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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>
This commit is contained in:
Charmaine Lee 2014-02-12 12:07:38 +01:00 committed by Thomas Hellstrom
parent 8e67bbbc51
commit 857aea1c57
5 changed files with 16 additions and 1 deletions
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9
drivers/gpu/drm/vmwgfx/svga_reg.h
View File

@ -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 */

3
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
View File

@ -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;

1
drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
View File

@ -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;

3
drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
View File

@ -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);

1
include/uapi/drm/vmwgfx_drm.h
View File

@ -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