/*
- * Copyright (c) 2016 The Chromium OS Authors. All rights reserved.
+ * Copyright 2016 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <assert.h>
+#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
+#include <sys/types.h>
+#include <unistd.h>
#include <xf86drm.h>
+#ifdef __ANDROID__
+#include <cutils/log.h>
+#include <libgen.h>
+#endif
+
#include "drv_priv.h"
#include "helpers.h"
#include "util.h"
#ifdef DRV_AMDGPU
-extern struct backend backend_amdgpu;
+extern const struct backend backend_amdgpu;
#endif
-extern struct backend backend_cirrus;
-extern struct backend backend_evdi;
+extern const struct backend backend_evdi;
#ifdef DRV_EXYNOS
-extern struct backend backend_exynos;
+extern const struct backend backend_exynos;
#endif
-extern struct backend backend_gma500;
#ifdef DRV_I915
-extern struct backend backend_i915;
+extern const struct backend backend_i915;
#endif
#ifdef DRV_MARVELL
-extern struct backend backend_marvell;
+extern const struct backend backend_marvell;
#endif
#ifdef DRV_MEDIATEK
-extern struct backend backend_mediatek;
+extern const struct backend backend_mediatek;
+#endif
+#ifdef DRV_MESON
+extern const struct backend backend_meson;
+#endif
+#ifdef DRV_MSM
+extern const struct backend backend_msm;
+#endif
+extern const struct backend backend_nouveau;
+#ifdef DRV_RADEON
+extern const struct backend backend_radeon;
#endif
#ifdef DRV_ROCKCHIP
-extern struct backend backend_rockchip;
+extern const struct backend backend_rockchip;
#endif
#ifdef DRV_TEGRA
-extern struct backend backend_tegra;
+extern const struct backend backend_tegra;
#endif
-extern struct backend backend_udl;
-extern struct backend backend_virtio_gpu;
+extern const struct backend backend_udl;
+#ifdef DRV_VC4
+extern const struct backend backend_vc4;
+#endif
+extern const struct backend backend_vgem;
+extern const struct backend backend_virtio_gpu;
-static struct backend *drv_get_backend(int fd)
+static const struct backend *drv_get_backend(int fd)
{
drmVersionPtr drm_version;
unsigned int i;
if (!drm_version)
return NULL;
- struct backend *backend_list[] = {
+ const struct backend *backend_list[] = {
#ifdef DRV_AMDGPU
&backend_amdgpu,
#endif
- &backend_cirrus,
&backend_evdi,
#ifdef DRV_EXYNOS
&backend_exynos,
#endif
- &backend_gma500,
#ifdef DRV_I915
&backend_i915,
#endif
#ifdef DRV_MEDIATEK
&backend_mediatek,
#endif
+#ifdef DRV_MESON
+ &backend_meson,
+#endif
+#ifdef DRV_MSM
+ &backend_msm,
+#endif
+ &backend_nouveau,
+#ifdef DRV_RADEON
+ &backend_radeon,
+#endif
#ifdef DRV_ROCKCHIP
&backend_rockchip,
#endif
&backend_tegra,
#endif
&backend_udl,
- &backend_virtio_gpu,
+#ifdef DRV_VC4
+ &backend_vc4,
+#endif
+ &backend_vgem, &backend_virtio_gpu,
};
- for(i = 0; i < ARRAY_SIZE(backend_list); i++)
+ for (i = 0; i < ARRAY_SIZE(backend_list); i++)
if (!strcmp(drm_version->name, backend_list[i]->name)) {
drmFreeVersion(drm_version);
return backend_list[i];
struct driver *drv;
int ret;
- drv = (struct driver *) calloc(1, sizeof(*drv));
+ drv = (struct driver *)calloc(1, sizeof(*drv));
if (!drv)
return NULL;
drv->fd = fd;
drv->backend = drv_get_backend(fd);
- if (!drv->backend) {
- free(drv);
- return NULL;
- }
+ if (!drv->backend)
+ goto free_driver;
- if (pthread_mutex_init(&drv->table_lock, NULL)) {
- free(drv);
