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Diffstat (limited to 'linux-core/drmP.h')
-rw-r--r--linux-core/drmP.h113
1 files changed, 93 insertions, 20 deletions
diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index b9a4dab4..fcee4104 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -11,11 +11,11 @@
* 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
@@ -23,16 +23,22 @@
* 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>
- *
+ *
*/
#ifndef _DRM_P_H_
#define _DRM_P_H_
#ifdef __KERNEL__
+#ifdef __alpha__
+/* add include of current.h so that "current" is defined
+ * before static inline funcs in wait.h. Doing this so we
+ * can build the DRM (part of PI DRI). 4/21/2000 S + B */
+#include <asm/current.h>
+#endif /* __alpha__ */
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
@@ -47,6 +53,9 @@
#include <linux/sched.h>
#include <linux/smp_lock.h> /* For (un)lock_kernel */
#include <linux/mm.h>
+#ifdef __alpha__
+#include <asm/pgtable.h> /* For pte_wrprotect */
+#endif
#include <asm/io.h>
#include <asm/mman.h>
#include <asm/uaccess.h>
@@ -61,6 +70,9 @@
#include <linux/tqueue.h>
#include <linux/poll.h>
#endif
+#if LINUX_VERSION_CODE < 0x020400
+#include "compat-pre24.h"
+#endif
#include "drm.h"
#define DRM_DEBUG_CODE 2 /* Include debugging code (if > 1, then
@@ -140,15 +152,75 @@ typedef struct wait_queue *wait_queue_head_t;
#define module_exit(x) void cleanup_module(void) { x(); }
#endif
- /* virt_to_page added in 2.4.0-test6 */
-#if LINUX_VERSION_CODE < 0x020400
-#define virt_to_page(kaddr) (mem_map + MAP_NR(kaddr))
-#endif
-
/* Generic cmpxchg added in 2.3.x */
#ifndef __HAVE_ARCH_CMPXCHG
/* Include this here so that driver can be
used with older kernels. */
+#if defined(__alpha__)
+static __inline__ unsigned long
+__cmpxchg_u32(volatile int *m, int old, int new)
+{
+ unsigned long prev, cmp;
+
+ __asm__ __volatile__(
+ "1: ldl_l %0,%2\n"
+ " cmpeq %0,%3,%1\n"
+ " beq %1,2f\n"
+ " mov %4,%1\n"
+ " stl_c %1,%2\n"
+ " beq %1,3f\n"
+ "2: mb\n"
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ : "=&r"(prev), "=&r"(cmp), "=m"(*m)
+ : "r"((long) old), "r"(new), "m"(*m));
+
+ return prev;
+}
+
+static __inline__ unsigned long
+__cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new)
+{
+ unsigned long prev, cmp;
+
+ __asm__ __volatile__(
+ "1: ldq_l %0,%2\n"
+ " cmpeq %0,%3,%1\n"
+ " beq %1,2f\n"
+ " mov %4,%1\n"
+ " stq_c %1,%2\n"
+ " beq %1,3f\n"
+ "2: mb\n"
+ ".subsection 2\n"
+ "3: br 1b\n"
+ ".previous"
+ : "=&r"(prev), "=&r"(cmp), "=m"(*m)
+ : "r"((long) old), "r"(new), "m"(*m));
+
+ return prev;
+}
+
+static __inline__ unsigned long
+__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
+{
+ switch (size) {
+ case 4:
+ return __cmpxchg_u32(ptr, old, new);
+ case 8:
+ return __cmpxchg_u64(ptr, old, new);
+ }
+ return old;
+}
+#define cmpxchg(ptr,o,n) \
+ ({ \
+ __typeof__(*(ptr)) _o_ = (o); \
+ __typeof__(*(ptr)) _n_ = (n); \
+ (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \
+ (unsigned long)_n_, sizeof(*(ptr))); \
+ })
+
+#elif __i386__
static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
unsigned long new, int size)
