#include "vmwgfx_drv.h"
/*
- * Currently the MOB interface does not support 64-bit page frame numbers.
- * This might change in the future to be similar to the GMR2 interface
- * when virtual machines support memory beyond 16TB.
+ * If we set up the screen target otable, screen objects stop working.
*/
+#define VMW_OTABLE_SETUP_SUB ((VMWGFX_ENABLE_SCREEN_TARGET_OTABLE) ? 0 : 1)
+
+#ifdef CONFIG_64BIT
+#define VMW_PPN_SIZE 8
+#define VMW_MOBFMT_PTDEPTH_0 SVGA3D_MOBFMT_PTDEPTH64_0
+#define VMW_MOBFMT_PTDEPTH_1 SVGA3D_MOBFMT_PTDEPTH64_1
+#define VMW_MOBFMT_PTDEPTH_2 SVGA3D_MOBFMT_PTDEPTH64_2
+#else
#define VMW_PPN_SIZE 4
+#define VMW_MOBFMT_PTDEPTH_0 SVGA3D_MOBFMT_PTDEPTH_0
+#define VMW_MOBFMT_PTDEPTH_1 SVGA3D_MOBFMT_PTDEPTH_1
+#define VMW_MOBFMT_PTDEPTH_2 SVGA3D_MOBFMT_PTDEPTH_2
+#endif
/*
* struct vmw_mob - Structure containing page table and metadata for a
*
* @num_pages Number of pages that make up the page table.
* @pt_level The indirection level of the page table. 0-2.
- * @pt_root_page Pointer to the level 0 page of the page table.
+ * @pt_root_page DMA address of the level 0 page of the page table.
*/
struct vmw_mob {
struct ttm_buffer_object *pt_bo;
unsigned long num_pages;
unsigned pt_level;
- struct page *pt_root_page;
+ dma_addr_t pt_root_page;
uint32_t id;
};
static int vmw_mob_pt_populate(struct vmw_private *dev_priv,
struct vmw_mob *mob);
static void vmw_mob_pt_setup(struct vmw_mob *mob,
- struct page **data_pages,
+ struct vmw_piter data_iter,
unsigned long num_data_pages);
/*
{
struct {
SVGA3dCmdHeader header;
- SVGA3dCmdSetOTableBase body;
+ SVGA3dCmdSetOTableBase64 body;
} *cmd;
- struct page **pages = dev_priv->otable_bo->ttm->pages +
- (offset >> PAGE_SHIFT);
struct vmw_mob *mob;
+ const struct vmw_sg_table *vsgt;
+ struct vmw_piter iter;
int ret;
BUG_ON(otable->page_table != NULL);
+ vsgt = vmw_bo_sg_table(dev_priv->otable_bo);
+ vmw_piter_start(&iter, vsgt, offset >> PAGE_SHIFT);
+ WARN_ON(!vmw_piter_next(&iter));
+
mob = vmw_mob_create(otable->size >> PAGE_SHIFT);
if (unlikely(mob == NULL)) {
DRM_ERROR("Failed creating OTable page table.\n");
}
if (otable->size <= PAGE_SIZE) {
- mob->pt_level = 0;
- mob->pt_root_page = pages[0];
+ mob->pt_level = VMW_MOBFMT_PTDEPTH_0;
+ mob->pt_root_page = vmw_piter_dma_addr(&iter);
+ } else if (vsgt->num_regions == 1) {
+ mob->pt_level = SVGA3D_MOBFMT_RANGE;
+ mob->pt_root_page = vmw_piter_dma_addr(&iter);
} else {
ret = vmw_mob_pt_populate(dev_priv, mob);
if (unlikely(ret != 0))
goto out_no_populate;
- vmw_mob_pt_setup(mob, pages,
- otable->size >> PAGE_SHIFT);
+ vmw_mob_pt_setup(mob, iter, otable->size >> PAGE_SHIFT);
+ mob->pt_level += VMW_MOBFMT_PTDEPTH_1 - SVGA3D_MOBFMT_PTDEPTH_1;
}
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
}
memset(cmd, 0, sizeof(*cmd));
- cmd->header.id = SVGA_3D_CMD_SET_OTABLE_BASE;
+ cmd->header.id = SVGA_3D_CMD_SET_OTABLE_BASE64;
cmd->header.size = sizeof(cmd->body);
cmd->body.type = type;
- cmd->body.baseAddress = page_to_pfn(mob->pt_root_page);
+ cmd->body.baseAddress = cpu_to_le64(mob->pt_root_page >> PAGE_SHIFT);
cmd->body.sizeInBytes = otable->size;
cmd->body.validSizeInBytes = 0;
cmd->body.ptDepth = mob->pt_level;
+ /*
+ * The device doesn't support this, But the otable size is
+ * determined at compile-time, so this BUG shouldn't trigger
+ * randomly.
