diff options
Diffstat (limited to 'drivers/gpu/drm/ast/ast_mode.c')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_mode.c | 103 |
1 files changed, 62 insertions, 41 deletions
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index 62fe682a7de6..834a156e3a75 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -514,6 +514,16 @@ static void ast_set_start_address_crt1(struct ast_private *ast, } +static void ast_wait_for_vretrace(struct ast_private *ast) +{ + unsigned long timeout = jiffies + HZ; + u8 vgair1; + + do { + vgair1 = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ); + } while (!(vgair1 & AST_IO_VGAIR1_VREFRESH) && time_before(jiffies, timeout)); +} + /* * Primary plane */ @@ -562,13 +572,24 @@ ast_primary_plane_helper_atomic_update(struct drm_plane *plane, struct drm_plane_state *state = plane->state; struct drm_gem_vram_object *gbo; s64 gpu_addr; + struct drm_framebuffer *fb = state->fb; + struct drm_framebuffer *old_fb = old_state->fb; - gbo = drm_gem_vram_of_gem(state->fb->obj[0]); + if (!old_fb || (fb->format != old_fb->format)) { + struct drm_crtc_state *crtc_state = state->crtc->state; + struct ast_crtc_state *ast_crtc_state = to_ast_crtc_state(crtc_state); + struct ast_vbios_mode_info *vbios_mode_info = &ast_crtc_state->vbios_mode_info; + + ast_set_color_reg(ast, fb->format); + ast_set_vbios_color_reg(ast, fb->format, vbios_mode_info); + } + + gbo = drm_gem_vram_of_gem(fb->obj[0]); gpu_addr = drm_gem_vram_offset(gbo); if (drm_WARN_ON_ONCE(dev, gpu_addr < 0)) return; /* Bug: we didn't pin the BO to VRAM in prepare_fb. */ - ast_set_offset_reg(ast, state->fb); + ast_set_offset_reg(ast, fb); ast_set_start_address_crt1(ast, (u32)gpu_addr); ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0x00); @@ -733,6 +754,7 @@ static void ast_crtc_dpms(struct drm_crtc *crtc, int mode) static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state) { + struct drm_device *dev = crtc->dev; struct ast_crtc_state *ast_state; const struct drm_format_info *format; bool succ; @@ -743,8 +765,8 @@ static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc, ast_state = to_ast_crtc_state(state); format = ast_state->format; - if (!format) - return 0; + if (drm_WARN_ON_ONCE(dev, !format)) + return -EINVAL; /* BUG: We didn't set format in primary check(). */ succ = ast_get_vbios_mode_info(format, &state->mode, &state->adjusted_mode, @@ -755,39 +777,17 @@ static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc, return 0; } -static void ast_crtc_helper_atomic_begin(struct drm_crtc *crtc, - struct drm_crtc_state *old_crtc_state) -{ - struct ast_private *ast = to_ast_private(crtc->dev); - - ast_open_key(ast); -} - -static void ast_crtc_helper_atomic_flush(struct drm_crtc *crtc, - struct drm_crtc_state *old_crtc_state) +static void +ast_crtc_helper_atomic_enable(struct drm_crtc *crtc, + struct drm_crtc_state *old_crtc_state) { struct drm_device *dev = crtc->dev; struct ast_private *ast = to_ast_private(dev); - struct ast_crtc_state *ast_state; - const struct drm_format_info *format; - struct ast_vbios_mode_info *vbios_mode_info; - struct drm_display_mode *adjusted_mode; - - ast_state = to_ast_crtc_state(crtc->state); - - format = ast_state->format; - if (!format) - return; - - vbios_mode_info = &ast_state->vbios_mode_info; - - ast_set_color_reg(ast, format); - ast_set_vbios_color_reg(ast, format, vbios_mode_info); - - if (!crtc->state->mode_changed) - return; - - adjusted_mode = &crtc->state->adjusted_mode; + struct drm_crtc_state *crtc_state = crtc->state; + struct ast_crtc_state *ast_crtc_state = to_ast_crtc_state(crtc_state); + struct ast_vbios_mode_info *vbios_mode_info = + &ast_crtc_state->vbios_mode_info; + struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode; ast_set_vbios_mode_reg(ast, adjusted_mode, vbios_mode_info); ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x06); @@ -796,12 +796,7 @@ static void ast_crtc_helper_atomic_flush(struct drm_crtc *crtc, ast_set_dclk_reg(ast, adjusted_mode, vbios_mode_info); ast_set_crtthd_reg(ast); ast_set_sync_reg(ast, adjusted_mode, vbios_mode_info); -} -static void -ast_crtc_helper_atomic_enable(struct drm_crtc *crtc, - struct drm_crtc_state *old_crtc_state) -{ ast_crtc_dpms(crtc, DRM_MODE_DPMS_ON); } @@ -809,13 +804,32 @@ static void ast_crtc_helper_atomic_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_crtc_state) { + struct drm_device *dev = crtc->dev; + struct ast_private *ast = to_ast_private(dev); + ast_crtc_dpms(crtc, DRM_MODE_DPMS_OFF); + + /* + * HW cursors require the underlying primary plane and CRTC to + * display a valid mode and image. This is not the case during + * full modeset operations. So we temporarily disable any active + * plane, including the HW cursor. Each plane's atomic_update() + * helper will re-enable it if necessary. + * + * We only do this during *full* modesets. It does not affect + * simple pageflips on the planes. + */ + drm_atomic_helper_disable_planes_on_crtc(old_crtc_state, false); + + /* + * Ensure that no scanout takes place before reprogramming mode + * and format registers. + */ + ast_wait_for_vretrace(ast); } static const struct drm_crtc_helper_funcs ast_crtc_helper_funcs = { .atomic_check = ast_crtc_helper_atomic_check, - .atomic_begin = ast_crtc_helper_atomic_begin, - .atomic_flush = ast_crtc_helper_atomic_flush, .atomic_enable = ast_crtc_helper_atomic_enable, .atomic_disable = ast_crtc_helper_atomic_disable, }; @@ -1054,6 +1068,11 @@ static int ast_connector_init(struct drm_device *dev) * Mode config */ +static const struct drm_mode_config_helper_funcs +ast_mode_config_helper_funcs = { + .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm, +}; + static const struct drm_mode_config_funcs ast_mode_config_funcs = { .fb_create = drm_gem_fb_create, .mode_valid = drm_vram_helper_mode_valid, @@ -1093,6 +1112,8 @@ int ast_mode_config_init(struct ast_private *ast) dev->mode_config.max_height = 1200; } + dev->mode_config.helper_private = &ast_mode_config_helper_funcs; + memset(&ast->primary_plane, 0, sizeof(ast->primary_plane)); ret = drm_universal_plane_init(dev, &ast->primary_plane, 0x01, &ast_primary_plane_funcs, |