<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Arial,Helvetica,sans-serif;"> <p>Hmm, I wonder if this fix CP power gating issues ... on Carrizo/Stoney...</p> <br> <br> <div style="color: rgb(0, 0, 0);"> <div> <hr tabindex="-1" style="display:inline-block; width:98%"> <div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Monk Liu <Monk.Liu@amd.com><br> <b>Sent:</b> Wednesday, September 28, 2016 04:36<br> <b>To:</b> amd-gfx@lists.freedesktop.org<br> <b>Cc:</b> Min, Frank<br> <b>Subject:</b> [PATCH 8/9] drm/amdgpu:wptr poll address of gfx8 is needed</font> <div> </div> </div> </div> <font size="2"><span style="font-size:10pt;"> <div class="PlainText">From: Frank Min <Frank.Min@amd.com><br> <br> for GFX8, gfx ring's wptr_addr is needed by SRIOV & CP for polling.<br> <br> Change-Id: I14477577ef50d1ac90ccc32d41819276811732b7<br> Signed-off-by: Frank Min <Frank.Min@amd.com><br> ---<br> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 5 ++++-<br> 1 file changed, 4 insertions(+), 1 deletion(-)<br> <br> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c<br> index 097108a..98ef1fe 100644<br> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c<br> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c<br> @@ -4338,7 +4338,7 @@ static int gfx_v8_0_cp_gfx_resume(struct amdgpu_device *adev)<br> struct amdgpu_ring *ring;<br> u32 tmp;<br> u32 rb_bufsz;<br> - u64 rb_addr, rptr_addr;<br> + u64 rb_addr, rptr_addr, wptr_gpu_addr;<br> int r;<br> <br> /* Set the write pointer delay */<br> @@ -4369,6 +4369,9 @@ static int gfx_v8_0_cp_gfx_resume(struct amdgpu_device *adev)<br> WREG32(mmCP_RB0_RPTR_ADDR, lower_32_bits(rptr_addr));<br> WREG32(mmCP_RB0_RPTR_ADDR_HI, upper_32_bits(rptr_addr) & 0xFF);<br> <br> + wptr_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);<br> + WREG32(mmCP_RB_WPTR_POLL_ADDR_LO, lower_32_bits(wptr_gpu_addr));<br> + WREG32(mmCP_RB_WPTR_POLL_ADDR_HI, upper_32_bits(wptr_gpu_addr));<br> mdelay(1);<br> WREG32(mmCP_RB0_CNTL, tmp);<br> <br> -- <br> 1.9.1<br> <br> _______________________________________________<br> amd-gfx mailing list<br> amd-gfx@lists.freedesktop.org<br> <a href="https://lists.freedesktop.org/mailman/listinfo/amd-gfx" id="LPlnk21963" previewremoved="true">https://lists.freedesktop.org/mailman/listinfo/amd-gfx</a> <div id="LPBorder_GT_14750700535950.9733653182953386" style="margin-bottom: 20px; overflow: auto; width: 100%; text-indent: 0px;"> <table id="LPContainer_14750700535930.44953353891151226" cellspacing="0" style="width: 90%; background-color: rgb(255, 255, 255); position: relative; overflow: auto; padding-top: 20px; padding-bottom: 20px; margin-top: 20px; border-top: 1px dotted rgb(200, 200, 200); border-bottom: 1px dotted rgb(200, 200, 200);"> <tbody> <tr valign="top" style="border-spacing: 0px;"> <td id="TextCell_14750700535940.6281875122374723" colspan="2" style="vertical-align: top; position: relative; padding: 0px; display: table-cell;"> <div id="LPRemovePreviewContainer_14750700535940.2038259448692903"></div> <div id="LPTitle_14750700535940.16791780469974915" style="top: 0px; color: rgb(59, 87, 119); font-weight: normal; font-size: 21px; font-family: wf_segoe-ui_light, "Segoe UI Light", "Segoe WP Light", "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; line-height: 21px;"> <a id="LPUrlAnchor_14750700535950.5227620056641726" href="https://lists.freedesktop.org/mailman/listinfo/amd-gfx" target="_blank" style="text-decoration: none;">amd-gfx Info Page - lists.freedesktop.org</a></div> <div id="LPMetadata_14750700535950.5392573984284703" style="margin: 10px 0px 16px; color: rgb(102, 102, 102); font-weight: normal; font-family: wf_segoe-ui_normal, "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; font-size: 14px; line-height: 14px;"> lists.freedesktop.org</div> <div id="LPDescription_14750700535950.36316319059213775" style="display: block; color: rgb(102, 102, 102); font-weight: normal; font-family: wf_segoe-ui_normal, "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; font-size: 14px; line-height: 20px; max-height: 100px; overflow: hidden;"> To see the collection of prior postings to the list, visit the amd-gfx Archives. Using amd-gfx: To post a message to all the list members, send email ...</div> </td> </tr> </tbody> </table> </div> <br> <br> </div> </span></font></div> </div> </body> </html>