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drm/exynos: implement atomic_{begin/flush} of DECON 

Each CRTC's atomic_{begin/flush} must stop/start the update of shadow
registers to active register in the functions. This patch achieves these
purpose by moving the setting of protection bits to those functions from
decon_update_plane.

v2: rebased to the branch exynos-drm-next

Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Hyungwon Hwang 2015-08-27 18:21:14 +09:00 committed by Inki Dae
parent e7fefb1d5a
commit cc5a7b3579
2 changed files with 51 additions and 13 deletions
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34
drivers/gpu/drm/exynos/exynos5433_drm_decon.c
View File

@ -219,6 +219,17 @@ static void decon_shadow_protect_win(struct decon_context *ctx, int win,
writel(val, ctx->addr + DECON_SHADOWCON);
}
static void decon_atomic_begin(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
struct decon_context *ctx = crtc->ctx;
if (ctx->suspended)
return;
decon_shadow_protect_win(ctx, plane->zpos, true);
}
static void decon_update_plane(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
@ -232,8 +243,6 @@ static void decon_update_plane(struct exynos_drm_crtc *crtc,
if (ctx->suspended)
return;
decon_shadow_protect_win(ctx, win, true);
val = COORDINATE_X(plane->crtc_x) | COORDINATE_Y(plane->crtc_y);
writel(val, ctx->addr + DECON_VIDOSDxA(win));
@ -265,15 +274,10 @@ static void decon_update_plane(struct exynos_drm_crtc *crtc,
val |= WINCONx_ENWIN_F;
writel(val, ctx->addr + DECON_WINCONx(win));
decon_shadow_protect_win(ctx, win, false);
/* standalone update */
val = readl(ctx->addr + DECON_UPDATE);
val |= STANDALONE_UPDATE_F;
writel(val, ctx->addr + DECON_UPDATE);
if (ctx->i80_if)
atomic_set(&ctx->win_updated, 1);
}
static void decon_disable_plane(struct exynos_drm_crtc *crtc,
@ -301,6 +305,20 @@ static void decon_disable_plane(struct exynos_drm_crtc *crtc,
writel(val, ctx->addr + DECON_UPDATE);
}
static void decon_atomic_flush(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
struct decon_context *ctx = crtc->ctx;
if (ctx->suspended)
return;
decon_shadow_protect_win(ctx, plane->zpos, false);
if (ctx->i80_if)
atomic_set(&ctx->win_updated, 1);
}
static void decon_swreset(struct decon_context *ctx)
{
unsigned int tries;
@ -455,8 +473,10 @@ static struct exynos_drm_crtc_ops decon_crtc_ops = {
.enable_vblank = decon_enable_vblank,
.disable_vblank = decon_disable_vblank,
.commit = decon_commit,
.atomic_begin = decon_atomic_begin,
.update_plane = decon_update_plane,
.disable_plane = decon_disable_plane,
.atomic_flush = decon_atomic_flush,
.te_handler = decon_te_irq_handler,
};

30
drivers/gpu/drm/exynos/exynos7_drm_decon.c
View File

@ -383,6 +383,17 @@ static void decon_shadow_protect_win(struct decon_context *ctx,
writel(val, ctx->regs + SHADOWCON);
}
static void decon_atomic_begin(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
struct decon_context *ctx = crtc->ctx;
if (ctx->suspended)
return;
decon_shadow_protect_win(ctx, plane->zpos, true);
}
static void decon_update_plane(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
@ -410,9 +421,6 @@ static void decon_update_plane(struct exynos_drm_crtc *crtc,
* is set.
*/
/* protect windows */
decon_shadow_protect_win(ctx, win, true);
/* buffer start address */
val = (unsigned long)plane->dma_addr[0];
writel(val, ctx->regs + VIDW_BUF_START(win));
@ -510,14 +518,22 @@ static void decon_disable_plane(struct exynos_drm_crtc *crtc,
val &= ~WINCONx_ENWIN;
writel(val, ctx->regs + WINCON(win));
/* unprotect windows */
decon_shadow_protect_win(ctx, win, false);
val = readl(ctx->regs + DECON_UPDATE);
val |= DECON_UPDATE_STANDALONE_F;
writel(val, ctx->regs + DECON_UPDATE);
}
static void decon_atomic_flush(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
struct decon_context *ctx = crtc->ctx;
if (ctx->suspended)
return;
decon_shadow_protect_win(ctx, plane->zpos, false);
}
static void decon_init(struct decon_context *ctx)
{
u32 val;
@ -614,8 +630,10 @@ static const struct exynos_drm_crtc_ops decon_crtc_ops = {
.enable_vblank = decon_enable_vblank,
.disable_vblank = decon_disable_vblank,
.wait_for_vblank = decon_wait_for_vblank,
.atomic_begin = decon_atomic_begin,
.update_plane = decon_update_plane,
.disable_plane = decon_disable_plane,
.atomic_flush = decon_atomic_flush,
};