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

Commit b67a8aa1 authored by Shrenuj Bansal's avatar Shrenuj Bansal
Browse files

msm: kgsl: Add registers and function to read the RBBM_ALWAYSON_COUNTER 



Add the appropriate registers to the a4xx register list and add
a function to read the RBBM_ALWAYSON_COUNTER. This counter is
connected to a 19.2 MHz clock and gives us the number of ticks
since the GPU has been on.

Change-Id: Ibc73eb5c3a5c74c39dd483bc16bc8e7f488fa73f
Signed-off-by: default avatarShrenuj Bansal <shrenujb@codeaurora.org>
parent 430983de

drivers/gpu/msm/a4xx_reg.h

+3 −0
Original line number Diff line number Diff line
@@ -83,6 +83,7 @@ enum a4xx_rb_perfctr_rb_sel { 
#define A4XX_RBBM_INTERFACE_HANG_INT_CTL	0x2f

#define A4XX_RBBM_INT_CLEAR_CMD			0x36

#define A4XX_RBBM_INT_0_MASK			0x37

#define A4XX_RBBM_ALWAYSON_COUNTER_CNTL		0x3d

#define A4XX_RBBM_RBBM_CTL			0x3e

#define A4XX_RBBM_CLOCK_CTL2			0x42

#define A4XX_RBBM_BLOCK_SW_RESET_CMD		0x45
@@ -381,6 +382,8 @@ enum a4xx_rb_perfctr_rb_sel { 
#define A4XX_RBBM_PERFCTR_PWR_0_HI		0x167

#define A4XX_RBBM_PERFCTR_PWR_1_LO		0x168

#define A4XX_RBBM_PERFCTR_PWR_1_HI		0x169

#define A4XX_RBBM_ALWAYSON_COUNTER_LO		0x16e

#define A4XX_RBBM_ALWAYSON_COUNTER_HI		0x16f

#define A4XX_RBBM_PERFCTR_CTL			0x170

#define A4XX_RBBM_PERFCTR_LOAD_CMD0		0x171

#define A4XX_RBBM_PERFCTR_LOAD_CMD1		0x172

drivers/gpu/msm/adreno_a4xx.c

+10 −0
Original line number Diff line number Diff line
@@ -709,6 +709,16 @@ uint64_t a4xx_perfcounter_read_vbif_pwr(struct adreno_device *adreno_dev, 
						.regs[counter].value;

}



uint64_t a4xx_alwayson_counter_read(struct adreno_device *adreno_dev)

{

	unsigned int lo, hi;



	kgsl_regread(&adreno_dev->dev, A4XX_RBBM_ALWAYSON_COUNTER_LO, &lo);

	kgsl_regread(&adreno_dev->dev, A4XX_RBBM_ALWAYSON_COUNTER_HI, &hi);



	return (((uint64_t) hi) << 32) | lo;

}



static void a4xx_err_callback(struct adreno_device *adreno_dev, int bit)

{

	struct kgsl_device *device = &adreno_dev->dev;

drivers/gpu/msm/adreno_a4xx.h

+2 −0
Original line number Diff line number Diff line
@@ -33,6 +33,8 @@ void a4xx_perfcounter_disable_vbif_pwr(struct adreno_device *adreno_dev, 
uint64_t a4xx_perfcounter_read_vbif_pwr(struct adreno_device *adreno_dev,

			unsigned int counter);



uint64_t a4xx_alwayson_counter_read(struct adreno_device *adreno_dev);



void a4xx_snapshot(struct adreno_device *adreno_dev,

		struct kgsl_snapshot *snapshot);