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Diffstat (limited to 'hw/xfree86/os-support/linux/lnx_agp.c')
-rw-r--r--hw/xfree86/os-support/linux/lnx_agp.c461
1 files changed, 229 insertions, 232 deletions
diff --git a/hw/xfree86/os-support/linux/lnx_agp.c b/hw/xfree86/os-support/linux/lnx_agp.c
index a5f041162..e1fa3f8a7 100644
--- a/hw/xfree86/os-support/linux/lnx_agp.c
+++ b/hw/xfree86/os-support/linux/lnx_agp.c
@@ -7,7 +7,6 @@
* Copyright © 2001 The XFree86 Project, Inc.
*/
-
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
@@ -39,6 +38,7 @@
static int gartFd = -1;
static int acquiredScreen = -1;
static Bool initDone = FALSE;
+
/*
* Close /dev/agpgart. This frees all associated memory allocated during
* this server generation.
@@ -46,13 +46,13 @@ static Bool initDone = FALSE;
Bool
xf86GARTCloseScreen(int screenNum)
{
- if(gartFd != -1) {
- close(gartFd);
- acquiredScreen = -1;
- gartFd = -1;
- initDone = FALSE;
- }
- return TRUE;
+ if (gartFd != -1) {
+ close(gartFd);
+ acquiredScreen = -1;
+ gartFd = -1;
+ initDone = FALSE;
+ }
+ return TRUE;
}
/*
@@ -61,103 +61,103 @@ xf86GARTCloseScreen(int screenNum)
static Bool
GARTInit(int screenNum)
{
- struct _agp_info agpinf;
-
- if (initDone)
- return gartFd != -1;
-
- initDone = TRUE;
-
- if (gartFd == -1)
- gartFd = open(AGP_DEVICE, O_RDWR, 0);
- else
- return FALSE;
-
- if (gartFd == -1) {
- xf86DrvMsg(screenNum, X_ERROR,
- "GARTInit: Unable to open " AGP_DEVICE " (%s)\n",
- strerror(errno));
- return FALSE;
- }
-
- xf86AcquireGART(-1);
- /* Check the kernel driver version. */
- if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
- xf86DrvMsg(screenNum, X_ERROR,
- "GARTInit: AGPIOC_INFO failed (%s)\n", strerror(errno));
- close(gartFd);
- gartFd = -1;
- return FALSE;
- }
- xf86ReleaseGART(-1);
+ struct _agp_info agpinf;
+
+ if (initDone)
+ return gartFd != -1;
+
+ initDone = TRUE;
+
+ if (gartFd == -1)
+ gartFd = open(AGP_DEVICE, O_RDWR, 0);
+ else
+ return FALSE;
+
+ if (gartFd == -1) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "GARTInit: Unable to open " AGP_DEVICE " (%s)\n",
+ strerror(errno));
+ return FALSE;
+ }
+
+ xf86AcquireGART(-1);
+ /* Check the kernel driver version. */
+ if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "GARTInit: AGPIOC_INFO failed (%s)\n", strerror(errno));
+ close(gartFd);
+ gartFd = -1;
+ return FALSE;
+ }
+ xf86ReleaseGART(-1);
#if defined(linux)
- /* Per Dave Jones, every effort will be made to keep the
- * agpgart interface backwards compatible, so allow all
- * future versions.
- */
- if (
+ /* Per Dave Jones, every effort will be made to keep the
+ * agpgart interface backwards compatible, so allow all
+ * future versions.
