From b097b80bc919fca5f45663c20722e57792a093ea Mon Sep 17 00:00:00 2001 From: Keqian Zhu Date: Mon, 12 Jun 2023 10:13:58 +0800 Subject: virtio-gpu: Optimize 2D resource data transfer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The following points sometimes can reduce much data to copy: 1. When width matches, we can transfer data with one call of iov_to_buf(). 2. Only the required height need to transfer, not whole image. Signed-off-by: Keqian Zhu Reviewed-by: Marc-André Lureau Message-Id: <20230612021358.25068-1-zhukeqian1@huawei.com> --- hw/display/virtio-gpu.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) (limited to 'hw/display/virtio-gpu.c') diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 66cddd94d9..af31018ab0 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -438,11 +438,11 @@ static void virtio_gpu_transfer_to_host_2d(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { struct virtio_gpu_simple_resource *res; - int h; + int h, bpp; uint32_t src_offset, dst_offset, stride; - int bpp; pixman_format_code_t format; struct virtio_gpu_transfer_to_host_2d t2d; + void *img_data; VIRTIO_GPU_FILL_CMD(t2d); virtio_gpu_t2d_bswap(&t2d); @@ -471,23 +471,23 @@ static void virtio_gpu_transfer_to_host_2d(VirtIOGPU *g, format = pixman_image_get_format(res->image); bpp = DIV_ROUND_UP(PIXMAN_FORMAT_BPP(format), 8); stride = pixman_image_get_stride(res->image); + img_data = pixman_image_get_data(res->image); - if (t2d.offset || t2d.r.x || t2d.r.y || - t2d.r.width != pixman_image_get_width(res->image)) { - void *img_data = pixman_image_get_data(res->image); + if (t2d.r.x || t2d.r.width != pixman_image_get_width(res->image)) { for (h = 0; h < t2d.r.height; h++) { src_offset = t2d.offset + stride * h; dst_offset = (t2d.r.y + h) * stride + (t2d.r.x * bpp); iov_to_buf(res->iov, res->iov_cnt, src_offset, - (uint8_t *)img_data - + dst_offset, t2d.r.width * bpp); + (uint8_t *)img_data + dst_offset, + t2d.r.width * bpp); } } else { - iov_to_buf(res->iov, res->iov_cnt, 0, - pixman_image_get_data(res->image), - pixman_image_get_stride(res->image) - * pixman_image_get_height(res->image)); + src_offset = t2d.offset; + dst_offset = t2d.r.y * stride + t2d.r.x * bpp; + iov_to_buf(res->iov, res->iov_cnt, src_offset, + (uint8_t *)img_data + dst_offset, + stride * t2d.r.height); } } -- cgit 1.4.1 From 34e29d85a7734802317c4cac9ad52b10d461c1dc Mon Sep 17 00:00:00 2001 From: Vivek Kasireddy Date: Thu, 22 Jun 2023 23:04:54 -0700 Subject: virtio-gpu: Make non-gl display updates work again when blob=true MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In the case where the console does not have gl capability, and if blob is set to true, make sure that the display updates still work. Commit e86a93f55463 accidentally broke this by misplacing the return statement (in resource_flush) causing the updates to be silently ignored. Fixes: e86a93f55463 ("virtio-gpu: splitting one extended mode guest fb into n-scanouts") Cc: Gerd Hoffmann Cc: Marc-André Lureau Cc: Dongwon Kim Signed-off-by: Vivek Kasireddy Reviewed-by: Marc-André Lureau Message-ID: <20230623060454.3749910-1-vivek.kasireddy@intel.com> --- hw/display/virtio-gpu.c | 27 ++++++++++++++++++++++----- 1 file changed, 22 insertions(+), 5 deletions(-) (limited to 'hw/display/virtio-gpu.c') diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index af31018ab0..506cda944d 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -498,6 +498,8 @@ static void virtio_gpu_resource_flush(VirtIOGPU *g, struct virtio_gpu_resource_flush rf; struct virtio_gpu_scanout *scanout; pixman_region16_t flush_region; + bool within_bounds = false; + bool update_submitted = false; int i; VIRTIO_GPU_FILL_CMD(rf); @@ -518,13 +520,28 @@ static void virtio_gpu_resource_flush(VirtIOGPU *g, rf.r.x < scanout->x + scanout->width && rf.r.x + rf.r.width >= scanout->x && rf.r.y < scanout->y + scanout->height && - rf.r.y + rf.r.height >= scanout->y && - console_has_gl(scanout->con)) { - dpy_gl_update(scanout->con, 0, 0, scanout->width, - scanout->height); + rf.r.y + rf.r.height >= scanout->y) { + within_bounds = true; + + if (console_has_gl(scanout->con)) { + dpy_gl_update(scanout->con, 0, 0, scanout->width, + scanout->height); + update_submitted = true; + } } } - return; + + if (update_submitted) { + return; + } + if (!within_bounds) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: flush bounds outside scanouts" + " bounds for flush %d: %d %d %d %d\n", + __func__, rf.resource_id, rf.r.x, rf.r.y, + rf.r.width, rf.r.height); + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; + return; + } } if (!res->blob && -- cgit 1.4.1 From 7b41ca8d913cdd91d33d74d906dd5d7bd9f41045 Mon Sep 17 00:00:00 2001 From: Dongwon Kim Date: Mon, 26 Jun 2023 17:34:53 -0700 Subject: virtio-gpu: OUT_OF_MEMORY if failing to create udmabuf MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Respond with VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY if it fails to create an udmabuf for the blob resource. v2: consolidated return statments and removed an unnecessary style change Cc: Gerd Hoffmann Cc: Marc-André Lureau Cc: Vivek Kasireddy Signed-off-by: Dongwon Kim Reviewed-by: Marc-André Lureau Message-ID: <20230627003453.5321-1-dongwon.kim@intel.com> --- hw/display/virtio-gpu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'hw/display/virtio-gpu.c') diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 506cda944d..1f8a5b16c6 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -651,8 +651,10 @@ static void virtio_gpu_do_set_scanout(VirtIOGPU *g, if (console_has_gl(scanout->con)) { if (!virtio_gpu_update_dmabuf(g, scanout_id, res, fb, r)) { virtio_gpu_update_scanout(g, scanout_id, res, r); - return; + } else { + *error = VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY; } + return; } data = res->blob; -- cgit 1.4.1 From 9462ff4695aa0d086fd63f7f2efafe5a05f2a243 Mon Sep 17 00:00:00 2001 From: Marc-André Lureau Date: Tue, 6 Jun 2023 15:56:47 +0400 Subject: virtio-gpu/win32: allocate shareable 2d resources/images MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Allocate pixman bits for scanouts with qemu_win32_map_alloc() so we can set a shareable handle on the associated display surface. Note: when bits are provided to pixman_image_create_bits(), you must also give the rowstride (the argument is ignored when bits is NULL) Signed-off-by: Marc-André Lureau Message-Id: <20230606115658.677673-11-marcandre.lureau@redhat.com> --- hw/display/virtio-gpu.c | 46 +++++++++++++++++++++++++++++++++++++++--- include/hw/virtio/virtio-gpu.h | 3 +++ 2 files changed, 46 insertions(+), 3 deletions(-) (limited to 'hw/display/virtio-gpu.c') diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 1f8a5b16c6..347e17d490 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -258,6 +258,16 @@ static uint32_t calc_image_hostmem(pixman_format_code_t pformat, return height * stride; } +#ifdef WIN32 +static void +win32_pixman_image_destroy(pixman_image_t *image, void *data) +{ + HANDLE handle = data; + + qemu_win32_map_free(pixman_image_get_data(image), handle, &error_warn); +} +#endif + static void virtio_gpu_resource_create_2d(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { @@ -304,12 +314,27 @@ static void virtio_gpu_resource_create_2d(VirtIOGPU *g, res->hostmem = calc_image_hostmem(pformat, c2d.width, c2d.height); if (res->hostmem + g->hostmem < g->conf_max_hostmem) { + void *bits = NULL; +#ifdef WIN32 + bits = qemu_win32_map_alloc(res->hostmem, &res->handle, &error_warn); + if (!bits) { + goto end; + } +#endif res->image = pixman_image_create_bits(pformat, c2d.width, c2d.height, - NULL, 0); + bits, res->hostmem / c2d.height); +#ifdef WIN32 + if (res->image) { + pixman_image_set_destroy_function(res->image, win32_pixman_image_destroy, res->handle); + } +#endif } +#ifdef WIN32 +end: +#endif if (!res->image) { qemu_log_mask(LOG_GUEST_ERROR, "%s: resource creation failed %d %d %d\n", @@ -685,6 +710,9 @@ static void virtio_gpu_do_set_scanout(VirtIOGPU *g, *error = VIRTIO_GPU_RESP_ERR_UNSPEC; return; } +#ifdef WIN32 + qemu_displaysurface_win32_set_handle(scanout->ds, res->handle, fb->offset); +#endif pixman_image_unref(rect); dpy_gfx_replace_surface(g->parent_obj.scanout[scanout_id].con, @@ -1228,6 +1256,7 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size, struct virtio_gpu_simple_resource *res; struct virtio_gpu_scanout *scanout; uint32_t resource_id, pformat; + void *bits = NULL; int i; g->hostmem = 0; @@ -1252,15 +1281,23 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size, g_free(res); return -EINVAL; } + + res->hostmem = calc_image_hostmem(pformat, res->width, res->height); +#ifdef WIN32 + bits = qemu_win32_map_alloc(res->hostmem, &res->handle, &error_warn); + if (!bits) { + g_free(res); + return -EINVAL; + } +#endif res->image = pixman_image_create_bits(pformat, res->width, res->height, - NULL, 0); + bits, res->hostmem / res->height); if (!res->image) { g_free(res); return -EINVAL; } - res->hostmem = calc_image_hostmem(pformat, res->width, res->height); res->addrs = g_new(uint64_t, res->iov_cnt); res->iov = g_new(struct iovec, res->iov_cnt); @@ -1321,6 +1358,9 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size, if (!scanout->ds) { return -EINVAL; } +#ifdef WIN32 + qemu_displaysurface_win32_set_handle(scanout->ds, res->handle, 0); +#endif dpy_gfx_replace_surface(scanout->con, scanout->ds); dpy_gfx_update_full(scanout->con); diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h index 2e28507efe..7a5f8056ea 100644 --- a/include/hw/virtio/virtio-gpu.h +++ b/include/hw/virtio/virtio-gpu.h @@ -48,6 +48,9 @@ struct virtio_gpu_simple_resource { unsigned int iov_cnt; uint32_t scanout_bitmask; pixman_image_t *image; +#ifdef WIN32 + HANDLE handle; +#endif uint64_t hostmem; uint64_t blob_size; -- cgit 1.4.1