From 77224cd59eae67acfc1259f0756957b10ec7c3b5 Mon Sep 17 00:00:00 2001 From: Chandra Konduru Date: Mon, 9 Apr 2018 09:11:13 +0530 Subject: drm/i915: Upscale scaler max scale for NV12 This patch updates scaler max limit support for NV12 v2: Rebased (me) v3: Rebased (me) v4: Missed the Tested-by/Reviewed-by in the previous series Adding the same to commit message in this version. v5: Addressed review comments from Ville and rebased - calculation of max_scale to be made less convoluted by splitting it up a bit - Indentation errors to be fixed in the series v6: Rebased (me) Fixed review comments from Paauwe, Bob J Previous version, where a split of calculation was done, was wrong. Fixed that issue here. v7: Rebased (me) v8: Rebased (me) v9: Rebased (me) v10: Rebased (me) v11: Addressed review comments from Shashank Sharma Alignment issues fixed. When call to skl_update_scaler is made, 0 was being sent instead of pixel_format. When crtc update scaler is called, we dont have the fb to derive the pixel format. Added the function parameter bool plane_scaler_check to account for this. v12: Fixed failure in IGT debugfs_test. fb is NULL in skl_update_scaler_plane Due to this, accessing fb->format caused failure. Patch checks fb before using. v13: In the previous version there was a flaw. In skl_update_scaler during plane_scaler_check if the format was non-NV12, it would set need_scaling to false. This could reset the previously set need_scaling from a previous condition check. Patch fixes this. Patch also adds minimum src height for YUV 420 formats to 16 (as defined in BSpec) and adds for checking this range. v14: Addressed review comments from Maarten Just add a check for NV12 min src height in skl_update_scaler and retain the remaining checks as is. Added Reviewed By from Juha-Pekka Heikkila. v15: Rebased the series. v16: Changed fb height restriction to be >= 16 as per Bspec. Earlier it was > 16. v17: Adding src width and height to be mult of 4 restriction to avoid pipe fifo underruns for NV12. Credits-to: Maarten Lankhorst Tested-by: Clinton Taylor Reviewed-by: Clinton Taylor Reviewed-by: Juha-Pekka Heikkila Signed-off-by: Chandra Konduru Signed-off-by: Nabendu Maiti Signed-off-by: Vidya Srinivas Reviewed-by: Maarten Lankhorst Signed-off-by: Maarten Lankhorst Link: https://patchwork.freedesktop.org/patch/msgid/1523245273-30264-15-git-send-email-vidya.srinivas@intel.com --- drivers/gpu/drm/i915/intel_display.c | 48 +++++++++++++++++++++++++++--------- drivers/gpu/drm/i915/intel_drv.h | 5 +++- drivers/gpu/drm/i915/intel_sprite.c | 6 ++++- 3 files changed, 46 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index eb9d4e7f9160..fec3d6dd5c60 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3483,6 +3483,8 @@ static u32 skl_plane_ctl_format(uint32_t pixel_format) return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_UYVY; case DRM_FORMAT_VYUY: return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_VYUY; + case DRM_FORMAT_NV12: + return PLANE_CTL_FORMAT_NV12; default: MISSING_CASE(pixel_format); } @@ -4724,7 +4726,9 @@ static void cpt_verify_modeset(struct drm_device *dev, int pipe) static int skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach, unsigned int scaler_user, int *scaler_id, - int src_w, int src_h, int dst_w, int dst_h) + int src_w, int src_h, int dst_w, int dst_h, + bool plane_scaler_check, + uint32_t pixel_format) { struct intel_crtc_scaler_state *scaler_state = &crtc_state->scaler_state; @@ -4742,6 +4746,10 @@ skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach, */ need_scaling = src_w != dst_w || src_h != dst_h; + if (plane_scaler_check) + if (pixel_format == DRM_FORMAT_NV12) + need_scaling = true; + if (crtc_state->ycbcr420 && scaler_user == SKL_CRTC_INDEX) need_scaling = true; @@ -4781,6 +4789,13 @@ skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach, return 0; } + if (plane_scaler_check && pixel_format == DRM_FORMAT_NV12 && + (src_h < SKL_MIN_YUV_420_SRC_H || (src_w % 4) != 0 || + (src_h % 4) != 0)) { + DRM_DEBUG_KMS("NV12: src dimensions not met\n"); + return -EINVAL; + } + /* range checks */ if (src_w < SKL_MIN_SRC_W || src_h < SKL_MIN_SRC_H || dst_w < SKL_MIN_DST_W || dst_h < SKL_MIN_DST_H || @@ -4820,9 +4835,10 @@ int skl_update_scaler_crtc(struct intel_crtc_state *state) const struct drm_display_mode *adjusted_mode = &state->base.adjusted_mode; return skl_update_scaler(state, !state->base.active, SKL_CRTC_INDEX, - &state->scaler_state.scaler_id, - state->pipe_src_w, state->pipe_src_h, - adjusted_mode->crtc_hdisplay, adjusted_mode->crtc_vdisplay); + &state->scaler_state.scaler_id, + state->pipe_src_w, state->pipe_src_h, + adjusted_mode->crtc_hdisplay, + adjusted_mode->crtc_vdisplay, false, 0); } /** @@ -4851,7 +4867,8 @@ static int skl_update_scaler_plane(struct intel_crtc_state *crtc_state, drm_rect_width(&plane_state->base.src) >> 16, drm_rect_height(&plane_state->base.src) >> 16, drm_rect_width(&plane_state->base.dst), - drm_rect_height(&plane_state->base.dst)); + drm_rect_height(&plane_state->base.dst), + fb ? true : false, fb ? fb->format->format : 0); if (ret || plane_state->scaler_id < 0) return ret; @@ -4877,6 +4894,7 @@ static int skl_update_scaler_plane(struct intel_crtc_state *crtc_state, case DRM_FORMAT_YVYU: case DRM_FORMAT_UYVY: case DRM_FORMAT_VYUY: + case DRM_FORMAT_NV12: break; default: DRM_DEBUG_KMS("[PLANE:%d:%s] FB:%d unsupported scaling format 0x%x\n", @@ -12877,11 +12895,13 @@ intel_cleanup_plane_fb(struct drm_plane *plane, } int -skl_max_scale(struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state) +skl_max_scale(struct intel_crtc *intel_crtc, + struct intel_crtc_state *crtc_state, + uint32_t pixel_format) { struct drm_i915_private *dev_priv; - int max_scale; - int crtc_clock, max_dotclk; + int max_scale, mult; + int crtc_clock, max_dotclk, tmpclk1, tmpclk2; if (!intel_crtc || !crtc_state->base.enable) return DRM_PLANE_HELPER_NO_SCALING; @@ -12903,8 +12923,10 @@ skl_max_scale(struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state * or * cdclk/crtc_clock */ - max_scale = min((1 << 16) * 3 - 1, - (1 << 8) * ((max_dotclk << 8) / crtc_clock)); + mult = pixel_format == DRM_FORMAT_NV12 ? 2 : 3; + tmpclk1 = (1 << 16) * mult - 1; + tmpclk2 = (1 << 8) * ((max_dotclk << 8) / crtc_clock); + max_scale = min(tmpclk1, tmpclk2); return max_scale; } @@ -12920,12 +12942,16 @@ intel_check_primary_plane(struct intel_plane *plane, int max_scale = DRM_PLANE_HELPER_NO_SCALING; bool can_position = false; int ret; + uint32_t pixel_format = 0; if (INTEL_GEN(dev_priv) >= 9) { /* use scaler when colorkey is not required */ if (!state->ckey.flags) { min_scale = 1; - max_scale = skl_max_scale(to_intel_crtc(crtc), crtc_state); + if (state->base.fb) + pixel_format = state->base.fb->format->format; + max_scale = skl_max_scale(to_intel_crtc(crtc), + crtc_state, pixel_format); } can_position = true; } diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index a6d7d856ea62..b2e0fa04ef5b 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -552,6 +552,8 @@ struct intel_initial_plane_config { #define ICL_MAX_SRC_H 4096 #define ICL_MAX_DST_W 5120 #define ICL_MAX_DST_H 4096 +#define SKL_MIN_YUV_420_SRC_W 16 +#define SKL_MIN_YUV_420_SRC_H 16 struct intel_scaler { int in_use; @@ -1597,7 +1599,8 @@ void intel_mode_from_pipe_config(struct drm_display_mode *mode, struct intel_crtc_state *pipe_config); int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state); -int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state); +int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state, + uint32_t pixel_format); static inline u32 intel_plane_ggtt_offset(const struct intel_plane_state *state) { diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index 0652e583b03d..aa1dfaa692b9 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -947,6 +947,7 @@ intel_check_sprite_plane(struct intel_plane *plane, int max_scale, min_scale; bool can_scale; int ret; + uint32_t pixel_format = 0; *src = drm_plane_state_src(&state->base); *dst = drm_plane_state_dest(&state->base); @@ -970,11 +971,14 @@ intel_check_sprite_plane(struct intel_plane *plane, /* setup can_scale, min_scale, max_scale */ if (INTEL_GEN(dev_priv) >= 9) { + if (state->base.fb) + pixel_format = state->base.fb->format->format; /* use scaler when colorkey is not required */ if (!state->ckey.flags) { can_scale = 1; min_scale = 1; - max_scale = skl_max_scale(crtc, crtc_state); + max_scale = + skl_max_scale(crtc, crtc_state, pixel_format); } else { can_scale = 0; min_scale = DRM_PLANE_HELPER_NO_SCALING; -- cgit v1.2.3