drm/linux-core/radeon_gem_proc.c

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/*
* Copyright © 2008 Intel Corporation
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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:
* Eric Anholt <eric@anholt.net>
* Keith Packard <keithp@keithp.com>
*
*/
#include "drmP.h"
#include "drm.h"
#include "radeon_drm.h"
#include "radeon_drv.h"
static int radeon_ring_info(char *buf, char **start, off_t offset,
int request, int *eof, void *data)
{
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
drm_radeon_private_t *dev_priv = dev->dev_private;
int len = 0;
if (offset > DRM_PROC_LIMIT) {
*eof = 1;
return 0;
}
*start = &buf[offset];
*eof = 0;
DRM_PROC_PRINT("RADEON_CP_RB_WPTR %08x\n",
RADEON_READ(RADEON_CP_RB_WPTR));
DRM_PROC_PRINT("RADEON_CP_RB_RPTR %08x\n",
RADEON_READ(RADEON_CP_RB_RPTR));
if (len > request + offset)
return request;
*eof = 1;
return len - offset;
}
static int radeon_interrupt_info(char *buf, char **start, off_t offset,
int request, int *eof, void *data)
{
struct drm_minor *minor = (struct drm_minor *) data;
struct drm_device *dev = minor->dev;
drm_radeon_private_t *dev_priv = dev->dev_private;
int len = 0;
if (offset > DRM_PROC_LIMIT) {
*eof = 1;
return 0;
}
*start = &buf[offset];
*eof = 0;
DRM_PROC_PRINT("Interrupt enable: %08x\n",
RADEON_READ(RADEON_GEN_INT_CNTL));
if (dev_priv->chip_family >= CHIP_RS690) {
DRM_PROC_PRINT("DxMODE_INT_MASK: %08x\n",
RADEON_READ(R500_DxMODE_INT_MASK));
}
DRM_PROC_PRINT("Interrupts received: %d\n",
atomic_read(&dev_priv->irq_received));
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DRM_PROC_PRINT("Current sequence: %d %d\n",
READ_BREADCRUMB(dev_priv), RADEON_READ(RADEON_SCRATCH_REG3));
DRM_PROC_PRINT("Counter sequence: %d\n",
dev_priv->counter);
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if (dev_priv->chip_family >= CHIP_R300)
DRM_PROC_PRINT("CS: %d\n",
GET_SCRATCH(6));
if (len > request + offset)
return request;
*eof = 1;
return len - offset;
}
static struct drm_proc_list {
/** file name */
const char *name;
/** proc callback*/
int (*f) (char *, char **, off_t, int, int *, void *);
} radeon_gem_proc_list[] = {
{"radeon_gem_interrupt", radeon_interrupt_info},
{"radeon_gem_ring", radeon_ring_info},
};
#define RADEON_GEM_PROC_ENTRIES ARRAY_SIZE(radeon_gem_proc_list)
int radeon_gem_proc_init(struct drm_minor *minor)
{
struct proc_dir_entry *ent;
int i, j;
for (i = 0; i < RADEON_GEM_PROC_ENTRIES; i++) {
ent = create_proc_entry(radeon_gem_proc_list[i].name,
S_IFREG | S_IRUGO, minor->dev_root);
if (!ent) {
DRM_ERROR("Cannot create /proc/dri/.../%s\n",
radeon_gem_proc_list[i].name);
for (j = 0; j < i; j++)
remove_proc_entry(radeon_gem_proc_list[i].name,
minor->dev_root);
return -1;
}
ent->read_proc = radeon_gem_proc_list[i].f;
ent->data = minor;
}
return 0;
}
void radeon_gem_proc_cleanup(struct drm_minor *minor)
{
int i;
if (!minor->dev_root)
return;
for (i = 0; i < RADEON_GEM_PROC_ENTRIES; i++)
remove_proc_entry(radeon_gem_proc_list[i].name, minor->dev_root);
}