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drm/vkms: add support for multiple overlay planes

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Create 8 overlay planes instead of 1 when the "enable_overlay" module
parameter is set.

The following igt-gpu-tools tests were executed without finding
regressions. Notice than the numbers are identical:

                    |     master branch     |      this  patch      |
                    | SUCCESS | SKIP | FAIL | SUCCESS | SKIP | FAIL |
 kms_atomic         |      10 |   02 |   00 |      10 |   02 |   00 |
 kms_plane_cursor   |      09 |   45 |   00 |      09 |   45 |   00 |
 kms_plane_multiple |      01 |   23 |   00 |      01 |   23 |   00 |
 kms_writeback      |      04 |   00 |   00 |      04 |   00 |   00 |

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220107182809.141003-2-jose.exposito89@gmail.com
This commit is contained in:
José Expósito 2022-01-07 19:28:08 +01:00 committed by Melissa Wen
parent 5edaa2b974
commit df2d385cb4
2 changed files with 8 additions and 3 deletions
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2
drivers/gpu/drm/vkms/vkms_drv.h
View File

@ -20,6 +20,8 @@
#define XRES_MAX 8192
#define YRES_MAX 8192
#define NUM_OVERLAY_PLANES 8
struct vkms_writeback_job {
struct dma_buf_map map[DRM_FORMAT_MAX_PLANES];
struct dma_buf_map data[DRM_FORMAT_MAX_PLANES];

9
drivers/gpu/drm/vkms/vkms_output.c
View File

@ -57,15 +57,18 @@ int vkms_output_init(struct vkms_device *vkmsdev, int index)
struct vkms_plane *primary, *cursor = NULL;
int ret;
int writeback;
unsigned int n;
primary = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_PRIMARY, index);
if (IS_ERR(primary))
return PTR_ERR(primary);
if (vkmsdev->config->overlay) {
ret = vkms_add_overlay_plane(vkmsdev, index, crtc);
if (ret)
return ret;
for (n = 0; n < NUM_OVERLAY_PLANES; n++) {
ret = vkms_add_overlay_plane(vkmsdev, index, crtc);
if (ret)
return ret;
}
}
if (vkmsdev->config->cursor) {