--- /dev/null
+#ifndef _INTEL_H_
+#define _INTEL_H_
+
+#include "xf86drm.h" /* drm_handle_t, etc */
+
+/* Intel */
+#ifndef PCI_CHIP_I810
+#define PCI_CHIP_I810 0x7121
+#define PCI_CHIP_I810_DC100 0x7123
+#define PCI_CHIP_I810_E 0x7125
+#define PCI_CHIP_I815 0x1132
+#define PCI_CHIP_I810_BRIDGE 0x7120
+#define PCI_CHIP_I810_DC100_BRIDGE 0x7122
+#define PCI_CHIP_I810_E_BRIDGE 0x7124
+#define PCI_CHIP_I815_BRIDGE 0x1130
+#endif
+
+#define PCI_CHIP_845_G 0x2562
+#define PCI_CHIP_I830_M 0x3577
+
+#ifndef PCI_CHIP_I855_GM
+#define PCI_CHIP_I855_GM 0x3582
+#define PCI_CHIP_I855_GM_BRIDGE 0x3580
+#endif
+
+#ifndef PCI_CHIP_I865_G
+#define PCI_CHIP_I865_G 0x2572
+#define PCI_CHIP_I865_G_BRIDGE 0x2570
+#endif
+
+#ifndef PCI_CHIP_I915_G
+#define PCI_CHIP_I915_G 0x2582
+#define PCI_CHIP_I915_G_BRIDGE 0x2580
+#endif
+
+#ifndef PCI_CHIP_I915_GM
+#define PCI_CHIP_I915_GM 0x2592
+#define PCI_CHIP_I915_GM_BRIDGE 0x2590
+#endif
+
+#ifndef PCI_CHIP_E7221_G
+#define PCI_CHIP_E7221_G 0x258A
+/* Same as I915_G_BRIDGE */
+#define PCI_CHIP_E7221_G_BRIDGE 0x2580
+#endif
+
+#ifndef PCI_CHIP_I945_G
+#define PCI_CHIP_I945_G 0x2772
+#define PCI_CHIP_I945_G_BRIDGE 0x2770
+#endif
+
+#ifndef PCI_CHIP_I945_GM
+#define PCI_CHIP_I945_GM 0x27A2
+#define PCI_CHIP_I945_GM_BRIDGE 0x27A0
+#endif
+
+#define IS_I810(pI810) (pI810->Chipset == PCI_CHIP_I810 || \
+ pI810->Chipset == PCI_CHIP_I810_DC100 || \
+ pI810->Chipset == PCI_CHIP_I810_E)
+#define IS_I815(pI810) (pI810->Chipset == PCI_CHIP_I815)
+#define IS_I830(pI810) (pI810->Chipset == PCI_CHIP_I830_M)
+#define IS_845G(pI810) (pI810->Chipset == PCI_CHIP_845_G)
+#define IS_I85X(pI810) (pI810->Chipset == PCI_CHIP_I855_GM)
+#define IS_I852(pI810) (pI810->Chipset == PCI_CHIP_I855_GM && (pI810->variant == I852_GM || pI810->variant == I852_GME))
+#define IS_I855(pI810) (pI810->Chipset == PCI_CHIP_I855_GM && (pI810->variant == I855_GM || pI810->variant == I855_GME))
+#define IS_I865G(pI810) (pI810->Chipset == PCI_CHIP_I865_G)
+
+#define IS_I915G(pI810) (pI810->Chipset == PCI_CHIP_I915_G || pI810->Chipset == PCI_CHIP_E7221_G)
+#define IS_I915GM(pI810) (pI810->Chipset == PCI_CHIP_I915_GM)
+#define IS_I945G(pI810) (pI810->Chipset == PCI_CHIP_I945_G)
+#define IS_I945GM(pI810) (pI810->Chipset == PCI_CHIP_I945_GM)
+#define IS_I9XX(pI810) (IS_I915G(pI810) || IS_I915GM(pI810) || IS_I945G(pI810) || IS_I945GM(pI810))
+
+#define IS_MOBILE(pI810) (IS_I830(pI810) || IS_I85X(pI810) || IS_I915GM(pI810) || IS_I945GM(pI810))
+
+#define I830_GMCH_CTRL 0x52
+
+
+#define I830_GMCH_GMS_MASK 0x70
+#define I830_GMCH_GMS_DISABLED 0x00
+#define I830_GMCH_GMS_LOCAL 0x10
+#define I830_GMCH_GMS_STOLEN_512 0x20
+#define I830_GMCH_GMS_STOLEN_1024 0x30
+#define I830_GMCH_GMS_STOLEN_8192 0x40
+
+#define I855_GMCH_GMS_MASK (0x7 << 4)
+#define I855_GMCH_GMS_DISABLED 0x00
+#define I855_GMCH_GMS_STOLEN_1M (0x1 << 4)
+#define I855_GMCH_GMS_STOLEN_4M (0x2 << 4)
+#define I855_GMCH_GMS_STOLEN_8M (0x3 << 4)
+#define I855_GMCH_GMS_STOLEN_16M (0x4 << 4)
+#define I855_GMCH_GMS_STOLEN_32M (0x5 << 4)
+#define I915G_GMCH_GMS_STOLEN_48M (0x6 << 4)
+#define I915G_GMCH_GMS_STOLEN_64M (0x7 << 4)
+
+typedef unsigned char Bool;
+#define TRUE 1
+#define FALSE 0
+
+#define PIPE_NONE 0<<0
+#define PIPE_CRT 1<<0
+#define PIPE_TV 1<<1
+#define PIPE_DFP 1<<2
+#define PIPE_LFP 1<<3
+#define PIPE_CRT2 1<<4
+#define PIPE_TV2 1<<5
+#define PIPE_DFP2 1<<6
+#define PIPE_LFP2 1<<7
+
+typedef struct _I830MemPool *I830MemPoolPtr;
+typedef struct _I830MemRange *I830MemRangePtr;
+typedef struct _I830MemRange {
+ long Start;
+ long End;
+ long Size;
+ unsigned long Physical;
+ unsigned long Offset; /* Offset of AGP-allocated portion */
+ unsigned long Alignment;
+ drm_handle_t Key;
+ unsigned long Pitch; // add pitch
+ I830MemPoolPtr Pool;
+} I830MemRange;
+
+typedef struct _I830MemPool {
+ I830MemRange Total;
+ I830MemRange Free;
+ I830MemRange Fixed;
+ I830MemRange Allocated;
+} I830MemPool;
+
+typedef struct {
+ int tail_mask;
+ I830MemRange mem;
+ unsigned char *virtual_start;
+ int head;
+ int tail;
+ int space;
+} I830RingBuffer;
+
+typedef struct {
+ unsigned int Fence[8];
+} I830RegRec, *I830RegPtr;
+
+
+typedef struct _I830Rec {
+ unsigned char *MMIOBase;
+ unsigned char *FbBase;
