diff options
Diffstat (limited to 'drivers/gpu/drm/mga')
| -rw-r--r-- | drivers/gpu/drm/mga/Makefile | 11 | ||||
| -rw-r--r-- | drivers/gpu/drm/mga/mga_dma.c | 1168 | ||||
| -rw-r--r-- | drivers/gpu/drm/mga/mga_drv.c | 104 | ||||
| -rw-r--r-- | drivers/gpu/drm/mga/mga_drv.h | 685 | ||||
| -rw-r--r-- | drivers/gpu/drm/mga/mga_ioc32.c | 197 | ||||
| -rw-r--r-- | drivers/gpu/drm/mga/mga_irq.c | 169 | ||||
| -rw-r--r-- | drivers/gpu/drm/mga/mga_state.c | 1099 | ||||
| -rw-r--r-- | drivers/gpu/drm/mga/mga_warp.c | 167 |
8 files changed, 3600 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mga/Makefile b/drivers/gpu/drm/mga/Makefile new file mode 100644 index 000000000..db07c7fcc --- /dev/null +++ b/drivers/gpu/drm/mga/Makefile @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Makefile for the drm device driver. This driver provides support for the +# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher. + +mga-y := mga_drv.o mga_dma.o mga_state.o mga_warp.o mga_irq.o + +mga-$(CONFIG_COMPAT) += mga_ioc32.o + +obj-$(CONFIG_DRM_MGA) += mga.o + diff --git a/drivers/gpu/drm/mga/mga_dma.c b/drivers/gpu/drm/mga/mga_dma.c new file mode 100644 index 000000000..331c2f0da --- /dev/null +++ b/drivers/gpu/drm/mga/mga_dma.c @@ -0,0 +1,1168 @@ +/* mga_dma.c -- DMA support for mga g200/g400 -*- linux-c -*- + * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * 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 + * PRECISION INSIGHT 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. + */ + +/* + * \file mga_dma.c + * DMA support for MGA G200 / G400. + * + * \author Rickard E. (Rik) Faith <faith@valinux.com> + * \author Jeff Hartmann <jhartmann@valinux.com> + * \author Keith Whitwell <keith@tungstengraphics.com> + * \author Gareth Hughes <gareth@valinux.com> + */ + +#include <linux/delay.h> + +#include "mga_drv.h" + +#define MGA_DEFAULT_USEC_TIMEOUT 10000 +#define MGA_FREELIST_DEBUG 0 + +#define MINIMAL_CLEANUP 0 +#define FULL_CLEANUP 1 +static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup); + +/* ================================================================ + * Engine control + */ + +int mga_do_wait_for_idle(drm_mga_private_t *dev_priv) +{ + u32 status = 0; + int i; + DRM_DEBUG("\n"); + + for (i = 0; i < dev_priv->usec_timeout; i++) { + status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK; + if (status == MGA_ENDPRDMASTS) { + MGA_WRITE8(MGA_CRTC_INDEX, 0); + return 0; + } + udelay(1); + } + +#if MGA_DMA_DEBUG + DRM_ERROR("failed!\n"); + DRM_INFO(" status=0x%08x\n", status); +#endif + return -EBUSY; +} + +static int mga_do_dma_reset(drm_mga_private_t *dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_primary_buffer_t *primary = &dev_priv->prim; + + DRM_DEBUG("\n"); + + /* The primary DMA stream should look like new right about now. + */ + primary->tail = 0; + primary->space = primary->size; + primary->last_flush = 0; + + sarea_priv->last_wrap = 0; + + /* FIXME: Reset counters, buffer ages etc... + */ + + /* FIXME: What else do we need to reinitialize? WARP stuff? + */ + + return 0; +} + +/* ================================================================ + * Primary DMA stream + */ + +void mga_do_dma_flush(drm_mga_private_t *dev_priv) +{ + drm_mga_primary_buffer_t *primary = &dev_priv->prim; + u32 head, tail; + u32 status = 0; + int i; + DMA_LOCALS; + DRM_DEBUG("\n"); + + /* We need to wait so that we can do an safe flush */ + for (i = 0; i < dev_priv->usec_timeout; i++) { + status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK; + if (status == MGA_ENDPRDMASTS) + break; + udelay(1); + } + + if (primary->tail == primary->last_flush) { + DRM_DEBUG(" bailing out...\n"); + return; + } + + tail = primary->tail + dev_priv->primary->offset; + + /* We need to pad the stream between flushes, as the card + * actually (partially?) reads the first of these commands. + * See page 4-16 in the G400 manual, middle of the page or so. + */ + BEGIN_DMA(1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); + + ADVANCE_DMA(); + + primary->last_flush = primary->tail; + + head = MGA_READ(MGA_PRIMADDRESS); + + if (head <= tail) + primary->space = primary->size - primary->tail; + else + primary->space = head - tail; + + DRM_DEBUG(" head = 0x%06lx\n", (unsigned long)(head - dev_priv->primary->offset)); + DRM_DEBUG(" tail = 0x%06lx\n", (unsigned long)(tail - dev_priv->primary->offset)); + DRM_DEBUG(" space = 0x%06x\n", primary->space); + + mga_flush_write_combine(); + MGA_WRITE(MGA_PRIMEND, tail | dev_priv->dma_access); + + DRM_DEBUG("done.\n"); +} + +void mga_do_dma_wrap_start(drm_mga_private_t *dev_priv) +{ + drm_mga_primary_buffer_t *primary = &dev_priv->prim; + u32 head, tail; + DMA_LOCALS; + DRM_DEBUG("\n"); + + BEGIN_DMA_WRAP(); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); + + ADVANCE_DMA(); + + tail = primary->tail + dev_priv->primary->offset; + + primary->tail = 0; + primary->last_flush = 0; + primary->last_wrap++; + + head = MGA_READ(MGA_PRIMADDRESS); + + if (head == dev_priv->primary->offset) + primary->space = primary->size; + else + primary->space = head - dev_priv->primary->offset; + + DRM_DEBUG(" head = 0x%06lx\n", (unsigned long)(head - dev_priv->primary->offset)); + DRM_DEBUG(" tail = 0x%06x\n", primary->tail); + DRM_DEBUG(" wrap = %d\n", primary->last_wrap); + DRM_DEBUG(" space = 0x%06x\n", primary->space); + + mga_flush_write_combine(); + MGA_WRITE(MGA_PRIMEND, tail | dev_priv->dma_access); + + set_bit(0, &primary->wrapped); + DRM_DEBUG("done.\n"); +} + +void mga_do_dma_wrap_end(drm_mga_private_t *dev_priv) +{ + drm_mga_primary_buffer_t *primary = &dev_priv->prim; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + u32 head = dev_priv->primary->offset; + DRM_DEBUG("\n"); + + sarea_priv->last_wrap++; + DRM_DEBUG(" wrap = %d\n", sarea_priv->last_wrap); + + mga_flush_write_combine(); + MGA_WRITE(MGA_PRIMADDRESS, head | MGA_DMA_GENERAL); + + clear_bit(0, &primary->wrapped); + DRM_DEBUG("done.\n"); +} + +/* ================================================================ + * Freelist management + */ + +#define MGA_BUFFER_USED (~0) +#define MGA_BUFFER_FREE 0 + +#if MGA_FREELIST_DEBUG +static void mga_freelist_print(struct drm_device *dev) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_freelist_t *entry; + + DRM_INFO("\n"); + DRM_INFO("current dispatch: last=0x%x done=0x%x\n", + dev_priv->sarea_priv->last_dispatch, + (unsigned int)(MGA_READ(MGA_PRIMADDRESS) - + dev_priv->primary->offset)); + DRM_INFO("current freelist:\n"); + + for (entry = dev_priv->head->next; entry; entry = entry->next) { + DRM_INFO(" %p idx=%2d age=0x%x 0x%06lx\n", + entry, entry->buf->idx, entry->age.head, + (unsigned long)(entry->age.head - dev_priv->primary->offset)); + } + DRM_INFO("\n"); +} +#endif + +static int mga_freelist_init(struct drm_device *dev, drm_mga_private_t *dev_priv) +{ + struct drm_device_dma *dma = dev->dma; + struct drm_buf *buf; + drm_mga_buf_priv_t *buf_priv; + drm_mga_freelist_t *entry; + int i; + DRM_DEBUG("count=%d\n", dma->buf_count); + + dev_priv->head = kzalloc(sizeof(drm_mga_freelist_t), GFP_KERNEL); + if (dev_priv->head == NULL) + return -ENOMEM; + + SET_AGE(&dev_priv->head->age, MGA_BUFFER_USED, 0); + + for (i = 0; i < dma->buf_count; i++) { + buf = dma->buflist[i]; + buf_priv = buf->dev_private; + + entry = kzalloc(sizeof(drm_mga_freelist_t), GFP_KERNEL); + if (entry == NULL) + return -ENOMEM; + + entry->next = dev_priv->head->next; + entry->prev = dev_priv->head; + SET_AGE(&entry->age, MGA_BUFFER_FREE, 0); + entry->buf = buf; + + if (dev_priv->head->next != NULL) + dev_priv->head->next->prev = entry; + if (entry->next == NULL) + dev_priv->tail = entry; + + buf_priv->list_entry = entry; + buf_priv->discard = 0; + buf_priv->dispatched = 0; + + dev_priv->head->next = entry; + } + + return 0; +} + +static void mga_freelist_cleanup(struct drm_device *dev) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_freelist_t *entry; + drm_mga_freelist_t *next; + DRM_DEBUG("\n"); + + entry = dev_priv->head; + while (entry) { + next = entry->next; + kfree(entry); + entry = next; + } + + dev_priv->head = dev_priv->tail = NULL; +} + +#if 0 +/* FIXME: Still needed? + */ +static void mga_freelist_reset(struct drm_device *dev) +{ + struct drm_device_dma *dma = dev->dma; + struct drm_buf *buf; + drm_mga_buf_priv_t *buf_priv; + int i; + + for (i = 0; i < dma->buf_count; i++) { + buf = dma->buflist[i]; + buf_priv = buf->dev_private; + SET_AGE(&buf_priv->list_entry->age, MGA_BUFFER_FREE, 0); + } +} +#endif + +static struct drm_buf *mga_freelist_get(struct drm_device * dev) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_freelist_t *next; + drm_mga_freelist_t *prev; + drm_mga_freelist_t *tail = dev_priv->tail; + u32 head, wrap; + DRM_DEBUG("\n"); + + head = MGA_READ(MGA_PRIMADDRESS); + wrap = dev_priv->sarea_priv->last_wrap; + + DRM_DEBUG(" tail=0x%06lx %d\n", + tail->age.head ? + (unsigned long)(tail->age.head - dev_priv->primary->offset) : 0, + tail->age.wrap); + DRM_DEBUG(" head=0x%06lx %d\n", + (unsigned long)(head - dev_priv->primary->offset), wrap); + + if (TEST_AGE(&tail->age, head, wrap)) { + prev = dev_priv->tail->prev; + next = dev_priv->tail; + prev->next = NULL; + next->prev = next->next = NULL; + dev_priv->tail = prev; + SET_AGE(&next->age, MGA_BUFFER_USED, 0); + return next->buf; + } + + DRM_DEBUG("returning NULL!\n"); + return NULL; +} + +int mga_freelist_put(struct drm_device *dev, struct drm_buf *buf) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_buf_priv_t *buf_priv = buf->dev_private; + drm_mga_freelist_t *head, *entry, *prev; + + DRM_DEBUG("age=0x%06lx wrap=%d\n", + (unsigned long)(buf_priv->list_entry->age.head - + dev_priv->primary->offset), + buf_priv->list_entry->age.wrap); + + entry = buf_priv->list_entry; + head = dev_priv->head; + + if (buf_priv->list_entry->age.head == MGA_BUFFER_USED) { + SET_AGE(&entry->age, MGA_BUFFER_FREE, 0); + prev = dev_priv->tail; + prev->next = entry; + entry->prev = prev; + entry->next = NULL; + } else { + prev = head->next; + head->next = entry; + prev->prev = entry; + entry->prev = head; + entry->next = prev; + } + + return 0; +} + +/* ================================================================ + * DMA initialization, cleanup + */ + +int mga_driver_load(struct drm_device *dev, unsigned long flags) +{ + struct pci_dev *pdev = to_pci_dev(dev->dev); + drm_mga_private_t *dev_priv; + int ret; + + /* There are PCI versions of the G450. These cards have the + * same PCI ID as the AGP G450, but have an additional PCI-to-PCI + * bridge chip. We detect these cards, which are not currently + * supported by this driver, by looking at the device ID of the + * bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the + * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the + * device. + */ + if ((pdev->device == 0x0525) && pdev->bus->self + && (pdev->bus->self->vendor == 0x3388) + && (pdev->bus->self->device == 0x0021) + && dev->agp) { + /* FIXME: This should be quirked in the pci core, but oh well + * the hw probably stopped existing. */ + arch_phys_wc_del(dev->agp->agp_mtrr); + kfree(dev->agp); + dev->agp = NULL; + } + dev_priv = kzalloc(sizeof(drm_mga_private_t), GFP_KERNEL); + if (!dev_priv) + return -ENOMEM; + + dev->dev_private = (void *)dev_priv; + + dev_priv->usec_timeout = MGA_DEFAULT_USEC_TIMEOUT; + dev_priv->chipset = flags; + + pci_set_master(pdev); + + dev_priv->mmio_base = pci_resource_start(pdev, 1); + dev_priv->mmio_size = pci_resource_len(pdev, 1); + + ret = drm_vblank_init(dev, 1); + + if (ret) { + (void) mga_driver_unload(dev); + return ret; + } + + return 0; +} + +#if IS_ENABLED(CONFIG_AGP) +/* + * Bootstrap the driver for AGP DMA. + * + * \todo + * Investigate whether there is any benefit to storing the WARP microcode in + * AGP memory. If not, the microcode may as well always be put in PCI + * memory. + * + * \todo + * This routine needs to set dma_bs->agp_mode to the mode actually configured + * in the hardware. Looking just at the Linux AGP driver code, I don't see + * an easy way to determine this. + * + * \sa mga_do_dma_bootstrap, mga_do_pci_dma_bootstrap + */ +static int mga_do_agp_dma_bootstrap(struct drm_device *dev, + drm_mga_dma_bootstrap_t *dma_bs) +{ + drm_mga_private_t *const dev_priv = + (drm_mga_private_t *) dev->dev_private; + unsigned int warp_size = MGA_WARP_UCODE_SIZE; + int err; + unsigned offset; + const unsigned secondary_size = dma_bs->secondary_bin_count + * dma_bs->secondary_bin_size; + const unsigned agp_size = (dma_bs->agp_size << 20); + struct drm_buf_desc req; + struct drm_agp_mode mode; + struct drm_agp_info info; + struct drm_agp_buffer agp_req; + struct drm_agp_binding bind_req; + + /* Acquire AGP. */ + err = drm_legacy_agp_acquire(dev); + if (err) { + DRM_ERROR("Unable to acquire AGP: %d\n", err); + return err; + } + + err = drm_legacy_agp_info(dev, &info); + if (err) { + DRM_ERROR("Unable to get AGP info: %d\n", err); + return err; + } + + mode.mode = (info.mode & ~0x07) | dma_bs->agp_mode; + err = drm_legacy_agp_enable(dev, mode); + if (err) { + DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode); + return err; + } + + /* In addition to the usual AGP mode configuration, the G200 AGP cards + * need to have the AGP mode "manually" set. + */ + + if (dev_priv->chipset == MGA_CARD_TYPE_G200) { + if (mode.mode & 0x02) + MGA_WRITE(MGA_AGP_PLL, MGA_AGP2XPLL_ENABLE); + else + MGA_WRITE(MGA_AGP_PLL, MGA_AGP2XPLL_DISABLE); + } + + /* Allocate and bind AGP memory. */ + agp_req.size = agp_size; + agp_req.type = 0; + err = drm_legacy_agp_alloc(dev, &agp_req); + if (err) { + dev_priv->agp_size = 0; + DRM_ERROR("Unable to allocate %uMB AGP memory\n", + dma_bs->agp_size); + return err; + } + + dev_priv->agp_size = agp_size; + dev_priv->agp_handle = agp_req.handle; + + bind_req.handle = agp_req.handle; + bind_req.offset = 0; + err = drm_legacy_agp_bind(dev, &bind_req); + if (err) { + DRM_ERROR("Unable to bind AGP memory: %d\n", err); + return err; + } + + /* Make drm_legacy_addbufs happy by not trying to create a mapping for + * less than a page. + */ + if (warp_size < PAGE_SIZE) + warp_size = PAGE_SIZE; + + offset = 0; + err = drm_legacy_addmap(dev, offset, warp_size, + _DRM_AGP, _DRM_READ_ONLY, &dev_priv->warp); + if (err) { + DRM_ERROR("Unable to map WARP microcode: %d\n", err); + return err; + } + + offset += warp_size; + err = drm_legacy_addmap(dev, offset, dma_bs->primary_size, + _DRM_AGP, _DRM_READ_ONLY, &dev_priv->primary); + if (err) { + DRM_ERROR("Unable to map primary DMA region: %d\n", err); + return err; + } + + offset += dma_bs->primary_size; + err = drm_legacy_addmap(dev, offset, secondary_size, + _DRM_AGP, 0, &dev->agp_buffer_map); + if (err) { + DRM_ERROR("Unable to map secondary DMA region: %d\n", err); + return err; + } + + (void)memset(&req, 0, sizeof(req)); + req.count = dma_bs->secondary_bin_count; + req.size = dma_bs->secondary_bin_size; + req.flags = _DRM_AGP_BUFFER; + req.agp_start = offset; + + err = drm_legacy_addbufs_agp(dev, &req); + if (err) { + DRM_ERROR("Unable to add secondary DMA buffers: %d\n", err); + return err; + } + + { + struct drm_map_list *_entry; + unsigned long agp_token = 0; + + list_for_each_entry(_entry, &dev->maplist, head) { + if (_entry->map == dev->agp_buffer_map) + agp_token = _entry->user_token; + } + if (!agp_token) + return -EFAULT; + + dev->agp_buffer_token = agp_token; + } + + offset += secondary_size; + err = drm_legacy_addmap(dev, offset, agp_size - offset, + _DRM_AGP, 0, &dev_priv->agp_textures); + if (err) { + DRM_ERROR("Unable to map AGP texture region %d\n", err); + return err; + } + + drm_legacy_ioremap(dev_priv->warp, dev); + drm_legacy_ioremap(dev_priv->primary, dev); + drm_legacy_ioremap(dev->agp_buffer_map, dev); + + if (!dev_priv->warp->handle || + !dev_priv->primary->handle || !dev->agp_buffer_map->handle) { + DRM_ERROR("failed to ioremap agp regions! (%p, %p, %p)\n", + dev_priv->warp->handle, dev_priv->primary->handle, + dev->agp_buffer_map->handle); + return -ENOMEM; + } + + dev_priv->dma_access = MGA_PAGPXFER; + dev_priv->wagp_enable = MGA_WAGP_ENABLE; + + DRM_INFO("Initialized card for AGP DMA.\n"); + return 0; +} +#else +static int mga_do_agp_dma_bootstrap(struct drm_device *dev, + drm_mga_dma_bootstrap_t *dma_bs) +{ + return -EINVAL; +} +#endif + +/* + * Bootstrap the driver for PCI DMA. + * + * \todo + * The algorithm for decreasing the size of the primary DMA buffer could be + * better. The size should be rounded up to the nearest page size, then + * decrease the request size by a single page each pass through the loop. + * + * \todo + * Determine whether the maximum address passed to drm_pci_alloc is correct. + * The same goes for drm_legacy_addbufs_pci. + * + * \sa mga_do_dma_bootstrap, mga_do_agp_dma_bootstrap + */ +static int mga_do_pci_dma_bootstrap(struct drm_device *dev, + drm_mga_dma_bootstrap_t *dma_bs) +{ + drm_mga_private_t *const dev_priv = + (drm_mga_private_t *) dev->dev_private; + unsigned int warp_size = MGA_WARP_UCODE_SIZE; + unsigned int primary_size; + unsigned int bin_count; + int err; + struct drm_buf_desc req; + + if (dev->dma == NULL) { + DRM_ERROR("dev->dma is NULL\n"); + return -EFAULT; + } + + /* Make drm_legacy_addbufs happy by not trying to create a mapping for + * less than a page. + */ + if (warp_size < PAGE_SIZE) + warp_size = PAGE_SIZE; + + /* The proper alignment is 0x100 for this mapping */ + err = drm_legacy_addmap(dev, 0, warp_size, _DRM_CONSISTENT, + _DRM_READ_ONLY, &dev_priv->warp); + if (err != 0) { + DRM_ERROR("Unable to create mapping for WARP microcode: %d\n", + err); + return err; + } + + /* Other than the bottom two bits being used to encode other + * information, there don't appear to be any restrictions on the + * alignment of the primary or secondary DMA buffers. + */ + + for (primary_size = dma_bs->primary_size; primary_size != 0; + primary_size >>= 1) { + /* The proper alignment for this mapping is 0x04 */ + err = drm_legacy_addmap(dev, 0, primary_size, _DRM_CONSISTENT, + _DRM_READ_ONLY, &dev_priv->primary); + if (!err) + break; + } + + if (err != 0) { + DRM_ERROR("Unable to allocate primary DMA region: %d\n", err); + return -ENOMEM; + } + + if (dev_priv->primary->size != dma_bs->primary_size) { + DRM_INFO("Primary DMA buffer size reduced from %u to %u.\n", + dma_bs->primary_size, + (unsigned)dev_priv->primary->size); + dma_bs->primary_size = dev_priv->primary->size; + } + + for (bin_count = dma_bs->secondary_bin_count; bin_count > 0; + bin_count--) { + (void)memset(&req, 0, sizeof(req)); + req.count = bin_count; + req.size = dma_bs->secondary_bin_size; + + err = drm_legacy_addbufs_pci(dev, &req); + if (!err) + break; + } + + if (bin_count == 0) { + DRM_ERROR("Unable to add secondary DMA buffers: %d\n", err); + return err; + } + + if (bin_count != dma_bs->secondary_bin_count) { + DRM_INFO("Secondary PCI DMA buffer bin count reduced from %u " + "to %u.\n", dma_bs->secondary_bin_count, bin_count); + + dma_bs->secondary_bin_count = bin_count; + } + + dev_priv->dma_access = 0; + dev_priv->wagp_enable = 0; + + dma_bs->agp_mode = 0; + + DRM_INFO("Initialized card for PCI DMA.\n"); + return 0; +} + +static int mga_do_dma_bootstrap(struct drm_device *dev, + drm_mga_dma_bootstrap_t *dma_bs) +{ + const int is_agp = (dma_bs->agp_mode != 0) && dev->agp; + int err; + drm_mga_private_t *const dev_priv = + (drm_mga_private_t *) dev->dev_private; + + dev_priv->used_new_dma_init = 1; + + /* The first steps are the same for both PCI and AGP based DMA. Map + * the cards MMIO registers and map a status page. + */ + err = drm_legacy_addmap(dev, dev_priv->mmio_base, dev_priv->mmio_size, + _DRM_REGISTERS, _DRM_READ_ONLY, + &dev_priv->mmio); + if (err) { + DRM_ERROR("Unable to map MMIO region: %d\n", err); + return err; + } + + err = drm_legacy_addmap(dev, 0, SAREA_MAX, _DRM_SHM, + _DRM_READ_ONLY | _DRM_LOCKED | _DRM_KERNEL, + &dev_priv->status); + if (err) { + DRM_ERROR("Unable to map status region: %d\n", err); + return err; + } + + /* The DMA initialization procedure is slightly different for PCI and + * AGP cards. AGP cards just allocate a large block of AGP memory and + * carve off portions of it for internal uses. The remaining memory + * is returned to user-mode to be used for AGP textures. + */ + if (is_agp) + err = mga_do_agp_dma_bootstrap(dev, dma_bs); + + /* If we attempted to initialize the card for AGP DMA but failed, + * clean-up any mess that may have been created. + */ + + if (err) + mga_do_cleanup_dma(dev, MINIMAL_CLEANUP); + + /* Not only do we want to try and initialized PCI cards for PCI DMA, + * but we also try to initialized AGP cards that could not be + * initialized for AGP DMA. This covers the case where we have an AGP + * card in a system with an unsupported AGP chipset. In that case the + * card will be detected as AGP, but we won't be able to allocate any + * AGP memory, etc. + */ + + if (!is_agp || err) + err = mga_do_pci_dma_bootstrap(dev, dma_bs); + + return err; +} + +int mga_dma_bootstrap(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + drm_mga_dma_bootstrap_t *bootstrap = data; + int err; + static const int modes[] = { 0, 1, 2, 2, 4, 4, 4, 4 }; + const drm_mga_private_t *const dev_priv = + (drm_mga_private_t *) dev->dev_private; + + err = mga_do_dma_bootstrap(dev, bootstrap); + if (err) { + mga_do_cleanup_dma(dev, FULL_CLEANUP); + return err; + } + + if (dev_priv->agp_textures != NULL) { + bootstrap->texture_handle = dev_priv->agp_textures->offset; + bootstrap->texture_size = dev_priv->agp_textures->size; + } else { + bootstrap->texture_handle = 0; + bootstrap->texture_size = 0; + } + + bootstrap->agp_mode = modes[bootstrap->agp_mode & 0x07]; + + return err; +} + +static int mga_do_init_dma(struct drm_device *dev, drm_mga_init_t *init) +{ + drm_mga_private_t *dev_priv; + int ret; + DRM_DEBUG("\n"); + + dev_priv = dev->dev_private; + + if (init->sgram) + dev_priv->clear_cmd = MGA_DWGCTL_CLEAR | MGA_ATYPE_BLK; + else + dev_priv->clear_cmd = MGA_DWGCTL_CLEAR | MGA_ATYPE_RSTR; + dev_priv->maccess = init->maccess; + + dev_priv->fb_cpp = init->fb_cpp; + dev_priv->front_offset = init->front_offset; + dev_priv->front_pitch = init->front_pitch; + dev_priv->back_offset = init->back_offset; + dev_priv->back_pitch = init->back_pitch; + + dev_priv->depth_cpp = init->depth_cpp; + dev_priv->depth_offset = init->depth_offset; + dev_priv->depth_pitch = init->depth_pitch; + + /* FIXME: Need to support AGP textures... + */ + dev_priv->texture_offset = init->texture_offset[0]; + dev_priv->texture_size = init->texture_size[0]; + + dev_priv->sarea = drm_legacy_getsarea(dev); + if (!dev_priv->sarea) { + DRM_ERROR("failed to find sarea!\n"); + return -EINVAL; + } + + if (!dev_priv->used_new_dma_init) { + + dev_priv->dma_access = MGA_PAGPXFER; + dev_priv->wagp_enable = MGA_WAGP_ENABLE; + + dev_priv->status = drm_legacy_findmap(dev, init->status_offset); + if (!dev_priv->status) { + DRM_ERROR("failed to find status page!