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-rw-r--r--bsd-core/drmP.h16
-rw-r--r--bsd-core/drm_drv.c16
-rw-r--r--bsd-core/drm_ioctl.c91
-rw-r--r--bsd-core/drm_irq.c120
4 files changed, 131 insertions, 112 deletions
diff --git a/bsd-core/drmP.h b/bsd-core/drmP.h
index 4b7d737b..82a226a9 100644
--- a/bsd-core/drmP.h
+++ b/bsd-core/drmP.h
@@ -118,6 +118,8 @@ typedef struct drm_file drm_file_t;
#define DRM_MIN(a,b) ((a)<(b)?(a):(b))
#define DRM_MAX(a,b) ((a)>(b)?(a):(b))
+#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
+
#define DRM_GET_PRIV_SAREA(_dev, _ctx, _map) do { \
(_map) = (_dev)->context_sareas[_ctx]; \
} while(0)
@@ -316,6 +318,7 @@ struct drm_device {
device_t device; /* Device instance from newbus */
#endif
dev_t devnode; /* Device number for mknod */
+ int if_version; /* Highest interface version set */
int flags; /* Flags to open(2) */
@@ -355,14 +358,21 @@ struct drm_device {
/* Context support */
int irq; /* Interrupt used by board */
- int irqrid; /* Interrupt used by board */
+ int irq_enabled; /* True if the irq handler is enabled */
#ifdef __FreeBSD__
+ int irqrid; /* Interrupt used by board */
struct resource *irqr; /* Resource for interrupt used by board */
#elif defined(__NetBSD__)
struct pci_attach_args pa;
pci_intr_handle_t ih;
#endif
void *irqh; /* Handle from bus_setup_intr */
+
+ int pci_domain;
+ int pci_bus;
+ int pci_slot;
+ int pci_func;
+
atomic_t context_flag; /* Context swapping flag */
int last_context; /* Last current context */
#if __FreeBSD_version >= 400005
@@ -445,7 +455,7 @@ extern void DRM(reclaim_buffers)(drm_device_t *dev, DRMFILE filp);
#if __HAVE_IRQ
/* IRQ support (drm_irq.h) */
-extern int DRM(irq_install)( drm_device_t *dev, int irq );
+extern int DRM(irq_install)(drm_device_t *dev);
extern int DRM(irq_uninstall)( drm_device_t *dev );
extern irqreturn_t DRM(irq_handler)( DRM_IRQ_ARGS );
extern void DRM(driver_irq_preinstall)( drm_device_t *dev );
@@ -494,7 +504,7 @@ extern int DRM(version)( DRM_IOCTL_ARGS );
extern int DRM(setversion)( DRM_IOCTL_ARGS );
/* Misc. IOCTL support (drm_ioctl.h) */
-extern int DRM(irq_busid)(DRM_IOCTL_ARGS);
+extern int DRM(irq_by_busid)(DRM_IOCTL_ARGS);
extern int DRM(getunique)(DRM_IOCTL_ARGS);
extern int DRM(setunique)(DRM_IOCTL_ARGS);
extern int DRM(getmap)(DRM_IOCTL_ARGS);
diff --git a/bsd-core/drm_drv.c b/bsd-core/drm_drv.c
index 0cbc1083..1083f9f9 100644
--- a/bsd-core/drm_drv.c
+++ b/bsd-core/drm_drv.c
@@ -134,7 +134,9 @@ static drm_ioctl_desc_t DRM(ioctls)[] = {
[DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { DRM(version), 0, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { DRM(getunique), 0, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { DRM(getmagic), 0, 0 },
- [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { DRM(irq_busid), 0, 1 },
+#if __HAVE_IRQ
+ [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { DRM(irq_by_busid), 0, 1 },