+ int cpp;
+
+ unsigned int bios_version;
+
+ /* These are set in PreInit and never changed. */
+ long FbMapSize;
+ long TotalVideoRam;
+ I830MemRange StolenMemory; /* pre-allocated memory */
+ long BIOSMemorySize; /* min stolen pool size */
+ int BIOSMemSizeLoc;
+
+ /* These change according to what has been allocated. */
+ long FreeMemory;
+ I830MemRange MemoryAperture;
+ I830MemPool StolenPool;
+ long allocatedMemory;
+
+ /* Regions allocated either from the above pools, or from agpgart. */
+ /* for single and dual head configurations */
+ I830MemRange FrontBuffer;
+ I830MemRange FrontBuffer2;
+ I830MemRange Scratch;
+ I830MemRange Scratch2;
+
+ I830RingBuffer *LpRing;
+
+ I830MemRange BackBuffer;
+ I830MemRange DepthBuffer;
+ I830MemRange TexMem;
+ int TexGranularity;
+ I830MemRange ContextMem;
+ int drmMinor;
+ Bool have3DWindows;
+
+ Bool NeedRingBufferLow;
+ Bool allowPageFlip;
+ Bool disableTiling;
+
+ int Chipset;
+ unsigned long LinearAddr;
+ unsigned long MMIOAddr;
+
+ drmSize registerSize; /**< \brief MMIO register map size */
+ drm_handle_t registerHandle; /**< \brief MMIO register map handle */
+ // IOADDRESS ioBase;
+ int irq; /**< \brief IRQ number */
+ int GttBound;
+
+ drm_handle_t ring_map;
+
+} I830Rec;
+
+/*
+ * 12288 is set as the maximum, chosen because it is enough for
+ * 1920x1440@32bpp with a 2048 pixel line pitch with some to spare.
+ */
+#define I830_MAXIMUM_VBIOS_MEM 12288
+#define I830_DEFAULT_VIDEOMEM_2D (MB(32) / 1024)
+#define I830_DEFAULT_VIDEOMEM_3D (MB(64) / 1024)
+
+/* Flags for memory allocation function */
+#define FROM_ANYWHERE 0x00000000
+#define FROM_POOL_ONLY 0x00000001
+#define FROM_NEW_ONLY 0x00000002
+#define FROM_MASK 0x0000000f
+
+#define ALLOCATE_AT_TOP 0x00000010
+#define ALLOCATE_AT_BOTTOM 0x00000020
+#define FORCE_GAPS 0x00000040
+
+#define NEED_PHYSICAL_ADDR 0x00000100
+#define ALIGN_BOTH_ENDS 0x00000200
+#define FORCE_LOW 0x00000400
+
+#define ALLOC_NO_TILING 0x00001000
+#define ALLOC_INITIAL 0x00002000
+
+#define ALLOCATE_DRY_RUN 0x80000000
+
+/* Chipset registers for VIDEO BIOS memory RW access */
+#define _855_DRAM_RW_CONTROL 0x58
+#define _845_DRAM_RW_CONTROL 0x90
+#define DRAM_WRITE 0x33330000
+
+#define KB(x) ((x) * 1024)
+#define MB(x) ((x) * KB(1024))
+
+#define GTT_PAGE_SIZE KB(4)
+#define ROUND_TO(x, y) (((x) + (y) - 1) / (y) * (y))
+#define ROUND_DOWN_TO(x, y) ((x) / (y) * (y))
+#define ROUND_TO_PAGE(x) ROUND_TO((x), GTT_PAGE_SIZE)
+#define ROUND_TO_MB(x) ROUND_TO((x), MB(1))
+#define PRIMARY_RINGBUFFER_SIZE KB(128)
+
+
+/* Ring buffer registers, p277, overview p19
+ */
+#define LP_RING 0x2030
+#define HP_RING 0x2040
+
+#define RING_TAIL 0x00
+#define TAIL_ADDR 0x000FFFF8
+#define I830_TAIL_MASK 0x001FFFF8
+
+#define RING_HEAD 0x04
+#define HEAD_WRAP_COUNT 0xFFE00000
+#define HEAD_WRAP_ONE 0x00200000
+#define HEAD_ADDR 0x001FFFFC
+#define I830_HEAD_MASK 0x001FFFFC
+
+#define RING_START 0x08
+#define START_ADDR 0x03FFFFF8
+#define I830_RING_START_MASK 0xFFFFF000
+
+#define RING_LEN 0x0C
+#define RING_NR_PAGES 0x001FF000
+#define I830_RING_NR_PAGES 0x001FF000
+#define RING_REPORT_MASK 0x00000006
+#define RING_REPORT_64K 0x00000002
+#define RING_REPORT_128K 0x00000004
+#define RING_NO_REPORT 0x00000000
+#define RING_VALID_MASK 0x00000001
+#define RING_VALID 0x00000001
+#define RING_INVALID 0x00000000
+
+
+#include <mmio.h>
+
+# define MMIO_IN8(base, offset) \
+ *(volatile unsigned char *)(((unsigned char*)(base)) + (offset))
+# define MMIO_IN32(base, offset) \
+ read_MMIO_LE32(base, offset)
+# define MMIO_OUT8(base, offset, val) \
+ *(volatile unsigned char *)(((unsigned char*)(base)) + (offset)) = (val)
+# define MMIO_OUT32(base, offset, val) \
+ *(volatile unsigned int *)(void *)(((unsigned char*)(base)) + (offset)) = CPU_TO_LE32(val)
+
+
+ /* Memory mapped register access macros */
+#define INREG8(addr) MMIO_IN8(MMIO, addr)
+#define INREG(addr) MMIO_IN32(MMIO, addr)
+#define OUTREG8(addr, val) MMIO_OUT8(MMIO, addr, val)
+#define OUTREG(addr, val) MMIO_OUT32(MMIO, addr, val)
+
+#define DSPABASE 0x70184
+
+#endif
--- /dev/null
+/**
+ * \file server/intel_dri.c
+ * \brief File to perform the device-specific initialization tasks typically
+ * done in the X server.
