[PATCH 07/22] drm: rcar-du: Add VSP1 compositor support
Laurent Pinchart
laurent.pinchart+renesas at ideasonboard.com
Sun Sep 13 15:50:54 PDT 2015
Configure the plane source at plane setup time to source frames from
memory or from the VSP1.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
---
drivers/gpu/drm/rcar-du/rcar_du_drv.h | 2 +
drivers/gpu/drm/rcar-du/rcar_du_group.c | 24 +++++----
drivers/gpu/drm/rcar-du/rcar_du_group.h | 2 +
drivers/gpu/drm/rcar-du/rcar_du_kms.c | 16 ++++--
drivers/gpu/drm/rcar-du/rcar_du_plane.c | 86 +++++++++++++++++++--------------
drivers/gpu/drm/rcar-du/rcar_du_regs.h | 1 +
6 files changed, 82 insertions(+), 49 deletions(-)
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
index 9f34fc86436a..e10b4f0d8f83 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
@@ -90,6 +90,8 @@ struct rcar_du_device {
} props;
unsigned int dpad0_source;
+ unsigned int vspd1_sink;
+
struct rcar_du_lvdsenc *lvds[RCAR_DU_MAX_LVDS];
struct {
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c
index 8e2ffe025153..4a44ddd51766 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_group.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c
@@ -49,11 +49,15 @@ static void rcar_du_group_setup_defr8(struct rcar_du_group *rgrp)
u32 defr8 = DEFR8_CODE | DEFR8_DEFE8;
/* The DEFR8 register for the first group also controls RGB output
- * routing to DPAD0 for DU instances that support it.
+ * routing to DPAD0 and VSPD1 routing to DU0/1/2 for DU instances that
+ * support it.
*/
- if (rgrp->dev->info->routes[RCAR_DU_OUTPUT_DPAD0].possible_crtcs > 1 &&
- rgrp->index == 0)
- defr8 |= DEFR8_DRGBS_DU(rgrp->dev->dpad0_source);
+ if (rgrp->index == 0) {
+ if (rgrp->dev->info->routes[RCAR_DU_OUTPUT_DPAD0].possible_crtcs > 1)
+ defr8 |= DEFR8_DRGBS_DU(rgrp->dev->dpad0_source);
+ if (rgrp->dev->vspd1_sink == 2)
+ defr8 |= DEFR8_VSCS;
+ }
rcar_du_group_write(rgrp, DEFR8, defr8);
}
@@ -162,17 +166,17 @@ void rcar_du_group_restart(struct rcar_du_group *rgrp)
__rcar_du_group_start_stop(rgrp, true);
}
-static int rcar_du_set_dpad0_routing(struct rcar_du_device *rcdu)
+int rcar_du_set_dpad0_vsp1_routing(struct rcar_du_device *rcdu)
{
int ret;
if (!rcar_du_has(rcdu, RCAR_DU_FEATURE_EXT_CTRL_REGS))
return 0;
- /* RGB output routing to DPAD0 is configured in the DEFR8 register of
- * the first group. As this function can be called with the DU0 and DU1
- * CRTCs disabled, we need to enable the first group clock before
- * accessing the register.
+ /* RGB output routing to DPAD0 and VSP1D routing to DU0/1/2 are
+ * configured in the DEFR8 register of the first group. As this function
+ * can be called with the DU0 and DU1 CRTCs disabled, we need to enable
+ * the first group clock before accessing the register.
*/
ret = clk_prepare_enable(rcdu->crtcs[0].clock);
if (ret < 0)
@@ -203,5 +207,5 @@ int rcar_du_group_set_routing(struct rcar_du_group *rgrp)
rcar_du_group_write(rgrp, DORCR, dorcr);
- return rcar_du_set_dpad0_routing(rgrp->dev);
+ return rcar_du_set_dpad0_vsp1_routing(rgrp->dev);
}
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.h b/drivers/gpu/drm/rcar-du/rcar_du_group.h
index d7318e1a6b00..4b1952fd4e7d 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_group.h
+++ b/drivers/gpu/drm/rcar-du/rcar_du_group.h
@@ -58,4 +58,6 @@ void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start);
void rcar_du_group_restart(struct rcar_du_group *rgrp);
int rcar_du_group_set_routing(struct rcar_du_group *rgrp);
+int rcar_du_set_dpad0_vsp1_routing(struct rcar_du_device *rcdu);
+
#endif /* __RCAR_DU_GROUP_H__ */
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
index 455f7e466181..ba4e100e5b0f 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c
@@ -217,17 +217,25 @@ static void rcar_du_output_poll_changed(struct drm_device *dev)
*/
static bool rcar_du_plane_needs_realloc(struct rcar_du_plane *plane,
- struct rcar_du_plane_state *state)
+ struct rcar_du_plane_state *new_state)
{
- const struct rcar_du_format_info *cur_format;
+ struct rcar_du_plane_state *cur_state;
- cur_format = to_rcar_plane_state(plane->plane.state)->format;
+ cur_state = to_rcar_plane_state(plane->plane.state);
/* Lowering the number of planes doesn't strictly require reallocation
* as the extra hardware plane will be freed when committing, but doing
* so could lead to more fragmentation.
