#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_fourcc.h>
+#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_vblank.h>
return 0;
}
+static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
+ .destroy = drm_gem_fb_destroy,
+ .create_handle = drm_gem_fb_create_handle,
+};
+
static void
-nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
+nouveau_decode_mod(struct nouveau_drm *drm,
+ uint64_t modifier,
+ uint32_t *tile_mode,
+ uint8_t *kind)
+{
+ BUG_ON(!tile_mode || !kind);
+
+ if (modifier == DRM_FORMAT_MOD_LINEAR) {
+ /* tile_mode will not be used in this case */
+ *tile_mode = 0;
+ *kind = 0;
+ } else {
+ /*
+ * Extract the block height and kind from the corresponding
+ * modifier fields. See drm_fourcc.h for details.
+ */
+ *tile_mode = (uint32_t)(modifier & 0xF);
+ *kind = (uint8_t)((modifier >> 12) & 0xFF);
+
+ if (drm->client.device.info.chipset >= 0xc0)
+ *tile_mode <<= 4;
+ }
+}
+
+void
+nouveau_framebuffer_get_layout(struct drm_framebuffer *fb,
+ uint32_t *tile_mode,
+ uint8_t *kind)
{
- struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
+ if (fb->flags & DRM_MODE_FB_MODIFIERS) {
+ struct nouveau_drm *drm = nouveau_drm(fb->dev);
- if (fb->nvbo)
- drm_gem_object_put(&fb->nvbo->bo.base);
+ nouveau_decode_mod(drm, fb->modifier, tile_mode, kind);
+ } else {
+ const struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
- drm_framebuffer_cleanup(drm_fb);
- kfree(fb);
+ *tile_mode = nvbo->mode;
+ *kind = nvbo->kind;
+ }
}
static int
-nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
- struct drm_file *file_priv,
- unsigned int *handle)
+nouveau_validate_decode_mod(struct nouveau_drm *drm,
+ uint64_t modifier,
+ uint32_t *tile_mode,
+ uint8_t *kind)
{
- struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
+ struct nouveau_display *disp = nouveau_display(drm->dev);
+ int mod;
+
+ if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
+ return -EINVAL;
+ }
- return drm_gem_handle_create(file_priv, &fb->nvbo->bo.base, handle);
+ BUG_ON(!disp->format_modifiers);
+
+ for (mod = 0;
+ (disp->format_modifiers[mod] != DRM_FORMAT_MOD_INVALID) &&
+ (disp->format_modifiers[mod] != modifier);
+ mod++);
+
+ if (disp->format_modifiers[mod] == DRM_FORMAT_MOD_INVALID)
+ return -EINVAL;
+
+ nouveau_decode_mod(drm, modifier, tile_mode, kind);
+
+ return 0;
}
-static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
- .destroy = nouveau_user_framebuffer_destroy,
- .create_handle = nouveau_user_framebuffer_create_handle,
-};
+static inline uint32_t
+nouveau_get_width_in_blocks(uint32_t stride)
+{
+ /* GOBs per block in the x direction is always one, and GOBs are
+ * 64 bytes wide
+ */
+ static const uint32_t log_block_width = 6;
+
+ return (stride + (1 << log_block_width) - 1) >> log_block_width;
+}
+
+static inline uint32_t
+nouveau_get_height_in_blocks(struct nouveau_drm *drm,
+ uint32_t height,
+ uint32_t log_block_height_in_gobs)
+{
+ uint32_t log_gob_height;
+ uint32_t log_block_height;
+
+ BUG_ON(drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA);
+
+ if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI)
+ log_gob_height = 2;
+ else
+ log_gob_height = 3;
+
+ log_block_height = log_block_height_in_gobs + log_gob_height;
+
+ return (height + (1 << log_block_height) - 1) >> log_block_height;
+}
+
+static int
+nouveau_check_bl_size(struct nouveau_drm *drm, struct nouveau_bo *nvbo,
+ uint32_t offset, uint32_t stride, uint32_t h,
