<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style> </head> <body dir="ltr"> <p style="font-family:Arial;font-size:10pt;color:#0078D7;margin:15pt;" align="Left"> [AMD Official Use Only - Internal Distribution Only]<br> </p> <br> <div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> <span style="font-family: Calibri, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255); display: inline !important">Reviewed-by: Yong Zhao <Yong.Zhao@amd.com></span><br> </div> <div id="appendonsend"></div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Felix Kuehling <Felix.Kuehling@amd.com><br> <b>Sent:</b> Monday, November 25, 2019 4:28 PM<br> <b>To:</b> amd-gfx@lists.freedesktop.org <amd-gfx@lists.freedesktop.org><br> <b>Subject:</b> [PATCH 1/1] drm/amdgpu: Raise KFD unpinned system memory limit</font> <div> </div> </div> <div class="BodyFragment"><font size="2"><span style="font-size:11pt;"> <div class="PlainText">Allow KFD applications to use more unpinned system memory through<br> HMM.<br> <br> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com><br> ---<br> drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 4 ++--<br> 1 file changed, 2 insertions(+), 2 deletions(-)<br> <br> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c<br> index e43a95514b41..b6d1958d514f 100644<br> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c<br> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c<br> @@ -85,7 +85,7 @@ static bool check_if_add_bo_to_vm(struct amdgpu_vm *avm,<br> }<br> <br> /* Set memory usage limits. Current, limits are<br> - * System (TTM + userptr) memory - 3/4th System RAM<br> + * System (TTM + userptr) memory - 15/16th System RAM<br> * TTM memory - 3/8th System RAM<br> */<br> void amdgpu_amdkfd_gpuvm_init_mem_limits(void)<br> @@ -98,7 +98,7 @@ void amdgpu_amdkfd_gpuvm_init_mem_limits(void)<br> mem *= si.mem_unit;<br> <br> spin_lock_init(&kfd_mem_limit.mem_limit_lock);<br> - kfd_mem_limit.max_system_mem_limit = (mem >> 1) + (mem >> 2);<br> + kfd_mem_limit.max_system_mem_limit = mem - (mem >> 4);<br> kfd_mem_limit.max_ttm_mem_limit = (mem >> 1) - (mem >> 3);<br> pr_debug("Kernel memory limit %lluM, TTM limit %lluM\n",<br> (kfd_mem_limit.max_system_mem_limit >> 20),<br> -- <br> 2.24.0<br> <br> _______________________________________________<br> amd-gfx mailing list<br> amd-gfx@lists.freedesktop.org<br> <a href="https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=02%7C01%7Cyong.zhao%40amd.com%7C808d3732d1d74a7cd05208d771ee6f9b%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637103141200385929&sdata=yywimvE%2FuidOPQb9IYLZi95MbfnFrW0Swmp11iYi4%2BI%3D&reserved=0">https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=02%7C01%7Cyong.zhao%40amd.com%7C808d3732d1d74a7cd05208d771ee6f9b%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637103141200385929&sdata=yywimvE%2FuidOPQb9IYLZi95MbfnFrW0Swmp11iYi4%2BI%3D&reserved=0</a></div> </span></font></div> </div> </body> </html>