\n"); + return -EINVAL; + } + dev_priv->mmio = drm_legacy_findmap(dev, init->mmio_offset); + if (!dev_priv->mmio) { + DRM_ERROR("failed to find mmio region!\n"); + return -EINVAL; + } + dev_priv->warp = drm_legacy_findmap(dev, init->warp_offset); + if (!dev_priv->warp) { + DRM_ERROR("failed to find warp microcode region!\n"); + return -EINVAL; + } + dev_priv->primary = drm_legacy_findmap(dev, init->primary_offset); + if (!dev_priv->primary) { + DRM_ERROR("failed to find primary dma region!\n"); + return -EINVAL; + } + dev->agp_buffer_token = init->buffers_offset; + dev->agp_buffer_map = + drm_legacy_findmap(dev, init->buffers_offset); + if (!dev->agp_buffer_map) { + DRM_ERROR("failed to find dma buffer region!\n"); + return -EINVAL; + } + + drm_legacy_ioremap(dev_priv->warp, dev); + drm_legacy_ioremap(dev_priv->primary, dev); + drm_legacy_ioremap(dev->agp_buffer_map, dev); + } + + dev_priv->sarea_priv = + (drm_mga_sarea_t *) ((u8 *) dev_priv->sarea->handle + + init->sarea_priv_offset); + + if (!dev_priv->warp->handle || + !dev_priv->primary->handle || + ((dev_priv->dma_access != 0) && + ((dev->agp_buffer_map == NULL) || + (dev->agp_buffer_map->handle == NULL)))) { + DRM_ERROR("failed to ioremap agp regions!\n"); + return -ENOMEM; + } + + ret = mga_warp_install_microcode(dev_priv); + if (ret < 0) { + DRM_ERROR("failed to install WARP ucode!: %d\n", ret); + return ret; + } + + ret = mga_warp_init(dev_priv); + if (ret < 0) { + DRM_ERROR("failed to init WARP engine!: %d\n", ret); + return ret; + } + + dev_priv->prim.status = (u32 *) dev_priv->status->handle; + + mga_do_wait_for_idle(dev_priv); + + /* Init the primary DMA registers. + */ + MGA_WRITE(MGA_PRIMADDRESS, dev_priv->primary->offset | MGA_DMA_GENERAL); +#if 0 + MGA_WRITE(MGA_PRIMPTR, virt_to_bus((void *)dev_priv->prim.status) | MGA_PRIMPTREN0 | /* Soft trap, SECEND, SETUPEND */ + MGA_PRIMPTREN1); /* DWGSYNC */ +#endif + + dev_priv->prim.start = (u8 *) dev_priv->primary->handle; + dev_priv->prim.end = ((u8 *) dev_priv->primary->handle + + dev_priv->primary->size); + dev_priv->prim.size = dev_priv->primary->size; + + dev_priv->prim.tail = 0; + dev_priv->prim.space = dev_priv->prim.size; + dev_priv->prim.wrapped = 0; + + dev_priv->prim.last_flush = 0; + dev_priv->prim.last_wrap = 0; + + dev_priv->prim.high_mark = 256 * DMA_BLOCK_SIZE; + + dev_priv->prim.status[0] = dev_priv->primary->offset; + dev_priv->prim.status[1] = 0; + + dev_priv->sarea_priv->last_wrap = 0; + dev_priv->sarea_priv->last_frame.head = 0; + dev_priv->sarea_priv->last_frame.wrap = 0; + + if (mga_freelist_init(dev, dev_priv) < 0) { + DRM_ERROR("could not initialize freelist\n"); + return -ENOMEM; + } + + return 0; +} + +static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup) +{ + int err = 0; + DRM_DEBUG("\n"); + + /* Make sure interrupts are disabled here because the uninstall ioctl + * may not have been called from userspace and after dev_private + * is freed, it's too late. + */ + if (dev->irq_enabled) + drm_legacy_irq_uninstall(dev); + + if (dev->dev_private) { + drm_mga_private_t *dev_priv = dev->dev_private; + + if ((dev_priv->warp != NULL) + && (dev_priv->warp->type != _DRM_CONSISTENT)) + drm_legacy_ioremapfree(dev_priv->warp, dev); + + if ((dev_priv->primary != NULL) + && (dev_priv->primary->type != _DRM_CONSISTENT)) + drm_legacy_ioremapfree(dev_priv->primary, dev); + + if (dev->agp_buffer_map != NULL) + drm_legacy_ioremapfree(dev->agp_buffer_map, dev); + + if (dev_priv->used_new_dma_init) { +#if IS_ENABLED(CONFIG_AGP) + if (dev_priv->agp_handle != 0) { + struct drm_agp_binding unbind_req; + struct drm_agp_buffer free_req; + + unbind_req.handle = dev_priv->agp_handle; + drm_legacy_agp_unbind(dev, &unbind_req); + + free_req.handle = dev_priv->agp_handle; + drm_legacy_agp_free(dev, &free_req); + + dev_priv->agp_textures = NULL; + dev_priv->agp_size = 0; + dev_priv->agp_handle = 0; + } + + if ((dev->agp != NULL) && dev->agp->acquired) + err = drm_legacy_agp_release(dev); +#endif + } + + dev_priv->warp = NULL; + dev_priv->primary = NULL; + dev_priv->sarea = NULL; + dev_priv->sarea_priv = NULL; + dev->agp_buffer_map = NULL; + + if (full_cleanup) { + dev_priv->mmio = NULL; + dev_priv->status = NULL; + dev_priv->used_new_dma_init = 0; + } + + memset(&dev_priv->prim, 0, sizeof(dev_priv->prim)); + dev_priv->warp_pipe = 0; + memset(dev_priv->warp_pipe_phys, 0, + sizeof(dev_priv->warp_pipe_phys)); + + if (dev_priv->head != NULL) + mga_freelist_cleanup(dev); + } + + return err; +} + +int mga_dma_init(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + drm_mga_init_t *init = data; + int err; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + switch (init->func) { + case MGA_INIT_DMA: + err = mga_do_init_dma(dev, init); + if (err) + (void)mga_do_cleanup_dma(dev, FULL_CLEANUP); + return err; + case MGA_CLEANUP_DMA: + return mga_do_cleanup_dma(dev, FULL_CLEANUP); + } + + return -EINVAL; +} + +/* ================================================================ + * Primary DMA stream management + */ + +int mga_dma_flush(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; + struct drm_lock *lock = data; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + DRM_DEBUG("%s%s%s\n", + (lock->flags & _DRM_LOCK_FLUSH) ? "flush, " : "", + (lock->flags & _DRM_LOCK_FLUSH_ALL) ? "flush all, " : "", + (lock->flags & _DRM_LOCK_QUIESCENT) ? "idle, " : ""); + + WRAP_WAIT_WITH_RETURN(dev_priv); + + if (lock->flags & (_DRM_LOCK_FLUSH | _DRM_LOCK_FLUSH_ALL)) + mga_do_dma_flush(dev_priv); + + if (lock->flags & _DRM_LOCK_QUIESCENT) { +#if MGA_DMA_DEBUG + int ret = mga_do_wait_for_idle(dev_priv); + if (ret < 0) + DRM_INFO("-EBUSY\n"); + return ret; +#else + return mga_do_wait_for_idle(dev_priv); +#endif + } else { + return 0; + } +} + +int mga_dma_reset(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + return mga_do_dma_reset(dev_priv); +} + +/* ================================================================ + * DMA buffer management + */ + +static int mga_dma_get_buffers(struct drm_device *dev, + struct drm_file *file_priv, struct drm_dma *d) +{ + struct drm_buf *buf; + int i; + + for (i = d->granted_count; i < d->request_count; i++) { + buf = mga_freelist_get(dev); + if (!buf) + return -EAGAIN; + + buf->file_priv = file_priv; + + if (copy_to_user(&d->request_indices[i], + &buf->idx, sizeof(buf->idx))) + return -EFAULT; + if (copy_to_user(&d->request_sizes[i], + &buf->total, sizeof(buf->total))) + return -EFAULT; + + d->granted_count++; + } + return 0; +} + +int mga_dma_buffers(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_device_dma *dma = dev->dma; + drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; + struct drm_dma *d = data; + int ret = 0; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + /* Please don't send us buffers. + */ + if (d->send_count != 0) { + DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n", + task_pid_nr(current), d->send_count); + return -EINVAL; + } + + /* We'll send you buffers. + */ + if (d->request_count < 0 || d->request_count > dma->buf_count) { + DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n", + task_pid_nr(current), d->request_count, + dma->buf_count); + return -EINVAL; + } + + WRAP_TEST_WITH_RETURN(dev_priv); + + d->granted_count = 0; + + if (d->request_count) + ret = mga_dma_get_buffers(dev, file_priv, d); + + return ret; +} + +/* + * Called just before the module is unloaded. + */ +void mga_driver_unload(struct drm_device *dev) +{ + kfree(dev->dev_private); + dev->dev_private = NULL; +} + +/* + * Called when the last opener of the device is closed. + */ +void mga_driver_lastclose(struct drm_device *dev) +{ + mga_do_cleanup_dma(dev, FULL_CLEANUP); +} + +int mga_driver_dma_quiescent(struct drm_device *dev) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + return mga_do_wait_for_idle(dev_priv); +} diff --git a/drivers/gpu/drm/mga/mga_drv.c b/drivers/gpu/drm/mga/mga_drv.c new file mode 100644 index 000000000..71128e6f6 --- /dev/null +++ b/drivers/gpu/drm/mga/mga_drv.c @@ -0,0 +1,104 @@ +/* mga_drv.c -- Matrox G200/G400 driver -*- linux-c -*- + * Created: Mon Dec 13 01:56:22 1999 by jhartmann@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * 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 + * VA LINUX SYSTEMS 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: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + */ + +#include <linux/module.h> + +#include <drm/drm_drv.h> +#include <drm/drm_pciids.h> + +#include "mga_drv.h" + +static struct pci_device_id pciidlist[] = { + mga_PCI_IDS +}; + +static const struct file_operations mga_driver_fops = { + .owner = THIS_MODULE, + .open = drm_open, + .release = drm_release, + .unlocked_ioctl = drm_ioctl, + .mmap = drm_legacy_mmap, + .poll = drm_poll, +#ifdef CONFIG_COMPAT + .compat_ioctl = mga_compat_ioctl, +#endif + .llseek = noop_llseek, +}; + +static struct drm_driver driver = { + .driver_features = + DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_LEGACY | + DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ, + .dev_priv_size = sizeof(drm_mga_buf_priv_t), + .load = mga_driver_load, + .unload = mga_driver_unload, + .lastclose = mga_driver_lastclose, + .dma_quiescent = mga_driver_dma_quiescent, + .get_vblank_counter = mga_get_vblank_counter, + .enable_vblank = mga_enable_vblank, + .disable_vblank = mga_disable_vblank, + .irq_preinstall = mga_driver_irq_preinstall, + .irq_postinstall = mga_driver_irq_postinstall, + .irq_uninstall = mga_driver_irq_uninstall, + .irq_handler = mga_driver_irq_handler, + .ioctls = mga_ioctls, + .dma_ioctl = mga_dma_buffers, + .fops = &mga_driver_fops, + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = DRIVER_MAJOR, + .minor = DRIVER_MINOR, + .patchlevel = DRIVER_PATCHLEVEL, +}; + +static struct pci_driver mga_pci_driver = { + .name = DRIVER_NAME, + .id_table = pciidlist, +}; + +static int __init mga_init(void) +{ + driver.num_ioctls = mga_max_ioctl; + return drm_legacy_pci_init(&driver, &mga_pci_driver); +} + +static void __exit mga_exit(void) +{ + drm_legacy_pci_exit(&driver, &mga_pci_driver); +} + +module_init(mga_init); +module_exit(mga_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL and additional rights"); diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h new file mode 100644 index 000000000..f61401c70 --- /dev/null +++ b/drivers/gpu/drm/mga/mga_drv.h @@ -0,0 +1,685 @@ +/* mga_drv.h -- Private header for the Matrox G200/G400 driver -*- linux-c -*- + * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * 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 + * VA LINUX SYSTEMS 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: + * Gareth Hughes <gareth@valinux.com> + */ + +#ifndef __MGA_DRV_H__ +#define __MGA_DRV_H__ + +#include <linux/irqreturn.h> +#include <linux/pci.h> +#include <linux/slab.h> + +#include <drm/drm_device.h> +#include <drm/drm_file.h> +#include <drm/drm_ioctl.h> +#include <drm/drm_legacy.h> +#include <drm/drm_print.h> +#include <drm/drm_sarea.h> +#include <drm/drm_vblank.h> +#include <drm/mga_drm.h> + +/* General customization: + */ + +#define DRIVER_AUTHOR "Gareth Hughes, VA Linux Systems Inc." + +#define DRIVER_NAME "mga" +#define DRIVER_DESC "Matrox G200/G400" +#define DRIVER_DATE "20051102" + +#define DRIVER_MAJOR 