- return NULL;
- }
+ if (pthread_mutex_init(&drv->driver_lock, NULL))
+ goto free_driver;
drv->buffer_table = drmHashCreate();
- if (!drv->buffer_table) {
- free(drv);
- return NULL;
- }
+ if (!drv->buffer_table)
+ goto free_lock;
+
+ drv->mappings = drv_array_init(sizeof(struct mapping));
+ if (!drv->mappings)
+ goto free_buffer_table;
+
+ drv->combos = drv_array_init(sizeof(struct combination));
+ if (!drv->combos)
+ goto free_mappings;
if (drv->backend->init) {
ret = drv->backend->init(drv);
if (ret) {
- free(drv);
- return NULL;
+ drv_array_destroy(drv->combos);
+ goto free_mappings;
}
}
return drv;
+
+free_mappings:
+ drv_array_destroy(drv->mappings);
+free_buffer_table:
+ drmHashDestroy(drv->buffer_table);
+free_lock:
+ pthread_mutex_destroy(&drv->driver_lock);
+free_driver:
+ free(drv);
+ return NULL;
}
void drv_destroy(struct driver *drv)
{
+ pthread_mutex_lock(&drv->driver_lock);
+
if (drv->backend->close)
drv->backend->close(drv);
- pthread_mutex_destroy(&drv->table_lock);
drmHashDestroy(drv->buffer_table);
+ drv_array_destroy(drv->mappings);
+ drv_array_destroy(drv->combos);
+
+ pthread_mutex_unlock(&drv->driver_lock);
+ pthread_mutex_destroy(&drv->driver_lock);
free(drv);
}
return drv->fd;
}
-const char *
-drv_get_name(struct driver *drv)
+const char *drv_get_name(struct driver *drv)
{
return drv->backend->name;
}
-int drv_is_format_supported(struct driver *drv, drv_format_t format,
- uint64_t usage)
+struct combination *drv_get_combination(struct driver *drv, uint32_t format, uint64_t use_flags)
{
- unsigned int i;
+ struct combination *curr, *best;
- if (format == DRV_FORMAT_NONE || usage == DRV_BO_USE_NONE)
+ if (format == DRM_FORMAT_NONE || use_flags == BO_USE_NONE)
return 0;
- for (i = 0 ; i < ARRAY_SIZE(drv->backend->format_list); i++)
- {
- if (!drv->backend->format_list[i].format)
- break;
-
- if (drv->backend->format_list[i].format == format &&
- (drv->backend->format_list[i].usage & usage) == usage)
- return 1;
+ best = NULL;
+ uint32_t i;
+ for (i = 0; i < drv_array_size(drv->combos); i++) {
+ curr = drv_array_at_idx(drv->combos, i);
+ if ((format == curr->format) && use_flags == (curr->use_flags & use_flags))
+ if (!best || best->metadata.priority < curr->metadata.priority)
+ best = curr;
}
- return 0;
+ return best;
}
-struct bo *drv_bo_new(struct driver *drv, uint32_t width, uint32_t height,
- drv_format_t format)
+struct bo *drv_bo_new(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
+ uint64_t use_flags)
{
struct bo *bo;
- bo = (struct bo *) calloc(1, sizeof(*bo));
+ bo = (struct bo *)calloc(1, sizeof(*bo));
if (!bo)
return NULL;
bo->width = width;
bo->height = height;
bo->format = format;
+ bo->use_flags = use_flags;
bo->num_planes = drv_num_planes_from_format(format);
if (!bo->num_planes) {
return bo;
}
-struct bo *drv_bo_create(struct driver *drv, uint32_t width, uint32_t height,
- drv_format_t format, uint64_t flags)
+struct bo *drv_bo_create(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
+ uint64_t use_flags)
{
int ret;
size_t plane;
struct bo *bo;
- bo = drv_bo_new(drv, width, height, format);
+ bo = drv_bo_new(drv, width, height, format, use_flags);
if (!bo)
return NULL;
- ret = drv->backend->bo_create(bo, width, height, format, flags);
