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memory: tegra: Changes for v5.2-rc1

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These are a set of fixes for various issues related to the Tegra memory
 controller.
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Merge tag 'tegra-for-5.2-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

memory: tegra: Changes for v5.2-rc1

These are a set of fixes for various issues related to the Tegra memory
controller.

* tag 'tegra-for-5.2-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  memory: tegra: Fix a typos for "fdcdwr2" mc client
  Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+"
  memory: tegra: Replace readl-writel with mc_readl-mc_writel
  memory: tegra: Fix integer overflow on tick value calculation
  memory: tegra: Fix missed registers values latching
  memory: tegra: Properly spell "tegra"
  memory: tegra: Make terga20_mc_reset_ops static

Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2019-04-28 23:35:18 -07:00
commit 2195471254
9 changed files with 42 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
arch/arm/mach-tegra/iomap.h
View File

@ -79,24 +79,15 @@
#define TEGRA_PMC_BASE 0x7000E400
#define TEGRA_PMC_SIZE SZ_256
#define TEGRA_MC_BASE 0x7000F000
#define TEGRA_MC_SIZE SZ_1K
#define TEGRA_EMC_BASE 0x7000F400
#define TEGRA_EMC_SIZE SZ_1K
#define TEGRA114_MC_BASE 0x70019000
#define TEGRA114_MC_SIZE SZ_4K
#define TEGRA_EMC0_BASE 0x7001A000
#define TEGRA_EMC0_SIZE SZ_2K
#define TEGRA_EMC1_BASE 0x7001A800
#define TEGRA_EMC1_SIZE SZ_2K
#define TEGRA124_MC_BASE 0x70019000
#define TEGRA124_MC_SIZE SZ_4K
#define TEGRA124_EMC_BASE 0x7001B000
#define TEGRA124_EMC_SIZE SZ_2K

21
arch/arm/mach-tegra/sleep-tegra30.S
View File

@ -44,8 +44,6 @@
#define EMC_XM2VTTGENPADCTRL 0x310
#define EMC_XM2VTTGENPADCTRL2 0x314
#define MC_EMEM_ARB_CFG 0x90
#define PMC_CTRL 0x0
#define PMC_CTRL_SIDE_EFFECT_LP0 (1 << 14) /* enter LP0 when CPU pwr gated */
@ -420,22 +418,6 @@ _pll_m_c_x_done:
movweq r0, #:lower16:TEGRA124_EMC_BASE
movteq r0, #:upper16:TEGRA124_EMC_BASE
cmp r10, #TEGRA30
moveq r2, #0x20
movweq r4, #:lower16:TEGRA_MC_BASE
movteq r4, #:upper16:TEGRA_MC_BASE
cmp r10, #TEGRA114
moveq r2, #0x34
movweq r4, #:lower16:TEGRA114_MC_BASE
movteq r4, #:upper16:TEGRA114_MC_BASE
cmp r10, #TEGRA124
moveq r2, #0x20
movweq r4, #:lower16:TEGRA124_MC_BASE
movteq r4, #:upper16:TEGRA124_MC_BASE
ldr r1, [r5, r2] @ restore MC_EMEM_ARB_CFG
str r1, [r4, #MC_EMEM_ARB_CFG]
exit_self_refresh:
ldr r1, [r5, #0xC] @ restore EMC_XM2VTTGENPADCTRL
str r1, [r0, #EMC_XM2VTTGENPADCTRL]
@ -564,7 +546,6 @@ tegra30_sdram_pad_address:
.word TEGRA_PMC_BASE + PMC_IO_DPD_STATUS @0x14
.word TEGRA_CLK_RESET_BASE + CLK_RESET_CLK_SOURCE_MSELECT @0x18
.word TEGRA_CLK_RESET_BASE + CLK_RESET_SCLK_BURST @0x1c
.word TEGRA_MC_BASE + MC_EMEM_ARB_CFG @0x20
tegra30_sdram_pad_address_end:
tegra114_sdram_pad_address:
@ -581,7 +562,6 @@ tegra114_sdram_pad_address:
.word TEGRA_EMC1_BASE + EMC_AUTO_CAL_INTERVAL @0x28
.word TEGRA_EMC1_BASE + EMC_XM2VTTGENPADCTRL @0x2c
.word TEGRA_EMC1_BASE + EMC_XM2VTTGENPADCTRL2 @0x30
.word TEGRA114_MC_BASE + MC_EMEM_ARB_CFG @0x34
tegra114_sdram_pad_adress_end:
tegra124_sdram_pad_address:
@ -593,7 +573,6 @@ tegra124_sdram_pad_address:
.word TEGRA_PMC_BASE + PMC_IO_DPD_STATUS @0x14
.word TEGRA_CLK_RESET_BASE + CLK_RESET_CLK_SOURCE_MSELECT @0x18
.word TEGRA_CLK_RESET_BASE + CLK_RESET_SCLK_BURST @0x1c
.word TEGRA124_MC_BASE + MC_EMEM_ARB_CFG @0x20
tegra124_sdram_pad_address_end:
tegra30_sdram_pad_size:

