100 - cmd->size) >> 3);
|
||||
via_cmdbuf_pause(dev_priv);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int via_driver_dma_quiescent(drm_device_t * dev)
|
||||
{
|
||||
drm_via_private_t *dev_priv = dev->dev_private;
|
||||
|
||||
if (!via_wait_idle(dev_priv)) {
|
||||
return DRM_ERR(EBUSY);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int via_flush_ioctl(DRM_IOCTL_ARGS)
|
||||
{
|
||||
DRM_DEVICE;
|
||||
|
||||
LOCK_TEST_WITH_RETURN( dev, filp );
|
||||
|
||||
return via_driver_dma_quiescent(dev);
|
||||
}
|
||||
|
||||
int via_cmdbuffer(DRM_IOCTL_ARGS)
|
||||
{
|
||||
DRM_DEVICE;
|
||||
drm_via_cmdbuffer_t cmdbuf;
|
||||
int ret;
|
||||
|
||||
LOCK_TEST_WITH_RETURN( dev, filp );
|
||||
|
||||
DRM_COPY_FROM_USER_IOCTL(cmdbuf, (drm_via_cmdbuffer_t *) data,
|
||||
sizeof(cmdbuf));
|
||||
|
||||
DRM_DEBUG("via cmdbuffer, buf %p size %lu\n", cmdbuf.buf, cmdbuf.size);
|
||||
|
||||
ret = via_dispatch_cmdbuffer(dev, &cmdbuf);
|
||||
if (ret) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
extern int
|
||||
via_parse_command_stream(drm_device_t *dev, const uint32_t * buf, unsigned int size);
|
||||
static int via_dispatch_pci_cmdbuffer(drm_device_t * dev,
|
||||
drm_via_cmdbuffer_t * cmd)
|
||||
{
|
||||
drm_via_private_t *dev_priv = dev->dev_private;
|
||||
int ret;
|
||||
|
||||
if (cmd->size > VIA_PCI_BUF_SIZE) {
|
||||
return DRM_ERR(ENOMEM);
|
||||
}
|
||||
if (DRM_COPY_FROM_USER(dev_priv->pci_buf, cmd->buf, cmd->size))
|
||||
return DRM_ERR(EFAULT);
|
||||
|
||||
if ((ret = via_verify_command_stream((uint32_t *)dev_priv->pci_buf, cmd->size, dev, 0))) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = via_parse_command_stream(dev, (const uint32_t *)dev_priv->pci_buf, cmd->size);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int via_pci_cmdbuffer(DRM_IOCTL_ARGS)
|
||||
{
|
||||
DRM_DEVICE;
|
||||
drm_via_cmdbuffer_t cmdbuf;
|
||||
int ret;
|
||||
|
||||
LOCK_TEST_WITH_RETURN( dev, filp );
|
||||
|
||||
DRM_COPY_FROM_USER_IOCTL(cmdbuf, (drm_via_cmdbuffer_t *) data,
|
||||
sizeof(cmdbuf));
|
||||
|
||||
DRM_DEBUG("via_pci_cmdbuffer, buf %p size %lu\n", cmdbuf.buf,
|
||||
cmdbuf.size);
|
||||
|
||||
ret = via_dispatch_pci_cmdbuffer(dev, &cmdbuf);
|
||||
if (ret) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static inline uint32_t *via_align_buffer(drm_via_private_t * dev_priv,
|
||||
uint32_t * vb, int qw_count)
|
||||
{
|
||||
for (; qw_count > 0; --qw_count) {
|
||||
VIA_OUT_RING_QW(HC_DUMMY, HC_DUMMY);
|
||||
}
|
||||
return vb;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* This function is used internally by ring buffer mangement code.
|
||||
*
|
||||
* Returns virtual pointer to ring buffer.
|
||||
*/
|
||||
static inline uint32_t *via_get_dma(drm_via_private_t * dev_priv)
|
||||
{
|
||||
return (uint32_t *) (dev_priv->dma_ptr + dev_priv->dma_low);
|
||||
}
|
||||
|
||||
/*
|
||||
* Hooks a segment of data into the tail of the ring-buffer by
|
||||
* modifying the pause address stored in the buffer itself. If
|
||||
* the regulator has already paused, restart it.
|
||||
*/
|
||||
static int via_hook_segment(drm_via_private_t *dev_priv,
|
||||
uint32_t pause_addr_hi, uint32_t pause_addr_lo,
|
||||
int no_pci_fire)
|
||||
{
|
||||
int paused, count;
|
||||
volatile uint32_t *paused_at = dev_priv->last_pause_ptr;
|
||||
|
||||
via_flush_write_combine();
|
||||
while(! *(via_get_dma(dev_priv)-1));
|
||||
*dev_priv->last_pause_ptr = pause_addr_lo;
|
||||
via_flush_write_combine();
|
||||
|
||||
/*
|
||||
* The below statement is inserted to really force the flush.
|
||||
* Not sure it is needed.
|
||||
*/
|
||||
|
||||
while(! *dev_priv->last_pause_ptr);
|
||||
dev_priv->last_pause_ptr = via_get_dma(dev_priv) - 1;
|
||||
while(! *dev_priv->last_pause_ptr);
|
||||
|
||||
|
||||
paused = 0;
|
||||
count = 20;
|
||||
|
||||
while (!(paused = (VIA_READ(0x41c) & 0x80000000)) && count--);
|
||||
if ((count <= 8) && (count >= 0)) {
|
||||
uint32_t rgtr, ptr;
|
||||
rgtr = *(dev_priv->hw_addr_ptr);
|
||||
ptr = ((char *)dev_priv->last_pause_ptr - dev_priv->dma_ptr) +
|
||||
dev_priv->dma_offset + (uint32_t) dev_priv->agpAddr + 4 -
|
||||
CMDBUF_ALIGNMENT_SIZE;
|
||||
if (rgtr <= ptr) {
|
||||
DRM_ERROR("Command regulator\npaused at count %d, address %x, "
|
||||
"while current pause address is %x.\n"
|
||||
"Please mail this message to "
|
||||
"<unichrome-devel@lists.sourceforge.net>\n",
|
||||
count, rgtr, ptr);
|
||||
}
|
||||
}
|
||||
|
||||
if (paused && !no_pci_fire) {
|
||||
uint32_t rgtr,ptr;
|
||||
uint32_t ptr_low;
|
||||
|
||||
count = 1000000;
|
||||
while ((VIA_READ(VIA_REG_STATUS) & VIA_CMD_RGTR_BUSY) && count--);
|
||||
|
||||
rgtr = *(dev_priv->hw_addr_ptr);
|
||||
ptr = ((char *)paused_at - dev_priv->dma_ptr) +
|
||||
dev_priv->dma_offset + (uint32_t) dev_priv->agpAddr + 4;
|
||||
|
||||
|
||||
ptr_low = (ptr > 3*CMDBUF_ALIGNMENT_SIZE) ?
|
||||
ptr - 3*CMDBUF_ALIGNMENT_SIZE : 0;
|
||||
if (rgtr <= ptr && rgtr >= ptr_low) {
|
||||
VIA_WRITE(VIA_REG_TRANSET, (HC_ParaType_PreCR << 16));
|
||||
VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_hi);
|
||||
VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_lo);
|
||||
}
|
||||
}
|
||||
return paused;
|
||||
}
|
||||
|
||||
|
||||
|
||||
static int via_wait_idle(drm_via_private_t * dev_priv)
|
||||
{
|
||||
int count = 10000000;
|
||||
while (count-- && (VIA_READ(VIA_REG_STATUS) &
|
||||
(VIA_CMD_RGTR_BUSY | VIA_2D_ENG_BUSY |
|
||||
VIA_3D_ENG_BUSY))) ;
|
||||
return count;
|
||||
}
|
||||
|
||||
static uint32_t *via_align_cmd(drm_via_private_t * dev_priv, uint32_t cmd_type,
|
||||
uint32_t addr, uint32_t *cmd_addr_hi,
|
||||
uint32_t *cmd_addr_lo,
|
||||
int skip_wait)
|
||||
{
|
||||
uint32_t agp_base;
|
||||
uint32_t cmd_addr, addr_lo, addr_hi;
|
||||
uint32_t *vb;
|
||||
uint32_t qw_pad_count;
|
||||
|
||||
if (!skip_wait)
|
||||
via_cmdbuf_wait(dev_priv, 2*CMDBUF_ALIGNMENT_SIZE);
|
||||
|
||||
vb = via_get_dma(dev_priv);
|
||||
VIA_OUT_RING_QW( HC_HEADER2 | ((VIA_REG_TRANSET >> 2) << 12) |
|
||||
(VIA_REG_TRANSPACE >> 2), HC_ParaType_PreCR << 16);
|
||||
agp_base = dev_priv->dma_offset + (uint32_t) dev_priv->agpAddr;
|
||||
qw_pad_count = (CMDBUF_ALIGNMENT_SIZE >> 3) -
|
||||
((dev_priv->dma_low & CMDBUF_ALIGNMENT_MASK) >> 3);
|
||||
|
||||
|
||||
cmd_addr = (addr) ? addr :
|
||||
agp_base + dev_priv->dma_low - 8 + (qw_pad_count << 3);
|
||||
addr_lo = ((HC_SubA_HAGPBpL << 24) | (cmd_type & HC_HAGPBpID_MASK) |
|
||||
(cmd_addr & HC_HAGPBpL_MASK));
|
||||
addr_hi = ((HC_SubA_HAGPBpH << 24) | (cmd_addr >> 24));
|
||||
|
||||
vb = via_align_buffer(dev_priv, vb, qw_pad_count - 1);
|
||||
VIA_OUT_RING_QW(*cmd_addr_hi = addr_hi,
|
||||
*cmd_addr_lo = addr_lo);
|
||||
return vb;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
static void via_cmdbuf_start(drm_via_private_t * dev_priv)
|
||||
{
|
||||
uint32_t pause_addr_lo, pause_addr_hi;
|
||||
uint32_t start_addr, start_addr_lo;
|
||||
uint32_t end_addr, end_addr_lo;
|
||||
uint32_t command;
|
||||
uint32_t agp_base;
|
||||
|
||||
|
||||
dev_priv->dma_low = 0;
|
||||
|
||||
agp_base = dev_priv->dma_offset + (uint32_t) dev_priv->agpAddr;
|
||||
start_addr = agp_base;
|
||||
end_addr = agp_base + dev_priv->dma_high;
|
||||
|
||||
start_addr_lo = ((HC_SubA_HAGPBstL << 24) | (start_addr & 0xFFFFFF));
|
||||
end_addr_lo = ((HC_SubA_HAGPBendL << 24) | (end_addr & 0xFFFFFF));
|
||||
command = ((HC_SubA_HAGPCMNT << 24) | (start_addr >> 24) |
|
||||
((end_addr & 0xff000000) >> 16));
|
||||
|
||||
dev_priv->last_pause_ptr =
|
||||
via_align_cmd(dev_priv, HC_HAGPBpID_PAUSE, 0,
|
||||
&pause_addr_hi, & pause_addr_lo, 1) - 1;
|
||||
|
||||
via_flush_write_combine();
|
||||
while(! *dev_priv->last_pause_ptr);
|
||||
|
||||
VIA_WRITE(VIA_REG_TRANSET, (HC_ParaType_PreCR << 16));
|
||||
VIA_WRITE(VIA_REG_TRANSPACE, command);
|
||||
VIA_WRITE(VIA_REG_TRANSPACE, start_addr_lo);
|
||||
VIA_WRITE(VIA_REG_TRANSPACE, end_addr_lo);
|
||||
|
||||
VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_hi);
|
||||
VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_lo);
|
||||
|
||||
VIA_WRITE(VIA_REG_TRANSPACE, command | HC_HAGPCMNT_MASK);
|
||||
}
|
||||
|
||||
static void via_pad_cache(drm_via_private_t *dev_priv, int qwords)
|
||||
{
|
||||
uint32_t *vb;
|
||||
|
||||
via_cmdbuf_wait(dev_priv, qwords + 2);
|
||||
vb = via_get_dma(dev_priv);
|
||||
VIA_OUT_RING_QW( HC_HEADER2, HC_ParaType_NotTex << 16);
|
||||
via_align_buffer(dev_priv,vb,qwords);
|
||||
}
|
||||
|
||||
static inline void via_dummy_bitblt(drm_via_private_t * dev_priv)
|
||||
{
|
||||
uint32_t *vb = via_get_dma(dev_priv);
|
||||
SetReg2DAGP(0x0C, (0 | (0 << 16)));
|
||||
SetReg2DAGP(0x10, 0 | (0 << 16));
|
||||
SetReg2DAGP(0x0, 0x1 | 0x2000 | 0xAA000000);
|
||||
}
|
||||
|
||||
|
||||
static void via_cmdbuf_jump(drm_via_private_t * dev_priv)
|
||||
{
|
||||
uint32_t agp_base;
|
||||
uint32_t pause_addr_lo, pause_addr_hi;
|
||||
uint32_t jump_addr_lo, jump_addr_hi;
|
||||
volatile uint32_t *last_pause_ptr;
|
||||
uint32_t dma_low_save1, dma_low_save2;
|
||||
|
||||
agp_base = dev_priv->dma_offset + (uint32_t) dev_priv->agpAddr;
|
||||
via_align_cmd(dev_priv, HC_HAGPBpID_JUMP, 0, &jump_addr_hi,
|
||||
&jump_addr_lo, 0);
|
||||
|
||||
dev_priv->dma_wrap = dev_priv->dma_low;
|
||||
|
||||
|
||||
/*
|
||||
* Wrap command buffer to the beginning.