+ ret = drv->backend->bo_create(bo, width, height, format, use_flags);
if (ret) {
free(bo);
return NULL;
}
- pthread_mutex_lock(&drv->table_lock);
+ pthread_mutex_lock(&drv->driver_lock);
+
+ for (plane = 0; plane < bo->num_planes; plane++) {
+ if (plane > 0)
+ assert(bo->offsets[plane] >= bo->offsets[plane - 1]);
- for (plane = 0; plane < bo->num_planes; plane++)
drv_increment_reference_count(drv, bo, plane);
+ }
- pthread_mutex_unlock(&drv->table_lock);
+ pthread_mutex_unlock(&drv->driver_lock);
+
+ return bo;
+}
+
+struct bo *drv_bo_create_with_modifiers(struct driver *drv, uint32_t width, uint32_t height,
+ uint32_t format, const uint64_t *modifiers, uint32_t count)
+{
+ int ret;
+ size_t plane;
+ struct bo *bo;
+
+ if (!drv->backend->bo_create_with_modifiers) {
+ errno = ENOENT;
+ return NULL;
+ }
+
+ bo = drv_bo_new(drv, width, height, format, BO_USE_NONE);
+
+ if (!bo)
+ return NULL;
+
+ ret = drv->backend->bo_create_with_modifiers(bo, width, height, format, modifiers, count);
+
+ if (ret) {
+ free(bo);
+ return NULL;
+ }
+
+ pthread_mutex_lock(&drv->driver_lock);
+
+ for (plane = 0; plane < bo->num_planes; plane++) {
+ if (plane > 0)
+ assert(bo->offsets[plane] >= bo->offsets[plane - 1]);
+
+ drv_increment_reference_count(drv, bo, plane);
+ }
+
+ pthread_mutex_unlock(&drv->driver_lock);
return bo;
}
uintptr_t total = 0;
struct driver *drv = bo->drv;
- pthread_mutex_lock(&drv->table_lock);
+ pthread_mutex_lock(&drv->driver_lock);
for (plane = 0; plane < bo->num_planes; plane++)
drv_decrement_reference_count(drv, bo, plane);
for (plane = 0; plane < bo->num_planes; plane++)
total += drv_get_reference_count(drv, bo, plane);
- pthread_mutex_unlock(&drv->table_lock);
+ pthread_mutex_unlock(&drv->driver_lock);
- if (total == 0)
+ if (total == 0) {
+ assert(drv_mapping_destroy(bo) == 0);
bo->drv->backend->bo_destroy(bo);
+ }
free(bo);
}
-void *
-drv_bo_map(struct bo *bo)
+struct bo *drv_bo_import(struct driver *drv, struct drv_import_fd_data *data)
{
- assert(drv_num_buffers_per_bo(bo) == 1);
+ int ret;
+ size_t plane;
+ struct bo *bo;
+ off_t seek_end;
+
+ bo = drv_bo_new(drv, data->width, data->height, data->format, data->use_flags);
+
+ if (!bo)
+ return NULL;
+
+ ret = drv->backend->bo_import(bo, data);
+ if (ret) {
+ free(bo);
+ return NULL;
+ }
+
+ for (plane = 0; plane < bo->num_planes; plane++) {
+ bo->strides[plane] = data->strides[plane];
+ bo->offsets[plane] = data->offsets[plane];
+ bo->format_modifiers[plane] = data->format_modifiers[plane];
+
+ seek_end = lseek(data->fds[plane], 0, SEEK_END);
+ if (seek_end == (off_t)(-1)) {
+ drv_log("lseek() failed with %s\n", strerror(errno));
+ goto destroy_bo;
+ }
+
+ lseek(data->fds[plane], 0, SEEK_SET);
+ if (plane == bo->num_planes - 1 || data->offsets[plane + 1] == 0)
+ bo->sizes[plane] = seek_end - data->offsets[plane];
+ else
+ bo->sizes[plane] = data->offsets[plane + 1] - data->offsets[plane];
+
+ if ((int64_t)bo->offsets[plane] + bo->sizes[plane] > seek_end) {
+ drv_log("buffer size is too large.\n");
+ goto destroy_bo;
+ }
+
+ bo->total_size += bo->sizes[plane];
+ }
- if (!bo->map_data || bo->map_data == MAP_FAILED)
- bo->map_data = bo->drv->backend->bo_map(bo);
+ return bo;
- return bo->map_data;
+destroy_bo:
+ drv_bo_destroy(bo);
+ return NULL;
}
-int
-drv_bo_unmap(struct bo *bo)
