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drm/amdgpu: Support DRM_MODE_PAGE_FLIP_ASYNC (v2) 

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 <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2016-05-05 16:03:57 -04:00
parent a71dd89759
commit cb9e59d7e9
6 changed files with 52 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -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))

3
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
View File

@ -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);

2
drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
View File

@ -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 */

25
drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
View File

@ -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;

26
drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
View File

@ -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;

20
drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
View File

@ -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;