*/
- return !cur_format || cur_format->planes != state->format->planes;
+ if (!cur_state->format ||
+ cur_state->format->planes != new_state->format->planes)
+ return true;
+
+ /* Reallocate hardware planes if the source has changed. */
+ if (cur_state->source != new_state->source)
+ return true;
+
+ return false;
}
static unsigned int rcar_du_plane_hwmask(struct rcar_du_plane_state *state)
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
index f301c15934cc..78ca353bfcf0 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
@@ -20,6 +20,7 @@
#include <drm/drm_plane_helper.h>
#include "rcar_du_drv.h"
+#include "rcar_du_group.h"
#include "rcar_du_kms.h"
#include "rcar_du_plane.h"
#include "rcar_du_regs.h"
@@ -35,37 +36,42 @@ static void rcar_du_plane_write(struct rcar_du_group *rgrp,
data);
}
-static void rcar_du_plane_setup_scanout(struct rcar_du_plane *plane)
+static void rcar_du_plane_setup_scanout(struct rcar_du_group *rgrp,
+ const struct rcar_du_plane_state *state)
{
- struct rcar_du_plane_state *state =
- to_rcar_plane_state(plane->plane.state);
- struct drm_framebuffer *fb = plane->plane.state->fb;
- struct rcar_du_group *rgrp = plane->group;
unsigned int src_x = state->state.src_x >> 16;
unsigned int src_y = state->state.src_y >> 16;
unsigned int index = state->hwindex;
- struct drm_gem_cma_object *gem;
unsigned int pitch;
bool interlaced;
- unsigned int i;
u32 dma[2];
interlaced = state->state.crtc->state->adjusted_mode.flags
& DRM_MODE_FLAG_INTERLACE;
- /* Memory pitch (expressed in pixels). Must be doubled for interlaced
- * operation with 32bpp formats.
- */
- if (state->format->planes == 2)
- pitch = fb->pitches[0];
- else
- pitch = fb->pitches[0] * 8 / state->format->bpp;
+ if (state->source == RCAR_DU_PLANE_MEMORY) {
+ struct drm_framebuffer *fb = state->state.fb;
+ struct drm_gem_cma_object *gem;
+ unsigned int i;
+
+ if (state->format->planes == 2)
+ pitch = fb->pitches[0];
+ else
+ pitch = fb->pitches[0] * 8 / state->format->bpp;
- for (i = 0; i < state->format->planes; ++i) {
- gem = drm_fb_cma_get_gem_obj(fb, i);
- dma[i] = gem->paddr + fb->offsets[i];
+ for (i = 0; i < state->format->planes; ++i) {
+ gem = drm_fb_cma_get_gem_obj(fb, i);
+ dma[i] = gem->paddr + fb->offsets[i];
+ }
+ } else {
+ pitch = state->state.src_w >> 16;
+ dma[0] = 0;
+ dma[1] = 0;
}
+ /* Memory pitch (expressed in pixels). Must be doubled for interlaced
+ * operation with 32bpp formats.
+ */
rcar_du_plane_write(rgrp, index, PnMWR,
(interlaced && state->format->bpp == 32) ?
