On Mon, Oct 28, 2019 at 04:49:28PM +0100, Thomas Zimmermann wrote:
> This commit sets the remaining atomic-modesetting helpers and the flag
> DRIVER_ATOMIC. Legacy cursor functions are removed in favor of the cursor
> plane. For power management, atomic helpers replace the indvidual
> operations that the driver currently runs.
>
> Atomic modesetting is enabled with this commit.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
> ---
> drivers/gpu/drm/ast/ast_drv.c | 24 ++-
> drivers/gpu/drm/ast/ast_main.c | 5 +
> drivers/gpu/drm/ast/ast_mode.c | 290 ++-------------------------------
> 3 files changed, 33 insertions(+), 286 deletions(-)
>
> diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
> index 1f17794b0890..d763da6f0834 100644
> --- a/drivers/gpu/drm/ast/ast_drv.c
> +++ b/drivers/gpu/drm/ast/ast_drv.c
> @@ -99,14 +99,14 @@ ast_pci_remove(struct pci_dev *pdev)
> drm_put_dev(dev);
> }
>
> -
> -
> static int ast_drm_freeze(struct drm_device *dev)
> {
> - drm_kms_helper_poll_disable(dev);
> - pci_save_state(dev->pdev);
> - drm_fb_helper_set_suspend_unlocked(dev->fb_helper, true);
> + int error;
>
> + error = drm_mode_config_helper_suspend(dev);
> + if (error)
> + return error;
> + pci_save_state(dev->pdev);
> return 0;
> }
>
> @@ -114,11 +114,7 @@ static int ast_drm_thaw(struct drm_device *dev)
> {
> ast_post_gpu(dev);
>
> - drm_mode_config_reset(dev);
> - drm_helper_resume_force_mode(dev);
> - drm_fb_helper_set_suspend_unlocked(dev->fb_helper, false);
> -
> - return 0;
> + return drm_mode_config_helper_resume(dev);
> }
>
> static int ast_drm_resume(struct drm_device *dev)
> @@ -131,8 +127,6 @@ static int ast_drm_resume(struct drm_device *dev)
> ret = ast_drm_thaw(dev);
> if (ret)
> return ret;
> -
> - drm_kms_helper_poll_enable(dev);
> return 0;
> }
>
> @@ -150,6 +144,7 @@ static int ast_pm_suspend(struct device *dev)
> pci_set_power_state(pdev, PCI_D3hot);
> return 0;
> }
> +
> static int ast_pm_resume(struct device *dev)
> {
> struct pci_dev *pdev = to_pci_dev(dev);
> @@ -165,7 +160,6 @@ static int ast_pm_freeze(struct device *dev)
> if (!ddev || !ddev->dev_private)
> return -ENODEV;
> return ast_drm_freeze(ddev);
> -
> }
>
> static int ast_pm_thaw(struct device *dev)
> @@ -203,7 +197,9 @@ static struct pci_driver ast_pci_driver = {
> DEFINE_DRM_GEM_FOPS(ast_fops);
>
> static struct drm_driver driver = {
> - .driver_features = DRIVER_MODESET | DRIVER_GEM,
> + .driver_features = DRIVER_ATOMIC |
> + DRIVER_GEM |
> + DRIVER_MODESET,
>
> .load = ast_driver_load,
> .unload = ast_driver_unload,
> diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
> index 48d57ab42955..b79f484e9bd2 100644
> --- a/drivers/gpu/drm/ast/ast_main.c
> +++ b/drivers/gpu/drm/ast/ast_main.c
> @@ -28,6 +28,7 @@
>
> #include <linux/pci.h>
>
> +#include <drm/drm_atomic_helper.h>
> #include <drm/drm_crtc_helper.h>
> #include <drm/drm_fb_helper.h>
> #include <drm/drm_gem.h>
> @@ -412,6 +413,8 @@ enum drm_mode_status ast_mode_config_mode_valid(struct drm_device *dev,
> static const struct drm_mode_config_funcs ast_mode_funcs = {
> .fb_create = drm_gem_fb_create,
> .mode_valid = ast_mode_config_mode_valid,
> + .atomic_check = drm_atomic_helper_check,
> + .atomic_commit = drm_atomic_helper_commit,
> };
>
> static u32 ast_get_vram_info(struct drm_device *dev)
> @@ -529,6 +532,8 @@ int ast_driver_load(struct drm_device *dev, unsigned long flags)
> if (ret)
> goto out_free;
>
> + drm_mode_config_reset(dev);
> +
> ret = drm_fbdev_generic_setup(dev, 32);
> if (ret)
> goto out_free;
> diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
> index f5f73200e8e4..5eccb6ae2ede 100644
> --- a/drivers/gpu/drm/ast/ast_mode.c
> +++ b/drivers/gpu/drm/ast/ast_mode.c
> @@ -45,11 +45,6 @@
>
