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drm/meson: crtc: add OSD1 plane AFBC commit

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Finally, setup the VIU registers and start the AFBC decoder to support
displaying AFBC encoded buffers on Amlogic GXM and G12A SoCs.

The RDMA is used here to reset and program the AFBC decoder unit
on each vsync without involving the interrupt handler that can
be masked for a long period of time, producing display glitches.

The vsync irq must still be left enabled otherwise the RDMA modules isn't
trigerred when the interrupt line is masked.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191021091509.3864-10-narmstrong@baylibre.com
This commit is contained in:
Neil Armstrong 2019-10-21 11:15:09 +02:00
parent 24e0d4058e
commit c96bcb635a
1 changed files with 72 additions and 5 deletions
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77
drivers/gpu/drm/meson/meson_crtc.c
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@ -23,7 +23,9 @@
#include "meson_registers.h"
#include "meson_venc.h"
#include "meson_viu.h"
#include "meson_rdma.h"
#include "meson_vpp.h"
#include "meson_osd_afbcd.h"
#define MESON_G12A_VIU_OFFSET 0x5ec0
@ -35,7 +37,11 @@ struct meson_crtc {
struct meson_drm *priv;
void (*enable_osd1)(struct meson_drm *priv);
void (*enable_vd1)(struct meson_drm *priv);
void (*enable_osd1_afbc)(struct meson_drm *priv);
void (*disable_osd1_afbc)(struct meson_drm *priv);
unsigned int viu_offset;
bool vsync_forced;
bool vsync_disabled;
};
#define to_meson_crtc(x) container_of(x, struct meson_crtc, base)
@ -46,6 +52,7 @@ static int meson_crtc_enable_vblank(struct drm_crtc *crtc)
struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
struct meson_drm *priv = meson_crtc->priv;
meson_crtc->vsync_disabled = false;
meson_venc_enable_vsync(priv);
return 0;
@ -56,7 +63,10 @@ static void meson_crtc_disable_vblank(struct drm_crtc *crtc)
struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
struct meson_drm *priv = meson_crtc->priv;
meson_venc_disable_vsync(priv);
if (!meson_crtc->vsync_forced) {
meson_crtc->vsync_disabled = true;
meson_venc_disable_vsync(priv);
}
}
static const struct drm_crtc_funcs meson_crtc_funcs = {
@ -236,6 +246,26 @@ static void meson_crtc_enable_osd1(struct meson_drm *priv)
priv->io_base + _REG(VPP_MISC));
}
static void meson_crtc_g12a_enable_osd1_afbc(struct meson_drm *priv)
{
writel_relaxed(priv->viu.osd1_blk2_cfg4,
priv->io_base + _REG(VIU_OSD1_BLK2_CFG_W4));
writel_bits_relaxed(OSD_MEM_LINEAR_ADDR, OSD_MEM_LINEAR_ADDR,
priv->io_base + _REG(VIU_OSD1_CTRL_STAT));
writel_relaxed(priv->viu.osd1_blk1_cfg4,
priv->io_base + _REG(VIU_OSD1_BLK1_CFG_W4));
meson_viu_g12a_enable_osd1_afbc(priv);
writel_bits_relaxed(OSD_MEM_LINEAR_ADDR, OSD_MEM_LINEAR_ADDR,
priv->io_base + _REG(VIU_OSD1_CTRL_STAT));
writel_bits_relaxed(OSD_MALI_SRC_EN, OSD_MALI_SRC_EN,
priv->io_base + _REG(VIU_OSD1_BLK0_CFG_W0));
}
static void meson_g12a_crtc_enable_osd1(struct meson_drm *priv)
{
writel_relaxed(priv->viu.osd_blend_din0_scope_h,
@ -293,6 +323,20 @@ void meson_crtc_irq(struct meson_drm *priv)
priv->io_base + _REG(VIU_OSD1_BLK0_CFG_W3));
writel_relaxed(priv->viu.osd1_blk0_cfg[4],
priv->io_base + _REG(VIU_OSD1_BLK0_CFG_W4));
if (priv->viu.osd1_afbcd) {
if (meson_crtc->enable_osd1_afbc)
meson_crtc->enable_osd1_afbc(priv);
} else {
if (meson_crtc->disable_osd1_afbc)
meson_crtc->disable_osd1_afbc(priv);
if (priv->afbcd.ops) {
priv->afbcd.ops->reset(priv);
priv->afbcd.ops->disable(priv);
}
meson_crtc->vsync_forced = false;
}
writel_relaxed(priv->viu.osd_sc_ctrl0,
priv->io_base + _REG(VPP_OSD_SC_CTRL0));
writel_relaxed(priv->viu.osd_sc_i_wh_m1,
@ -314,15 +358,25 @@ void meson_crtc_irq(struct meson_drm *priv)
writel_relaxed(priv->viu.osd_sc_v_ctrl0,
priv->io_base + _REG(VPP_OSD_VSC_CTRL0));
meson_canvas_config(priv->canvas, priv->canvas_id_osd1,
priv->viu.osd1_addr, priv->viu.osd1_stride,
priv->viu.osd1_height, MESON_CANVAS_WRAP_NONE,
MESON_CANVAS_BLKMODE_LINEAR, 0);
if (!priv->viu.osd1_afbcd)
meson_canvas_config(priv->canvas, priv->canvas_id_osd1,
priv->viu.osd1_addr,
priv->viu.osd1_stride,
priv->viu.osd1_height,
MESON_CANVAS_WRAP_NONE,
MESON_CANVAS_BLKMODE_LINEAR, 0);
/* Enable OSD1 */
if (meson_crtc->enable_osd1)
meson_crtc->enable_osd1(priv);
if (priv->viu.osd1_afbcd) {
priv->afbcd.ops->reset(priv);
priv->afbcd.ops->setup(priv);
priv->afbcd.ops->enable(priv);
meson_crtc->vsync_forced = true;
}
priv->viu.osd1_commit = false;
}
@ -545,6 +599,9 @@ void meson_crtc_irq(struct meson_drm *priv)
priv->viu.vd1_commit = false;
}
if (meson_crtc->vsync_disabled)
return;
drm_crtc_handle_vblank(priv->crtc);
spin_lock_irqsave(&priv->drm->event_lock, flags);
@ -581,10 +638,20 @@ int meson_crtc_create(struct meson_drm *priv)
meson_crtc->enable_osd1 = meson_g12a_crtc_enable_osd1;
meson_crtc->enable_vd1 = meson_g12a_crtc_enable_vd1;
meson_crtc->viu_offset = MESON_G12A_VIU_OFFSET;
meson_crtc->enable_osd1_afbc =
meson_crtc_g12a_enable_osd1_afbc;
meson_crtc->disable_osd1_afbc =
meson_viu_g12a_disable_osd1_afbc;
drm_crtc_helper_add(crtc, &meson_g12a_crtc_helper_funcs);
} else {
meson_crtc->enable_osd1 = meson_crtc_enable_osd1;
meson_crtc->enable_vd1 = meson_crtc_enable_vd1;
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM)) {
meson_crtc->enable_osd1_afbc =
meson_viu_gxm_enable_osd1_afbc;
meson_crtc->disable_osd1_afbc =
meson_viu_gxm_disable_osd1_afbc;
}
drm_crtc_helper_add(crtc, &meson_crtc_helper_funcs);
}