+ */
+ if (
#if (AGPGART_MAJOR_VERSION > 0) /* quiet compiler */
- agpinf.version.major < AGPGART_MAJOR_VERSION ||
+ agpinf.version.major < AGPGART_MAJOR_VERSION ||
#endif
- (agpinf.version.major == AGPGART_MAJOR_VERSION &&
- agpinf.version.minor < AGPGART_MINOR_VERSION)) {
- xf86DrvMsg(screenNum, X_ERROR,
- "GARTInit: Kernel agpgart driver version is not current"
- " (%d.%d vs %d.%d)\n",
- agpinf.version.major, agpinf.version.minor,
- AGPGART_MAJOR_VERSION, AGPGART_MINOR_VERSION);
- close(gartFd);
- gartFd = -1;
- return FALSE;
- }
+ (agpinf.version.major == AGPGART_MAJOR_VERSION &&
+ agpinf.version.minor < AGPGART_MINOR_VERSION)) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "GARTInit: Kernel agpgart driver version is not current"
+ " (%d.%d vs %d.%d)\n",
+ agpinf.version.major, agpinf.version.minor,
+ AGPGART_MAJOR_VERSION, AGPGART_MINOR_VERSION);
+ close(gartFd);
+ gartFd = -1;
+ return FALSE;
+ }
#endif
-
- return TRUE;
+
+ return TRUE;
}
Bool
xf86AgpGARTSupported(void)
{
- return GARTInit(-1);
+ return GARTInit(-1);
}
AgpInfoPtr
xf86GetAGPInfo(int screenNum)
{
- struct _agp_info agpinf;
- AgpInfoPtr info;
-
- if (!GARTInit(screenNum))
- return NULL;
-
-
- if ((info = calloc(sizeof(AgpInfo), 1)) == NULL) {
- xf86DrvMsg(screenNum, X_ERROR,
- "xf86GetAGPInfo: Failed to allocate AgpInfo\n");
- return NULL;
- }
-
- memset((char*)&agpinf, 0, sizeof(agpinf));
-
- if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
- xf86DrvMsg(screenNum, X_ERROR,
- "xf86GetAGPInfo: AGPIOC_INFO failed (%s)\n",
- strerror(errno));
- return NULL;
- }
-
- info->bridgeId = agpinf.bridge_id;
- info->agpMode = agpinf.agp_mode;
- info->base = agpinf.aper_base;
- info->size = agpinf.aper_size;
- info->totalPages = agpinf.pg_total;
- info->systemPages = agpinf.pg_system;
- info->usedPages = agpinf.pg_used;
-
- xf86DrvMsg(screenNum, X_INFO, "Kernel reported %zu total, %zu used\n", agpinf.pg_total, agpinf.pg_used);
-
- return info;
+ struct _agp_info agpinf;
+ AgpInfoPtr info;
+
+ if (!GARTInit(screenNum))
+ return NULL;
+
+ if ((info = calloc(sizeof(AgpInfo), 1)) == NULL) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "xf86GetAGPInfo: Failed to allocate AgpInfo\n");
+ return NULL;
+ }
+
+ memset((char *) &agpinf, 0, sizeof(agpinf));
+
+ if (ioctl(gartFd, AGPIOC_INFO, &agpinf) != 0) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "xf86GetAGPInfo: AGPIOC_INFO failed (%s)\n",
+ strerror(errno));
+ return NULL;
+ }
+
+ info->bridgeId = agpinf.bridge_id;
+ info->agpMode = agpinf.agp_mode;
+ info->base = agpinf.aper_base;
+ info->size = agpinf.aper_size;
+ info->totalPages = agpinf.pg_total;
+ info->systemPages = agpinf.pg_system;
+ info->usedPages = agpinf.pg_used;
+
+ xf86DrvMsg(screenNum, X_INFO, "Kernel reported %zu total, %zu used\n",
+ agpinf.pg_total, agpinf.pg_used);
+
+ return info;
}
/*
@@ -168,207 +168,204 @@ xf86GetAGPInfo(int screenNum)
Bool
xf86AcquireGART(int screenNum)
{
- if (screenNum != -1 && !GARTInit(screenNum))
- return FALSE;
-
- if (screenNum == -1 || acquiredScreen != screenNum) {
- if (ioctl(gartFd, AGPIOC_ACQUIRE, 0) != 0) {
- xf86DrvMsg(screenNum, X_WARNING,
- "xf86AcquireGART: AGPIOC_ACQUIRE failed (%s)\n",
- strerror(errno));
- return FALSE;
- }
- acquiredScreen = screenNum;
- }
- return TRUE;
+ if (screenNum != -1 && !GARTInit(screenNum))
+ return FALSE;
+
+ if (screenNum == -1 || acquiredScreen != screenNum) {
+ if (ioctl(gartFd, AGPIOC_ACQUIRE, 0) != 0) {
+ xf86DrvMsg(screenNum, X_WARNING,
+ "xf86AcquireGART: AGPIOC_ACQUIRE failed (%s)\n",
+ strerror(errno));
+ return FALSE;
+ }
+ acquiredScreen = screenNum;
+ }
+ return TRUE;
}
Bool
xf86ReleaseGART(int screenNum)
{
- if (screenNum != -1 && !GARTInit(screenNum))
- return FALSE;
-
- if (acquiredScreen == screenNum) {
- /*
- * The FreeBSD agp driver removes allocations on release.
