blob: ea8c7570e92c2e5cb41493a1af192904fb6b6301 [file] [log] [blame] [edit]
/*
* Copyright 2017 Advanced Micro Devices. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifdef DRV_AMDGPU
#include <assert.h>
#include <dlfcn.h>
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>
#include <xf86drm.h>
#include "dri.h"
#include "drv_helpers.h"
#include "drv_priv.h"
#include "util.h"
static const struct {
uint32_t drm_format;
int dri_image_format;
} drm_to_dri_image_formats[] = {
{ DRM_FORMAT_R8, __DRI_IMAGE_FORMAT_R8 },
{ DRM_FORMAT_GR88, __DRI_IMAGE_FORMAT_GR88 },
{ DRM_FORMAT_RGB565, __DRI_IMAGE_FORMAT_RGB565 },
{ DRM_FORMAT_XRGB8888, __DRI_IMAGE_FORMAT_XRGB8888 },
{ DRM_FORMAT_ARGB8888, __DRI_IMAGE_FORMAT_ARGB8888 },
{ DRM_FORMAT_XBGR8888, __DRI_IMAGE_FORMAT_XBGR8888 },
{ DRM_FORMAT_ABGR8888, __DRI_IMAGE_FORMAT_ABGR8888 },
{ DRM_FORMAT_XRGB2101010, __DRI_IMAGE_FORMAT_XRGB2101010 },
{ DRM_FORMAT_XBGR2101010, __DRI_IMAGE_FORMAT_XBGR2101010 },
{ DRM_FORMAT_ARGB2101010, __DRI_IMAGE_FORMAT_ARGB2101010 },
{ DRM_FORMAT_ABGR2101010, __DRI_IMAGE_FORMAT_ABGR2101010 },
{ DRM_FORMAT_ABGR16161616F, __DRI_IMAGE_FORMAT_ABGR16161616F },
};
static int drm_format_to_dri_format(uint32_t drm_format)
{
uint32_t i;
for (i = 0; i < ARRAY_SIZE(drm_to_dri_image_formats); i++) {
if (drm_to_dri_image_formats[i].drm_format == drm_format)
return drm_to_dri_image_formats[i].dri_image_format;
}
return 0;
}
static bool lookup_extension(const __DRIextension *const *extensions, const char *name,
int min_version, const __DRIextension **dst)
{
while (*extensions) {
if ((*extensions)->name && !strcmp((*extensions)->name, name) &&
(*extensions)->version >= min_version) {
*dst = *extensions;
return true;
}
extensions++;
}
return false;
}
/*
* Close Gem Handle
*/
static void close_gem_handle(uint32_t handle, int fd)
{
struct drm_gem_close gem_close = { 0 };
int ret = 0;
gem_close.handle = handle;
ret = drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, &gem_close);
if (ret)
drv_log("DRM_IOCTL_GEM_CLOSE failed (handle=%x) error %d\n", handle, ret);
}
/*
* The DRI GEM namespace may be different from the minigbm's driver GEM namespace. We have
* to import into minigbm.
*/
static int import_into_minigbm(struct dri_driver *dri, struct bo *bo)
{
uint32_t handle;
int ret, modifier_upper, modifier_lower, num_planes, i, j;
off_t dmabuf_sizes[DRV_MAX_PLANES];
__DRIimage *plane_image = NULL;
if (dri->image_extension->queryImage(bo->priv, __DRI_IMAGE_ATTRIB_MODIFIER_UPPER,
&modifier_upper) &&
dri->image_extension->queryImage(bo->priv, __DRI_IMAGE_ATTRIB_MODIFIER_LOWER,
&modifier_lower))
bo->meta.format_modifier =
((uint64_t)modifier_upper << 32) | (uint32_t)modifier_lower;
else
bo->meta.format_modifier = DRM_FORMAT_MOD_INVALID;
if (!dri->image_extension->queryImage(bo->priv, __DRI_IMAGE_ATTRIB_NUM_PLANES, &num_planes))
return -errno;
bo->meta.num_planes = num_planes;
for (i = 0; i < num_planes; ++i) {
int prime_fd, stride, offset;
plane_image = dri->image_extension->fromPlanar(bo->priv, i, NULL);
__DRIimage *image = plane_image ? plane_image : bo->priv;
if (!dri->image_extension->queryImage(image, __DRI_IMAGE_ATTRIB_STRIDE, &stride) ||
!dri->image_extension->queryImage(image, __DRI_IMAGE_ATTRIB_OFFSET, &offset)) {
ret = -errno;
goto cleanup;
}
if (!dri->image_extension->queryImage(image, __DRI_IMAGE_ATTRIB_FD, &prime_fd)) {
ret = -errno;
goto cleanup;
}
dmabuf_sizes[i] = lseek(prime_fd, 0, SEEK_END);
if (dmabuf_sizes[i] == (off_t)-1) {
ret = -errno;
close(prime_fd);
goto cleanup;
}
lseek(prime_fd, 0, SEEK_SET);
ret = drmPrimeFDToHandle(bo->drv->fd, prime_fd, &handle);
close(prime_fd);
if (ret) {
drv_log("drmPrimeFDToHandle failed with %s\n", strerror(errno));
goto cleanup;
}
bo->handles[i].u32 = handle;
bo->meta.strides[i] = stride;
bo->meta.offsets[i] = offset;
if (plane_image)
dri->image_extension->destroyImage(plane_image);
}
for (i = 0; i < num_planes; ++i) {
off_t next_plane = dmabuf_sizes[i];
for (j = 0; j < num_planes; ++j) {
if (bo->meta.offsets[j] < next_plane &&
bo->meta.offsets[j] > bo->meta.offsets[i] &&
bo->handles[j].u32 == bo->handles[i].u32)
next_plane = bo->meta.offsets[j];
}
bo->meta.sizes[i] = next_plane - bo->meta.offsets[i];
/* This is kind of misleading if different planes use
different dmabufs. */
bo->meta.total_size += bo->meta.sizes[i];
}
return 0;
cleanup:
if (plane_image)
dri->image_extension->destroyImage(plane_image);
while (--i >= 0) {
for (j = 0; j <= i; ++j)
if (bo->handles[j].u32 == bo->handles[i].u32)
break;
/* Multiple equivalent handles) */
if (i == j)
break;
/* This kind of goes horribly wrong when we already imported
* the same handles earlier, as we should really reference
* count handles. */
close_gem_handle(bo->handles[i].u32, bo->drv->fd);
}
return ret;
}
/*
* The caller is responsible for setting drv->priv to a structure that derives from dri_driver.
