<html> <head> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> </head> <body text="#000000" bgcolor="#FFFFFF"> <div class="moz-cite-prefix">Am 15.07.2016 um 10:59 schrieb Wang, Qingqing: </div> <blockquote cite="mid:CY1PR12MB050892397B75C63C46A3CEAFEC330@CY1PR12MB0508.namprd12.prod.outlook.com" type="cite"> <meta http-equiv="Context-Type" content="text/html; charset=gb2312"> <meta name="Generator" content="Microsoft Exchange Server"> <div id="divtagdefaultwrapper"> +static int vce_v3_0_firmware_loaded(struct amdgpu_device *adev) +{ + int i, j; + + for (i = 0; i < 10; ++i) { + uint32_t status; Please move the definition of status to the start of the function and give it an intial value. </div> </blockquote> NAK, that is exactly what we should *NOT* do here. "status" is just a temporary variable for the register content and as such should only be declared where needed. Additional to that please stop initializing variables when that isn't necessary, we are already getting patches to remove that cruft from all over the code. What you should clearly do on the other hand is sending the patches as text, not HTML mail. We can really review them this way. Regards, Christian. <blockquote cite="mid:CY1PR12MB050892397B75C63C46A3CEAFEC330@CY1PR12MB0508.namprd12.prod.outlook.com" type="cite"> <div id="divtagdefaultwrapper"> With that fixed. Reviewed-by: Ken Wang <a class="moz-txt-link-rfc2396E" href="mailto:Qingqing.Wang@amd.com"><Qingqing.Wang@amd.com></a> </div> <hr tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr">发件人: amd-gfx <a class="moz-txt-link-rfc2396E" href="mailto:amd-gfx-bounces@lists.freedesktop.org"><amd-gfx-bounces@lists.freedesktop.org></a> 代表 Qu, Jim <a class="moz-txt-link-rfc2396E" href="mailto:Jim.Qu@amd.com"><Jim.Qu@amd.com></a> 发送时间: 2016年7月15日 10:45:07 收件人: <a class="moz-txt-link-abbreviated" href="mailto:amd-gfx@lists.freedesktop.org">amd-gfx@lists.freedesktop.org</a> 主题: 答复: [v2] drm/amdgpu: S3 resume fail on Polaris10 <div> </div> </div> <div> <meta content="text/html; charset=UTF-8"> <div dir="ltr"> <div id="x_divtagdefaultwrapper"> Hi: Patch has updated, Please review. Thanks JimQu </div> <hr tabindex="-1"> <div id="x_divRplyFwdMsg" dir="ltr">发件人: jimqu <a class="moz-txt-link-rfc2396E" href="mailto:Jim.Qu@amd.com"><Jim.Qu@amd.com></a> 发送时间: 2016年7月15日 10:33:56 收件人: <a class="moz-txt-link-abbreviated" href="mailto:amd-gfx@lists.freedesktop.org">amd-gfx@lists.freedesktop.org</a> 抄送: Qu, Jim 主题: [v2] drm/amdgpu: S3 resume fail on Polaris10 <div> </div> </div> </div> <div class="PlainText">Sometimes, driver can not return from fence waiting when doing VCE ring ib test. The issue is a asic special and random issue. so adjust VCE suspend and resume sequence. Change-Id: If9e2006521ff17e55c33b18b1500126b9e7f2874 Signed-off-by: JimQu <a class="moz-txt-link-rfc2396E" href="mailto:Jim.Qu@amd.com"><Jim.Qu@amd.com></a> --- drivers/gpu/drm/amd/amdgpu/vce_v3_0.c | 143 +++++++++++++++++++++++----------- 1 file changed, 97 insertions(+), 46 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c index 30e8099..885b625 100644 --- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c @@ -43,6 +43,7 @@ #define mmVCE_LMI_VCPU_CACHE_40BIT_BAR0 0x8616 #define mmVCE_LMI_VCPU_CACHE_40BIT_BAR1 0x8617 #define mmVCE_LMI_VCPU_CACHE_40BIT_BAR2 0x8618 +#define VCE_STATUS_VCPU_REPORT_FW_LOADED_MASK 0x02 #define VCE_V3_0_FW_SIZE (384 * 1024) #define VCE_V3_0_STACK_SIZE (64 * 1024) @@ -51,6 +52,7 @@ static void vce_v3_0_mc_resume(struct amdgpu_device *adev, int idx); static void vce_v3_0_set_ring_funcs(struct amdgpu_device *adev); static void vce_v3_0_set_irq_funcs(struct amdgpu_device *adev); +static int vce_v3_0_wait_for_idle(void *handle); /** * vce_v3_0_ring_get_rptr - get read pointer @@ -205,6 +207,32 @@ static void vce_v3_0_set_vce_sw_clock_gating(struct amdgpu_device *adev, vce_v3_0_override_vce_clock_gating(adev, false); } +static int vce_v3_0_firmware_loaded(struct amdgpu_device *adev) +{ + int i, j; + + for (i = 0; i < 10; ++i) { + uint32_t status; + for (j = 0; j < 100; ++j) { + status = RREG32(mmVCE_STATUS); + if (status & VCE_STATUS_VCPU_REPORT_FW_LOADED_MASK) + return 0; + mdelay(10); + } + + DRM_ERROR("VCE not responding, trying to reset the ECPU!!!\n"); + WREG32_P(mmVCE_SOFT_RESET, + VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK, + ~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK); + mdelay(10); + WREG32_P(mmVCE_SOFT_RESET, 0, + ~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK); + mdelay(10); + } + + return -ETIMEDOUT; +} + /** * vce_v3_0_start - start VCE block * @@ -215,11 +243,24 @@ static void vce_v3_0_set_vce_sw_clock_gating(struct amdgpu_device *adev, static int vce_v3_0_start(struct amdgpu_device *adev) { struct amdgpu_ring *ring; - int idx, i, j, r; + int idx, r; + + ring = &adev->vce.ring[0]; + WREG32(mmVCE_RB_RPTR, ring->wptr); + WREG32(mmVCE_RB_WPTR, ring->wptr); + WREG32(mmVCE_RB_BASE_LO, ring->gpu_addr); + WREG32(mmVCE_RB_BASE_HI, upper_32_bits(ring->gpu_addr)); + WREG32(mmVCE_RB_SIZE, ring->ring_size / 4); + + ring = &adev->vce.ring[1]; + WREG32(mmVCE_RB_RPTR2, ring->wptr); + WREG32(mmVCE_RB_WPTR2, ring->wptr); + WREG32(mmVCE_RB_BASE_LO2, ring->gpu_addr); + WREG32(mmVCE_RB_BASE_HI2, upper_32_bits(ring->gpu_addr)); + WREG32(mmVCE_RB_SIZE2, ring->ring_size / 4); mutex_lock(&adev->grbm_idx_mutex); for (idx = 0; idx < 2; ++idx) { - if (adev->vce.harvest_config & (1 << idx)) continue; @@ -233,48 +274,24 @@ static int vce_v3_0_start(struct amdgpu_device *adev) vce_v3_0_mc_resume(adev, idx); - /* set BUSY flag */ - WREG32_P(mmVCE_STATUS, 1, ~1); + WREG32_P(mmVCE_STATUS, VCE_STATUS__JOB_BUSY_MASK, + ~VCE_STATUS__JOB_BUSY_MASK); + if (adev->asic_type >= CHIP_STONEY) WREG32_P(mmVCE_VCPU_CNTL, 1, ~0x200001); else WREG32_P(mmVCE_VCPU_CNTL, VCE_VCPU_CNTL__CLK_EN_MASK, ~VCE_VCPU_CNTL__CLK_EN_MASK); - WREG32_P(mmVCE_SOFT_RESET, - VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK, - ~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK); - - mdelay(100); - WREG32_P(mmVCE_SOFT_RESET, 0, ~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK); - for (i = 0; i < 10; ++i) { - uint32_t status; - for (j = 0; j < 100; ++j) { - status = RREG32(mmVCE_STATUS); - if (status & 2) - break; - mdelay(10); - } - r = 0; - if (status & 2) - break; - - DRM_ERROR("VCE not responding, trying to reset the ECPU!!!