Merge tag 'drm-misc-next-2026-01-15' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for 6.20:

Core Changes:

- atomic: Introduce Gamma/Degamma LUT size check
- gem: Fix a leak in drm_gem_get_unmapped_area
- gpuvm: API sanitation for Rust bindings
- panic: Few corner-cases fixes

Driver Changes:

- Replace system workqueue with percpu equivalent

- amdxdna: Update message buffer allocation requirements, Update
  firmware version check
- imagination: Add AM62P support
- ivpu: Implement warm boot flow
- rockchip: Get rid of atomic_check fixups, Add Rockchip RK3506 Support
- rocket: Cleanups

- bridge:
  - dw-hdmi-qp: Add support for HPD-less setups
- panel:
  - mantix: Various power management related improvements
  - new panels: Innolux G150XGE-L05,

- dma-buf:
  - cma: Call clear_page instead of memset

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <mripard@redhat.com>
Link: https://patch.msgid.link/20260115-lilac-dragon-of-opposition-ac0a30@houat

Author: airlied

Documentation/devicetree/bindings/display/panel/panel-simple.yaml

@@ -178,6 +178,8 @@ properties:
       - innolux,g121x1-l03
         # Innolux Corporation 12.1" G121XCE-L01 XGA (1024x768) TFT LCD panel
       - innolux,g121xce-l01
+        # InnoLux 15.0" G150XGE-L05 XGA (1024x768) TFT LCD panel
+      - innolux,g150xge-l05
         # InnoLux 15.6" FHD (1920x1080) TFT LCD panel
       - innolux,g156hce-l01
         # InnoLux 13.3" FHD (1920x1080) TFT LCD panel
@@ -349,7 +351,9 @@ if:
     properties:
       compatible:
         contains:
-          const: innolux,g101ice-l01
+          enum:
+            - innolux,g101ice-l01
+            - yes-optoelectronics,ytc700tlag-05-201c
 then:
   properties:
     data-mapping: false

Documentation/devicetree/bindings/display/rockchip/rockchip,dw-mipi-dsi.yaml

@@ -19,6 +19,7 @@ properties:
           - rockchip,rk3288-mipi-dsi
           - rockchip,rk3368-mipi-dsi
           - rockchip,rk3399-mipi-dsi
+          - rockchip,rk3506-mipi-dsi
           - rockchip,rk3568-mipi-dsi
           - rockchip,rv1126-mipi-dsi
       - const: snps,dw-mipi-dsi
@@ -75,6 +76,7 @@ allOf:
               - rockchip,px30-mipi-dsi
               - rockchip,rk3128-mipi-dsi
               - rockchip,rk3368-mipi-dsi
+              - rockchip,rk3506-mipi-dsi
               - rockchip,rk3568-mipi-dsi
               - rockchip,rv1126-mipi-dsi
 

Documentation/devicetree/bindings/display/rockchip/rockchip,rk3588-dw-hdmi-qp.yaml

@@ -69,6 +69,12 @@ properties:
       - const: main
       - const: hpd
 
+  no-hpd:
+    type: boolean
+    description:
+      The HPD pin is not present or used for another purpose, and the EDID
+      must be polled instead to determine if a device is attached.
+
   phys:
     maxItems: 1
     description: The HDMI/eDP PHY

Documentation/devicetree/bindings/display/rockchip/rockchip-vop.yaml

@@ -31,6 +31,7 @@ properties:
       - rockchip,rk3368-vop
       - rockchip,rk3399-vop-big
       - rockchip,rk3399-vop-lit
+      - rockchip,rk3506-vop
       - rockchip,rv1126-vop
 
   reg:

Documentation/devicetree/bindings/gpu/arm,mali-valhall-csf.yaml

@@ -51,6 +51,14 @@ properties:
           - stacks
       - const: stacks
 
+  nvmem-cells:
+    items:
+      - description: bitmask of functional shader cores
+
+  nvmem-cell-names:
+    items:
+      - const: shader-present
+
   mali-supply: true
 
   operating-points-v2: true
@@ -108,6 +116,8 @@ allOf:
       properties:
         clocks:
           minItems: 3
+        nvmem-cells: false
+        nvmem-cell-names: false
         power-domains:
           maxItems: 1
         power-domain-names: false
@@ -133,6 +143,8 @@ allOf:
             - const: core
             - const: stacks
       required:
+        - nvmem-cells
+        - nvmem-cell-names
         - power-domains
 
 examples:
@@ -179,6 +191,8 @@ examples:
                      <GIC_SPI 605 IRQ_TYPE_LEVEL_HIGH 0>,
                      <GIC_SPI 604 IRQ_TYPE_LEVEL_HIGH 0>;
         interrupt-names = "job", "mmu", "gpu";
+        nvmem-cells = <&shader_present>;
+        nvmem-cell-names = "shader-present";
         power-domains = <&gpufreq>;
     };
 

Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml

@@ -40,6 +40,7 @@ properties:
           - const: img,img-rogue
       - items:
           - enum:
+              - ti,am62p-gpu
               - ti,j721s2-gpu
           - const: img,img-bxs-4-64
           - const: img,img-rogue
@@ -100,6 +101,7 @@ allOf:
           contains:
             enum:
               - ti,am62-gpu
+              - ti,am62p-gpu
               - ti,j721s2-gpu
     then:
       properties:

MAINTAINERS

@@ -8780,6 +8780,17 @@ T:	git https://gitlab.freedesktop.org/drm/misc/kernel.git
 F:	drivers/gpu/drm/ttm/
 F:	include/drm/ttm/
 
+DRM BUDDY ALLOCATOR
+M:	Matthew Auld <matthew.auld@intel.com>
+M:	Arun Pravin <arunpravin.paneerselvam@amd.com>
+R:	Christian Koenig <christian.koenig@amd.com>
+L:	dri-devel@lists.freedesktop.org
+S:	Maintained
+T:	git https://gitlab.freedesktop.org/drm/misc/kernel.git
+F:	drivers/gpu/drm/drm_buddy.c
+F:	drivers/gpu/drm/tests/drm_buddy_test.c
+F:	include/drm/drm_buddy.h
+
 DRM AUTOMATED TESTING
 M:	Helen Koike <helen.fornazier@gmail.com>
 M:	Vignesh Raman <vignesh.raman@collabora.com>

drivers/accel/amdxdna/aie2_error.c

@@ -338,8 +338,7 @@ void aie2_error_async_events_free(struct amdxdna_dev_hdl *ndev)
 	destroy_workqueue(events->wq);
 	mutex_lock(&xdna->dev_lock);
 
-	dma_free_noncoherent(xdna->ddev.dev, events->size, events->buf,
-			     events->addr, DMA_FROM_DEVICE);
+	aie2_free_msg_buffer(ndev, events->size, events->buf, events->addr);
 	kfree(events);
 }
 
@@ -355,8 +354,8 @@ int aie2_error_async_events_alloc(struct amdxdna_dev_hdl *ndev)
 	if (!events)
 		return -ENOMEM;
 
-	events->buf = dma_alloc_noncoherent(xdna->ddev.dev, total_size, &events->addr,
-					    DMA_FROM_DEVICE, GFP_KERNEL);
+	events->buf = aie2_alloc_msg_buffer(ndev, &total_size, &events->addr);
+
 	if (!events->buf) {
 		ret = -ENOMEM;
 		goto free_events;
@@ -396,8 +395,7 @@ int aie2_error_async_events_alloc(struct amdxdna_dev_hdl *ndev)
 free_wq:
 	destroy_workqueue(events->wq);
 free_buf:
-	dma_free_noncoherent(xdna->ddev.dev, events->size, events->buf,
-			     events->addr, DMA_FROM_DEVICE);
+	aie2_free_msg_buffer(ndev, events->size, events->buf, events->addr);
 free_events:
 	kfree(events);
 	return ret;

drivers/accel/amdxdna/aie2_message.c

@@ -55,6 +55,22 @@ static int aie2_send_mgmt_msg_wait(struct amdxdna_dev_hdl *ndev,
 	return ret;
 }
 
+void *aie2_alloc_msg_buffer(struct amdxdna_dev_hdl *ndev, u32 *size,
+			    dma_addr_t *dma_addr)
+{
+	struct amdxdna_dev *xdna = ndev->xdna;
+	int order;
+
+	*size = max(*size, SZ_8K);
+	order = get_order(*size);
+	if (order > MAX_PAGE_ORDER)
+		return NULL;
+	*size = PAGE_SIZE << order;
+
+	return dma_alloc_noncoherent(xdna->ddev.dev, *size, dma_addr,
+				     DMA_FROM_DEVICE, GFP_KERNEL);
+}
+
 int aie2_suspend_fw(struct amdxdna_dev_hdl *ndev)
 {
 	DECLARE_AIE2_MSG(suspend, MSG_OP_SUSPEND);
@@ -346,14 +362,13 @@ int aie2_query_status(struct amdxdna_dev_hdl *ndev, char __user *buf,
 {
 	DECLARE_AIE2_MSG(aie_column_info, MSG_OP_QUERY_COL_STATUS);
 	struct amdxdna_dev *xdna = ndev->xdna;
+	u32 buf_sz = size, aie_bitmap = 0;
 	struct amdxdna_client *client;
 	dma_addr_t dma_addr;
-	u32 aie_bitmap = 0;
 	u8 *buff_addr;
 	int ret;
 