- * The Linux driver doesn't. xf86ReleaseGART() is expected
- * to give up access to the GART, but not to remove any
- * allocations.
- */
+ if (screenNum != -1 && !GARTInit(screenNum))
+ return FALSE;
+
+ if (acquiredScreen == screenNum) {
+ /*
+ * The FreeBSD agp driver removes allocations on release.
+ * The Linux driver doesn't. xf86ReleaseGART() is expected
+ * to give up access to the GART, but not to remove any
+ * allocations.
+ */
#if !defined(linux)
- if (screenNum == -1)
+ if (screenNum == -1)
#endif
- {
- if (ioctl(gartFd, AGPIOC_RELEASE, 0) != 0) {
- xf86DrvMsg(screenNum, X_WARNING,
- "xf86ReleaseGART: AGPIOC_RELEASE failed (%s)\n",
- strerror(errno));
- return FALSE;
- }
- acquiredScreen = -1;
- }
- return TRUE;
- }
- return FALSE;
+ {
+ if (ioctl(gartFd, AGPIOC_RELEASE, 0) != 0) {
+ xf86DrvMsg(screenNum, X_WARNING,
+ "xf86ReleaseGART: AGPIOC_RELEASE failed (%s)\n",
+ strerror(errno));
+ return FALSE;
+ }
+ acquiredScreen = -1;
+ }
+ return TRUE;
+ }
+ return FALSE;
}
int
xf86AllocateGARTMemory(int screenNum, unsigned long size, int type,
- unsigned long *physical)
+ unsigned long *physical)
{
- struct _agp_allocate alloc;
- int pages;
+ struct _agp_allocate alloc;
+ int pages;
- /*
- * Allocates "size" bytes of GART memory (rounds up to the next
- * page multiple) or type "type". A handle (key) for the allocated
- * memory is returned. On error, the return value is -1.
- */
+ /*
+ * Allocates "size" bytes of GART memory (rounds up to the next
+ * page multiple) or type "type". A handle (key) for the allocated
+ * memory is returned. On error, the return value is -1.
