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drm/vkms/crc: Implement verify_crc_source callback

Browse source 
This patch implements "verify_crc_source" callback function for
Virtual KMS drm driver.

Changes Since V1:
- update values_cnt in verify_crc_source
Changes Since V2:
- don't return early from set_crc_source to keep behavior same (Haneen)

Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Reviewed-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180821083858.26275-2-mahesh1.kumar@intel.com
This commit is contained in:
Mahesh Kumar 2018-08-21 14:08:55 +05:30 committed by Rodrigo Vivi
parent 7e7b68ef00
commit af6979331d
3 changed files with 35 additions and 4 deletions
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36
drivers/gpu/drm/vkms/vkms_crc.c
View file

@ -70,6 +70,37 @@ void vkms_crc_work_handle(struct work_struct *work)
drm_crtc_add_crc_entry(crtc, true, crtc_state->n_frame, &crc32);
}
static int vkms_crc_parse_source(const char *src_name, bool *enabled)
{
int ret = 0;
if (!src_name) {
*enabled = false;
} else if (strcmp(src_name, "auto") == 0) {
*enabled = true;
} else {
*enabled = false;
ret = -EINVAL;
}
return ret;
}
int vkms_verify_crc_source(struct drm_crtc *crtc, const char *src_name,
size_t *values_cnt)
{
bool enabled;
if (vkms_crc_parse_source(src_name, &enabled) < 0) {
DRM_DEBUG_DRIVER("unknown source %s\n", src_name);
return -EINVAL;
}
*values_cnt = 1;
return 0;
}
int vkms_set_crc_source(struct drm_crtc *crtc, const char *src_name,
size_t *values_cnt)
{
@ -78,10 +109,7 @@ int vkms_set_crc_source(struct drm_crtc *crtc, const char *src_name,
unsigned long flags;
int ret = 0;
if (src_name && strcmp(src_name, "auto") == 0)
enabled = true;
else if (src_name)
ret = -EINVAL;
ret = vkms_crc_parse_source(src_name, &enabled);
*values_cnt = 1;

1
drivers/gpu/drm/vkms/vkms_crtc.c
View file

@ -140,6 +140,7 @@ static const struct drm_crtc_funcs vkms_crtc_funcs = {
.enable_vblank = vkms_enable_vblank,
.disable_vblank = vkms_disable_vblank,
.set_crc_source = vkms_set_crc_source,
.verify_crc_source = vkms_verify_crc_source,
};
static void vkms_crtc_atomic_enable(struct drm_crtc *crtc,

2
drivers/gpu/drm/vkms/vkms_drv.h
View file

@ -125,6 +125,8 @@ void vkms_gem_vunmap(struct drm_gem_object *obj);
/* CRC Support */
int vkms_set_crc_source(struct drm_crtc *crtc, const char *src_name,
size_t *values_cnt);
int vkms_verify_crc_source(struct drm_crtc *crtc, const char *source_name,
size_t *values_cnt);
void vkms_crc_work_handle(struct work_struct *work);
#endif /* _VKMS_DRV_H_ */