drivers/gpu/drm/i915/gem/i915_gem_ttm.c:898 i915_gem_ttm_system_setup() warn: should 'totalram_pages() << 12' be a 64 bit type?

drivers/gpu/drm/i915/gem/i915_gem_ttm.c:898 i915_gem_ttm_system_setup() warn: should 'totalram_pages() << 12' be a 64 bit type?

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
BCC: lkp(a)intel.com
CC: linux-kernel(a)vger.kernel.org
TO: "Thomas Hellström" <thomas.hellstrom@linux.intel.com>
CC: Matthew Auld <matthew.auld@intel.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ef8e4d3c2ab1f47f63b6c7e578266b7e5cc9cd1b
commit: 32b7cf51a441270c62ebaa146c9431e6f155d901 drm/i915/ttm: Use TTM for system memory
date:   10 months ago
:::::: branch date: 10 hours ago
:::::: commit date: 10 months ago
config: i386-randconfig-m021-20220502 (https://download.01.org/0day-ci/archive/20220504/202205041036.DmkusTeb-lkp(a)intel.com/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/gpu/drm/i915/gem/i915_gem_ttm.c:898 i915_gem_ttm_system_setup() warn: should 'totalram_pages() << 12' be a 64 bit type?

vim +898 drivers/gpu/drm/i915/gem/i915_gem_ttm.c

32b7cf51a441270 Thomas Hellström 2021-06-24  890  
32b7cf51a441270 Thomas Hellström 2021-06-24  891  struct intel_memory_region *
32b7cf51a441270 Thomas Hellström 2021-06-24  892  i915_gem_ttm_system_setup(struct drm_i915_private *i915,
32b7cf51a441270 Thomas Hellström 2021-06-24  893  			  u16 type, u16 instance)
32b7cf51a441270 Thomas Hellström 2021-06-24  894  {
32b7cf51a441270 Thomas Hellström 2021-06-24  895  	struct intel_memory_region *mr;
32b7cf51a441270 Thomas Hellström 2021-06-24  896  
32b7cf51a441270 Thomas Hellström 2021-06-24  897  	mr = intel_memory_region_create(i915, 0,
32b7cf51a441270 Thomas Hellström 2021-06-24 @898  					totalram_pages() << PAGE_SHIFT,

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