+ *
+ * Here they are converted to run in the client (or perhaps a standalone
+ * process), and to work with the frame buffer device rather than the X
+ * server infrastructure.
+ *
+ * Copyright (C) 2006 Dave Airlie (airlied@linux.ie)
+
+ Permission is hereby granted, free of charge, to any person obtaining a
+ copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sub license, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice (including the
+ next paragraph) shall be included in all copies or substantial portions
+ of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR
+ ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include "driver.h"
+#include "drm.h"
+
+#include "intel.h"
+#include "i830_dri.h"
+
+#include "memops.h"
+#include "pciaccess.h"
+
+static size_t drm_page_size;
+#define xf86DrvMsg(...) do {} while(0)
+
+static Bool I830DRIDoMappings(DRIDriverContext *ctx, I830Rec *pI830, drmI830Sarea *sarea);
+
+static int I830DetectMemory(const DRIDriverContext *ctx, I830Rec *pI830)
+{
+ struct pci_device host_bridge;
+ uint32_t gmch_ctrl;
+ int memsize = 0;
+ int range;
+
+ memset(&host_bridge, 0, sizeof(host_bridge));
+
+ pci_device_cfg_read_u32(&host_bridge, &gmch_ctrl, I830_GMCH_CTRL);
+
+ /* We need to reduce the stolen size, by the GTT and the popup.
+ * The GTT varying according the the FbMapSize and the popup is 4KB */
+ range = (ctx->shared.fbSize / (1024*1024)) + 4;
+
+ if (IS_I85X(pI830) || IS_I865G(pI830) || IS_I9XX(pI830)) {
+ switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
+ case I855_GMCH_GMS_STOLEN_1M:
+ memsize = MB(1) - KB(range);
+ break;
+ case I855_GMCH_GMS_STOLEN_4M:
+ memsize = MB(4) - KB(range);
+ break;
+ case I855_GMCH_GMS_STOLEN_8M:
+ memsize = MB(8) - KB(range);
+ break;
+ case I855_GMCH_GMS_STOLEN_16M:
+ memsize = MB(16) - KB(range);
+ break;
+ case I855_GMCH_GMS_STOLEN_32M:
+ memsize = MB(32) - KB(range);
+ break;
+ case I915G_GMCH_GMS_STOLEN_48M:
+ if (IS_I9XX(pI830))
+ memsize = MB(48) - KB(range);
+ break;
+ case I915G_GMCH_GMS_STOLEN_64M:
+ if (IS_I9XX(pI830))
+ memsize = MB(64) - KB(range);
+ break;
+ }
+ } else {
+ switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
+ case I830_GMCH_GMS_STOLEN_512:
+ memsize = KB(512) - KB(range);
+ break;
+ case I830_GMCH_GMS_STOLEN_1024:
+ memsize = MB(1) - KB(range);
+ break;
+ case I830_GMCH_GMS_STOLEN_8192:
+ memsize = MB(8) - KB(range);
+ break;
+ case I830_GMCH_GMS_LOCAL:
+ memsize = 0;
+ xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+ "Local memory found, but won't be used.\n");
+ break;
+ }
+ }
+ if (memsize > 0) {
+ fprintf(stderr,
+ "detected %d kB stolen memory.\n", memsize / 1024);
+ } else {
+ fprintf(stderr,
+ "no video memory detected.\n");
+ }
+ return memsize;
+}
+
+static int AgpInit(const DRIDriverContext *ctx, I830Rec *info)
+{
+ unsigned long mode = 0x4;
+
+ if (drmAgpAcquire(ctx->drmFD) < 0) {
+ fprintf(stderr, "[gart] AGP not available\n");
+ return 0;
+ }
+
+ if (drmAgpEnable(ctx->drmFD, mode) < 0) {
+ fprintf(stderr, "[gart] AGP not enabled\n");
+ drmAgpRelease(ctx->drmFD);
+ return 0;
+ }
+ else
+ fprintf(stderr, "[gart] AGP enabled at %dx\n", ctx->agpmode);
+
+ return 1;
+}
+
+static unsigned long AllocFromAGP(const DRIDriverContext *ctx, I830Rec *pI830, long size, unsigned long alignment, I830MemRange *result)
+{
+ unsigned long start, end;
+ unsigned long newApStart, newApEnd;
+ int ret;
+ if (!result || !size)
+ return 0;
+
+ if (!alignment)
+ alignment = 4;
+
+ start = ROUND_TO(pI830->MemoryAperture.Start, alignment);
+ end = ROUND_TO(start + size, alignment);
+ newApStart = end;
+ newApEnd = pI830->MemoryAperture.End;
+
+ ret=drmAgpAlloc(ctx->drmFD, size, 0, &(result->Physical), (drm_handle_t *)&(result->Key));
+
+ if (ret)
+ {
+ fprintf(stderr,"drmAgpAlloc failed %d\n", ret);
+ return 0;
+ }
+ pI830->allocatedMemory += size;
+ pI830->MemoryAperture.Start = newApStart;
+ pI830->MemoryAperture.End = newApEnd;
+ pI830->MemoryAperture.Size = newApEnd - newApStart;
+ pI830->FreeMemory -= size;
+ result->Start = start;
+ result->End = start + size;
+ result->Size = size;
+ result->Offset = start;
+ result->Alignment = alignment;
+ result->Pool = NULL;
+
+ return size;
+}
+
+static Bool BindAgpRange(const DRIDriverContext *ctx, I830MemRange *mem)
+{
+ if (!mem)
+ return FALSE;