|
||||
*/
|
||||
|
||||
dev_priv->dma_low = 0;
|
||||
if (via_cmdbuf_wait(dev_priv, CMDBUF_ALIGNMENT_SIZE) != 0) {
|
||||
DRM_ERROR("via_cmdbuf_jump failed\n");
|
||||
}
|
||||
|
||||
via_dummy_bitblt(dev_priv);
|
||||
via_dummy_bitblt(dev_priv);
|
||||
|
||||
last_pause_ptr = via_align_cmd(dev_priv, HC_HAGPBpID_PAUSE, 0, &pause_addr_hi,
|
||||
&pause_addr_lo, 0) -1;
|
||||
via_align_cmd(dev_priv, HC_HAGPBpID_PAUSE, 0, &pause_addr_hi,
|
||||
&pause_addr_lo, 0);
|
||||
|
||||
*last_pause_ptr = pause_addr_lo;
|
||||
dma_low_save1 = dev_priv->dma_low;
|
||||
|
||||
/*
|
||||
* Now, set a trap that will pause the regulator if it tries to rerun the old
|
||||
* command buffer. (Which may happen if via_hook_segment detecs a command regulator pause
|
||||
* and reissues the jump command over PCI, while the regulator has already taken the jump
|
||||
* and actually paused at the current buffer end).
|
||||
* There appears to be no other way to detect this condition, since the hw_addr_pointer
|
||||
* does not seem to get updated immediately when a jump occurs.
|
||||
*/
|
||||
|
||||
last_pause_ptr = via_align_cmd(dev_priv, HC_HAGPBpID_PAUSE, 0, &pause_addr_hi,
|
||||
&pause_addr_lo, 0) -1;
|
||||
via_align_cmd(dev_priv, HC_HAGPBpID_PAUSE, 0, &pause_addr_hi,
|
||||
&pause_addr_lo, 0);
|
||||
*last_pause_ptr = pause_addr_lo;
|
||||
|
||||
dma_low_save2 = dev_priv->dma_low;
|
||||
dev_priv->dma_low = dma_low_save1;
|
||||
via_hook_segment( dev_priv, jump_addr_hi, jump_addr_lo, 0);
|
||||
dev_priv->dma_low = dma_low_save2;
|
||||
via_hook_segment( dev_priv, pause_addr_hi, pause_addr_lo, 0);
|
||||
}
|
||||
|
||||
|
||||
static void via_cmdbuf_rewind(drm_via_private_t * dev_priv)
|
||||
{
|
||||
via_cmdbuf_jump(dev_priv);
|
||||
}
|
||||
|
||||
static void via_cmdbuf_flush(drm_via_private_t * dev_priv, uint32_t cmd_type)
|
||||
{
|
||||
uint32_t pause_addr_lo, pause_addr_hi;
|
||||
|
||||
via_align_cmd(dev_priv, cmd_type, 0, &pause_addr_hi, &pause_addr_lo, 0);
|
||||
via_hook_segment( dev_priv, pause_addr_hi, pause_addr_lo, 0);
|
||||
}
|
||||
|
||||
|
||||
static void via_cmdbuf_pause(drm_via_private_t * dev_priv)
|
||||
{
|
||||
via_cmdbuf_flush(dev_priv, HC_HAGPBpID_PAUSE);
|
||||
}
|
||||
|
||||
static void via_cmdbuf_reset(drm_via_private_t * dev_priv)
|
||||
{
|
||||
via_cmdbuf_flush(dev_priv, HC_HAGPBpID_STOP);
|
||||
via_wait_idle(dev_priv);
|
||||
}
|
||||
|
||||
/*
|
||||
* User interface to the space and lag functions.
|
||||
*/
|
||||
|
||||
int
|
||||
via_cmdbuf_size(DRM_IOCTL_ARGS)
|
||||
{
|
||||
DRM_DEVICE;
|
||||
drm_via_cmdbuf_size_t d_siz;
|
||||
int ret = 0;
|
||||
uint32_t tmp_size, count;
|
||||
drm_via_private_t *dev_priv;
|
||||
|
||||
DRM_DEBUG("via cmdbuf_size\n");
|
||||
LOCK_TEST_WITH_RETURN( dev, filp );
|
||||
|
||||
dev_priv = (drm_via_private_t *) dev->dev_private;
|
||||
|
||||
if (dev_priv->ring.virtual_start == NULL) {
|
||||
DRM_ERROR("%s called without initializing AGP ring buffer.\n",
|
||||
__FUNCTION__);
|
||||
return DRM_ERR(EFAULT);
|
||||
}
|
||||
|
||||
DRM_COPY_FROM_USER_IOCTL(d_siz, (drm_via_cmdbuf_size_t *) data,
|
||||
sizeof(d_siz));
|
||||
|
||||
|
||||
count = 1000000;
|
||||
tmp_size = d_siz.size;
|
||||
switch(d_siz.func) {
|
||||
case VIA_CMDBUF_SPACE:
|
||||
while (((tmp_size = via_cmdbuf_space(dev_priv)) < d_siz.size) && count--) {
|
||||
if (!d_siz.wait) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!count) {
|
||||
DRM_ERROR("VIA_CMDBUF_SPACE timed out.\n");
|
||||
ret = DRM_ERR(EAGAIN);
|
||||
}
|
||||
break;
|
||||
case VIA_CMDBUF_LAG:
|
||||
while (((tmp_size = via_cmdbuf_lag(dev_priv)) > d_siz.size) && count--) {
|
||||
if (!d_siz.wait) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!count) {
|
||||
DRM_ERROR("VIA_CMDBUF_LAG timed out.\n");
|
||||
ret = DRM_ERR(EAGAIN);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
ret = DRM_ERR(EFAULT);
|
||||
}
|
||||
d_siz.size = tmp_size;
|
||||
|
||||
DRM_COPY_TO_USER_IOCTL((drm_via_cmdbuf_size_t *) data, d_siz,
|
||||
sizeof(d_siz));
|
||||
return ret;
|
||||
}
|
||||
243
drivers/char/drm/via_drm.h
Normal file
243
drivers/char/drm/via_drm.h
Normal file
@ -0,0 +1,243 @@
|
||||
/*
|
||||
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
|
||||
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
|
||||
*
|
||||
* 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, sub license,
|
||||
* 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 (including the
|
||||
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
|
||||
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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.
|
||||
*/
|
||||
#ifndef _VIA_DRM_H_
|
||||
#define _VIA_DRM_H_
|
||||
|
||||
/* WARNING: These defines must be the same as what the Xserver uses.
|
||||
* if you change them, you must change the defines in the Xserver.
|
||||
*/
|
||||
|
||||
#ifndef _VIA_DEFINES_
|
||||
#define _VIA_DEFINES_
|
||||
|
||||
#ifndef __KERNEL__
|
||||
#include "via_drmclient.h"
|
||||
#endif
|
||||
|
||||
#define VIA_NR_SAREA_CLIPRECTS 8
|
||||
#define VIA_NR_XVMC_PORTS 10
|
||||
#define VIA_NR_XVMC_LOCKS 5
|
||||
#define VIA_MAX_CACHELINE_SIZE 64
|
||||
#define XVMCLOCKPTR(saPriv,lockNo) \
|
||||
((volatile drm_hw_lock_t *)(((((unsigned long) (saPriv)->XvMCLockArea) + \
|
||||
(VIA_MAX_CACHELINE_SIZE - 1)) & \
|
||||
~(VIA_MAX_CACHELINE_SIZE - 1)) + \
|
||||
VIA_MAX_CACHELINE_SIZE*(lockNo)))
|
||||
|
||||
/* Each region is a minimum of 64k, and there are at most 64 of them.