+ */
+ BUG_ON(mob->pt_level == VMW_MOBFMT_PTDEPTH_2);
+
vmw_fifo_commit(dev_priv, sizeof(*cmd));
otable->page_table = mob;
SVGA3dCmdHeader header;
SVGA3dCmdSetOTableBase body;
} *cmd;
- struct ttm_buffer_object *bo = otable->page_table->pt_bo;
+ struct ttm_buffer_object *bo;
if (otable->page_table == NULL)
return;
+ bo = otable->page_table->pt_bo;
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
if (unlikely(cmd == NULL))
DRM_ERROR("Failed reserving FIFO space for OTable setup.\n");
if (bo) {
int ret;
- ret = ttm_bo_reserve(bo, false, true, false, false);
+ ret = ttm_bo_reserve(bo, false, true, false, NULL);
BUG_ON(ret != 0);
vmw_fence_single_bo(bo, NULL);
SVGAOTableType i;
int ret;
- otables = kzalloc(SVGA_OTABLE_COUNT * sizeof(*otables),
+ otables = kzalloc(SVGA_OTABLE_DX9_MAX * sizeof(*otables),
GFP_KERNEL);
if (unlikely(otables == NULL)) {
DRM_ERROR("Failed to allocate space for otable "
VMWGFX_NUM_GB_CONTEXT * SVGA3D_OTABLE_CONTEXT_ENTRY_SIZE;
otables[SVGA_OTABLE_SHADER].size =
VMWGFX_NUM_GB_SHADER * SVGA3D_OTABLE_SHADER_ENTRY_SIZE;
+ otables[SVGA_OTABLE_SCREEN_TARGET].size =
+ VMWGFX_NUM_GB_SCREEN_TARGET *
+ SVGA3D_OTABLE_SCREEN_TARGET_ENTRY_SIZE;
bo_size = 0;
- for (i = 0; i < SVGA_OTABLE_COUNT; ++i) {
+ for (i = 0; i < SVGA_OTABLE_DX9_MAX; ++i) {
otables[i].size =
(otables[i].size + PAGE_SIZE - 1) & PAGE_MASK;
bo_size += otables[i].size;
if (unlikely(ret != 0))
goto out_no_bo;
- ret = ttm_bo_reserve(dev_priv->otable_bo, false, true, false, false);
+ ret = ttm_bo_reserve(dev_priv->otable_bo, false, true, false, NULL);
BUG_ON(ret != 0);
ret = vmw_bo_driver.ttm_tt_populate(dev_priv->otable_bo->ttm);
- ttm_bo_unreserve(dev_priv->otable_bo);
if (unlikely(ret != 0))
- goto out_no_setup;
+ goto out_unreserve;
+ ret = vmw_bo_map_dma(dev_priv->otable_bo);
+ if (unlikely(ret != 0))
+ goto out_unreserve;
+
+ ttm_bo_unreserve(dev_priv->otable_bo);
offset = 0;
- for (i = 0; i < SVGA_OTABLE_COUNT; ++i) {
+ for (i = 0; i < SVGA_OTABLE_DX9_MAX - VMW_OTABLE_SETUP_SUB; ++i) {
ret = vmw_setup_otable_base(dev_priv, i, offset,
&otables[i]);
if (unlikely(ret != 0))
dev_priv->otables = otables;
return 0;
+out_unreserve:
+ ttm_bo_unreserve(dev_priv->otable_bo);
out_no_setup:
- for (i = 0; i < SVGA_OTABLE_COUNT; ++i)
+ for (i = 0; i < SVGA_OTABLE_DX9_MAX - VMW_OTABLE_SETUP_SUB; ++i)
vmw_takedown_otable_base(dev_priv, i, &otables[i]);
ttm_bo_unref(&dev_priv->otable_bo);
struct ttm_buffer_object *bo = dev_priv->otable_bo;
int ret;
- for (i = 0; i < SVGA_OTABLE_COUNT; ++i)
+ for (i = 0; i < SVGA_OTABLE_DX9_MAX - VMW_OTABLE_SETUP_SUB; ++i)
vmw_takedown_otable_base(dev_priv, i,
&dev_priv->otables[i]);
- ret = ttm_bo_reserve(bo, false, true, false, false);
+ ret = ttm_bo_reserve(bo, false, true, false, NULL);
BUG_ON(ret != 0);
vmw_fence_single_bo(bo, NULL);
if (unlikely(ret != 0))
return ret;
- ret = ttm_bo_reserve(mob->pt_bo, false, true, false, false);
+ ret = ttm_bo_reserve(mob->pt_bo, false, true, false, NULL);
BUG_ON(ret != 0);
ret = vmw_bo_driver.ttm_tt_populate(mob->pt_bo->ttm);
- ttm_bo_unreserve(mob->pt_bo);
if (unlikely(ret != 0))
- ttm_bo_unref(&mob->pt_bo);
+ goto out_unreserve;
+ ret = vmw_bo_map_dma(mob->pt_bo);
+ if (unlikely(ret != 0))
+ goto out_unreserve;
+
+ ttm_bo_unreserve(mob->pt_bo);
+
+ return 0;
+
+out_unreserve:
+ ttm_bo_unreserve(mob->pt_bo);
+ ttm_bo_unref(&mob->pt_bo);
return ret;
}
+/**
+ * vmw_mob_assign_ppn - Assign a value to a page table entry
+ *
+ * @addr: Pointer to pointer to page table entry.