*/
int dri_init(struct driver *drv, const char *dri_so_path, const char *driver_suffix)
{
char fname[128];
const __DRIextension **(*get_extensions)();
const __DRIextension *loader_extensions[] = { NULL };
struct dri_driver *dri = drv->priv;
char *node_name = drmGetRenderDeviceNameFromFd(drv_get_fd(drv));
if (!node_name)
return -ENODEV;
dri->fd = open(node_name, O_RDWR);
free(node_name);
if (dri->fd < 0)
return -ENODEV;
dri->driver_handle = dlopen(dri_so_path, RTLD_NOW | RTLD_GLOBAL);
if (!dri->driver_handle)
goto close_dri_fd;
snprintf(fname, sizeof(fname), __DRI_DRIVER_GET_EXTENSIONS "_%s", driver_suffix);
get_extensions = dlsym(dri->driver_handle, fname);
if (!get_extensions)
goto free_handle;
dri->extensions = get_extensions();
if (!dri->extensions)
goto free_handle;
if (!lookup_extension(dri->extensions, __DRI_CORE, 2,
(const __DRIextension **)&dri->core_extension))
goto free_handle;
/* Version 4 for createNewScreen2 */
if (!lookup_extension(dri->extensions, __DRI_DRI2, 4,
(const __DRIextension **)&dri->dri2_extension))
goto free_handle;
dri->device = dri->dri2_extension->createNewScreen2(0, dri->fd, loader_extensions,
dri->extensions, &dri->configs, NULL);
if (!dri->device)
goto free_handle;
dri->context =
dri->dri2_extension->createNewContext(dri->device, *dri->configs, NULL, NULL);
if (!dri->context)
goto free_screen;
if (!lookup_extension(dri->core_extension->getExtensions(dri->device), __DRI_IMAGE, 12,
(const __DRIextension **)&dri->image_extension))
goto free_context;
if (!lookup_extension(dri->core_extension->getExtensions(dri->device), __DRI2_FLUSH, 4,
(const __DRIextension **)&dri->flush_extension))
goto free_context;
return 0;
free_context:
dri->core_extension->destroyContext(dri->context);
free_screen:
dri->core_extension->destroyScreen(dri->device);
free_handle:
dlclose(dri->driver_handle);
dri->driver_handle = NULL;
close_dri_fd:
close(dri->fd);
return -ENODEV;
}
/*
* The caller is responsible for freeing drv->priv.