|
||||
*/
|
||||
#define VIA_NR_TEX_REGIONS 64
|
||||
#define VIA_LOG_MIN_TEX_REGION_SIZE 16
|
||||
#endif
|
||||
|
||||
#define VIA_UPLOAD_TEX0IMAGE 0x1 /* handled clientside */
|
||||
#define VIA_UPLOAD_TEX1IMAGE 0x2 /* handled clientside */
|
||||
#define VIA_UPLOAD_CTX 0x4
|
||||
#define VIA_UPLOAD_BUFFERS 0x8
|
||||
#define VIA_UPLOAD_TEX0 0x10
|
||||
#define VIA_UPLOAD_TEX1 0x20
|
||||
#define VIA_UPLOAD_CLIPRECTS 0x40
|
||||
#define VIA_UPLOAD_ALL 0xff
|
||||
|
||||
/* VIA specific ioctls */
|
||||
#define DRM_VIA_ALLOCMEM 0x00
|
||||
#define DRM_VIA_FREEMEM 0x01
|
||||
#define DRM_VIA_AGP_INIT 0x02
|
||||
#define DRM_VIA_FB_INIT 0x03
|
||||
#define DRM_VIA_MAP_INIT 0x04
|
||||
#define DRM_VIA_DEC_FUTEX 0x05
|
||||
#define NOT_USED
|
||||
#define DRM_VIA_DMA_INIT 0x07
|
||||
#define DRM_VIA_CMDBUFFER 0x08
|
||||
#define DRM_VIA_FLUSH 0x09
|
||||
#define DRM_VIA_PCICMD 0x0a
|
||||
#define DRM_VIA_CMDBUF_SIZE 0x0b
|
||||
#define NOT_USED
|
||||
#define DRM_VIA_WAIT_IRQ 0x0d
|
||||
|
||||
#define DRM_IOCTL_VIA_ALLOCMEM DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_ALLOCMEM, drm_via_mem_t)
|
||||
#define DRM_IOCTL_VIA_FREEMEM DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_FREEMEM, drm_via_mem_t)
|
||||
#define DRM_IOCTL_VIA_AGP_INIT DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_AGP_INIT, drm_via_agp_t)
|
||||
#define DRM_IOCTL_VIA_FB_INIT DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_FB_INIT, drm_via_fb_t)
|
||||
#define DRM_IOCTL_VIA_MAP_INIT DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_MAP_INIT, drm_via_init_t)
|
||||
#define DRM_IOCTL_VIA_DEC_FUTEX DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_DEC_FUTEX, drm_via_futex_t)
|
||||
#define DRM_IOCTL_VIA_DMA_INIT DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_DMA_INIT, drm_via_dma_init_t)
|
||||
#define DRM_IOCTL_VIA_CMDBUFFER DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_CMDBUFFER, drm_via_cmdbuffer_t)
|
||||
#define DRM_IOCTL_VIA_FLUSH DRM_IO( DRM_COMMAND_BASE + DRM_VIA_FLUSH)
|
||||
#define DRM_IOCTL_VIA_PCICMD DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_PCICMD, drm_via_cmdbuffer_t)
|
||||
#define DRM_IOCTL_VIA_CMDBUF_SIZE DRM_IOWR( DRM_COMMAND_BASE + DRM_VIA_CMDBUF_SIZE, \
|
||||
drm_via_cmdbuf_size_t)
|
||||
#define DRM_IOCTL_VIA_WAIT_IRQ DRM_IOWR( DRM_COMMAND_BASE + DRM_VIA_WAIT_IRQ, drm_via_irqwait_t)
|
||||
|
||||
/* Indices into buf.Setup where various bits of state are mirrored per
|
||||
* context and per buffer. These can be fired at the card as a unit,
|
||||
* or in a piecewise fashion as required.
|
||||
*/
|
||||
|
||||
#define VIA_TEX_SETUP_SIZE 8
|
||||
|
||||
/* Flags for clear ioctl
|
||||
*/
|
||||
#define VIA_FRONT 0x1
|
||||
#define VIA_BACK 0x2
|
||||
#define VIA_DEPTH 0x4
|
||||
#define VIA_STENCIL 0x8
|
||||
#define VIDEO 0
|
||||
#define AGP 1
|
||||
typedef struct {
|
||||
uint32_t offset;
|
||||
uint32_t size;
|
||||
} drm_via_agp_t;
|
||||
|
||||
typedef struct {
|
||||
uint32_t offset;
|
||||
uint32_t size;
|
||||
} drm_via_fb_t;
|
||||
|
||||
typedef struct {
|
||||
uint32_t context;
|
||||
uint32_t type;
|
||||
uint32_t size;
|
||||
unsigned long index;
|
||||
unsigned long offset;
|
||||
} drm_via_mem_t;
|
||||
|
||||
typedef struct _drm_via_init {
|
||||
enum {
|
||||
VIA_INIT_MAP = 0x01,
|
||||
VIA_CLEANUP_MAP = 0x02
|
||||
} func;
|
||||
|
||||
unsigned long sarea_priv_offset;
|
||||
unsigned long fb_offset;
|
||||
unsigned long mmio_offset;
|
||||
unsigned long agpAddr;
|
||||
} drm_via_init_t;
|
||||
|
||||
typedef struct _drm_via_futex {
|
||||
enum {
|
||||
VIA_FUTEX_WAIT = 0x00,
|
||||
VIA_FUTEX_WAKE = 0X01
|
||||
} func;
|
||||
uint32_t ms;
|
||||
uint32_t lock;
|
||||
uint32_t val;
|
||||
} drm_via_futex_t;
|
||||
|
||||
typedef struct _drm_via_dma_init {
|
||||
enum {
|
||||
VIA_INIT_DMA = 0x01,
|
||||
VIA_CLEANUP_DMA = 0x02,
|
||||
VIA_DMA_INITIALIZED = 0x03
|
||||
} func;
|
||||
|
||||
unsigned long offset;
|
||||
unsigned long size;
|
||||
unsigned long reg_pause_addr;
|
||||
} drm_via_dma_init_t;
|
||||
|
||||
typedef struct _drm_via_cmdbuffer {
|
||||
char *buf;
|
||||
unsigned long size;
|
||||
} drm_via_cmdbuffer_t;
|
||||
|
||||
/* Warning: If you change the SAREA structure you must change the Xserver
|
||||
* structure as well */
|
||||
|
||||
typedef struct _drm_via_tex_region {
|
||||
unsigned char next, prev; /* indices to form a circular LRU */
|
||||
unsigned char inUse; /* owned by a client, or free? */
|
||||
int age; /* tracked by clients to update local LRU's */
|
||||
} drm_via_tex_region_t;
|
||||
|
||||
typedef struct _drm_via_sarea {
|
||||
unsigned int dirty;
|
||||
unsigned int nbox;
|
||||
drm_clip_rect_t boxes[VIA_NR_SAREA_CLIPRECTS];
|
||||
drm_via_tex_region_t texList[VIA_NR_TEX_REGIONS + 1];
|
||||
int texAge; /* last time texture was uploaded */
|
||||
int ctxOwner; /* last context to upload state */
|
||||
int vertexPrim;
|
||||
|
||||
/*
|
||||
* Below is for XvMC.
|
||||
* We want the lock integers alone on, and aligned to, a cache line.
|
||||
* Therefore this somewhat strange construct.
|
||||
*/
|
||||
|
||||
char XvMCLockArea[VIA_MAX_CACHELINE_SIZE * (VIA_NR_XVMC_LOCKS + 1)];
|
||||
|
||||
unsigned int XvMCDisplaying[VIA_NR_XVMC_PORTS];
|
||||
unsigned int XvMCSubPicOn[VIA_NR_XVMC_PORTS];
|
||||
unsigned int XvMCCtxNoGrabbed; /* Last context to hold decoder */
|
||||
|
||||
} drm_via_sarea_t;
|
||||
|
||||
typedef struct _drm_via_cmdbuf_size {
|
||||
enum {
|
||||
VIA_CMDBUF_SPACE = 0x01,
|
||||
VIA_CMDBUF_LAG = 0x02
|
||||
} func;
|
||||
int wait;
|
||||
uint32_t size;
|
||||
} drm_via_cmdbuf_size_t;
|
||||
|
||||
typedef enum {
|
||||
VIA_IRQ_ABSOLUTE = 0x0,
|
||||
VIA_IRQ_RELATIVE = 0x1,
|
||||
VIA_IRQ_SIGNAL = 0x10000000,
|
||||
VIA_IRQ_FORCE_SEQUENCE = 0x20000000
|
||||
} via_irq_seq_type_t;
|
||||
|
||||
#define VIA_IRQ_FLAGS_MASK 0xF0000000
|
||||
|
||||
struct drm_via_wait_irq_request{
|
||||
unsigned irq;
|
||||
via_irq_seq_type_t type;
|
||||
uint32_t sequence;
|
||||
uint32_t signal;
|
||||
};
|
||||
|
||||
typedef union drm_via_irqwait {
|
||||
struct drm_via_wait_irq_request request;
|
||||
struct drm_wait_vblank_reply reply;
|
||||
} drm_via_irqwait_t;
|
||||
|
||||
#ifdef __KERNEL__
|
||||
|
||||
int via_fb_init(DRM_IOCTL_ARGS);
|
||||
int via_mem_alloc(DRM_IOCTL_ARGS);
|
||||
int via_mem_free(DRM_IOCTL_ARGS);
|
||||
int via_agp_init(DRM_IOCTL_ARGS);
|
||||
int via_map_init(DRM_IOCTL_ARGS);
|
||||
int via_decoder_futex(DRM_IOCTL_ARGS);
|
||||
int via_dma_init(DRM_IOCTL_ARGS);
|
||||
int via_cmdbuffer(DRM_IOCTL_ARGS);
|
||||
int via_flush_ioctl(DRM_IOCTL_ARGS);
|
||||
int via_pci_cmdbuffer(DRM_IOCTL_ARGS);
|
||||
int via_cmdbuf_size(DRM_IOCTL_ARGS);
|
||||
int via_wait_irq(DRM_IOCTL_ARGS);
|
||||
|
||||
#endif
|
||||
#endif /* _VIA_DRM_H_ */
|
||||
126
drivers/char/drm/via_drv.c
Normal file
126
drivers/char/drm/via_drv.c
Normal file
@ -0,0 +1,126 @@
|
||||
/*
|
||||
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
|
||||
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
|
||||
*
|
||||
* 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, sub license,
|
||||
* 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 (including the
|
||||
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
|
||||
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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.