-	buff_addr = dma_alloc_noncoherent(xdna->ddev.dev, size, &dma_addr,
-					  DMA_FROM_DEVICE, GFP_KERNEL);
+	buff_addr = aie2_alloc_msg_buffer(ndev, &buf_sz, &dma_addr);
 	if (!buff_addr)
 		return -ENOMEM;
 
@@ -363,7 +378,7 @@ int aie2_query_status(struct amdxdna_dev_hdl *ndev, char __user *buf,
 
 	*cols_filled = 0;
 	req.dump_buff_addr = dma_addr;
-	req.dump_buff_size = size;
+	req.dump_buff_size = buf_sz;
 	req.num_cols = hweight32(aie_bitmap);
 	req.aie_bitmap = aie_bitmap;
 
@@ -391,7 +406,7 @@ int aie2_query_status(struct amdxdna_dev_hdl *ndev, char __user *buf,
 	*cols_filled = aie_bitmap;
 
 fail:
-	dma_free_noncoherent(xdna->ddev.dev, size, buff_addr, dma_addr, DMA_FROM_DEVICE);
+	aie2_free_msg_buffer(ndev, buf_sz, buff_addr, dma_addr);
 	return ret;
 }
 
@@ -402,19 +417,19 @@ int aie2_query_telemetry(struct amdxdna_dev_hdl *ndev,
 	DECLARE_AIE2_MSG(get_telemetry, MSG_OP_GET_TELEMETRY);
 	struct amdxdna_dev *xdna = ndev->xdna;
 	dma_addr_t dma_addr;
+	u32 buf_sz = size;
 	u8 *addr;
 	int ret;
 
 	if (header->type >= MAX_TELEMETRY_TYPE)
 		return -EINVAL;
 
-	addr = dma_alloc_noncoherent(xdna->ddev.dev, size, &dma_addr,
-				     DMA_FROM_DEVICE, GFP_KERNEL);
+	addr = aie2_alloc_msg_buffer(ndev, &buf_sz, &dma_addr);
 	if (!addr)
 		return -ENOMEM;
 
 	req.buf_addr = dma_addr;
-	req.buf_size = size;
+	req.buf_size = buf_sz;
 	req.type = header->type;
 
 	drm_clflush_virt_range(addr, size); /* device can access */
@@ -440,7 +455,7 @@ int aie2_query_telemetry(struct amdxdna_dev_hdl *ndev,
 	header->minor = resp.minor;
 
 free_buf:
-	dma_free_noncoherent(xdna->ddev.dev, size, addr, dma_addr, DMA_FROM_DEVICE);
+	aie2_free_msg_buffer(ndev, buf_sz, addr, dma_addr);
 	return ret;
 }
 

drivers/accel/amdxdna/aie2_pci.c

@@ -57,41 +57,23 @@ struct mgmt_mbox_chann_info {
 static int aie2_check_protocol(struct amdxdna_dev_hdl *ndev, u32 fw_major, u32 fw_minor)
 {
 	const struct aie2_fw_feature_tbl *feature;
-	struct amdxdna_dev *xdna = ndev->xdna;
-
-	/*
-	 * The driver supported mailbox behavior is defined by
-	 * ndev->priv->protocol_major and protocol_minor.
-	 *
-	 * When protocol_major and fw_major are different, it means driver
-	 * and firmware are incompatible.
-	 */
-	if (ndev->priv->protocol_major != fw_major) {
-		XDNA_ERR(xdna, "Incompatible firmware protocol major %d minor %d",
-			 fw_major, fw_minor);
-		return -EINVAL;
-	}
+	bool found = false;
 
-	/*
-	 * When protocol_minor is greater then fw_minor, that means driver
-	 * relies on operation the installed firmware does not support.
-	 */
-	if (ndev->priv->protocol_minor > fw_minor) {
-		XDNA_ERR(xdna, "Firmware minor version smaller than supported");
-		return -EINVAL;
-	}
-
-	for (feature = ndev->priv->fw_feature_tbl; feature && feature->min_minor;
-	     feature++) {
+	for (feature = ndev->priv->fw_feature_tbl; feature->major; feature++) {
+		if (feature->major != fw_major)
+			continue;
 		if (fw_minor < feature->min_minor)
 			continue;
 		if (feature->max_minor > 0 && fw_minor > feature->max_minor)
 			continue;
 
-		set_bit(feature->feature, &ndev->feature_mask);
+		ndev->feature_mask |= feature->features;
+
+		/* firmware version matches one of the driver support entry */
+		found = true;
 	}
 
-	return 0;
+	return found ? 0 : -EOPNOTSUPP;
 }
 
 static void aie2_dump_chann_info_debug(struct amdxdna_dev_hdl *ndev)