34
drivers/memory/tegra/mc.c
View File

@ -51,6 +51,9 @@
#define MC_EMEM_ADR_CFG 0x54
#define MC_EMEM_ADR_CFG_EMEM_NUMDEV BIT(0)
#define MC_TIMING_CONTROL 0xfc
#define MC_TIMING_UPDATE BIT(0)
static const struct of_device_id tegra_mc_of_match[] = {
#ifdef CONFIG_ARCH_TEGRA_2x_SOC
{ .compatible = "nvidia,tegra20-mc-gart", .data = &tegra20_mc_soc },
@ -74,7 +77,7 @@ static const struct of_device_id tegra_mc_of_match[] = {
};
MODULE_DEVICE_TABLE(of, tegra_mc_of_match);
static int terga_mc_block_dma_common(struct tegra_mc *mc,
static int tegra_mc_block_dma_common(struct tegra_mc *mc,
const struct tegra_mc_reset *rst)
{
unsigned long flags;
@ -90,13 +93,13 @@ static int terga_mc_block_dma_common(struct tegra_mc *mc,
return 0;
}
static bool terga_mc_dma_idling_common(struct tegra_mc *mc,
static bool tegra_mc_dma_idling_common(struct tegra_mc *mc,
const struct tegra_mc_reset *rst)
{
return (mc_readl(mc, rst->status) & BIT(rst->bit)) != 0;
}
static int terga_mc_unblock_dma_common(struct tegra_mc *mc,
static int tegra_mc_unblock_dma_common(struct tegra_mc *mc,
const struct tegra_mc_reset *rst)
{
unsigned long flags;
@ -112,17 +115,17 @@ static int terga_mc_unblock_dma_common(struct tegra_mc *mc,
return 0;
}
static int terga_mc_reset_status_common(struct tegra_mc *mc,
static int tegra_mc_reset_status_common(struct tegra_mc *mc,
const struct tegra_mc_reset *rst)
{
return (mc_readl(mc, rst->control) & BIT(rst->bit)) != 0;
}
const struct tegra_mc_reset_ops terga_mc_reset_ops_common = {
.block_dma = terga_mc_block_dma_common,
.dma_idling = terga_mc_dma_idling_common,
.unblock_dma = terga_mc_unblock_dma_common,
.reset_status = terga_mc_reset_status_common,
const struct tegra_mc_reset_ops tegra_mc_reset_ops_common = {
.block_dma = tegra_mc_block_dma_common,
.dma_idling = tegra_mc_dma_idling_common,
.unblock_dma = tegra_mc_unblock_dma_common,
.reset_status = tegra_mc_reset_status_common,
};
static inline struct tegra_mc *reset_to_mc(struct reset_controller_dev *rcdev)
@ -282,25 +285,28 @@ static int tegra_mc_setup_latency_allowance(struct tegra_mc *mc)
u32 value;
/* compute the number of MC clock cycles per tick */
tick = mc->tick * clk_get_rate(mc->clk);
tick = (unsigned long long)mc->tick * clk_get_rate(mc->clk);
do_div(tick, NSEC_PER_SEC);
value = readl(mc->regs + MC_EMEM_ARB_CFG);
value = mc_readl(mc, MC_EMEM_ARB_CFG);
value &= ~MC_EMEM_ARB_CFG_CYCLES_PER_UPDATE_MASK;
value |= MC_EMEM_ARB_CFG_CYCLES_PER_UPDATE(tick);
writel(value, mc->regs + MC_EMEM_ARB_CFG);
mc_writel(mc, value, MC_EMEM_ARB_CFG);
/* write latency allowance defaults */
for (i = 0; i < mc->soc->num_clients; i++) {
const struct tegra_mc_la *la = &mc->soc->clients[i].la;
u32 value;
value = readl(mc->regs + la->reg);
value = mc_readl(mc, la->reg);
value &= ~(la->mask << la->shift);
value |= (la->def & la->mask) << la->shift;
writel(value, mc->regs + la->reg);
mc_writel(mc, value, la->reg);
}
/* latch new values */
mc_writel(mc, MC_TIMING_UPDATE, MC_TIMING_CONTROL);
return 0;
}

