gpu: nvgpu: Move Linux nvgpu_mem fields

Hide the Linux specific nvgpu_mem fields so that in subsequent patches
core code can instead of using struct sg_table it can use mem_desc.
Routines for accessing system specific fields will be added as needed.

This is the first step in a fairly major overhaul of the GMMU mapping
routines. There are numerous issues with the current design (or lack
there of): massively coupled code, system dependencies, disorganization,
etc.

JIRA NVGPU-12
JIRA NVGPU-30

Change-Id: I2e7d3ae3a07468cfc17c1c642d28ed1b0952474d
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1464076
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/fb_gk20a.c b/drivers/gpu/nvgpu/gk20a/fb_gk20a.c
index 214014ce..4a76bd6b 100644
--- a/drivers/gpu/nvgpu/gk20a/fb_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/fb_gk20a.c
@@ -44,9 +44,10 @@ void fb_gk20a_reset(struct gk20a *g)
 
 void gk20a_fb_init_hw(struct gk20a *g)
 {
-        gk20a_writel(g, fb_niso_flush_sysmem_addr_r(),
-                     g->ops.mm.get_iova_addr(g, g->mm.sysmem_flush.sgt->sgl, 0)
-                     >> 8);
+        u32 addr = g->ops.mm.get_iova_addr(g,
+                        g->mm.sysmem_flush.priv.sgt->sgl, 0) >> 8;
+
+        gk20a_writel(g, fb_niso_flush_sysmem_addr_r(), addr);
 }
 
 static void gk20a_fb_set_mmu_page_size(struct gk20a *g)