+#endif
[DRM_IOCTL_NR(DRM_IOCTL_GET_MAP)] = { DRM(getmap), 0, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT)] = { DRM(getclient), 0, 0 },
[DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)] = { DRM(getstats), 0, 0 },
@@ -477,9 +479,10 @@ static int DRM(setup)( drm_device_t *dev )
dev->lock.hw_lock = NULL;
dev->lock.lock_queue = 0;
- dev->irq = 0;
+ dev->irq_enabled = 0;
dev->context_flag = 0;
dev->last_context = 0;
+ dev->if_version = 0;
#ifdef __FreeBSD__
dev->buf_sigio = NULL;
@@ -507,7 +510,7 @@ static int DRM(takedown)( drm_device_t *dev )
DRIVER_PRETAKEDOWN();
#if __HAVE_IRQ
- if (dev->irq != 0)
+ if (dev->irq_enabled)
DRM(irq_uninstall)( dev );
#endif
@@ -644,6 +647,13 @@ static int DRM(init)( device_t nbdev )
unit = minor(dev->device.dv_unit);
#endif
+ dev->irq = pci_get_irq(dev->device);
+ /* XXX Fix domain number (alpha hoses) */
+ dev->pci_domain = 0;
+ dev->pci_bus = pci_get_bus(dev->device);
+ dev->pci_slot = pci_get_slot(dev->device);
+ dev->pci_func = pci_get_function(dev->device);
+
dev->maplist = DRM(calloc)(1, sizeof(*dev->maplist), DRM_MEM_MAPS);
if (dev->maplist == NULL) {
retcode = ENOMEM;
diff --git a/bsd-core/drm_ioctl.c b/bsd-core/drm_ioctl.c
index 50cf937d..0952211e 100644
--- a/bsd-core/drm_ioctl.c
+++ b/bsd-core/drm_ioctl.c
@@ -32,53 +32,6 @@
#include "drmP.h"
-int DRM(irq_busid)( DRM_IOCTL_ARGS )
-{
-#ifdef __FreeBSD__
- drm_irq_busid_t id;
- devclass_t pci;
- device_t bus, dev;
- device_t *kids;
- int error, i, num_kids;
-
- DRM_COPY_FROM_USER_IOCTL( id, (drm_irq_busid_t *)data, sizeof(id) );
-
- pci = devclass_find("pci");
- if (!pci)
- return ENOENT;
- bus = devclass_get_device(pci, id.busnum);
- if (!bus)
- return ENOENT;
- error = device_get_children(bus, &kids, &num_kids);
- if (error)
- return error;
-
- dev = 0;
- for (i = 0; i < num_kids; i++) {
- dev = kids[i];
- if (pci_get_slot(dev) == id.devnum
- && pci_get_function(dev) == id.funcnum)
- break;
- }
-
- free(kids, M_TEMP);
-
- if (i != num_kids)
- id.irq = pci_get_irq(dev);
- else
- id.irq = 0;
- DRM_DEBUG("%d:%d:%d => IRQ %d\n",
- id.busnum, id.devnum, id.funcnum, id.irq);
-
- DRM_COPY_TO_USER_IOCTL( (drm_irq_busid_t *)data, id, sizeof(id) );
-
- return 0;
-#else
- /* don't support interrupt-driven drivers on Net yet */
- return ENOENT;
-#endif
-}
-
/*
* Beginning in revision 1.1 of the DRM interface, getunique will return
* a unique in the form pci:oooo:bb:dd.f (o=domain, b=bus, d=device, f=function)
@@ -109,7 +62,8 @@ int DRM(getunique)( DRM_IOCTL_ARGS )
int DRM(setunique)( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
- drm_unique_t u;
+ drm_unique_t u;
+ int domain, bus, slot, func, ret;
if (dev->unique_len || dev->unique)
return DRM_ERR(EBUSY);
@@ -130,6 +84,21 @@ int DRM(setunique)( DRM_IOCTL_ARGS )
dev->unique[dev->unique_len] = '\0';
+ /* Return error if the busid submitted doesn't match the device's actual
+ * busid.