+void *drv_bo_map(struct bo *bo, const struct rectangle *rect, uint32_t map_flags,
+ struct mapping **map_data, size_t plane)
{
- int ret = -1;
+ uint32_t i;
+ uint8_t *addr;
+ struct mapping mapping;
+
+ assert(rect->width >= 0);
+ assert(rect->height >= 0);
+ assert(rect->x + rect->width <= drv_bo_get_width(bo));
+ assert(rect->y + rect->height <= drv_bo_get_height(bo));
+ assert(BO_MAP_READ_WRITE & map_flags);
+ /* No CPU access for protected buffers. */
+ assert(!(bo->use_flags & BO_USE_PROTECTED));
+
+ memset(&mapping, 0, sizeof(mapping));
+ mapping.rect = *rect;
+ mapping.refcount = 1;
+
+ pthread_mutex_lock(&bo->drv->driver_lock);
+
+ for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
+ struct mapping *prior = (struct mapping *)drv_array_at_idx(bo->drv->mappings, i);
+ if (prior->vma->handle != bo->handles[plane].u32 ||
+ prior->vma->map_flags != map_flags)
+ continue;
+
+ if (rect->x != prior->rect.x || rect->y != prior->rect.y ||
+ rect->width != prior->rect.width || rect->height != prior->rect.height)
+ continue;
+
+ prior->refcount++;
+ *map_data = prior;
+ goto exact_match;
+ }
- assert(drv_num_buffers_per_bo(bo) == 1);
+ for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
+ struct mapping *prior = (struct mapping *)drv_array_at_idx(bo->drv->mappings, i);
+ if (prior->vma->handle != bo->handles[plane].u32 ||
+ prior->vma->map_flags != map_flags)
+ continue;
- if (bo->map_data && bo->map_data != MAP_FAILED)
- ret = munmap(bo->map_data, bo->total_size);
+ prior->vma->refcount++;
+ mapping.vma = prior->vma;
+ goto success;
+ }
- bo->map_data = NULL;
+ mapping.vma = calloc(1, sizeof(*mapping.vma));
+ memcpy(mapping.vma->map_strides, bo->strides, sizeof(mapping.vma->map_strides));
+ addr = bo->drv->backend->bo_map(bo, mapping.vma, plane, map_flags);
+ if (addr == MAP_FAILED) {
+ *map_data = NULL;
+ free(mapping.vma);
+ pthread_mutex_unlock(&bo->drv->driver_lock);
+ return MAP_FAILED;
+ }
- return ret;
+ mapping.vma->refcount = 1;
+ mapping.vma->addr = addr;
+ mapping.vma->handle = bo->handles[plane].u32;
+ mapping.vma->map_flags = map_flags;
+
+success:
+ *map_data = drv_array_append(bo->drv->mappings, &mapping);
+exact_match:
+ drv_bo_invalidate(bo, *map_data);
+ addr = (uint8_t *)((*map_data)->vma->addr);
+ addr += drv_bo_get_plane_offset(bo, plane);
+ pthread_mutex_unlock(&bo->drv->driver_lock);
+ return (void *)addr;
}
-struct bo *drv_bo_import(struct driver *drv, struct drv_import_fd_data *data)
+int drv_bo_unmap(struct bo *bo, struct mapping *mapping)
{
- int ret;
- size_t plane;
- struct bo *bo;
- struct drm_prime_handle prime_handle;
+ uint32_t i;
+ int ret = 0;
- bo = drv_bo_new(drv, data->width, data->height, data->format);
+ pthread_mutex_lock(&bo->drv->driver_lock);
- if (!bo)
- return NULL;
+ if (--mapping->refcount)
+ goto out;
- for (plane = 0; plane < bo->num_planes; plane++) {
+ if (!--mapping->vma->refcount) {
+ ret = bo->drv->backend->bo_unmap(bo, mapping->vma);
+ free(mapping->vma);
+ }
- memset(&prime_handle, 0, sizeof(prime_handle));
- prime_handle.fd = data->fds[plane];
+ for (i = 0; i < drv_array_size(bo->drv->mappings); i++) {
+ if (mapping == (struct mapping *)drv_array_at_idx(bo->drv->mappings, i)) {
+ drv_array_remove(bo->drv->mappings, i);
+ break;
+ }
+ }