> static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev);
> static void ast_i2c_destroy(struct ast_i2c_chan *i2c);
> -static int ast_cursor_set(struct drm_crtc *crtc,
> - struct drm_file *file_priv,
> - uint32_t handle,
> - uint32_t width,
> - uint32_t height);
> static int ast_cursor_move(struct drm_crtc *crtc,
> int x, int y);
>
> @@ -58,9 +53,6 @@ static u32 copy_cursor_image(u8 *src, u8 *dst, int width, int height);
> static int ast_cursor_update(void *dst, void *src, unsigned int width,
> unsigned int height);
> static void ast_cursor_set_base(struct ast_private *ast, u64 address);
> -static int ast_show_cursor(struct drm_crtc *crtc, void *src,
> - unsigned int width, unsigned int height);
> -static void ast_hide_cursor(struct drm_crtc *crtc);
> static int ast_cursor_move(struct drm_crtc *crtc,
> int x, int y);
>
> @@ -434,7 +426,7 @@ static void ast_set_crtc_reg(struct drm_crtc *crtc, struct drm_display_mode *mod
> static void ast_set_offset_reg(struct drm_crtc *crtc)
> {
> struct ast_private *ast = crtc->dev->dev_private;
> - const struct drm_framebuffer *fb = crtc->primary->fb;
> + const struct drm_framebuffer *fb = crtc->primary->state->fb;
>
> u16 offset;
>
> @@ -528,7 +520,7 @@ static void ast_set_sync_reg(struct drm_device *dev, struct drm_display_mode *mo
> static bool ast_set_dac_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
> struct ast_vbios_mode_info *vbios_mode)
> {
> - const struct drm_framebuffer *fb = crtc->primary->fb;
> + const struct drm_framebuffer *fb = crtc->primary->state->fb;
>
> switch (fb->format->cpp[0] * 8) {
> case 8:
> @@ -765,112 +757,6 @@ static void ast_crtc_dpms(struct drm_crtc *crtc, int mode)
> }
> }
>
> -static int ast_crtc_do_set_base(struct drm_crtc *crtc,
> - struct drm_framebuffer *fb,
> - int x, int y, int atomic)
> -{
> - struct drm_gem_vram_object *gbo;
> - int ret;
> - s64 gpu_addr;
> -
> - if (!atomic && fb) {
> - gbo = drm_gem_vram_of_gem(fb->obj[0]);
> - drm_gem_vram_unpin(gbo);
> - }
> -
> - gbo = drm_gem_vram_of_gem(crtc->primary->fb->obj[0]);
> -
> - ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM);
> - if (ret)
> - return ret;
> - gpu_addr = drm_gem_vram_offset(gbo);
> - if (gpu_addr < 0) {
> - ret = (int)gpu_addr;
> - goto err_drm_gem_vram_unpin;
> - }
> -
> - ast_set_offset_reg(crtc);
> - ast_set_start_address_crt1(crtc, (u32)gpu_addr);
> -
> - return 0;
> -
> -err_drm_gem_vram_unpin:
> - drm_gem_vram_unpin(gbo);
> - return ret;
> -}
> -
> -static int ast_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
> - struct drm_framebuffer *old_fb)
> -{
> - return ast_crtc_do_set_base(crtc, old_fb, x, y, 0);
> -}
> -
> -static int ast_crtc_mode_set(struct drm_crtc *crtc,
> - struct drm_display_mode *mode,
> - struct drm_display_mode *adjusted_mode,
> - int x, int y,
> - struct drm_framebuffer *old_fb)
> -{
> - struct drm_device *dev = crtc->dev;
> - struct ast_private *ast = crtc->dev->dev_private;
> - const struct drm_framebuffer *fb = crtc->primary->fb;
> - struct ast_vbios_mode_info vbios_mode;
> - bool succ;
> -
> - if (ast->chip == AST1180) {
> - DRM_ERROR("AST 1180 modesetting not supported\n");
> - return -EINVAL;
> - }
> -
> - succ = ast_get_vbios_mode_info(fb, mode, adjusted_mode, &vbios_mode);
> - if (!succ)
> - return -EINVAL;
> -
> - ast_open_key(ast);
> -
> - ast_set_vbios_color_reg(crtc, fb, &vbios_mode);
> - ast_set_vbios_mode_reg(crtc, adjusted_mode, &vbios_mode);
> - ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x06);
> - ast_set_std_reg(crtc, adjusted_mode, &vbios_mode);
> - ast_set_crtc_reg(crtc, adjusted_mode, &vbios_mode);
> - ast_set_offset_reg(crtc);
> - ast_set_dclk_reg(dev, adjusted_mode, &vbios_mode);
> - ast_set_color_reg(crtc, fb);
> - ast_set_crtthd_reg(crtc);
> - ast_set_sync_reg(dev, adjusted_mode, &vbios_mode);
