A call to ast's show-cursor function now receives the cursor image and updates the buffer. The change splits off image update and base-address update into separate functions. The will help with the upcoming change to VRAM buffers.
Signed-off-by: Thomas Zimmermann tzimmermann@suse.de --- drivers/gpu/drm/ast/ast_mode.c | 120 +++++++++++++++++++-------------- 1 file changed, 69 insertions(+), 51 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c index a4cbf2d5ee0a..1294f0612fd5 100644 --- a/drivers/gpu/drm/ast/ast_mode.c +++ b/drivers/gpu/drm/ast/ast_mode.c @@ -1064,23 +1064,6 @@ static void ast_i2c_destroy(struct ast_i2c_chan *i2c) kfree(i2c); }
-static void ast_show_cursor(struct drm_crtc *crtc) -{ - struct ast_private *ast = crtc->dev->dev_private; - u8 jreg; - - jreg = 0x2; - /* enable ARGB cursor */ - jreg |= 1; - ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, jreg); -} - -static void ast_hide_cursor(struct drm_crtc *crtc) -{ - struct ast_private *ast = crtc->dev->dev_private; - ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, 0x00); -} - static u32 copy_cursor_image(u8 *src, u8 *dst, int width, int height) { union { @@ -1137,6 +1120,72 @@ static u32 copy_cursor_image(u8 *src, u8 *dst, int width, int height) return csum; }
+static int ast_cursor_update(void *dst, void *src, unsigned int width, + unsigned int height) +{ + u32 csum; + + /* do data transfer to cursor cache */ + csum = copy_cursor_image(src, dst, width, height); + + /* write checksum + signature */ + dst += AST_HWC_SIZE; + writel(csum, dst); + writel(width, dst + AST_HWC_SIGNATURE_SizeX); + writel(height, dst + AST_HWC_SIGNATURE_SizeY); + writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTX); + writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTY); + + return 0; +} + +static void ast_cursor_set_base(struct ast_private *ast, u64 address) +{ + u8 addr0 = (address >> 3) & 0xff; + u8 addr1 = (address >> 11) & 0xff; + u8 addr2 = (address >> 19) & 0xff; + + ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc8, addr0); + ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc9, addr1); + ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xca, addr2); +} + +static int ast_show_cursor(struct drm_crtc *crtc, void *dst, void *src, + unsigned int width, unsigned int height, + u64 dst_gpu) +{ + struct ast_private *ast = crtc->dev->dev_private; + struct ast_crtc *ast_crtc = to_ast_crtc(crtc); + int ret; + u8 jreg; + + dst += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor; + + ret = ast_cursor_update(dst, src, width, height); + if (ret) + return ret; + ast_cursor_set_base(ast, dst_gpu); + + ast->next_cursor = (ast->next_cursor + 1) % AST_DEFAULT_HWC_NUM; + + ast_crtc->offset_x = AST_MAX_HWC_WIDTH - width; + ast_crtc->offset_y = AST_MAX_HWC_WIDTH - height; + + jreg = 0x2; + /* enable ARGB cursor */ + jreg |= 1; + ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, jreg); + + return 0; +} + +static void ast_hide_cursor(struct drm_crtc *crtc) +{ + struct ast_private *ast = crtc->dev->dev_private; + + ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, 0x00); +} + static int ast_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv, uint32_t handle, @@ -1144,12 +1193,9 @@ static int ast_cursor_set(struct drm_crtc *crtc, uint32_t height) { struct ast_private *ast = crtc->dev->dev_private; - struct ast_crtc *ast_crtc = to_ast_crtc(crtc); struct drm_gem_object *obj; struct drm_gem_vram_object *gbo; s64 dst_gpu; - u64 gpu_addr; - u32 csum; int ret; u8 *src, *dst;
@@ -1185,37 +1231,9 @@ static int ast_cursor_set(struct drm_crtc *crtc, goto err_drm_gem_vram_vunmap; }
- dst += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor; - - /* do data transfer to cursor cache */ - csum = copy_cursor_image(src, dst, width, height); - - /* write checksum + signature */ - { - struct drm_gem_vram_object *dst_gbo = - drm_gem_vram_of_gem(ast->cursor_cache); - u8 *dst = drm_gem_vram_kmap(dst_gbo, false, NULL); - dst += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor + AST_HWC_SIZE; - writel(csum, dst); - writel(width, dst + AST_HWC_SIGNATURE_SizeX); - writel(height, dst + AST_HWC_SIGNATURE_SizeY); - writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTX); - writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTY); - - /* set pattern offset */ - gpu_addr = (u64)dst_gpu; - gpu_addr += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor; - gpu_addr >>= 3; - ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc8, gpu_addr & 0xff); - ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc9, (gpu_addr >> 8) & 0xff); - ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xca, (gpu_addr >> 16) & 0xff); - } - ast_crtc->offset_x = AST_MAX_HWC_WIDTH - width; - ast_crtc->offset_y = AST_MAX_HWC_WIDTH - height; - - ast->next_cursor = (ast->next_cursor + 1) % AST_DEFAULT_HWC_NUM; - - ast_show_cursor(crtc); + ret = ast_show_cursor(crtc, dst, src, width, height, dst_gpu); + if (ret) + goto err_drm_gem_vram_kunmap;
drm_gem_vram_vunmap(gbo, src); drm_gem_object_put_unlocked(obj);