|
||||
*/
|
||||
|
||||
#include <linux/config.h>
|
||||
#include "drmP.h"
|
||||
#include "via_drm.h"
|
||||
#include "via_drv.h"
|
||||
|
||||
#include "drm_pciids.h"
|
||||
|
||||
static int postinit(struct drm_device *dev, unsigned long flags)
|
||||
{
|
||||
DRM_INFO("Initialized %s %d.%d.%d %s on minor %d: %s\n",
|
||||
DRIVER_NAME,
|
||||
DRIVER_MAJOR,
|
||||
DRIVER_MINOR,
|
||||
DRIVER_PATCHLEVEL,
|
||||
DRIVER_DATE, dev->primary.minor, pci_pretty_name(dev->pdev)
|
||||
);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int version(drm_version_t * version)
|
||||
{
|
||||
int len;
|
||||
|
||||
version->version_major = DRIVER_MAJOR;
|
||||
version->version_minor = DRIVER_MINOR;
|
||||
version->version_patchlevel = DRIVER_PATCHLEVEL;
|
||||
DRM_COPY(version->name, DRIVER_NAME);
|
||||
DRM_COPY(version->date, DRIVER_DATE);
|
||||
DRM_COPY(version->desc, DRIVER_DESC);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct pci_device_id pciidlist[] = {
|
||||
viadrv_PCI_IDS
|
||||
};
|
||||
|
||||
static drm_ioctl_desc_t ioctls[] = {
|
||||
[DRM_IOCTL_NR(DRM_VIA_ALLOCMEM)] = {via_mem_alloc, 1, 0},
|
||||
[DRM_IOCTL_NR(DRM_VIA_FREEMEM)] = {via_mem_free, 1, 0},
|
||||
[DRM_IOCTL_NR(DRM_VIA_AGP_INIT)] = {via_agp_init, 1, 0},
|
||||
[DRM_IOCTL_NR(DRM_VIA_FB_INIT)] = {via_fb_init, 1, 0},
|
||||
[DRM_IOCTL_NR(DRM_VIA_MAP_INIT)] = {via_map_init, 1, 0},
|
||||
[DRM_IOCTL_NR(DRM_VIA_DEC_FUTEX)] = {via_decoder_futex, 1, 0},
|
||||
[DRM_IOCTL_NR(DRM_VIA_DMA_INIT)] = {via_dma_init, 1, 0},
|
||||
[DRM_IOCTL_NR(DRM_VIA_CMDBUFFER)] = {via_cmdbuffer, 1, 0},
|
||||
[DRM_IOCTL_NR(DRM_VIA_FLUSH)] = {via_flush_ioctl, 1, 0},
|
||||
[DRM_IOCTL_NR(DRM_VIA_PCICMD)] = {via_pci_cmdbuffer, 1, 0},
|
||||
[DRM_IOCTL_NR(DRM_VIA_CMDBUF_SIZE)] = {via_cmdbuf_size, 1, 0},
|
||||
[DRM_IOCTL_NR(DRM_VIA_WAIT_IRQ)] = {via_wait_irq, 1, 0}
|
||||
};
|
||||
|
||||
static struct drm_driver driver = {
|
||||
.driver_features =
|
||||
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_IRQ |
|
||||
DRIVER_IRQ_SHARED | DRIVER_IRQ_VBL,
|
||||
.context_ctor = via_init_context,
|
||||
.context_dtor = via_final_context,
|
||||
.vblank_wait = via_driver_vblank_wait,
|
||||
.irq_preinstall = via_driver_irq_preinstall,
|
||||
.irq_postinstall = via_driver_irq_postinstall,
|
||||
.irq_uninstall = via_driver_irq_uninstall,
|
||||
.irq_handler = via_driver_irq_handler,
|
||||
.dma_quiescent = via_driver_dma_quiescent,
|
||||
.reclaim_buffers = drm_core_reclaim_buffers,
|
||||
.get_map_ofs = drm_core_get_map_ofs,
|
||||
.get_reg_ofs = drm_core_get_reg_ofs,
|
||||
.postinit = postinit,
|
||||
.version = version,
|
||||
.ioctls = ioctls,
|
||||
.num_ioctls = DRM_ARRAY_SIZE(ioctls),
|
||||
.fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = drm_open,
|
||||
.release = drm_release,
|
||||
.ioctl = drm_ioctl,
|
||||
.mmap = drm_mmap,
|
||||
.poll = drm_poll,
|
||||
.fasync = drm_fasync,
|
||||
},
|
||||
.pci_driver = {
|
||||
.name = DRIVER_NAME,
|
||||
.id_table = pciidlist,
|
||||
}
|
||||
};
|
||||
|
||||
static int __init via_init(void)
|
||||
{
|
||||
via_init_command_verifier();
|
||||
return drm_init(&driver);
|
||||
}
|
||||
|
||||
static void __exit via_exit(void)
|
||||
{
|
||||
drm_exit(&driver);
|
||||
}
|
||||
|
||||
module_init(via_init);
|
||||
module_exit(via_exit);
|
||||
|
||||
MODULE_AUTHOR(DRIVER_AUTHOR);
|
||||
MODULE_DESCRIPTION(DRIVER_DESC);
|
||||
MODULE_LICENSE("GPL and additional rights");
|
||||
118
drivers/char/drm/via_drv.h
Normal file
118
drivers/char/drm/via_drv.h
Normal file
@ -0,0 +1,118 @@
|
||||
/*
|
||||
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
|
||||
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
|
||||
*
|
||||
* 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, sub license,
|
||||
* 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 (including the
|
||||
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
|
||||
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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.
|
||||
*/
|
||||
#ifndef _VIA_DRV_H_
|
||||
#define _VIA_DRV_H_
|
||||
|
||||
#define DRIVER_AUTHOR "VIA"
|
||||
|
||||
#define DRIVER_NAME "via"
|
||||
#define DRIVER_DESC "VIA Unichrome / Pro"
|
||||
#define DRIVER_DATE "20050523"
|
||||
|
||||
#define DRIVER_MAJOR 2
|
||||
#define DRIVER_MINOR 6
|
||||
#define DRIVER_PATCHLEVEL 3
|
||||
|
||||
#include "via_verifier.h"
|
||||
|
||||
#define VIA_PCI_BUF_SIZE 60000
|
||||
#define VIA_FIRE_BUF_SIZE 1024
|
||||
#define VIA_NUM_IRQS 2
|
||||
|
||||
|
||||
|
||||
typedef struct drm_via_ring_buffer {
|
||||
drm_map_t map;
|
||||
char *virtual_start;
|
||||
} drm_via_ring_buffer_t;
|
||||
|
||||
typedef uint32_t maskarray_t[5];
|
||||
|
||||
typedef struct drm_via_irq {
|
||||
atomic_t irq_received;
|
||||
uint32_t pending_mask;
|
||||
uint32_t enable_mask;
|
||||
wait_queue_head_t irq_queue;
|
||||
} drm_via_irq_t;
|
||||
|
||||
typedef struct drm_via_private {
|
||||
drm_via_sarea_t *sarea_priv;
|
||||
drm_map_t *sarea;
|
||||
drm_map_t *fb;
|
||||
drm_map_t *mmio;
|
||||
unsigned long agpAddr;
|
||||
wait_queue_head_t decoder_queue[VIA_NR_XVMC_LOCKS];
|
||||
char *dma_ptr;
|
||||
unsigned int dma_low;
|
||||
unsigned int dma_high;
|
||||
unsigned int dma_offset;
|
||||
uint32_t dma_wrap;
|
||||
volatile uint32_t *last_pause_ptr;
|
||||
volatile uint32_t *hw_addr_ptr;
|
||||
drm_via_ring_buffer_t ring;
|
||||
struct timeval last_vblank;
|
||||
int last_vblank_valid;
|
||||
unsigned usec_per_vblank;
|
||||
drm_via_state_t hc_state;
|
||||
char pci_buf[VIA_PCI_BUF_SIZE];
|
||||
const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
|
||||
uint32_t num_fire_offsets;
|
||||
int pro_group_a;
|
||||
drm_via_irq_t via_irqs[VIA_NUM_IRQS];
|
||||
unsigned num_irqs;
|
||||
maskarray_t *irq_masks;
|
||||
uint32_t irq_enable_mask;
|
||||
uint32_t irq_pending_mask;
|
||||
} drm_via_private_t;
|
||||
|
||||
/* VIA MMIO register access */
|
||||
#define VIA_BASE ((dev_priv->mmio))
|
||||
|
||||
#define VIA_READ(reg) DRM_READ32(VIA_BASE, reg)
|
||||
#define VIA_WRITE(reg,val) DRM_WRITE32(VIA_BASE, reg, val)
|
||||
#define VIA_READ8(reg) DRM_READ8(VIA_BASE, reg)
|
||||
#define VIA_WRITE8(reg,val) DRM_WRITE8(VIA_BASE, reg, val)
|
||||
|
||||
extern int via_init_context(drm_device_t * dev, int context);
|
||||
extern int via_final_context(drm_device_t * dev, int context);
|
||||
|
||||
extern int via_do_cleanup_map(drm_device_t * dev);
|
||||
extern int via_map_init(struct inode *inode, struct file *filp,
|
||||
unsigned int cmd, unsigned long arg);
|
||||
extern int via_driver_vblank_wait(drm_device_t * dev, unsigned int *sequence);
|
||||
|
||||
extern irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS);
|
||||
extern void via_driver_irq_preinstall(drm_device_t * dev);
|
||||
extern void via_driver_irq_postinstall(drm_device_t * dev);
|
||||
extern void via_driver_irq_uninstall(drm_device_t * dev);
|
||||
|
||||
extern int via_dma_cleanup(drm_device_t * dev);
|
||||
extern void via_init_command_verifier(void);
|
||||
extern int via_driver_dma_quiescent(drm_device_t * dev);
|
||||
extern void via_init_futex(drm_via_private_t *dev_priv);
|
||||
extern void via_cleanup_futex(drm_via_private_t *dev_priv);
|
||||
extern void via_release_futex(drm_via_private_t *dev_priv, int context);
|
||||
|
||||
|
||||
#endif
|
||||
280
drivers/char/drm/via_ds.c
Normal file
280
drivers/char/drm/via_ds.c
Normal file
@ -0,0 +1,280 @@
|
||||
/*
|
||||
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
|
||||
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
|
||||
* Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
|
||||
*
|
||||
* 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, sub license,
|
||||
* 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 (including the
|
||||
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
|
||||
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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.
