drm/msm/mdp4+5: move aspace/id to base class

Before we can shift to passing the address-space object to _get_iova(),
we need to fix a few places (dsi+fbdev) that were hard-coding the adress
space id.  That gets somewhat easier if we just move these to the kms
base class.

Prep work for next patch.

Signed-off-by: Rob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/dsi/dsi_host.c

@@ -32,6 +32,7 @@
 #include "dsi.xml.h"
 #include "sfpb.xml.h"
 #include "dsi_cfg.h"
+#include "msm_kms.h"
 
 static int dsi_get_version(const void __iomem *base, u32 *major, u32 *minor)
 {
@@ -975,6 +976,7 @@ static void dsi_wait4video_eng_busy(struct msm_dsi_host *msm_host)
 static int dsi_tx_buf_alloc(struct msm_dsi_host *msm_host, int size)
 {
 	struct drm_device *dev = msm_host->dev;
+	struct msm_drm_private *priv = dev->dev_private;
 	const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
 	int ret;
 	uint64_t iova;
@@ -991,7 +993,8 @@ static int dsi_tx_buf_alloc(struct msm_dsi_host *msm_host, int size)
 			return ret;
 		}
 
-		ret = msm_gem_get_iova_locked(msm_host->tx_gem_obj, 0, &iova);
+		ret = msm_gem_get_iova_locked(msm_host->tx_gem_obj,
+				priv->kms->id, &iova);
 		mutex_unlock(&dev->struct_mutex);
 		if (ret) {
 			pr_err("%s: failed to get iova, %d\n", __func__, ret);
@@ -1141,12 +1144,15 @@ static int dsi_long_read_resp(u8 *buf, const struct mipi_dsi_msg *msg)
 static int dsi_cmd_dma_tx(struct msm_dsi_host *msm_host, int len)
 {
 	const struct msm_dsi_cfg_handler *cfg_hnd = msm_host->cfg_hnd;
+	struct drm_device *dev = msm_host->dev;
+	struct msm_drm_private *priv = dev->dev_private;
 	int ret;
 	uint64_t dma_base;
 	bool triggered;
 
 	if (cfg_hnd->major == MSM_DSI_VER_MAJOR_6G) {
-		ret = msm_gem_get_iova(msm_host->tx_gem_obj, 0, &dma_base);
+		ret = msm_gem_get_iova(msm_host->tx_gem_obj,
+				priv->kms->id, &dma_base);
 		if (ret) {
 			pr_err("%s: failed to get iova: %d\n", __func__, ret);
 			return ret;

drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c

@@ -126,8 +126,9 @@ static void unref_cursor_worker(struct drm_flip_work *work, void *val)
 	struct mdp4_crtc *mdp4_crtc =
 		container_of(work, struct mdp4_crtc, unref_cursor_work);
 	struct mdp4_kms *mdp4_kms = get_kms(&mdp4_crtc->base);
+	struct msm_kms *kms = &mdp4_kms->base.base;
 
-	msm_gem_put_iova(val, mdp4_kms->id);
+	msm_gem_put_iova(val, kms->id);
 	drm_gem_object_unreference_unlocked(val);
 }
 
@@ -360,6 +361,7 @@ static void update_cursor(struct drm_crtc *crtc)
 {
 	struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc);
 	struct mdp4_kms *mdp4_kms = get_kms(crtc);
+	struct msm_kms *kms = &mdp4_kms->base.base;
 	enum mdp4_dma dma = mdp4_crtc->dma;
 	unsigned long flags;
 
@@ -372,7 +374,7 @@ static void update_cursor(struct drm_crtc *crtc)
 		if (next_bo) {
 			/* take a obj ref + iova ref when we start scanning out: */
 			drm_gem_object_reference(next_bo);
-			msm_gem_get_iova_locked(next_bo, mdp4_kms->id, &iova);
+			msm_gem_get_iova_locked(next_bo, kms->id, &iova);
 