+
+ if (mem->Key == -1)
+ return TRUE;
+
+ return drmAgpBind(ctx->drmFD, mem->Key, mem->Offset);
+}
+
+/* simple memory allocation routines needed */
+/* put ring buffer in low memory */
+/* need to allocate front, back, depth buffers aligned correctly,
+ allocate ring buffer,
+*/
+
+/* */
+static Bool
+I830AllocateMemory(const DRIDriverContext *ctx, I830Rec *pI830)
+{
+ unsigned long size, ret;
+ unsigned long lines, lineSize, align;
+
+ /* allocate ring buffer */
+ memset(pI830->LpRing, 0, sizeof(I830RingBuffer));
+ pI830->LpRing->mem.Key = -1;
+
+ size = PRIMARY_RINGBUFFER_SIZE;
+
+ ret = AllocFromAGP(ctx, pI830, size, 0x1000, &pI830->LpRing->mem);
+
+ if (ret != size)
+ {
+ fprintf(stderr,"unable to allocate ring buffer %ld\n", ret);
+ return FALSE;
+ }
+
+ pI830->LpRing->tail_mask = pI830->LpRing->mem.Size - 1;
+
+
+ /* allocate front buffer */
+ memset(&(pI830->FrontBuffer), 0, sizeof(pI830->FrontBuffer));
+ pI830->FrontBuffer.Key = -1;
+ pI830->FrontBuffer.Pitch = ctx->shared.virtualWidth;
+
+ align = KB(512);
+
+ lineSize = ctx->shared.virtualWidth * ctx->cpp;
+ lines = (ctx->shared.virtualHeight + 15) / 16 * 16;
+ size = lineSize * lines;
+ size = ROUND_TO_PAGE(size);
+
+ ret = AllocFromAGP(ctx, pI830, size, align, &pI830->FrontBuffer);
+ if (ret != size)
+ {
+ fprintf(stderr,"unable to allocate front buffer %ld\n", ret);
+ return FALSE;
+ }
+
+ memset(&(pI830->BackBuffer), 0, sizeof(pI830->BackBuffer));
+ pI830->BackBuffer.Key = -1;
+ pI830->BackBuffer.Pitch = ctx->shared.virtualWidth;
+
+ ret = AllocFromAGP(ctx, pI830, size, align, &pI830->BackBuffer);
+ if (ret != size)
+ {
+ fprintf(stderr,"unable to allocate back buffer %ld\n", ret);
+ return FALSE;
+ }
+
+ memset(&(pI830->DepthBuffer), 0, sizeof(pI830->DepthBuffer));
+ pI830->DepthBuffer.Key = -1;
+ pI830->DepthBuffer.Pitch = ctx->shared.virtualWidth;
+
+ ret = AllocFromAGP(ctx, pI830, size, align, &pI830->DepthBuffer);
+ if (ret != size)
+ {
+ fprintf(stderr,"unable to allocate depth buffer %ld\n", ret);
+ return FALSE;
+ }
+
+ memset(&(pI830->ContextMem), 0, sizeof(pI830->ContextMem));
+ pI830->ContextMem.Key = -1;
+ size = KB(32);
+
+ ret = AllocFromAGP(ctx, pI830, size, align, &pI830->ContextMem);
+ if (ret != size)
+ {
+ fprintf(stderr,"unable to allocate back buffer %ld\n", ret);
+ return FALSE;
+ }
+
+ memset(&(pI830->TexMem), 0, sizeof(pI830->TexMem));
+ pI830->TexMem.Key = -1;
+
+ size = 32768 * 1024;
+ ret = AllocFromAGP(ctx, pI830, size, align, &pI830->TexMem);
+ if (ret != size)
+ {
+ fprintf(stderr,"unable to allocate texture memory %ld\n", ret);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static Bool
+I830BindMemory(const DRIDriverContext *ctx, I830Rec *pI830)
+{
+ if (BindAgpRange(ctx, &pI830->LpRing->mem))
+ return FALSE;
+ if (BindAgpRange(ctx, &pI830->FrontBuffer))
+ return FALSE;
+ if (BindAgpRange(ctx, &pI830->BackBuffer))
+ return FALSE;
+ if (BindAgpRange(ctx, &pI830->DepthBuffer))
+ return FALSE;
+ if (BindAgpRange(ctx, &pI830->ContextMem))
+ return FALSE;
+ if (BindAgpRange(ctx, &pI830->TexMem))
+ return FALSE;
+
+ return TRUE;
+}
+
+static Bool
+I830CleanupDma(const DRIDriverContext *ctx)
+{
+ drmI830Init info;
+
+ memset(&info, 0, sizeof(drmI830Init));
+ info.func = I830_CLEANUP_DMA;
+
+ if (drmCommandWrite(ctx->drmFD, DRM_I830_INIT,
+ &info, sizeof(drmI830Init))) {
+ xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "I830 Dma Cleanup Failed\n");
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static Bool
+I830InitDma(const DRIDriverContext *ctx, I830Rec *pI830)
+{
+ I830RingBuffer *ring = pI830->LpRing;
+ drmI830Init info;
+
+ memset(&info, 0, sizeof(drmI830Init));
+ info.func = I830_INIT_DMA;
+
+ info.ring_start = ring->mem.Start + pI830->LinearAddr;
+ info.ring_end = ring->mem.End + pI830->LinearAddr;
+ info.ring_size = ring->mem.Size;
+
+ info.mmio_offset = (unsigned int)ctx->MMIOStart;
+
+ info.sarea_priv_offset = sizeof(drm_sarea_t);
+
+ info.front_offset = pI830->FrontBuffer.Start;
+ info.back_offset = pI830->BackBuffer.Start;
+ info.depth_offset = pI830->DepthBuffer.Start;
+ info.w = ctx->shared.virtualWidth;
+ info.h = ctx->shared.virtualHeight;
+ info.pitch = ctx->shared.virtualWidth;
+ info.back_pitch = pI830->BackBuffer.Pitch;
+ info.depth_pitch = pI830->DepthBuffer.Pitch;