*/
void dri_close(struct driver *drv)
{
struct dri_driver *dri = drv->priv;
dri->core_extension->destroyContext(dri->context);
dri->core_extension->destroyScreen(dri->device);
dlclose(dri->driver_handle);
dri->driver_handle = NULL;
close(dri->fd);
}
int dri_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
uint64_t use_flags)
{
unsigned int dri_use;
int ret, dri_format;
struct dri_driver *dri = bo->drv->priv;
dri_format = drm_format_to_dri_format(format);
/* Gallium drivers require shared to get the handle and stride. */
dri_use = __DRI_IMAGE_USE_SHARE;
if (use_flags & BO_USE_SCANOUT)
dri_use |= __DRI_IMAGE_USE_SCANOUT;
if (use_flags & BO_USE_CURSOR)
dri_use |= __DRI_IMAGE_USE_CURSOR;
if (use_flags & BO_USE_LINEAR)
dri_use |= __DRI_IMAGE_USE_LINEAR;
bo->priv = dri->image_extension->createImage(dri->device, width, height, dri_format,
dri_use, NULL);
if (!bo->priv) {
ret = -errno;
return ret;
}
ret = import_into_minigbm(dri, bo);
if (ret)
goto free_image;
return 0;
free_image:
dri->image_extension->destroyImage(bo->priv);
return ret;
}
int dri_bo_create_with_modifiers(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
const uint64_t *modifiers, uint32_t modifier_count)
{
int ret, dri_format;
struct dri_driver *dri = bo->drv->priv;
if (!dri->image_extension->createImageWithModifiers)
return -ENOENT;
dri_format = drm_format_to_dri_format(format);
bo->priv = dri->image_extension->createImageWithModifiers(
dri->device, width, height, dri_format, modifiers, modifier_count, NULL);
if (!bo->priv) {
ret = -errno;
return ret;
}
ret = import_into_minigbm(dri, bo);
if (ret)
goto free_image;
return 0;
free_image:
dri->image_extension->destroyImage(bo->priv);
return ret;
}
int dri_bo_import(struct bo *bo, struct drv_import_fd_data *data)
{
int ret;
struct dri_driver *dri = bo->drv->priv;
if (data->format_modifier != DRM_FORMAT_MOD_INVALID) {
unsigned error;
if (!dri->image_extension->createImageFromDmaBufs2)
return -ENOSYS;
// clang-format off
bo->priv = dri->image_extension->createImageFromDmaBufs2(dri->device, data->width, data->height,
drv_get_standard_fourcc(data->format),
data->format_modifier,
data->fds,
bo->meta.num_planes,
(int *)data->strides,
(int *)data->offsets,
__DRI_YUV_COLOR_SPACE_UNDEFINED,
__DRI_YUV_RANGE_UNDEFINED,
__DRI_YUV_CHROMA_SITING_UNDEFINED,
__DRI_YUV_CHROMA_SITING_UNDEFINED,
&error, NULL);
// clang-format on
/* Could translate the DRI error, but the Mesa GBM also returns ENOSYS. */
if (!bo->priv)
return -ENOSYS;
} else {
// clang-format off
bo->priv = dri->image_extension->createImageFromFds(dri->device, data->width, data->height,
drv_get_standard_fourcc(data->format), data->fds,
bo->meta.num_planes,
(int *)data->strides,
(int *)data->offsets, NULL);
// clang-format on
if (!bo->priv)
return -errno;
}
ret = import_into_minigbm(dri, bo);
if (ret) {
dri->image_extension->destroyImage(bo->priv);
return ret;
}
return 0;
}
int dri_bo_release(struct bo *bo)
{
struct dri_driver *dri = bo->drv->priv;
assert(bo->priv);
dri->image_extension->destroyImage(bo->priv);
/* Not clearing bo->priv as we still use it to determine which destroy to call. */
return 0;
}
int dri_bo_destroy(struct bo *bo)
{
assert(bo->priv);
close_gem_handle(bo->handles[0].u32, bo->drv->fd);
bo->priv = NULL;
return 0;
}
/*
* Map an image plane.
*
* This relies on the underlying driver to do a decompressing and/or de-tiling
* blit if necessary,
*
* This function itself is not thread-safe; we rely on the fact that the caller
* locks a per-driver mutex.
*/
void *dri_bo_map(struct bo *bo, struct vma *vma, size_t plane, uint32_t map_flags)
{
struct dri_driver *dri = bo->drv->priv;
/* GBM flags and DRI flags are the same. */
vma->addr = dri->image_extension->mapImage(dri->context, bo->priv, 0, 0, bo->meta.width,
bo->meta.height, map_flags,
(int *)&vma->map_strides[plane], &vma->priv);
if (!vma->addr)
return MAP_FAILED;
return vma->addr;
}
int dri_bo_unmap(struct bo *bo, struct vma *vma)
{
struct dri_driver *dri = bo->drv->priv;
assert(vma->priv);
dri->image_extension->unmapImage(dri->context, bo->priv, vma->priv);
/*
* From gbm_dri.c in Mesa:
*
* "Not all DRI drivers use direct maps. They may queue up DMA operations
* on the mapping context. Since there is no explicit gbm flush mechanism,
* we need to flush here."
*/
dri->flush_extension->flush_with_flags(dri->context, NULL, __DRI2_FLUSH_CONTEXT, 0);
return 0;
}
size_t dri_num_planes_from_modifier(struct driver *drv, uint32_t format, uint64_t modifier)
{
struct dri_driver *dri = drv->priv;
if (!dri->image_extension->queryDmaBufFormatModifierAttribs) {
/* We do not do any modifier checks here. The create will fail
* later if the modifier is not supported. */
return drv_num_planes_from_format(format);
}
uint64_t planes;
unsigned char ret = dri->image_extension->queryDmaBufFormatModifierAttribs(
dri->device, format, modifier, __DRI_IMAGE_FORMAT_MODIFIER_ATTRIB_PLANE_COUNT, &planes);
if (!ret)
return 0;
return planes;
}
bool dri_query_modifiers(struct driver *drv, uint32_t format, int max, uint64_t *modifiers,
int *count)
{
struct dri_driver *dri = drv->priv;
if (!dri->image_extension->queryDmaBufModifiers)
return false;
return dri->image_extension->queryDmaBufModifiers(dri->device, format, max, modifiers, NULL,
count);
}
#endif