 			/* enable cursor: */
 			mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_SIZE(dma),
@@ -409,6 +411,7 @@ static int mdp4_crtc_cursor_set(struct drm_crtc *crtc,
 {
 	struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc);
 	struct mdp4_kms *mdp4_kms = get_kms(crtc);
+	struct msm_kms *kms = &mdp4_kms->base.base;
 	struct drm_device *dev = crtc->dev;
 	struct drm_gem_object *cursor_bo, *old_bo;
 	unsigned long flags;
@@ -429,7 +432,7 @@ static int mdp4_crtc_cursor_set(struct drm_crtc *crtc,
 	}
 
 	if (cursor_bo) {
-		ret = msm_gem_get_iova(cursor_bo, mdp4_kms->id, &iova);
+		ret = msm_gem_get_iova(cursor_bo, kms->id, &iova);
 		if (ret)
 			goto fail;
 	} else {

drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c

@@ -160,10 +160,10 @@ static void mdp4_destroy(struct msm_kms *kms)
 {
 	struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
 	struct device *dev = mdp4_kms->dev->dev;
-	struct msm_gem_address_space *aspace = mdp4_kms->aspace;
+	struct msm_gem_address_space *aspace = kms->aspace;
 
 	if (mdp4_kms->blank_cursor_iova)
-		msm_gem_put_iova(mdp4_kms->blank_cursor_bo, mdp4_kms->id);
+		msm_gem_put_iova(mdp4_kms->blank_cursor_bo, kms->id);
 	drm_gem_object_unreference_unlocked(mdp4_kms->blank_cursor_bo);
 
 	if (aspace) {
@@ -510,7 +510,7 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev)
 			goto fail;
 		}
 
-		mdp4_kms->aspace = aspace;
+		kms->aspace = aspace;
 
 		ret = aspace->mmu->funcs->attach(aspace->mmu, iommu_ports,
 				ARRAY_SIZE(iommu_ports));
@@ -522,9 +522,9 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev)
 		aspace = NULL;
 	}
 
-	mdp4_kms->id = msm_register_address_space(dev, aspace);
-	if (mdp4_kms->id < 0) {
-		ret = mdp4_kms->id;
+	kms->id = msm_register_address_space(dev, aspace);
+	if (kms->id < 0) {
+		ret = kms->id;
 		dev_err(dev->dev, "failed to register mdp4 iommu: %d\n", ret);
 		goto fail;
 	}
@@ -545,7 +545,7 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev)
 		goto fail;
 	}
 
-	ret = msm_gem_get_iova(mdp4_kms->blank_cursor_bo, mdp4_kms->id,
+	ret = msm_gem_get_iova(mdp4_kms->blank_cursor_bo, kms->id,
 			&mdp4_kms->blank_cursor_iova);
 	if (ret) {
 		dev_err(dev->dev, "could not pin blank-cursor bo: %d\n", ret);

drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h

@@ -34,9 +34,6 @@ struct mdp4_kms {
 
 	int rev;
 
-	/* mapper-id used to request GEM buffer mapped for scanout: */
-	int id;
-
 	void __iomem *mmio;
 
 	struct regulator *vdd;
@@ -45,7 +42,6 @@ struct mdp4_kms {
 	struct clk *pclk;
 	struct clk *lut_clk;
 	struct clk *axi_clk;
-	struct msm_gem_address_space *aspace;
 
 	struct mdp_irq error_handler;
 

drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c

@@ -103,13 +103,14 @@ static int mdp4_plane_prepare_fb(struct drm_plane *plane,
 {
 	struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
 	struct mdp4_kms *mdp4_kms = get_kms(plane);
+	struct msm_kms *kms = &mdp4_kms->base.base;
 	struct drm_framebuffer *fb = new_state->fb;
 
 	if (!fb)
 		return 0;
 
 	DBG("%s: prepare: FB[%u]", mdp4_plane->name, fb->base.id);
-	return msm_framebuffer_prepare(fb, mdp4_kms->id);
+	return msm_framebuffer_prepare(fb, kms->id);
 }
 
 static void mdp4_plane_cleanup_fb(struct drm_plane *plane,
@@ -117,13 +118,14 @@ static void mdp4_plane_cleanup_fb(struct drm_plane *plane,
 {
 	struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
 	struct mdp4_kms *mdp4_kms = get_kms(plane);
+	struct msm_kms *kms = &mdp4_kms->base.base;
 	struct drm_framebuffer *fb = old_state->fb;
 
 	if (!fb)
 		return;
 
 	DBG("%s: cleanup: FB[%u]", mdp4_plane->name, fb->base.id);
-	msm_framebuffer_cleanup(fb, mdp4_kms->id);
+	msm_framebuffer_cleanup(fb, kms->id);
 }
 