|
||||
*/
|
||||
#include <linux/module.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/poll.h>
|
||||
#include <linux/pci.h>
|
||||
#include <asm/io.h>
|
||||
|
||||
#include "via_ds.h"
|
||||
extern unsigned int VIA_DEBUG;
|
||||
|
||||
set_t *via_setInit(void)
|
||||
{
|
||||
int i;
|
||||
set_t *set;
|
||||
set = (set_t *) drm_alloc(sizeof(set_t), DRM_MEM_DRIVER);
|
||||
for (i = 0; i < SET_SIZE; i++) {
|
||||
set->list[i].free_next = i + 1;
|
||||
set->list[i].alloc_next = -1;
|
||||
}
|
||||
set->list[SET_SIZE - 1].free_next = -1;
|
||||
set->free = 0;
|
||||
set->alloc = -1;
|
||||
set->trace = -1;
|
||||
return set;
|
||||
}
|
||||
|
||||
int via_setAdd(set_t * set, ITEM_TYPE item)
|
||||
{
|
||||
int free = set->free;
|
||||
if (free != -1) {
|
||||
set->list[free].val = item;
|
||||
set->free = set->list[free].free_next;
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
set->list[free].alloc_next = set->alloc;
|
||||
set->alloc = free;
|
||||
set->list[free].free_next = -1;
|
||||
return 1;
|
||||
}
|
||||
|
||||
int via_setDel(set_t * set, ITEM_TYPE item)
|
||||
{
|
||||
int alloc = set->alloc;
|
||||
int prev = -1;
|
||||
|
||||
while (alloc != -1) {
|
||||
if (set->list[alloc].val == item) {
|
||||
if (prev != -1)
|
||||
set->list[prev].alloc_next =
|
||||
set->list[alloc].alloc_next;
|
||||
else
|
||||
set->alloc = set->list[alloc].alloc_next;
|
||||
break;
|
||||
}
|
||||
prev = alloc;
|
||||
alloc = set->list[alloc].alloc_next;
|
||||
}
|
||||
|
||||
if (alloc == -1)
|
||||
return 0;
|
||||
|
||||
set->list[alloc].free_next = set->free;
|
||||
set->free = alloc;
|
||||
set->list[alloc].alloc_next = -1;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* setFirst -> setAdd -> setNext is wrong */
|
||||
|
||||
int via_setFirst(set_t * set, ITEM_TYPE * item)
|
||||
{
|
||||
if (set->alloc == -1)
|
||||
return 0;
|
||||
|
||||
*item = set->list[set->alloc].val;
|
||||
set->trace = set->list[set->alloc].alloc_next;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int via_setNext(set_t * set, ITEM_TYPE * item)
|
||||
{
|
||||
if (set->trace == -1)
|
||||
return 0;
|
||||
|
||||
*item = set->list[set->trace].val;
|
||||
set->trace = set->list[set->trace].alloc_next;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int via_setDestroy(set_t * set)
|
||||
{
|
||||
drm_free(set, sizeof(set_t), DRM_MEM_DRIVER);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
#define ISFREE(bptr) ((bptr)->free)
|
||||
|
||||
#define fprintf(fmt, arg...) do{}while(0)
|
||||
|
||||
memHeap_t *via_mmInit(int ofs, int size)
|
||||
{
|
||||
PMemBlock blocks;
|
||||
|
||||
if (size <= 0)
|
||||
return 0;
|
||||
|
||||
blocks = (TMemBlock *) drm_calloc(1, sizeof(TMemBlock), DRM_MEM_DRIVER);
|
||||
|
||||
if (blocks) {
|
||||
blocks->ofs = ofs;
|
||||
blocks->size = size;
|
||||
blocks->free = 1;
|
||||
return (memHeap_t *) blocks;
|
||||
} else
|
||||
return 0;
|
||||
}
|
||||
|
||||
static TMemBlock *SliceBlock(TMemBlock * p,
|
||||
int startofs, int size,
|
||||
int reserved, int alignment)
|
||||
{
|
||||
TMemBlock *newblock;
|
||||
|
||||
/* break left */
|
||||
if (startofs > p->ofs) {
|
||||
newblock =
|
||||
(TMemBlock *) drm_calloc(1, sizeof(TMemBlock),
|
||||
DRM_MEM_DRIVER);
|
||||
newblock->ofs = startofs;
|
||||
newblock->size = p->size - (startofs - p->ofs);
|
||||
newblock->free = 1;
|
||||
newblock->next = p->next;
|
||||
p->size -= newblock->size;
|
||||
p->next = newblock;
|
||||
p = newblock;
|
||||
}
|
||||
|
||||
/* break right */
|
||||
if (size < p->size) {
|
||||
newblock =
|
||||
(TMemBlock *) drm_calloc(1, sizeof(TMemBlock),
|
||||
DRM_MEM_DRIVER);
|
||||
newblock->ofs = startofs + size;
|
||||
newblock->size = p->size - size;
|
||||
newblock->free = 1;
|
||||
newblock->next = p->next;
|
||||
p->size = size;
|
||||
p->next = newblock;
|
||||
}
|
||||
|
||||
/* p = middle block */
|
||||
p->align = alignment;
|
||||
p->free = 0;
|
||||
p->reserved = reserved;
|
||||
return p;
|
||||
}
|
||||
|
||||
PMemBlock via_mmAllocMem(memHeap_t * heap, int size, int align2,
|
||||
int startSearch)
|
||||
{
|
||||
int mask, startofs, endofs;
|
||||
TMemBlock *p;
|
||||
|
||||
if (!heap || align2 < 0 || size <= 0)
|
||||
return NULL;
|
||||
|
||||
mask = (1 << align2) - 1;
|
||||
startofs = 0;
|
||||
p = (TMemBlock *) heap;
|
||||
|
||||
while (p) {
|
||||
if (ISFREE(p)) {
|
||||
startofs = (p->ofs + mask) & ~mask;
|
||||
|
||||
if (startofs < startSearch)
|
||||
startofs = startSearch;
|
||||
|
||||
endofs = startofs + size;
|
||||
|
||||
if (endofs <= (p->ofs + p->size))
|
||||
break;
|
||||
}
|
||||
|
||||
p = p->next;
|
||||
}
|
||||
|
||||
if (!p)
|
||||
return NULL;
|
||||
|
||||
p = SliceBlock(p, startofs, size, 0, mask + 1);
|
||||
p->heap = heap;
|
||||
|
||||
return p;
|
||||
}
|
||||
|
||||
static __inline__ int Join2Blocks(TMemBlock * p)
|
||||
{
|
||||
if (p->free && p->next && p->next->free) {
|
||||
TMemBlock *q = p->next;
|
||||
p->size += q->size;
|
||||
p->next = q->next;
|
||||
drm_free(q, sizeof(TMemBlock), DRM_MEM_DRIVER);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int via_mmFreeMem(PMemBlock b)
|
||||
{
|
||||
TMemBlock *p, *prev;
|
||||
|
||||
if (!b)
|
||||
return 0;
|
||||
|
||||
if (!b->heap) {
|
||||
fprintf(stderr, "no heap\n");
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
p = b->heap;
|
||||
prev = NULL;
|
||||
|
||||
while (p && p != b) {
|
||||
prev = p;
|
||||
p = p->next;
|
||||
}
|
||||
|
||||
if (!p || p->free || p->reserved) {
|
||||
if (!p)
|
||||
fprintf(stderr, "block not found in heap\n");
|
||||
else if (p->free)
|
||||
fprintf(stderr, "block already free\n");
|
||||
else
|
||||
fprintf(stderr, "block is reserved\n");
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
p->free = 1;
|
||||
Join2Blocks(p);
|
||||
|
||||
if (prev)
|
||||
Join2Blocks(prev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
104
drivers/char/drm/via_ds.h
Normal file
104
drivers/char/drm/via_ds.h
Normal file
@ -0,0 +1,104 @@
|
||||
/*
|
||||
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
|
||||
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
|
||||
* Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
|
||||
* All rights reserved.
|
||||
*
|
||||
* 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, sub license,
|
||||
* 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 (including the
|
||||
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
|
||||
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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.
|
||||
*/
|
||||
#ifndef _via_ds_h_
|
||||
#define _via_ds_h_
|
||||
|
||||
#include "drmP.h"
|
||||
|
||||
/* Set Data Structure */
|
||||
#define SET_SIZE 5000
|
||||
typedef unsigned long ITEM_TYPE;
|
||||
|
||||
typedef struct {
|
||||
ITEM_TYPE val;
|
||||
int alloc_next, free_next;
|
||||
} list_item_t;
|
||||
|
||||
typedef struct {
|
||||
int alloc;
|
||||
int free;
|
||||
int trace;
|
||||
list_item_t list[SET_SIZE];
|
||||
} set_t;
|
||||
|
||||
set_t *via_setInit(void);
|
||||
int via_setAdd(set_t * set, ITEM_TYPE item);
|
||||
int via_setDel(set_t * set, ITEM_TYPE item);
|
||||
int via_setFirst(set_t * set, ITEM_TYPE * item);
|
||||
int via_setNext(set_t * set, ITEM_TYPE * item);
|
||||
int via_setDestroy(set_t * set);
|
||||
|
||||
#endif
|
||||
|
||||
#ifndef MM_INC
|
||||
#define MM_INC
|
||||
|
||||
struct mem_block_t {
|
||||
struct mem_block_t *next;
|
||||
struct mem_block_t *heap;
|
||||
int ofs, size;
|
||||
int align;
|
||||
int free:1;
|
||||
int reserved:1;
|
||||
};
|
||||
typedef struct mem_block_t TMemBlock;
|
||||
typedef struct mem_block_t *PMemBlock;
|
||||
|
||||
/* a heap is just the first block in a chain */
|
||||
typedef struct mem_block_t memHeap_t;
|
||||
|
||||
static __inline__ int mmBlockSize(PMemBlock b)
|
||||
{
|
||||
return b->size;
|
||||
}
|
||||
|
||||
static __inline__ int mmOffset(PMemBlock b)
|
||||
{
|
||||
return b->ofs;
|
||||
}
|
||||
|
||||
static __inline__ void mmMarkReserved(PMemBlock b)
|
||||
{
|
||||
b->reserved = 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* input: total size in bytes
|
||||
* return: a heap pointer if OK, NULL if error
|
||||
*/
|
||||
memHeap_t *via_mmInit(int ofs, int size);
|
||||
|
||||
PMemBlock via_mmAllocMem(memHeap_t * heap, int size, int align2,
|
||||
int startSearch);
|
||||
|
||||
/*
|
||||
* Free block starts at offset
|
||||
* input: pointer to a block
|
||||
* return: 0 if OK, -1 if error
|
||||
*/
|
||||
int via_mmFreeMem(PMemBlock b);
|
||||
|
||||
#endif
|
||||
339
drivers/char/drm/via_irq.c
Normal file
339
drivers/char/drm/via_irq.c
Normal file
@ -0,0 +1,339 @@
|
||||
/* via_irq.c
|
||||
*
|
||||
* Copyright 2004 BEAM Ltd.
|
||||
* Copyright 2002 Tungsten Graphics, Inc.
|
||||
* Copyright 2005 Thomas Hellstrom.
|
||||
* All Rights Reserved.
|
||||
*
|
||||
* 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 (including the next
|
||||
* paragraph) 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
|
||||
* BEAM LTD, TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
|
||||
*
|
||||
* Authors:
|
||||
* Terry Barnaby <terry1@beam.ltd.uk>
|
||||
* Keith Whitwell <keith@tungstengraphics.com>
|
||||
* Thomas Hellstrom <unichrome@shipmail.org>
|
||||
*
|
||||
* This code provides standard DRM access to the Via Unichrome / Pro Vertical blank
|
||||
* interrupt, as well as an infrastructure to handle other interrupts of the chip.
|
||||
* The refresh rate is also calculated for video playback sync purposes.
|
||||
*/
|
||||
|
||||
#include "drmP.h"
|
||||
#include "drm.h"
|
||||
#include "via_drm.h"
|
||||
#include "via_drv.h"
|
||||
|
||||
#define VIA_REG_INTERRUPT 0x200
|
||||
|
||||
/* VIA_REG_INTERRUPT */
|
||||
#define VIA_IRQ_GLOBAL (1 << 31)
|
||||
#define VIA_IRQ_VBLANK_ENABLE (1 << 19)
|
||||
#define VIA_IRQ_VBLANK_PENDING (1 << 3)
|
||||
#define VIA_IRQ_HQV0_ENABLE (1 << 11)
|
||||
#define VIA_IRQ_HQV1_ENABLE (1 << 25)
|
||||
#define VIA_IRQ_HQV0_PENDING (1 << 9)
|
||||
#define VIA_IRQ_HQV1_PENDING (1 << 10)
|
||||
|
||||
/*
|
||||
* Device-specific IRQs go here. This type might need to be extended with
|
||||
* the register if there are multiple IRQ control registers.
|
||||
* Currently we activate the HQV interrupts of Unichrome Pro group A.