+ */
- if (!GARTInit(screenNum) || acquiredScreen != screenNum)
- return -1;
+ if (!GARTInit(screenNum) || acquiredScreen != screenNum)
+ return -1;
- pages = (size / AGP_PAGE_SIZE);
- if (size % AGP_PAGE_SIZE != 0)
- pages++;
+ pages = (size / AGP_PAGE_SIZE);
+ if (size % AGP_PAGE_SIZE != 0)
+ pages++;
- /* XXX check for pages == 0? */
+ /* XXX check for pages == 0? */
- alloc.pg_count = pages;
- alloc.type = type;
+ alloc.pg_count = pages;
+ alloc.type = type;
- if (ioctl(gartFd, AGPIOC_ALLOCATE, &alloc) != 0) {
- xf86DrvMsg(screenNum, X_WARNING, "xf86AllocateGARTMemory: "
- "allocation of %d pages failed\n\t(%s)\n", pages,
- strerror(errno));
- return -1;
- }
+ if (ioctl(gartFd, AGPIOC_ALLOCATE, &alloc) != 0) {
+ xf86DrvMsg(screenNum, X_WARNING, "xf86AllocateGARTMemory: "
+ "allocation of %d pages failed\n\t(%s)\n", pages,
+ strerror(errno));
+ return -1;
+ }
- if (physical)
- *physical = alloc.physical;
+ if (physical)
+ *physical = alloc.physical;
- return alloc.key;
+ return alloc.key;
}
Bool
xf86DeallocateGARTMemory(int screenNum, int key)
{
- if (!GARTInit(screenNum) || acquiredScreen != screenNum)
- return FALSE;
+ if (!GARTInit(screenNum) || acquiredScreen != screenNum)
+ return FALSE;
- if (acquiredScreen != screenNum) {
- xf86DrvMsg(screenNum, X_ERROR,
+ if (acquiredScreen != screenNum) {
+ xf86DrvMsg(screenNum, X_ERROR,
"xf86UnbindGARTMemory: AGP not acquired by this screen\n");
- return FALSE;
- }
+ return FALSE;
+ }
#ifdef __linux__
- if (ioctl(gartFd, AGPIOC_DEALLOCATE, (int *)(uintptr_t)key) != 0) {
+ if (ioctl(gartFd, AGPIOC_DEALLOCATE, (int *) (uintptr_t) key) != 0) {
#else
- if (ioctl(gartFd, AGPIOC_DEALLOCATE, &key) != 0) {
+ if (ioctl(gartFd, AGPIOC_DEALLOCATE, &key) != 0) {
#endif
- xf86DrvMsg(screenNum, X_WARNING,"xf86DeAllocateGARTMemory: "
+ xf86DrvMsg(screenNum, X_WARNING, "xf86DeAllocateGARTMemory: "
"deallocation gart memory with key %d failed\n\t(%s)\n",
key, strerror(errno));
- return FALSE;
- }
+ return FALSE;
+ }
- return TRUE;
+ return TRUE;
}
/* Bind GART memory with "key" at "offset" */
Bool
xf86BindGARTMemory(int screenNum, int key, unsigned long offset)
{
- struct _agp_bind bind;
- int pageOffset;
-
- if (!GARTInit(screenNum) || acquiredScreen != screenNum)
- return FALSE;
-
- if (acquiredScreen != screenNum) {
- xf86DrvMsg(screenNum, X_ERROR,
- "xf86BindGARTMemory: AGP not acquired by this screen\n");
- return FALSE;
- }
-
- if (offset % AGP_PAGE_SIZE != 0) {
- xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: "
- "offset (0x%lx) is not page-aligned (%d)\n",
- offset, AGP_PAGE_SIZE);
- return FALSE;
- }
- pageOffset = offset / AGP_PAGE_SIZE;
-
- xf86DrvMsgVerb(screenNum, X_INFO, 3,
- "xf86BindGARTMemory: bind key %d at 0x%08lx "
- "(pgoffset %d)\n", key, offset, pageOffset);
-
- bind.pg_start = pageOffset;
- bind.key = key;
-
- if (ioctl(gartFd, AGPIOC_BIND, &bind) != 0) {
- xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: "
- "binding of gart memory with key %d\n"
- "\tat offset 0x%lx failed (%s)\n",
- key, offset, strerror(errno));
- return FALSE;
- }
-
- return TRUE;
+ struct _agp_bind bind;