 
@@ -161,6 +163,7 @@ static void mdp4_plane_set_scanout(struct drm_plane *plane,
 {
 	struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
 	struct mdp4_kms *mdp4_kms = get_kms(plane);
+	struct msm_kms *kms = &mdp4_kms->base.base;
 	enum mdp4_pipe pipe = mdp4_plane->pipe;
 
 	mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_STRIDE_A(pipe),
@@ -172,13 +175,13 @@ static void mdp4_plane_set_scanout(struct drm_plane *plane,
 			MDP4_PIPE_SRC_STRIDE_B_P3(fb->pitches[3]));
 
 	mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP0_BASE(pipe),
-			msm_framebuffer_iova(fb, mdp4_kms->id, 0));
+			msm_framebuffer_iova(fb, kms->id, 0));
 	mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP1_BASE(pipe),
-			msm_framebuffer_iova(fb, mdp4_kms->id, 1));
+			msm_framebuffer_iova(fb, kms->id, 1));
 	mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP2_BASE(pipe),
-			msm_framebuffer_iova(fb, mdp4_kms->id, 2));
+			msm_framebuffer_iova(fb, kms->id, 2));
 	mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP3_BASE(pipe),
-			msm_framebuffer_iova(fb, mdp4_kms->id, 3));
+			msm_framebuffer_iova(fb, kms->id, 3));
 
 	plane->fb = fb;
 }

drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c

@@ -160,8 +160,9 @@ static void unref_cursor_worker(struct drm_flip_work *work, void *val)
 	struct mdp5_crtc *mdp5_crtc =
 		container_of(work, struct mdp5_crtc, unref_cursor_work);
 	struct mdp5_kms *mdp5_kms = get_kms(&mdp5_crtc->base);
+	struct msm_kms *kms = &mdp5_kms->base.base;
 
-	msm_gem_put_iova(val, mdp5_kms->id);
+	msm_gem_put_iova(val, kms->id);
 	drm_gem_object_unreference_unlocked(val);
 }
 
@@ -724,6 +725,7 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 	struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
 	struct drm_device *dev = crtc->dev;
 	struct mdp5_kms *mdp5_kms = get_kms(crtc);
+	struct msm_kms *kms = &mdp5_kms->base.base;
 	struct drm_gem_object *cursor_bo, *old_bo = NULL;
 	uint32_t blendcfg, stride;
 	uint64_t cursor_addr;
@@ -758,7 +760,7 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 	if (!cursor_bo)
 		return -ENOENT;
 
-	ret = msm_gem_get_iova(cursor_bo, mdp5_kms->id, &cursor_addr);
+	ret = msm_gem_get_iova(cursor_bo, kms->id, &cursor_addr);
 	if (ret)
 		return -EINVAL;
 

drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c

@@ -163,7 +163,7 @@ static void mdp5_set_encoder_mode(struct msm_kms *kms,
 static void mdp5_kms_destroy(struct msm_kms *kms)
 {
 	struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
-	struct msm_gem_address_space *aspace = mdp5_kms->aspace;
+	struct msm_gem_address_space *aspace = kms->aspace;
 	int i;
 
 	for (i = 0; i < mdp5_kms->num_hwmixers; i++)
@@ -663,7 +663,7 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev)
 			goto fail;
 		}
 
-		mdp5_kms->aspace = aspace;
+		kms->aspace = aspace;
 
 		ret = aspace->mmu->funcs->attach(aspace->mmu, iommu_ports,
 				ARRAY_SIZE(iommu_ports));
@@ -678,9 +678,9 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev)
 		aspace = NULL;;
 	}
 
-	mdp5_kms->id = msm_register_address_space(dev, aspace);
-	if (mdp5_kms->id < 0) {
-		ret = mdp5_kms->id;
+	kms->id = msm_register_address_space(dev, aspace);
+	if (kms->id < 0) {
+		ret = kms->id;
 		dev_err(&pdev->dev, "failed to register mdp5 iommu: %d\n", ret);
 		goto fail;
 	}

drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h

@@ -55,10 +55,6 @@ struct mdp5_kms {
 	struct mdp5_state *state;
 	struct drm_modeset_lock state_lock;
 
-	/* mapper-id used to request GEM buffer mapped for scanout: */
-	int id;
-	struct msm_gem_address_space *aspace;
-
 	struct mdp5_smp *smp;
 	struct mdp5_ctl_manager *ctlm;
 

drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c

@@ -272,26 +272,28 @@ static int mdp5_plane_prepare_fb(struct drm_plane *plane,
 				 struct drm_plane_state *new_state)
 {
 	struct mdp5_kms *mdp5_kms = get_kms(plane);
+	struct msm_kms *kms = &mdp5_kms->base.base;
 	struct drm_framebuffer *fb = new_state->fb;
 
 	if (!new_state->fb)
 		return 0;
 
