From cb9e59d7e999c68b79f23d6016b08fc5d0bb8a8d Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 5 May 2016 16:03:57 -0400 Subject: [PATCH] drm/amdgpu: Support DRM_MODE_PAGE_FLIP_ASYNC (v2) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When this flag is set, we program the hardware to execute the flip during horizontal blank (i.e. for the next scanline) instead of during vertical blank (i.e. for the next frame). Ported from radeon commit: drm/radeon: Support DRM_MODE_PAGE_FLIP_ASYNC v2: drop DAL change for upstream Reviewed-by: Michel Dänzer Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 3 ++- drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 3 ++- drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 2 +- drivers/gpu/drm/amd/amdgpu/dce_v10_0.c | 25 +++++++++++++------- drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 26 ++++++++++++++------- drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 20 +++++++++------- 6 files changed, 52 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 6589d43bd094..ac26b13678b1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -727,6 +727,7 @@ struct amdgpu_flip_work { unsigned shared_count; struct fence **shared; struct fence_cb cb; + bool async; }; @@ -2243,7 +2244,7 @@ amdgpu_get_sdma_instance(struct amdgpu_ring *ring) #define amdgpu_display_hpd_set_polarity(adev, h) (adev)->mode_info.funcs->hpd_set_polarity((adev), (h)) #define amdgpu_display_hpd_get_gpio_reg(adev) (adev)->mode_info.funcs->hpd_get_gpio_reg((adev)) #define amdgpu_display_bandwidth_update(adev) (adev)->mode_info.funcs->bandwidth_update((adev)) -#define amdgpu_display_page_flip(adev, crtc, base) (adev)->mode_info.funcs->page_flip((adev), (crtc), (base)) +#define amdgpu_display_page_flip(adev, crtc, base, async) (adev)->mode_info.funcs->page_flip((adev), (crtc), (base), (async)) #define amdgpu_display_page_flip_get_scanoutpos(adev, crtc, vbl, pos) (adev)->mode_info.funcs->page_flip_get_scanoutpos((adev), (crtc), (vbl), (pos)) #define amdgpu_display_add_encoder(adev, e, s, c) (adev)->mode_info.funcs->add_encoder((adev), (e), (s), (c)) #define amdgpu_display_add_connector(adev, ci, sd, ct, ib, coi, h, r) (adev)->mode_info.funcs->add_connector((adev), (ci), (sd), (ct), (ib), (coi), (h), (r)) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c index c835abe65df3..726803069fef 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c @@ -132,7 +132,7 @@ static void amdgpu_flip_work_func(struct work_struct *__work) vblank->linedur_ns / 1000, stat, vpos, hpos); /* Do the flip (mmio) */ - adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base); + adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base, work->async); /* Set the flip status */ amdgpuCrtc->pflip_status = AMDGPU_FLIP_SUBMITTED; @@ -197,6 +197,7 @@ int amdgpu_crtc_page_flip(struct drm_crtc *crtc, work->event = event; work->adev = adev; work->crtc_id = amdgpu_crtc->crtc_id; + work->async = (page_flip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0; /* schedule unpin of the old buffer */ old_amdgpu_fb = to_amdgpu_framebuffer(crtc->primary->fb); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h index 8a253aa0b551..6b1d7d306564 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h @@ -283,7 +283,7 @@ struct amdgpu_display_funcs { u32 (*hpd_get_gpio_reg)(struct amdgpu_device *adev); /* pageflipping */ void (*page_flip)(struct amdgpu_device *adev, - int crtc_id, u64 crtc_base); + int crtc_id, u64 crtc_base, bool async); int (*page_flip_get_scanoutpos)(struct amdgpu_device *adev, int crtc, u32 *vbl, u32 *position); /* display topology setup */ diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c index 8af5fbc60e5b..578328860396 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c @@ -284,10 +284,16 @@ static void dce_v10_0_pageflip_interrupt_fini(struct amdgpu_device *adev) * surface base address. */ static void dce_v10_0_page_flip(struct amdgpu_device *adev, - int crtc_id, u64 crtc_base) + int crtc_id, u64 crtc_base, bool async) { struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[crtc_id]; + u32 tmp; + /* flip at hsync for async, default is vsync */ + tmp = RREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset); + tmp = REG_SET_FIELD(tmp, GRPH_FLIP_CONTROL, + GRPH_SURFACE_UPDATE_H_RETRACE_EN, async ? 1 : 0); + WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, tmp); /* update the primary scanout address */ WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset, upper_32_bits(crtc_base)); @@ -2211,6 +2217,14 @@ static int dce_v10_0_crtc_do_set_base(struct drm_crtc *crtc, dce_v10_0_vga_enable(crtc, false); + /* Make sure surface address is updated at vertical blank rather than + * horizontal blank + */ + tmp = RREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset); + tmp = REG_SET_FIELD(tmp, GRPH_FLIP_CONTROL, + GRPH_SURFACE_UPDATE_H_RETRACE_EN, 0); + WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, tmp); + WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset, upper_32_bits(fb_location)); WREG32(mmGRPH_SECONDARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset, @@ -2261,13 +2275,6 @@ static int dce_v10_0_crtc_do_set_base(struct drm_crtc *crtc, WREG32(mmVIEWPORT_SIZE + amdgpu_crtc->crtc_offset, (viewport_w << 16) | viewport_h); - /* pageflip setup */ - /* make sure flip is at vb rather than hb */ - tmp = RREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset); - tmp = REG_SET_FIELD(tmp, GRPH_FLIP_CONTROL, - GRPH_SURFACE_UPDATE_H_RETRACE_EN, 0); - WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, tmp); - /* set pageflip to happen only at start of vblank interval (front porch) */ WREG32(mmMASTER_UPDATE_MODE + amdgpu_crtc->crtc_offset, 3); @@ -2992,6 +2999,8 @@ static int dce_v10_0_sw_init(void *handle) adev->ddev->mode_config.funcs = &amdgpu_mode_funcs; + adev->ddev->mode_config.async_page_flip = true; + adev->ddev->mode_config.max_width = 16384; adev->ddev->mode_config.max_height = 16384; diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c index e7b951f00421..60bfeb1b956e 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c @@ -302,10 +302,17 @@ static void dce_v11_0_pageflip_interrupt_fini(struct amdgpu_device *adev) * surface base address. */ static void dce_v11_0_page_flip(struct amdgpu_device *adev, - int crtc_id, u64 crtc_base) + int crtc_id, u64 crtc_base, bool async) { struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[crtc_id]; + u32 tmp; + /* flip at hsync for async, default is vsync */ + /* use UPDATE_IMMEDIATE_EN instead for async? */ + tmp = RREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset); + tmp = REG_SET_FIELD(tmp, GRPH_FLIP_CONTROL, + GRPH_SURFACE_UPDATE_H_RETRACE_EN, async ? 1 : 0); + WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, tmp); /* update the scanout addresses */ WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset, upper_32_bits(crtc_base)); @@ -2185,6 +2192,14 @@ static int dce_v11_0_crtc_do_set_base(struct drm_crtc *crtc, dce_v11_0_vga_enable(crtc, false); + /* Make sure surface address is updated at vertical blank rather than + * horizontal blank + */ + tmp = RREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset); + tmp = REG_SET_FIELD(tmp, GRPH_FLIP_CONTROL, + GRPH_SURFACE_UPDATE_H_RETRACE_EN, 0); + WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, tmp); + WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset, upper_32_bits(fb_location)); WREG32(mmGRPH_SECONDARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset, @@ -2235,13 +2250,6 @@ static int dce_v11_0_crtc_do_set_base(struct drm_crtc *crtc, WREG32(mmVIEWPORT_SIZE + amdgpu_crtc->crtc_offset, (viewport_w << 16) | viewport_h); - /* pageflip setup */ - /* make sure flip is at vb rather than hb */ - tmp = RREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset); - tmp = REG_SET_FIELD(tmp, GRPH_FLIP_CONTROL, - GRPH_SURFACE_UPDATE_H_RETRACE_EN, 0); - WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, tmp); - /* set pageflip to happen only at start of vblank interval (front porch) */ WREG32(mmCRTC_MASTER_UPDATE_MODE + amdgpu_crtc->crtc_offset, 3); @@ -3042,6 +3050,8 @@ static int dce_v11_0_sw_init(void *handle) adev->ddev->mode_config.funcs = &amdgpu_mode_funcs; + adev->ddev->mode_config.async_page_flip = true; + adev->ddev->mode_config.max_width = 16384; adev->ddev->mode_config.max_height = 16384; diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c index 25e6af03c406..c73993472059 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c @@ -233,10 +233,13 @@ static void dce_v8_0_pageflip_interrupt_fini(struct amdgpu_device *adev) * surface base address. */ static void dce_v8_0_page_flip(struct amdgpu_device *adev, - int crtc_id, u64 crtc_base) + int crtc_id, u64 crtc_base, bool async) { struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[crtc_id]; + /* flip at hsync for async, default is vsync */ + WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, async ? + GRPH_FLIP_CONTROL__GRPH_SURFACE_UPDATE_H_RETRACE_EN_MASK : 0); /* update the primary scanout addresses */ WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset, upper_32_bits(crtc_base)); @@ -1999,7 +2002,7 @@ static int dce_v8_0_crtc_do_set_base(struct drm_crtc *crtc, uint32_t fb_format, fb_pitch_pixels; u32 fb_swap = (GRPH_ENDIAN_NONE << GRPH_SWAP_CNTL__GRPH_ENDIAN_SWAP__SHIFT); u32 pipe_config; - u32 tmp, viewport_w, viewport_h; + u32 viewport_w, viewport_h; int r; bool bypass_lut = false; @@ -2135,6 +2138,11 @@ static int dce_v8_0_crtc_do_set_base(struct drm_crtc *crtc, dce_v8_0_vga_enable(crtc, false); + /* Make sure surface address is updated at vertical blank rather than + * horizontal blank + */ + WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, 0); + WREG32(mmGRPH_PRIMARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset, upper_32_bits(fb_location)); WREG32(mmGRPH_SECONDARY_SURFACE_ADDRESS_HIGH + amdgpu_crtc->crtc_offset, @@ -2182,12 +2190,6 @@ static int dce_v8_0_crtc_do_set_base(struct drm_crtc *crtc, WREG32(mmVIEWPORT_SIZE + amdgpu_crtc->crtc_offset, (viewport_w << 16) | viewport_h); - /* pageflip setup */ - /* make sure flip is at vb rather than hb */ - tmp = RREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset); - tmp &= ~GRPH_FLIP_CONTROL__GRPH_SURFACE_UPDATE_H_RETRACE_EN_MASK; - WREG32(mmGRPH_FLIP_CONTROL + amdgpu_crtc->crtc_offset, tmp); - /* set pageflip to happen only at start of vblank interval (front porch) */ WREG32(mmMASTER_UPDATE_MODE + amdgpu_crtc->crtc_offset, 3); @@ -2902,6 +2904,8 @@ static int dce_v8_0_sw_init(void *handle) adev->ddev->mode_config.funcs = &amdgpu_mode_funcs; + adev->ddev->mode_config.async_page_flip = true; + adev->ddev->mode_config.max_width = 16384; adev->ddev->mode_config.max_height = 16384; -- GitLab