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Hi Michel,
Could you please help to review this? Thanks very much.
Best Wishes,
Emily Deng
> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf Of
> Emily Deng
> Sent: Tuesday, August 16, 2016 6:15 PM
> To: amd-gfx at lists.freedesktop.org
> Cc: Deng, Emily <Emily.Deng at amd.com>
> Subject: [PATCH] drm/amdgpu: For virtual_display feature, the
> vblank_get_counter hook is always return 0 when there's no hardware frame
> counter which can be used.
>
> Signed-off-by: Emily Deng <Emily.Deng at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/dce_virtual.c | 16 ++++------------
> 1 file changed, 4 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
> b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
> index 2ce5f90..85f14a6 100644
> --- a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
> +++ b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
> @@ -55,10 +55,7 @@ static void dce_virtual_vblank_wait(struct
> amdgpu_device *adev, int crtc)
>
> static u32 dce_virtual_vblank_get_counter(struct amdgpu_device *adev, int
> crtc) {
> - if (crtc >= adev->mode_info.num_crtc)
> - return 0;
> - else
> - return adev->ddev->vblank[crtc].count;
> + return 0;
> }
>
> static void dce_virtual_page_flip(struct amdgpu_device *adev, @@ -70,13
> +67,10 @@ static void dce_virtual_page_flip(struct amdgpu_device *adev,
> static int dce_virtual_crtc_get_scanoutpos(struct amdgpu_device *adev, int
> crtc,
> u32 *vbl, u32 *position)
> {
> - if ((crtc < 0) || (crtc >= adev->mode_info.num_crtc))
> - return -EINVAL;
> -
> *vbl = 0;
> *position = 0;
>
> - return 0;
> + return -EINVAL;
> }
>
> static bool dce_virtual_hpd_sense(struct amdgpu_device *adev, @@ -405,6
> +399,8 @@ static int dce_virtual_sw_init(void *handle)
> if (r)
> return r;
>
> + adev->ddev->max_vblank_count = 0;
> +
> adev->ddev->mode_config.funcs = &amdgpu_mode_funcs;
>
> adev->ddev->mode_config.max_width = 16384; @@ -653,7 +649,6
> @@ static enum hrtimer_restart dce_virtual_vblank_timer_handle(struct
> hrtimer *vbla
> struct amdgpu_mode_info *mode_info = container_of(vblank_timer,
> struct amdgpu_mode_info ,vblank_timer);
> struct amdgpu_device *adev = container_of(mode_info, struct
> amdgpu_device ,mode_info);
> unsigned crtc = 0;
> - adev->ddev->vblank[0].count++;
> drm_handle_vblank(adev->ddev, crtc);
> dce_virtual_pageflip_irq(adev, NULL, NULL);
> hrtimer_start(vblank_timer, ktime_set(0,
> DCE_VIRTUAL_VBLANK_PERIOD), HRTIMER_MODE_REL); @@ -680,8 +675,6
> @@ static void dce_virtual_set_crtc_vblank_interrupt_state(struct
> amdgpu_device *ad
> hrtimer_cancel(&adev->mode_info.vblank_timer);
> }
>
> - if (!state || (state && !adev->mode_info.vsync_timer_enabled))
> - adev->ddev->vblank[0].count = 0;
> adev->mode_info.vsync_timer_enabled = state;
> DRM_DEBUG("[FM]set crtc %d vblank interrupt state %d\n", crtc,
> state); } @@ -718,7 +711,6 @@ static int dce_virtual_crtc_irq(struct
> amdgpu_device *adev,
> unsigned crtc = 0;
> unsigned irq_type = AMDGPU_CRTC_IRQ_VBLANK1;
>
> - adev->ddev->vblank[crtc].count++;
> dce_virtual_crtc_vblank_int_ack(adev, crtc);
>
> if (amdgpu_irq_enabled(adev, source, irq_type)) {
> --
> 1.9.1
>
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