3 +#define DRIVER_MINOR 2 +#define DRIVER_PATCHLEVEL 1 + +typedef struct drm_mga_primary_buffer { + u8 *start; + u8 *end; + int size; + + u32 tail; + int space; + volatile long wrapped; + + volatile u32 *status; + + u32 last_flush; + u32 last_wrap; + + u32 high_mark; +} drm_mga_primary_buffer_t; + +typedef struct drm_mga_freelist { + struct drm_mga_freelist *next; + struct drm_mga_freelist *prev; + drm_mga_age_t age; + struct drm_buf *buf; +} drm_mga_freelist_t; + +typedef struct { + drm_mga_freelist_t *list_entry; + int discard; + int dispatched; +} drm_mga_buf_priv_t; + +typedef struct drm_mga_private { + drm_mga_primary_buffer_t prim; + drm_mga_sarea_t *sarea_priv; + + drm_mga_freelist_t *head; + drm_mga_freelist_t *tail; + + unsigned int warp_pipe; + unsigned long warp_pipe_phys[MGA_MAX_WARP_PIPES]; + + int chipset; + int usec_timeout; + + /** + * If set, the new DMA initialization sequence was used. This is + * primarilly used to select how the driver should uninitialized its + * internal DMA structures. + */ + int used_new_dma_init; + + /** + * If AGP memory is used for DMA buffers, this will be the value + * \c MGA_PAGPXFER. Otherwise, it will be zero (for a PCI transfer). + */ + u32 dma_access; + + /** + * If AGP memory is used for DMA buffers, this will be the value + * \c MGA_WAGP_ENABLE. Otherwise, it will be zero (for a PCI + * transfer). + */ + u32 wagp_enable; + + /** + * \name MMIO region parameters. + * + * \sa drm_mga_private_t::mmio + */ + /*@{ */ + resource_size_t mmio_base; /**< Bus address of base of MMIO. */ + resource_size_t mmio_size; /**< Size of the MMIO region. */ + /*@} */ + + u32 clear_cmd; + u32 maccess; + + atomic_t vbl_received; /**< Number of vblanks received. */ + wait_queue_head_t fence_queue; + atomic_t last_fence_retired; + u32 next_fence_to_post; + + unsigned int fb_cpp; + unsigned int front_offset; + unsigned int front_pitch; + unsigned int back_offset; + unsigned int back_pitch; + + unsigned int depth_cpp; + unsigned int depth_offset; + unsigned int depth_pitch; + + unsigned int texture_offset; + unsigned int texture_size; + + drm_local_map_t *sarea; + drm_local_map_t *mmio; + drm_local_map_t *status; + drm_local_map_t *warp; + drm_local_map_t *primary; + drm_local_map_t *agp_textures; + + unsigned long agp_handle; + unsigned int agp_size; +} drm_mga_private_t; + +extern const struct drm_ioctl_desc mga_ioctls[]; +extern int mga_max_ioctl; + + /* mga_dma.c */ +extern int mga_dma_bootstrap(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int mga_dma_init(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int mga_getparam(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int mga_dma_flush(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int mga_dma_reset(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int mga_dma_buffers(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int mga_driver_load(struct drm_device *dev, unsigned long flags); +extern void mga_driver_unload(struct drm_device *dev); +extern void mga_driver_lastclose(struct drm_device *dev); +extern int mga_driver_dma_quiescent(struct drm_device *dev); + +extern int mga_do_wait_for_idle(drm_mga_private_t *dev_priv); + +extern void mga_do_dma_flush(drm_mga_private_t *dev_priv); +extern void mga_do_dma_wrap_start(drm_mga_private_t *dev_priv); +extern void mga_do_dma_wrap_end(drm_mga_private_t *dev_priv); + +extern int mga_freelist_put(struct drm_device *dev, struct drm_buf *buf); + + /* mga_warp.c */ +extern int mga_warp_install_microcode(drm_mga_private_t *dev_priv); +extern int mga_warp_init(drm_mga_private_t *dev_priv); + + /* mga_irq.c */ +extern int mga_enable_vblank(struct drm_device *dev, unsigned int pipe); +extern void mga_disable_vblank(struct drm_device *dev, unsigned int pipe); +extern u32 mga_get_vblank_counter(struct drm_device *dev, unsigned int pipe); +extern void mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence); +extern int mga_driver_vblank_wait(struct drm_device *dev, unsigned int *sequence); +extern irqreturn_t mga_driver_irq_handler(int irq, void *arg); +extern void mga_driver_irq_preinstall(struct drm_device *dev); +extern int mga_driver_irq_postinstall(struct drm_device *dev); +extern void mga_driver_irq_uninstall(struct drm_device *dev); +extern long mga_compat_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg); + +#define mga_flush_write_combine() wmb() + +#define MGA_READ8(reg) \ + readb(((void __iomem *)dev_priv->mmio->handle) + (reg)) +#define MGA_READ(reg) \ + readl(((void __iomem *)dev_priv->mmio->handle) + (reg)) +#define MGA_WRITE8(reg, val) \ + writeb(val, ((void __iomem *)dev_priv->mmio->handle) + (reg)) +#define MGA_WRITE(reg, val) \ + writel(val, ((void __iomem *)dev_priv->mmio->handle) + (reg)) + +#define DWGREG0 0x1c00 +#define DWGREG0_END 0x1dff +#define DWGREG1 0x2c00 +#define DWGREG1_END 0x2dff + +#define ISREG0(r) (r >= DWGREG0 && r <= DWGREG0_END) +#define DMAREG0(r) (u8)((r - DWGREG0) >> 2) +#define DMAREG1(r) (u8)(((r - DWGREG1) >> 2) | 0x80) +#define DMAREG(r) (ISREG0(r) ? DMAREG0(r) : DMAREG1(r)) + +/* ================================================================ + * Helper macross... + */ + +#define MGA_EMIT_STATE(dev_priv, dirty) \ +do { \ + if ((dirty) & ~MGA_UPLOAD_CLIPRECTS) { \ + if (dev_priv->chipset >= MGA_CARD_TYPE_G400) \ + mga_g400_emit_state(dev_priv); \ + else \ + mga_g200_emit_state(dev_priv); \ + } \ +} while (0) + +#define WRAP_TEST_WITH_RETURN(dev_priv) \ +do { \ + if (test_bit(0, &dev_priv->prim.wrapped)) { \ + if (mga_is_idle(dev_priv)) { \ + mga_do_dma_wrap_end(dev_priv); \ + } else if (dev_priv->prim.space < \ + dev_priv->prim.high_mark) { \ + if (MGA_DMA_DEBUG) \ + DRM_INFO("wrap...\n"); \ + return -EBUSY; \ + } \ + } \ +} while (0) + +#define WRAP_WAIT_WITH_RETURN(dev_priv) \ +do { \ + if (test_bit(0, &dev_priv->prim.wrapped)) { \ + if (mga_do_wait_for_idle(dev_priv) < 0) { \ + if (MGA_DMA_DEBUG) \ + DRM_INFO("wrap...\n"); \ + return -EBUSY; \ + } \ + mga_do_dma_wrap_end(dev_priv); \ + } \ +} while (0) + +/* ================================================================ + * Primary DMA command stream + */ + +#define MGA_VERBOSE 0 + +#define DMA_LOCALS unsigned int write; volatile u8 *prim; + +#define DMA_BLOCK_SIZE (5 * sizeof(u32)) + +#define BEGIN_DMA(n) \ +do { \ + if (MGA_VERBOSE) { \ + DRM_INFO("BEGIN_DMA(%d)\n", (n)); \ + DRM_INFO(" space=0x%x req=0x%zx\n", \ + dev_priv->prim.space, (n) * DMA_BLOCK_SIZE); \ + } \ + prim = dev_priv->prim.start; \ + write = dev_priv->prim.tail; \ +} while (0) + +#define BEGIN_DMA_WRAP() \ +do { \ + if (MGA_VERBOSE) { \ + DRM_INFO("BEGIN_DMA()\n"); \ + DRM_INFO(" space=0x%x\n", dev_priv->prim.space); \ + } \ + prim = dev_priv->prim.start; \ + write = dev_priv->prim.tail; \ +} while (0) + +#define ADVANCE_DMA() \ +do { \ + dev_priv->prim.tail = write; \ + if (MGA_VERBOSE) \ + DRM_INFO("ADVANCE_DMA() tail=0x%05x sp=0x%x\n", \ + write, dev_priv->prim.space); \ +} while (0) + +#define FLUSH_DMA() \ +do { \ + if (0) { \ + DRM_INFO("\n"); \ + DRM_INFO(" tail=0x%06x head=0x%06lx\n", \ + dev_priv->prim.tail, \ + (unsigned long)(MGA_READ(MGA_PRIMADDRESS) - \ + dev_priv->primary->offset)); \ + } \ + if (!test_bit(0, &dev_priv->prim.wrapped)) { \ + if (dev_priv->prim.space < dev_priv->prim.high_mark) \ + mga_do_dma_wrap_start(dev_priv); \ + else \ + mga_do_dma_flush(dev_priv); \ + } \ +} while (0) + +/* Never use this, always use DMA_BLOCK(...) for primary DMA output. + */ +#define DMA_WRITE(offset, val) \ +do { \ + if (MGA_VERBOSE) \ + DRM_INFO(" DMA_WRITE( 0x%08x ) at 0x%04zx\n", \ + (u32)(val), write + (offset) * sizeof(u32)); \ + *(volatile u32 *)(prim + write + (offset) * sizeof(u32)) = val; \ +} while (0) + +#define DMA_BLOCK(reg0, val0, reg1, val1, reg2, val2, reg3, val3) \ +do { \ + DMA_WRITE(0, ((DMAREG(reg0) << 0) | \ + (DMAREG(reg1) << 8) | \ + (DMAREG(reg2) << 16) | \ + (DMAREG(reg3) << 24))); \ + DMA_WRITE(1, val0); \ + DMA_WRITE(2, val1); \ + DMA_WRITE(3, val2); \ + DMA_WRITE(4, val3); \ + write += DMA_BLOCK_SIZE; \ +} while (0) + +/* Buffer aging via primary DMA stream head pointer. + */ + +#define SET_AGE(age, h, w) \ +do { \ + (age)->head = h; \ + (age)->wrap = w; \ +} while (0) + +#define TEST_AGE(age, h, w) ((age)->wrap < w || \ + ((age)->wrap == w && \ + (age)->head < h)) + +#define AGE_BUFFER(buf_priv) \ +do { \ + drm_mga_freelist_t *entry = (buf_priv)->list_entry; \ + if ((buf_priv)->dispatched) { \ + entry->age.head = (dev_priv->prim.tail + \ + dev_priv->primary->offset); \ + entry->age.wrap = dev_priv->sarea_priv->last_wrap; \ + } else { \ + entry->age.head = 0; \ + entry->age.wrap = 0; \ + } \ +} while (0) + +#define MGA_ENGINE_IDLE_MASK (MGA_SOFTRAPEN | \ + MGA_DWGENGSTS | \ + MGA_ENDPRDMASTS) +#define MGA_DMA_IDLE_MASK (MGA_SOFTRAPEN | \ + MGA_ENDPRDMASTS) + +#define MGA_DMA_DEBUG 0 + +/* A reduced set of the mga registers. + */ +#define MGA_CRTC_INDEX 0x1fd4 +#define MGA_CRTC_DATA 0x1fd5 + +/* CRTC11 */ +#define MGA_VINTCLR (1 << 4) +#define MGA_VINTEN (1 << 5) + +#define MGA_ALPHACTRL 0x2c7c +#define MGA_AR0 0x1c60 +#define MGA_AR1 0x1c64 +#define MGA_AR2 0x1c68 +#define MGA_AR3 0x1c6c +#define MGA_AR4 0x1c70 +#define MGA_AR5 0x1c74 +#define MGA_AR6 0x1c78 + +#define MGA_CXBNDRY 0x1c80 +#define MGA_CXLEFT 0x1ca0 +#define MGA_CXRIGHT 0x1ca4 + +#define MGA_DMAPAD 0x1c54 +#define MGA_DSTORG 0x2cb8 +#define MGA_DWGCTL 0x1c00 +# define MGA_OPCOD_MASK (15 << 0) +# define MGA_OPCOD_TRAP (4 << 0) +# define MGA_OPCOD_TEXTURE_TRAP (6 << 0) +# define MGA_OPCOD_BITBLT (8 << 0) +# define MGA_OPCOD_ILOAD (9 << 0) +# define MGA_ATYPE_MASK (7 << 4) +# define MGA_ATYPE_RPL (0 << 4) +# define MGA_ATYPE_RSTR (1 << 4) +# define MGA_ATYPE_ZI (3 << 4) +# define MGA_ATYPE_BLK (4 << 4) +# define MGA_ATYPE_I (7 << 4) +# define MGA_LINEAR (1 << 7) +# define MGA_ZMODE_MASK (7 << 8) +# define MGA_ZMODE_NOZCMP (0 << 8) +# define MGA_ZMODE_ZE (2 << 8) +# define MGA_ZMODE_ZNE (3 << 8) +# define MGA_ZMODE_ZLT (4 << 8) +# define MGA_ZMODE_ZLTE (5 << 8) +# define MGA_ZMODE_ZGT (6 << 8) +# define MGA_ZMODE_ZGTE (7 << 8) +# define MGA_SOLID (1 << 11) +# define MGA_ARZERO (1 << 12) +# define MGA_SGNZERO (1 << 13) +# define MGA_SHIFTZERO (1 << 14) +# define MGA_BOP_MASK (15 << 16) +# define MGA_BOP_ZERO (0 << 16) +# define MGA_BOP_DST (10 << 16) +# define MGA_BOP_SRC (12 << 16) +# define MGA_BOP_ONE (15 << 16) +# define MGA_TRANS_SHIFT 20 +# define MGA_TRANS_MASK (15 << 20) +# define MGA_BLTMOD_MASK (15 << 25) +# define MGA_BLTMOD_BMONOLEF (0 << 25) +# define MGA_BLTMOD_BMONOWF (4 << 25) +# define MGA_BLTMOD_PLAN (1 << 25) +# define MGA_BLTMOD_BFCOL (2 << 25) +# define MGA_BLTMOD_BU32BGR (3 << 25) +# define MGA_BLTMOD_BU32RGB (7 << 25) +# define MGA_BLTMOD_BU24BGR (11 << 25) +# define MGA_BLTMOD_BU24RGB (15 << 25) +# define MGA_PATTERN (1 << 29) +# define MGA_TRANSC (1 << 30) +# define MGA_CLIPDIS (1 << 31) +#define MGA_DWGSYNC 0x2c4c + +#define MGA_FCOL 0x1c24 +#define MGA_FIFOSTATUS 0x1e10 +#define MGA_FOGCOL 0x1cf4 +#define MGA_FXBNDRY 0x1c84 +#define MGA_FXLEFT 0x1ca8 +#define MGA_FXRIGHT 0x1cac + +#define MGA_ICLEAR 0x1e18 +# define MGA_SOFTRAPICLR (1 << 0) +# define MGA_VLINEICLR (1 << 5) +#define MGA_IEN 0x1e1c +# define MGA_SOFTRAPIEN (1 << 0) +# define MGA_VLINEIEN (1 << 5) + +#define MGA_LEN 0x1c5c + +#define MGA_MACCESS 0x1c04 + +#define MGA_PITCH 0x1c8c +#define MGA_PLNWT 0x1c1c +#define MGA_PRIMADDRESS 0x1e58 +# define MGA_DMA_GENERAL (0 << 0) +# define MGA_DMA_BLIT (1 << 0) +# define MGA_DMA_VECTOR (2 << 0) +# define MGA_DMA_VERTEX (3 << 0) +#define MGA_PRIMEND 0x1e5c +# define MGA_PRIMNOSTART (1 << 0) +# define MGA_PAGPXFER (1 << 1) +#define MGA_PRIMPTR 0x1e50 +# define MGA_PRIMPTREN0 (1 << 0) +# define MGA_PRIMPTREN1 (1 << 1) + +#define MGA_RST 0x1e40 +# define MGA_SOFTRESET (1 << 0) +# define MGA_SOFTEXTRST (1 << 1) + +#define MGA_SECADDRESS 0x2c40 +#define MGA_SECEND 0x2c44 +#define MGA_SETUPADDRESS 0x2cd0 +#define MGA_SETUPEND 0x2cd4 +#define MGA_SGN 0x1c58 +#define MGA_SOFTRAP 0x2c48 +#define MGA_SRCORG 0x2cb4 +# define MGA_SRMMAP_MASK (1 << 0) +# define MGA_SRCMAP_FB (0 << 0) +# define MGA_SRCMAP_SYSMEM (1 << 0) +# define MGA_SRCACC_MASK (1 << 1) +# define MGA_SRCACC_PCI (0 << 1) +# define MGA_SRCACC_AGP (1 << 1) +#define MGA_STATUS 0x1e14 +# define MGA_SOFTRAPEN (1 << 0) +# define MGA_VSYNCPEN (1 << 4) +# define MGA_VLINEPEN (1 << 5) +# define MGA_DWGENGSTS (1 << 16) +# define MGA_ENDPRDMASTS (1 << 17) +#define MGA_STENCIL 0x2cc8 +#define MGA_STENCILCTL 0x2ccc + +#define MGA_TDUALSTAGE0 0x2cf8 +#define MGA_TDUALSTAGE1 0x2cfc +#define MGA_TEXBORDERCOL 0x2c5c +#define MGA_TEXCTL 0x2c30 +#define MGA_TEXCTL2 0x2c3c +# define MGA_DUALTEX (1 << 7) +# define MGA_G400_TC2_MAGIC (1 << 15) +# define MGA_MAP1_ENABLE (1 << 31) +#define MGA_TEXFILTER 0x2c58 +#define MGA_TEXHEIGHT 0x2c2c +#define MGA_TEXORG 0x2c24 +# define MGA_TEXORGMAP_MASK (1 << 0) +# define MGA_TEXORGMAP_FB (0 << 0) +# define MGA_TEXORGMAP_SYSMEM (1 << 0) +# define MGA_TEXORGACC_MASK (1 << 1) +# define MGA_TEXORGACC_PCI (0 << 1) +# define MGA_TEXORGACC_AGP (1 << 1) +#define MGA_TEXORG1 0x2ca4 +#define MGA_TEXORG2 0x2ca8 +#define MGA_TEXORG3 0x2cac +#define MGA_TEXORG4 0x2cb0 +#define MGA_TEXTRANS 0x2c34 +#define MGA_TEXTRANSHIGH 0x2c38 +#define MGA_TEXWIDTH 0x2c28 + +#define MGA_WACCEPTSEQ 0x1dd4 +#define MGA_WCODEADDR 0x1e6c +#define MGA_WFLAG 0x1dc4 +#define MGA_WFLAG1 0x1de0 +#define MGA_WFLAGNB 0x1e64 +#define MGA_WFLAGNB1 0x1e08 +#define MGA_WGETMSB 0x1dc8 +#define MGA_WIADDR 0x1dc0 +#define MGA_WIADDR2 0x1dd8 +# define MGA_WMODE_SUSPEND (0 << 0) +# define MGA_WMODE_RESUME (1 << 0) +# define MGA_WMODE_JUMP (2 << 0) +# define MGA_WMODE_START (3 << 0) +# define MGA_WAGP_ENABLE (1 << 2) +#define MGA_WMISC 0x1e70 +# define MGA_WUCODECACHE_ENABLE (1 << 0) +# define MGA_WMASTER_ENABLE (1 << 1) +# define MGA_WCACHEFLUSH_ENABLE (1 << 3) +#define MGA_WVRTXSZ 0x1dcc + +#define MGA_YBOT 0x1c9c +#define MGA_YDST 0x1c90 +#define MGA_YDSTLEN 0x1c88 +#define MGA_YDSTORG 0x1c94 +#define MGA_YTOP 0x1c98 + +#define MGA_ZORG 0x1c0c + +/* This finishes the current batch of commands + */ +#define MGA_EXEC 0x0100 + +/* AGP PLL encoding (for G200 only). + */ +#define MGA_AGP_PLL 0x1e4c +# define MGA_AGP2XPLL_DISABLE (0 << 0) +# define MGA_AGP2XPLL_ENABLE (1 << 0) + +/* Warp registers + */ +#define MGA_WR0 0x2d00 +#define MGA_WR1 0x2d04 +#define MGA_WR2 0x2d08 +#define MGA_WR3 0x2d0c +#define MGA_WR4 0x2d10 +#define MGA_WR5 0x2d14 +#define MGA_WR6 0x2d18 +#define MGA_WR7 0x2d1c +#define MGA_WR8 0x2d20 +#define MGA_WR9 0x2d24 +#define MGA_WR10 0x2d28 +#define MGA_WR11 0x2d2c +#define MGA_WR12 0x2d30 +#define MGA_WR13 0x2d34 +#define MGA_WR14 0x2d38 +#define MGA_WR15 0x2d3c +#define MGA_WR16 0x2d40 +#define MGA_WR17 0x2d44 +#define MGA_WR18 0x2d48 +#define MGA_WR19 0x2d4c +#define MGA_WR20 0x2d50 +#define MGA_WR21 0x2d54 +#define MGA_WR22 0x2d58 +#define MGA_WR23 0x2d5c +#define MGA_WR24 0x2d60 +#define MGA_WR25 0x2d64 +#define MGA_WR26 0x2d68 +#define MGA_WR27 0x2d6c +#define MGA_WR28 0x2d70 +#define MGA_WR29 0x2d74 +#define MGA_WR30 0x2d78 +#define MGA_WR31 0x2d7c +#define MGA_WR32 0x2d80 +#define MGA_WR33 0x2d84 +#define MGA_WR34 0x2d88 +#define MGA_WR35 0x2d8c +#define MGA_WR36 0x2d90 +#define MGA_WR37 0x2d94 +#define MGA_WR38 0x2d98 +#define MGA_WR39 0x2d9c +#define MGA_WR40 0x2da0 +#define MGA_WR41 0x2da4 +#define MGA_WR42 0x2da8 +#define MGA_WR43 0x2dac +#define MGA_WR44 0x2db0 +#define MGA_WR45 0x2db4 +#define MGA_WR46 0x2db8 +#define MGA_WR47 0x2dbc +#define MGA_WR48 0x2dc0 +#define MGA_WR49 0x2dc4 +#define MGA_WR50 0x2dc8 +#define MGA_WR51 0x2dcc +#define MGA_WR52 0x2dd0 +#define MGA_WR53 0x2dd4 +#define MGA_WR54 0x2dd8 +#define MGA_WR55 0x2ddc +#define MGA_WR56 0x2de0 +#define MGA_WR57 0x2de4 +#define MGA_WR58 0x2de8 +#define MGA_WR59 0x2dec +#define MGA_WR60 0x2df0 +#define MGA_WR61 0x2df4 +#define MGA_WR62 0x2df8 +#define MGA_WR63 0x2dfc +# define MGA_G400_WR_MAGIC (1 << 6) +# define MGA_G400_WR56_MAGIC 0x46480000 /* 12800.0f */ + +#define MGA_ILOAD_ALIGN 64 +#define MGA_ILOAD_MASK (MGA_ILOAD_ALIGN - 1) + +#define MGA_DWGCTL_FLUSH (MGA_OPCOD_TEXTURE_TRAP | \ + MGA_ATYPE_I | \ + MGA_ZMODE_NOZCMP | \ + MGA_ARZERO | \ + MGA_SGNZERO | \ + MGA_BOP_SRC | \ + (15 << MGA_TRANS_SHIFT)) + +#define MGA_DWGCTL_CLEAR (MGA_OPCOD_TRAP | \ + MGA_ZMODE_NOZCMP | \ + MGA_SOLID | \ + MGA_ARZERO | \ + MGA_SGNZERO | \ + MGA_SHIFTZERO | \ + MGA_BOP_SRC | \ + (0 << MGA_TRANS_SHIFT) | \ + MGA_BLTMOD_BMONOLEF | \ + MGA_TRANSC | \ + MGA_CLIPDIS) + +#define MGA_DWGCTL_COPY (MGA_OPCOD_BITBLT | \ + MGA_ATYPE_RPL | \ + MGA_SGNZERO | \ + MGA_SHIFTZERO | \ + MGA_BOP_SRC | \ + (0 << MGA_TRANS_SHIFT) | \ + MGA_BLTMOD_BFCOL | \ + MGA_CLIPDIS) + +/* Simple idle test. + */ +static __inline__ int mga_is_idle(drm_mga_private_t *dev_priv) +{ + u32 status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK; + return (status == MGA_ENDPRDMASTS); +} + +#endif diff --git a/drivers/gpu/drm/mga/mga_ioc32.c b/drivers/gpu/drm/mga/mga_ioc32.c new file mode 100644 index 000000000..894472921 --- /dev/null +++ b/drivers/gpu/drm/mga/mga_ioc32.c @@ -0,0 +1,197 @@ +/* + * \file mga_ioc32.c + * + * 32-bit ioctl compatibility routines for the MGA DRM. + * + * \author Dave Airlie <airlied@linux.ie> with code from patches by Egbert Eich + * + * + * Copyright (C) Paul Mackerras 2005 + * Copyright (C) Egbert Eich 2003,2004 + * Copyright (C) Dave Airlie 2005 + * 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 + * THE AUTHOR 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/compat.h> + +#include "mga_drv.h" + +typedef struct drm32_mga_init { + int func; + u32 sarea_priv_offset; + struct_group(always32bit, + int chipset; + int sgram; + unsigned int maccess; + unsigned int fb_cpp; + unsigned int front_offset, front_pitch; + unsigned int back_offset, back_pitch; + unsigned int depth_cpp; + unsigned int depth_offset, depth_pitch; + unsigned int texture_offset[MGA_NR_TEX_HEAPS]; + unsigned int texture_size[MGA_NR_TEX_HEAPS]; + ); + u32 fb_offset; + u32 mmio_offset; + u32 status_offset; + u32 warp_offset; + u32 primary_offset; + u32 buffers_offset; +} drm_mga_init32_t; + +static int compat_mga_init(struct file *file, unsigned int cmd, + unsigned long arg) +{ + drm_mga_init32_t init32; + drm_mga_init_t init; + + if (copy_from_user(&init32, (void __user *)arg, sizeof(init32))) + return -EFAULT; + + init.func = init32.func; + init.sarea_priv_offset = init32.sarea_priv_offset; + memcpy(&init.always32bit, &init32.always32bit, + sizeof(init32.always32bit)); + init.fb_offset = init32.fb_offset; + init.mmio_offset = init32.mmio_offset; + init.status_offset = init32.status_offset; + init.warp_offset = init32.warp_offset; + init.primary_offset = init32.primary_offset; + init.buffers_offset = init32.buffers_offset; + + return drm_ioctl_kernel(file, mga_dma_init, &init, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); +} + +typedef struct drm_mga_getparam32 { + int param; + u32 value; +} drm_mga_getparam32_t; + +static int compat_mga_getparam(struct file *file, unsigned int cmd, + unsigned long arg) +{ + drm_mga_getparam32_t getparam32; + drm_mga_getparam_t getparam; + + if (copy_from_user(&getparam32, (void __user *)arg, sizeof(getparam32))) + return -EFAULT; + + getparam.param = getparam32.param; + getparam.value = compat_ptr(getparam32.value); + return drm_ioctl_kernel(file, mga_getparam, &getparam, DRM_AUTH); +} + +typedef struct drm_mga_drm_bootstrap32 { + u32 texture_handle; + u32 texture_size; + u32 primary_size; + u32 secondary_bin_count; + u32 secondary_bin_size; + u32 agp_mode; + u8 agp_size; +} drm_mga_dma_bootstrap32_t; + +static int compat_mga_dma_bootstrap(struct file *file, unsigned int cmd, + unsigned long arg) +{ + drm_mga_dma_bootstrap32_t dma_bootstrap32; + drm_mga_dma_bootstrap_t dma_bootstrap; + int err; + + if (copy_from_user(&dma_bootstrap32, (void __user *)arg, + sizeof(dma_bootstrap32))) + return -EFAULT; + + dma_bootstrap.texture_handle = dma_bootstrap32.texture_handle; + dma_bootstrap.texture_size = dma_bootstrap32.texture_size; + dma_bootstrap.primary_size = dma_bootstrap32.primary_size; + dma_bootstrap.secondary_bin_count = dma_bootstrap32.secondary_bin_count; + dma_bootstrap.secondary_bin_size = dma_bootstrap32.secondary_bin_size; + dma_bootstrap.agp_mode = dma_bootstrap32.agp_mode; + dma_bootstrap.agp_size = dma_bootstrap32.agp_size; + + err = drm_ioctl_kernel(file, mga_dma_bootstrap, &dma_bootstrap, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); + if (err) + return err; + + dma_bootstrap32.texture_handle = dma_bootstrap.texture_handle; + dma_bootstrap32.texture_size = dma_bootstrap.texture_size; + dma_bootstrap32.primary_size = dma_bootstrap.primary_size; + dma_bootstrap32.secondary_bin_count = dma_bootstrap.secondary_bin_count; + dma_bootstrap32.secondary_bin_size = dma_bootstrap.secondary_bin_size; + dma_bootstrap32.agp_mode = dma_bootstrap.agp_mode; + dma_bootstrap32.agp_size = dma_bootstrap.agp_size; + if (copy_to_user((void __user *)arg, &dma_bootstrap32, + sizeof(dma_bootstrap32))) + return -EFAULT; + + return 0; +} + +static struct { + drm_ioctl_compat_t *fn; + char *name; +} mga_compat_ioctls[] = { +#define DRM_IOCTL32_DEF(n, f)[DRM_##n] = {.fn = f, .name = #n} + DRM_IOCTL32_DEF(MGA_INIT, compat_mga_init), + DRM_IOCTL32_DEF(MGA_GETPARAM, compat_mga_getparam), + DRM_IOCTL32_DEF(MGA_DMA_BOOTSTRAP, compat_mga_dma_bootstrap), +}; + +/** + * mga_compat_ioctl - Called whenever a 32-bit process running under + * a 64-bit kernel performs an ioctl on /dev/dri/card<n>. + * + * @filp: file pointer. + * @cmd: command. + * @arg: user argument. + * return: zero on success or negative number on failure. + */ +long mga_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) +{ + unsigned int nr = DRM_IOCTL_NR(cmd); + struct drm_file *file_priv = filp->private_data; + drm_ioctl_compat_t *fn = NULL; + int ret; + + if (nr < DRM_COMMAND_BASE) + return drm_compat_ioctl(filp, cmd, arg); + + if (nr >= DRM_COMMAND_BASE + ARRAY_SIZE(mga_compat_ioctls)) + return drm_ioctl(filp, cmd, arg); + + fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE].fn; + if (!fn) + return drm_ioctl(filp, cmd, arg); + + DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n", + task_pid_nr(current), + (long)old_encode_dev(file_priv->minor->kdev->devt), + file_priv->authenticated, + mga_compat_ioctls[nr - DRM_COMMAND_BASE].name); + ret = (*fn) (filp, cmd, arg); + if (ret) + DRM_DEBUG("ret = %d\n", ret); + return ret; +} diff --git a/drivers/gpu/drm/mga/mga_irq.c b/drivers/gpu/drm/mga/mga_irq.c new file mode 100644 index 000000000..a7e6ffc80 --- /dev/null +++ b/drivers/gpu/drm/mga/mga_irq.c @@ -0,0 +1,169 @@ +/* mga_irq.c -- IRQ handling for radeon -*- linux-c -*- + */ +/* + * Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved. + * + * The Weather Channel (TM) funded Tungsten Graphics to