+ info.cpp = pI830->cpp;
+
+ if (drmCommandWrite(ctx->drmFD, DRM_I830_INIT,
+ &info, sizeof(drmI830Init))) {
+ xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+ "I830 Dma Initialization Failed\n");
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static int I830CheckDRMVersion( const DRIDriverContext *ctx,
+ I830Rec *pI830 )
+{
+ drmVersionPtr version;
+
+ version = drmGetVersion(ctx->drmFD);
+
+ if (version) {
+ int req_minor, req_patch;
+
+ req_minor = 4;
+ req_patch = 0;
+
+ if (version->version_major != 1 ||
+ version->version_minor < req_minor ||
+ (version->version_minor == req_minor &&
+ version->version_patchlevel < req_patch)) {
+ /* Incompatible drm version */
+ fprintf(stderr,
+ "[dri] I830DRIScreenInit failed because of a version "
+ "mismatch.\n"
+ "[dri] i915.o kernel module version is %d.%d.%d "
+ "but version 1.%d.%d or newer is needed.\n"
+ "[dri] Disabling DRI.\n",
+ version->version_major,
+ version->version_minor,
+ version->version_patchlevel,
+ req_minor,
+ req_patch);
+ drmFreeVersion(version);
+ return 0;
+ }
+
+ pI830->drmMinor = version->version_minor;
+ drmFreeVersion(version);
+ }
+ return 1;
+}
+
+static void
+I830SetRingRegs(const DRIDriverContext *ctx, I830Rec *pI830)
+{
+ unsigned int itemp;
+ unsigned char *MMIO = ctx->MMIOAddress;
+
+ OUTREG(LP_RING + RING_LEN, 0);
+ OUTREG(LP_RING + RING_TAIL, 0);
+ OUTREG(LP_RING + RING_HEAD, 0);
+
+ if ((long)(pI830->LpRing->mem.Start & I830_RING_START_MASK) !=
+ pI830->LpRing->mem.Start) {
+ xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+ "I830SetRingRegs: Ring buffer start (%lx) violates its "
+ "mask (%x)\n", pI830->LpRing->mem.Start, I830_RING_START_MASK);
+ }
+ /* Don't care about the old value. Reserved bits must be zero anyway. */
+ itemp = pI830->LpRing->mem.Start & I830_RING_START_MASK;
+ OUTREG(LP_RING + RING_START, itemp);
+
+ if (((pI830->LpRing->mem.Size - 4096) & I830_RING_NR_PAGES) !=
+ pI830->LpRing->mem.Size - 4096) {
+ xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+ "I830SetRingRegs: Ring buffer size - 4096 (%lx) violates its "
+ "mask (%x)\n", pI830->LpRing->mem.Size - 4096,
+ I830_RING_NR_PAGES);
+ }
+ /* Don't care about the old value. Reserved bits must be zero anyway. */
+ itemp = (pI830->LpRing->mem.Size - 4096) & I830_RING_NR_PAGES;
+ itemp |= (RING_NO_REPORT | RING_VALID);
+ OUTREG(LP_RING + RING_LEN, itemp);
+
+ pI830->LpRing->head = INREG(LP_RING + RING_HEAD) & I830_HEAD_MASK;
+ pI830->LpRing->tail = INREG(LP_RING + RING_TAIL);
+ pI830->LpRing->space = pI830->LpRing->head - (pI830->LpRing->tail + 8);
+ if (pI830->LpRing->space < 0)
+ pI830->LpRing->space += pI830->LpRing->mem.Size;
+
+ /* RESET THE DISPLAY PIPE TO POINT TO THE FRONTBUFFER - hacky
+ hacky hacky */
+ OUTREG(DSPABASE, pI830->FrontBuffer.Start + pI830->LinearAddr);
+
+}
+
+static Bool
+I830SetParam(const DRIDriverContext *ctx, int param, int value)
+{
+ drmI830SetParam sp;
+
+ memset(&sp, 0, sizeof(sp));
+ sp.param = param;
+ sp.value = value;
+
+ if (drmCommandWrite(ctx->drmFD, DRM_I830_SETPARAM, &sp, sizeof(sp))) {
+ xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "I830 SetParam Failed\n");
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static Bool
+I830DRIMapScreenRegions(DRIDriverContext *ctx, I830Rec *pI830, drmI830Sarea *sarea)
+{
+ fprintf(stderr,
+ "[drm] Mapping front buffer\n");
+
+ if (drmAddMap(ctx->drmFD,
+ (drm_handle_t)(sarea->front_offset + pI830->LinearAddr),
+ sarea->front_size,
+ DRM_FRAME_BUFFER, /*DRM_AGP,*/
+ 0,
+ &sarea->front_handle) < 0) {
+ fprintf(stderr,
+ "[drm] drmAddMap(front_handle) failed. Disabling DRI\n");
+ return FALSE;
+ }
+ ctx->shared.hFrameBuffer = sarea->front_handle;
+ ctx->shared.fbSize = sarea->front_size;
+ fprintf(stderr, "[drm] Front Buffer = 0x%08x\n",
+ sarea->front_handle);
+
+ if (drmAddMap(ctx->drmFD,
+ (drm_handle_t)(sarea->back_offset),
+ sarea->back_size, DRM_AGP, 0,
+ &sarea->back_handle) < 0) {
+ xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+ "[drm] drmAddMap(back_handle) failed. Disabling DRI\n");
+ return FALSE;
+ }
+ fprintf(stderr, "[drm] Back Buffer = 0x%08x\n",
+ sarea->back_handle);
+
+ if (drmAddMap(ctx->drmFD,
+ (drm_handle_t)sarea->depth_offset,
+ sarea->depth_size, DRM_AGP, 0,
+ &sarea->depth_handle) < 0) {
+ xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+ "[drm] drmAddMap(depth_handle) failed. Disabling DRI\n");
+ return FALSE;
+ }
+ fprintf(stderr, "[drm] Depth Buffer = 0x%08x\n",
+ sarea->depth_handle);
+
+ if (drmAddMap(ctx->drmFD,
+ (drm_handle_t)sarea->tex_offset,
+ sarea->tex_size, DRM_AGP, 0,
+ &sarea->tex_handle) < 0) {
+ xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+ "[drm] drmAddMap(tex_handle) failed. Disabling DRI\n");
+ return FALSE;
+ }
+ fprintf(stderr, "[drm] textures = 0x%08x\n",
+ sarea->tex_handle);
+
+ return TRUE;
+}
+
+
+static void
+I830DRIUnmapScreenRegions(const DRIDriverContext *ctx, I830Rec *pI830, drmI830Sarea *sarea)
+{
+#if 1
+ if (sarea->front_handle) {
+ drmRmMap(ctx->drmFD, sarea->front_handle);
+ sarea->front_handle = 0;
+ }
+#endif
+ if (sarea->back_handle) {
+ drmRmMap(ctx->drmFD, sarea->back_handle);
+ sarea->back_handle = 0;
+ }
+ if (sarea->depth_handle) {
+ drmRmMap(ctx->drmFD, sarea->depth_handle);
+ sarea->depth_handle = 0;
+ }
+ if (sarea->tex_handle) {
+ drmRmMap(ctx->drmFD, sarea->tex_handle);
+ sarea->tex_handle = 0;
+ }
+}
+
+static void
+I830InitTextureHeap(const DRIDriverContext *ctx, I830Rec *pI830, drmI830Sarea *sarea)
+{
+ /* Start up the simple memory manager for agp space */
+ drmI830MemInitHeap drmHeap;
+ drmHeap.region = I830_MEM_REGION_AGP;
+ drmHeap.start = 0;
+ drmHeap.size = sarea->tex_size;
+
+ if (drmCommandWrite(ctx->drmFD, DRM_I830_INIT_HEAP,
+ &drmHeap, sizeof(drmHeap))) {
+ xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+ "[drm] Failed to initialized agp heap manager\n");
+ } else {
+ xf86DrvMsg(pScrn->scrnIndex, X_INFO,
+ "[drm] Initialized kernel agp heap manager, %d\n",
+ sarea->tex_size);
+
+ I830SetParam(ctx, I830_SETPARAM_TEX_LRU_LOG_GRANULARITY,
+ sarea->log_tex_granularity);
+ }
+}
+
+static Bool
+I830DRIDoMappings(DRIDriverContext *ctx, I830Rec *pI830, drmI830Sarea *sarea)
+{
+ if (drmAddMap(ctx->drmFD,
+ (drm_handle_t)pI830->LpRing->mem.Start,
+ pI830->LpRing->mem.Size, DRM_AGP, 0,
+ &pI830->ring_map) < 0) {
+ fprintf(stderr,
+ "[drm] drmAddMap(ring_map) failed. Disabling DRI\n");
+ return FALSE;
+ }
+ fprintf(stderr, "[drm] ring buffer = 0x%08x\n",
+ pI830->ring_map);
+
+ if (I830InitDma(ctx, pI830) == FALSE) {
+ return FALSE;
+ }
+
+ /* init to zero to be safe */
+
+ I830DRIMapScreenRegions(ctx, pI830, sarea);
+ I830InitTextureHeap(ctx, pI830, sarea);
+
+ if (ctx->pciDevice != PCI_CHIP_845_G &&
+ ctx->pciDevice != PCI_CHIP_I830_M) {
+ I830SetParam(ctx, I830_SETPARAM_USE_MI_BATCHBUFFER_START, 1 );
+ }
+
+ /* Okay now initialize the dma engine */
+ {
+ pI830->irq = drmGetInterruptFromBusID(ctx->drmFD,
+ ctx->pciBus,
+ ctx->pciDevice,
+ ctx->pciFunc);
+
+ if (drmCtlInstHandler(ctx->drmFD, pI830->irq)) {
+ xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+ "[drm] failure adding irq handler\n");
+ pI830->irq = 0;
+ return FALSE;
+ }
+ else
+ xf86DrvMsg(pScrn->scrnIndex, X_INFO,
+ "[drm] dma control initialized, using IRQ %d\n",
+ pI830DRI->irq);
+ }
+
+ xf86DrvMsg(pScrn->scrnIndex, X_INFO, "[dri] visual configs initialized\n");
+
+ return TRUE;
+}
+
+static Bool
+I830ClearScreen(DRIDriverContext *ctx, I830Rec *pI830, drmI830Sarea *sarea)
+{
+ /* need to drmMap front and back buffers and zero them */
+ drmAddressPtr map_addr;
+ int ret;
+
+ ret = drmMap(ctx->drmFD,
+ sarea->front_handle,
+ sarea->front_size,
+ map_addr);
+
+ if (ret)
+ {
+ fprintf(stderr, "Unable to map front buffer\n");
+ return FALSE;
+ }
+
+ drimemsetio((char *)map_addr,
+ 0,
+ sarea->front_size);
+ drmUnmap(map_addr, sarea->front_size);
+
+
+ ret = drmMap(ctx->drmFD,
+ sarea->back_handle,
+ sarea->back_size,
+ map_addr);
+
+ if (ret)
+ {
+ fprintf(stderr, "Unable to map back buffer\n");
+ return FALSE;
+ }
+
+ drimemsetio((char *)map_addr,
+ 0,
+ sarea->back_size);
+ drmUnmap(map_addr, sarea->back_size);
+
+ return TRUE;
+}
+
+static Bool
+I830ScreenInit(DRIDriverContext *ctx, I830Rec *pI830)
+
+{
+ I830DRIPtr pI830DRI;
+ drmI830Sarea *pSAREAPriv;
+ int err;
+
+
+ drm_page_size = getpagesize();
+
+ pI830->registerSize = ctx->MMIOSize;
+ /* This is a hack for now. We have to have more than a 4k page here
+ * because of the size of the state. However, the state should be
+ * in a per-context mapping. This will be added in the Mesa 3.5 port
+ * of the I830 driver.