+ */
+ ret = sscanf(dev->unique, "PCI:%d:%d:%d", &bus, &slot, &func);
+ if (ret != 3)
+ return DRM_ERR(EINVAL);
+ domain = bus >> 8;
+ bus &= 0xff;
+
+ if ((domain != dev->pci_domain) ||
+ (bus != dev->pci_bus) ||
+ (slot != dev->pci_slot) ||
+ (func != dev->pci_func))
+ return DRM_ERR(EINVAL);
+
return 0;
}
@@ -146,10 +115,8 @@ DRM(set_busid)(drm_device_t *dev)
if (dev->unique == NULL)
return ENOMEM;
- /* XXX Fix domain number (alpha hoses) */
snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%1x",
- 0, pci_get_bus(dev->device), pci_get_slot(dev->device),
- pci_get_function(dev->device));
+ dev->pci_domain, dev->pci_bus, dev->pci_slot, dev->pci_func);
return 0;
}
@@ -260,26 +227,31 @@ int DRM(getstats)( DRM_IOCTL_ARGS )
return 0;
}
+#define DRM_IF_MAJOR 1
+#define DRM_IF_MINOR 2
+
int DRM(setversion)(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_set_version_t sv;
drm_set_version_t retv;
+ int if_version;
DRM_COPY_FROM_USER_IOCTL(sv, (drm_set_version_t *)data, sizeof(sv));
- retv.drm_di_major = 1;
- retv.drm_di_minor = 1;
+ retv.drm_di_major = DRM_IF_MAJOR;
+ retv.drm_di_minor = DRM_IF_MINOR;
retv.drm_dd_major = DRIVER_MAJOR;
retv.drm_dd_minor = DRIVER_MINOR;
DRM_COPY_TO_USER_IOCTL((drm_set_version_t *)data, retv, sizeof(sv));
if (sv.drm_di_major != -1) {
- if (sv.drm_di_major != 1 || sv.drm_di_minor < 0)
- return EINVAL;
- if (sv.drm_di_minor > 1)
+ if (sv.drm_di_major != DRM_IF_MAJOR ||
+ sv.drm_di_minor < 0 || sv.drm_di_minor > DRM_IF_MINOR)
return EINVAL;
+ if_version = DRM_IF_VERSION(sv.drm_di_major, sv.drm_dd_minor);
+ dev->if_version = DRM_MAX(if_version, dev->if_version);
if (sv.drm_di_minor >= 1) {
/*
* Version 1.1 includes tying of DRM to specific device
@@ -289,12 +261,11 @@ int DRM(setversion)(DRM_IOCTL_ARGS)
}
if (sv.drm_dd_major != -1) {
- if (sv.drm_dd_major != DRIVER_MAJOR || sv.drm_dd_minor < 0)
- return EINVAL;
- if (sv.drm_dd_minor > DRIVER_MINOR)
+ if (sv.drm_dd_major != DRIVER_MAJOR ||
+ sv.drm_dd_minor < 0 || sv.drm_dd_minor > DRIVER_MINOR)
return EINVAL;
#ifdef DRIVER_SETVERSION
- DRIVER_SETVERSION(dev, sv);
+ DRIVER_SETVERSION(dev, &sv);
#endif
}
return 0;
diff --git a/bsd-core/drm_irq.c b/bsd-core/drm_irq.c
index f984118e..1de817c3 100644
--- a/bsd-core/drm_irq.c
+++ b/bsd-core/drm_irq.c
@@ -28,6 +28,29 @@
*
*/
+int DRM(irq_by_busid)( DRM_IOCTL_ARGS )
+{
+ DRM_DEVICE;
+ drm_irq_busid_t irq;
+
+ DRM_COPY_FROM_USER_IOCTL(irq, (drm_irq_busid_t *)data, sizeof(irq));
+
+ if ((irq.busnum >> 8) != dev->pci_domain ||
+ (irq.busnum & 0xff) != dev->pci_bus ||
+ irq.devnum != dev->pci_slot ||
+ irq.funcnum != dev->pci_func)
+ return EINVAL;
+
+ irq.irq = dev->irq;
+
+ DRM_DEBUG("%d:%d:%d => IRQ %d\n",
+ irq.busnum, irq.devnum, irq.funcnum, irq.irq);
+
+ DRM_COPY_TO_USER_IOCTL( (drm_irq_busid_t *)data, irq, sizeof(irq) );
+
+ return 0;
+}
+
#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
static irqreturn_t
DRM(irq_handler_wrap)(DRM_IRQ_ARGS)
@@ -40,22 +63,22 @@ DRM(irq_handler_wrap)(DRM_IRQ_ARGS)
}
#endif
-int DRM(irq_install)( drm_device_t *dev, int irq )
+int DRM(irq_install)(drm_device_t *dev)
{
int retcode;
- if ( irq == 0 || dev->dev_private == NULL)
+ if (dev->irq == 0 || dev->dev_private == NULL)
return DRM_ERR(EINVAL);
DRM_LOCK();
- if ( dev->irq ) {
+ if (dev->irq_enabled) {
DRM_UNLOCK();
return DRM_ERR(EBUSY);
}
- dev->irq = irq;
+ dev->irq_enabled = 1;
DRM_UNLOCK();
- DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, irq );
+ DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, dev->irq );