develop the + * initial release of the Radeon 8500 driver under the XFree86 license. + * This notice must be preserved. + * + * 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 + * PRECISION INSIGHT 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: + * Keith Whitwell <keith@tungstengraphics.com> + * Eric Anholt <anholt@FreeBSD.org> + */ + +#include "mga_drv.h" + +u32 mga_get_vblank_counter(struct drm_device *dev, unsigned int pipe) +{ + const drm_mga_private_t *const dev_priv = + (drm_mga_private_t *) dev->dev_private; + + if (pipe != 0) + return 0; + + return atomic_read(&dev_priv->vbl_received); +} + + +irqreturn_t mga_driver_irq_handler(int irq, void *arg) +{ + struct drm_device *dev = (struct drm_device *) arg; + drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; + int status; + int handled = 0; + + status = MGA_READ(MGA_STATUS); + + /* VBLANK interrupt */ + if (status & MGA_VLINEPEN) { + MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR); + atomic_inc(&dev_priv->vbl_received); + drm_handle_vblank(dev, 0); + handled = 1; + } + + /* SOFTRAP interrupt */ + if (status & MGA_SOFTRAPEN) { + const u32 prim_start = MGA_READ(MGA_PRIMADDRESS); + const u32 prim_end = MGA_READ(MGA_PRIMEND); + + + MGA_WRITE(MGA_ICLEAR, MGA_SOFTRAPICLR); + + /* In addition to clearing the interrupt-pending bit, we + * have to write to MGA_PRIMEND to re-start the DMA operation. + */ + if ((prim_start & ~0x03) != (prim_end & ~0x03)) + MGA_WRITE(MGA_PRIMEND, prim_end); + + atomic_inc(&dev_priv->last_fence_retired); + wake_up(&dev_priv->fence_queue); + handled = 1; + } + + if (handled) + return IRQ_HANDLED; + return IRQ_NONE; +} + +int mga_enable_vblank(struct drm_device *dev, unsigned int pipe) +{ + drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; + + if (pipe != 0) { + DRM_ERROR("tried to enable vblank on non-existent crtc %u\n", + pipe); + return 0; + } + + MGA_WRITE(MGA_IEN, MGA_VLINEIEN | MGA_SOFTRAPEN); + return 0; +} + + +void mga_disable_vblank(struct drm_device *dev, unsigned int pipe) +{ + if (pipe != 0) { + DRM_ERROR("tried to disable vblank on non-existent crtc %u\n", + pipe); + } + + /* Do *NOT* disable the vertical refresh interrupt. MGA doesn't have + * a nice hardware counter that tracks the number of refreshes when + * the interrupt is disabled, and the kernel doesn't know the refresh + * rate to calculate an estimate. + */ + /* MGA_WRITE(MGA_IEN, MGA_VLINEIEN | MGA_SOFTRAPEN); */ +} + +void mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence) +{ + drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; + unsigned int cur_fence; + + /* Assume that the user has missed the current sequence number + * by about a day rather than she wants to wait for years + * using fences. + */ + wait_event_timeout(dev_priv->fence_queue, + (((cur_fence = atomic_read(&dev_priv->last_fence_retired)) + - *sequence) <= (1 << 23)), + msecs_to_jiffies(3000)); + + *sequence = cur_fence; +} + +void mga_driver_irq_preinstall(struct drm_device *dev) +{ + drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; + + /* Disable *all* interrupts */ + MGA_WRITE(MGA_IEN, 0); + /* Clear bits if they're already high */ + MGA_WRITE(MGA_ICLEAR, ~0); +} + +int mga_driver_irq_postinstall(struct drm_device *dev) +{ + drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; + + init_waitqueue_head(&dev_priv->fence_queue); + + /* Turn on soft trap interrupt. Vertical blank interrupts are enabled + * in mga_enable_vblank. + */ + MGA_WRITE(MGA_IEN, MGA_SOFTRAPEN); + return 0; +} + +void mga_driver_irq_uninstall(struct drm_device *dev) +{ + drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; + if (!dev_priv) + return; + + /* Disable *all* interrupts */ + MGA_WRITE(MGA_IEN, 0); + + dev->irq_enabled = false; +} diff --git a/drivers/gpu/drm/mga/mga_state.c b/drivers/gpu/drm/mga/mga_state.c new file mode 100644 index 000000000..5b7247b58 --- /dev/null +++ b/drivers/gpu/drm/mga/mga_state.c @@ -0,0 +1,1099 @@ +/* mga_state.c -- State support for MGA G200/G400 -*- linux-c -*- + * Created: Thu Jan 27 02:53:43 2000 by jhartmann@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * 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 + * VA LINUX SYSTEMS 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: + * Jeff Hartmann <jhartmann@valinux.com> + * Keith Whitwell <keith@tungstengraphics.com> + * + * Rewritten by: + * Gareth Hughes <gareth@valinux.com> + */ + +#include "mga_drv.h" + +/* ================================================================ + * DMA hardware state programming functions + */ + +static void mga_emit_clip_rect(drm_mga_private_t *dev_priv, + struct drm_clip_rect *box) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + unsigned int pitch = dev_priv->front_pitch; + DMA_LOCALS; + + BEGIN_DMA(2); + + /* Force reset of DWGCTL on G400 (eliminates clip disable bit). + */ + if (dev_priv->chipset >= MGA_CARD_TYPE_G400) { + DMA_BLOCK(MGA_DWGCTL, ctx->dwgctl, + MGA_LEN + MGA_EXEC, 0x80000000, + MGA_DWGCTL, ctx->dwgctl, + MGA_LEN + MGA_EXEC, 0x80000000); + } + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_CXBNDRY, ((box->x2 - 1) << 16) | box->x1, + MGA_YTOP, box->y1 * pitch, MGA_YBOT, (box->y2 - 1) * pitch); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g200_emit_context(drm_mga_private_t *dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + DMA_LOCALS; + + BEGIN_DMA(3); + + DMA_BLOCK(MGA_DSTORG, ctx->dstorg, + MGA_MACCESS, ctx->maccess, + MGA_PLNWT, ctx->plnwt, MGA_DWGCTL, ctx->dwgctl); + + DMA_BLOCK(MGA_ALPHACTRL, ctx->alphactrl, + MGA_FOGCOL, ctx->fogcolor, + MGA_WFLAG, ctx->wflag, MGA_ZORG, dev_priv->depth_offset); + + DMA_BLOCK(MGA_FCOL, ctx->fcol, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g400_emit_context(drm_mga_private_t *dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + DMA_LOCALS; + + BEGIN_DMA(4); + + DMA_BLOCK(MGA_DSTORG, ctx->dstorg, + MGA_MACCESS, ctx->maccess, + MGA_PLNWT, ctx->plnwt, MGA_DWGCTL, ctx->dwgctl); + + DMA_BLOCK(MGA_ALPHACTRL, ctx->alphactrl, + MGA_FOGCOL, ctx->fogcolor, + MGA_WFLAG, ctx->wflag, MGA_ZORG, dev_priv->depth_offset); + + DMA_BLOCK(MGA_WFLAG1, ctx->wflag, + MGA_TDUALSTAGE0, ctx->tdualstage0, + MGA_TDUALSTAGE1, ctx->tdualstage1, MGA_FCOL, ctx->fcol); + + DMA_BLOCK(MGA_STENCIL, ctx->stencil, + MGA_STENCILCTL, ctx->stencilctl, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g200_emit_tex0(drm_mga_private_t *dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[0]; + DMA_LOCALS; + + BEGIN_DMA(4); + + DMA_BLOCK(MGA_TEXCTL2, tex->texctl2, + MGA_TEXCTL, tex->texctl, + MGA_TEXFILTER, tex->texfilter, + MGA_TEXBORDERCOL, tex->texbordercol); + + DMA_BLOCK(MGA_TEXORG, tex->texorg, + MGA_TEXORG1, tex->texorg1, + MGA_TEXORG2, tex->texorg2, MGA_TEXORG3, tex->texorg3); + + DMA_BLOCK(MGA_TEXORG4, tex->texorg4, + MGA_TEXWIDTH, tex->texwidth, + MGA_TEXHEIGHT, tex->texheight, MGA_WR24, tex->texwidth); + + DMA_BLOCK(MGA_WR34, tex->texheight, + MGA_TEXTRANS, 0x0000ffff, + MGA_TEXTRANSHIGH, 0x0000ffff, MGA_DMAPAD, 0x00000000); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g400_emit_tex0(drm_mga_private_t *dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[0]; + DMA_LOCALS; + +/* printk("mga_g400_emit_tex0 %x %x %x\n", tex->texorg, */ +/* tex->texctl, tex->texctl2); */ + + BEGIN_DMA(6); + + DMA_BLOCK(MGA_TEXCTL2, tex->texctl2 | MGA_G400_TC2_MAGIC, + MGA_TEXCTL, tex->texctl, + MGA_TEXFILTER, tex->texfilter, + MGA_TEXBORDERCOL, tex->texbordercol); + + DMA_BLOCK(MGA_TEXORG, tex->texorg, + MGA_TEXORG1, tex->texorg1, + MGA_TEXORG2, tex->texorg2, MGA_TEXORG3, tex->texorg3); + + DMA_BLOCK(MGA_TEXORG4, tex->texorg4, + MGA_TEXWIDTH, tex->texwidth, + MGA_TEXHEIGHT, tex->texheight, MGA_WR49, 0x00000000); + + DMA_BLOCK(MGA_WR57, 0x00000000, + MGA_WR53, 0x00000000, + MGA_WR61, 0x00000000, MGA_WR52, MGA_G400_WR_MAGIC); + + DMA_BLOCK(MGA_WR60, MGA_G400_WR_MAGIC, + MGA_WR54, tex->texwidth | MGA_G400_WR_MAGIC, + MGA_WR62, tex->texheight | MGA_G400_WR_MAGIC, + MGA_DMAPAD, 0x00000000); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_TEXTRANS, 0x0000ffff, MGA_TEXTRANSHIGH, 0x0000ffff); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g400_emit_tex1(drm_mga_private_t *dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[1]; + DMA_LOCALS; + +/* printk("mga_g400_emit_tex1 %x %x %x\n", tex->texorg, */ +/* tex->texctl, tex->texctl2); */ + + BEGIN_DMA(5); + + DMA_BLOCK(MGA_TEXCTL2, (tex->texctl2 | + MGA_MAP1_ENABLE | + MGA_G400_TC2_MAGIC), + MGA_TEXCTL, tex->texctl, + MGA_TEXFILTER, tex->texfilter, + MGA_TEXBORDERCOL, tex->texbordercol); + + DMA_BLOCK(MGA_TEXORG, tex->texorg, + MGA_TEXORG1, tex->texorg1, + MGA_TEXORG2, tex->texorg2, MGA_TEXORG3, tex->texorg3); + + DMA_BLOCK(MGA_TEXORG4, tex->texorg4, + MGA_TEXWIDTH, tex->texwidth, + MGA_TEXHEIGHT, tex->texheight, MGA_WR49, 0x00000000); + + DMA_BLOCK(MGA_WR57, 0x00000000, + MGA_WR53, 0x00000000, + MGA_WR61, 0x00000000, + MGA_WR52, tex->texwidth | MGA_G400_WR_MAGIC); + + DMA_BLOCK(MGA_WR60, tex->texheight | MGA_G400_WR_MAGIC, + MGA_TEXTRANS, 0x0000ffff, + MGA_TEXTRANSHIGH, 0x0000ffff, + MGA_TEXCTL2, tex->texctl2 | MGA_G400_TC2_MAGIC); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g200_emit_pipe(drm_mga_private_t *dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + unsigned int pipe = sarea_priv->warp_pipe; + DMA_LOCALS; + + BEGIN_DMA(3); + + DMA_BLOCK(MGA_WIADDR, MGA_WMODE_SUSPEND, + MGA_WVRTXSZ, 0x00000007, + MGA_WFLAG, 0x00000000, MGA_WR24, 0x00000000); + + DMA_BLOCK(MGA_WR25, 0x00000100, + MGA_WR34, 0x00000000, + MGA_WR42, 0x0000ffff, MGA_WR60, 0x0000ffff); + + /* Padding required due to hardware bug. + */ + DMA_BLOCK(MGA_DMAPAD, 0xffffffff, + MGA_DMAPAD, 0xffffffff, + MGA_DMAPAD, 0xffffffff, + MGA_WIADDR, (dev_priv->warp_pipe_phys[pipe] | + MGA_WMODE_START | dev_priv->wagp_enable)); + + ADVANCE_DMA(); +} + +static __inline__ void mga_g400_emit_pipe(drm_mga_private_t *dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + unsigned int pipe = sarea_priv->warp_pipe; + DMA_LOCALS; + +/* printk("mga_g400_emit_pipe %x\n", pipe); */ + + BEGIN_DMA(10); + + DMA_BLOCK(MGA_WIADDR2, MGA_WMODE_SUSPEND, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); + + if (pipe & MGA_T2) { + DMA_BLOCK(MGA_WVRTXSZ, 0x00001e09, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); + + DMA_BLOCK(MGA_WACCEPTSEQ, 0x00000000, + MGA_WACCEPTSEQ, 0x00000000, + MGA_WACCEPTSEQ, 0x00000000, + MGA_WACCEPTSEQ, 0x1e000000); + } else { + if (dev_priv->warp_pipe & MGA_T2) { + /* Flush the WARP pipe */ + DMA_BLOCK(MGA_YDST, 0x00000000, + MGA_FXLEFT, 0x00000000, + MGA_FXRIGHT, 0x00000001, + MGA_DWGCTL, MGA_DWGCTL_FLUSH); + + DMA_BLOCK(MGA_LEN + MGA_EXEC, 0x00000001, + MGA_DWGSYNC, 0x00007000, + MGA_TEXCTL2, MGA_G400_TC2_MAGIC, + MGA_LEN + MGA_EXEC, 0x00000000); + + DMA_BLOCK(MGA_TEXCTL2, (MGA_DUALTEX | + MGA_G400_TC2_MAGIC), + MGA_LEN + MGA_EXEC, 0x00000000, + MGA_TEXCTL2, MGA_G400_TC2_MAGIC, + MGA_DMAPAD, 0x00000000); + } + + DMA_BLOCK(MGA_WVRTXSZ, 0x00001807, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); + + DMA_BLOCK(MGA_WACCEPTSEQ, 0x00000000, + MGA_WACCEPTSEQ, 0x00000000, + MGA_WACCEPTSEQ, 0x00000000, + MGA_WACCEPTSEQ, 0x18000000); + } + + DMA_BLOCK(MGA_WFLAG, 0x00000000, + MGA_WFLAG1, 0x00000000, + MGA_WR56, MGA_G400_WR56_MAGIC, MGA_DMAPAD, 0x00000000); + + DMA_BLOCK(MGA_WR49, 0x00000000, /* tex0 */ + MGA_WR57, 0x00000000, /* tex0 */ + MGA_WR53, 0x00000000, /* tex1 */ + MGA_WR61, 