+ */
+ ctx->shared.SAREASize = SAREA_MAX;
+
+ /* Note that drmOpen will try to load the kernel module, if needed. */
+ ctx->drmFD = drmOpen("i915", NULL );
+ if (ctx->drmFD < 0) {
+ fprintf(stderr, "[drm] drmOpen failed\n");
+ return 0;
+ }
+
+ if ((err = drmSetBusid(ctx->drmFD, ctx->pciBusID)) < 0) {
+ fprintf(stderr, "[drm] drmSetBusid failed (%d, %s), %s\n",
+ ctx->drmFD, ctx->pciBusID, strerror(-err));
+ return 0;
+ }
+
+ if (drmAddMap( ctx->drmFD,
+ 0,
+ ctx->shared.SAREASize,
+ DRM_SHM,
+ DRM_CONTAINS_LOCK,
+ &ctx->shared.hSAREA) < 0)
+ {
+ fprintf(stderr, "[drm] drmAddMap failed\n");
+ return 0;
+ }
+
+ fprintf(stderr, "[drm] added %d byte SAREA at 0x%08x\n",
+ ctx->shared.SAREASize, ctx->shared.hSAREA);
+
+ if (drmMap( ctx->drmFD,
+ ctx->shared.hSAREA,
+ ctx->shared.SAREASize,
+ (drmAddressPtr)(&ctx->pSAREA)) < 0)
+ {
+ fprintf(stderr, "[drm] drmMap failed\n");
+ return 0;
+
+ }
+
+ memset(ctx->pSAREA, 0, ctx->shared.SAREASize);
+ fprintf(stderr, "[drm] mapped SAREA 0x%08x to %p, size %d\n",
+ ctx->shared.hSAREA, ctx->pSAREA, ctx->shared.SAREASize);
+
+
+ if (drmAddMap(ctx->drmFD,
+ ctx->MMIOStart,
+ ctx->MMIOSize,
+ DRM_REGISTERS,
+ DRM_READ_ONLY,
+ &pI830->registerHandle) < 0) {
+ fprintf(stderr, "[drm] drmAddMap mmio failed\n");
+ return 0;
+ }
+ fprintf(stderr,
+ "[drm] register handle = 0x%08x\n", pI830->registerHandle);
+
+
+ if (!I830CheckDRMVersion(ctx, pI830)) {
+ return FALSE;
+ }
+
+ /* Create a 'server' context so we can grab the lock for
+ * initialization ioctls.
+ */
+ if ((err = drmCreateContext(ctx->drmFD, &ctx->serverContext)) != 0) {
+ fprintf(stderr, "%s: drmCreateContext failed %d\n", __FUNCTION__, err);
+ return 0;
+ }
+
+ DRM_LOCK(ctx->drmFD, ctx->pSAREA, ctx->serverContext, 0);
+
+ /* Initialize the SAREA private data structure */
+ pSAREAPriv = (drmI830Sarea *)(((char*)ctx->pSAREA) +
+ sizeof(drm_sarea_t));
+ memset(pSAREAPriv, 0, sizeof(*pSAREAPriv));
+
+ pI830->StolenMemory.Size = I830DetectMemory(ctx, pI830);
+ pI830->StolenMemory.Start = 0;
+ pI830->StolenMemory.End = pI830->StolenMemory.Size;
+
+ pI830->MemoryAperture.Start = pI830->StolenMemory.End;
+ pI830->MemoryAperture.End = KB(40000);
+ pI830->MemoryAperture.Size = pI830->MemoryAperture.End - pI830->MemoryAperture.Start;
+
+ if (!AgpInit(ctx, pI830))
+ return FALSE;
+
+ if (I830AllocateMemory(ctx, pI830) == FALSE)
+ {
+ return FALSE;
+ }
+
+ if (I830BindMemory(ctx, pI830) == FALSE)
+ {
+ return FALSE;
+ }
+
+ pSAREAPriv->front_offset = pI830->FrontBuffer.Start;
+ pSAREAPriv->front_size = pI830->FrontBuffer.Size;
+ pSAREAPriv->width = ctx->shared.virtualWidth;
+ pSAREAPriv->height = ctx->shared.virtualHeight;
+ pSAREAPriv->pitch = ctx->shared.virtualWidth;
+ pSAREAPriv->virtualX = ctx->shared.virtualWidth;
+ pSAREAPriv->virtualY = ctx->shared.virtualHeight;
+ pSAREAPriv->back_offset = pI830->BackBuffer.Start;
+ pSAREAPriv->back_size = pI830->BackBuffer.Size;
+ pSAREAPriv->depth_offset = pI830->DepthBuffer.Start;
+ pSAREAPriv->depth_size = pI830->DepthBuffer.Size;
+ pSAREAPriv->tex_offset = pI830->TexMem.Start;
+ pSAREAPriv->tex_size = pI830->TexMem.Size;
+ pSAREAPriv->log_tex_granularity = pI830->TexGranularity;
+
+ ctx->driverClientMsg = malloc(sizeof(I830DRIRec));
+ ctx->driverClientMsgSize = sizeof(I830DRIRec);
+ pI830DRI = (I830DRIPtr)ctx->driverClientMsg;
+ pI830DRI->deviceID = pI830->Chipset;
+ pI830DRI->regsSize = I830_REG_SIZE;
+ pI830DRI->width = ctx->shared.virtualWidth;
+ pI830DRI->height = ctx->shared.virtualHeight;
+ pI830DRI->mem = ctx->shared.fbSize;
+ pI830DRI->cpp = ctx->cpp;
+ pI830DRI->backOffset = pI830->BackBuffer.Start;
