From 90aca4d2740255bd130ea71a91530b9920c70abe Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Tue, 9 Mar 2010 14:45:12 +0000 Subject: drm/radeon/kms: simplify & improve GPU reset V2 This simplify and improve GPU reset for R1XX-R6XX hw, it's not 100% reliable here are result: - R1XX/R2XX works bunch of time in a row, sometimes it seems it can work indifinitly - R3XX/R3XX the most unreliable one, sometimes you will be able to reset few times, sometimes not even once - R5XX more reliable than previous hw, seems to work most of the times but once in a while it fails for no obvious reasons (same status than previous reset just no same happy ending) - R6XX/R7XX are lot more reliable with this patch, still it seems that it can fail after a bunch (reset every 2sec for 3hour bring down the GPU & computer) This have been tested on various hw, for some odd reasons i wasn't able to lockup RS480/RS690 (while they use to love locking up). Note that on R1XX-R5XX the cursor will disapear after lockup haven't checked why, switch to console and back to X will restore cursor. Next step is to record the bogus command that leaded to the lockup. V2 Fix r6xx resume path to avoid reinitializing blit module, use the gpu_lockup boolean to avoid entering inifinite waiting loop on fence while reiniting the GPU Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/rv515.c | 90 ------------------------------------------ 1 file changed, 90 deletions(-) (limited to 'drivers/gpu/drm/radeon/rv515.c') diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c index 2a4c01f5cf12..b42f8d90a0f6 100644 --- a/drivers/gpu/drm/radeon/rv515.c +++ b/drivers/gpu/drm/radeon/rv515.c @@ -146,16 +146,11 @@ void rv515_gpu_init(struct radeon_device *rdev) { unsigned pipe_select_current, gb_pipe_select, tmp; - r100_hdp_reset(rdev); - r100_rb2d_reset(rdev); - if (r100_gui_wait_for_idle(rdev)) { printk(KERN_WARNING "Failed to wait GUI idle while " "reseting GPU. Bad things might happen.\n"); } - rv515_vga_render_disable(rdev); - r420_pipes_init(rdev); gb_pipe_select = RREG32(0x402C); tmp = RREG32(0x170C); @@ -173,91 +168,6 @@ void rv515_gpu_init(struct radeon_device *rdev) } } -int rv515_ga_reset(struct radeon_device *rdev) -{ - uint32_t tmp; - bool reinit_cp; - int i; - - reinit_cp = rdev->cp.ready; - rdev->cp.ready = false; - for (i = 0; i < rdev->usec_timeout; i++) { - WREG32(CP_CSQ_MODE, 0); - WREG32(CP_CSQ_CNTL, 0); - WREG32(RBBM_SOFT_RESET, 0x32005); - (void)RREG32(RBBM_SOFT_RESET); - udelay(200); - WREG32(RBBM_SOFT_RESET, 0); - /* Wait to prevent race in RBBM_STATUS */ - mdelay(1); - tmp = RREG32(RBBM_STATUS); - if (tmp & ((1 << 20) | (1 << 26))) { - DRM_ERROR("VAP & CP still busy (RBBM_STATUS=0x%08X)\n", tmp); - /* GA still busy soft reset it */ - WREG32(0x429C, 0x200); - WREG32(VAP_PVS_STATE_FLUSH_REG, 0); - WREG32(0x43E0, 0); - WREG32(0x43E4, 0); - WREG32(0x24AC, 0); - } - /* Wait to prevent race in RBBM_STATUS */ - mdelay(1); - tmp = RREG32(RBBM_STATUS); - if (!(tmp & ((1 << 20) | (1 << 26)))) { - break; - } - } - for (i = 0; i < rdev->usec_timeout; i++) { - tmp = RREG32(RBBM_STATUS); - if (!(tmp & ((1 << 20) | (1 << 26)))) { - DRM_INFO("GA reset succeed (RBBM_STATUS=0x%08X)\n", - tmp); - DRM_INFO("GA_IDLE=0x%08X\n", RREG32(0x425C)); - DRM_INFO("RB3D_RESET_STATUS=0x%08X\n", RREG32(0x46f0)); - DRM_INFO("ISYNC_CNTL=0x%08X\n", RREG32(0x1724)); - if (reinit_cp) { - return r100_cp_init(rdev, rdev->cp.ring_size); - } - return 0; - } - DRM_UDELAY(1); - } - tmp = RREG32(RBBM_STATUS); - DRM_ERROR("Failed to reset GA ! (RBBM_STATUS=0x%08X)\n", tmp); - return -1; -} - -int rv515_asic_reset(struct radeon_device *rdev) -{ - uint32_t status; - - /* reset order likely matter */ - status = RREG32(RBBM_STATUS); - /* reset HDP */ - r100_hdp_reset(rdev); - /* reset rb2d */ - if (status & ((1 << 17) | (1 << 18) | (1 << 27))) { - r100_rb2d_reset(rdev); - } - /* reset GA */ - if (status & ((1 << 20) | (1 << 26))) { - rv515_ga_reset(rdev); - } - /* reset CP */ - status = RREG32(RBBM_STATUS); - if (status & (1 << 16)) { - r100_cp_reset(rdev); - } - /* Check if GPU is idle */ - status = RREG32(RBBM_STATUS); - if (status & (1 << 31)) { - DRM_ERROR("Failed to reset GPU (RBBM_STATUS=0x%08X)\n", status); - return -1; - } - DRM_INFO("GPU reset succeed (RBBM_STATUS=0x%08X)\n", status); - return 0; -} - static void rv515_vram_get_type(struct radeon_device *rdev) { uint32_t tmp; -- cgit v1.2.3-59-g8ed1b