#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
-extern struct backend backend_nouveau;
+#ifdef DRV_MSM
+extern const struct backend backend_msm;
+#endif
+extern const struct backend backend_nouveau;
#ifdef DRV_RADEON
-extern struct backend backend_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 const struct backend backend_udl;
#ifdef DRV_VC4
-extern struct backend backend_vc4;
+extern const struct backend backend_vc4;
#endif
-extern struct backend backend_vgem;
-extern struct backend backend_virtio_gpu;
+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,
+ &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,
if (!drv->buffer_table)
goto free_lock;
- drv->map_table = drmHashCreate();
- if (!drv->map_table)
+ drv->mappings = drv_array_init(sizeof(struct mapping));
+ if (!drv->mappings)
goto free_buffer_table;
- /* Start with a power of 2 number of allocations. */
- drv->combos.allocations = 2;
- drv->combos.size = 0;
-
- drv->combos.data = calloc(drv->combos.allocations, sizeof(struct combination));
- if (!drv->combos.data)
- goto free_map_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->combos.data);
- goto free_map_table;
+ drv_array_destroy(drv->combos);
+ goto free_mappings;
}
}
return drv;
-free_map_table:
- drmHashDestroy(drv->map_table);
+free_mappings:
+ drv_array_destroy(drv->mappings);
free_buffer_table:
drmHashDestroy(drv->buffer_table);
free_lock:
drv->backend->close(drv);
drmHashDestroy(drv->buffer_table);
- drmHashDestroy(drv->map_table);
-
- free(drv->combos.data);
+ drv_array_destroy(drv->mappings);
+ drv_array_destroy(drv->combos);
pthread_mutex_unlock(&drv->driver_lock);
pthread_mutex_destroy(&drv->driver_lock);
return drv->backend->name;
}
-struct combination *drv_get_combination(struct driver *drv, uint32_t format, uint64_t usage)
+struct combination *drv_get_combination(struct driver *drv, uint32_t format, uint64_t use_flags)
{
struct combination *curr, *best;
- if (format == DRM_FORMAT_NONE || usage == BO_USE_NONE)
+ if (format == DRM_FORMAT_NONE || use_flags == BO_USE_NONE)
return 0;
best = NULL;
uint32_t i;
- for (i = 0; i < drv->combos.size; i++) {
- curr = &drv->combos.data[i];
- if ((format == curr->format) && usage == (curr->usage & usage))
+ 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;
}
}
struct bo *drv_bo_new(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
- uint64_t flags)
+ uint64_t use_flags)
{
struct bo *bo;
bo->width = width;
bo->height = height;
bo->format = format;
- bo->flags = flags;
+ bo->use_flags = use_flags;
bo->num_planes = drv_num_planes_from_format(format);
if (!bo->num_planes) {
}
struct bo *drv_bo_create(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
- uint64_t flags)
+ uint64_t use_flags)
{
int ret;
size_t plane;
struct bo *bo;
- bo = drv_bo_new(drv, width, height, format, flags);
+ 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);
pthread_mutex_lock(&drv->driver_lock);
- for (plane = 0; plane < bo->num_planes; plane++)
+ 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);
pthread_mutex_lock(&drv->driver_lock);
- for (plane = 0; plane < bo->num_planes; plane++)
+ 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);
{
size_t plane;
uintptr_t total = 0;
- size_t map_count = 0;
struct driver *drv = bo->drv;
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++) {
- void *ptr;
-
+ for (plane = 0; plane < bo->num_planes; plane++)
total += drv_get_reference_count(drv, bo, plane);
- map_count += !drmHashLookup(bo->drv->map_table, bo->handles[plane].u32, &ptr);
- }
pthread_mutex_unlock(&drv->driver_lock);
if (total == 0) {
- /*
- * If we leak a reference to the GEM handle being freed here in the mapping table,
- * we risk using the mapping table entry later for a completely different BO that
- * gets the same handle. (See b/38250067.)