+ uint32_t tile_mode)
+{
+ uint32_t gob_size, bw, bh;
+ uint64_t bl_size;
+
+ BUG_ON(drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA);
+
+ if (drm->client.device.info.chipset >= 0xc0) {
+ if (tile_mode & 0xF)
+ return -EINVAL;
+ tile_mode >>= 4;
+ }
+
+ if (tile_mode & 0xFFFFFFF0)
+ return -EINVAL;
+
+ if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI)
+ gob_size = 256;
+ else
+ gob_size = 512;
+
+ bw = nouveau_get_width_in_blocks(stride);
+ bh = nouveau_get_height_in_blocks(drm, h, tile_mode);
+
+ bl_size = bw * bh * (1 << tile_mode) * gob_size;
+
+ DRM_DEBUG_KMS("offset=%u stride=%u h=%u tile_mode=0x%02x bw=%u bh=%u gob_size=%u bl_size=%llu size=%lu\n",
+ offset, stride, h, tile_mode, bw, bh, gob_size, bl_size,
+ nvbo->bo.mem.size);
+
+ if (bl_size + offset > nvbo->bo.mem.size)
+ return -ERANGE;
+
+ return 0;
+}
int
nouveau_framebuffer_new(struct drm_device *dev,
const struct drm_mode_fb_cmd2 *mode_cmd,
- struct nouveau_bo *nvbo,
- struct nouveau_framebuffer **pfb)
+ struct drm_gem_object *gem,
+ struct drm_framebuffer **pfb)
{
struct nouveau_drm *drm = nouveau_drm(dev);
- struct nouveau_framebuffer *fb;
+ struct nouveau_bo *nvbo = nouveau_gem_object(gem);
+ struct drm_framebuffer *fb;
+ const struct drm_format_info *info;
+ unsigned int width, height, i;
+ uint32_t tile_mode;
+ uint8_t kind;
int ret;
/* YUV overlays have special requirements pre-NV50 */
return -EINVAL;
}
+ if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) {
+ if (nouveau_validate_decode_mod(drm, mode_cmd->modifier[0],
+ &tile_mode, &kind)) {
+ DRM_DEBUG_KMS("Unsupported modifier: 0x%llx\n",
+ mode_cmd->modifier[0]);
+ return -EINVAL;
+ }
+ } else {
+ tile_mode = nvbo->mode;
+ kind = nvbo->kind;
+ }
+
+ info = drm_get_format_info(dev, mode_cmd);
+
+ for (i = 0; i < info->num_planes; i++) {
+ width = drm_format_info_plane_width(info,
+ mode_cmd->width,
+ i);
+ height = drm_format_info_plane_height(info,
+ mode_cmd->height,
+ i);
+
+ if (kind) {
+ ret = nouveau_check_bl_size(drm, nvbo,
+ mode_cmd->offsets[i],
+ mode_cmd->pitches[i],
+ height, tile_mode);
+ if (ret)
+ return ret;
+ } else {
+ uint32_t size = mode_cmd->pitches[i] * height;
+
+ if (size + mode_cmd->offsets[i] > nvbo->bo.mem.size)
+ return -ERANGE;
+ }
+ }
+
if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
return -ENOMEM;
- drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
- fb->nvbo = nvbo;
+ drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
+ fb->obj[0] = gem;
- ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs);
+ ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
if (ret)
kfree(fb);
return ret;
struct drm_file *file_priv,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
- struct nouveau_framebuffer *fb;
- struct nouveau_bo *nvbo;
+ struct drm_framebuffer *fb;
struct drm_gem_object *gem;
int ret;
gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
if (!gem)
return ERR_PTR(-ENOENT);
- nvbo = nouveau_gem_object(gem);
- ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb);
+ ret = nouveau_framebuffer_new(dev, mode_cmd, gem, &fb);
if (ret == 0)
- return &fb->base;
+ return fb;
drm_gem_object_put(gem);
return ERR_PTR(ret);
dev->mode_config.preferred_depth = 24;
dev->mode_config.prefer_shadow = 1;
+ dev->mode_config.allow_fb_modifiers = true;
if (drm->client.device.info.chipset < 0x11)
dev->mode_config.async_page_flip = false;
git.samba.org / sfrench / cifs-2.6.git / blobdiff