0x00000000); /* tex1 */ + + DMA_BLOCK(MGA_WR54, MGA_G400_WR_MAGIC, /* tex0 width */ + MGA_WR62, MGA_G400_WR_MAGIC, /* tex0 height */ + MGA_WR52, MGA_G400_WR_MAGIC, /* tex1 width */ + MGA_WR60, MGA_G400_WR_MAGIC); /* tex1 height */ + + /* Padding required due to hardware bug */ + DMA_BLOCK(MGA_DMAPAD, 0xffffffff, + MGA_DMAPAD, 0xffffffff, + MGA_DMAPAD, 0xffffffff, + MGA_WIADDR2, (dev_priv->warp_pipe_phys[pipe] | + MGA_WMODE_START | dev_priv->wagp_enable)); + + ADVANCE_DMA(); +} + +static void mga_g200_emit_state(drm_mga_private_t *dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + unsigned int dirty = sarea_priv->dirty; + + if (sarea_priv->warp_pipe != dev_priv->warp_pipe) { + mga_g200_emit_pipe(dev_priv); + dev_priv->warp_pipe = sarea_priv->warp_pipe; + } + + if (dirty & MGA_UPLOAD_CONTEXT) { + mga_g200_emit_context(dev_priv); + sarea_priv->dirty &= ~MGA_UPLOAD_CONTEXT; + } + + if (dirty & MGA_UPLOAD_TEX0) { + mga_g200_emit_tex0(dev_priv); + sarea_priv->dirty &= ~MGA_UPLOAD_TEX0; + } +} + +static void mga_g400_emit_state(drm_mga_private_t *dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + unsigned int dirty = sarea_priv->dirty; + int multitex = sarea_priv->warp_pipe & MGA_T2; + + if (sarea_priv->warp_pipe != dev_priv->warp_pipe) { + mga_g400_emit_pipe(dev_priv); + dev_priv->warp_pipe = sarea_priv->warp_pipe; + } + + if (dirty & MGA_UPLOAD_CONTEXT) { + mga_g400_emit_context(dev_priv); + sarea_priv->dirty &= ~MGA_UPLOAD_CONTEXT; + } + + if (dirty & MGA_UPLOAD_TEX0) { + mga_g400_emit_tex0(dev_priv); + sarea_priv->dirty &= ~MGA_UPLOAD_TEX0; + } + + if ((dirty & MGA_UPLOAD_TEX1) && multitex) { + mga_g400_emit_tex1(dev_priv); + sarea_priv->dirty &= ~MGA_UPLOAD_TEX1; + } +} + +/* ================================================================ + * SAREA state verification + */ + +/* Disallow all write destinations except the front and backbuffer. + */ +static int mga_verify_context(drm_mga_private_t *dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + + if (ctx->dstorg != dev_priv->front_offset && + ctx->dstorg != dev_priv->back_offset) { + DRM_ERROR("*** bad DSTORG: %x (front %x, back %x)\n\n", + ctx->dstorg, dev_priv->front_offset, + dev_priv->back_offset); + ctx->dstorg = 0; + return -EINVAL; + } + + return 0; +} + +/* Disallow texture reads from PCI space. + */ +static int mga_verify_tex(drm_mga_private_t *dev_priv, int unit) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[unit]; + unsigned int org; + + org = tex->texorg & (MGA_TEXORGMAP_MASK | MGA_TEXORGACC_MASK); + + if (org == (MGA_TEXORGMAP_SYSMEM | MGA_TEXORGACC_PCI)) { + DRM_ERROR("*** bad TEXORG: 0x%x, unit %d\n", tex->texorg, unit); + tex->texorg = 0; + return -EINVAL; + } + + return 0; +} + +static int mga_verify_state(drm_mga_private_t *dev_priv) +{ + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + unsigned int dirty = sarea_priv->dirty; + int ret = 0; + + if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS) + sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS; + + if (dirty & MGA_UPLOAD_CONTEXT) + ret |= mga_verify_context(dev_priv); + + if (dirty & MGA_UPLOAD_TEX0) + ret |= mga_verify_tex(dev_priv, 0); + + if (dev_priv->chipset >= MGA_CARD_TYPE_G400) { + if (dirty & MGA_UPLOAD_TEX1) + ret |= mga_verify_tex(dev_priv, 1); + + if (dirty & MGA_UPLOAD_PIPE) + ret |= (sarea_priv->warp_pipe > MGA_MAX_G400_PIPES); + } else { + if (dirty & MGA_UPLOAD_PIPE) + ret |= (sarea_priv->warp_pipe > MGA_MAX_G200_PIPES); + } + + return (ret == 0); +} + +static int mga_verify_iload(drm_mga_private_t *dev_priv, + unsigned int dstorg, unsigned int length) +{ + if (dstorg < dev_priv->texture_offset || + dstorg + length > (dev_priv->texture_offset + + dev_priv->texture_size)) { + DRM_ERROR("*** bad iload DSTORG: 0x%x\n", dstorg); + return -EINVAL; + } + + if (length & MGA_ILOAD_MASK) { + DRM_ERROR("*** bad iload length: 0x%x\n", + length & MGA_ILOAD_MASK); + return -EINVAL; + } + + return 0; +} + +static int mga_verify_blit(drm_mga_private_t *dev_priv, + unsigned int srcorg, unsigned int dstorg) +{ + if ((srcorg & 0x3) == (MGA_SRCACC_PCI | MGA_SRCMAP_SYSMEM) || + (dstorg & 0x3) == (MGA_SRCACC_PCI | MGA_SRCMAP_SYSMEM)) { + DRM_ERROR("*** bad blit: src=0x%x dst=0x%x\n", srcorg, dstorg); + return -EINVAL; + } + return 0; +} + +/* ================================================================ + * + */ + +static void mga_dma_dispatch_clear(struct drm_device *dev, drm_mga_clear_t *clear) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + struct drm_clip_rect *pbox = sarea_priv->boxes; + int nbox = sarea_priv->nbox; + int i; + DMA_LOCALS; + DRM_DEBUG("\n"); + + BEGIN_DMA(1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DWGSYNC, 0x00007100, MGA_DWGSYNC, 0x00007000); + + ADVANCE_DMA(); + + for (i = 0; i < nbox; i++) { + struct drm_clip_rect *box = &pbox[i]; + u32 height = box->y2 - box->y1; + + DRM_DEBUG(" from=%d,%d to=%d,%d\n", + box->x1, box->y1, box->x2, box->y2); + + if (clear->flags & MGA_FRONT) { + BEGIN_DMA(2); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_PLNWT, clear->color_mask, + MGA_YDSTLEN, (box->y1 << 16) | height, + MGA_FXBNDRY, (box->x2 << 16) | box->x1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_FCOL, clear->clear_color, + MGA_DSTORG, dev_priv->front_offset, + MGA_DWGCTL + MGA_EXEC, dev_priv->clear_cmd); + + ADVANCE_DMA(); + } + + if (clear->flags & MGA_BACK) { + BEGIN_DMA(2); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_PLNWT, clear->color_mask, + MGA_YDSTLEN, (box->y1 << 16) | height, + MGA_FXBNDRY, (box->x2 << 16) | box->x1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_FCOL, clear->clear_color, + MGA_DSTORG, dev_priv->back_offset, + MGA_DWGCTL + MGA_EXEC, dev_priv->clear_cmd); + + ADVANCE_DMA(); + } + + if (clear->flags & MGA_DEPTH) { + BEGIN_DMA(2); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_PLNWT, clear->depth_mask, + MGA_YDSTLEN, (box->y1 << 16) | height, + MGA_FXBNDRY, (box->x2 << 16) | box->x1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_FCOL, clear->clear_depth, + MGA_DSTORG, dev_priv->depth_offset, + MGA_DWGCTL + MGA_EXEC, dev_priv->clear_cmd); + + ADVANCE_DMA(); + } + + } + + BEGIN_DMA(1); + + /* Force reset of DWGCTL */ + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_PLNWT, ctx->plnwt, MGA_DWGCTL, ctx->dwgctl); + + ADVANCE_DMA(); + + FLUSH_DMA(); +} + +static void mga_dma_dispatch_swap(struct drm_device *dev) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + struct drm_clip_rect *pbox = sarea_priv->boxes; + int nbox = sarea_priv->nbox; + int i; + DMA_LOCALS; + DRM_DEBUG("\n"); + + sarea_priv->last_frame.head = dev_priv->prim.tail; + sarea_priv->last_frame.wrap = dev_priv->prim.last_wrap; + + BEGIN_DMA(4 + nbox); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DWGSYNC, 0x00007100, MGA_DWGSYNC, 0x00007000); + + DMA_BLOCK(MGA_DSTORG, dev_priv->front_offset, + MGA_MACCESS, dev_priv->maccess, + MGA_SRCORG, dev_priv->back_offset, + MGA_AR5, dev_priv->front_pitch); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_PLNWT, 0xffffffff, MGA_DWGCTL, MGA_DWGCTL_COPY); + + for (i = 0; i < nbox; i++) { + struct drm_clip_rect *box = &pbox[i]; + u32 height = box->y2 - box->y1; + u32 start = box->y1 * dev_priv->front_pitch; + + DRM_DEBUG(" from=%d,%d to=%d,%d\n", + box->x1, box->y1, box->x2, box->y2); + + DMA_BLOCK(MGA_AR0, start + box->x2 - 1, + MGA_AR3, start + box->x1, + MGA_FXBNDRY, ((box->x2 - 1) << 16) | box->x1, + MGA_YDSTLEN + MGA_EXEC, (box->y1 << 16) | height); + } + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_PLNWT, ctx->plnwt, + MGA_SRCORG, dev_priv->front_offset, MGA_DWGCTL, ctx->dwgctl); + + ADVANCE_DMA(); + + FLUSH_DMA(); + + DRM_DEBUG("... done.\n"); +} + +static void mga_dma_dispatch_vertex(struct drm_device *dev, struct drm_buf *buf) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_buf_priv_t *buf_priv = buf->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + u32 address = (u32) buf->bus_address; + u32 length = (u32) buf->used; + int i = 0; + DMA_LOCALS; + DRM_DEBUG("buf=%d used=%d\n", buf->idx, buf->used); + + if (buf->used) { + buf_priv->dispatched = 1; + + MGA_EMIT_STATE(dev_priv, sarea_priv->dirty); + + do { + if (i < sarea_priv->nbox) { + mga_emit_clip_rect(dev_priv, + &sarea_priv->boxes[i]); + } + + BEGIN_DMA(1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_SECADDRESS, (address | + MGA_DMA_VERTEX), + MGA_SECEND, ((address + length) | + dev_priv->dma_access)); + + ADVANCE_DMA(); + } while (++i < sarea_priv->nbox); + } + + if (buf_priv->discard) { + AGE_BUFFER(buf_priv); + buf->pending = 0; + buf->used = 0; + buf_priv->dispatched = 0; + + mga_freelist_put(dev, buf); + } + + FLUSH_DMA(); +} + +static void mga_dma_dispatch_indices(struct drm_device *dev, struct drm_buf *buf, + unsigned int start, unsigned int end) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_buf_priv_t *buf_priv = buf->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + u32 address = (u32) buf->bus_address; + int i = 0; + DMA_LOCALS; + DRM_DEBUG("buf=%d start=%d end=%d\n", buf->idx, start, end); + + if (start != end) { + buf_priv->dispatched = 1; + + MGA_EMIT_STATE(dev_priv, sarea_priv->dirty); + + do { + if (i < sarea_priv->nbox) { + mga_emit_clip_rect(dev_priv, + &sarea_priv->boxes[i]); + } + + BEGIN_DMA(1); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_SETUPADDRESS, address + start, + MGA_SETUPEND, ((address + end) | + dev_priv->dma_access)); + + ADVANCE_DMA(); + } while (++i < sarea_priv->nbox); + } + + if (buf_priv->discard) { + AGE_BUFFER(buf_priv); + buf->pending = 0; + buf->used = 0; + buf_priv->dispatched = 0; + + mga_freelist_put(dev, buf); + } + + FLUSH_DMA(); +} + +/* This copies a 64 byte aligned agp region to the frambuffer with a + * standard blit, the ioctl needs to do checking. + */ +static void mga_dma_dispatch_iload(struct drm_device *dev, struct drm_buf *buf, + unsigned int dstorg, unsigned int length) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_buf_priv_t *buf_priv = buf->dev_private; + drm_mga_context_regs_t *ctx = &dev_priv->sarea_priv->context_state; + u32 srcorg = + buf->bus_address | dev_priv->dma_access | MGA_SRCMAP_SYSMEM; + u32 y2; + DMA_LOCALS; + DRM_DEBUG("buf=%d used=%d\n", buf->idx, buf->used); + + y2 = length / 64; + + BEGIN_DMA(5); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DWGSYNC, 0x00007100, MGA_DWGSYNC, 0x00007000); + + DMA_BLOCK(MGA_DSTORG, dstorg, + MGA_MACCESS, 0x00000000, MGA_SRCORG, srcorg, MGA_AR5, 64); + + DMA_BLOCK(MGA_PITCH, 64, + MGA_PLNWT, 0xffffffff, + MGA_DMAPAD, 0x00000000, MGA_DWGCTL, MGA_DWGCTL_COPY); + + DMA_BLOCK(MGA_AR0, 63, + MGA_AR3, 0, + MGA_FXBNDRY, (63 << 16) | 0, MGA_YDSTLEN + MGA_EXEC, y2); + + DMA_BLOCK(MGA_PLNWT, ctx->plnwt, + MGA_SRCORG, dev_priv->front_offset, + MGA_PITCH, dev_priv->front_pitch, MGA_DWGSYNC, 0x00007000); + + ADVANCE_DMA(); + + AGE_BUFFER(buf_priv); + + buf->pending = 0; + buf->used = 0; + buf_priv->dispatched = 0; + + mga_freelist_put(dev, buf); + + FLUSH_DMA(); +} + +static void mga_dma_dispatch_blit(struct drm_device *dev, drm_mga_blit_t *blit) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_context_regs_t *ctx = &sarea_priv->context_state; + struct drm_clip_rect *pbox = sarea_priv->boxes; + int nbox = sarea_priv->nbox; + u32 scandir = 0, i; + DMA_LOCALS; + DRM_DEBUG("\n"); + + BEGIN_DMA(4 + nbox); + + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DWGSYNC, 0x00007100, MGA_DWGSYNC, 