#include <assert.h>
#include <errno.h>
#include <fcntl.h>
-#include <pthread.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "drv_priv.h"
#include "helpers.h"
#include "util.h"
+#include "i915_private.h"
#ifdef DRV_AMDGPU
extern struct backend backend_amdgpu;
if (!drv->backend)
goto free_driver;
- if (pthread_mutex_init(&drv->driver_lock, NULL))
- goto free_driver;
-
drv->buffer_table = drmHashCreate();
if (!drv->buffer_table)
- goto free_lock;
+ goto free_driver;
drv->map_table = drmHashCreate();
if (!drv->map_table)
}
}
+ ATOMIC_VAR_INIT(drv->driver_lock);
+
return drv;
free_map_table:
drmHashDestroy(drv->map_table);
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);
+ ATOMIC_LOCK(&drv->driver_lock);
if (drv->backend->close)
drv->backend->close(drv);
free(drv->combos.data);
- pthread_mutex_unlock(&drv->driver_lock);
- pthread_mutex_destroy(&drv->driver_lock);
+ ATOMIC_UNLOCK(&drv->driver_lock);
free(drv);
}
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))
+ 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);
return NULL;
}
- pthread_mutex_lock(&drv->driver_lock);
+ ATOMIC_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->driver_lock);
+ ATOMIC_UNLOCK(&drv->driver_lock);
return bo;
}
return NULL;
}
- pthread_mutex_lock(&drv->driver_lock);
+ ATOMIC_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->driver_lock);
+ ATOMIC_UNLOCK(&drv->driver_lock);
return bo;
}
{
size_t plane;
uintptr_t total = 0;
- size_t map_count = 0;
struct driver *drv = bo->drv;
- pthread_mutex_lock(&drv->driver_lock);
+ ATOMIC_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);
+ ATOMIC_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_map_info_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)) {
+ fprintf(stderr, "drv: 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) {
+ fprintf(stderr, "drv: 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)
+ uint32_t map_flags, struct map_info **map_data, size_t plane)
{
void *ptr;
uint8_t *addr;
size_t offset;
struct map_info *data;
- int prot;
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(BO_MAP_READ_WRITE & map_flags);
+ /* No CPU access for protected buffers. */
+ assert(!(bo->use_flags & BO_USE_PROTECTED));
- pthread_mutex_lock(&bo->drv->driver_lock);
+ ATOMIC_LOCK(&bo->drv->driver_lock);
if (!drmHashLookup(bo->drv->map_table, bo->handles[plane].u32, &ptr)) {
data = (struct map_info *)ptr;
+ /* TODO(gsingh): support mapping same buffer with different flags. */
+ assert(data->map_flags == map_flags);
data->refcount++;
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);
+ addr = bo->drv->backend->bo_map(bo, data, plane, map_flags);
if (addr == MAP_FAILED) {
*map_data = NULL;
free(data);
- pthread_mutex_unlock(&bo->drv->driver_lock);
+ ATOMIC_UNLOCK(&bo->drv->driver_lock);
return MAP_FAILED;
}
data->refcount = 1;
data->addr = addr;
data->handle = bo->handles[plane].u32;
+ data->map_flags = map_flags;
drmHashInsert(bo->drv->map_table, bo->handles[plane].u32, (void *)data);
success:
+ drv_bo_invalidate(bo, data);
*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;
- pthread_mutex_unlock(&bo->drv->driver_lock);
+ ATOMIC_UNLOCK(&bo->drv->driver_lock);
return (void *)addr;
}
int drv_bo_unmap(struct bo *bo, struct map_info *data)
{
- int ret = 0;
-
- assert(data);
- assert(data->refcount >= 0);
+ int ret = drv_bo_flush(bo, data);
+ if (ret)
+ return ret;
- pthread_mutex_lock(&bo->drv->driver_lock);
+ ATOMIC_LOCK(&bo->drv->driver_lock);
if (!--data->refcount) {
ret = bo->drv->backend->bo_unmap(bo, data);
free(data);
}
- pthread_mutex_unlock(&bo->drv->driver_lock);
+ ATOMIC_UNLOCK(&bo->drv->driver_lock);;
+
+ return ret;
+}
+
+int drv_bo_invalidate(struct bo *bo, struct map_info *data)
+{
+ int ret = 0;
+ assert(data);
+ assert(data->refcount >= 0);
+
+ if (bo->drv->backend->bo_invalidate)
+ ret = bo->drv->backend->bo_invalidate(bo, data);
+
+ return ret;
+}
+
+int drv_bo_flush(struct bo *bo, struct map_info *data)
+{
+ int ret = 0;
+ assert(data);
+ assert(data->refcount >= 0);
+ assert(!(bo->use_flags & BO_USE_PROTECTED));
+
+ if (bo->drv->backend->bo_flush)
+ ret = bo->drv->backend->bo_flush(bo, data);
return ret;
}
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);
- 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);
+ return i915_private_num_planes_from_format(format);
}
uint32_t drv_num_buffers_per_bo(struct bo *bo)
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