drm/vmwgfx: Get maximum mob size from register SVGA_REG_MOB_MAX_SIZE

This patch queries the register SVGA_REG_MOB_MAX_SIZE for the
maximum size of a single mob.

Signed-off-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>

diff --git a/drivers/gpu/drm/vmwgfx/svga_reg.h b/drivers/gpu/drm/vmwgfx/svga_reg.h
index 71defa4d2d7528a247b8e985a7b14cd1197e2a58..11323dd5196f495e5f2dd24b388c1720f3b6c1ce 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/svga_reg.h
+++ b/drivers/gpu/drm/vmwgfx/svga_reg.h
@@ -169,10 +169,17 @@ enum {
    SVGA_REG_TRACES = 45,            /* Enable trace-based updates even when FIFO is on */
    SVGA_REG_GMRS_MAX_PAGES = 46,    /* Maximum number of 4KB pages for all GMRs */
    SVGA_REG_MEMORY_SIZE = 47,       /* Total dedicated device memory excluding FIFO */
+   SVGA_REG_COMMAND_LOW = 48,       /* Lower 32 bits and submits commands */
+   SVGA_REG_COMMAND_HIGH = 49,      /* Upper 32 bits of command buffer PA */
    SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM = 50,   /* Max primary memory */
    SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB = 51, /* Suggested limit on mob mem */
    SVGA_REG_DEV_CAP = 52,           /* Write dev cap index, read value */
-   SVGA_REG_TOP = 53,               /* Must be 1 more than the last register */
+   SVGA_REG_CMD_PREPEND_LOW = 53,
+   SVGA_REG_CMD_PREPEND_HIGH = 54,
+   SVGA_REG_SCREENTARGET_MAX_WIDTH = 55,
+   SVGA_REG_SCREENTARGET_MAX_HEIGHT = 56,
+   SVGA_REG_MOB_MAX_SIZE = 57,
+   SVGA_REG_TOP = 58,               /* Must be 1 more than the last register */
 
    SVGA_PALETTE_BASE = 1024,        /* Base of SVGA color map */
    /* Next 768 (== 256*3) registers exist for colormap */

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 3bdc0adc656d002a22e1b95b28c4ba6f3a7d7747..0083cbf99edfd33bdfac9ad819ff4b12b1e7b5d8 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -667,6 +667,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
                dev_priv->memory_size = 512*1024*1024;
        }
        dev_priv->max_mob_pages = 0;
+       dev_priv->max_mob_size = 0;
        if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) {
                uint64_t mem_size =
                        vmw_read(dev_priv,
@@ -676,6 +677,8 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
                dev_priv->prim_bb_mem =
                        vmw_read(dev_priv,
                                 SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM);
+               dev_priv->max_mob_size =
+                       vmw_read(dev_priv, SVGA_REG_MOB_MAX_SIZE);
        } else
                dev_priv->prim_bb_mem = dev_priv->vram_size;
 

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index ecaa302a61546277cf52f787e385b9b233ca6a3c..9e4be1725985906f65ed22be6bc90968e9fe8523 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -386,6 +386,7 @@ struct vmw_private {
        uint32_t max_gmr_ids;
        uint32_t max_gmr_pages;
        uint32_t max_mob_pages;
+       uint32_t max_mob_size;
        uint32_t memory_size;
        bool has_gmr;
        bool has_mob;

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
index f9881f9e62bd401dbb8b25ad63414c0acdc51efb..47b70949bf3af6683bb74552c0b91fa7b06d7a82 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
@@ -102,6 +102,9 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data,
                vmw_fp->gb_aware = true;
                param->value = dev_priv->max_mob_pages * PAGE_SIZE;
                break;
+       case DRM_VMW_PARAM_MAX_MOB_SIZE:
+               param->value = dev_priv->max_mob_size;
+               break;
        default:
                DRM_ERROR("Illegal vmwgfx get param request: %d\n",
                          param->param);

diff --git a/include/uapi/drm/vmwgfx_drm.h b/include/uapi/drm/vmwgfx_drm.h
index 9971c560ed9aa42dc841e76b9586f05e25225d96..87792a5fee3bad7d143de81555a56ede7e532f1a 100644 (file)
--- a/include/uapi/drm/vmwgfx_drm.h
+++ b/include/uapi/drm/vmwgfx_drm.h
@@ -87,6 +87,7 @@
 #define DRM_VMW_PARAM_MAX_SURF_MEMORY  7
 #define DRM_VMW_PARAM_3D_CAPS_SIZE     8
 #define DRM_VMW_PARAM_MAX_MOB_MEMORY   9
+#define DRM_VMW_PARAM_MAX_MOB_SIZE     10
 
 /**
  * struct drm_vmw_getparam_arg