+ * @val: The page table entry
+ *
+ * Assigns a value to a page table entry pointed to by *@addr and increments
+ * *@addr according to the page table entry size.
+ */
+#if (VMW_PPN_SIZE == 8)
+static void vmw_mob_assign_ppn(__le32 **addr, dma_addr_t val)
+{
+ *((__le64 *) *addr) = cpu_to_le64(val >> PAGE_SHIFT);
+ *addr += 2;
+}
+#else
+static void vmw_mob_assign_ppn(__le32 **addr, dma_addr_t val)
+{
+ *(*addr)++ = cpu_to_le32(val >> PAGE_SHIFT);
+}
+#endif
/*
* vmw_mob_build_pt - Build a pagetable
*
- * @data_pages: Array of page pointers to the underlying buffer
+ * @data_addr: Array of DMA addresses to the underlying buffer
* object's data pages.
* @num_data_pages: Number of buffer object data pages.
* @pt_pages: Array of page pointers to the page table pages.
* Returns the number of page table pages actually used.
* Uses atomic kmaps of highmem pages to avoid TLB thrashing.
*/
-static unsigned long vmw_mob_build_pt(struct page **data_pages,
+static unsigned long vmw_mob_build_pt(struct vmw_piter *data_iter,
unsigned long num_data_pages,
- struct page **pt_pages)
+ struct vmw_piter *pt_iter)
{
unsigned long pt_size = num_data_pages * VMW_PPN_SIZE;
unsigned long num_pt_pages = DIV_ROUND_UP(pt_size, PAGE_SIZE);
- unsigned long pt_page, data_page;
- uint32_t *addr, *save_addr;
+ unsigned long pt_page;
+ __le32 *addr, *save_addr;
unsigned long i;
+ struct page *page;
- data_page = 0;
for (pt_page = 0; pt_page < num_pt_pages; ++pt_page) {
- save_addr = addr = kmap_atomic(pt_pages[pt_page]);
+ page = vmw_piter_page(pt_iter);
+
+ save_addr = addr = kmap_atomic(page);
for (i = 0; i < PAGE_SIZE / VMW_PPN_SIZE; ++i) {
- *addr++ = page_to_pfn(data_pages[data_page++]);
- if (unlikely(data_page >= num_data_pages))
+ vmw_mob_assign_ppn(&addr,
+ vmw_piter_dma_addr(data_iter));
+ if (unlikely(--num_data_pages == 0))
break;
+ WARN_ON(!vmw_piter_next(data_iter));
}
kunmap_atomic(save_addr);
+ vmw_piter_next(pt_iter);
}
return num_pt_pages;
* vmw_mob_build_pt - Set up a multilevel mob pagetable
*
* @mob: Pointer to a mob whose page table needs setting up.
- * @data_pages Array of page pointers to the buffer object's data
+ * @data_addr Array of DMA addresses to the buffer object's data
* pages.
* @num_data_pages: Number of buffer object data pages.
*
* Uses tail recursion to set up a multilevel mob page table.
