Merge branch 'vmwgfx-next' of git://people.freedesktop.org/~thomash/l…

…inux into drm-next

A relative large set of various improvements for vmwgfx. Some of them
have been around for a while, some are relatively new, but functionality
should have been tested in our standalone repo.

* 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux:
  drm/vmwgfx: Bump version patchlevel and date
  drm/vmwgfx: use monotonic event timestamps
  drm/vmwgfx: Unpin the screen object backup buffer when not used
  drm/vmwgfx: Stricter count of legacy surface device resources
  drm/vmwgfx: Use kasprintf
  drm/vmwgfx: Get rid of the device-private suspended member
  drm/vmwgfx: Improve on hibernation
  drm/vmwgfx: Avoid pinning fbdev framebuffers
  drm/vmwgfx: Fix multiple command buffer context use
  drm/vmwgfx: Use the cpu blit utility for framebuffer to screen target blits
  drm/vmwgfx: Add a cpu blit utility that can be used for page-backed bos
  drm/ttm: Export the ttm_k[un]map_atomic_prot API.
  drm/ttm: Clean up kmap_atomic_prot selection code
  drm/vmwgfx: Cursor update fixes
  drm/vmwgfx: Send the correct nonblock option for atomic_commit
  drm/vmwgfx: Move the stdu vblank event to atomic function
  drm/vmwgfx: Move screen object page flip to atomic function
  drm/vmwgfx: Remove drm_crtc_arm_vblank_event from atomic flush
  drm/vmwgfx: Move surface copy cmd to atomic function
  drm/vmwgfx: Avoid iterating over display unit if crtc is available

drivers/gpu/drm/ttm/ttm_bo_util.c

@@ -255,6 +255,54 @@ static int ttm_copy_io_page(void *dst, void *src, unsigned long page)
 	return 0;
 }
 
+#ifdef CONFIG_X86
+#define __ttm_kmap_atomic_prot(__page, __prot) kmap_atomic_prot(__page, __prot)
+#define __ttm_kunmap_atomic(__addr) kunmap_atomic(__addr)
+#else
+#define __ttm_kmap_atomic_prot(__page, __prot) vmap(&__page, 1, 0,  __prot)
+#define __ttm_kunmap_atomic(__addr) vunmap(__addr)
+#endif
+
+
+/**
+ * ttm_kmap_atomic_prot - Efficient kernel map of a single page with
+ * specified page protection.
+ *
+ * @page: The page to map.
+ * @prot: The page protection.
+ *
+ * This function maps a TTM page using the kmap_atomic api if available,
+ * otherwise falls back to vmap. The user must make sure that the
+ * specified page does not have an aliased mapping with a different caching
+ * policy unless the architecture explicitly allows it. Also mapping and
+ * unmapping using this api must be correctly nested. Unmapping should
+ * occur in the reverse order of mapping.
+ */
+void *ttm_kmap_atomic_prot(struct page *page, pgprot_t prot)
+{
+	if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL))
+		return kmap_atomic(page);
+	else
+		return __ttm_kmap_atomic_prot(page, prot);
+}
+EXPORT_SYMBOL(ttm_kmap_atomic_prot);
+
+/**
+ * ttm_kunmap_atomic_prot - Unmap a page that was mapped using
+ * ttm_kmap_atomic_prot.
+ *
+ * @addr: The virtual address from the map.
+ * @prot: The page protection.
+ */
+void ttm_kunmap_atomic_prot(void *addr, pgprot_t prot)
+{
+	if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL))
+		kunmap_atomic(addr);
+	else
+		__ttm_kunmap_atomic(addr);
+}
+EXPORT_SYMBOL(ttm_kunmap_atomic_prot);
+
 static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src,
 				unsigned long page,
 				pgprot_t prot)
@@ -266,28 +314,13 @@ static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src,
 		return -ENOMEM;
 
 	src = (void *)((unsigned long)src + (page << PAGE_SHIFT));
-
-#ifdef CONFIG_X86
-	dst = kmap_atomic_prot(d, prot);
-#else
-	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
-		dst = vmap(&d, 1, 0, prot);
-	else
-		dst = kmap(d);
-#endif
+	dst = ttm_kmap_atomic_prot(d, prot);
 	if (!dst)
 		return -ENOMEM;
 
 	memcpy_fromio(dst, src, PAGE_SIZE);
 