pitch * 2 : pitch);
@@ -101,12 +107,10 @@ static void rcar_du_plane_setup_scanout(struct rcar_du_plane *plane)
}
}
-static void rcar_du_plane_setup_mode(struct rcar_du_plane *plane,
- unsigned int index)
+static void rcar_du_plane_setup_mode(struct rcar_du_group *rgrp,
+ unsigned int index,
+ const struct rcar_du_plane_state *state)
{
- struct rcar_du_plane_state *state =
- to_rcar_plane_state(plane->plane.state);
- struct rcar_du_group *rgrp = plane->group;
u32 colorkey;
u32 pnmr;
@@ -164,12 +168,10 @@ static void rcar_du_plane_setup_mode(struct rcar_du_plane *plane,
}
}
-static void rcar_du_plane_setup_format(struct rcar_du_plane *plane,
- unsigned int index)
+static void rcar_du_plane_setup_format(struct rcar_du_group *rgrp,
+ unsigned int index,
+ const struct rcar_du_plane_state *state)
{
- struct rcar_du_plane_state *state =
- to_rcar_plane_state(plane->plane.state);
- struct rcar_du_group *rgrp = plane->group;
u32 ddcr2 = PnDDCR2_CODE;
u32 ddcr4;
@@ -179,7 +181,7 @@ static void rcar_du_plane_setup_format(struct rcar_du_plane *plane,
* field in DDCR4.
*/
- rcar_du_plane_setup_mode(plane, index);
+ rcar_du_plane_setup_mode(rgrp, index, state);
if (state->format->planes == 2) {
if (state->hwindex != index) {
@@ -199,14 +201,16 @@ static void rcar_du_plane_setup_format(struct rcar_du_plane *plane,
rcar_du_plane_write(rgrp, index, PnDDCR2, ddcr2);
ddcr4 = state->format->edf | PnDDCR4_CODE;
+ if (state->source != RCAR_DU_PLANE_MEMORY)
+ ddcr4 |= PnDDCR4_VSPS;
rcar_du_plane_write(rgrp, index, PnDDCR4, ddcr4);
/* Destination position and size */
- rcar_du_plane_write(rgrp, index, PnDSXR, plane->plane.state->crtc_w);
- rcar_du_plane_write(rgrp, index, PnDSYR, plane->plane.state->crtc_h);
- rcar_du_plane_write(rgrp, index, PnDPXR, plane->plane.state->crtc_x);
- rcar_du_plane_write(rgrp, index, PnDPYR, plane->plane.state->crtc_y);
+ rcar_du_plane_write(rgrp, index, PnDSXR, state->state.crtc_w);
+ rcar_du_plane_write(rgrp, index, PnDSYR, state->state.crtc_h);
+ rcar_du_plane_write(rgrp, index, PnDPXR, state->state.crtc_x);
+ rcar_du_plane_write(rgrp, index, PnDPYR, state->state.crtc_y);
/* Wrap-around and blinking, disabled */
rcar_du_plane_write(rgrp, index, PnWASPR, 0);
@@ -219,12 +223,24 @@ void rcar_du_plane_setup(struct rcar_du_plane *plane)
{
struct rcar_du_plane_state *state =
to_rcar_plane_state(plane->plane.state);
+ struct rcar_du_group *rgrp = plane->group;
- rcar_du_plane_setup_format(plane, state->hwindex);
+ rcar_du_plane_setup_format(rgrp, state->hwindex, state);
if (state->format->planes == 2)
- rcar_du_plane_setup_format(plane, (state->hwindex + 1) % 8);
+ rcar_du_plane_setup_format(rgrp, (state->hwindex + 1) % 8,
+ state);
+
+ rcar_du_plane_setup_scanout(rgrp, state);
- rcar_du_plane_setup_scanout(plane);
+ if (state->source == RCAR_DU_PLANE_VSPD1) {
+ unsigned int vspd1_sink = rgrp->index ? 2 : 0;
+ struct rcar_du_device *rcdu = rgrp->dev;
+
+ if (rcdu->vspd1_sink != vspd1_sink) {
+ rcdu->vspd1_sink = vspd1_sink;
+ rcar_du_set_dpad0_vsp1_routing(rcdu);
+ }
+ }
}
static int rcar_du_plane_atomic_check(struct drm_plane *plane,
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_regs.h b/drivers/gpu/drm/rcar-du/rcar_du_regs.h
index 70fcbc471ebd..ac9c3e511e79 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_regs.h
+++ b/drivers/gpu/drm/rcar-du/rcar_du_regs.h
@@ -389,6 +389,7 @@
#define PnDDCR4 0x00190
#define PnDDCR4_CODE (0x7766 << 16)
+#define PnDDCR4_VSPS (1 << 13)
#define PnDDCR4_SDFS_RGB (0 << 4)
#define PnDDCR4_SDFS_YC (5 << 4)
#define PnDDCR4_SDFS_MASK (7 << 4)
--
2.4.6
More information about the dri-devel
mailing list