0x00007000); + + DMA_BLOCK(MGA_DWGCTL, MGA_DWGCTL_COPY, + MGA_PLNWT, blit->planemask, + MGA_SRCORG, blit->srcorg, MGA_DSTORG, blit->dstorg); + + DMA_BLOCK(MGA_SGN, scandir, + MGA_MACCESS, dev_priv->maccess, + MGA_AR5, blit->ydir * blit->src_pitch, + MGA_PITCH, blit->dst_pitch); + + for (i = 0; i < nbox; i++) { + int srcx = pbox[i].x1 + blit->delta_sx; + int srcy = pbox[i].y1 + blit->delta_sy; + int dstx = pbox[i].x1 + blit->delta_dx; + int dsty = pbox[i].y1 + blit->delta_dy; + int h = pbox[i].y2 - pbox[i].y1; + int w = pbox[i].x2 - pbox[i].x1 - 1; + int start; + + if (blit->ydir == -1) + srcy = blit->height - srcy - 1; + + start = srcy * blit->src_pitch + srcx; + + DMA_BLOCK(MGA_AR0, start + w, + MGA_AR3, start, + MGA_FXBNDRY, ((dstx + w) << 16) | (dstx & 0xffff), + MGA_YDSTLEN + MGA_EXEC, (dsty << 16) | h); + } + + /* Do something to flush AGP? + */ + + /* Force reset of DWGCTL */ + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_PLNWT, ctx->plnwt, + MGA_PITCH, dev_priv->front_pitch, MGA_DWGCTL, ctx->dwgctl); + + ADVANCE_DMA(); +} + +/* ================================================================ + * + */ + +static int mga_dma_clear(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_clear_t *clear = data; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS) + sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS; + + WRAP_TEST_WITH_RETURN(dev_priv); + + mga_dma_dispatch_clear(dev, clear); + + /* Make sure we restore the 3D state next time. + */ + dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT; + + return 0; +} + +static int mga_dma_swap(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS) + sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS; + + WRAP_TEST_WITH_RETURN(dev_priv); + + mga_dma_dispatch_swap(dev); + + /* Make sure we restore the 3D state next time. + */ + dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT; + + return 0; +} + +static int mga_dma_vertex(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + struct drm_device_dma *dma = dev->dma; + struct drm_buf *buf; + drm_mga_buf_priv_t *buf_priv; + drm_mga_vertex_t *vertex = data; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + if (vertex->idx < 0 || vertex->idx > dma->buf_count) + return -EINVAL; + buf = dma->buflist[vertex->idx]; + buf_priv = buf->dev_private; + + buf->used = vertex->used; + buf_priv->discard = vertex->discard; + + if (!mga_verify_state(dev_priv)) { + if (vertex->discard) { + if (buf_priv->dispatched == 1) + AGE_BUFFER(buf_priv); + buf_priv->dispatched = 0; + mga_freelist_put(dev, buf); + } + return -EINVAL; + } + + WRAP_TEST_WITH_RETURN(dev_priv); + + mga_dma_dispatch_vertex(dev, buf); + + return 0; +} + +static int mga_dma_indices(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + struct drm_device_dma *dma = dev->dma; + struct drm_buf *buf; + drm_mga_buf_priv_t *buf_priv; + drm_mga_indices_t *indices = data; + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + if (indices->idx < 0 || indices->idx > dma->buf_count) + return -EINVAL; + + buf = dma->buflist[indices->idx]; + buf_priv = buf->dev_private; + + buf_priv->discard = indices->discard; + + if (!mga_verify_state(dev_priv)) { + if (indices->discard) { + if (buf_priv->dispatched == 1) + AGE_BUFFER(buf_priv); + buf_priv->dispatched = 0; + mga_freelist_put(dev, buf); + } + return -EINVAL; + } + + WRAP_TEST_WITH_RETURN(dev_priv); + + mga_dma_dispatch_indices(dev, buf, indices->start, indices->end); + + return 0; +} + +static int mga_dma_iload(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + struct drm_device_dma *dma = dev->dma; + drm_mga_private_t *dev_priv = dev->dev_private; + struct drm_buf *buf; + drm_mga_iload_t *iload = data; + DRM_DEBUG("\n"); + + LOCK_TEST_WITH_RETURN(dev, file_priv); + +#if 0 + if (mga_do_wait_for_idle(dev_priv) < 0) { + if (MGA_DMA_DEBUG) + DRM_INFO("-EBUSY\n"); + return -EBUSY; + } +#endif + if (iload->idx < 0 || iload->idx > dma->buf_count) + return -EINVAL; + + buf = dma->buflist[iload->idx]; + + if (mga_verify_iload(dev_priv, iload->dstorg, iload->length)) { + mga_freelist_put(dev, buf); + return -EINVAL; + } + + WRAP_TEST_WITH_RETURN(dev_priv); + + mga_dma_dispatch_iload(dev, buf, iload->dstorg, iload->length); + + /* Make sure we restore the 3D state next time. + */ + dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT; + + return 0; +} + +static int mga_dma_blit(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; + drm_mga_blit_t *blit = data; + DRM_DEBUG("\n"); + + LOCK_TEST_WITH_RETURN(dev, file_priv); + + if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS) + sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS; + + if (mga_verify_blit(dev_priv, blit->srcorg, blit->dstorg)) + return -EINVAL; + + WRAP_TEST_WITH_RETURN(dev_priv); + + mga_dma_dispatch_blit(dev, blit); + + /* Make sure we restore the 3D state next time. + */ + dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT; + + return 0; +} + +int mga_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + drm_mga_getparam_t *param = data; + struct pci_dev *pdev = to_pci_dev(dev->dev); + int value; + + if (!dev_priv) { + DRM_ERROR("called with no initialization\n"); + return -EINVAL; + } + + DRM_DEBUG("pid=%d\n", task_pid_nr(current)); + + switch (param->param) { + case MGA_PARAM_IRQ_NR: + value = pdev->irq; + break; + case MGA_PARAM_CARD_TYPE: + value = dev_priv->chipset; + break; + default: + return -EINVAL; + } + + if (copy_to_user(param->value, &value, sizeof(int))) { + DRM_ERROR("copy_to_user\n"); + return -EFAULT; + } + + return 0; +} + +static int mga_set_fence(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + u32 *fence = data; + DMA_LOCALS; + + if (!dev_priv) { + DRM_ERROR("called with no initialization\n"); + return -EINVAL; + } + + DRM_DEBUG("pid=%d\n", task_pid_nr(current)); + + /* I would normal do this assignment in the declaration of fence, + * but dev_priv may be NULL. + */ + + *fence = dev_priv->next_fence_to_post; + dev_priv->next_fence_to_post++; + + BEGIN_DMA(1); + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_SOFTRAP, 0x00000000); + ADVANCE_DMA(); + + return 0; +} + +static int mga_wait_fence(struct drm_device *dev, void *data, struct drm_file * +file_priv) +{ + drm_mga_private_t *dev_priv = dev->dev_private; + u32 *fence = data; + + if (!dev_priv) { + DRM_ERROR("called with no initialization\n"); + return -EINVAL; + } + + DRM_DEBUG("pid=%d\n", task_pid_nr(current)); + + mga_driver_fence_wait(dev, fence); + return 0; +} + +const struct drm_ioctl_desc mga_ioctls[] = { + DRM_IOCTL_DEF_DRV(MGA_INIT, mga_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_IOCTL_DEF_DRV(MGA_FLUSH, mga_dma_flush, DRM_AUTH), + DRM_IOCTL_DEF_DRV(MGA_RESET, mga_dma_reset, DRM_AUTH), + DRM_IOCTL_DEF_DRV(MGA_SWAP, mga_dma_swap, DRM_AUTH), + DRM_IOCTL_DEF_DRV(MGA_CLEAR, mga_dma_clear, DRM_AUTH), + DRM_IOCTL_DEF_DRV(MGA_VERTEX, mga_dma_vertex, DRM_AUTH), + DRM_IOCTL_DEF_DRV(MGA_INDICES, mga_dma_indices, DRM_AUTH), + DRM_IOCTL_DEF_DRV(MGA_ILOAD, mga_dma_iload, DRM_AUTH), + DRM_IOCTL_DEF_DRV(MGA_BLIT, mga_dma_blit, DRM_AUTH), + DRM_IOCTL_DEF_DRV(MGA_GETPARAM, mga_getparam, DRM_AUTH), + DRM_IOCTL_DEF_DRV(MGA_SET_FENCE, mga_set_fence, DRM_AUTH), + DRM_IOCTL_DEF_DRV(MGA_WAIT_FENCE, mga_wait_fence, DRM_AUTH), + DRM_IOCTL_DEF_DRV(MGA_DMA_BOOTSTRAP, mga_dma_bootstrap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), +}; + +int mga_max_ioctl = ARRAY_SIZE(mga_ioctls); diff --git a/drivers/gpu/drm/mga/mga_warp.c b/drivers/gpu/drm/mga/mga_warp.c new file mode 100644 index 000000000..b5ef1d2c8 --- /dev/null +++ b/drivers/gpu/drm/mga/mga_warp.c @@ -0,0 +1,167 @@ +/* mga_warp.c -- Matrox G200/G400 WARP engine management -*- linux-c -*- + * Created: Thu Jan 11 21:29:32 2001 by gareth@valinux.com + * + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * 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 + * VA LINUX SYSTEMS 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: + * Gareth Hughes <gareth@valinux.com> + */ + +#include <linux/firmware.h> +#include <linux/ihex.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#include "mga_drv.h" + +#define FIRMWARE_G200 "matrox/g200_warp.fw" +#define FIRMWARE_G400 "matrox/g400_warp.fw" + +MODULE_FIRMWARE(FIRMWARE_G200); +MODULE_FIRMWARE(FIRMWARE_G400); + +#define MGA_WARP_CODE_ALIGN 256 /* in bytes */ + +#define WARP_UCODE_SIZE(size) ALIGN(size, MGA_WARP_CODE_ALIGN) + +int mga_warp_install_microcode(drm_mga_private_t *dev_priv) +{ + unsigned char *vcbase = dev_priv->warp->handle; + unsigned long pcbase = dev_priv->warp->offset; + const char *firmware_name; + struct platform_device *pdev; + const struct firmware *fw = NULL; + const struct ihex_binrec *rec; + unsigned int size; + int n_pipes, where; + int rc = 0; + + switch (dev_priv->chipset) { + case MGA_CARD_TYPE_G400: + case MGA_CARD_TYPE_G550: + firmware_name = FIRMWARE_G400; + n_pipes = MGA_MAX_G400_PIPES; + break; + case MGA_CARD_TYPE_G200: + firmware_name = FIRMWARE_G200; + n_pipes = MGA_MAX_G200_PIPES; + break; + default: + return -EINVAL; + } + + pdev = platform_device_register_simple("mga_warp", 0, NULL, 0); + if (IS_ERR(pdev)) { + DRM_ERROR("mga: Failed to register microcode\n"); + return PTR_ERR(pdev); + } + rc = request_ihex_firmware(&fw, firmware_name, &pdev->dev); + platform_device_unregister(pdev); + if (rc) { + DRM_ERROR("mga: Failed to load microcode \"%s\"\n", + firmware_name); + return rc; + } + + size = 0; + where = 0; + for (rec = (const struct ihex_binrec *)fw->data; + rec; + rec = ihex_next_binrec(rec)) { + size += WARP_UCODE_SIZE(be16_to_cpu(rec->len)); + where++; + } + + if (where != n_pipes) { + DRM_ERROR("mga: Invalid microcode \"%s\"\n", firmware_name); + rc = -EINVAL; + goto out; + } + size = PAGE_ALIGN(size); + DRM_DEBUG("MGA ucode size = %d bytes\n", size); + if (size > dev_priv->warp->size) { + DRM_ERROR("microcode too large! (%u > %lu)\n", + size, dev_priv->warp->size); + rc = -ENOMEM; + goto out; + } + + memset(dev_priv->warp_pipe_phys, 0, sizeof(dev_priv->warp_pipe_phys)); + + where = 0; + for (rec = (const struct ihex_binrec *)fw->data; + rec; + rec = ihex_next_binrec(rec)) { + unsigned int src_size, dst_size; + + DRM_DEBUG(" pcbase = 0x%08lx vcbase = %p\n", pcbase, vcbase); + dev_priv->warp_pipe_phys[where] = pcbase; + src_size = be16_to_cpu(rec->len); + dst_size = WARP_UCODE_SIZE(src_size); + memcpy(vcbase, rec->data, src_size); + pcbase += dst_size; + vcbase += dst_size; + where++; + } + +out: + release_firmware(fw); + return rc; +} + +#define WMISC_EXPECTED (MGA_WUCODECACHE_ENABLE | MGA_WMASTER_ENABLE) + +int mga_warp_init(drm_mga_private_t *dev_priv) +{ + u32 wmisc; + + /* FIXME: Get rid of these damned magic numbers... + */ + switch (dev_priv->chipset) { + case MGA_CARD_TYPE_G400: + case MGA_CARD_TYPE_G550: + MGA_WRITE(MGA_WIADDR2, MGA_WMODE_SUSPEND); + MGA_WRITE(MGA_WGETMSB, 0x00000E00); + MGA_WRITE(MGA_WVRTXSZ, 0x00001807); + MGA_WRITE(MGA_WACCEPTSEQ, 0x18000000); + break; + case MGA_CARD_TYPE_G200: + MGA_WRITE(MGA_WIADDR, MGA_WMODE_SUSPEND); + MGA_WRITE(MGA_WGETMSB, 0x1606); + MGA_WRITE(MGA_WVRTXSZ, 7); + break; + default: + return -EINVAL; + } + + MGA_WRITE(MGA_WMISC, (MGA_WUCODECACHE_ENABLE | + MGA_WMASTER_ENABLE | MGA_WCACHEFLUSH_ENABLE)); + wmisc = MGA_READ(MGA_WMISC); + if (wmisc != WMISC_EXPECTED) { + DRM_ERROR("WARP engine config failed! 0x%x != 0x%x\n", + wmisc, WMISC_EXPECTED); + return -EINVAL; + } + + return 0; +} |