The stage contains configuration for a mixer pair. Currently the plane
supports just one stage and 2 pipes. Quad-pipe support will require
handling 2 stages and 4 pipes at the same time. In preparation for that
add a separate define, PIPES_PER_PLANE, to denote number of pipes that
can be used by the plane.

Signed-off-by: Jun Nie <jun....@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c    |  2 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h |  1 +
 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c   | 14 +++++++-------
 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h   |  4 ++--
 4 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 
193818b02197d0737c86de7765d98732fa914e8e..81474823e6799132db71c9712046d359e3535d90
 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -463,7 +463,7 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc 
*crtc,
                if (pstate->stage == DPU_STAGE_BASE && format->alpha_enable)
                        bg_alpha_enable = true;
 
-               for (i = 0; i < PIPES_PER_STAGE; i++) {
+               for (i = 0; i < PIPES_PER_PLANE; i++) {
                        if (!pstate->pipe[i].sspp)
                                continue;
                        set_bit(pstate->pipe[i].sspp->idx, fetch_active);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h
index 
ba7bb05efe9b8cac01a908e53121117e130f91ec..5f010d36672cc6440c69779908b315aab285eaf0
 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h
@@ -34,6 +34,7 @@
 #define DPU_MAX_PLANES                 4
 #endif
 
+#define PIPES_PER_PLANE                        2
 #define PIPES_PER_STAGE                        2
 #ifndef DPU_MAX_DE_CURVES
 #define DPU_MAX_DE_CURVES              3
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 
ef44af5ab681c8f526333fa92531a2225983aa09..d67f2ad20b4754ca4bcb759a65a39628b7236b0f
 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -1078,7 +1078,7 @@ static int dpu_plane_virtual_atomic_check(struct 
drm_plane *plane,
                 * resources are freed by dpu_crtc_assign_plane_resources(),
                 * but clean them here.
                 */
-               for (i = 0; i < PIPES_PER_STAGE; i++)
+               for (i = 0; i < PIPES_PER_PLANE; i++)
                        pstate->pipe[i].sspp = NULL;
 
                return 0;
@@ -1129,7 +1129,7 @@ static int dpu_plane_virtual_assign_resources(struct 
drm_crtc *crtc,
        pipe_cfg = &pstate->pipe_cfg[0];
        r_pipe_cfg = &pstate->pipe_cfg[1];
 
-       for (i = 0; i < PIPES_PER_STAGE; i++)
+       for (i = 0; i < PIPES_PER_PLANE; i++)
                pstate->pipe[i].sspp = NULL;
 
        if (!plane_state->fb)
@@ -1241,7 +1241,7 @@ void dpu_plane_flush(struct drm_plane *plane)
                /* force 100% alpha */
                _dpu_plane_color_fill(pdpu, pdpu->color_fill, 0xFF);
        else {
-               for (i = 0; i < PIPES_PER_STAGE; i++)
+               for (i = 0; i < PIPES_PER_PLANE; i++)
                        dpu_plane_flush_csc(pdpu, &pstate->pipe[i]);
        }
 
@@ -1364,7 +1364,7 @@ static void dpu_plane_sspp_atomic_update(struct drm_plane 
*plane,
                        &fmt->pixel_format, MSM_FORMAT_IS_UBWC(fmt));
 
        /* move the assignment here, to ease handling to another pairs later */
-       for (i = 0; i < PIPES_PER_STAGE; i++) {
+       for (i = 0; i < PIPES_PER_PLANE; i++) {
                if (!pstate->pipe[i].sspp)
                        continue;
                dpu_plane_sspp_update_pipe(plane, &pstate->pipe[i],
@@ -1378,7 +1378,7 @@ static void dpu_plane_sspp_atomic_update(struct drm_plane 
*plane,
 
        pstate->plane_fetch_bw = 0;
        pstate->plane_clk = 0;
-       for (i = 0; i < PIPES_PER_STAGE; i++) {
+       for (i = 0; i < PIPES_PER_PLANE; i++) {
                if (!pstate->pipe[i].sspp)
                        continue;
                pstate->plane_fetch_bw += _dpu_plane_calc_bw(pdpu->catalog, fmt,
@@ -1397,7 +1397,7 @@ static void _dpu_plane_atomic_disable(struct drm_plane 
*plane)
        struct dpu_sw_pipe *pipe;
        int i;
 
-       for (i = 0; i < PIPES_PER_STAGE; i += 1) {
+       for (i = 0; i < PIPES_PER_PLANE; i += 1) {
                pipe = &pstate->pipe[i];
                if (!pipe->sspp)
                        continue;
@@ -1519,7 +1519,7 @@ static void dpu_plane_atomic_print_state(struct 
drm_printer *p,
 
        drm_printf(p, "\tstage=%d\n", pstate->stage);
 
-       for (i = 0; i < PIPES_PER_STAGE; i++) {
+       for (i = 0; i < PIPES_PER_PLANE; i++) {
                pipe = &pstate->pipe[i];
                if (!pipe->sspp)
                        continue;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h
index 
052fd046e8463855b16b30389c2efc67c0c15281..18ff5ec2603ed63ce45f530ced3407d3b70c737b
 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h
@@ -33,8 +33,8 @@
 struct dpu_plane_state {
        struct drm_plane_state base;
        struct msm_gem_address_space *aspace;
-       struct dpu_sw_pipe pipe[PIPES_PER_STAGE];
-       struct dpu_sw_pipe_cfg pipe_cfg[PIPES_PER_STAGE];
+       struct dpu_sw_pipe pipe[PIPES_PER_PLANE];
+       struct dpu_sw_pipe_cfg pipe_cfg[PIPES_PER_PLANE];
        enum dpu_stage stage;
        bool needs_qos_remap;
        bool pending;

-- 
2.34.1

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