On Wed, Apr 29, 2020 at 04:32:34PM +0200, Thomas Zimmermann wrote:
> The hiprivlvl settings are now updated in mgag200_g200se_set_hiprilvl()
> and mgag200_g200ev_set_hiprilvl().
>
> Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/mgag200/mgag200_mode.c | 98 ++++++++++++++------------
> 1 file changed, 54 insertions(+), 44 deletions(-)
>
> diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
> index 6b88c306ff4d7..a04404c5aa769 100644
> --- a/drivers/gpu/drm/mgag200/mgag200_mode.c
> +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
> @@ -1118,6 +1118,56 @@ static void mgag200_g200er_reset_tagfifo(struct mga_device *mdev)
> WREG_SEQ(0x01, seq1);
> }
>
> +static void mgag200_g200se_set_hiprilvl(struct mga_device *mdev,
> + const struct drm_display_mode *mode,
> + const struct drm_framebuffer *fb)
> +{
> + unsigned int hiprilvl;
> + uint8_t crtcext6;
> +
> + if (mdev->unique_rev_id >= 0x04) {
> + hiprilvl = 0;
> + } else if (mdev->unique_rev_id >= 0x02) {
> + unsigned int bpp;
> + unsigned long mb;
> +
> + if (fb->format->cpp[0] * 8 > 16)
> + bpp = 32;
> + else if (fb->format->cpp[0] * 8 > 8)
> + bpp = 16;
> + else
> + bpp = 8;
> +
> + mb = (mode->clock * bpp) / 1000;
> + if (mb > 3100)
> + hiprilvl = 0;
> + else if (mb > 2600)
> + hiprilvl = 1;
> + else if (mb > 1900)
> + hiprilvl = 2;
> + else if (mb > 1160)
> + hiprilvl = 3;
> + else if (mb > 440)
> + hiprilvl = 4;
> + else
> + hiprilvl = 5;
> +
> + } else if (mdev->unique_rev_id >= 0x01) {
> + hiprilvl = 3;
> + } else {
> + hiprilvl = 4;
> + }
> +
> + crtcext6 = hiprilvl; /* implicitly sets maxhipri to 0 */
> +
> + WREG_ECRT(0x06, crtcext6);
> +}
> +
> +static void mgag200_g200ev_set_hiprilvl(struct mga_device *mdev)
> +{
> + WREG_ECRT(0x06, 0x00);
> +}
> +
> static int mga_crtc_mode_set(struct drm_crtc *crtc,
> struct drm_display_mode *mode,
> struct drm_display_mode *adjusted_mode,
> @@ -1236,10 +1286,6 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
> if (mdev->type == G200_EW3)
> WREG_ECRT(0x34, 0x5);
>
> - if (mdev->type == G200_EV) {
> - WREG_ECRT(6, 0);
> - }
> -
> misc = RREG8(MGA_MISC_IN);
> misc |= MGAREG_MISC_IOADSEL |
> MGAREG_MISC_RAMMAPEN |
> @@ -1255,47 +1301,11 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
> if (mdev->type == G200_ER)
> mgag200_g200er_reset_tagfifo(mdev);
>
> + if (IS_G200_SE(mdev))
> + mgag200_g200se_set_hiprilvl(mdev, mode, fb);
> + else if (mdev->type == G200_EV)
> + mgag200_g200ev_set_hiprilvl(mdev);
>
> - if (IS_G200_SE(mdev)) {
> - if (mdev->unique_rev_id >= 0x04) {
> - WREG8(MGAREG_CRTCEXT_INDEX, 0x06);
> - WREG8(MGAREG_CRTCEXT_DATA, 0);
> - } else if (mdev->unique_rev_id >= 0x02) {
> - u8 hi_pri_lvl;
> - u32 bpp;
> - u32 mb;
> -
> - if (fb->format->cpp[0] * 8 > 16)
> - bpp = 32;
> - else if (fb->format->cpp[0] * 8 > 8)
> - bpp = 16;
> - else
> - bpp = 8;
> -
> - mb = (mode->clock * bpp) / 1000;
> - if (mb > 3100)
> - hi_pri_lvl = 0;
> - else if (mb > 2600)
> - hi_pri_lvl = 1;
> - else if (mb > 1900)
> - hi_pri_lvl = 2;
> - else if (mb > 1160)
> - hi_pri_lvl = 3;
> - else if (mb > 440)
> - hi_pri_lvl = 4;
> - else
> - hi_pri_lvl = 5;
> -
> - WREG8(MGAREG_CRTCEXT_INDEX, 0x06);
> - WREG8(MGAREG_CRTCEXT_DATA, hi_pri_lvl);
> - } else {
> - WREG8(MGAREG_CRTCEXT_INDEX, 0x06);
> - if (mdev->unique_rev_id >= 0x01)
> - WREG8(MGAREG_CRTCEXT_DATA, 0x03);
> - else
> - WREG8(MGAREG_CRTCEXT_DATA, 0x04);
> - }
> - }
> return 0;
> }
>
> --
> 2.26.0
>
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