- */
- assert(!map_count);
+ assert(drv_mapping_destroy(bo) == 0);
bo->drv->backend->bo_destroy(bo);
}
int ret;
size_t plane;
struct bo *bo;
+ off_t seek_end;
- bo = drv_bo_new(drv, data->width, data->height, data->format, data->flags);
+ bo = drv_bo_new(drv, data->width, data->height, data->format, data->use_flags);
if (!bo)
return NULL;
bo->strides[plane] = data->strides[plane];
bo->offsets[plane] = data->offsets[plane];
bo->format_modifiers[plane] = data->format_modifiers[plane];
- if (plane == bo->num_planes - 1 || data->offsets[plane + 1] == 0) {
- bo->sizes[plane] =
- lseek(data->fds[plane], 0, SEEK_END) - data->offsets[plane];
- lseek(data->fds[plane], 0, SEEK_SET);
- } else {
+
+ 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];
}
return bo;
+
+destroy_bo:
+ drv_bo_destroy(bo);
+ return NULL;
}
-void *drv_bo_map(struct bo *bo, uint32_t x, uint32_t y, uint32_t width, uint32_t height,
- uint32_t flags, struct map_info **map_data, size_t plane)
+void *drv_bo_map(struct bo *bo, const struct rectangle *rect, uint32_t map_flags,
+ struct mapping **map_data, size_t plane)
{
- void *ptr;
+ uint32_t i;
uint8_t *addr;
- size_t offset;
- struct map_info *data;
- int prot;
+ struct mapping mapping;
- assert(width > 0);
- assert(height > 0);
- assert(x + width <= drv_bo_get_width(bo));
- assert(y + height <= drv_bo_get_height(bo));
- assert(BO_TRANSFER_READ_WRITE & flags);
+ 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);
- if (!drmHashLookup(bo->drv->map_table, bo->handles[plane].u32, &ptr)) {
- data = (struct map_info *)ptr;
- data->refcount++;
+ 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;
+ }
+
+ 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;
+
+ prior->vma->refcount++;
+ mapping.vma = prior->vma;
goto success;
}
- data = calloc(1, sizeof(*data));
- prot = BO_TRANSFER_WRITE & flags ? PROT_WRITE | PROT_READ : PROT_READ;
- addr = bo->drv->backend->bo_map(bo, data, plane, prot);
+ mapping.vma = calloc(1, sizeof(*mapping.vma));
+ addr = bo->drv->backend->bo_map(bo, mapping.vma, plane, map_flags);
if (addr == MAP_FAILED) {
*map_data = NULL;
- free(data);
+ free(mapping.vma);
pthread_mutex_unlock(&bo->drv->driver_lock);
return MAP_FAILED;
}
- data->refcount = 1;
- data->addr = addr;
- data->handle = bo->handles[plane].u32;
- drmHashInsert(bo->drv->map_table, bo->handles[plane].u32, (void *)data);
+ mapping.vma->refcount = 1;
+ mapping.vma->addr = addr;
+ mapping.vma->handle = bo->handles[plane].u32;
+ mapping.vma->map_flags = map_flags;
success:
- *map_data = data;
- offset = drv_bo_get_plane_stride(bo, plane) * y;
- offset += drv_stride_from_format(bo->format, x, plane);
- addr = (uint8_t *)data->addr;
- addr += drv_bo_get_plane_offset(bo, plane) + offset;
+ *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;
}
-int drv_bo_unmap(struct bo *bo, struct map_info *data)
+int drv_bo_unmap(struct bo *bo, struct mapping *mapping)
{
+ uint32_t i;
int ret = 0;
- assert(data);
- assert(data->refcount >= 0);
-
pthread_mutex_lock(&bo->drv->driver_lock);
- if (!--data->refcount) {
- ret = bo->drv->backend->bo_unmap(bo, data);
- drmHashDelete(bo->drv->map_table, data->handle);
- free(data);
+ if (--mapping->refcount)
+ goto out;
+
+ if (!--mapping->vma->refcount) {
+ ret = bo->drv->backend->bo_unmap(bo, mapping->vma);
+ free(mapping->vma);
+ }
+
+ 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;
+ }
}
+out:
pthread_mutex_unlock(&bo->drv->driver_lock);
+ return ret;
+}
+
+int drv_bo_invalidate(struct bo *bo, struct mapping *mapping)
+{
+ int ret = 0;
+
+ assert(mapping);
+ assert(mapping->vma);
+ assert(mapping->refcount > 0);
+ assert(mapping->vma->refcount > 0);
+
+ if (bo->drv->backend->bo_invalidate)
+ ret = bo->drv->backend->bo_invalidate(bo, mapping);
+
+ return ret;
+}
+
+int drv_bo_flush_or_unmap(struct bo *bo, struct mapping *mapping)
+{
+ int ret = 0;
+
+ 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;
}
ret = drmPrimeHandleToFD(bo->drv->fd, bo->handles[plane].u32, DRM_CLOEXEC | DRM_RDWR, &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;
}
return bo->format;
}
-uint32_t drv_resolve_format(struct driver *drv, uint32_t format, uint64_t usage)
+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, usage);
+ return drv->backend->resolve_format(format, use_flags);
return format;
}
return 3;
}
- fprintf(stderr, "drv: UNKNOWN FORMAT %d\n", format);
+ drv_log("UNKNOWN FORMAT %d\n", format);
return 0;
}
-uint32_t drv_size_from_format(uint32_t format, uint32_t stride, uint32_t height, size_t plane)
-{
- assert(plane < drv_num_planes_from_format(format));
- uint32_t vertical_subsampling;
-
- switch (format) {
- case DRM_FORMAT_NV12:
- case DRM_FORMAT_YVU420:
- case DRM_FORMAT_YVU420_ANDROID:
- vertical_subsampling = (plane == 0) ? 1 : 2;
- break;
- default:
- vertical_subsampling = 1;
- }
-
- return stride * DIV_ROUND_UP(height, vertical_subsampling);
-}
-
uint32_t drv_num_buffers_per_bo(struct bo *bo)
{
uint32_t count = 0;
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);
+}