|
||||
*/
|
||||
|
||||
static maskarray_t via_pro_group_a_irqs[] = {
|
||||
{VIA_IRQ_HQV0_ENABLE, VIA_IRQ_HQV0_PENDING, 0x000003D0, 0x00008010, 0x00000000 },
|
||||
{VIA_IRQ_HQV1_ENABLE, VIA_IRQ_HQV1_PENDING, 0x000013D0, 0x00008010, 0x00000000 }};
|
||||
static int via_num_pro_group_a = sizeof(via_pro_group_a_irqs)/sizeof(maskarray_t);
|
||||
|
||||
static maskarray_t via_unichrome_irqs[] = {};
|
||||
static int via_num_unichrome = sizeof(via_unichrome_irqs)/sizeof(maskarray_t);
|
||||
|
||||
|
||||
static unsigned time_diff(struct timeval *now,struct timeval *then)
|
||||
{
|
||||
return (now->tv_usec >= then->tv_usec) ?
|
||||
now->tv_usec - then->tv_usec :
|
||||
1000000 - (then->tv_usec - now->tv_usec);
|
||||
}
|
||||
|
||||
irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS)
|
||||
{
|
||||
drm_device_t *dev = (drm_device_t *) arg;
|
||||
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
|
||||
u32 status;
|
||||
int handled = 0;
|
||||
struct timeval cur_vblank;
|
||||
drm_via_irq_t *cur_irq = dev_priv->via_irqs;
|
||||
int i;
|
||||
|
||||
status = VIA_READ(VIA_REG_INTERRUPT);
|
||||
if (status & VIA_IRQ_VBLANK_PENDING) {
|
||||
atomic_inc(&dev->vbl_received);
|
||||
if (!(atomic_read(&dev->vbl_received) & 0x0F)) {
|
||||
do_gettimeofday(&cur_vblank);
|
||||
if (dev_priv->last_vblank_valid) {
|
||||
dev_priv->usec_per_vblank =
|
||||
time_diff( &cur_vblank,&dev_priv->last_vblank) >> 4;
|
||||
}
|
||||
dev_priv->last_vblank = cur_vblank;
|
||||
dev_priv->last_vblank_valid = 1;
|
||||
}
|
||||
if (!(atomic_read(&dev->vbl_received) & 0xFF)) {
|
||||
DRM_DEBUG("US per vblank is: %u\n",
|
||||
dev_priv->usec_per_vblank);
|
||||
}
|
||||
DRM_WAKEUP(&dev->vbl_queue);
|
||||
drm_vbl_send_signals(dev);
|
||||
handled = 1;
|
||||
}
|
||||
|
||||
|
||||
for (i=0; i<dev_priv->num_irqs; ++i) {
|
||||
if (status & cur_irq->pending_mask) {
|
||||
atomic_inc( &cur_irq->irq_received );
|
||||
DRM_WAKEUP( &cur_irq->irq_queue );
|
||||
handled = 1;
|
||||
}
|
||||
cur_irq++;
|
||||
}
|
||||
|
||||
/* Acknowlege interrupts */
|
||||
VIA_WRITE(VIA_REG_INTERRUPT, status);
|
||||
|
||||
|
||||
if (handled)
|
||||
return IRQ_HANDLED;
|
||||
else
|
||||
return IRQ_NONE;
|
||||
}
|
||||
|
||||
static __inline__ void viadrv_acknowledge_irqs(drm_via_private_t * dev_priv)
|
||||
{
|
||||
u32 status;
|
||||
|
||||
if (dev_priv) {
|
||||
/* Acknowlege interrupts */
|
||||
status = VIA_READ(VIA_REG_INTERRUPT);
|
||||
VIA_WRITE(VIA_REG_INTERRUPT, status |
|
||||
dev_priv->irq_pending_mask);
|
||||
}
|
||||
}
|
||||
|
||||
int via_driver_vblank_wait(drm_device_t * dev, unsigned int *sequence)
|
||||
{
|
||||
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
|
||||
unsigned int cur_vblank;
|
||||
int ret = 0;
|
||||
|
||||
DRM_DEBUG("viadrv_vblank_wait\n");
|
||||
if (!dev_priv) {
|
||||
DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
viadrv_acknowledge_irqs(dev_priv);
|
||||
|
||||
/* Assume that the user has missed the current sequence number
|
||||
* by about a day rather than she wants to wait for years
|
||||
* using vertical blanks...
|
||||
*/
|
||||
|
||||
DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ,
|
||||
(((cur_vblank = atomic_read(&dev->vbl_received)) -
|
||||
*sequence) <= (1 << 23)));
|
||||
|
||||
*sequence = cur_vblank;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int
|
||||
via_driver_irq_wait(drm_device_t * dev, unsigned int irq, int force_sequence,
|
||||
unsigned int *sequence)
|
||||
{
|
||||
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
|
||||
unsigned int cur_irq_sequence;
|
||||
drm_via_irq_t *cur_irq = dev_priv->via_irqs;
|
||||
int ret = 0;
|
||||
maskarray_t *masks = dev_priv->irq_masks;
|
||||
|
||||
DRM_DEBUG("%s\n", __FUNCTION__);
|
||||
|
||||
if (!dev_priv) {
|
||||
DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
|
||||
return DRM_ERR(EINVAL);
|
||||
}
|
||||
|
||||
if (irq >= dev_priv->num_irqs ) {
|
||||
DRM_ERROR("%s Trying to wait on unknown irq %d\n", __FUNCTION__, irq);
|
||||
return DRM_ERR(EINVAL);
|
||||
}
|
||||
|
||||
cur_irq += irq;
|
||||
|
||||
if (masks[irq][2] && !force_sequence) {
|
||||
DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ,
|
||||
((VIA_READ(masks[irq][2]) & masks[irq][3]) == masks[irq][4]));
|
||||
cur_irq_sequence = atomic_read(&cur_irq->irq_received);
|
||||
} else {
|
||||
DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ,
|
||||
(((cur_irq_sequence = atomic_read(&cur_irq->irq_received)) -
|
||||
*sequence) <= (1 << 23)));
|
||||
}
|
||||
*sequence = cur_irq_sequence;
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* drm_dma.h hooks
|
||||
*/
|
||||
|
||||
void via_driver_irq_preinstall(drm_device_t * dev)
|
||||
{
|
||||
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
|
||||
u32 status;
|
||||
drm_via_irq_t *cur_irq = dev_priv->via_irqs;
|
||||
int i;
|
||||
|
||||
DRM_DEBUG("driver_irq_preinstall: dev_priv: %p\n", dev_priv);
|
||||
if (dev_priv) {
|
||||
|
||||
dev_priv->irq_enable_mask = VIA_IRQ_VBLANK_ENABLE;
|
||||
dev_priv->irq_pending_mask = VIA_IRQ_VBLANK_PENDING;
|
||||
|
||||
dev_priv->irq_masks = (dev_priv->pro_group_a) ?
|
||||
via_pro_group_a_irqs : via_unichrome_irqs;
|
||||
dev_priv->num_irqs = (dev_priv->pro_group_a) ?
|
||||
via_num_pro_group_a : via_num_unichrome;
|
||||
|
||||
for(i=0; i < dev_priv->num_irqs; ++i) {
|
||||
atomic_set(&cur_irq->irq_received, 0);
|
||||
cur_irq->enable_mask = dev_priv->irq_masks[i][0];
|
||||
cur_irq->pending_mask = dev_priv->irq_masks[i][1];
|
||||
DRM_INIT_WAITQUEUE( &cur_irq->irq_queue );
|
||||
dev_priv->irq_enable_mask |= cur_irq->enable_mask;
|
||||
dev_priv->irq_pending_mask |= cur_irq->pending_mask;
|
||||
cur_irq++;
|
||||
|
||||
DRM_DEBUG("Initializing IRQ %d\n", i);
|
||||
}
|
||||
|
||||
dev_priv->last_vblank_valid = 0;
|
||||
|
||||
// Clear VSync interrupt regs
|
||||
status = VIA_READ(VIA_REG_INTERRUPT);
|
||||
VIA_WRITE(VIA_REG_INTERRUPT, status &
|
||||
~(dev_priv->irq_enable_mask));
|
||||
|
||||
/* Clear bits if they're already high */
|
||||
viadrv_acknowledge_irqs(dev_priv);
|
||||
}
|
||||
}
|
||||
|
||||
void via_driver_irq_postinstall(drm_device_t * dev)
|
||||
{
|
||||
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
|
||||
u32 status;
|
||||
|
||||
DRM_DEBUG("via_driver_irq_postinstall\n");
|
||||
if (dev_priv) {
|
||||
status = VIA_READ(VIA_REG_INTERRUPT);
|
||||
VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_GLOBAL
|
||||
| dev_priv->irq_enable_mask);
|
||||
|
||||
/* Some magic, oh for some data sheets ! */
|
||||
|
||||
VIA_WRITE8(0x83d4, 0x11);
|
||||
VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30);
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
void via_driver_irq_uninstall(drm_device_t * dev)
|
||||
{
|
||||
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
|
||||
u32 status;
|
||||
|
||||
DRM_DEBUG("driver_irq_uninstall)\n");
|
||||
if (dev_priv) {
|
||||
|
||||
/* Some more magic, oh for some data sheets ! */
|
||||
|
||||
VIA_WRITE8(0x83d4, 0x11);
|
||||
VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) & ~0x30);
|
||||
|
||||
status = VIA_READ(VIA_REG_INTERRUPT);
|
||||
VIA_WRITE(VIA_REG_INTERRUPT, status &
|
||||
~(VIA_IRQ_VBLANK_ENABLE | dev_priv->irq_enable_mask));
|
||||
}
|
||||
}
|
||||
|
||||
int via_wait_irq(DRM_IOCTL_ARGS)
|
||||
{
|
||||
drm_file_t *priv = filp->private_data;
|
||||
drm_device_t *dev = priv->head->dev;
|
||||
drm_via_irqwait_t __user *argp = (void __user *)data;
|
||||
drm_via_irqwait_t irqwait;
|
||||
struct timeval now;
|
||||
int ret = 0;
|
||||
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
|
||||
drm_via_irq_t *cur_irq = dev_priv->via_irqs;
|
||||
int force_sequence;
|
||||
|
||||
if (!dev->irq)
|
||||
return DRM_ERR(EINVAL);
|
||||
|
||||
DRM_COPY_FROM_USER_IOCTL(irqwait, argp, sizeof(irqwait));
|
||||
if (irqwait.request.irq >= dev_priv->num_irqs) {
|
||||
DRM_ERROR("%s Trying to wait on unknown irq %d\n", __FUNCTION__,
|
||||
irqwait.request.irq);
|
||||
return DRM_ERR(EINVAL);
|
||||
}
|
||||
|
||||
cur_irq += irqwait.request.irq;
|
||||
|
||||
switch (irqwait.request.type & ~VIA_IRQ_FLAGS_MASK) {
|
||||
case VIA_IRQ_RELATIVE:
|
||||
irqwait.request.sequence += atomic_read(&cur_irq->irq_received);
|
||||
irqwait.request.type &= ~_DRM_VBLANK_RELATIVE;
|
||||
case VIA_IRQ_ABSOLUTE:
|
||||
break;
|
||||
default:
|
||||
return DRM_ERR(EINVAL);
|
||||
}
|
||||
|
||||
if (irqwait.request.type & VIA_IRQ_SIGNAL) {
|
||||
DRM_ERROR("%s Signals on Via IRQs not implemented yet.\n",
|
||||
__FUNCTION__);
|
||||
return DRM_ERR(EINVAL);
|
||||
}
|
||||
|
||||
force_sequence = (irqwait.request.type & VIA_IRQ_FORCE_SEQUENCE);
|
||||
|
||||
ret = via_driver_irq_wait(dev, irqwait.request.irq, force_sequence,
|
||||
&irqwait.request.sequence);
|
||||
do_gettimeofday(&now);
|
||||
irqwait.reply.tval_sec = now.tv_sec;
|
||||
irqwait.reply.tval_usec = now.tv_usec;
|
||||
|
||||
DRM_COPY_TO_USER_IOCTL(argp, irqwait, sizeof(irqwait));
|
||||
|
||||
return ret;
|
||||
}
|
||||
110
drivers/char/drm/via_map.c
Normal file
110
drivers/char/drm/via_map.c
Normal file
@ -0,0 +1,110 @@
|
||||
/*
|
||||
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
|
||||
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
|
||||
*
|
||||
* 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, sub license,
|
||||
* 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 (including the
|
||||
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
|
||||
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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.