{
@@ -179,6 +251,7 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
#define cmpxchg(ptr,o,n) \
((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o), \
(unsigned long)(n),sizeof(*(ptr))))
+#endif /* i386 & alpha */
#endif
/* Macros to make printk easier */
@@ -231,7 +304,7 @@ typedef struct drm_ioctl_desc {
typedef struct drm_devstate {
pid_t owner; /* X server pid holding x_lock */
-
+
} drm_devstate_t;
typedef struct drm_magic_entry {
@@ -292,14 +365,14 @@ typedef struct drm_buf {
#define DRM_DMA_HISTOGRAM_NEXT(current) ((current)*10)
typedef struct drm_histogram {
atomic_t total;
-
+
atomic_t queued_to_dispatched[DRM_DMA_HISTOGRAM_SLOTS];
atomic_t dispatched_to_completed[DRM_DMA_HISTOGRAM_SLOTS];
atomic_t completed_to_freed[DRM_DMA_HISTOGRAM_SLOTS];
-
+
atomic_t queued_to_completed[DRM_DMA_HISTOGRAM_SLOTS];
atomic_t queued_to_freed[DRM_DMA_HISTOGRAM_SLOTS];
-
+
atomic_t dma[DRM_DMA_HISTOGRAM_SLOTS];
atomic_t schedule[DRM_DMA_HISTOGRAM_SLOTS];
atomic_t ctx[DRM_DMA_HISTOGRAM_SLOTS];
@@ -323,7 +396,7 @@ typedef struct drm_freelist {
int initialized; /* Freelist in use */
atomic_t count; /* Number of free buffers */
drm_buf_t *next; /* End pointer */
-
+
wait_queue_head_t waiting; /* Processes waiting on free bufs */
int low_mark; /* Low water mark */
int high_mark; /* High water mark */
@@ -388,7 +461,7 @@ typedef struct drm_device_dma {
atomic_t total_prio; /* Total DRM_DMA_PRIORITY */
atomic_t total_bytes; /* Total bytes DMA'd */
atomic_t total_dmas; /* Total DMA buffers dispatched */
-
+
atomic_t total_missed_dma; /* Missed drm_do_dma */
atomic_t total_missed_lock; /* Missed lock in drm_do_dma */
atomic_t total_missed_free; /* Missed drm_free_this_buffer */
@@ -401,7 +474,7 @@ typedef struct drm_device_dma {
drm_buf_entry_t bufs[DRM_MAX_ORDER+1];
int buf_count;
drm_buf_t **buflist; /* Vector of pointers info bufs */
- int seg_count;
+ int seg_count;
int page_count;
unsigned long *pagelist;
unsigned long byte_count;
@@ -462,7 +535,7 @@ typedef struct drm_device {
int unique_len; /* Length of unique field */
dev_t device; /* Device number for mknod */
char *devname; /* For /proc/interrupts */
-
+
int blocked; /* Blocked due to VC switch? */
struct proc_dir_entry *root; /* Root for this device's entries */
@@ -483,7 +556,7 @@ typedef struct drm_device {
atomic_t total_ioctl;
atomic_t total_irq; /* Total interruptions */
atomic_t total_ctx; /* Total context switches */
-
+
atomic_t total_locks;
atomic_t total_unlocks;
atomic_t total_contends;
@@ -524,7 +597,7 @@ typedef struct drm_device {
#if DRM_DMA_HISTOGRAM
drm_histogram_t histo;
#endif
-
+
/* Callback to X server for context switch
and for heavy-handed reset. */
char buf[DRM_BSZ]; /* Output buffer */
@@ -534,7 +607,7 @@ typedef struct drm_device {
struct fasync_struct *buf_async;/* Processes waiting for SIGIO */
wait_queue_head_t buf_readers; /* Processes waiting to read */
wait_queue_head_t buf_writers; /* Processes waiting to ctx switch */
-
+
#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
drm_agp_head_t *agp;
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 23:51:48 +0000