- ret = drmIoctl(drv->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE,
- &prime_handle);
+out:
+ pthread_mutex_unlock(&bo->drv->driver_lock);
+ return ret;
+}
- if (ret) {
- fprintf(stderr, "drv: DRM_IOCTL_PRIME_FD_TO_HANDLE failed "
- "(fd=%u)\n", prime_handle.fd);
+int drv_bo_invalidate(struct bo *bo, struct mapping *mapping)
+{
+ int ret = 0;
- if (plane > 0) {
- bo->num_planes = plane;
- drv_bo_destroy(bo);
- } else {
- free(bo);
- }
+ assert(mapping);
+ assert(mapping->vma);
+ assert(mapping->refcount > 0);
+ assert(mapping->vma->refcount > 0);
- return NULL;
- }
+ if (bo->drv->backend->bo_invalidate)
+ ret = bo->drv->backend->bo_invalidate(bo, mapping);
- bo->handles[plane].u32 = prime_handle.handle;
- bo->strides[plane] = data->strides[plane];
- bo->offsets[plane] = data->offsets[plane];
- bo->sizes[plane] = data->sizes[plane];
+ return ret;
+}
- pthread_mutex_lock(&drv->table_lock);
- drv_increment_reference_count(drv, bo, plane);
- pthread_mutex_unlock(&drv->table_lock);
- }
+int drv_bo_flush_or_unmap(struct bo *bo, struct mapping *mapping)
+{
+ int ret = 0;
- return bo;
+ assert(mapping);
+ assert(mapping->vma);
+ assert(mapping->refcount > 0);
+ assert(mapping->vma->refcount > 0);
+ assert(!(bo->use_flags & BO_USE_PROTECTED));
+
+ if (bo->drv->backend->bo_flush)
+ ret = bo->drv->backend->bo_flush(bo, mapping);
+ else
+ ret = drv_bo_unmap(bo, mapping);
+
+ return ret;
}
uint32_t drv_bo_get_width(struct bo *bo)
int ret, fd;
assert(plane < bo->num_planes);
- ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32,
- DRM_CLOEXEC | DRM_RDWR, &fd);
+ ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC | DRM_RDWR, &fd);
- return (ret) ? ret : fd;
+ // Older DRM implementations blocked DRM_RDWR, but gave a read/write mapping anyways
+ if (ret)
+ ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC, &fd);
+ return (ret) ? ret : fd;
}
uint32_t drv_bo_get_plane_offset(struct bo *bo, size_t plane)
uint64_t drv_bo_get_plane_format_modifier(struct bo *bo, size_t plane)
{
- assert(plane < bo->num_planes);
+ assert(plane < bo->num_planes);
return bo->format_modifiers[plane];
}
-drv_format_t drv_resolve_format(struct driver *drv, drv_format_t format)
+uint32_t drv_bo_get_format(struct bo *bo)
+{
+ return bo->format;
+}
+
+uint32_t drv_resolve_format(struct driver *drv, uint32_t format, uint64_t use_flags)
{
if (drv->backend->resolve_format)
- return drv->backend->resolve_format(format);
+ return drv->backend->resolve_format(format, use_flags);
return format;
}
+
+uint32_t drv_num_buffers_per_bo(struct bo *bo)
+{
+ uint32_t count = 0;
+ size_t plane, p;
+
+ for (plane = 0; plane < bo->num_planes; plane++) {
+ for (p = 0; p < plane; p++)
+ if (bo->handles[p].u32 == bo->handles[plane].u32)
+ break;
+ if (p == plane)
+ count++;
+ }
+
+ return count;
+}
+
+void drv_log_prefix(const char *prefix, const char *file, int line, const char *format, ...)
+{
+ char buf[50];
+ snprintf(buf, sizeof(buf), "[%s:%s(%d)]", prefix, basename(file), line);
+
+ va_list args;
+ va_start(args, format);
+#ifdef __ANDROID__
+ __android_log_vprint(ANDROID_LOG_ERROR, buf, format, args);
+#else
+ fprintf(stderr, "%s ", buf);
+ vfprintf(stderr, format, args);
+#endif
+ va_end(args);
+}
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