2
drivers/memory/tegra/mc.h
View File

@ -35,7 +35,7 @@ static inline void mc_writel(struct tegra_mc *mc, u32 value,
writel_relaxed(value, mc->regs + offset);
}
extern const struct tegra_mc_reset_ops terga_mc_reset_ops_common;
extern const struct tegra_mc_reset_ops tegra_mc_reset_ops_common;
#ifdef CONFIG_ARCH_TEGRA_2x_SOC
extern const struct tegra_mc_soc tegra20_mc_soc;

4
drivers/memory/tegra/tegra114.c
View File

@ -572,7 +572,7 @@ static const struct tegra_mc_client tegra114_mc_clients[] = {
},
}, {
.id = 0x34,
.name = "fdcwr2",
.name = "fdcdwr2",
.swgroup = TEGRA_SWGROUP_NV,
.smmu = {
.reg = 0x22c,
@ -975,7 +975,7 @@ const struct tegra_mc_soc tegra114_mc_soc = {
.smmu = &tegra114_smmu_soc,
.intmask = MC_INT_INVALID_SMMU_PAGE | MC_INT_SECURITY_VIOLATION |
MC_INT_DECERR_EMEM,
.reset_ops = &terga_mc_reset_ops_common,
.reset_ops = &tegra_mc_reset_ops_common,
.resets = tegra114_mc_resets,
.num_resets = ARRAY_SIZE(tegra114_mc_resets),
};

4
drivers/memory/tegra/tegra124.c
View File

@ -1074,7 +1074,7 @@ const struct tegra_mc_soc tegra124_mc_soc = {
.intmask = MC_INT_DECERR_MTS | MC_INT_SECERR_SEC | MC_INT_DECERR_VPR |
MC_INT_INVALID_APB_ASID_UPDATE | MC_INT_INVALID_SMMU_PAGE |
MC_INT_SECURITY_VIOLATION | MC_INT_DECERR_EMEM,
.reset_ops = &terga_mc_reset_ops_common,
.reset_ops = &tegra_mc_reset_ops_common,
.resets = tegra124_mc_resets,
.num_resets = ARRAY_SIZE(tegra124_mc_resets),
};
@ -1104,7 +1104,7 @@ const struct tegra_mc_soc tegra132_mc_soc = {
.intmask = MC_INT_DECERR_MTS | MC_INT_SECERR_SEC | MC_INT_DECERR_VPR |
MC_INT_INVALID_APB_ASID_UPDATE | MC_INT_INVALID_SMMU_PAGE |
MC_INT_SECURITY_VIOLATION | MC_INT_DECERR_EMEM,
.reset_ops = &terga_mc_reset_ops_common,
.reset_ops = &tegra_mc_reset_ops_common,
.resets = tegra124_mc_resets,
.num_resets = ARRAY_SIZE(tegra124_mc_resets),
};