|
||||
*/
|
||||
#include "drmP.h"
|
||||
#include "via_drm.h"
|
||||
#include "via_drv.h"
|
||||
|
||||
static int via_do_init_map(drm_device_t * dev, drm_via_init_t * init)
|
||||
{
|
||||
drm_via_private_t *dev_priv;
|
||||
|
||||
DRM_DEBUG("%s\n", __FUNCTION__);
|
||||
|
||||
dev_priv = drm_alloc(sizeof(drm_via_private_t), DRM_MEM_DRIVER);
|
||||
if (dev_priv == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
memset(dev_priv, 0, sizeof(drm_via_private_t));
|
||||
|
||||
DRM_GETSAREA();
|
||||
if (!dev_priv->sarea) {
|
||||
DRM_ERROR("could not find sarea!\n");
|
||||
dev->dev_private = (void *)dev_priv;
|
||||
via_do_cleanup_map(dev);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
dev_priv->fb = drm_core_findmap(dev, init->fb_offset);
|
||||
if (!dev_priv->fb) {
|
||||
DRM_ERROR("could not find framebuffer!\n");
|
||||
dev->dev_private = (void *)dev_priv;
|
||||
via_do_cleanup_map(dev);
|
||||
return -EINVAL;
|
||||
}
|
||||
dev_priv->mmio = drm_core_findmap(dev, init->mmio_offset);
|
||||
if (!dev_priv->mmio) {
|
||||
DRM_ERROR("could not find mmio region!\n");
|
||||
dev->dev_private = (void *)dev_priv;
|
||||
via_do_cleanup_map(dev);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
dev_priv->sarea_priv =
|
||||
(drm_via_sarea_t *) ((u8 *) dev_priv->sarea->handle +
|
||||
init->sarea_priv_offset);
|
||||
|
||||
dev_priv->agpAddr = init->agpAddr;
|
||||
|
||||
via_init_futex( dev_priv );
|
||||
dev_priv->pro_group_a = (dev->pdev->device == 0x3118);
|
||||
|
||||
dev->dev_private = (void *)dev_priv;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int via_do_cleanup_map(drm_device_t * dev)
|
||||
{
|
||||
if (dev->dev_private) {
|
||||
|
||||
drm_via_private_t *dev_priv = dev->dev_private;
|
||||
|
||||
via_dma_cleanup(dev);
|
||||
|
||||
drm_free(dev_priv, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
|
||||
dev->dev_private = NULL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int via_map_init(DRM_IOCTL_ARGS)
|
||||
{
|
||||
DRM_DEVICE;
|
||||
drm_via_init_t init;
|
||||
|
||||
DRM_DEBUG("%s\n", __FUNCTION__);
|
||||
|
||||
DRM_COPY_FROM_USER_IOCTL(init, (drm_via_init_t *) data, sizeof(init));
|
||||
|
||||
switch (init.func) {
|
||||
case VIA_INIT_MAP:
|
||||
return via_do_init_map(dev, &init);
|
||||
case VIA_CLEANUP_MAP:
|
||||
return via_do_cleanup_map(dev);
|
||||
}
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
|
||||
358
drivers/char/drm/via_mm.c
Normal file
358
drivers/char/drm/via_mm.c
Normal file
@ -0,0 +1,358 @@
|
||||
/*
|
||||
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
|
||||
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
|
||||
*
|
||||
* 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, sub license,
|
||||
* 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 (including the
|
||||
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
|
||||
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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.
|
||||
*/
|
||||
#include "drmP.h"
|
||||
#include "via_drm.h"
|
||||
#include "via_drv.h"
|
||||
#include "via_ds.h"
|
||||
#include "via_mm.h"
|
||||
|
||||
#define MAX_CONTEXT 100
|
||||
|
||||
typedef struct {
|
||||
int used;
|
||||
int context;
|
||||
set_t *sets[2]; /* 0 for frame buffer, 1 for AGP , 2 for System */
|
||||
} via_context_t;
|
||||
|
||||
static via_context_t global_ppriv[MAX_CONTEXT];
|
||||
|
||||
static int via_agp_alloc(drm_via_mem_t * mem);
|
||||
static int via_agp_free(drm_via_mem_t * mem);
|
||||
static int via_fb_alloc(drm_via_mem_t * mem);
|
||||
static int via_fb_free(drm_via_mem_t * mem);
|
||||
|
||||
static int add_alloc_set(int context, int type, unsigned int val)
|
||||
{
|
||||
int i, retval = 0;
|
||||
|
||||
for (i = 0; i < MAX_CONTEXT; i++) {
|
||||
if (global_ppriv[i].used && global_ppriv[i].context == context) {
|
||||
retval = via_setAdd(global_ppriv[i].sets[type], val);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
static int del_alloc_set(int context, int type, unsigned int val)
|
||||
{
|
||||
int i, retval = 0;
|
||||
|
||||
for (i = 0; i < MAX_CONTEXT; i++)
|
||||
if (global_ppriv[i].used && global_ppriv[i].context == context) {
|
||||
retval = via_setDel(global_ppriv[i].sets[type], val);
|
||||
break;
|
||||
}
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
/* agp memory management */
|
||||
static memHeap_t *AgpHeap = NULL;
|
||||
|
||||
int via_agp_init(DRM_IOCTL_ARGS)
|
||||
{
|
||||
drm_via_agp_t agp;
|
||||
|
||||
DRM_COPY_FROM_USER_IOCTL(agp, (drm_via_agp_t *) data, sizeof(agp));
|
||||
|
||||
AgpHeap = via_mmInit(agp.offset, agp.size);
|
||||
|
||||
DRM_DEBUG("offset = %lu, size = %lu", (unsigned long)agp.offset, (unsigned long)agp.size);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* fb memory management */
|
||||
static memHeap_t *FBHeap = NULL;
|
||||
|
||||
int via_fb_init(DRM_IOCTL_ARGS)
|
||||
{
|
||||
drm_via_fb_t fb;
|
||||
|
||||
DRM_COPY_FROM_USER_IOCTL(fb, (drm_via_fb_t *) data, sizeof(fb));
|
||||
|
||||
FBHeap = via_mmInit(fb.offset, fb.size);
|
||||
|
||||
DRM_DEBUG("offset = %lu, size = %lu", (unsigned long)fb.offset, (unsigned long)fb.size);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int via_init_context(struct drm_device *dev, int context)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < MAX_CONTEXT; i++)
|
||||
if (global_ppriv[i].used &&
|
||||
(global_ppriv[i].context == context))
|
||||
break;
|
||||
|
||||
if (i >= MAX_CONTEXT) {
|
||||
for (i = 0; i < MAX_CONTEXT; i++) {
|
||||
if (!global_ppriv[i].used) {
|
||||
global_ppriv[i].context = context;
|
||||
global_ppriv[i].used = 1;
|
||||
global_ppriv[i].sets[0] = via_setInit();
|
||||
global_ppriv[i].sets[1] = via_setInit();
|
||||
DRM_DEBUG("init allocation set, socket=%d,"
|
||||
" context = %d\n", i, context);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if ((i >= MAX_CONTEXT) || (global_ppriv[i].sets[0] == NULL) ||
|
||||
(global_ppriv[i].sets[1] == NULL)) {
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int via_final_context(struct drm_device *dev, int context)
|
||||
{
|
||||
int i;
|
||||
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
|
||||
|
||||
for (i = 0; i < MAX_CONTEXT; i++)
|
||||
if (global_ppriv[i].used &&
|
||||
(global_ppriv[i].context == context))
|
||||
break;
|
||||
|
||||
if (i < MAX_CONTEXT) {
|
||||
set_t *set;
|
||||
ITEM_TYPE item;
|
||||
int retval;
|
||||
|
||||
DRM_DEBUG("find socket %d, context = %d\n", i, context);
|
||||
|
||||
/* Video Memory */
|
||||
set = global_ppriv[i].sets[0];
|
||||
retval = via_setFirst(set, &item);
|
||||
while (retval) {
|
||||
DRM_DEBUG("free video memory 0x%lx\n", item);
|
||||
via_mmFreeMem((PMemBlock) item);
|
||||
retval = via_setNext(set, &item);
|
||||
}
|
||||
via_setDestroy(set);
|
||||
|
||||
/* AGP Memory */
|
||||
set = global_ppriv[i].sets[1];
|
||||
retval = via_setFirst(set, &item);
|
||||
while (retval) {
|
||||
DRM_DEBUG("free agp memory 0x%lx\n", item);
|
||||
via_mmFreeMem((PMemBlock) item);
|
||||
retval = via_setNext(set, &item);
|
||||
}
|
||||
via_setDestroy(set);
|
||||
global_ppriv[i].used = 0;
|
||||
}
|
||||
via_release_futex(dev_priv, context);
|
||||
|
||||
|
||||
#if defined(__linux__)
|
||||
/* Linux specific until context tracking code gets ported to BSD */
|
||||
/* Last context, perform cleanup */
|
||||
if (dev->ctx_count == 1 && dev->dev_private) {
|
||||
DRM_DEBUG("Last Context\n");
|
||||
if (dev->irq)
|
||||
drm_irq_uninstall(dev);
|
||||
|
||||
via_cleanup_futex(dev_priv);
|
||||
via_do_cleanup_map(dev);
|
||||
}
|
||||
#endif
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int via_mem_alloc(DRM_IOCTL_ARGS)
|
||||
{
|
||||
drm_via_mem_t mem;
|
||||
|
||||
DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t *) data, sizeof(mem));
|
||||
|
||||
switch (mem.type) {
|
||||
case VIDEO:
|
||||
if (via_fb_alloc(&mem) < 0)
|
||||
return -EFAULT;
|
||||
DRM_COPY_TO_USER_IOCTL((drm_via_mem_t *) data, mem,
|
||||
sizeof(mem));
|
||||
return 0;
|
||||
case AGP:
|
||||
if (via_agp_alloc(&mem) < 0)
|
||||
return -EFAULT;
|
||||
DRM_COPY_TO_USER_IOCTL((drm_via_mem_t *) data, mem,
|
||||
sizeof(mem));
|
||||
return 0;
|
||||
}
|
||||
|
||||
return -EFAULT;
|
||||
}
|
||||
|
||||
static int via_fb_alloc(drm_via_mem_t * mem)
|
||||
{
|
||||
