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58 lines
2.0 KiB
Diff
58 lines
2.0 KiB
Diff
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From 7682cc9fdcf765f85a4c91b603840c4db06cb45b Mon Sep 17 00:00:00 2001
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From: Eric Anholt <eric@anholt.net>
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Date: Mon, 5 Feb 2018 18:02:30 +0000
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Subject: [PATCH] drm/vc4: Skip SET_CURSOR_INFO when the cursor
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contents didn't change.
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Signed-off-by: Eric Anholt <eric@anholt.net>
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---
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drivers/gpu/drm/vc4/vc4_firmware_kms.c | 30 +++++++++++++++++---------
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1 file changed, 20 insertions(+), 10 deletions(-)
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--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
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+++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
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@@ -204,10 +204,6 @@ static void vc4_cursor_plane_atomic_upda
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state->crtc_y,
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0
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};
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- u32 packet_info[] = { state->crtc_w, state->crtc_h,
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- 0, /* unused */
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- bo->paddr + fb->offsets[0],
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- 0, 0, /* hotx, hoty */};
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WARN_ON_ONCE(fb->pitches[0] != state->crtc_w * 4);
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DRM_DEBUG_ATOMIC("[PLANE:%d:%s] update %dx%d cursor at %d,%d (0x%08x/%d)",
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@@ -232,12 +228,26 @@ static void vc4_cursor_plane_atomic_upda
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if (ret || packet_state[0] != 0)
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DRM_ERROR("Failed to set cursor state: 0x%08x\n", packet_state[0]);
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- ret = rpi_firmware_property(vc4->firmware,
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- RPI_FIRMWARE_SET_CURSOR_INFO,
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- &packet_info,
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- sizeof(packet_info));
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- if (ret || packet_info[0] != 0)
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- DRM_ERROR("Failed to set cursor info: 0x%08x\n", packet_info[0]);
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+ /* Note: When the cursor contents change, the modesetting
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+ * driver calls drm_mode_cursor_univeral() with
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+ * DRM_MODE_CURSOR_BO, which means a new fb will be allocated.
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+ */
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+ if (!old_state ||
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+ state->crtc_w != old_state->crtc_w ||
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+ state->crtc_h != old_state->crtc_h ||
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+ fb != old_state->fb) {
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+ u32 packet_info[] = { state->crtc_w, state->crtc_h,
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+ 0, /* unused */
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+ bo->paddr + fb->offsets[0],
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+ 0, 0, /* hotx, hoty */};
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+
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+ ret = rpi_firmware_property(vc4->firmware,
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+ RPI_FIRMWARE_SET_CURSOR_INFO,
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+ &packet_info,
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+ sizeof(packet_info));
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+ if (ret || packet_info[0] != 0)
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+ DRM_ERROR("Failed to set cursor info: 0x%08x\n", packet_info[0]);
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+ }
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}
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static void vc4_cursor_plane_atomic_disable(struct drm_plane *plane,
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