-#ifdef CONFIG_X86
-	kunmap_atomic(dst);
-#else
-	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
-		vunmap(dst);
-	else
-		kunmap(d);
-#endif
+	ttm_kunmap_atomic_prot(dst, prot);
 
 	return 0;
 }
@@ -303,27 +336,13 @@ static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst,
 		return -ENOMEM;
 
 	dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT));
-#ifdef CONFIG_X86
-	src = kmap_atomic_prot(s, prot);
-#else
-	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
-		src = vmap(&s, 1, 0, prot);
-	else
-		src = kmap(s);
-#endif
+	src = ttm_kmap_atomic_prot(s, prot);
 	if (!src)
 		return -ENOMEM;
 
 	memcpy_toio(dst, src, PAGE_SIZE);
 
-#ifdef CONFIG_X86
-	kunmap_atomic(src);
-#else
-	if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
-		vunmap(src);
-	else
-		kunmap(s);
-#endif
+	ttm_kunmap_atomic_prot(src, prot);
 
 	return 0;
 }

drivers/gpu/drm/vmwgfx/Makefile

@@ -7,6 +7,6 @@ vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.o \
 	    vmwgfx_surface.o vmwgfx_prime.o vmwgfx_mob.o vmwgfx_shader.o \
 	    vmwgfx_cmdbuf_res.o vmwgfx_cmdbuf.o vmwgfx_stdu.o \
 	    vmwgfx_cotable.o vmwgfx_so.o vmwgfx_binding.o vmwgfx_msg.o \
-	    vmwgfx_simple_resource.o vmwgfx_va.o
+	    vmwgfx_simple_resource.o vmwgfx_va.o vmwgfx_blit.o
 
 obj-$(CONFIG_DRM_VMWGFX) := vmwgfx.o

drivers/gpu/drm/vmwgfx/device_include/svga_reg.h

@@ -372,6 +372,14 @@ SVGAGuestPtr;
  * PA, not biased by the offset.  When the command buffer is finished
  * the guest should not read the offset field as there is no guarantee
  * what it will set to.
+ *
+ * When the SVGA_CAP_HP_CMD_QUEUE cap bit is set a new command queue
+ * SVGA_CB_CONTEXT_1 is available.  Commands submitted to this queue
+ * will be executed as quickly as possible by the SVGA device
+ * potentially before already queued commands on SVGA_CB_CONTEXT_0.
+ * The SVGA device guarantees that any command buffers submitted to
+ * SVGA_CB_CONTEXT_0 will be executed after any _already_ submitted
+ * command buffers to SVGA_CB_CONTEXT_1.
  */
 
 #define SVGA_CB_MAX_SIZE (512 * 1024)  /* 512 KB */
@@ -382,7 +390,8 @@ SVGAGuestPtr;
 typedef enum {
    SVGA_CB_CONTEXT_DEVICE = 0x3f,
    SVGA_CB_CONTEXT_0      = 0x0,
-   SVGA_CB_CONTEXT_MAX    = 0x1,
+   SVGA_CB_CONTEXT_1      = 0x1, /* Supported with SVGA_CAP_HP_CMD_QUEUE */
+   SVGA_CB_CONTEXT_MAX    = 0x2,
 } SVGACBContext;
 
 
@@ -689,6 +698,7 @@ SVGASignedPoint;
 #define SVGA_CAP_CMD_BUFFERS_2      0x04000000
 #define SVGA_CAP_GBOBJECTS          0x08000000
 #define SVGA_CAP_DX                 0x10000000
+#define SVGA_CAP_HP_CMD_QUEUE       0x20000000
 
 #define SVGA_CAP_CMD_RESERVED       0x80000000