159 lines
4.7 KiB
C
159 lines
4.7 KiB
C
/*
|
|
* Copyright (C) 2021 Icecream95
|
|
* Copyright (C) 2019 Google LLC
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include "drm-shim/drm_shim.h"
|
|
#include "drm-uapi/panfrost_drm.h"
|
|
|
|
#include "util/u_math.h"
|
|
|
|
/* Default GPU ID if PAN_GPU_ID is not set. This defaults to Mali-G52. */
|
|
#define PAN_GPU_ID_DEFAULT (0x7212)
|
|
|
|
bool drm_shim_driver_prefers_first_render_node = true;
|
|
|
|
static int
|
|
pan_ioctl_noop(int fd, unsigned long request, void *arg)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
pan_ioctl_get_param(int fd, unsigned long request, void *arg)
|
|
{
|
|
struct drm_panfrost_get_param *gp = arg;
|
|
|
|
switch (gp->param) {
|
|
case DRM_PANFROST_PARAM_GPU_PROD_ID:
|
|
{
|
|
char *override_version = getenv("PAN_GPU_ID");
|
|
|
|
if (override_version)
|
|
gp->value = strtol(override_version, NULL, 16);
|
|
else
|
|
gp->value = PAN_GPU_ID_DEFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
case DRM_PANFROST_PARAM_SHADER_PRESENT:
|
|
/* Assume an MP4 GPU */
|
|
gp->value = 0xF;
|
|
return 0;
|
|
case DRM_PANFROST_PARAM_TILER_FEATURES:
|
|
gp->value = 0x809;
|
|
return 0;
|
|
case DRM_PANFROST_PARAM_TEXTURE_FEATURES0:
|
|
case DRM_PANFROST_PARAM_TEXTURE_FEATURES1:
|
|
/* Allow all compressed textures */
|
|
gp->value = ~0;
|
|
return 0;
|
|
case DRM_PANFROST_PARAM_GPU_REVISION:
|
|
case DRM_PANFROST_PARAM_THREAD_TLS_ALLOC:
|
|
case DRM_PANFROST_PARAM_AFBC_FEATURES:
|
|
gp->value = 0;
|
|
return 0;
|
|
default:
|
|
fprintf(stderr, "Unknown DRM_IOCTL_PANFROST_GET_PARAM %d\n", gp->param);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
static int
|
|
pan_ioctl_create_bo(int fd, unsigned long request, void *arg)
|
|
{
|
|
struct drm_panfrost_create_bo *create = arg;
|
|
|
|
struct shim_fd *shim_fd = drm_shim_fd_lookup(fd);
|
|
struct shim_bo *bo = calloc(1, sizeof(*bo));
|
|
size_t size = ALIGN(create->size, 4096);
|
|
|
|
drm_shim_bo_init(bo, size);
|
|
|
|
create->handle = drm_shim_bo_get_handle(shim_fd, bo);
|
|
create->offset = bo->mem_addr;
|
|
|
|
drm_shim_bo_put(bo);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
pan_ioctl_mmap_bo(int fd, unsigned long request, void *arg)
|
|
{
|
|
struct drm_panfrost_mmap_bo *mmap_bo = arg;
|
|
|
|
struct shim_fd *shim_fd = drm_shim_fd_lookup(fd);
|
|
struct shim_bo *bo = drm_shim_bo_lookup(shim_fd, mmap_bo->handle);
|
|
|
|
mmap_bo->offset = drm_shim_bo_get_mmap_offset(shim_fd, bo);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
pan_ioctl_madvise(int fd, unsigned long request, void *arg)
|
|
{
|
|
struct drm_panfrost_madvise *madvise = arg;
|
|
|
|
madvise->retained = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ioctl_fn_t driver_ioctls[] = {
|
|
[DRM_PANFROST_SUBMIT] = pan_ioctl_noop,
|
|
[DRM_PANFROST_WAIT_BO] = pan_ioctl_noop,
|
|
[DRM_PANFROST_CREATE_BO] = pan_ioctl_create_bo,
|
|
[DRM_PANFROST_MMAP_BO] = pan_ioctl_mmap_bo,
|
|
[DRM_PANFROST_GET_PARAM] = pan_ioctl_get_param,
|
|
[DRM_PANFROST_GET_BO_OFFSET] = pan_ioctl_noop,
|
|
[DRM_PANFROST_PERFCNT_ENABLE] = pan_ioctl_noop,
|
|
[DRM_PANFROST_PERFCNT_DUMP] = pan_ioctl_noop,
|
|
[DRM_PANFROST_MADVISE] = pan_ioctl_madvise,
|
|
};
|
|
|
|
void
|
|
drm_shim_driver_init(void)
|
|
{
|
|
shim_device.bus_type = DRM_BUS_PLATFORM;
|
|
shim_device.driver_name = "panfrost";
|
|
shim_device.driver_ioctls = driver_ioctls;
|
|
shim_device.driver_ioctl_count = ARRAY_SIZE(driver_ioctls);
|
|
|
|
/* panfrost uses the DRM version to expose features, instead of getparam. */
|
|
shim_device.version_major = 1;
|
|
shim_device.version_minor = 1;
|
|
shim_device.version_patchlevel = 0;
|
|
|
|
drm_shim_override_file("DRIVER=panfrost\n"
|
|
"OF_FULLNAME=/soc/mali\n"
|
|
"OF_COMPATIBLE_0=arm,mali-t860\n"
|
|
"OF_COMPATIBLE_N=1\n",
|
|
"/sys/dev/char/%d:%d/device/uevent", DRM_MAJOR,
|
|
render_node_minor);
|
|
}
|