drm_via_mm_t fb;
|
||||
PMemBlock block;
|
||||
int retval = 0;
|
||||
|
||||
if (!FBHeap)
|
||||
return -1;
|
||||
|
||||
fb.size = mem->size;
|
||||
fb.context = mem->context;
|
||||
|
||||
block = via_mmAllocMem(FBHeap, fb.size, 5, 0);
|
||||
if (block) {
|
||||
fb.offset = block->ofs;
|
||||
fb.free = (unsigned long)block;
|
||||
if (!add_alloc_set(fb.context, VIDEO, fb.free)) {
|
||||
DRM_DEBUG("adding to allocation set fails\n");
|
||||
via_mmFreeMem((PMemBlock) fb.free);
|
||||
retval = -1;
|
||||
}
|
||||
} else {
|
||||
fb.offset = 0;
|
||||
fb.size = 0;
|
||||
fb.free = 0;
|
||||
retval = -1;
|
||||
}
|
||||
|
||||
mem->offset = fb.offset;
|
||||
mem->index = fb.free;
|
||||
|
||||
DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb.size,
|
||||
(int)fb.offset);
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
static int via_agp_alloc(drm_via_mem_t * mem)
|
||||
{
|
||||
drm_via_mm_t agp;
|
||||
PMemBlock block;
|
||||
int retval = 0;
|
||||
|
||||
if (!AgpHeap)
|
||||
return -1;
|
||||
|
||||
agp.size = mem->size;
|
||||
agp.context = mem->context;
|
||||
|
||||
block = via_mmAllocMem(AgpHeap, agp.size, 5, 0);
|
||||
if (block) {
|
||||
agp.offset = block->ofs;
|
||||
agp.free = (unsigned long)block;
|
||||
if (!add_alloc_set(agp.context, AGP, agp.free)) {
|
||||
DRM_DEBUG("adding to allocation set fails\n");
|
||||
via_mmFreeMem((PMemBlock) agp.free);
|
||||
retval = -1;
|
||||
}
|
||||
} else {
|
||||
agp.offset = 0;
|
||||
agp.size = 0;
|
||||
agp.free = 0;
|
||||
}
|
||||
|
||||
mem->offset = agp.offset;
|
||||
mem->index = agp.free;
|
||||
|
||||
DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size,
|
||||
(unsigned int)agp.offset);
|
||||
return retval;
|
||||
}
|
||||
|
||||
int via_mem_free(DRM_IOCTL_ARGS)
|
||||
{
|
||||
drm_via_mem_t mem;
|
||||
|
||||
DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t *) data, sizeof(mem));
|
||||
|
||||
switch (mem.type) {
|
||||
|
||||
case VIDEO:
|
||||
if (via_fb_free(&mem) == 0)
|
||||
return 0;
|
||||
break;
|
||||
case AGP:
|
||||
if (via_agp_free(&mem) == 0)
|
||||
return 0;
|
||||
break;
|
||||
}
|
||||
|
||||
return -EFAULT;
|
||||
}
|
||||
|
||||
static int via_fb_free(drm_via_mem_t * mem)
|
||||
{
|
||||
drm_via_mm_t fb;
|
||||
int retval = 0;
|
||||
|
||||
if (!FBHeap) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
fb.free = mem->index;
|
||||
fb.context = mem->context;
|
||||
|
||||
if (!fb.free) {
|
||||
return -1;
|
||||
|
||||
}
|
||||
|
||||
via_mmFreeMem((PMemBlock) fb.free);
|
||||
|
||||
if (!del_alloc_set(fb.context, VIDEO, fb.free)) {
|
||||
retval = -1;
|
||||
}
|
||||
|
||||
DRM_DEBUG("free fb, free = %ld\n", fb.free);
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
static int via_agp_free(drm_via_mem_t * mem)
|
||||
{
|
||||
drm_via_mm_t agp;
|
||||
|
||||
int retval = 0;
|
||||
|
||||
agp.free = mem->index;
|
||||
agp.context = mem->context;
|
||||
|
||||
if (!agp.free)
|
||||
return -1;
|
||||
|
||||
via_mmFreeMem((PMemBlock) agp.free);
|
||||
|
||||
if (!del_alloc_set(agp.context, AGP, agp.free)) {
|
||||
retval = -1;
|
||||
}
|
||||
|
||||
DRM_DEBUG("free agp, free = %ld\n", agp.free);
|
||||
|
||||
return retval;
|
||||
}
|
||||
40
drivers/char/drm/via_mm.h
Normal file
40
drivers/char/drm/via_mm.h
Normal file
@ -0,0 +1,40 @@
|
||||
/*
|
||||
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
|
||||
* Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
|
||||
*
|
||||
* 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, sub license,
|
||||
* 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 (including the
|
||||
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
|
||||
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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.
|
||||
*/
|
||||
#ifndef _via_drm_mm_h_
|
||||
#define _via_drm_mm_h_
|
||||
|
||||
typedef struct {
|
||||
unsigned int context;
|
||||
unsigned int size;
|
||||
unsigned long offset;
|
||||
unsigned long free;
|
||||
} drm_via_mm_t;
|
||||
|
||||
typedef struct {
|
||||
unsigned int size;
|
||||
unsigned long handle;
|
||||
void *virtual;
|
||||
} drm_via_dma_t;
|
||||
|
||||
#endif
|
||||
1061
drivers/char/drm/via_verifier.c
Normal file
1061
drivers/char/drm/via_verifier.c
Normal file
File diff suppressed because it is too large
Load Diff
61
drivers/char/drm/via_verifier.h
Normal file
61
drivers/char/drm/via_verifier.h
Normal file
@ -0,0 +1,61 @@
|
||||
/*
|
||||
* Copyright 2004 The Unichrome Project. All Rights Reserved.
|
||||
*
|
||||
* 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, sub license,
|
||||
* 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 (including the
|
||||
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE UNICHROME PROJECT, AND/OR ITS SUPPLIERS 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: Thomas Hellström 2004.
|
||||
*/
|
||||
|
||||
#ifndef _VIA_VERIFIER_H_
|
||||
#define _VIA_VERIFIER_H_
|
||||
|
||||
typedef enum{
|
||||
no_sequence = 0,
|
||||
z_address,
|
||||
dest_address,
|
||||
tex_address
|
||||
}drm_via_sequence_t;
|
||||
|
||||
|
||||
|
||||
typedef struct{
|
||||
unsigned texture;
|
||||
uint32_t z_addr;
|
||||
uint32_t d_addr;
|
||||
uint32_t t_addr[2][10];
|
||||
uint32_t pitch[2][10];
|
||||
uint32_t height[2][10];
|
||||
uint32_t tex_level_lo[2];
|
||||
uint32_t tex_level_hi[2];
|
||||
uint32_t tex_palette_size[2];
|
||||
drm_via_sequence_t unfinished;
|
||||
int agp_texture;
|
||||
int multitex;
|
||||
drm_device_t *dev;
|
||||
drm_map_t *map_cache;
|
||||
uint32_t vertex_count;
|
||||
int agp;
|
||||
const uint32_t *buf_start;
|
||||
} drm_via_state_t;
|
||||
|
||||
extern int via_verify_command_stream(const uint32_t * buf, unsigned int size,
|
||||
drm_device_t *dev, int agp);
|
||||
|
||||
#endif
|
||||
97
drivers/char/drm/via_video.c
Normal file
97
drivers/char/drm/via_video.c
Normal file
@ -0,0 +1,97 @@
|
||||
/*
|
||||
* Copyright 2005 Thomas Hellstrom. All Rights Reserved.
|
||||
*
|
||||
* 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, sub license,
|
||||
* 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 (including the
|
||||
* next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
|
||||
* THE AUTHOR(S), AND/OR THE COPYRIGHT HOLDER(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: Thomas Hellstrom 2005.
|
||||
*
|
||||
* Video and XvMC related functions.
|
||||
*/
|
||||
|
||||
#include "drmP.h"
|
||||
#include "via_drm.h"
|
||||
#include "via_drv.h"
|
||||
|
||||
void
|
||||
via_init_futex(drm_via_private_t *dev_priv)
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
DRM_DEBUG("%s\n", __FUNCTION__);
|
||||
|
||||
for (i = 0; i < VIA_NR_XVMC_LOCKS; ++i) {
|
||||
DRM_INIT_WAITQUEUE(&(dev_priv->decoder_queue[i]));
|
||||
XVMCLOCKPTR(dev_priv->sarea_priv, i)->lock = 0;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
via_cleanup_futex(drm_via_private_t *dev_priv)
|
||||
{
|
||||
}
|
||||
|
||||
void
|
||||
via_release_futex(drm_via_private_t *dev_priv, int context)
|
||||
{
|
||||
unsigned int i;
|
||||
volatile int *lock;
|
||||
|
||||
for (i=0; i < VIA_NR_XVMC_LOCKS; ++i) {
|
||||
lock = (int *) XVMCLOCKPTR(dev_priv->sarea_priv, i);
|
||||
if ( (_DRM_LOCKING_CONTEXT( *lock ) == context)) {
|
||||
if (_DRM_LOCK_IS_HELD( *lock ) && (*lock & _DRM_LOCK_CONT)) {
|
||||
DRM_WAKEUP( &(dev_priv->decoder_queue[i]));
|
||||
}
|
||||
*lock = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
via_decoder_futex(DRM_IOCTL_ARGS)
|
||||
{
|
||||
DRM_DEVICE;
|
||||
drm_via_futex_t fx;
|
||||
volatile int *lock;
|
||||
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
|
||||
drm_via_sarea_t *sAPriv = dev_priv->sarea_priv;
|
||||
int ret = 0;
|
||||
|
||||
DRM_DEBUG("%s\n", __FUNCTION__);
|
||||
|
||||
DRM_COPY_FROM_USER_IOCTL(fx, (drm_via_futex_t *) data, sizeof(fx));
|
||||
|
||||
if (fx.lock > VIA_NR_XVMC_LOCKS)
|
||||
return -EFAULT;
|
||||
|
||||
lock = (int *)XVMCLOCKPTR(sAPriv, fx.lock);
|
||||
|
||||
switch (fx.func) {
|
||||
case VIA_FUTEX_WAIT:
|
||||
DRM_WAIT_ON(ret, dev_priv->decoder_queue[fx.lock],
|
||||
(fx.ms / 10) * (DRM_HZ / 100), *lock != fx.val);
|
||||
return ret;
|
||||
case VIA_FUTEX_WAKE:
|
||||
DRM_WAKEUP(&(dev_priv->decoder_queue[fx.lock]));
|
||||
return 0;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user