diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0618-drm-vc4-hvs-Store-channel-in-variable.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0618-drm-vc4-hvs-Store-channel-in-variable.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0618-drm-vc4-hvs-Store-channel-in-variable.patch b/target/linux/bcm27xx/patches-5.15/950-0618-drm-vc4-hvs-Store-channel-in-variable.patch new file mode 100644 index 0000000000..5a668dc870 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.15/950-0618-drm-vc4-hvs-Store-channel-in-variable.patch @@ -0,0 +1,53 @@ +From ac0e3e24176b77fa19a7a2e041879f6c5e652122 Mon Sep 17 00:00:00 2001 +From: Maxime Ripard <maxime@cerno.tech> +Date: Mon, 29 Nov 2021 12:18:39 +0100 +Subject: [PATCH] drm/vc4: hvs: Store channel in variable + +The assigned_channel field of our vc4_crtc_state structure is accessed +multiple times in vc4_hvs_atomic_flush, so let's move it to a variable +that can be used in all those places. + +Signed-off-by: Maxime Ripard <maxime@cerno.tech> +--- + drivers/gpu/drm/vc4/vc4_hvs.c | 9 +++++---- + 1 file changed, 5 insertions(+), 4 deletions(-) + +--- a/drivers/gpu/drm/vc4/vc4_hvs.c ++++ b/drivers/gpu/drm/vc4/vc4_hvs.c +@@ -674,6 +674,7 @@ void vc4_hvs_atomic_flush(struct drm_crt + struct drm_device *dev = crtc->dev; + struct vc4_dev *vc4 = to_vc4_dev(dev); + struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state); ++ unsigned int channel = vc4_state->assigned_channel; + struct drm_plane *plane; + struct vc4_plane_state *vc4_plane_state; + bool debug_dump_regs = false; +@@ -714,8 +715,8 @@ void vc4_hvs_atomic_flush(struct drm_crt + /* This sets a black background color fill, as is the case + * with other DRM drivers. + */ +- HVS_WRITE(SCALER_DISPBKGNDX(vc4_state->assigned_channel), +- HVS_READ(SCALER_DISPBKGNDX(vc4_state->assigned_channel)) | ++ HVS_WRITE(SCALER_DISPBKGNDX(channel), ++ HVS_READ(SCALER_DISPBKGNDX(channel)) | + SCALER_DISPBKGND_FILL); + + /* Only update DISPLIST if the CRTC was already running and is not +@@ -729,7 +730,7 @@ void vc4_hvs_atomic_flush(struct drm_crt + vc4_hvs_update_dlist(crtc); + + if (crtc->state->color_mgmt_changed) { +- u32 dispbkgndx = HVS_READ(SCALER_DISPBKGNDX(vc4_state->assigned_channel)); ++ u32 dispbkgndx = HVS_READ(SCALER_DISPBKGNDX(channel)); + + if (crtc->state->gamma_lut) { + if (!vc4->hvs->hvs5) { +@@ -752,7 +753,7 @@ void vc4_hvs_atomic_flush(struct drm_crt + if (!vc4->hvs->hvs5) + dispbkgndx &= ~SCALER_DISPBKGND_GAMMA; + } +- HVS_WRITE(SCALER_DISPBKGNDX(vc4_state->assigned_channel), dispbkgndx); ++ HVS_WRITE(SCALER_DISPBKGNDX(channel), dispbkgndx); + } + + if (debug_dump_regs) { |