Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 030473ed authored by Lynus Vaz's avatar Lynus Vaz
Browse files

msm: kgsl: Dump some A6XX registers before crashdump 



The VBIF and certain status registers are modified when the crashdump
script runs. Dump these registers before running the crashdump script.

Change-Id: I0d3f8df553273f399f5faf66d1ff52b33ae07a01
Signed-off-by: default avatarLynus Vaz <lvaz@codeaurora.org>
parent 2d097a73

drivers/gpu/msm/adreno_a6xx_snapshot.c

+42 −13
Original line number Diff line number Diff line
@@ -257,16 +257,17 @@ static const unsigned int a6xx_registers[] = { 
	0x0000, 0x0002, 0x0010, 0x0010, 0x0012, 0x0012, 0x0018, 0x001B,

	0x001e, 0x0032, 0x0038, 0x003C, 0x0042, 0x0042, 0x0044, 0x0044,

	0x0047, 0x0047, 0x0056, 0x0056, 0x00AD, 0x00AE, 0x00B0, 0x00FB,

	0x0100, 0x011D, 0x0200, 0x020D, 0x0210, 0x0213, 0x0218, 0x023D,

	0x0400, 0x04F9, 0x0500, 0x0500, 0x0505, 0x050B, 0x050E, 0x0511,

	0x0533, 0x0533, 0x0540, 0x0555,

	0x0100, 0x011D, 0x0200, 0x020D, 0x0218, 0x023D, 0x0400, 0x04F9,

	0x0500, 0x0500, 0x0505, 0x050B, 0x050E, 0x0511, 0x0533, 0x0533,

	0x0540, 0x0555,

	/* CP */

	0x0800, 0x0808, 0x0810, 0x0813, 0x0820, 0x0821, 0x0823, 0x0827,

	0x0830, 0x0833, 0x0840, 0x0843, 0x084F, 0x086F, 0x0880, 0x088A,

	0x08A0, 0x08AB, 0x08C0, 0x08C4, 0x08D0, 0x08DD, 0x08F0, 0x08F3,

	0x0900, 0x0903, 0x0908, 0x0911, 0x0928, 0x093E, 0x0942, 0x094D,

	0x0980, 0x0984, 0x098D, 0x0996, 0x0998, 0x099E, 0x09A0, 0x09A6,

	0x09A8, 0x09AE, 0x09B0, 0x09B1, 0x09C2, 0x09C8, 0x0A00, 0x0A03,

	0x0800, 0x0808, 0x0810, 0x0813, 0x0820, 0x0821, 0x0823, 0x0824,

	0x0826, 0x0827, 0x0830, 0x0833, 0x0840, 0x0843, 0x084F, 0x086F,

	0x0880, 0x088A, 0x08A0, 0x08AB, 0x08C0, 0x08C4, 0x08D0, 0x08DD,

	0x08F0, 0x08F3, 0x0900, 0x0903, 0x0908, 0x0911, 0x0928, 0x093E,

	0x0942, 0x094D, 0x0980, 0x0984, 0x098D, 0x0996, 0x0998, 0x099E,

	0x09A0, 0x09A6, 0x09A8, 0x09AE, 0x09B0, 0x09B1, 0x09C2, 0x09C8,

	0x0A00, 0x0A03,

	/* VSC */

	0x0C00, 0x0C04, 0x0C06, 0x0C06, 0x0C10, 0x0CD9, 0x0E00, 0x0E0E,

	/* UCHE */
@@ -290,6 +291,18 @@ static const unsigned int a6xx_registers[] = { 
	0xA630, 0xA630,

};



/*

 * Set of registers to dump for A6XX before actually triggering crash dumper.

 * Registers in pairs - first value is the start offset, second

 * is the stop offset (inclusive)

 */

static const unsigned int a6xx_pre_crashdumper_registers[] = {

	/* RBBM: RBBM_STATUS - RBBM_STATUS3 */

	0x210, 0x213,

	/* CP: CP_STATUS_1 */

	0x825, 0x825,

};



enum a6xx_debugbus_id {

	A6XX_DBGBUS_CP           = 0x1,

	A6XX_DBGBUS_RBBM         = 0x2,
@@ -562,6 +575,17 @@ static size_t a6xx_snapshot_registers(struct kgsl_device *device, u8 *buf, 
	return (count * 8) + sizeof(*header);

}



static size_t a6xx_snapshot_pre_crashdump_regs(struct kgsl_device *device,

		u8 *buf, size_t remain, void *priv)

{

	struct kgsl_snapshot_registers pre_cdregs = {

			.regs = a6xx_pre_crashdumper_registers,

			.count = ARRAY_SIZE(a6xx_pre_crashdumper_registers)/2,

	};



	return kgsl_snapshot_dump_registers(device, buf, remain, &pre_cdregs);

}



static size_t a6xx_snapshot_shader_memory(struct kgsl_device *device,

		u8 *buf, size_t remain, void *priv)

{
@@ -1385,16 +1409,21 @@ void a6xx_snapshot(struct adreno_device *adreno_dev, 
	struct adreno_gpudev *gpudev = ADRENO_GPU_DEVICE(adreno_dev);

	struct adreno_snapshot_data *snap_data = gpudev->snapshot_data;



	/* Try to run the crash dumper */

	_a6xx_do_crashdump(device);



	/* Dump the registers which get affected by crash dumper trigger */

	kgsl_snapshot_add_section(device, KGSL_SNAPSHOT_SECTION_REGS,

		snapshot, a6xx_snapshot_registers, NULL);

		snapshot, a6xx_snapshot_pre_crashdump_regs, NULL);



	/* Dump vbif registers as well which get affected by crash dumper */

	adreno_snapshot_vbif_registers(device, snapshot,

		a6xx_vbif_snapshot_registers,

		ARRAY_SIZE(a6xx_vbif_snapshot_registers));



	/* Try to run the crash dumper */

	_a6xx_do_crashdump(device);



	kgsl_snapshot_add_section(device, KGSL_SNAPSHOT_SECTION_REGS,

		snapshot, a6xx_snapshot_registers, NULL);



	/* CP_SQE indexed registers */

	kgsl_snapshot_indexed_registers(device, snapshot,

		A6XX_CP_SQE_STAT_ADDR, A6XX_CP_SQE_STAT_DATA,