*/
static void vmw_mob_pt_setup(struct vmw_mob *mob,
- struct page **data_pages,
+ struct vmw_piter data_iter,
unsigned long num_data_pages)
{
- struct page **pt_pages;
unsigned long num_pt_pages = 0;
struct ttm_buffer_object *bo = mob->pt_bo;
+ struct vmw_piter save_pt_iter;
+ struct vmw_piter pt_iter;
+ const struct vmw_sg_table *vsgt;
int ret;
- ret = ttm_bo_reserve(bo, false, true, false, 0);
+ ret = ttm_bo_reserve(bo, false, true, false, NULL);
BUG_ON(ret != 0);
- pt_pages = bo->ttm->pages;
+ vsgt = vmw_bo_sg_table(bo);
+ vmw_piter_start(&pt_iter, vsgt, 0);
+ BUG_ON(!vmw_piter_next(&pt_iter));
mob->pt_level = 0;
while (likely(num_data_pages > 1)) {
++mob->pt_level;
BUG_ON(mob->pt_level > 2);
-
- pt_pages += num_pt_pages;
- num_pt_pages = vmw_mob_build_pt(data_pages, num_data_pages,
- pt_pages);
- data_pages = pt_pages;
+ save_pt_iter = pt_iter;
+ num_pt_pages = vmw_mob_build_pt(&data_iter, num_data_pages,
+ &pt_iter);
+ data_iter = save_pt_iter;
num_data_pages = num_pt_pages;
}
- mob->pt_root_page = *pt_pages;
+ mob->pt_root_page = vmw_piter_dma_addr(&save_pt_iter);
ttm_bo_unreserve(bo);
}
struct ttm_buffer_object *bo = mob->pt_bo;
if (bo) {
- ret = ttm_bo_reserve(bo, false, true, false, 0);
+ ret = ttm_bo_reserve(bo, false, true, false, NULL);
/*
* Noone else should be using this buffer.
*/
*
* @dev_priv: Pointer to a device private.
* @mob: Pointer to the mob we're making visible.
- * @data_pages: Array of pointers to the data pages of the underlying
+ * @data_addr: Array of DMA addresses to the data pages of the underlying
* buffer object.
* @num_data_pages: Number of data pages of the underlying buffer
* object.
*/
int vmw_mob_bind(struct vmw_private *dev_priv,
struct vmw_mob *mob,
- struct page **data_pages,
+ const struct vmw_sg_table *vsgt,
unsigned long num_data_pages,
int32_t mob_id)
{
int ret;
bool pt_set_up = false;
+ struct vmw_piter data_iter;
struct {
SVGA3dCmdHeader header;
- SVGA3dCmdDefineGBMob body;
+ SVGA3dCmdDefineGBMob64 body;
} *cmd;
mob->id = mob_id;
+ vmw_piter_start(&data_iter, vsgt, 0);
+ if (unlikely(!vmw_piter_next(&data_iter)))
+ return 0;
+
if (likely(num_data_pages == 1)) {
- mob->pt_level = 0;
- mob->pt_root_page = *data_pages;
+ mob->pt_level = VMW_MOBFMT_PTDEPTH_0;
+ mob->pt_root_page = vmw_piter_dma_addr(&data_iter);
+ } else if (vsgt->num_regions == 1) {
+ mob->pt_level = SVGA3D_MOBFMT_RANGE;
+ mob->pt_root_page = vmw_piter_dma_addr(&data_iter);
} else if (unlikely(mob->pt_bo == NULL)) {
ret = vmw_mob_pt_populate(dev_priv, mob);
if (unlikely(ret != 0))
return ret;
- vmw_mob_pt_setup(mob, data_pages, num_data_pages);
+ vmw_mob_pt_setup(mob, data_iter, num_data_pages);
pt_set_up = true;
+ mob->pt_level += VMW_MOBFMT_PTDEPTH_1 - SVGA3D_MOBFMT_PTDEPTH_1;
}
(void) vmw_3d_resource_inc(dev_priv, false);
goto out_no_cmd_space;
}
- cmd->header.id = SVGA_3D_CMD_DEFINE_GB_MOB;
+ cmd->header.id = SVGA_3D_CMD_DEFINE_GB_MOB64;
cmd->header.size = sizeof(cmd->body);
cmd->body.mobid = mob_id;
cmd->body.ptDepth = mob->pt_level;
- cmd->body.base = page_to_pfn(mob->pt_root_page);
+ cmd->body.base = cpu_to_le64(mob->pt_root_page >> PAGE_SHIFT);
cmd->body.sizeInBytes = num_data_pages * PAGE_SIZE;
vmw_fifo_commit(dev_priv, sizeof(*cmd));
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / blobdiff