\n"); - WREG32_P(mmVCE_SOFT_RESET, - VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK, - ~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK); - mdelay(10); - WREG32_P(mmVCE_SOFT_RESET, 0, - ~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK); - mdelay(10); - r = -1; - } + mdelay(100); + + r = vce_v3_0_firmware_loaded(adev); /* clear BUSY flag */ - WREG32_P(mmVCE_STATUS, 0, ~1); + WREG32_P(mmVCE_STATUS, 0, ~VCE_STATUS__JOB_BUSY_MASK); /* Set Clock-Gating off */ if (adev->cg_flags & AMD_CG_SUPPORT_VCE_MGCG) @@ -290,19 +307,46 @@ static int vce_v3_0_start(struct amdgpu_device *adev) WREG32_P(mmGRBM_GFX_INDEX, 0, ~GRBM_GFX_INDEX__VCE_INSTANCE_MASK); mutex_unlock(&adev->grbm_idx_mutex); - ring = &adev->vce.ring[0]; - WREG32(mmVCE_RB_RPTR, ring->wptr); - WREG32(mmVCE_RB_WPTR, ring->wptr); - WREG32(mmVCE_RB_BASE_LO, ring->gpu_addr); - WREG32(mmVCE_RB_BASE_HI, upper_32_bits(ring->gpu_addr)); - WREG32(mmVCE_RB_SIZE, ring->ring_size / 4); + return 0; +} - ring = &adev->vce.ring[1]; - WREG32(mmVCE_RB_RPTR2, ring->wptr); - WREG32(mmVCE_RB_WPTR2, ring->wptr); - WREG32(mmVCE_RB_BASE_LO2, ring->gpu_addr); - WREG32(mmVCE_RB_BASE_HI2, upper_32_bits(ring->gpu_addr)); - WREG32(mmVCE_RB_SIZE2, ring->ring_size / 4); +static int vce_v3_0_stop(struct amdgpu_device *adev) +{ + int idx; + + mutex_lock(&adev->grbm_idx_mutex); + for (idx = 0; idx < 2; ++idx) { + if (adev->vce.harvest_config & (1 << idx)) + continue; + + if (idx == 0) + WREG32_P(mmGRBM_GFX_INDEX, 0, + ~GRBM_GFX_INDEX__VCE_INSTANCE_MASK); + else + WREG32_P(mmGRBM_GFX_INDEX, + GRBM_GFX_INDEX__VCE_INSTANCE_MASK, + ~GRBM_GFX_INDEX__VCE_INSTANCE_MASK); + + if (adev->asic_type >= CHIP_STONEY) + WREG32_P(mmVCE_VCPU_CNTL, 0, ~0x200001); + else + WREG32_P(mmVCE_VCPU_CNTL, 0, + ~VCE_VCPU_CNTL__CLK_EN_MASK); + /* hold on ECPU */ + WREG32_P(mmVCE_SOFT_RESET, + VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK, + ~VCE_SOFT_RESET__ECPU_SOFT_RESET_MASK); + + /* clear BUSY flag */ + WREG32_P(mmVCE_STATUS, 0, ~VCE_STATUS__JOB_BUSY_MASK); + + /* Set Clock-Gating off */ + if (adev->cg_flags & AMD_CG_SUPPORT_VCE_MGCG) + vce_v3_0_set_vce_sw_clock_gating(adev, false); + } + + WREG32_P(mmGRBM_GFX_INDEX, 0, ~GRBM_GFX_INDEX__VCE_INSTANCE_MASK); + mutex_unlock(&adev->grbm_idx_mutex); return 0; } @@ -441,7 +485,14 @@ static int vce_v3_0_hw_init(void *handle) static int vce_v3_0_hw_fini(void *handle) { - return 0; + int r; + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + r = vce_v3_0_wait_for_idle(handle); + if (r) + return r; + + return vce_v3_0_stop(adev); } static int vce_v3_0_suspend(void *handle) -- 1.9.1 </div> </div> <fieldset class="mimeAttachmentHeader"></fieldset> <pre wrap="">_______________________________________________ amd-gfx mailing list <a class="moz-txt-link-abbreviated" href="mailto:amd-gfx@lists.freedesktop.org">amd-gfx@lists.freedesktop.org</a> <a class="moz-txt-link-freetext" href="https://lists.freedesktop.org/mailman/listinfo/amd-gfx">https://lists.freedesktop.org/mailman/listinfo/amd-gfx</a> </pre> </blockquote> </body> </html>