drm/i915/glk: Plane color correction register changes

In Geminilake, the bits for enabling pipe csc, pipe gamma and plane
gamma moved to a new register. So update the plane update functions
to set the right bits.

Pipe CSC is kept disabled though, since enabling that also enables the
dedicated degamma table, and that is not properly programmed yet,
leading to a black screen.

v2: Use plane_id. (Ville)
    Remove unnecessary variable. (Ville)
    Keep registers in offset order. (Ville)
    Don't set plane gamma disable twice. (Ander)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ander Conselvan De Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485429865-10687-3-git-send-email-ander.conselvan.de.oliveira@intel.com

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 72f9f36..c220736 100644 (file)
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -5869,11 +5869,18 @@ enum {
 #define _PLANE_KEYMSK_2_A                      0x70298
 #define _PLANE_KEYMAX_1_A                      0x701a0
 #define _PLANE_KEYMAX_2_A                      0x702a0
+#define _PLANE_COLOR_CTL_1_A                   0x701CC /* GLK+ */
+#define _PLANE_COLOR_CTL_2_A                   0x702CC /* GLK+ */
+#define _PLANE_COLOR_CTL_3_A                   0x703CC /* GLK+ */
+#define   PLANE_COLOR_PIPE_GAMMA_ENABLE                (1 << 30)
+#define   PLANE_COLOR_PIPE_CSC_ENABLE          (1 << 23)
+#define   PLANE_COLOR_PLANE_GAMMA_DISABLE      (1 << 13)
 #define _PLANE_BUF_CFG_1_A                     0x7027c
 #define _PLANE_BUF_CFG_2_A                     0x7037c
 #define _PLANE_NV12_BUF_CFG_1_A                0x70278
 #define _PLANE_NV12_BUF_CFG_2_A                0x70378
 
+
 #define _PLANE_CTL_1_B                         0x71180
 #define _PLANE_CTL_2_B                         0x71280
 #define _PLANE_CTL_3_B                         0x71380
@@ -5968,7 +5975,17 @@ enum {
 #define PLANE_NV12_BUF_CFG(pipe, plane)        \
        _MMIO_PLANE(plane, _PLANE_NV12_BUF_CFG_1(pipe), _PLANE_NV12_BUF_CFG_2(pipe))
 
-/* SKL new cursor registers */
+#define _PLANE_COLOR_CTL_1_B                   0x711CC
+#define _PLANE_COLOR_CTL_2_B                   0x712CC
+#define _PLANE_COLOR_CTL_3_B                   0x713CC
+#define _PLANE_COLOR_CTL_1(pipe)       \
+       _PIPE(pipe, _PLANE_COLOR_CTL_1_A, _PLANE_COLOR_CTL_1_B)
+#define _PLANE_COLOR_CTL_2(pipe)       \
+       _PIPE(pipe, _PLANE_COLOR_CTL_2_A, _PLANE_COLOR_CTL_2_B)
+#define PLANE_COLOR_CTL(pipe, plane)   \
+       _MMIO_PLANE(plane, _PLANE_COLOR_CTL_1(pipe), _PLANE_COLOR_CTL_2(pipe))
+
+#/* SKL new cursor registers */
 #define _CUR_BUF_CFG_A                         0x7017c
 #define _CUR_BUF_CFG_B                         0x7117c
 #define CUR_BUF_CFG(pipe)      _MMIO_PIPE(pipe, _CUR_BUF_CFG_A, _CUR_BUF_CFG_B)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 37f71e9..ac25706 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3386,13 +3386,21 @@ static void skylake_update_primary_plane(struct drm_plane *plane,
        int dst_w = drm_rect_width(&plane_state->base.dst);
        int dst_h = drm_rect_height(&plane_state->base.dst);
 
-       plane_ctl = PLANE_CTL_ENABLE |
-                   PLANE_CTL_PIPE_GAMMA_ENABLE |
-                   PLANE_CTL_PIPE_CSC_ENABLE;
+       plane_ctl = PLANE_CTL_ENABLE;
+
+       if (IS_GEMINILAKE(dev_priv)) {
+               I915_WRITE(PLANE_COLOR_CTL(pipe, plane_id),
+                          PLANE_COLOR_PIPE_GAMMA_ENABLE |
+                          PLANE_COLOR_PLANE_GAMMA_DISABLE);
+       } else {
+               plane_ctl |=
+                       PLANE_CTL_PIPE_GAMMA_ENABLE |
+                       PLANE_CTL_PIPE_CSC_ENABLE |
+                       PLANE_CTL_PLANE_GAMMA_DISABLE;
+       }
 
        plane_ctl |= skl_plane_ctl_format(fb->format->format);
        plane_ctl |= skl_plane_ctl_tiling(fb->modifier);
-       plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE;
        plane_ctl |= skl_plane_ctl_rotation(rotation);
 
        /* Sizes are 0 based */

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index c05545f..b16a295 100644 (file)
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -219,14 +219,21 @@ skl_update_plane(struct drm_plane *drm_plane,
        uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
        uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16;
 
-       plane_ctl = PLANE_CTL_ENABLE |
-               PLANE_CTL_PIPE_GAMMA_ENABLE |
-               PLANE_CTL_PIPE_CSC_ENABLE;
+       plane_ctl = PLANE_CTL_ENABLE;
+
+       if (IS_GEMINILAKE(dev_priv)) {
+               I915_WRITE(PLANE_COLOR_CTL(pipe, plane_id),
+                          PLANE_COLOR_PIPE_GAMMA_ENABLE |
+                          PLANE_COLOR_PLANE_GAMMA_DISABLE);
+       } else {
+               plane_ctl |=
+                       PLANE_CTL_PIPE_GAMMA_ENABLE |
+                       PLANE_CTL_PIPE_CSC_ENABLE |
+                       PLANE_CTL_PLANE_GAMMA_DISABLE;
+       }
 
        plane_ctl |= skl_plane_ctl_format(fb->format->format);
        plane_ctl |= skl_plane_ctl_tiling(fb->modifier);
-
-       plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE;
        plane_ctl |= skl_plane_ctl_rotation(rotation);
 
        if (key->flags) {