 	DBG("%s: prepare: FB[%u]", plane->name, fb->base.id);
-	return msm_framebuffer_prepare(fb, mdp5_kms->id);
+	return msm_framebuffer_prepare(fb, kms->id);
 }
 
 static void mdp5_plane_cleanup_fb(struct drm_plane *plane,
 				  struct drm_plane_state *old_state)
 {
 	struct mdp5_kms *mdp5_kms = get_kms(plane);
+	struct msm_kms *kms = &mdp5_kms->base.base;
 	struct drm_framebuffer *fb = old_state->fb;
 
 	if (!fb)
 		return;
 
 	DBG("%s: cleanup: FB[%u]", plane->name, fb->base.id);
-	msm_framebuffer_cleanup(fb, mdp5_kms->id);
+	msm_framebuffer_cleanup(fb, kms->id);
 }
 
 #define FRAC_16_16(mult, div)    (((mult) << 16) / (div))
@@ -498,6 +500,8 @@ static void set_scanout_locked(struct mdp5_kms *mdp5_kms,
 			       enum mdp5_pipe pipe,
 			       struct drm_framebuffer *fb)
 {
+	struct msm_kms *kms = &mdp5_kms->base.base;
+
 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC_STRIDE_A(pipe),
 			MDP5_PIPE_SRC_STRIDE_A_P0(fb->pitches[0]) |
 			MDP5_PIPE_SRC_STRIDE_A_P1(fb->pitches[1]));
@@ -507,13 +511,13 @@ static void set_scanout_locked(struct mdp5_kms *mdp5_kms,
 			MDP5_PIPE_SRC_STRIDE_B_P3(fb->pitches[3]));
 
 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC0_ADDR(pipe),
-			msm_framebuffer_iova(fb, mdp5_kms->id, 0));
+			msm_framebuffer_iova(fb, kms->id, 0));
 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC1_ADDR(pipe),
-			msm_framebuffer_iova(fb, mdp5_kms->id, 1));
+			msm_framebuffer_iova(fb, kms->id, 1));
 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC2_ADDR(pipe),
-			msm_framebuffer_iova(fb, mdp5_kms->id, 2));
+			msm_framebuffer_iova(fb, kms->id, 2));
 	mdp5_write(mdp5_kms, REG_MDP5_PIPE_SRC3_ADDR(pipe),
-			msm_framebuffer_iova(fb, mdp5_kms->id, 3));
+			msm_framebuffer_iova(fb, kms->id, 3));
 }
 
 /* Note: mdp5_plane->pipe_lock must be locked */

drivers/gpu/drm/msm/msm_fbdev.c

@@ -20,6 +20,7 @@
 
 #include "msm_drv.h"
 #include "msm_gem.h"
+#include "msm_kms.h"
 
 extern int msm_gem_mmap_obj(struct drm_gem_object *obj,
 					struct vm_area_struct *vma);
@@ -73,6 +74,7 @@ static int msm_fbdev_create(struct drm_fb_helper *helper,
 {
 	struct msm_fbdev *fbdev = to_msm_fbdev(helper);
 	struct drm_device *dev = helper->dev;
+	struct msm_drm_private *priv = dev->dev_private;
 	struct drm_framebuffer *fb = NULL;
 	struct fb_info *fbi = NULL;
 	struct drm_mode_fb_cmd2 mode_cmd = {0};
@@ -124,7 +126,7 @@ static int msm_fbdev_create(struct drm_fb_helper *helper,
 	 * in panic (ie. lock-safe, etc) we could avoid pinning the
 	 * buffer now:
 	 */
-	ret = msm_gem_get_iova_locked(fbdev->bo, 0, &paddr);
+	ret = msm_gem_get_iova_locked(fbdev->bo, priv->kms->id, &paddr);
 	if (ret) {
 		dev_err(dev->dev, "failed to get buffer obj iova: %d\n", ret);
 		goto fail_unlock;

drivers/gpu/drm/msm/msm_kms.h

@@ -72,6 +72,10 @@ struct msm_kms {
 
 	/* irq number to be passed on to drm_irq_install */
 	int irq;
+
+	/* mapper-id used to request GEM buffer mapped for scanout: */
+	int id;
+	struct msm_gem_address_space *aspace;
 };
 
 /**