dev->context_flag = 0;
@@ -68,31 +91,18 @@ int DRM(irq_install)( drm_device_t *dev, int irq )
DRM_SPININIT(dev->irq_lock, "DRM IRQ lock");
-#if __HAVE_VBL_IRQ && 0 /* disabled */
- TAILQ_INIT( &dev->vbl_sig_list );
-#endif
-
/* Before installing handler */
DRM(driver_irq_preinstall)( dev );
/* Install handler */
- dev->irqrid = 0;
#ifdef __FreeBSD__
+ dev->irqrid = 0;
dev->irqr = bus_alloc_resource(dev->device, SYS_RES_IRQ, &dev->irqrid,
0, ~0, 1, RF_SHAREABLE);
if (!dev->irqr) {
-#elif defined(__NetBSD__)
- if (pci_intr_map(&dev->pa, &dev->ih) != 0) {
-#endif
- DRM_LOCK();
- DRM_SPINUNINIT(dev->irq_lock);
- dev->irq = 0;
- dev->irqrid = 0;
- DRM_UNLOCK();
- return ENOENT;
+ retcode = ENOENT;
+ goto err;
}
-
-#ifdef __FreeBSD__
#if __FreeBSD_version < 500000
retcode = bus_setup_intr(dev->device, dev->irqr, INTR_TYPE_TTY,
DRM(irq_handler), dev, &dev->irqh);
@@ -100,45 +110,56 @@ int DRM(irq_install)( drm_device_t *dev, int irq )
retcode = bus_setup_intr(dev->device, dev->irqr, INTR_TYPE_TTY | INTR_MPSAFE,
DRM(irq_handler_wrap), dev, &dev->irqh);
#endif
- if ( retcode ) {
+ if (retcode != 0)
+ goto err;
#elif defined(__NetBSD__)
+ if (pci_intr_map(&dev->pa, &dev->ih) != 0) {
+ retcode = ENOENT;
+ goto err;
+ }
dev->irqh = pci_intr_establish(&dev->pa.pa_pc, dev->ih, IPL_TTY,
(irqreturn_t (*)(DRM_IRQ_ARGS))DRM(irq_handler), dev);
- if ( !dev->irqh ) {
-#endif
- DRM_LOCK();
-#ifdef __FreeBSD__
- bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid, dev->irqr);
-#endif
- DRM_SPINUNINIT(dev->irq_lock);
- dev->irq = 0;
- dev->irqrid = 0;
- DRM_UNLOCK();
- return retcode;
+ if (!dev->irqh) {
+ retcode = ENOENT;
+ goto err;
}
+#endif
/* After installing handler */
DRM(driver_irq_postinstall)( dev );
return 0;
+err:
+ DRM_LOCK();
+ dev->irq_enabled = 0;
+#ifdef ___FreeBSD__
+ if (dev->irqrid != 0) {
+ bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid,
+ dev->irqr);
+ dev->irqrid = 0;
+ }
+#endif
+ DRM_SPINUNINIT(dev->irq_lock);
+ DRM_UNLOCK();
+ return retcode;
}
+/* XXX: This function needs to be called with the device lock held. In some
+ * cases it isn't, so far.
+ */
int DRM(irq_uninstall)( drm_device_t *dev )
{
- int irq;
+ int irq_enabled;
int irqrid;
-
- DRM_LOCK();
- irq = dev->irq;
- irqrid = dev->irqrid;
- dev->irq = 0;
- dev->irqrid = 0;
- DRM_UNLOCK();
- if ( !irq )
+ if (!dev->irq_enabled)
return DRM_ERR(EINVAL);
- DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, irq );
+ dev->irq_enabled = 0;
+ irqrid = dev->irqrid;
+ dev->irqrid = 0;
+
+ DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, dev->irq );
DRM(driver_irq_uninstall)( dev );
@@ -157,14 +178,21 @@ int DRM(control)( DRM_IOCTL_ARGS )
{
DRM_DEVICE;
drm_control_t ctl;
+ int err;
DRM_COPY_FROM_USER_IOCTL( ctl, (drm_control_t *) data, sizeof(ctl) );
switch ( ctl.func ) {
case DRM_INST_HANDLER:
- return DRM(irq_install)( dev, ctl.irq );
+ if (dev->if_version < DRM_IF_VERSION(1, 2) &&
+ ctl.irq != dev->irq)
+ return DRM_ERR(EINVAL);
+ return DRM(irq_install)(dev);
case DRM_UNINST_HANDLER:
- return DRM(irq_uninstall)( dev );
+ DRM_LOCK();
+ err = DRM(irq_uninstall)( dev );
+ DRM_UNLOCK();
+ return err;
default:
return DRM_ERR(EINVAL);
}
@@ -178,7 +206,7 @@ int DRM(wait_vblank)( DRM_IOCTL_ARGS )
struct timeval now;
int ret;
- if (!dev->irq)
+ if (!dev->irq_enabled)
return DRM_ERR(EINVAL);
DRM_COPY_FROM_USER_IOCTL( vblwait, (drm_wait_vblank_t *)data,
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 16:04:36 +0000