28
drivers/memory/tegra/tegra20.c
View File

@ -198,7 +198,7 @@ static const struct tegra_mc_reset tegra20_mc_resets[] = {
TEGRA20_MC_RESET(VI, 0x100, 0x178, 0x104, 14),
};
static int terga20_mc_hotreset_assert(struct tegra_mc *mc,
static int tegra20_mc_hotreset_assert(struct tegra_mc *mc,
const struct tegra_mc_reset *rst)
{
unsigned long flags;
@ -214,7 +214,7 @@ static int terga20_mc_hotreset_assert(struct tegra_mc *mc,
return 0;
}
static int terga20_mc_hotreset_deassert(struct tegra_mc *mc,
static int tegra20_mc_hotreset_deassert(struct tegra_mc *mc,
const struct tegra_mc_reset *rst)
{
unsigned long flags;
@ -230,7 +230,7 @@ static int terga20_mc_hotreset_deassert(struct tegra_mc *mc,
return 0;
}
static int terga20_mc_block_dma(struct tegra_mc *mc,
static int tegra20_mc_block_dma(struct tegra_mc *mc,
const struct tegra_mc_reset *rst)
{
unsigned long flags;
@ -246,19 +246,19 @@ static int terga20_mc_block_dma(struct tegra_mc *mc,
return 0;
}
static bool terga20_mc_dma_idling(struct tegra_mc *mc,
static bool tegra20_mc_dma_idling(struct tegra_mc *mc,
const struct tegra_mc_reset *rst)
{
return mc_readl(mc, rst->status) == 0;
}
static int terga20_mc_reset_status(struct tegra_mc *mc,
static int tegra20_mc_reset_status(struct tegra_mc *mc,
const struct tegra_mc_reset *rst)
{
return (mc_readl(mc, rst->reset) & BIT(rst->bit)) == 0;
}
static int terga20_mc_unblock_dma(struct tegra_mc *mc,
static int tegra20_mc_unblock_dma(struct tegra_mc *mc,
const struct tegra_mc_reset *rst)
{
unsigned long flags;
@ -274,13 +274,13 @@ static int terga20_mc_unblock_dma(struct tegra_mc *mc,
return 0;
}
const struct tegra_mc_reset_ops terga20_mc_reset_ops = {
.hotreset_assert = terga20_mc_hotreset_assert,
.hotreset_deassert = terga20_mc_hotreset_deassert,
.block_dma = terga20_mc_block_dma,
.dma_idling = terga20_mc_dma_idling,
.unblock_dma = terga20_mc_unblock_dma,
.reset_status = terga20_mc_reset_status,
static const struct tegra_mc_reset_ops tegra20_mc_reset_ops = {
.hotreset_assert = tegra20_mc_hotreset_assert,
.hotreset_deassert = tegra20_mc_hotreset_deassert,
.block_dma = tegra20_mc_block_dma,
.dma_idling = tegra20_mc_dma_idling,
.unblock_dma = tegra20_mc_unblock_dma,
.reset_status = tegra20_mc_reset_status,
};
const struct tegra_mc_soc tegra20_mc_soc = {
@ -290,7 +290,7 @@ const struct tegra_mc_soc tegra20_mc_soc = {
.client_id_mask = 0x3f,
.intmask = MC_INT_SECURITY_VIOLATION | MC_INT_INVALID_GART_PAGE |
MC_INT_DECERR_EMEM,
.reset_ops = &terga20_mc_reset_ops,
.reset_ops = &tegra20_mc_reset_ops,
.resets = tegra20_mc_resets,
.num_resets = ARRAY_SIZE(tegra20_mc_resets),
};

2
drivers/memory/tegra/tegra210.c
View File

@ -1132,7 +1132,7 @@ const struct tegra_mc_soc tegra210_mc_soc = {
.intmask = MC_INT_DECERR_MTS | MC_INT_SECERR_SEC | MC_INT_DECERR_VPR |
MC_INT_INVALID_APB_ASID_UPDATE | MC_INT_INVALID_SMMU_PAGE |
MC_INT_SECURITY_VIOLATION | MC_INT_DECERR_EMEM,
.reset_ops = &terga_mc_reset_ops_common,
.reset_ops = &tegra_mc_reset_ops_common,
.resets = tegra210_mc_resets,
.num_resets = ARRAY_SIZE(tegra210_mc_resets),
};

4
drivers/memory/tegra/tegra30.c
View File

@ -726,7 +726,7 @@ static const struct tegra_mc_client tegra30_mc_clients[] = {
},
}, {
.id = 0x34,
.name = "fdcwr2",
.name = "fdcdwr2",
.swgroup = TEGRA_SWGROUP_NV2,
.smmu = {
.reg = 0x22c,
@ -999,7 +999,7 @@ const struct tegra_mc_soc tegra30_mc_soc = {
.smmu = &tegra30_smmu_soc,
.intmask = MC_INT_INVALID_SMMU_PAGE | MC_INT_SECURITY_VIOLATION |
MC_INT_DECERR_EMEM,
.reset_ops = &terga_mc_reset_ops_common,
.reset_ops = &tegra_mc_reset_ops_common,
.resets = tegra30_mc_resets,
.num_resets = ARRAY_SIZE(tegra30_mc_resets),
};