> - ast_set_dac_reg(crtc, adjusted_mode, &vbios_mode);
> -
> - ast_crtc_mode_set_base(crtc, x, y, old_fb);
> -
> - return 0;
> -}
> -
> -static void ast_crtc_disable(struct drm_crtc *crtc)
> -{
> - DRM_DEBUG_KMS("\n");
> - ast_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
> - if (crtc->primary->fb) {
> - struct drm_framebuffer *fb = crtc->primary->fb;
> - struct drm_gem_vram_object *gbo =
> - drm_gem_vram_of_gem(fb->obj[0]);
> -
> - drm_gem_vram_unpin(gbo);
> - }
> - crtc->primary->fb = NULL;
> -}
> -
> -static void ast_crtc_prepare(struct drm_crtc *crtc)
> -{
> -
> -}
> -
> -static void ast_crtc_commit(struct drm_crtc *crtc)
> -{
> - struct ast_private *ast = crtc->dev->dev_private;
> - ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0);
> - ast_crtc_load_lut(crtc);
> -}
> -
> static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc,
> struct drm_crtc_state *state)
> {
> @@ -970,12 +856,6 @@ ast_crtc_helper_atomic_disable(struct drm_crtc *crtc,
> }
>
> static const struct drm_crtc_helper_funcs ast_crtc_helper_funcs = {
> - .dpms = ast_crtc_dpms,
> - .mode_set = ast_crtc_mode_set,
> - .mode_set_base = ast_crtc_mode_set_base,
> - .disable = ast_crtc_disable,
> - .prepare = ast_crtc_prepare,
> - .commit = ast_crtc_commit,
> .atomic_check = ast_crtc_helper_atomic_check,
> .atomic_begin = ast_crtc_helper_atomic_begin,
> .atomic_flush = ast_crtc_helper_atomic_flush,
> @@ -983,21 +863,6 @@ static const struct drm_crtc_helper_funcs ast_crtc_helper_funcs = {
> .atomic_disable = ast_crtc_helper_atomic_disable,
> };
>
> -static void ast_crtc_reset(struct drm_crtc *crtc)
> -{
> -
> -}
> -
> -static int ast_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
> - u16 *blue, uint32_t size,
> - struct drm_modeset_acquire_ctx *ctx)
> -{
> - ast_crtc_load_lut(crtc);
> -
> - return 0;
> -}
> -
> -
> static void ast_crtc_destroy(struct drm_crtc *crtc)
> {
> drm_crtc_cleanup(crtc);
> @@ -1005,12 +870,12 @@ static void ast_crtc_destroy(struct drm_crtc *crtc)
> }
>
> static const struct drm_crtc_funcs ast_crtc_funcs = {
> - .cursor_set = ast_cursor_set,
> - .cursor_move = ast_cursor_move,
> - .reset = ast_crtc_reset,
> + .reset = drm_atomic_helper_crtc_reset,
> .set_config = drm_crtc_helper_set_config,
> - .gamma_set = ast_crtc_gamma_set,
> + .gamma_set = drm_atomic_helper_legacy_gamma_set,
> .destroy = ast_crtc_destroy,
> + .set_config = drm_atomic_helper_set_config,
> + .page_flip = drm_atomic_helper_page_flip,
> .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
> .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
> };
> @@ -1040,6 +905,10 @@ static int ast_crtc_init(struct drm_device *dev)
> return ret;
> }
>
> +/*
> + * Encoder
> + */
> +
> static void ast_encoder_destroy(struct drm_encoder *encoder)
> {
> drm_encoder_cleanup(encoder);
> @@ -1050,34 +919,6 @@ static const struct drm_encoder_funcs ast_enc_funcs = {
> .destroy = ast_encoder_destroy,
> };
>
> -static void ast_encoder_dpms(struct drm_encoder *encoder, int mode)
> -{
> -
> -}
> -
> -static void ast_encoder_mode_set(struct drm_encoder *encoder,
> - struct drm_display_mode *mode,
> - struct drm_display_mode *adjusted_mode)
> -{
> -}
> -
> -static void ast_encoder_prepare(struct drm_encoder *encoder)
> -{
> -
> -}
> -
> -static void ast_encoder_commit(struct drm_encoder *encoder)
> -{
> -
> -}
> -
> -static const struct drm_encoder_helper_funcs ast_enc_helper_funcs = {
> - .dpms = ast_encoder_dpms,
> - .prepare = ast_encoder_prepare,
> - .commit = ast_encoder_commit,
> - .mode_set = ast_encoder_mode_set,
> -};
Hmm. Pretty much a dummy encoder implementation. Maybe ast is simple
enough that the simple pipe helpers can do the trick?
cheers,
Gerd
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