+ pI830DRI->backPitch = pI830->BackBuffer.Pitch;
+
+ pI830DRI->depthOffset = pI830->DepthBuffer.Start;
+ pI830DRI->depthPitch = pI830->DepthBuffer.Pitch;
+
+ pI830DRI->fbOffset = pI830->FrontBuffer.Start;
+ pI830DRI->fbStride = pI830->FrontBuffer.Pitch;
+
+ pI830DRI->bitsPerPixel = ctx->bpp;
+ pI830DRI->sarea_priv_offset = sizeof(drm_sarea_t);
+
+ err = I830DRIDoMappings(ctx, pI830, pSAREAPriv);
+ if (err == FALSE)
+ return FALSE;
+
+ I830SetRingRegs(ctx, pI830);
+
+ /* Quick hack to clear the front & back buffers. Could also use
+ * the clear ioctl to do this, but would need to setup hw state
+ * first.
+ */
+ I830ClearScreen(ctx, pI830, pSAREAPriv);
+
+ return TRUE;
+}
+
+
+/**
+ * \brief Validate the fbdev mode.
+ *
+ * \param ctx display handle.
+ *
+ * \return one on success, or zero on failure.
+ *
+ * Saves some registers and returns 1.
+ *
+ * \sa radeonValidateMode().
+ */
+static int i830ValidateMode( const DRIDriverContext *ctx )
+{
+ return 1;
+}
+
+/**
+ * \brief Examine mode returned by fbdev.
+ *
+ * \param ctx display handle.
+ *
+ * \return one on success, or zero on failure.
+ *
+ * Restores registers that fbdev has clobbered and returns 1.
+ *
+ * \sa i810ValidateMode().
+ */
+static int i830PostValidateMode( const DRIDriverContext *ctx )
+{
+ I830Rec *pI830 = ctx->driverPrivate;
+
+ I830SetRingRegs(ctx, pI830);
+ return 1;
+}
+
+
+/**
+ * \brief Initialize the framebuffer device mode
+ *
+ * \param ctx display handle.
+ *
+ * \return one on success, or zero on failure.
+ *
+ * Fills in \p info with some default values and some information from \p ctx
+ * and then calls I810ScreenInit() for the screen initialization.
+ *
+ * Before exiting clears the framebuffer memory accessing it directly.
+ */
+static int i830InitFBDev( DRIDriverContext *ctx )
+{
+ I830Rec *pI830 = calloc(1, sizeof(I830Rec));
+
+ {
+ int dummy = ctx->shared.virtualWidth;
+
+ switch (ctx->bpp / 8) {
+ case 1: dummy = (ctx->shared.virtualWidth + 127) & ~127; break;
+ case 2: dummy = (ctx->shared.virtualWidth + 31) & ~31; break;
+ case 3:
+ case 4: dummy = (ctx->shared.virtualWidth + 15) & ~15; break;
+ }
+
+ ctx->shared.virtualWidth = dummy;
+ }
+
+ ctx->driverPrivate = (void *)pI830;
+
+ pI830->LpRing = calloc(1, sizeof(I830RingBuffer));
+ pI830->Chipset = ctx->chipset;
+ pI830->LinearAddr = ctx->FBStart;
+
+ if (!I830ScreenInit( ctx, pI830 ))
+ return 0;
+
+
+ return 1;
+}
+
+
+/**
+ * \brief The screen is being closed, so clean up any state and free any
+ * resources used by the DRI.
+ *
+ * \param ctx display handle.
+ *
+ * Unmaps the SAREA, closes the DRM device file descriptor and frees the driver
+ * private data.
+ */
+static void i830HaltFBDev( DRIDriverContext *ctx )
+{
+ drmI830Sarea *pSAREAPriv;
+ I830Rec *pI830 = ctx->driverPrivate;
+
+ if (pI830->irq) {
+ drmCtlUninstHandler(ctx->drmFD);
+ pI830->irq = 0; }
+
+ I830CleanupDma(ctx);
+
+ pSAREAPriv = (drmI830Sarea *)(((char*)ctx->pSAREA) +
+ sizeof(drm_sarea_t));
+
+ I830DRIUnmapScreenRegions(ctx, pI830, pSAREAPriv);
+ drmUnmap( ctx->pSAREA, ctx->shared.SAREASize );
+ drmClose(ctx->drmFD);
+
+ if (ctx->driverPrivate) {
+ free(ctx->driverPrivate);
+ ctx->driverPrivate = 0;
+ }
+}
+
+
+extern void i810NotifyFocus( int );
+
+/**
+ * \brief Exported driver interface for Mini GLX.
+ *
+ * \sa DRIDriverRec.
+ */
+const struct DRIDriverRec __driDriver = {
+ i830ValidateMode,
+ i830PostValidateMode,
+ i830InitFBDev,
+ i830HaltFBDev,
+ NULL,//I830EngineShutdown,
+ NULL, //I830EngineRestore,
+#ifndef _EMBEDDED
+ 0,
+#else
+ i810NotifyFocus,
+#endif
+};
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