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drm: msm: a6xx: fix debug bus register configuration

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[ Upstream commit 7f4009c4bbea4438b50f3b12d1c57da3f5cd8db3 ]

Fix the cx debugbus related register configuration, to collect accurate
bus data during gpu snapshot. This helps with complete snapshot dump
and also complete proper GPU recovery.

Fixes: 1707add815 ("drm/msm/a6xx: Add a6xx gpu state")
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/339165
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sharat Masetty 2019-11-06 17:19:23 +05:30 • committed by Greg Kroah-Hartman
commit 2eb7ab5e75
1 changed files with 12 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

24
drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
View file

@ -352,26 +352,26 @@ static void a6xx_get_debugbus(struct msm_gpu *gpu,
cxdbg = ioremap(res->start, resource_size(res));
if (cxdbg) {
cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_CNTLT,
cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_CNTLT,
A6XX_DBGC_CFG_DBGBUS_CNTLT_SEGT(0xf));
cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_CNTLM,
cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_CNTLM,
A6XX_DBGC_CFG_DBGBUS_CNTLM_ENABLE(0xf));
cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_IVTL_0, 0);
cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_IVTL_1, 0);
cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_IVTL_2, 0);
cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_IVTL_3, 0);
cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_IVTL_0, 0);
cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_IVTL_1, 0);
cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_IVTL_2, 0);
cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_IVTL_3, 0);
cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_BYTEL_0,
cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_BYTEL_0,
0x76543210);
cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_BYTEL_1,
cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_BYTEL_1,
0xFEDCBA98);
cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_MASKL_0, 0);
cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_MASKL_1, 0);
cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_MASKL_2, 0);
cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_MASKL_3, 0);
cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_MASKL_0, 0);
cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_MASKL_1, 0);
cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_MASKL_2, 0);
cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_MASKL_3, 0);
}
a6xx_state->debugbus = state_kcalloc(a6xx_state,