+ int pageOffset;
+
+ if (!GARTInit(screenNum) || acquiredScreen != screenNum)
+ return FALSE;
+
+ if (acquiredScreen != screenNum) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "xf86BindGARTMemory: AGP not acquired by this screen\n");
+ return FALSE;
+ }
+
+ if (offset % AGP_PAGE_SIZE != 0) {
+ xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: "
+ "offset (0x%lx) is not page-aligned (%d)\n",
+ offset, AGP_PAGE_SIZE);
+ return FALSE;
+ }
+ pageOffset = offset / AGP_PAGE_SIZE;
+
+ xf86DrvMsgVerb(screenNum, X_INFO, 3,
+ "xf86BindGARTMemory: bind key %d at 0x%08lx "
+ "(pgoffset %d)\n", key, offset, pageOffset);
+
+ bind.pg_start = pageOffset;
+ bind.key = key;
+
+ if (ioctl(gartFd, AGPIOC_BIND, &bind) != 0) {
+ xf86DrvMsg(screenNum, X_WARNING, "xf86BindGARTMemory: "
+ "binding of gart memory with key %d\n"
+ "\tat offset 0x%lx failed (%s)\n",
+ key, offset, strerror(errno));
+ return FALSE;
+ }
+
+ return TRUE;
}
-
/* Unbind GART memory with "key" */
Bool
xf86UnbindGARTMemory(int screenNum, int key)
{
- struct _agp_unbind unbind;
+ struct _agp_unbind unbind;
- if (!GARTInit(screenNum) || acquiredScreen != screenNum)
- return FALSE;
+ if (!GARTInit(screenNum) || acquiredScreen != screenNum)
+ return FALSE;
- if (acquiredScreen != screenNum) {
- xf86DrvMsg(screenNum, X_ERROR,
- "xf86UnbindGARTMemory: AGP not acquired by this screen\n");
- return FALSE;
- }
+ if (acquiredScreen != screenNum) {
+ xf86DrvMsg(screenNum, X_ERROR,
+ "xf86UnbindGARTMemory: AGP not acquired by this screen\n");
+ return FALSE;
+ }
- unbind.priority = 0;
- unbind.key = key;
+ unbind.priority = 0;
+ unbind.key = key;
- if (ioctl(gartFd, AGPIOC_UNBIND, &unbind) != 0) {
- xf86DrvMsg(screenNum, X_WARNING, "xf86UnbindGARTMemory: "
- "unbinding of gart memory with key %d "
- "failed (%s)\n", key, strerror(errno));
- return FALSE;
- }
+ if (ioctl(gartFd, AGPIOC_UNBIND, &unbind) != 0) {
+ xf86DrvMsg(screenNum, X_WARNING, "xf86UnbindGARTMemory: "
+ "unbinding of gart memory with key %d "
+ "failed (%s)\n", key, strerror(errno));
+ return FALSE;
+ }
- xf86DrvMsgVerb(screenNum, X_INFO, 3,
- "xf86UnbindGARTMemory: unbind key %d\n", key);
+ xf86DrvMsgVerb(screenNum, X_INFO, 3,
+ "xf86UnbindGARTMemory: unbind key %d\n", key);
- return TRUE;
+ return TRUE;
}
-
/* XXX Interface may change. */
Bool
xf86EnableAGP(int screenNum, CARD32 mode)
{
- agp_setup setup;
+ agp_setup setup;
- if (!GARTInit(screenNum) || acquiredScreen != screenNum)
- return FALSE;
+ if (!GARTInit(screenNum) || acquiredScreen != screenNum)
+ return FALSE;
- setup.agp_mode = mode;
- if (ioctl(gartFd, AGPIOC_SETUP, &setup) != 0) {
- xf86DrvMsg(screenNum, X_WARNING, "xf86EnableAGP: "
- "AGPIOC_SETUP with mode %ld failed (%s)\n",
- (unsigned long)mode, strerror(errno));
- return FALSE;
- }
+ setup.agp_mode = mode;
+ if (ioctl(gartFd, AGPIOC_SETUP, &setup) != 0) {
+ xf86DrvMsg(screenNum, X_WARNING, "xf86EnableAGP: "
+ "AGPIOC_SETUP with mode %ld failed (%s)\n",
+ (unsigned long) mode, strerror(errno));
+ return FALSE;
+ }
- return TRUE;
+ return TRUE;
}
-
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